/* * XOTcl - Extended Object Tcl * * Copyright (C) 1999-2010 Gustaf Neumann (a), Uwe Zdun (a) * * (a) Vienna University of Economics and Business Administration * Institute. of Information Systems and New Media * A-1090, Augasse 2-6 * Vienna, Austria * * (b) University of Essen * Specification of Software Systems * Altendorferstrasse 97-101 * D-45143 Essen, Germany * * Permission to use, copy, modify, distribute, and sell this * software and its documentation for any purpose is hereby granted * without fee, provided that the above copyright notice appear in * all copies and that both that copyright notice and this permission * notice appear in supporting documentation. We make no * representations about the suitability of this software for any * purpose. It is provided "as is" without express or implied * warranty. * * * This software is based upon MIT Object Tcl by David Wetherall and * Christopher J. Lindblad, that contains the following copyright * message: * * "Copyright 1993 Massachusetts Institute of Technology * * Permission to use, copy, modify, distribute, and sell this * software and its documentation for any purpose is hereby granted * without fee, provided that the above copyright notice appear in * all copies and that both that copyright notice and this * permission notice appear in supporting documentation, and that * the name of M.I.T. not be used in advertising or publicity * pertaining to distribution of the software without specific, * written prior permission. M.I.T. makes no representations about * the suitability of this software for any purpose. It is * provided "as is" without express or implied warranty." * */ #define OO 1 #define XOTCL_C 1 #include "xotclInt.h" #include "xotclAccessInt.h" #ifdef COMPILE_XOTCL_STUBS # if defined(PRE86) extern XotclStubs xotclStubs; # else MODULE_SCOPE const XotclStubs * const xotclConstStubPtr; # endif #endif #ifdef XOTCL_MEM_COUNT int xotclMemCountInterpCounter = 0; #endif /* * Tcl_Obj Types for XOTcl Objects */ #ifdef USE_TCL_STUBS # define XOTcl_ExprObjCmd(clientData, interp, objc, objv) \ XOTclCallCommand(interp, XOTE_EXPR, objc, objv) # define XOTcl_SubstObjCmd(clientData, interp, objc, objv) \ XOTclCallCommand(interp, XOTE_SUBST, objc, objv) #else # define XOTcl_ExprObjCmd(clientData, interp, objc, objv) \ Tcl_ExprObjCmd(clientData, interp, objc, objv) # define XOTcl_SubstObjCmd(clientData, interp, objc, objv) \ Tcl_SubstObjCmd(clientData, interp, objc, objv) #endif int XOTclObjWrongArgs(Tcl_Interp *interp, char *msg, Tcl_Obj *cmdName, Tcl_Obj *methodName, char *arglist); static int XOTclDeprecatedCmd(Tcl_Interp *interp, char *what, char *oldCmd, char *newCmd); /* maybe move to stubs? */ static int createMethod(Tcl_Interp *interp, XOTclClass *cl, char *name, int objc, Tcl_Obj *CONST objv[]); static Tcl_Obj *NameInNamespaceObj(Tcl_Interp *interp, char *name, Tcl_Namespace *ns); static Tcl_Namespace *callingNameSpace(Tcl_Interp *interp); XOTCLINLINE static Tcl_Command NSFindCommand(Tcl_Interp *interp, char *name, Tcl_Namespace *ns); #ifdef EXPERIMENTAL_CMD_RESOLVER static int NSisXOTclNamespace(Tcl_Namespace *nsPtr); #endif XOTCLINLINE static void GuardAdd(Tcl_Interp *interp, XOTclCmdList *filterCL, Tcl_Obj *guard); static int GuardCheck(Tcl_Interp *interp, Tcl_Obj *guards); static int GuardCall(XOTclObject *obj, XOTclClass *cl, Tcl_Command cmd, Tcl_Interp *interp, Tcl_Obj *guard, XOTclCallStackContent *cscPtr); static void GuardDel(XOTclCmdList *filterCL); static int IsMetaClass(Tcl_Interp *interp, XOTclClass *cl, int withMixins); static int hasMixin(Tcl_Interp *interp, XOTclObject *obj, XOTclClass *cl); static int isSubType(XOTclClass *subcl, XOTclClass *cl); static int setInstVar(Tcl_Interp *interp, XOTclObject *obj, Tcl_Obj *name, Tcl_Obj *value); static void MixinComputeDefined(Tcl_Interp *interp, XOTclObject *obj); static XOTclClass *DefaultSuperClass(Tcl_Interp *interp, XOTclClass *cl, XOTclClass *mcl, int isMeta); static XOTclCallStackContent *CallStackGetFrame(Tcl_Interp *interp, Tcl_CallFrame **framePtrPtr); XOTCLINLINE static void CallStackPop(Tcl_Interp *interp, XOTclCallStackContent *cscPtr); XOTCLINLINE static void CallStackDoDestroy(Tcl_Interp *interp, XOTclObject *obj); static int XOTclCInvalidateObjectParameterMethod(Tcl_Interp *interp, XOTclClass *cl); static CONST char* AliasIndex(Tcl_DString *dsPtr, Tcl_Obj *cmdName, CONST char *methodName, int withPer_object); static int AliasAdd(Tcl_Interp *interp, Tcl_Obj *cmdName, CONST char *methodName, int withPer_object, char *cmd); static int AliasDelete(Tcl_Interp *interp, Tcl_Obj *cmdName, CONST char *methodName, int withPer_object); static Tcl_Obj *AliasGet(Tcl_Interp *interp, Tcl_Obj *cmdName, CONST char *methodName, int withPer_object); static int ListMethodName(Tcl_Interp *interp, XOTclObject *object, int withPer_object, CONST char *methodName); typedef enum { CALLING_LEVEL, ACTIVE_LEVEL } CallStackLevel; typedef struct callFrameContext { int framesSaved; Tcl_CallFrame *framePtr; Tcl_CallFrame *varFramePtr; } callFrameContext; typedef struct XOTclProcContext { ClientData oldDeleteData; Tcl_CmdDeleteProc *oldDeleteProc; XOTclParamDefs *paramDefs; } XOTclProcContext; typedef struct tclCmdClientData { XOTclObject *obj; Tcl_Obj *cmdName; } tclCmdClientData; typedef struct forwardCmdClientData { XOTclObject *obj; Tcl_Obj *cmdName; Tcl_ObjCmdProc *objProc; ClientData clientData; int passthrough; int needobjmap; int verbose; int hasNonposArgs; int nr_args; Tcl_Obj *args; int objscope; Tcl_Obj *onerror; Tcl_Obj *prefix; int nr_subcommands; Tcl_Obj *subcommands; } forwardCmdClientData; typedef struct AliasCmdClientData { XOTclObject *obj; Tcl_Obj *cmdName; Tcl_ObjCmdProc *objProc; ClientData clientData; XOTclClass *class; Tcl_Interp *interp; Tcl_Command aliasedCmd; Tcl_Command aliasCmd; } AliasCmdClientData; #define PARSE_CONTEXT_PREALLOC 20 typedef struct { ClientData *clientData; Tcl_Obj **objv; Tcl_Obj **full_objv; int *flags; ClientData clientData_static[PARSE_CONTEXT_PREALLOC]; Tcl_Obj *objv_static[PARSE_CONTEXT_PREALLOC+1]; int flags_static[PARSE_CONTEXT_PREALLOC+1]; int lastobjc; int objc; int mustDecr; int varArgs; XOTclObject *obj; } parseContext; #if defined(CANONICAL_ARGS) static int ProcessMethodArguments(parseContext *pcPtr, Tcl_Interp *interp, XOTclObject *obj, int pushFrame, XOTclParamDefs *paramDefs, char *methodName, int objc, Tcl_Obj *CONST objv[]); #endif static void parseContextInit(parseContext *pcPtr, int objc, XOTclObject *obj, Tcl_Obj *procName) { if (objc < PARSE_CONTEXT_PREALLOC) { /* the single larger memset below .... */ memset(pcPtr, 0, sizeof(parseContext)); /* ... is faster than the two smaller memsets below */ /* memset(pcPtr->clientData_static, 0, sizeof(ClientData)*(objc)); memset(pcPtr->objv_static, 0, sizeof(Tcl_Obj*)*(objc+1));*/ pcPtr->full_objv = &pcPtr->objv_static[0]; pcPtr->clientData = &pcPtr->clientData_static[0]; pcPtr->flags = &pcPtr->flags_static[0]; } else { pcPtr->full_objv = (Tcl_Obj **)ckalloc(sizeof(Tcl_Obj*)*(objc+1)); pcPtr->flags = (int*)ckalloc(sizeof(int)*(objc+1)); pcPtr->clientData = (ClientData*)ckalloc(sizeof(ClientData)*objc); /*fprintf(stderr, "ParseContextMalloc %d objc, %p %p\n", objc, pcPtr->full_objv, pcPtr->clientData);*/ memset(pcPtr->full_objv, 0, sizeof(Tcl_Obj*)*(objc+1)); memset(pcPtr->flags, 0, sizeof(int)*(objc+1)); memset(pcPtr->clientData, 0, sizeof(ClientData)*(objc)); } pcPtr->objv = &pcPtr->full_objv[1]; pcPtr->full_objv[0] = procName; pcPtr->obj = obj; pcPtr->varArgs = 0; pcPtr->mustDecr = 0; } static void parseContextExtendObjv(parseContext *pcPtr, int from, int elts, Tcl_Obj *CONST source[]) { int requiredSize = from + elts + 1; /*XOTclPrintObjv("BEFORE: ", pcPtr->objc, pcPtr->full_objv);*/ if (requiredSize >= PARSE_CONTEXT_PREALLOC) { if (pcPtr->objv == &pcPtr->objv_static[1]) { /* realloc from preallocated memory */ pcPtr->full_objv = (Tcl_Obj **)ckalloc(sizeof(Tcl_Obj*) * requiredSize); memcpy(pcPtr->full_objv, &pcPtr->objv_static[0], sizeof(Tcl_Obj*) * PARSE_CONTEXT_PREALLOC); /*fprintf(stderr, "alloc %d new objv=%p pcPtr %p\n", requiredSize, pcPtr->full_objv, pcPtr);*/ } else { /* realloc from mallocated memory */ pcPtr->full_objv = (Tcl_Obj **)ckrealloc((char *)pcPtr->full_objv, sizeof(Tcl_Obj*) * requiredSize); /*fprintf(stderr, "realloc %d new objv=%p pcPtr %p\n", requiredSize, pcPtr->full_objv, pcPtr);*/ } pcPtr->objv = &pcPtr->full_objv[1]; } memcpy(pcPtr->objv + from, source, sizeof(Tcl_Obj *) * (elts)); pcPtr->objc += elts; /*XOTclPrintObjv("AFTER: ", pcPtr->objc, pcPtr->full_objv);*/ } static void parseContextRelease(parseContext *pcPtr) { if (pcPtr->mustDecr) { int i; for (i = 0; i < pcPtr->lastobjc; i++) { if (pcPtr->flags[i] & XOTCL_PC_MUST_DECR) { DECR_REF_COUNT(pcPtr->objv[i]); } } } /* objv can be separately extended */ if (pcPtr->objv != &pcPtr->objv_static[1]) { /*fprintf(stderr, "parseContextRelease %p free %p %p\n", pcPtr, pcPtr->full_objv, pcPtr->clientData);*/ ckfree((char *)pcPtr->full_objv); } /* if the parameter definition was extended, both clientData and flags are extended */ if (pcPtr->clientData != &pcPtr->clientData_static[0]) { /*fprintf(stderr, "free clientdata and flags\n");*/ ckfree((char *)pcPtr->clientData); ckfree((char *)pcPtr->flags); } } XOTCLINLINE static int ObjectDispatch(ClientData clientData, Tcl_Interp *interp, int objc, Tcl_Obj *CONST objv[], int flags); static int XOTclNextMethod(XOTclObject *obj, Tcl_Interp *interp, XOTclClass *givenCl, char *givenMethod, int objc, Tcl_Obj *CONST objv[], int useCSObjs, XOTclCallStackContent *cscPtr); static int XOTclForwardMethod(ClientData clientData, Tcl_Interp *interp, int objc, Tcl_Obj *CONST objv[]); static int XOTclObjscopedMethod(ClientData clientData, Tcl_Interp *interp, int objc, Tcl_Obj *CONST objv[]); static int XOTclSetterMethod(ClientData clientData, Tcl_Interp *interp, int objc, Tcl_Obj *CONST objv[]); static int callDestroyMethod(Tcl_Interp *interp, XOTclObject *obj, int flags); static int GetObjectFromObj(Tcl_Interp *interp, register Tcl_Obj *objPtr, XOTclObject **obj); static XOTclObject *XOTclpGetObject(Tcl_Interp *interp, char *name); static XOTclClass *XOTclpGetClass(Tcl_Interp *interp, char *name); #if !defined(NDEBUG) static void checkAllInstances(Tcl_Interp *interp, XOTclClass *startCl, int lvl); #endif #if defined(PRE85) # define XOTcl_FindHashEntry(tablePtr, key) Tcl_FindHashEntry(tablePtr, key) #else # define XOTcl_FindHashEntry(tablePtr, key) Tcl_CreateHashEntry(tablePtr, key, NULL) #endif /* * Var Reform Compatibility support */ #if !defined(TclOffset) #ifdef offsetof #define TclOffset(type, field) ((int) offsetof(type, field)) #else #define TclOffset(type, field) ((int) ((char *) &((type *) 0)->field)) #endif #endif #if defined(PRE85) && FORWARD_COMPATIBLE /* * Define the types missing for the forward compatible mode */ typedef Var * (Tcl_VarHashCreateVarFunction) _ANSI_ARGS_( (TclVarHashTable *tablePtr, Tcl_Obj *key, int *newPtr) ); typedef void (Tcl_InitVarHashTableFunction) _ANSI_ARGS_( (TclVarHashTable *tablePtr, Namespace *nsPtr) ); typedef void (Tcl_CleanupVarFunction) _ANSI_ARGS_ ( (Var * varPtr, Var *arrayPtr) ); typedef Var * (Tcl_DeleteVarFunction) _ANSI_ARGS_ ( (Interp *iPtr, TclVarHashTable *tablePtr) ); typedef Var * (lookupVarFromTableFunction) _ANSI_ARGS_ ( (TclVarHashTable *varTable, CONST char *simpleName, XOTclObject *obj) ); typedef struct TclVarHashTable85 { Tcl_HashTable table; struct Namespace *nsPtr; } TclVarHashTable85; typedef struct Var85 { int flags; union { Tcl_Obj *objPtr; TclVarHashTable85 *tablePtr; struct Var85 *linkPtr; } value; } Var85; typedef struct VarInHash { Var85 var; int refCount; Tcl_HashEntry entry; } VarInHash; typedef struct Tcl_CallFrame85 { Tcl_Namespace *nsPtr; int dummy1; int dummy2; char *dummy3; char *dummy4; char *dummy5; int dummy6; char *dummy7; char *dummy8; int dummy9; char *dummy10; char *dummy11; char *dummy12; } Tcl_CallFrame85; typedef struct CallFrame85 { Namespace *nsPtr; int isProcCallFrame; int objc; Tcl_Obj *CONST *objv; struct CallFrame *callerPtr; struct CallFrame *callerVarPtr; int level; Proc *procPtr; TclVarHashTable *varTablePtr; int numCompiledLocals; Var85 *compiledLocals; ClientData clientData; void *localCachePtr; } CallFrame85; /* * These are global variables, but thread-safe, since they * are only set during initialzation and they are never changed, * and the variables are single words. */ static int forwardCompatibleMode; static Tcl_VarHashCreateVarFunction *tclVarHashCreateVar; static Tcl_InitVarHashTableFunction *tclInitVarHashTable; static Tcl_CleanupVarFunction *tclCleanupVar; static lookupVarFromTableFunction *lookupVarFromTable; static int varRefCountOffset; static int varHashTableSize; # define VarHashRefCount(varPtr) \ (*((int *) (((char *)(varPtr))+varRefCountOffset))) # define VarHashGetValue(hPtr) \ (forwardCompatibleMode ? \ (Var *) ((char *)hPtr - TclOffset(VarInHash, entry)) : \ (Var *) Tcl_GetHashValue(hPtr) \ ) #define VarHashGetKey(varPtr) \ (((VarInHash *)(varPtr))->entry.key.objPtr) #define VAR_TRACED_READ85 0x10 /* TCL_TRACE_READS */ #define VAR_TRACED_WRITE85 0x20 /* TCL_TRACE_WRITES */ #define VAR_TRACED_UNSET85 0x40 /* TCL_TRACE_UNSETS */ #define VAR_TRACED_ARRAY85 0x800 /* TCL_TRACE_ARRAY */ #define VAR_TRACE_ACTIVE85 0x2000 #define VAR_SEARCH_ACTIVE85 0x4000 #define VAR_ALL_TRACES85 \ (VAR_TRACED_READ85|VAR_TRACED_WRITE85|VAR_TRACED_ARRAY85|VAR_TRACED_UNSET85) #define VAR_ARRAY85 0x1 #define VAR_LINK85 0x2 #define varFlags(varPtr) \ (forwardCompatibleMode ? \ ((Var85 *)varPtr)->flags : \ (varPtr)->flags \ ) #undef TclIsVarScalar #define TclIsVarScalar(varPtr) \ (forwardCompatibleMode ? \ !(((Var85 *)varPtr)->flags & (VAR_ARRAY85|VAR_LINK85)) : \ ((varPtr)->flags & VAR_SCALAR) \ ) #undef TclIsVarArray #define TclIsVarArray(varPtr) \ (forwardCompatibleMode ? \ (((Var85 *)varPtr)->flags & VAR_ARRAY85) : \ ((varPtr)->flags & VAR_ARRAY) \ ) #define TclIsVarNamespaceVar(varPtr) \ (forwardCompatibleMode ? \ (((Var85 *)varPtr)->flags & VAR_NAMESPACE_VAR) : \ ((varPtr)->flags & VAR_NAMESPACE_VAR) \ ) #define TclIsVarTraced(varPtr) \ (forwardCompatibleMode ? \ (((Var85 *)varPtr)->flags & VAR_ALL_TRACES85) : \ (varPtr->tracePtr != NULL) \ ) #undef TclIsVarLink #define TclIsVarLink(varPtr) \ (forwardCompatibleMode ? \ (((Var85 *)varPtr)->flags & VAR_LINK85) : \ (varPtr->flags & VAR_LINK) \ ) #undef TclIsVarUndefined #define TclIsVarUndefined(varPtr) \ (forwardCompatibleMode ? \ (((Var85 *)varPtr)->value.objPtr == NULL) : \ (varPtr->flags & VAR_UNDEFINED) \ ) #undef TclSetVarLink #define TclSetVarLink(varPtr) \ if (forwardCompatibleMode) \ ((Var85 *)varPtr)->flags = (((Var85 *)varPtr)->flags & ~VAR_ARRAY85) | VAR_LINK85; \ else \ (varPtr)->flags = ((varPtr)->flags & ~(VAR_SCALAR|VAR_ARRAY)) | VAR_LINK #undef TclClearVarUndefined #define TclClearVarUndefined(varPtr) \ if (!forwardCompatibleMode) \ (varPtr)->flags &= ~VAR_UNDEFINED #undef Tcl_CallFrame_compiledLocals #define Tcl_CallFrame_compiledLocals(cf) \ (forwardCompatibleMode ? \ (Var *)(((CallFrame85 *)cf)->compiledLocals) : \ (((CallFrame*)cf)->compiledLocals) \ ) #define getNthVar(varPtr, i) \ (forwardCompatibleMode ? \ (Var *)(((Var85 *)varPtr)+(i)) : \ (((Var *)varPtr)+(i)) \ ) #define valueOfVar(type, varPtr, field) \ (forwardCompatibleMode ? \ (type *)(((Var85 *)varPtr)->value.field) : \ (type *)(((Var *)varPtr)->value.field) \ ) #endif #if !FORWARD_COMPATIBLE # define getNthVar(varPtr, i) (((Var *)varPtr)+(i)) #endif #define TclIsCompiledLocalArgument(compiledLocalPtr) \ ((compiledLocalPtr)->flags & VAR_ARGUMENT) #define TclIsCompiledLocalTemporary(compiledLocalPtr) \ ((compiledLocalPtr)->flags & VAR_TEMPORARY) #if defined(PRE85) && !FORWARD_COMPATIBLE # define VarHashGetValue(hPtr) (Var *)Tcl_GetHashValue(hPtr) # define VarHashRefCount(varPtr) (varPtr)->refCount # define TclIsVarTraced(varPtr) (varPtr->tracePtr != NULL) # define TclIsVarNamespaceVar(varPtr) ((varPtr)->flags & VAR_NAMESPACE_VAR) # define varHashTableSize sizeof(TclVarHashTable) # define valueOfVar(type, varPtr, field) (type *)(varPtr)->value.field #endif #if defined(PRE85) /* * We need NewVar from tclVar.c ... but its not exported */ static Var *NewVar84() { register Var *varPtr; varPtr = (Var *) ckalloc(sizeof(Var)); varPtr->value.objPtr = NULL; varPtr->name = NULL; varPtr->nsPtr = NULL; varPtr->hPtr = NULL; varPtr->refCount = 0; varPtr->tracePtr = NULL; varPtr->searchPtr = NULL; varPtr->flags = (VAR_SCALAR | VAR_UNDEFINED | VAR_IN_HASHTABLE); return varPtr; } static Var * VarHashCreateVar84(TclVarHashTable *tablePtr, Tcl_Obj *key, int *newPtr) { char *newName = ObjStr(key); Tcl_HashEntry *hPtr = Tcl_CreateHashEntry(tablePtr, newName, newPtr); Var *varPtr; if (newPtr && *newPtr) { varPtr = NewVar84(); Tcl_SetHashValue(hPtr, varPtr); varPtr->hPtr = hPtr; varPtr->nsPtr = NULL; /* a local variable */ } else { varPtr = (Var *) Tcl_GetHashValue(hPtr); } return varPtr; } static void InitVarHashTable84(TclVarHashTable *tablePtr, Namespace *nsPtr) { /* fprintf(stderr, "InitVarHashTable84\n"); */ Tcl_InitHashTable((tablePtr), TCL_STRING_KEYS); } static void TclCleanupVar84(Var * varPtr, Var *arrayPtr) { if (TclIsVarUndefined(varPtr) && (varPtr->refCount == 0) && (varPtr->tracePtr == NULL) && (varPtr->flags & VAR_IN_HASHTABLE)) { if (varPtr->hPtr) { Tcl_DeleteHashEntry(varPtr->hPtr); } ckfree((char *) varPtr); } if (arrayPtr) { if (TclIsVarUndefined(arrayPtr) && (arrayPtr->refCount == 0) && (arrayPtr->tracePtr == NULL) && (arrayPtr->flags & VAR_IN_HASHTABLE)) { if (arrayPtr->hPtr) { Tcl_DeleteHashEntry(arrayPtr->hPtr); } ckfree((char *) arrayPtr); } } } static Var * LookupVarFromTable84(TclVarHashTable *varTable, CONST char *simpleName, XOTclObject *obj) { Var *varPtr = NULL; Tcl_HashEntry *entryPtr; if (varTable) { entryPtr = XOTcl_FindHashEntry(varTable, simpleName); if (entryPtr) { varPtr = VarHashGetValue(entryPtr); } } return varPtr; } #endif #if defined(PRE85) # if FORWARD_COMPATIBLE # define VarHashCreateVar (*tclVarHashCreateVar) # define InitVarHashTable (*tclInitVarHashTable) # define CleanupVar (*tclCleanupVar) # define LookupVarFromTable (*lookupVarFromTable) # define TclCallFrame Tcl_CallFrame85 # else # define VarHashCreateVar VarHashCreateVar84 # define InitVarHashTable InitVarHashTable84 # define CleanupVar TclCleanupVar84 # define LookupVarFromTable LookupVarFromTable84 # define TclCallFrame Tcl_CallFrame # endif #else # define VarHashCreateVar VarHashCreateVar85 # define InitVarHashTable TclInitVarHashTable # define CleanupVar TclCleanupVar # define LookupVarFromTable LookupVarFromTable85 # define TclCallFrame Tcl_CallFrame #endif #if defined(PRE85) /* * for backward compatibility */ #define VarHashTable(t) t #define TclVarHashTable Tcl_HashTable static Var * XOTclObjLookupVar(Tcl_Interp *interp, Tcl_Obj *part1Ptr, CONST char *part2, int flags, const char *msg, int createPart1, int createPart2, Var **arrayPtrPtr) { return TclLookupVar(interp, ObjStr(part1Ptr), part2, flags, msg, createPart1, createPart2, arrayPtrPtr); } #define ObjFindNamespace(interp, objPtr) \ Tcl_FindNamespace((interp), ObjStr(objPtr), NULL, 0); #else /* * definitions for tcl 8.5 */ #define VarHashGetValue(hPtr) \ ((Var *) ((char *)hPtr - TclOffset(VarInHash, entry))) #define VarHashGetKey(varPtr) \ (((VarInHash *)(varPtr))->entry.key.objPtr) #define VarHashTable(varTable) \ &(varTable)->table #define XOTclObjLookupVar TclObjLookupVar #define varHashTableSize sizeof(TclVarHashTable) #define valueOfVar(type, varPtr, field) (type *)(varPtr)->value.field XOTCLINLINE static Tcl_Namespace * ObjFindNamespace(Tcl_Interp *interp, Tcl_Obj *objPtr) { Tcl_Namespace *nsPtr; if (TclGetNamespaceFromObj(interp, objPtr, &nsPtr) == TCL_OK) { return nsPtr; } else { return NULL; } } #endif #if !defined(PRE85) || FORWARD_COMPATIBLE static XOTCLINLINE Var * VarHashCreateVar85(TclVarHashTable *tablePtr, Tcl_Obj *key, int *newPtr) { Var *varPtr = NULL; Tcl_HashEntry *hPtr; hPtr = Tcl_CreateHashEntry((Tcl_HashTable *) tablePtr, (char *) key, newPtr); if (hPtr) { varPtr = VarHashGetValue(hPtr); } return varPtr; } static XOTCLINLINE Var * LookupVarFromTable85(TclVarHashTable *tablePtr, CONST char *simpleName, XOTclObject *obj) { Var *varPtr = NULL; if (tablePtr) { Tcl_Obj *keyPtr = Tcl_NewStringObj(simpleName, -1); Tcl_IncrRefCount(keyPtr); varPtr = VarHashCreateVar85(tablePtr, keyPtr, NULL); Tcl_DecrRefCount(keyPtr); } return varPtr; } #endif static TclVarHashTable * VarHashTableCreate() { TclVarHashTable *varTablePtr = (TclVarHashTable *) ckalloc(varHashTableSize); InitVarHashTable(varTablePtr, NULL); return varTablePtr; } /* * call an XOTcl method */ static int callMethod(ClientData clientData, Tcl_Interp *interp, Tcl_Obj *method, int objc, Tcl_Obj *CONST objv[], int flags) { XOTclObject *obj = (XOTclObject*) clientData; int result; ALLOC_ON_STACK(Tcl_Obj*, objc, tov); /*fprintf(stderr, "%%%% callmethod called with method %p\n", method),*/ tov[0] = obj->cmdName; tov[1] = method; if (objc>2) memcpy(tov+2, objv, sizeof(Tcl_Obj *)*(objc-2)); /*fprintf(stderr, "%%%% callMethod cmdname=%s, method=%s, objc=%d\n", ObjStr(tov[0]), ObjStr(tov[1]), objc); {int i; fprintf(stderr, "\t CALL: %s ", ObjStr(method));for(i=0; i1); tov[0] = obj->cmdName; tov[1] = method; if (objc>2) { tov[2] = arg; } if (objc>3) memcpy(tov+3, objv, sizeof(Tcl_Obj *)*(objc-3)); /*fprintf(stderr, "%%%% callMethodWithArg cmdname=%s, method=%s, objc=%d\n", ObjStr(tov[0]), ObjStr(tov[1]), objc);*/ result = ObjectDispatch(clientData, interp, objc, tov, flags); FREE_ON_STACK(tov); return result; } #if defined(TCL85STACK) # include "xotclStack85.c" #else # include "xotclStack.c" #endif /* extern callable GetSelfObj */ XOTcl_Object* XOTclGetSelfObj(Tcl_Interp *interp) { return (XOTcl_Object*)GetSelfObj(interp); } #ifdef DISPATCH_TRACE static void printObjv(int objc, Tcl_Obj *CONST objv[]) { int i, j; fprintf(stderr, "(%d)", objc); if (objc <= 3) j = objc; else j = 3; for (i=0;i 3) fprintf(stderr, " ..."); fprintf(stderr, " (objc=%d)", objc); } static void printCall(Tcl_Interp *interp, char *string, int objc, Tcl_Obj *CONST objv[]) { fprintf(stderr, " (%d) >%s: ", Tcl_Interp_numLevels(interp), string); printObjv(objc, objv); fprintf(stderr, "\n"); } static void printExit(Tcl_Interp *interp, char *string, int objc, Tcl_Obj *CONST objv[], int result) { fprintf(stderr, " (%d) <%s: ", Tcl_Interp_numLevels(interp), string); /*printObjv(objc, objv);*/ fprintf(stderr, " result=%d '%s'\n", result, ObjStr(Tcl_GetObjResult(interp))); } #endif /* * XOTclObject Reference Accounting */ #if defined(XOTCLOBJ_TRACE) # define XOTclObjectRefCountIncr(obj) \ (obj)->refCount++; \ fprintf(stderr, "RefCountIncr %p count=%d %s\n", obj, obj->refCount, obj->cmdName?ObjStr(obj->cmdName):"no name"); \ MEM_COUNT_ALLOC("XOTclObject RefCount", obj) # define XOTclObjectRefCountDecr(obj) \ (obj)->refCount--; \ fprintf(stderr, "RefCountDecr %p count=%d\n", obj, obj->refCount); \ MEM_COUNT_FREE("XOTclObject RefCount", obj) #else # define XOTclObjectRefCountIncr(obj) \ (obj)->refCount++; \ MEM_COUNT_ALLOC("XOTclObject RefCount", obj) # define XOTclObjectRefCountDecr(obj) \ (obj)->refCount--; \ MEM_COUNT_FREE("XOTclObject RefCount", obj) #endif #if defined(XOTCLOBJ_TRACE) void objTrace(char *string, XOTclObject *obj) { if (obj) fprintf(stderr, "--- %s tcl %p %s (%d %p) xotcl %p (%d) %s \n", string, obj->cmdName, obj->cmdName->typePtr ? obj->cmdName->typePtr->name : "NULL", obj->cmdName->refCount, obj->cmdName->internalRep.twoPtrValue.ptr1, obj, obj->refCount, objectName(obj)); else fprintf(stderr, "--- No object: %s\n", string); } #else # define objTrace(a, b) #endif /* search for tail of name */ static CONST char * NSTail(CONST char *string) { register char *p = (char *)string+strlen(string); while (p > string) { if (*p == ':' && *(p-1) == ':') return p+1; p--; } return string; } XOTCLINLINE static int isClassName(char *string) { return (strncmp((string), "::xotcl::classes", 16) == 0); } /* removes preceding ::xotcl::classes from a string */ XOTCLINLINE static char * NSCutXOTclClasses(char *string) { assert(strncmp((string), "::xotcl::classes", 16) == 0); return string+16; } XOTCLINLINE static char * NSCmdFullName(Tcl_Command cmd) { Tcl_Namespace *nsPtr = Tcl_Command_nsPtr(cmd); return nsPtr ? nsPtr->fullName : ""; } static void XOTclCleanupObject(XOTclObject *obj) { XOTclObjectRefCountDecr(obj); /*fprintf(stderr, "XOTclCleanupObject %p refcount %d\n", obj, obj->refCount);*/ if (obj->refCount <= 0) { assert(obj->refCount == 0); assert(obj->flags & XOTCL_DELETED); MEM_COUNT_FREE("XOTclObject/XOTclClass", obj); #if defined(XOTCLOBJ_TRACE) fprintf(stderr, "CKFREE Object %p refcount=%d\n", obj, obj->refCount); #endif #if !defined(NDEBUG) memset(obj, 0, sizeof(XOTclObject)); #endif /*fprintf(stderr, "CKFREE obj %p\n", obj);*/ ckfree((char *) obj); } } /* * Tcl_Obj functions for objects */ /* todo more generic */ XOTCLINLINE static CONST86 Tcl_ObjType * GetCmdNameType(Tcl_ObjType CONST86 *cmdType) { static Tcl_ObjType CONST86 *tclCmdNameType = NULL; if (tclCmdNameType == NULL) { static XOTclMutex initMutex = 0; XOTclMutexLock(&initMutex); if (tclCmdNameType == NULL) tclCmdNameType = Tcl_GetObjType("cmdName"); XOTclMutexUnlock(&initMutex); } return tclCmdNameType; } static int IsXOTclTclObj(Tcl_Interp *interp, Tcl_Obj *objPtr, XOTclObject **objectPtr) { Tcl_ObjType CONST86 *cmdType = objPtr->typePtr; if (cmdType == GetCmdNameType(cmdType)) { Tcl_Command cmd = Tcl_GetCommandFromObj(interp, objPtr); if (cmd) { XOTclObject *o = XOTclGetObjectFromCmdPtr(cmd); if (o) { *objectPtr = o; return 1; } } } return 0; } /* Lookup an XOTcl object from the given objPtr, preferably from an * object of type "cmdName". objPtr might be converted in this process. */ static int GetObjectFromObj(Tcl_Interp *interp, Tcl_Obj *objPtr, XOTclObject **objectPtr) { int result; XOTclObject *nobject; char *string; Tcl_Command cmd; /*fprintf(stderr, "GetObjectFromObj obj %p %s is of type %s\n", objPtr, ObjStr(objPtr), objPtr->typePtr ? objPtr->typePtr->name : "(null)");*/ /* in case, objPtr was not of type cmdName, try to convert */ cmd = Tcl_GetCommandFromObj(interp, objPtr); /*fprintf(stderr, "GetObjectFromObj obj %s => cmd=%p\n", ObjStr(objPtr), cmd);*/ if (cmd) { XOTclObject *o = XOTclGetObjectFromCmdPtr(cmd); /*fprintf(stderr, "GetObjectFromObj obj %s, o is %p objProc %p XOTclObjDispatch %p\n", ObjStr(objPtr), o, Tcl_Command_objProc(cmd), XOTclObjDispatch);*/ if (o) { if (objectPtr) *objectPtr = o; return TCL_OK; } } /*fprintf(stderr, "GetObjectFromObj convertFromAny for %s type %p %s\n", ObjStr(objPtr), objPtr->typePtr, objPtr->typePtr?objPtr->typePtr->name : "(none)");*/ /* In case, we have to revolve via the callingNameSpace (i.e. the * argument is not fully qualified), we retry here. */ string = ObjStr(objPtr); if (!isAbsolutePath(string)) { Tcl_Obj *tmpName = NameInNamespaceObj(interp, string, callingNameSpace(interp)); char *nsString = ObjStr(tmpName); INCR_REF_COUNT(tmpName); nobject = XOTclpGetObject(interp, nsString); /*fprintf(stderr, " RETRY, string '%s' returned %p\n", nsString, nobj);*/ DECR_REF_COUNT(tmpName); } else { nobject = NULL; } if (nobject) { if (objectPtr) *objectPtr = nobject; result = TCL_OK; } else { result = TCL_ERROR; } return result; } static int GetClassFromObj(Tcl_Interp *interp, register Tcl_Obj *objPtr, XOTclClass **cl, XOTclClass *base) { XOTclObject *obj; XOTclClass *cls = NULL; int result = TCL_OK; char *objName = ObjStr(objPtr); Tcl_Command cmd ; /*fprintf(stderr, "GetClassFromObj %s base %p\n", objName, base);*/ cmd = Tcl_GetCommandFromObj(interp, objPtr); if (cmd) { cls = XOTclGetClassFromCmdPtr(cmd); if (cls) { if (cl) *cl = cls; return TCL_OK; } } result = GetObjectFromObj(interp, objPtr, &obj); if (result == TCL_OK) { cls = XOTclObjectToClass(obj); if (cls) { if (cl) *cl = cls; return TCL_OK; } else { /* flag, that we could not convert so far */ result = TCL_ERROR; } } /*fprintf(stderr, "try unknown, result so far is %d\n", result);*/ if (base) { Tcl_Obj *nameObj = isAbsolutePath(objName) ? objPtr : NameInNamespaceObj(interp, objName, callingNameSpace(interp)); INCR_REF_COUNT(nameObj); /*fprintf(stderr, "+++ calling __unknown for %s name=%s\n", objectName(base), ObjStr(nameObj));*/ result = callMethod((ClientData) base, interp, XOTclGlobalObjects[XOTE___UNKNOWN], 3, &nameObj, XOTCL_CM_NO_PROTECT); if (result == TCL_OK) { result = GetClassFromObj(interp, objPtr, cl, 0); } DECR_REF_COUNT(nameObj); } return result; } static Tcl_Obj * NameInNamespaceObj(Tcl_Interp *interp, char *name, Tcl_Namespace *nsPtr) { Tcl_Obj *objName; int len; char *p; /*fprintf(stderr, "NameInNamespaceObj %s (%p, %s) ", name, nsPtr, nsPtr?nsPtr->fullName:NULL);*/ if (!nsPtr) nsPtr = Tcl_GetCurrentNamespace(interp); /* fprintf(stderr, " (resolved %p, %s) ", nsPtr, nsPtr?nsPtr->fullName:NULL);*/ objName = Tcl_NewStringObj(nsPtr->fullName,-1); len = Tcl_GetCharLength(objName); p = ObjStr(objName); if (len == 2 && p[0] == ':' && p[1] == ':') { } else { Tcl_AppendToObj(objName, "::", 2); } Tcl_AppendToObj(objName, name, -1); /*fprintf(stderr, "returns %s\n", ObjStr(objName));*/ return objName; } extern void XOTclClassListFree(XOTclClasses *sl) { XOTclClasses *n; for (; sl; sl = n) { n = sl->nextPtr; FREE(XOTclClasses, sl); } } /* reverse class list, caller is responsible for freeing data */ static XOTclClasses* XOTclReverseClasses(XOTclClasses *sl) { XOTclClasses *firstPtr = NULL; for (; sl; sl = sl->nextPtr) { XOTclClasses *element = NEW(XOTclClasses); element->cl = sl->cl; element->clientData = sl->clientData; element->nextPtr = firstPtr; firstPtr = element; } return firstPtr; } extern XOTclClasses** XOTclClassListAdd(XOTclClasses **cList, XOTclClass *cl, ClientData clientData) { XOTclClasses *l = *cList, *element = NEW(XOTclClasses); element->cl = cl; element->clientData = clientData; element->nextPtr = NULL; if (l) { while (l->nextPtr) l = l->nextPtr; l->nextPtr = element; } else *cList = element; return &(element->nextPtr); } void XOTclObjectListFree(XOTclObjects *sl) { XOTclObjects *n; for (; sl; sl = n) { n = sl->nextPtr; FREE(XOTclObjects, sl); } } XOTclObjects** XOTclObjectListAdd(XOTclObjects **cList, XOTclObject *obj) { XOTclObjects *l = *cList, *element = NEW(XOTclObjects); element->obj = obj; element->nextPtr = NULL; if (l) { while (l->nextPtr) l = l->nextPtr; l->nextPtr = element; } else *cList = element; return &(element->nextPtr); } /* * precedence ordering functions */ enum colors { WHITE, GRAY, BLACK }; static XOTclClasses *Super(XOTclClass *cl) { return cl->super; } static XOTclClasses *Sub(XOTclClass *cl) { return cl->sub; } static int TopoSort(XOTclClass *cl, XOTclClass *base, XOTclClasses *(*next)(XOTclClass*)) { /*XOTclClasses *sl = (*next)(cl);*/ XOTclClasses *sl = next == Super ? cl->super : cl->sub; XOTclClasses *pl; /* * careful to reset the color of unreported classes to * white in case we unwind with error, and on final exit * reset color of reported classes to white */ cl->color = GRAY; for (; sl; sl = sl->nextPtr) { XOTclClass *sc = sl->cl; if (sc->color == GRAY) { cl->color = WHITE; return 0; } if (sc->color == WHITE && !TopoSort(sc, base, next)) { cl->color = WHITE; if (cl == base) { register XOTclClasses *pc; for (pc = cl->order; pc; pc = pc->nextPtr) { pc->cl->color = WHITE; } } return 0; } } cl->color = BLACK; pl = NEW(XOTclClasses); pl->cl = cl; pl->nextPtr = base->order; base->order = pl; if (cl == base) { register XOTclClasses *pc; for (pc = cl->order; pc; pc = pc->nextPtr) { pc->cl->color = WHITE; } } return 1; } static XOTclClasses* TopoOrder(XOTclClass *cl, XOTclClasses *(*next)(XOTclClass*)) { if (TopoSort(cl, cl, next)) return cl->order; XOTclClassListFree(cl->order); return cl->order = NULL; } static XOTclClasses* ComputeOrder(XOTclClass *cl, XOTclClasses *order, XOTclClasses *(*direction)(XOTclClass*)) { if (order) return order; return cl->order = TopoOrder(cl, direction); } extern XOTclClasses* XOTclComputePrecedence(XOTclClass *cl) { return ComputeOrder(cl, cl->order, Super); } extern XOTclClasses* XOTclComputeDependents(XOTclClass *cl) { return ComputeOrder(cl, cl->order, Sub); } static void FlushPrecedencesOnSubclasses(XOTclClass *cl) { XOTclClasses *pc; XOTclClassListFree(cl->order); cl->order = NULL; pc = ComputeOrder(cl, cl->order, Sub); /* * ordering doesn't matter here - we're just using toposort * to find all lower classes so we can flush their caches */ if (pc) pc = pc->nextPtr; for (; pc; pc = pc->nextPtr) { XOTclClassListFree(pc->cl->order); pc->cl->order = NULL; } XOTclClassListFree(cl->order); cl->order = NULL; } static void AddInstance(XOTclObject *obj, XOTclClass *cl) { obj->cl = cl; if (cl) { int nw; (void) Tcl_CreateHashEntry(&cl->instances, (char *)obj, &nw); } } static int RemoveInstance(XOTclObject *obj, XOTclClass *cl) { if (cl) { Tcl_HashEntry *hPtr = XOTcl_FindHashEntry(&cl->instances, (char *)obj); if (hPtr) { Tcl_DeleteHashEntry(hPtr); return 1; } } return 0; } /* * superclass/subclass list maintenance */ static void AS(XOTclClass *cl, XOTclClass *s, XOTclClasses **sl) { register XOTclClasses *l = *sl; while (l && l->cl != s) l = l->nextPtr; if (!l) { XOTclClasses *sc = NEW(XOTclClasses); sc->cl = s; sc->nextPtr = *sl; *sl = sc; } } static void AddSuper(XOTclClass *cl, XOTclClass *super) { if (cl && super) { /* * keep corresponding sub in step with super */ AS(cl, super, &cl->super); AS(super, cl, &super->sub); } } static int RemoveSuper1(XOTclClass *cl, XOTclClass *s, XOTclClasses **sl) { XOTclClasses *l = *sl; if (!l) return 0; if (l->cl == s) { *sl = l->nextPtr; FREE(XOTclClasses, l); return 1; } while (l->nextPtr && l->nextPtr->cl != s) l = l->nextPtr; if (l->nextPtr) { XOTclClasses *n = l->nextPtr->nextPtr; FREE(XOTclClasses, l->nextPtr); l->nextPtr = n; return 1; } return 0; } static int RemoveSuper(XOTclClass *cl, XOTclClass *super) { /* * keep corresponding sub in step with super */ int sp = RemoveSuper1(cl, super, &cl->super); int sb = RemoveSuper1(super, cl, &super->sub); return sp && sb; } /* * internal type checking */ extern XOTcl_Class* XOTclIsClass(Tcl_Interp *interp, ClientData clientData) { if (clientData && XOTclObjectIsClass((XOTclObject *)clientData)) return (XOTcl_Class*) clientData; return 0; } /* * methods lookup */ static int CmdIsProc(Tcl_Command cmd) { /* In 8.6: TclIsProc((Command*)cmd) is not equiv to the definition below */ return (Tcl_Command_objProc(cmd) == TclObjInterpProc); } static Proc *GetTclProcFromCommand(Tcl_Command cmd) { if (cmd) { Tcl_ObjCmdProc *proc = Tcl_Command_objProc(cmd); if (proc == TclObjInterpProc) return (Proc*) Tcl_Command_objClientData(cmd); } return NULL; } XOTCLINLINE static Tcl_Command FindMethod(Tcl_Namespace *nsPtr, CONST char *methodName) { register Tcl_HashEntry *entryPtr; if ((entryPtr = XOTcl_FindHashEntry(Tcl_Namespace_cmdTable(nsPtr), methodName))) { return (Tcl_Command) Tcl_GetHashValue(entryPtr); } /*fprintf(stderr, "find %s in %p returns %p\n", methodName, cmdTable, cmd);*/ return NULL; } static Proc * FindProcMethod(Tcl_Namespace *nsPtr, char *methodName) { return GetTclProcFromCommand(FindMethod(nsPtr, methodName)); } static XOTclClass* SearchPLMethod(register XOTclClasses *pl, CONST char *methodName, Tcl_Command *cmd) { /* Search the precedence list (class hierarchy) */ #if 1 for (; pl; pl = pl->nextPtr) { register Tcl_HashEntry *entryPtr = XOTcl_FindHashEntry(Tcl_Namespace_cmdTable(pl->cl->nsPtr), methodName); if (entryPtr) { *cmd = (Tcl_Command) Tcl_GetHashValue(entryPtr); return pl->cl; } } #else for (; pl; pl = pl->nextPtr) { if ((*cmd = FindMethod(pl->cl->nsPtr, methodName))) { return pl->cl; } } #endif return NULL; } static XOTclClass* SearchCMethod(XOTclClass *cl, CONST char *nm, Tcl_Command *cmd) { assert(cl); return SearchPLMethod(ComputeOrder(cl, cl->order, Super), nm, cmd); } /* * Find a method for a given object in the precedence path */ static Tcl_Command ObjectFindMethod(Tcl_Interp *interp, XOTclObject *obj, CONST char *name, XOTclClass **pcl) { Tcl_Command cmd = NULL; if (!(obj->flags & XOTCL_MIXIN_ORDER_VALID)) MixinComputeDefined(interp, obj); if (obj->flags & XOTCL_MIXIN_ORDER_DEFINED_AND_VALID) { XOTclCmdList *mixinList; for (mixinList = obj->mixinOrder; mixinList; mixinList = mixinList->nextPtr) { XOTclClass *mcl = XOTclpGetClass(interp, (char *)Tcl_GetCommandName(interp, mixinList->cmdPtr)); if (mcl && (*pcl = SearchCMethod(mcl, name, &cmd))) { break; } } } if (!cmd && obj->nsPtr) { cmd = FindMethod(obj->nsPtr, name); } if (!cmd && obj->cl) *pcl = SearchCMethod(obj->cl, name, &cmd); return cmd; } static int callDestroyMethod(Tcl_Interp *interp, XOTclObject *obj, int flags) { int result; /* don't call destroy after exit handler started physical destruction */ if (RUNTIME_STATE(interp)->exitHandlerDestroyRound == XOTCL_EXITHANDLER_ON_PHYSICAL_DESTROY) return TCL_OK; /*fprintf(stderr, " callDestroy obj %p flags %.6x %d active %d\n", obj, obj->flags, RUNTIME_STATE(interp)->callDestroy, obj->activationCount);*/ if (obj->flags & XOTCL_DESTROY_CALLED) return TCL_OK; PRINTOBJ("callDestroy", obj); /* flag, that destroy was called and invoke the method */ obj->flags |= XOTCL_DESTROY_CALLED; result = callMethod(obj, interp, XOTclGlobalObjects[XOTE_DESTROY], 2, 0, flags); if (result != TCL_OK) { static char cmd[] = "puts stderr \"[self]: Error in method destroy\n\ $::errorCode $::errorInfo\""; Tcl_EvalEx(interp, cmd, -1, 0); if (++RUNTIME_STATE(interp)->errorCount > 20) Tcl_Panic("too many destroy errors occured. Endless loop?", NULL); } else { if (RUNTIME_STATE(interp)->errorCount > 0) RUNTIME_STATE(interp)->errorCount--; } #ifdef OBJDELETION_TRACE fprintf(stderr, "callDestroyMethod for %p exit\n", obj); #endif return result; } /* * conditional memory allocations of optional storage */ extern XOTclObjectOpt * XOTclRequireObjectOpt(XOTclObject *obj) { if (!obj->opt) { obj->opt = NEW(XOTclObjectOpt); memset(obj->opt, 0, sizeof(XOTclObjectOpt)); } return obj->opt; } extern XOTclClassOpt* XOTclRequireClassOpt(XOTclClass *cl) { assert(cl); if (!cl->opt) { cl->opt = NEW(XOTclClassOpt); memset(cl->opt, 0, sizeof(XOTclClassOpt)); if (cl->object.flags & XOTCL_IS_CLASS) { cl->opt->id = cl->object.id; /* probably a temporary solution */ } } return cl->opt; } static Tcl_Namespace* NSGetFreshNamespace(Tcl_Interp *interp, ClientData clientData, char *name, int create); static void makeObjNamespace(Tcl_Interp *interp, XOTclObject *obj) { #ifdef NAMESPACE_TRACE fprintf(stderr, "+++ Make Namespace for %s\n", objectName(obj)); #endif if (!obj->nsPtr) { Tcl_Namespace *nsPtr; char *cmdName = objectName(obj); obj->nsPtr = NSGetFreshNamespace(interp, (ClientData)obj, cmdName, 1); if (!obj->nsPtr) Tcl_Panic("makeObjNamespace: Unable to make namespace", NULL); nsPtr = obj->nsPtr; /* * Copy all obj variables to the newly created namespace */ if (obj->varTable) { Tcl_HashSearch search; Tcl_HashEntry *hPtr; TclVarHashTable *varTable = Tcl_Namespace_varTable(nsPtr); Tcl_HashTable *varHashTable = VarHashTable(varTable); Tcl_HashTable *objHashTable = VarHashTable(obj->varTable); *varHashTable = *objHashTable; /* copy the table */ if (objHashTable->buckets == objHashTable->staticBuckets) { varHashTable->buckets = varHashTable->staticBuckets; } for (hPtr = Tcl_FirstHashEntry(varHashTable, &search); hPtr; hPtr = Tcl_NextHashEntry(&search)) { #if defined(PRE85) Var *varPtr; # if FORWARD_COMPATIBLE if (!forwardCompatibleMode) { varPtr = (Var *) Tcl_GetHashValue(hPtr); varPtr->nsPtr = (Namespace *)nsPtr; } # else varPtr = (Var *) Tcl_GetHashValue(hPtr); varPtr->nsPtr = (Namespace *)nsPtr; # endif #endif hPtr->tablePtr = varHashTable; } ckfree((char *) obj->varTable); obj->varTable = NULL; } } } static Tcl_Var CompiledLocalsLookup(CallFrame *varFramePtr, CONST char *varName) { int i, localCt = varFramePtr->numCompiledLocals; Tcl_Obj **objPtrPtr = &varFramePtr->localCachePtr->varName0; /*fprintf(stderr, ".. search #local vars %d\n", localCt);*/ for (i=0 ; icompiledLocals[i]; } } } return NULL; } /* typedef int (Tcl_ResolveVarProc) _ANSI_ARGS_(( * Tcl_Interp *interp, CONST char * name, Tcl_Namespace *context, * int flags, Tcl_Var *rPtr)); */ static int NsDotVarResolver(Tcl_Interp *interp, CONST char *varName, Tcl_Namespace *nsPtr, int flags, Tcl_Var *varPtr) { Tcl_CallFrame *varFramePtr; int new, frameFlags; char firstChar, secondChar; Tcl_Obj *key; Var *newVar; /*fprintf(stderr, "varResolver '%s' flags %.6x\n", varName, flags);*/ /* Case 1: The variable is to be resolved in global scope, proceed in * resolver chain (i.e. return TCL_CONTINUE) */ if (flags & TCL_GLOBAL_ONLY) { /*fprintf(stderr, "global-scoped lookup for var '%s' in NS '%s'\n", varName, nsPtr->fullName);*/ return TCL_CONTINUE; } /* Case 2: The lookup happens in a proc frame (lookup in compiled * locals and hash table vars). We are not interested to handle * these cases here, so proceed in resolver chain. */ varFramePtr = (Tcl_CallFrame *)Tcl_Interp_varFramePtr(interp); assert(varFramePtr); frameFlags = Tcl_CallFrame_isProcCallFrame(varFramePtr); #if defined (VAR_RESOLVER_TRACE) fprintf(stderr, "NsDotVarResolver '%s' frame flags %.6x\n", varName, Tcl_CallFrame_isProcCallFrame(varFramePtr)); #endif if (frameFlags & FRAME_IS_PROC) { #if defined (VAR_RESOLVER_TRACE) fprintf(stderr, "...... forwarding to next resolver\n"); #endif /*fprintf(stderr, "proc-scoped var '%s' assumed, frame %p flags %.6x\n", name, varFramePtr, Tcl_CallFrame_isProcCallFrame(varFramePtr));*/ return TCL_CONTINUE; } firstChar = *varName; secondChar = *(varName+1); if ((frameFlags & (FRAME_IS_XOTCL_CMETHOD|FRAME_IS_XOTCL_OBJECT)) && #if USE_DOT firstChar == '.' #endif #if USE_COLON firstChar == ':' && secondChar != ':' #endif ) { /* * Case 3: we are in an XOTcl frame and the variable name starts with a "." * We skip the dot, but stay in the resolver. */ varName ++; } else if ((firstChar == ':' && secondChar == ':') || NSTail(varName) != varName) { /* * Case 4: Check for absolutely/relatively qualified variable names, * i.e. make sure that the variable name does not contain any * namespace qualifiers. Proceed with a TCL_CONTINUE, otherwise. */ return TCL_CONTINUE; } /* * Does the variable exist in the per-object namespace? */ *varPtr = (Tcl_Var)LookupVarFromTable(Tcl_Namespace_varTable(nsPtr), varName, NULL); if (*varPtr == NULL) { /* We failed to find the variable so far, therefore we create it * in this namespace. Note that the cases (1), (2) and (4) * TCL_CONTINUE care for variable creation if necessary. */ if ( #if USE_DOT firstChar != '.' #endif #if USE_COLON firstChar != ':' #endif && (frameFlags & FRAME_IS_XOTCL_CMETHOD)) { fprintf(stderr, ".... refuse to create var %s\n", varName); return TCL_CONTINUE; } key = Tcl_NewStringObj(varName, -1); INCR_REF_COUNT(key); newVar = VarHashCreateVar(Tcl_Namespace_varTable(nsPtr), key, &new); DECR_REF_COUNT(key); #if defined(PRE85) # if FORWARD_COMPATIBLE if (!forwardCompatibleMode) { newVar->nsPtr = (Namespace *)ns; } # else newVar->nsPtr = (Namespace *)ns; # endif #endif *varPtr = (Tcl_Var)newVar; } return *varPtr ? TCL_OK : TCL_ERROR; } #if 0 static int NsDotCmdResolver(Tcl_Interp *interp, CONST char *cmdName, Tcl_Namespace *nsPtr, int flags, Tcl_Command *cmdPtr) { fprintf(stderr, "NsDotCmdResolver cmdName %s flags %.6x\n",cmdName,flags); return TCL_CONTINUE; } #endif #if defined(USE_COMPILED_VAR_RESOLVER) typedef struct xotclResolvedVarInfo { Tcl_ResolvedVarInfo vInfo; /* This must be the first element. */ XOTclObject *lastObj; Tcl_Var var; Tcl_Obj *nameObj; char buffer[64]; /* for now */ } xotclResolvedVarInfo; static void HashVarFree(Tcl_Var var) { /*fprintf(stderr,"#### refcount %d\n", VarHashRefCount(var));*/ if (VarHashRefCount(var) == 1) { /*fprintf(stderr,"#### free %p\n", var);*/ ckfree((char *) var); } else { VarHashRefCount(var)--; } } static Tcl_Var CompiledDotVarFetch(Tcl_Interp *interp, Tcl_ResolvedVarInfo *vinfoPtr) { xotclResolvedVarInfo *resVarInfo = (xotclResolvedVarInfo *)vinfoPtr; XOTclCallStackContent *cscPtr = CallStackGetFrame(interp, NULL); XOTclObject *obj = cscPtr ? cscPtr->self : NULL; TclVarHashTable *varTablePtr; Tcl_Var var = resVarInfo->var; int new, flags = var ? ((Var*)var)->flags : 0; #if defined(VAR_RESOLVER_TRACE) fprintf(stderr,"CompiledDotVarFetch var '%s' var %p flags = %.4x dead? %.4x\n", ObjStr(resVarInfo->nameObj), var, flags, flags&VAR_DEAD_HASH); #endif /* * We cache lookups based on obj; we have to care about cases, where * variables are deleted in recreates or on single deletes. In these * cases, the var flags are reset. */ if (obj == resVarInfo->lastObj && ((flags & VAR_DEAD_HASH)) == 0) { #if defined(VAR_RESOLVER_TRACE) fprintf(stderr, ".... cached var '%s' var %p flags = %.4x\n", ObjStr(resVarInfo->nameObj), var, flags); #endif return var; } if (var) { /* * We have already a variable, which is not valid anymore. Clean * it up. */ HashVarFree(var); } varTablePtr = obj->nsPtr ? Tcl_Namespace_varTable(obj->nsPtr) : obj->varTable; if (varTablePtr == NULL && obj->varTable == NULL) { /* * The variable table does not exist. This seems to be is the * first access to a variable on this object. We create the and * initialize the variable hash table and update the object */ varTablePtr = obj->varTable = VarHashTableCreate(); fprintf(stderr, "+++ create varTable in CompiledDotVarFetch\n"); } resVarInfo->lastObj = obj; resVarInfo->var = var = (Tcl_Var) VarHashCreateVar(varTablePtr, resVarInfo->nameObj, &new); /* * Increment the reference counter to avoid ckfree() of the variable * in Tcl's FreeVarEntry(); for cleanup, we provide our own * HashVarFree(); */ VarHashRefCount(var)++; #if defined(VAR_RESOLVER_TRACE) { Var *v = (Var*)(resVarInfo->var); fprintf(stderr, ".... looked up var %s (%s) var %p flags = %.6x\n", resVarInfo->buffer, ObjStr(resVarInfo->nameObj), v, v->flags); } #endif return var; } void CompiledDotVarFree(Tcl_ResolvedVarInfo *vinfoPtr) { xotclResolvedVarInfo *resVarInfo = (xotclResolvedVarInfo *)vinfoPtr; DECR_REF_COUNT(resVarInfo->nameObj); if (resVarInfo->var) {HashVarFree(resVarInfo->var);} ckfree((char *) vinfoPtr); } #if USE_DOT #define FOR_RESOLVER(ptr) (*(ptr) == '.') #endif #if USE_COLON #define FOR_RESOLVER(ptr) (*(ptr) == ':' && *(ptr+1) != ':') #endif int InterpCompiledDotVarResolver(Tcl_Interp *interp, CONST84 char *name, int length, Tcl_Namespace *context, Tcl_ResolvedVarInfo **rPtr) { /* getting the self object is a weak protection against handling of wrong vars */ XOTclObject *obj = GetSelfObj(interp); #if defined(VAR_RESOLVER_TRACE) fprintf(stderr, "compiled var resolver for %s, obj %p\n", name, obj); #endif if (obj && FOR_RESOLVER(name)) { xotclResolvedVarInfo *vInfoPtr = (xotclResolvedVarInfo *) ckalloc(sizeof(xotclResolvedVarInfo)); vInfoPtr->vInfo.fetchProc = CompiledDotVarFetch; vInfoPtr->vInfo.deleteProc = CompiledDotVarFree; /* if NULL, tcl does a ckfree on proc clean up */ vInfoPtr->lastObj = NULL; vInfoPtr->var = NULL; memcpy(vInfoPtr->buffer, name+1, length-1); vInfoPtr->nameObj = Tcl_NewStringObj(name+1, length-1); INCR_REF_COUNT(vInfoPtr->nameObj); vInfoPtr->buffer[length-1] = 0; *rPtr = (Tcl_ResolvedVarInfo *)vInfoPtr; return TCL_OK; } return TCL_CONTINUE; } static int InterpDotCmdResolver(Tcl_Interp *interp, CONST char *cmdName, Tcl_Namespace *nsPtr, int flags, Tcl_Command *cmdPtr) { CallFrame *varFramePtr; int frameFlags; if (!FOR_RESOLVER(cmdName) || flags & TCL_GLOBAL_ONLY) { /* ordinary names and global lookups are not for us */ return TCL_CONTINUE; } varFramePtr = Tcl_Interp_varFramePtr(interp); frameFlags = Tcl_CallFrame_isProcCallFrame(varFramePtr); /* skip over a nonproc frame, in case Tcl stacks it */ if (frameFlags == 0 && Tcl_CallFrame_callerPtr(varFramePtr)) { varFramePtr = (CallFrame *)Tcl_CallFrame_callerPtr(varFramePtr); frameFlags = Tcl_CallFrame_isProcCallFrame(varFramePtr); #if defined(DOT_CMD_RESOLVER_TRACE) fprintf(stderr, "InterpDotCmdResolver uses parent frame\n"); #endif } #if defined(DOT_CMD_RESOLVER_TRACE) fprintf(stderr, "InterpDotCmdResolver cmdName %s flags %.6x, frame flags %.6x\n",cmdName, flags, Tcl_CallFrame_isProcCallFrame(varFramePtr)); #endif if (frameFlags & (FRAME_IS_XOTCL_METHOD|FRAME_IS_XOTCL_OBJECT|FRAME_IS_XOTCL_CMETHOD )) { #if defined(DOT_CMD_RESOLVER_TRACE) fprintf(stderr, " ... call dotCmd for %s\n", cmdName); #endif if (*(cmdName+1) == '.') { /* the command name starts with ".." */ Tcl_Command cmd = Tcl_FindCommand(interp, cmdName+1, NULL, TCL_GLOBAL_ONLY); if (cmd) { fprintf(stderr, " we found a CMD for %s\n", cmdName+1); *cmdPtr = RUNTIME_STATE(interp)->dotDotCmd; return TCL_OK; } else { fprintf(stderr, " we found NO CMD for %s\n", cmdName+1); } } /* * We have a cmd starting with ".", we are in an xotcl frame, so * forward to the dotCmd. */ *cmdPtr = RUNTIME_STATE(interp)->dotCmd; return TCL_OK; } #if defined(DOT_CMD_RESOLVER_TRACE) fprintf(stderr, " ... not found %s\n", cmdName); tcl85showStack(interp); #endif return TCL_CONTINUE; } static int InterpDotVarResolver(Tcl_Interp *interp, CONST char *varName, Tcl_Namespace *nsPtr, int flags, Tcl_Var *varPtr) { int new, frameFlags; CallFrame *varFramePtr; TclVarHashTable *varTablePtr; XOTclObject *obj; Tcl_Var var; /*fprintf(stderr, "InterpDotVarResolver '%s' flags %.6x\n", varName, flags);*/ if (!FOR_RESOLVER(varName) || flags & TCL_GLOBAL_ONLY) { /* ordinary names and global lookups are not for us */ return TCL_CONTINUE; } #if defined(VAR_RESOLVER_TRACE) fprintf(stderr, "InterpDotVarResolver called var=%s flags %.4x\n", varName, flags); #endif varName ++; varFramePtr = Tcl_Interp_varFramePtr(interp); frameFlags = Tcl_CallFrame_isProcCallFrame(varFramePtr); #if 0 /* This chunk is needed in the dotcmd resolver, but does not seem to be required here */ if (frameFlags == 0 && Tcl_CallFrame_callerPtr(varFramePtr)) { varFramePtr = (CallFrame *)Tcl_CallFrame_callerPtr(varFramePtr); frameFlags = Tcl_CallFrame_isProcCallFrame(varFramePtr); fprintf(stderr, " use parent frame\n"); } #endif #if defined(VAR_RESOLVER_TRACE) fprintf(stderr, " frame flags %.6x\n", frameFlags); #endif if (frameFlags & FRAME_IS_XOTCL_METHOD) { if ((*varPtr = CompiledLocalsLookup(varFramePtr, varName))) { #if defined(VAR_RESOLVER_TRACE) fprintf(stderr, ".... found local %s\n", varName); #endif return TCL_OK; } obj = ((XOTclCallStackContent *)varFramePtr->clientData)->self; } else if (frameFlags & FRAME_IS_XOTCL_CMETHOD) { obj = ((XOTclCallStackContent *)varFramePtr->clientData)->self; } else if (frameFlags & FRAME_IS_XOTCL_OBJECT) { obj = (XOTclObject *)(varFramePtr->clientData); } else { #if defined(VAR_RESOLVER_TRACE) fprintf(stderr, ".... not found %s\n", varName); #endif return TCL_CONTINUE; } /* We have an object and create the variable if not found */ assert(obj); varTablePtr = obj->nsPtr ? Tcl_Namespace_varTable(obj->nsPtr) : obj->varTable; if (varTablePtr == NULL && obj->varTable == NULL) { fprintf(stderr, "+++ create varTable in InterpDotVarResolver\n"); varTablePtr = obj->varTable = VarHashTableCreate(); } /*fprintf(stderr, "Object Var Resolver, name=%s, obj %p, nsPtr %p, varTable %p\n", varName, obj, obj->nsPtr, varTablePtr);*/ var = (Tcl_Var)LookupVarFromTable(varTablePtr, varName, NULL); if (var) { #if defined(VAR_RESOLVER_TRACE) fprintf(stderr, ".... found in hashtable %s %p\n", varName, var); #endif } else { /* We failed to find the variable, therefore we create it new */ Tcl_Obj *key = Tcl_NewStringObj(varName, -1); INCR_REF_COUNT(key); var = (Tcl_Var)VarHashCreateVar(varTablePtr, key, &new); DECR_REF_COUNT(key); #if defined(VAR_RESOLVER_TRACE) fprintf(stderr, ".... created in hashtable %s %p\n", varName, var); #endif } *varPtr = var; return TCL_OK; } #endif static Tcl_Namespace * requireObjNamespace(Tcl_Interp *interp, XOTclObject *obj) { if (!obj->nsPtr) makeObjNamespace(interp, obj); /* This puts a per-object namespace resolver into position upon * acquiring the namespace. Works for object-scoped commands/procs * and object-only ones (set, unset, ...) */ Tcl_SetNamespaceResolvers(obj->nsPtr, /*(Tcl_ResolveCmdProc*)NsDotCmdResolver*/ NULL, NsDotVarResolver, /*(Tcl_ResolveCompiledVarProc*)NsCompiledDotVarResolver*/NULL); return obj->nsPtr; } extern void XOTclRequireObjNamespace(Tcl_Interp *interp, XOTcl_Object *obj) { requireObjNamespace(interp, (XOTclObject*) obj); } /* * Namespace related commands */ static int NSDeleteCmd(Tcl_Interp *interp, Tcl_Namespace *nsPtr, CONST char *name) { /* a simple deletion would delete a global command with the same name, if the command is not existing, so we use the CmdToken */ Tcl_Command token; assert(nsPtr); if ((token = FindMethod(nsPtr, name))) { return Tcl_DeleteCommandFromToken(interp, token); } return -1; } static void CallStackDestroyObject(Tcl_Interp *interp, XOTclObject *obj); static void PrimitiveCDestroy(ClientData clientData); static void PrimitiveODestroy(ClientData clientData); static void PrimitiveDestroy(ClientData clientData); static void NSDeleteChildren(Tcl_Interp *interp, Tcl_Namespace *ns) { Tcl_HashTable *cmdTable = Tcl_Namespace_cmdTable(ns); Tcl_HashSearch hSrch; Tcl_HashEntry *hPtr; #ifdef OBJDELETION_TRACE fprintf(stderr, "NSDeleteChildren %s\n", ns->fullName); #endif Tcl_ForgetImport(interp, ns, "*"); /* don't destroy namespace imported objects */ for (hPtr = Tcl_FirstHashEntry(cmdTable, &hSrch); hPtr; hPtr = Tcl_NextHashEntry(&hSrch)) { Tcl_Command cmd = (Tcl_Command)Tcl_GetHashValue(hPtr); if (!Tcl_Command_cmdEpoch(cmd)) { char *oname = Tcl_GetHashKey(cmdTable, hPtr); Tcl_DString name; XOTclObject *obj; /*fprintf(stderr, " ... child %s\n", oname);*/ ALLOC_NAME_NS(&name, ns->fullName, oname); obj = XOTclpGetObject(interp, Tcl_DStringValue(&name)); if (obj) { /*fprintf(stderr, " ... obj=%s flags %.4x\n", objectName(obj), obj->flags);*/ /* in the exit handler physical destroy --> directly call destroy */ if (RUNTIME_STATE(interp)->exitHandlerDestroyRound == XOTCL_EXITHANDLER_ON_PHYSICAL_DESTROY) { PrimitiveDestroy((ClientData) obj); } else { if (obj->teardown && !(obj->flags & XOTCL_DESTROY_CALLED)) { if (callDestroyMethod(interp, obj, 0) != TCL_OK) { /* destroy method failed, but we have to remove the command anyway. */ if (obj->teardown) { CallStackDestroyObject(interp, obj); } } } } } DSTRING_FREE(&name); } } } /* * ensure that a variable exists on object varTable or nsPtr->varTable, * if necessary create it. Return Var* if successful, otherwise 0 */ static Var * NSRequireVariableOnObj(Tcl_Interp *interp, XOTclObject *obj, char *name, int flgs) { XOTcl_FrameDecls; Var *varPtr, *arrayPtr; XOTcl_PushFrameObj(interp, obj); varPtr = TclLookupVar(interp, name, 0, flgs, "obj vwait", /*createPart1*/ 1, /*createPart2*/ 0, &arrayPtr); XOTcl_PopFrameObj(interp, obj); return varPtr; } static int XOTcl_DeleteCommandFromToken(Tcl_Interp *interp, Tcl_Command cmd) { /*fprintf(stderr, "XOTcl_DeleteCommandFromToken %p\n",cmd);*/ CallStackClearCmdReferences(interp, cmd); return Tcl_DeleteCommandFromToken(interp, cmd); } /* * delete all vars & procs in a namespace */ static void NSCleanupNamespace(Tcl_Interp *interp, Tcl_Namespace *ns) { TclVarHashTable *varTable = Tcl_Namespace_varTable(ns); Tcl_HashTable *cmdTable = Tcl_Namespace_cmdTable(ns); Tcl_HashSearch hSrch; Tcl_HashEntry *hPtr; #ifdef OBJDELETION_TRACE fprintf(stderr, "NSCleanupNamespace %p %.6x varTable %p\n", ns, ((Namespace *)ns)->flags, varTable); #endif /* * Delete all variables and initialize var table again * (DeleteVars frees the vartable) */ TclDeleteVars((Interp *)interp, varTable); InitVarHashTable(varTable, (Namespace *)ns); /* * Delete all user-defined procs in the namespace */ for (hPtr = Tcl_FirstHashEntry(cmdTable, &hSrch); hPtr; hPtr = Tcl_NextHashEntry(&hSrch)) { Tcl_Command cmd = (Tcl_Command) Tcl_GetHashValue(hPtr); Tcl_ObjCmdProc *proc = Tcl_Command_objProc(cmd); XOTclObject *invokeObj = proc == XOTclObjDispatch ? (XOTclObject *)Tcl_Command_objClientData(cmd) : NULL; /* objects should not be deleted here to preseve children deletion order */ if (invokeObj && cmd != invokeObj->id) { /* * cmd is an aliased object, reduce the refcount */ /*fprintf(stderr, "NSCleanupNamespace cleanup aliased object %p\n", invokeObj);*/ XOTclCleanupObject(invokeObj); } /*fprintf(stderr, "NSCleanupNamespace calls DeleteCommandFromToken for %p flags %.6x\n", cmd,((Command *)cmd)->flags); fprintf(stderr, " nsPtr = %p\n",((Command *)cmd)->nsPtr); fprintf(stderr, " flags %.6x\n",((Namespace *)((Command *)cmd)->nsPtr)->flags);*/ XOTcl_DeleteCommandFromToken(interp, cmd); } } static void NSNamespaceDeleteProc(ClientData clientData) { /* dummy for ns identification by pointer comparison */ XOTclObject *obj = (XOTclObject*) clientData; /*fprintf(stderr, "namespacedeleteproc obj=%p ns=%p\n", clientData,obj? obj->nsPtr:NULL);*/ if (obj) { obj->nsPtr = NULL; } } #ifdef EXPERIMENTAL_CMD_RESOLVER static int NSisXOTclNamespace(Tcl_Namespace *nsPtr) { return nsPtr->deleteProc == NSNamespaceDeleteProc; } #endif void XOTcl_DeleteNamespace(Tcl_Interp *interp, Tcl_Namespace *nsPtr) { int activationCount = 0; Tcl_CallFrame *f = (Tcl_CallFrame *)Tcl_Interp_framePtr(interp); /*fprintf(stderr, " ... correcting ActivationCount for %s was %d ", nsPtr->fullName, ((Namespace *)nsPtr)->activationCount);*/ while (f) { if (f->nsPtr == nsPtr) activationCount++; f = Tcl_CallFrame_callerPtr(f); } if (((Namespace *)nsPtr)->activationCount != activationCount) { fprintf(stderr, "WE HAVE TO FIX ACTIVATIONCOUNT\n"); } Tcl_Namespace_activationCount(nsPtr) = activationCount; /*fprintf(stderr, "to %d. \n", ((Namespace *)nsPtr)->activationCount);*/ MEM_COUNT_FREE("TclNamespace", nsPtr); if (Tcl_Namespace_deleteProc(nsPtr)) { /*fprintf(stderr, "calling deteteNamespace %s\n", nsPtr->fullName);*/ Tcl_DeleteNamespace(nsPtr); } } static Tcl_Namespace* NSGetFreshNamespace(Tcl_Interp *interp, ClientData clientData, char *name, int create) { Tcl_Namespace *nsPtr = Tcl_FindNamespace(interp, name, NULL, 0); if (nsPtr) { if (nsPtr->deleteProc || nsPtr->clientData) { Tcl_Panic("Namespace '%s' exists already with delProc %p and clientData %p; Can only convert a plain Tcl namespace into an XOTcl namespace, my delete Proc %p", name, nsPtr->deleteProc, nsPtr->clientData, NSNamespaceDeleteProc); } nsPtr->clientData = clientData; nsPtr->deleteProc = (Tcl_NamespaceDeleteProc *)NSNamespaceDeleteProc; } else if (create) { nsPtr = Tcl_CreateNamespace(interp, name, clientData, (Tcl_NamespaceDeleteProc *)NSNamespaceDeleteProc); } MEM_COUNT_ALLOC("TclNamespace", nsPtr); return nsPtr; } /* * check colons for illegal object/class names */ XOTCLINLINE static int NSCheckColons(char *name, unsigned l) { register char *n = name; if (*n == '\0') return 0; /* empty name */ if (l == 0) l=strlen(name); if (*(n+l-1) == ':') return 0; /* name ends with : */ if (*n == ':' && *(n+1) != ':') return 0; /* name begins with single : */ for (; *n != '\0'; n++) { if (*n == ':' && *(n+1) == ':' && *(n+2) == ':') return 0; /* more than 2 colons in series in a name */ } return 1; } /* * check for parent namespace existance (used before commands are created) */ XOTCLINLINE static int NSCheckForParent(Tcl_Interp *interp, char *name, unsigned l, XOTclClass *cl) { register char *n = name+l; int rc = 1; /*search for last '::'*/ while ((*n != ':' || *(n-1) != ':') && n-1 > name) {n--; } if (*n == ':' && n > name && *(n-1) == ':') {n--;} if ((n-name)>0) { Tcl_DString parentNSName, *dsp = &parentNSName; char *parentName; DSTRING_INIT(dsp); Tcl_DStringAppend(dsp, name, (n-name)); parentName = Tcl_DStringValue(dsp); if (Tcl_FindNamespace(interp, parentName, (Tcl_Namespace *) NULL, TCL_GLOBAL_ONLY) == NULL) { XOTclObject *parentObj = (XOTclObject*) XOTclpGetObject(interp, parentName); if (parentObj) { /* this is for classes */ requireObjNamespace(interp, parentObj); } else { /* call unknown and try again */ Tcl_Obj *ov[3]; int result; ov[0] = DefaultSuperClass(interp, cl, cl->object.cl, 0)->object.cmdName; ov[1] = XOTclGlobalObjects[XOTE___UNKNOWN]; ov[2] = Tcl_NewStringObj(parentName, -1); INCR_REF_COUNT(ov[2]); /*fprintf(stderr, "+++ parent... calling __unknown for %s\n", ObjStr(ov[2]));*/ result = Tcl_EvalObjv(interp, 3, ov, 0); if (result == TCL_OK) { XOTclObject *parentObj = (XOTclObject*) XOTclpGetObject(interp, parentName); if (parentObj) { requireObjNamespace(interp, parentObj); } rc = (Tcl_FindNamespace(interp, parentName, (Tcl_Namespace *) NULL, TCL_GLOBAL_ONLY) != NULL); } else { rc = 0; } DECR_REF_COUNT(ov[2]); } } else { XOTclObject *parentObj = (XOTclObject*) XOTclpGetObject(interp, parentName); if (parentObj) { requireObjNamespace(interp, parentObj); } } DSTRING_FREE(dsp); } return rc; } /* * Find the "real" command belonging eg. to an XOTcl class or object. * Do not return cmds produced by Tcl_Import, but the "real" cmd * to which they point. */ XOTCLINLINE static Tcl_Command NSFindCommand(Tcl_Interp *interp, char *name, Tcl_Namespace *ns) { Tcl_Command cmd; if ((cmd = Tcl_FindCommand(interp, name, ns, 0))) { Tcl_Command importedCmd; if ((importedCmd = TclGetOriginalCommand(cmd))) cmd = importedCmd; } return cmd; } /* * C interface routines for manipulating objects and classes */ extern XOTcl_Object* XOTclGetObject(Tcl_Interp *interp, char *name) { return (XOTcl_Object*) XOTclpGetObject(interp, name); } /* * Find an object using a char *name */ static XOTclObject* XOTclpGetObject(Tcl_Interp *interp, char *name) { register Tcl_Command cmd; assert(name); /*fprintf(stderr, "XOTclpGetObject name = '%s'\n", name);*/ cmd = NSFindCommand(interp, name, NULL); /*if (cmd) { fprintf(stderr, "+++ XOTclGetObject from %s -> objProc=%p, dispatch=%p OK %d\n", name, Tcl_Command_objProc(cmd), XOTclObjDispatch, Tcl_Command_objProc(cmd) == XOTclObjDispatch); }*/ if (cmd && Tcl_Command_objProc(cmd) == XOTclObjDispatch) { /*fprintf(stderr, "XOTclpGetObject cd %p\n", Tcl_Command_objClientData(cmd));*/ return (XOTclObject*)Tcl_Command_objClientData(cmd); } return 0; } /* * Find a class using a char *name */ extern XOTcl_Class* XOTclGetClass(Tcl_Interp *interp, char *name) { return (XOTcl_Class*)XOTclpGetClass(interp, name); } static XOTclClass* XOTclpGetClass(Tcl_Interp *interp, char *name) { XOTclObject *obj = XOTclpGetObject(interp, name); return (obj && XOTclObjectIsClass(obj)) ? (XOTclClass*)obj : NULL; } static int CanRedefineCmd(Tcl_Interp *interp, Tcl_Namespace *nsPtr, XOTclObject *obj, char *methodName) { int result, ok; Tcl_Command cmd = FindMethod(nsPtr, methodName); ok = cmd ? (Tcl_Command_flags(cmd) & XOTCL_CMD_REDEFINE_PROTECTED_METHOD) == 0 : 1; if (ok) { result = TCL_OK; } else { result = XOTclVarErrMsg(interp, "Method '", methodName, "' of ", objectName(obj), " can not be overwritten. Derive e.g. a ", "sub-class!", (char *) NULL); } return result; } int XOTclAddObjectMethod(Tcl_Interp *interp, XOTcl_Object *object, CONST char *methodName, Tcl_ObjCmdProc *proc, ClientData clientData, Tcl_CmdDeleteProc *dp, int flags) { XOTclObject *obj = (XOTclObject *)object; Tcl_DString newCmdName, *dsPtr = &newCmdName; Tcl_Namespace *ns = requireObjNamespace(interp, obj); Tcl_Command newCmd; int result; /* Check, if we are allowed to redefine the method */ result = CanRedefineCmd(interp, obj->nsPtr, obj, (char*)methodName); if (result != TCL_OK) { return result; } /* delete an alias definition, if it exists */ AliasDelete(interp, obj->cmdName, methodName, 1); ALLOC_NAME_NS(dsPtr, ns->fullName, methodName); newCmd = Tcl_CreateObjCommand(interp, Tcl_DStringValue(dsPtr), proc, clientData, dp); if (flags) { ((Command *) newCmd)->flags |= flags; } DSTRING_FREE(dsPtr); return TCL_OK; } int XOTclAddClassMethod(Tcl_Interp *interp, XOTcl_Class *class, CONST char *methodName, Tcl_ObjCmdProc *proc, ClientData clientData, Tcl_CmdDeleteProc *dp, int flags) { XOTclClass *cl = (XOTclClass *)class; Tcl_DString newCmdName, *dsPtr = &newCmdName; Tcl_Command newCmd; int result; /* Check, if we are allowed to redefine the method */ result = CanRedefineCmd(interp, cl->nsPtr, &cl->object, (char*)methodName); if (result != TCL_OK) { return result; } /* delete an alias definition, if it exists */ AliasDelete(interp, class->object.cmdName, methodName, 0); ALLOC_NAME_NS(dsPtr, cl->nsPtr->fullName, methodName); newCmd = Tcl_CreateObjCommand(interp, Tcl_DStringValue(dsPtr), proc, clientData, dp); if (flags) { ((Command *) newCmd)->flags |= flags; } DSTRING_FREE(dsPtr); return TCL_OK; } /* * Generic Tcl_Obj List */ static void TclObjListFreeList(XOTclTclObjList *list) { XOTclTclObjList *del; while (list) { del = list; list = list->nextPtr; DECR_REF_COUNT(del->content); FREE(XOTclTclObjList, del); } } static Tcl_Obj * TclObjListNewElement(XOTclTclObjList **list, Tcl_Obj *ov) { XOTclTclObjList *elt = NEW(XOTclTclObjList); INCR_REF_COUNT(ov); elt->content = ov; elt->nextPtr = *list; *list = elt; return ov; } /* * Autonaming */ static Tcl_Obj * AutonameIncr(Tcl_Interp *interp, Tcl_Obj *name, XOTclObject *obj, int instanceOpt, int resetOpt) { int valueLength, mustCopy = 1, format = 0; char *valueString, *c; Tcl_Obj *valueObject, *result = NULL, *savedResult = NULL; int flgs = TCL_LEAVE_ERR_MSG; XOTcl_FrameDecls; XOTcl_PushFrameObj(interp, obj); if (obj->nsPtr) flgs |= TCL_NAMESPACE_ONLY; valueObject = Tcl_ObjGetVar2(interp, XOTclGlobalObjects[XOTE_AUTONAMES], name, flgs); if (valueObject) { long autoname_counter; /* should probably do an overflow check here */ Tcl_GetLongFromObj(interp, valueObject, &autoname_counter); autoname_counter++; if (Tcl_IsShared(valueObject)) { valueObject = Tcl_DuplicateObj(valueObject); } Tcl_SetLongObj(valueObject, autoname_counter); } Tcl_ObjSetVar2(interp, XOTclGlobalObjects[XOTE_AUTONAMES], name, valueObject, flgs); if (resetOpt) { if (valueObject) { /* we have an entry */ Tcl_UnsetVar2(interp, XOTclGlobalStrings[XOTE_AUTONAMES], ObjStr(name), flgs); } result = XOTclGlobalObjects[XOTE_EMPTY]; INCR_REF_COUNT(result); } else { if (valueObject == NULL) { valueObject = Tcl_ObjSetVar2(interp, XOTclGlobalObjects[XOTE_AUTONAMES], name, XOTclGlobalObjects[XOTE_ONE], flgs); } if (instanceOpt) { char buffer[1], firstChar, *nextChars; nextChars = ObjStr(name); firstChar = *(nextChars ++); if (isupper((int)firstChar)) { buffer[0] = tolower((int)firstChar); result = Tcl_NewStringObj(buffer, 1); INCR_REF_COUNT(result); Tcl_AppendToObj(result, nextChars, -1); mustCopy = 0; } } if (mustCopy) { result = Tcl_DuplicateObj(name); INCR_REF_COUNT(result); /* fprintf(stderr, "*** copy %p %s = %p\n", name, ObjStr(name), result); */ } /* if we find a % in the autoname -> We use Tcl_FormatObjCmd to let the autoname string be formated, like Tcl "format" command, with the value. E.g.: autoname a%06d --> a000000, a000001, a000002, ... */ for (c = ObjStr(result); *c != '\0'; c++) { if (*c == '%') { if (*(c+1) != '%') { format = 1; break; } else { /* when we find a %% we format and then append autoname, e.g. autoname a%% --> a%1, a%2, ... */ c++; } } } if (format) { ALLOC_ON_STACK(Tcl_Obj*, 3, ov); savedResult = Tcl_GetObjResult(interp); INCR_REF_COUNT(savedResult); ov[1] = result; ov[2] = valueObject; if (XOTclCallCommand(interp, XOTE_FORMAT, 3, ov) != TCL_OK) { XOTcl_PopFrameObj(interp, obj); DECR_REF_COUNT(savedResult); FREE_ON_STACK(ov); return 0; } DECR_REF_COUNT(result); result = Tcl_DuplicateObj(Tcl_GetObjResult(interp)); INCR_REF_COUNT(result); Tcl_SetObjResult(interp, savedResult); DECR_REF_COUNT(savedResult); FREE_ON_STACK(ov); } else { valueString = Tcl_GetStringFromObj(valueObject, &valueLength); Tcl_AppendToObj(result, valueString, valueLength); /*fprintf(stderr, "+++ append to obj done\n");*/ } } XOTcl_PopFrameObj(interp, obj); assert((resetOpt && result->refCount>=1) || (result->refCount == 1)); return result; } /* * XOTcl CallStack */ static void CallStackRestoreSavedFrames(Tcl_Interp *interp, callFrameContext *ctx) { if (ctx->framesSaved) { Tcl_Interp_varFramePtr(interp) = (CallFrame *)ctx->varFramePtr; /*RUNTIME_STATE(interp)->varFramePtr = ctx->varFramePtr;*/ } } XOTCLINLINE static void CallStackDoDestroy(Tcl_Interp *interp, XOTclObject *obj) { Tcl_Command oid; PRINTOBJ("CallStackDoDestroy", obj); /* Don't do anything, if a recursive DURING_DELETE is for some * reason active. */ /*fprintf(stderr, "CallStackDoDestroy %p flags %.6x cmd %p\n", obj, obj->flags, obj->id);*/ if (obj->flags & XOTCL_DURING_DELETE) { return; } /*fprintf(stderr, "CallStackDoDestroy %p flags %.6x activation %d cmd %p\n", obj, obj->flags, obj->activationCount, obj->id);*/ obj->flags |= XOTCL_DURING_DELETE; oid = obj->id; /* oid might be freed already, we can't even use (((Command*)oid)->flags & CMD_IS_DELETED) */ if (obj->teardown && oid) { /* PrimitiveDestroy() has to be before DeleteCommandFromToken(), otherwise e.g. unset traces on this object cannot be executed from Tcl. We make sure via refcounting that the object structure is kept until after DeleteCommandFromToken(). */ obj->refCount ++; PrimitiveDestroy((ClientData) obj); if (!(obj->flags & XOTCL_CMD_NOT_FOUND)) { Tcl_Obj *savedObjResult = Tcl_GetObjResult(interp); INCR_REF_COUNT(savedObjResult); /*fprintf(stderr, " before DeleteCommandFromToken %p %.6x\n", oid, ((Command*)oid)->flags);*/ Tcl_DeleteCommandFromToken(interp, oid); /* this can change the result */ /*fprintf(stderr, " after DeleteCommandFromToken %p %.6x\n", oid, ((Command*)oid)->flags);*/ Tcl_SetObjResult(interp, savedObjResult); DECR_REF_COUNT(savedObjResult); } XOTclCleanupObject(obj); } } static void CallStackDestroyObject(Tcl_Interp *interp, XOTclObject *obj) { /*fprintf(stderr, " CallStackDestroyObject %p %s activationcount %d flags %.6x\n", obj, objectName(obj), obj->activationCount, obj->flags); */ if ((obj->flags & XOTCL_DESTROY_CALLED) == 0) { int activationCount = obj->activationCount; /* if the destroy method was not called yet, do it now */ #ifdef OBJDELETION_TRACE fprintf(stderr, " CallStackDestroyObject has to callDestroyMethod %p activationCount %d\n", obj, activationCount); #endif callDestroyMethod(interp, obj, 0); /*fprintf(stderr, " CallStackDestroyObject after callDestroyMethod %p activationCount %d\n", obj, activationCount);*/ if (activationCount == 0) { /* We assume, the object is now freed. if the obj is already freed, we cannot access activation count, and we cannot call CallStackDoDestroy */ /* todo: check if this is leak; */ /*fprintf(stderr, " CallStackDestroyObject %p done\n", obj);*/ return; } } /* if the object is not referenced on the callstack anymore we have to destroy it directly, because CallStackPop won't find the object destroy */ /* fprintf(stderr, " CallStackDestroyObject check activation count of %p => %d\n", obj, obj->activationCount);*/ if (obj->activationCount == 0) { CallStackDoDestroy(interp, obj); } else { /* to prevail the deletion order call delete children now -> children destructors are called before parent's destructor */ if (obj->teardown && obj->nsPtr) { /*fprintf(stderr, " CallStackDestroyObject calls NSDeleteChildren\n");*/ NSDeleteChildren(interp, obj->nsPtr); } } /*fprintf(stderr, " CallStackDestroyObject %p final done\n", obj);*/ } /* * cmd list handling */ /* * Cmd List Add/Remove ... returns the new element */ static XOTclCmdList* CmdListAdd(XOTclCmdList **cList, Tcl_Command c, XOTclClass *clorobj, int noDuplicates) { XOTclCmdList *l = *cList, *new; /* * check for duplicates, if necessary */ if (noDuplicates) { XOTclCmdList *h = l, **end = NULL; while (h) { if (h->cmdPtr == c) return h; end = &(h->nextPtr); h = h->nextPtr; } if (end) { /* no duplicates, no need to search below, we are at the end of the list */ cList = end; l = NULL; } } /* * ok, we have no duplicates -> append "new" * to the end of the list */ new = NEW(XOTclCmdList); new->cmdPtr = c; Tcl_Command_refCount(new->cmdPtr)++; MEM_COUNT_ALLOC("command refCount", new->cmdPtr); new->clientData = NULL; new->clorobj = clorobj; new->nextPtr = NULL; if (l) { while (l->nextPtr) l = l->nextPtr; l->nextPtr = new; } else *cList = new; return new; } static void CmdListReplaceCmd(XOTclCmdList *replace, Tcl_Command cmd, XOTclClass *clorobj) { Tcl_Command del = replace->cmdPtr; replace->cmdPtr = cmd; replace->clorobj = clorobj; Tcl_Command_refCount(cmd)++; MEM_COUNT_ALLOC("command refCount", cmd); TclCleanupCommand((Command *)del); MEM_COUNT_FREE("command refCount", cmd); } #if 0 /** for debug purposes only */ static void CmdListPrint(Tcl_Interp *interp, char *title, XOTclCmdList *cmdList) { if (cmdList) fprintf(stderr, title); while (cmdList) { fprintf(stderr, " CL=%p, cmdPtr=%p %s, clorobj %p, clientData=%p\n", cmdList, cmdList->cmdPtr, in ? Tcl_GetCommandName(interp, cmdList->cmdPtr) : "", cmdList->clorobj, cmdList->clientData); cmdList = cmdList->next; } } #endif /* * physically delete an entry 'del' */ static void CmdListDeleteCmdListEntry(XOTclCmdList *del, XOTclFreeCmdListClientData *freeFct) { if (freeFct) (*freeFct)(del); MEM_COUNT_FREE("command refCount", del->cmdPtr); TclCleanupCommand((Command *)del->cmdPtr); FREE(XOTclCmdList, del); } /* * remove a command 'delCL' from a command list, but do not * free it ... returns the removed XOTclCmdList* */ static XOTclCmdList* CmdListRemoveFromList(XOTclCmdList **cmdList, XOTclCmdList *delCL) { register XOTclCmdList *c = *cmdList, *del = NULL; if (c == NULL) return NULL; if (c == delCL) { *cmdList = c->nextPtr; del = c; } else { while (c->nextPtr && c->nextPtr != delCL) { c = c->nextPtr; } if (c->nextPtr == delCL) { del = delCL; c->nextPtr = delCL->nextPtr; } } return del; } /* * remove all command pointers from a list that have a bumped epoch */ static void CmdListRemoveEpoched(XOTclCmdList **cmdList, XOTclFreeCmdListClientData *freeFct) { XOTclCmdList *f = *cmdList, *del; while (f) { if (Tcl_Command_cmdEpoch(f->cmdPtr)) { del = f; f = f->nextPtr; del = CmdListRemoveFromList(cmdList, del); CmdListDeleteCmdListEntry(del, freeFct); } else f = f->nextPtr; } } /* * delete all cmds with given context class object */ static void CmdListRemoveContextClassFromList(XOTclCmdList **cmdList, XOTclClass *clorobj, XOTclFreeCmdListClientData *freeFct) { XOTclCmdList *c, *del = NULL; /* CmdListRemoveEpoched(cmdList, freeFct); */ c = *cmdList; while (c && c->clorobj == clorobj) { del = c; *cmdList = c->nextPtr; CmdListDeleteCmdListEntry(del, freeFct); c = *cmdList; } while (c) { if (c->clorobj == clorobj) { del = c; c = *cmdList; while (c->nextPtr && c->nextPtr != del) c = c->nextPtr; if (c->nextPtr == del) c->nextPtr = del->nextPtr; CmdListDeleteCmdListEntry(del, freeFct); } c = c->nextPtr; } } /* * free the memory of a whole 'cmdList' */ static void CmdListRemoveList(XOTclCmdList **cmdList, XOTclFreeCmdListClientData *freeFct) { XOTclCmdList *del; while (*cmdList) { del = *cmdList; *cmdList = (*cmdList)->nextPtr; CmdListDeleteCmdListEntry(del, freeFct); } } /* * simple list search proc to search a list of cmds * for a command ptr */ static XOTclCmdList* CmdListFindCmdInList(Tcl_Command cmd, XOTclCmdList *l) { register XOTclCmdList *h; for (h = l; h; h = h->nextPtr) { if (h->cmdPtr == cmd) return h; } return 0; } /* * simple list search proc to search a list of cmds * for a simple Name */ static XOTclCmdList* CmdListFindNameInList(Tcl_Interp *interp, char *name, XOTclCmdList *l) { register XOTclCmdList *h; for (h = l; h; h = h->nextPtr) { CONST char *cmdName = Tcl_GetCommandName(interp, h->cmdPtr); if (cmdName[0] == name[0] && !strcmp(cmdName, name)) return h; } return 0; } /* * Assertions */ static XOTclTclObjList* AssertionNewList(Tcl_Interp *interp, Tcl_Obj *aObj) { Tcl_Obj **ov; int oc; XOTclTclObjList *last = NULL; if (Tcl_ListObjGetElements(interp, aObj, &oc, &ov) == TCL_OK) { if (oc > 0) { int i; for (i=oc-1; i>=0; i--) { TclObjListNewElement(&last, ov[i]); } } } return last; } static Tcl_Obj * AssertionList(Tcl_Interp *interp, XOTclTclObjList *alist) { Tcl_Obj *listObj = Tcl_NewListObj(0, NULL); for (; alist; alist = alist->nextPtr) { Tcl_ListObjAppendElement(interp, listObj, alist->content); } return listObj; } /* append a string of pre and post assertions to a method body */ static void AssertionAppendPrePost(Tcl_Interp *interp, Tcl_DString *dsPtr, XOTclProcAssertion *procs) { if (procs) { Tcl_Obj *preCondition = AssertionList(interp, procs->pre); Tcl_Obj *postCondition = AssertionList(interp, procs->post); INCR_REF_COUNT(preCondition); INCR_REF_COUNT(postCondition); Tcl_DStringAppendElement(dsPtr, "-precondition"); Tcl_DStringAppendElement(dsPtr, ObjStr(preCondition)); Tcl_DStringAppendElement(dsPtr, "-postcondition"); Tcl_DStringAppendElement(dsPtr, ObjStr(postCondition)); DECR_REF_COUNT(preCondition); DECR_REF_COUNT(postCondition); } } static int AssertionListCheckOption(Tcl_Interp *interp, XOTclObject *obj) { XOTclObjectOpt *opt = obj->opt; if (!opt) return TCL_OK; if (opt->checkoptions & CHECK_OBJINVAR) Tcl_AppendElement(interp, "object-invar"); if (opt->checkoptions & CHECK_CLINVAR) Tcl_AppendElement(interp, "class-invar"); if (opt->checkoptions & CHECK_PRE) Tcl_AppendElement(interp, "pre"); if (opt->checkoptions & CHECK_POST) Tcl_AppendElement(interp, "post"); return TCL_OK; } static XOTclProcAssertion* AssertionFindProcs(XOTclAssertionStore *aStore, char *name) { Tcl_HashEntry *hPtr; if (aStore == NULL) return NULL; hPtr = XOTcl_FindHashEntry(&aStore->procs, name); if (hPtr == NULL) return NULL; return (XOTclProcAssertion*) Tcl_GetHashValue(hPtr); } static void AssertionRemoveProc(XOTclAssertionStore *aStore, CONST char *name) { Tcl_HashEntry *hPtr; if (aStore) { hPtr = XOTcl_FindHashEntry(&aStore->procs, name); if (hPtr) { XOTclProcAssertion *procAss = (XOTclProcAssertion*) Tcl_GetHashValue(hPtr); TclObjListFreeList(procAss->pre); TclObjListFreeList(procAss->post); FREE(XOTclProcAssertion, procAss); Tcl_DeleteHashEntry(hPtr); } } } static void AssertionAddProc(Tcl_Interp *interp, char *name, XOTclAssertionStore *aStore, Tcl_Obj *pre, Tcl_Obj *post) { int nw = 0; Tcl_HashEntry *hPtr = NULL; XOTclProcAssertion *procs = NEW(XOTclProcAssertion); AssertionRemoveProc(aStore, name); procs->pre = AssertionNewList(interp, pre); procs->post = AssertionNewList(interp, post); hPtr = Tcl_CreateHashEntry(&aStore->procs, name, &nw); if (nw) Tcl_SetHashValue(hPtr, (ClientData)procs); } static XOTclAssertionStore* AssertionCreateStore() { XOTclAssertionStore *aStore = NEW(XOTclAssertionStore); aStore->invariants = NULL; Tcl_InitHashTable(&aStore->procs, TCL_STRING_KEYS); MEM_COUNT_ALLOC("Tcl_InitHashTable", &aStore->procs); return aStore; } static void AssertionRemoveStore(XOTclAssertionStore *aStore) { Tcl_HashSearch hSrch; Tcl_HashEntry *hPtr; if (aStore) { for (hPtr = Tcl_FirstHashEntry(&aStore->procs, &hSrch); hPtr; hPtr = Tcl_FirstHashEntry(&aStore->procs, &hSrch)) { /* * AssertionRemoveProc calls Tcl_DeleteHashEntry(hPtr), thus * we get the FirstHashEntry afterwards again to proceed */ AssertionRemoveProc(aStore, Tcl_GetHashKey(&aStore->procs, hPtr)); } Tcl_DeleteHashTable(&aStore->procs); MEM_COUNT_FREE("Tcl_InitHashTable", &aStore->procs); TclObjListFreeList(aStore->invariants); FREE(XOTclAssertionStore, aStore); } } /* * check a given condition in the current callframe's scope * it's the responsiblity of the caller to push the intended callframe */ static int checkConditionInScope(Tcl_Interp *interp, Tcl_Obj *condition) { int result, success; Tcl_Obj *ov[2] = {NULL, condition}; INCR_REF_COUNT(condition); result = XOTcl_ExprObjCmd(NULL, interp, 2, ov); DECR_REF_COUNT(condition); if (result == TCL_OK) { result = Tcl_GetBooleanFromObj(interp, Tcl_GetObjResult(interp), &success); if (result == TCL_OK && success == 0) result = XOTCL_CHECK_FAILED; } return result; } static int AssertionCheckList(Tcl_Interp *interp, XOTclObject *obj, XOTclTclObjList *alist, char *methodName) { XOTclTclObjList *checkFailed = NULL; Tcl_Obj *savedObjResult = Tcl_GetObjResult(interp); int savedCheckoptions, acResult = TCL_OK; /* * no obj->opt -> checkoption == CHECK_NONE */ if (!obj->opt) return TCL_OK; /* we do not check assertion modifying methods, otherwise we can not react in catch on a runtime assertion check failure */ #if 1 /* TODO: the following check operations is xotcl1 legacy and is not generic. it should be replaced by another methodproperty. Most of the is*String() definition are then obsolete and should be deleted from xotclInt.h as well. */ if (isCheckString(methodName)) { return TCL_OK; } #endif INCR_REF_COUNT(savedObjResult); Tcl_ResetResult(interp); while (alist) { /* Eval instead of IfObjCmd => the substitutions in the conditions will be done by Tcl */ char *assStr = ObjStr(alist->content), *c = assStr; int comment = 0; for (; c && *c != '\0'; c++) { if (*c == '#') { comment = 1; break; } } if (!comment) { XOTcl_FrameDecls; XOTcl_PushFrameObj(interp, obj); #if !defined(TCL85STACK) CallStackPush(interp, obj, 0, 0, XOTCL_CSC_TYPE_PLAIN); #endif /* don't check assertion during assertion check */ savedCheckoptions = obj->opt->checkoptions; obj->opt->checkoptions = CHECK_NONE; /* fprintf(stderr, "Checking Assertion %s ", assStr); */ /* * now check the assertion in the pushed callframe's scope */ acResult = checkConditionInScope(interp, alist->content); if (acResult != TCL_OK) checkFailed = alist; obj->opt->checkoptions = savedCheckoptions; /* fprintf(stderr, "...%s\n", checkFailed ? "failed" : "ok"); */ #if !defined(TCL85STACK) CallStackPop(interp, NULL); #endif XOTcl_PopFrameObj(interp, obj); } if (checkFailed) break; alist = alist->nextPtr; } if (checkFailed) { DECR_REF_COUNT(savedObjResult); if (acResult == TCL_ERROR) { Tcl_Obj *sr = Tcl_GetObjResult(interp); INCR_REF_COUNT(sr); XOTclVarErrMsg(interp, "Error in Assertion: {", ObjStr(checkFailed->content), "} in proc '", methodName, "'\n\n", ObjStr(sr), (char *) NULL); DECR_REF_COUNT(sr); return TCL_ERROR; } return XOTclVarErrMsg(interp, "Assertion failed check: {", ObjStr(checkFailed->content), "} in proc '", methodName, "'", (char *) NULL); } Tcl_SetObjResult(interp, savedObjResult); DECR_REF_COUNT(savedObjResult); return TCL_OK; } static int AssertionCheckInvars(Tcl_Interp *interp, XOTclObject *obj, char *method, CheckOptions checkoptions) { int result = TCL_OK; if (checkoptions & CHECK_OBJINVAR && obj->opt->assertions) { result = AssertionCheckList(interp, obj, obj->opt->assertions->invariants, method); } if (result != TCL_ERROR && checkoptions & CHECK_CLINVAR) { XOTclClasses *clPtr; clPtr = ComputeOrder(obj->cl, obj->cl->order, Super); while (clPtr && result != TCL_ERROR) { XOTclAssertionStore *aStore = (clPtr->cl->opt) ? clPtr->cl->opt->assertions : 0; if (aStore) { result = AssertionCheckList(interp, obj, aStore->invariants, method); } clPtr = clPtr->nextPtr; } } return result; } static int AssertionCheck(Tcl_Interp *interp, XOTclObject *obj, XOTclClass *cl, char *method, int checkOption) { XOTclProcAssertion *procs; int result = TCL_OK; XOTclAssertionStore *aStore; if (cl) aStore = cl->opt ? cl->opt->assertions : 0; else aStore = obj->opt ? obj->opt->assertions : 0; assert(obj->opt); if (checkOption & obj->opt->checkoptions) { procs = AssertionFindProcs(aStore, method); if (procs) { switch (checkOption) { case CHECK_PRE: result = AssertionCheckList(interp, obj, procs->pre, method); break; case CHECK_POST: result = AssertionCheckList(interp, obj, procs->post, method); break; } } if (result != TCL_ERROR) result = AssertionCheckInvars(interp, obj, method, obj->opt->checkoptions); } return result; } static int AssertionSetCheckOptions(Tcl_Interp *interp, XOTclObject *obj, Tcl_Obj *arg) { XOTclObjectOpt *opt = XOTclRequireObjectOpt(obj); int ocArgs, i; Tcl_Obj **ovArgs; opt->checkoptions = CHECK_NONE; if (Tcl_ListObjGetElements(interp, arg, &ocArgs, &ovArgs) == TCL_OK && ocArgs > 0) { for (i = 0; i < ocArgs; i++) { char *option = ObjStr(ovArgs[i]); if (option) { switch (*option) { case 'c': if (strcmp(option, "class-invar") == 0) { opt->checkoptions |= CHECK_CLINVAR; } break; case 'o': if (strcmp(option, "object-invar") == 0) { opt->checkoptions |= CHECK_OBJINVAR; } break; case 'p': if (strcmp(option, "pre") == 0) { opt->checkoptions |= CHECK_PRE; } else if (strcmp(option, "post") == 0) { opt->checkoptions |= CHECK_POST; } break; case 'a': if (strcmp(option, "all") == 0) { opt->checkoptions |= CHECK_ALL; } break; } } } } if (opt->checkoptions == CHECK_NONE && ocArgs>0) { return XOTclVarErrMsg(interp, "Unknown check option in command '", objectName(obj), " check ", ObjStr(arg), "', valid: all pre post object-invar class-invar", (char *) NULL); } return TCL_OK; } static void AssertionSetInvariants(Tcl_Interp *interp, XOTclAssertionStore **assertions, Tcl_Obj *arg) { if (*assertions) TclObjListFreeList((*assertions)->invariants); else *assertions = AssertionCreateStore(); (*assertions)->invariants = AssertionNewList(interp, arg); } /* * Per-Object-Mixins */ /* * push a mixin stack information on this object */ static int MixinStackPush(XOTclObject *obj) { register XOTclMixinStack *h = NEW(XOTclMixinStack); h->currentCmdPtr = NULL; h->nextPtr = obj->mixinStack; obj->mixinStack = h; return 1; } /* * pop a mixin stack information on this object */ static void MixinStackPop(XOTclObject *obj) { register XOTclMixinStack *h = obj->mixinStack; obj->mixinStack = h->nextPtr; FREE(XOTclMixinStack, h); } /* * Appends XOTclClasses *containing the mixin classes and their * superclasses to 'mixinClasses' list from a given mixinList */ static void MixinComputeOrderFullList(Tcl_Interp *interp, XOTclCmdList **mixinList, XOTclClasses **mixinClasses, XOTclClasses **checkList, int level) { XOTclCmdList *m; XOTclClasses *pl, **clPtr = mixinClasses; CmdListRemoveEpoched(mixinList, GuardDel); for (m = *mixinList; m; m = m->nextPtr) { XOTclClass *mCl = XOTclGetClassFromCmdPtr(m->cmdPtr); if (mCl) { for (pl = ComputeOrder(mCl, mCl->order, Super); pl; pl = pl->nextPtr) { /*fprintf(stderr, " %s, ", ObjStr(pl->cl->object.cmdName));*/ if ((pl->cl->object.flags & XOTCL_IS_ROOT_CLASS) == 0) { XOTclClassOpt *opt = pl->cl->opt; if (opt && opt->classmixins) { /* compute transitively the (class) mixin classes of this added class */ XOTclClasses *cls; int i, found = 0; for (i=0, cls = *checkList; cls; i++, cls = cls->nextPtr) { /* fprintf(stderr, "+++ c%d: %s\n", i, className(cls->cl));*/ if (pl->cl == cls->cl) { found = 1; break; } } if (!found) { XOTclClassListAdd(checkList, pl->cl, NULL); /*fprintf(stderr, "+++ transitive %s\n", ObjStr(pl->cl->object.cmdName));*/ MixinComputeOrderFullList(interp, &opt->classmixins, mixinClasses, checkList, level+1); } } /* fprintf(stderr, "+++ add to mixinClasses %p path: %s clPtr %p\n", mixinClasses, ObjStr(pl->cl->object.cmdName), clPtr);*/ clPtr = XOTclClassListAdd(clPtr, pl->cl, m->clientData); } } } } if (level == 0 && *checkList) { XOTclClassListFree(*checkList); *checkList = NULL; } } static void MixinResetOrder(XOTclObject *obj) { /*fprintf(stderr, "removeList %s \n", objectName(obj));*/ CmdListRemoveList(&obj->mixinOrder, NULL /*GuardDel*/); obj->mixinOrder = NULL; } /* * Computes a linearized order of per-object and per-class mixins. Then * duplicates in the full list and with the class inheritance list of * 'obj' are eliminated. * The precendence rule is that the last occurence makes it into the * final list. */ static void MixinComputeOrder(Tcl_Interp *interp, XOTclObject *obj) { XOTclClasses *fullList, *checkList = NULL, *mixinClasses = NULL, *nextCl, *pl, *checker, *guardChecker; if (obj->mixinOrder) MixinResetOrder(obj); /* append per-obj mixins */ if (obj->opt) { MixinComputeOrderFullList(interp, &obj->opt->mixins, &mixinClasses, &checkList, 0); } /* append per-class mixins */ for (pl = ComputeOrder(obj->cl, obj->cl->order, Super); pl; pl = pl->nextPtr) { XOTclClassOpt *opt = pl->cl->opt; if (opt && opt->classmixins) { MixinComputeOrderFullList(interp, &opt->classmixins, &mixinClasses, &checkList, 0); } } fullList = mixinClasses; /* use no duplicates & no classes of the precedence order on the resulting list */ while (mixinClasses) { checker = nextCl = mixinClasses->nextPtr; /* fprintf(stderr, "--- checking %s\n", ObjStr(mixinClasses->cl->object.cmdName));*/ while (checker) { if (checker->cl == mixinClasses->cl) break; checker = checker->nextPtr; } /* if checker is set, it is a duplicate and ignored */ if (checker == NULL) { /* check obj->cl hierachy */ for (checker = ComputeOrder(obj->cl, obj->cl->order, Super); checker; checker = checker->nextPtr) { if (checker->cl == mixinClasses->cl) break; } /* if checker is set, it was found in the class hierarchy and it is ignored */ } if (checker == NULL) { /* add the class to the mixinOrder list */ XOTclCmdList *new; /* fprintf(stderr, "--- adding to mixinlist %s\n", ObjStr(mixinClasses->cl->object.cmdName));*/ new = CmdListAdd(&obj->mixinOrder, mixinClasses->cl->object.id, NULL, /*noDuplicates*/ 0); /* in the client data of the order list, we require the first matching guard ... scan the full list for it. */ for (guardChecker = fullList; guardChecker; guardChecker = guardChecker->nextPtr) { if (guardChecker->cl == mixinClasses->cl) { new->clientData = guardChecker->clientData; break; } } } mixinClasses = nextCl; } /* ... and free the memory of the full list */ XOTclClassListFree(fullList); /*CmdListPrint(interp, "mixin order\n", obj->mixinOrder);*/ } /* * add a mixin class to 'mixinList' by appending it */ static int MixinAdd(Tcl_Interp *interp, XOTclCmdList **mixinList, Tcl_Obj *name, XOTclClass *base) { XOTclClass *mixin; Tcl_Obj *guard = NULL; int ocName; Tcl_Obj **ovName; XOTclCmdList *new; if (Tcl_ListObjGetElements(interp, name, &ocName, &ovName) == TCL_OK && ocName > 1) { if (ocName == 3 && !strcmp(ObjStr(ovName[1]), XOTclGlobalStrings[XOTE_GUARD_OPTION])) { name = ovName[0]; guard = ovName[2]; /*fprintf(stderr, "mixinadd name = '%s', guard = '%s'\n", ObjStr(name), ObjStr(guard));*/ } /*else return XOTclVarErrMsg(interp, "mixin registration '", ObjStr(name), "' has too many elements.", (char *) NULL);*/ } if (GetClassFromObj(interp, name, &mixin, base) != TCL_OK) return XOTclErrBadVal(interp, "mixin", "a class as mixin", ObjStr(name)); new = CmdListAdd(mixinList, mixin->object.id, NULL, /*noDuplicates*/ 1); if (guard) { GuardAdd(interp, new, guard); } else { if (new->clientData) GuardDel(new); } return TCL_OK; } /* * call AppendElement for matching values */ static void AppendMatchingElement(Tcl_Interp *interp, Tcl_Obj *name, char *pattern) { char *string = ObjStr(name); if (!pattern || Tcl_StringMatch(string, pattern)) { Tcl_AppendElement(interp, string); } } /* * apply AppendMatchingElement to CmdList */ static int AppendMatchingElementsFromCmdList(Tcl_Interp *interp, XOTclCmdList *cmdl, char *pattern, XOTclObject *matchObject) { int rc = 0; for ( ; cmdl; cmdl = cmdl->nextPtr) { XOTclObject *obj = XOTclGetObjectFromCmdPtr(cmdl->cmdPtr); if (obj) { if (matchObject == obj) { return 1; } else { AppendMatchingElement(interp, obj->cmdName, pattern); } } } return rc; } /* * apply AppendMatchingElement to */ static int AppendMatchingElementsFromClasses(Tcl_Interp *interp, XOTclClasses *cls, char *pattern, XOTclObject *matchObject) { int rc = 0; for ( ; cls; cls = cls->nextPtr) { XOTclObject *obj = (XOTclObject *)cls->cl; if (obj) { if (matchObject && obj == matchObject) { /* we have a matchObject and it is identical to obj, just return true and don't continue search */ return 1; break; } else { AppendMatchingElement(interp, obj->cmdName, pattern); } } } return rc; } /* * get all instances of a class recursively into an initialized * String key hashtable */ static void getAllInstances(Tcl_Interp *interp, Tcl_HashTable *destTable, XOTclClass *startCl) { Tcl_HashTable *table = &startCl->instances; XOTclClasses *sc; Tcl_HashSearch search; Tcl_HashEntry *hPtr; for (hPtr = Tcl_FirstHashEntry(table, &search); hPtr; hPtr = Tcl_NextHashEntry(&search)) { XOTclObject *inst = (XOTclObject *)Tcl_GetHashKey(table, hPtr); int new; Tcl_CreateHashEntry(destTable, objectName(inst), &new); /* fprintf (stderr, " -- %s (%s)\n", objectName(inst), ObjStr(startCl->object.cmdName)); */ } for (sc = startCl->sub; sc; sc = sc->nextPtr) { getAllInstances(interp, destTable, sc->cl); } } /* * helper function for getAllClassMixinsOf to add classes to the * result set, flagging test for matchObject as result */ static int addToResultSet(Tcl_Interp *interp, Tcl_HashTable *destTable, XOTclObject *obj, int *new, int appendResult, char *pattern, XOTclObject *matchObject) { Tcl_CreateHashEntry(destTable, (char *)obj, new); if (*new) { if (matchObject && matchObject == obj) { return 1; } if (appendResult) { AppendMatchingElement(interp, obj->cmdName, pattern); } } return 0; } /* * helper function for getAllClassMixins to add classes with guards * to the result set, flagging test for matchObject as result */ static int addToResultSetWithGuards(Tcl_Interp *interp, Tcl_HashTable *destTable, XOTclClass *cl, ClientData clientData, int *new, int appendResult, char *pattern, XOTclObject *matchObject) { Tcl_CreateHashEntry(destTable, (char *)cl, new); if (*new) { if (appendResult) { if (!pattern || Tcl_StringMatch(className(cl), pattern)) { Tcl_Obj *l = Tcl_NewListObj(0, NULL); Tcl_Obj *g = (Tcl_Obj*) clientData; Tcl_ListObjAppendElement(interp, l, cl->object.cmdName); Tcl_ListObjAppendElement(interp, l, XOTclGlobalObjects[XOTE_GUARD_OPTION]); Tcl_ListObjAppendElement(interp, l, g); Tcl_AppendElement(interp, ObjStr(l)); DECR_REF_COUNT(l); } } if (matchObject && matchObject == (XOTclObject *)cl) { return 1; } } return 0; } /* * recursively get all per object mixins from an class and its subclasses/isClassMixinOf * into an initialized object ptr hashtable (TCL_ONE_WORD_KEYS) */ static int getAllObjectMixinsOf(Tcl_Interp *interp, Tcl_HashTable *destTable, XOTclClass *startCl, int isMixin, int appendResult, char *pattern, XOTclObject *matchObject) { int rc = 0, new = 0; XOTclClasses *sc; /*fprintf(stderr, "startCl = %s, opt %p, isMixin %d, pattern '%s', matchObject %p\n", className(startCl), startCl->opt, isMixin, pattern, matchObject);*/ /* * check all subclasses of startCl for mixins */ for (sc = startCl->sub; sc; sc = sc->nextPtr) { rc = getAllObjectMixinsOf(interp, destTable, sc->cl, isMixin, appendResult, pattern, matchObject); if (rc) {return rc;} } /*fprintf(stderr, "check subclasses of %s done\n", ObjStr(startCl->object.cmdName));*/ if (startCl->opt) { XOTclCmdList *m; XOTclClass *cl; for (m = startCl->opt->isClassMixinOf; m; m = m->nextPtr) { /* we should have no deleted commands in the list */ assert(Tcl_Command_cmdEpoch(m->cmdPtr) == NULL); cl = XOTclGetClassFromCmdPtr(m->cmdPtr); assert(cl); /*fprintf(stderr, "check %s mixinof %s\n", className(cl), ObjStr(startCl->object.cmdName));*/ rc = getAllObjectMixinsOf(interp, destTable, cl, isMixin, appendResult, pattern, matchObject); /* fprintf(stderr, "check %s mixinof %s done\n", className(cl), ObjStr(startCl->object.cmdName));*/ if (rc) {return rc;} } } /* * check, if startCl has associated per-object mixins */ if (startCl->opt) { XOTclCmdList *m; XOTclObject *obj; for (m = startCl->opt->isObjectMixinOf; m; m = m->nextPtr) { /* we should have no deleted commands in the list */ assert(Tcl_Command_cmdEpoch(m->cmdPtr) == NULL); obj = XOTclGetObjectFromCmdPtr(m->cmdPtr); assert(obj); rc = addToResultSet(interp, destTable, obj, &new, appendResult, pattern, matchObject); if (rc == 1) {return rc;} } } return rc; } /* * recursively get all isClassMixinOf of a class into an initialized * object ptr hashtable (TCL_ONE_WORD_KEYS) */ static int getAllClassMixinsOf(Tcl_Interp *interp, Tcl_HashTable *destTable, XOTclClass *startCl, int isMixin, int appendResult, char *pattern, XOTclObject *matchObject) { int rc = 0, new = 0; XOTclClass *cl; XOTclClasses *sc; /*fprintf(stderr, "startCl = %p %s, opt %p, isMixin %d\n", startCl, className(startCl), startCl->opt, isMixin);*/ /* * the startCl is a per class mixin, add it to the result set */ if (isMixin) { rc = addToResultSet(interp, destTable, &startCl->object, &new, appendResult, pattern, matchObject); if (rc == 1) {return rc;} /* * check all subclasses of startCl for mixins */ for (sc = startCl->sub; sc; sc = sc->nextPtr) { if (sc->cl != startCl) { rc = getAllClassMixinsOf(interp, destTable, sc->cl, isMixin, appendResult, pattern, matchObject); if (rc) {return rc;} } else { /* TODO: sanity check; it seems that we can create via __default_superclass a class which has itself als subclass */ fprintf(stderr, "... STRANGE %p is subclass of %p %s, sub %p\n", sc->cl, startCl, className(startCl), startCl->sub); } } } /* * check, if startCl is a per-class mixin of some other classes */ if (startCl->opt) { XOTclCmdList *m; for (m = startCl->opt->isClassMixinOf; m; m = m->nextPtr) { /* we should have no deleted commands in the list */ assert(Tcl_Command_cmdEpoch(m->cmdPtr) == NULL); cl = XOTclGetClassFromCmdPtr(m->cmdPtr); assert(cl); rc = addToResultSet(interp, destTable, &cl->object, &new, appendResult, pattern, matchObject); if (rc == 1) {return rc;} if (new) { /*fprintf(stderr, "... new\n");*/ rc = getAllClassMixinsOf(interp, destTable, cl, 1, appendResult, pattern, matchObject); if (rc) {return rc;} } } } return rc; } /* * recursively get all classmixins of a class into an initialized * object ptr hashtable (TCL_ONE_WORD_KEYS) */ static int getAllClassMixins(Tcl_Interp *interp, Tcl_HashTable *destTable, XOTclClass *startCl, int withGuards, char *pattern, XOTclObject *matchObject) { int rc = 0, new = 0; XOTclClass *cl; XOTclClasses *sc; /* * check this class for classmixins */ if (startCl->opt) { XOTclCmdList *m; for (m = startCl->opt->classmixins; m; m = m->nextPtr) { /* we should have no deleted commands in the list */ assert(Tcl_Command_cmdEpoch(m->cmdPtr) == NULL); cl = XOTclGetClassFromCmdPtr(m->cmdPtr); assert(cl); /* fprintf(stderr, "class mixin found: %s\n", className(cl)); */ if ((withGuards) && (m->clientData)) { /* fprintf(stderr, "addToResultSetWithGuards: %s\n", className(cl)); */ rc = addToResultSetWithGuards(interp, destTable, cl, m->clientData, &new, 1, pattern, matchObject); } else { /* fprintf(stderr, "addToResultSet: %s\n", className(cl)); */ rc = addToResultSet(interp, destTable, &cl->object, &new, 1, pattern, matchObject); } if (rc == 1) {return rc;} if (new) { /* fprintf(stderr, "class mixin getAllClassMixins for: %s (%s)\n", className(cl), ObjStr(startCl->object.cmdName)); */ rc = getAllClassMixins(interp, destTable, cl, withGuards, pattern, matchObject); if (rc) {return rc;} } } } /* * check all superclasses of startCl for classmixins */ for (sc = startCl->super; sc; sc = sc->nextPtr) { /* fprintf(stderr, "Superclass getAllClassMixins for %s (%s)\n", ObjStr(sc->cl->object.cmdName), ObjStr(startCl->object.cmdName)); */ rc = getAllClassMixins(interp, destTable, sc->cl, withGuards, pattern, matchObject); if (rc) {return rc;} } return rc; } static void RemoveFromClassMixinsOf(Tcl_Command cmd, XOTclCmdList *cmdlist) { for ( ; cmdlist; cmdlist = cmdlist->nextPtr) { XOTclClass *ncl = XOTclGetClassFromCmdPtr(cmdlist->cmdPtr); XOTclClassOpt *nclopt = ncl ? ncl->opt : NULL; if (nclopt) { XOTclCmdList *del = CmdListFindCmdInList(cmd, nclopt->isClassMixinOf); if (del) { /* fprintf(stderr, "Removing class %s from isClassMixinOf of class %s\n", className(cl), ObjStr(XOTclGetClassFromCmdPtr(cmdlist->cmdPtr)->object.cmdName)); */ del = CmdListRemoveFromList(&nclopt->isClassMixinOf, del); CmdListDeleteCmdListEntry(del, GuardDel); } } } } static void removeFromObjectMixinsOf(Tcl_Command cmd, XOTclCmdList *cmdlist) { for ( ; cmdlist; cmdlist = cmdlist->nextPtr) { XOTclClass *cl = XOTclGetClassFromCmdPtr(cmdlist->cmdPtr); XOTclClassOpt *clopt = cl ? cl->opt : NULL; if (clopt) { XOTclCmdList *del = CmdListFindCmdInList(cmd, clopt->isObjectMixinOf); if (del) { /* fprintf(stderr, "Removing object %s from isObjectMixinOf of Class %s\n", objectName(obj), ObjStr(XOTclGetClassFromCmdPtr(cmdlist->cmdPtr)->object.cmdName)); */ del = CmdListRemoveFromList(&clopt->isObjectMixinOf, del); CmdListDeleteCmdListEntry(del, GuardDel); } } /* else fprintf(stderr, "CleanupDestroyObject %s: NULL pointer in mixins!\n", objectName(obj)); */ } } static void RemoveFromClassmixins(Tcl_Command cmd, XOTclCmdList *cmdlist) { for ( ; cmdlist; cmdlist = cmdlist->nextPtr) { XOTclClass *cl = XOTclGetClassFromCmdPtr(cmdlist->cmdPtr); XOTclClassOpt *clopt = cl ? cl->opt : NULL; if (clopt) { XOTclCmdList *del = CmdListFindCmdInList(cmd, clopt->classmixins); if (del) { /* fprintf(stderr, "Removing class %s from mixins of object %s\n", className(cl), ObjStr(XOTclGetObjectFromCmdPtr(cmdlist->cmdPtr)->cmdName)); */ del = CmdListRemoveFromList(&clopt->classmixins, del); CmdListDeleteCmdListEntry(del, GuardDel); if (cl->object.mixinOrder) MixinResetOrder(&cl->object); } } } } static void RemoveFromMixins(Tcl_Command cmd, XOTclCmdList *cmdlist) { for ( ; cmdlist; cmdlist = cmdlist->nextPtr) { XOTclObject *nobj = XOTclGetObjectFromCmdPtr(cmdlist->cmdPtr); XOTclObjectOpt *objopt = nobj ? nobj->opt : NULL; if (objopt) { XOTclCmdList *del = CmdListFindCmdInList(cmd, objopt->mixins); if (del) { /* fprintf(stderr, "Removing class %s from mixins of object %s\n", className(cl), ObjStr(XOTclGetObjectFromCmdPtr(cmdlist->cmdPtr)->cmdName)); */ del = CmdListRemoveFromList(&objopt->mixins, del); CmdListDeleteCmdListEntry(del, GuardDel); if (nobj->mixinOrder) MixinResetOrder(nobj); } } } } /* * Reset mixin order for instances of a class */ static void MixinResetOrderForInstances(Tcl_Interp *interp, XOTclClass *cl) { Tcl_HashSearch hSrch; Tcl_HashEntry *hPtr; hPtr = Tcl_FirstHashEntry(&cl->instances, &hSrch); /*fprintf(stderr, "invalidating instances of class %s\n", ObjStr(clPtr->cl->object.cmdName));*/ /* Here we should check, whether this class is used as an object or class mixin somewhere else and invalidate the objects of these as well -- */ for (; hPtr; hPtr = Tcl_NextHashEntry(&hSrch)) { XOTclObject *obj = (XOTclObject *)Tcl_GetHashKey(&cl->instances, hPtr); if (obj && !(obj->flags & XOTCL_DURING_DELETE) && (obj->flags & XOTCL_MIXIN_ORDER_DEFINED_AND_VALID)) { MixinResetOrder(obj); obj->flags &= ~XOTCL_MIXIN_ORDER_VALID; } } } /* reset mixin order for all objects having this class as per object mixin */ static void ResetOrderOfClassesUsedAsMixins(XOTclClass *cl) { /*fprintf(stderr, "ResetOrderOfClassesUsedAsMixins %s - %p\n", className(cl), cl->opt);*/ if (cl->opt) { XOTclCmdList *ml; for (ml = cl->opt->isObjectMixinOf; ml; ml = ml->nextPtr) { XOTclObject *obj = XOTclGetObjectFromCmdPtr(ml->cmdPtr); if (obj) { if (obj->mixinOrder) { MixinResetOrder(obj); } obj->flags &= ~XOTCL_MIXIN_ORDER_VALID; } } } } /* * if the class hierarchy or class mixins have changed -> * invalidate mixin entries in all dependent instances */ static void MixinInvalidateObjOrders(Tcl_Interp *interp, XOTclClass *cl) { XOTclClasses *saved = cl->order, *clPtr; Tcl_HashSearch hSrch; Tcl_HashEntry *hPtr; Tcl_HashTable objTable, *commandTable = &objTable; cl->order = NULL; /* reset mixin order for all instances of the class and the instances of its subclasses */ for (clPtr = ComputeOrder(cl, cl->order, Sub); clPtr; clPtr = clPtr->nextPtr) { Tcl_HashSearch hSrch; Tcl_HashEntry *hPtr = &clPtr->cl->instances ? Tcl_FirstHashEntry(&clPtr->cl->instances, &hSrch) : NULL; /* reset mixin order for all objects having this class as per object mixin */ ResetOrderOfClassesUsedAsMixins(clPtr->cl); /* fprintf(stderr, "invalidating instances of class %s\n", ObjStr(clPtr->cl->object.cmdName)); */ for (; hPtr; hPtr = Tcl_NextHashEntry(&hSrch)) { XOTclObject *obj = (XOTclObject *)Tcl_GetHashKey(&clPtr->cl->instances, hPtr); if (obj->mixinOrder) { MixinResetOrder(obj); } obj->flags &= ~XOTCL_MIXIN_ORDER_VALID; } } XOTclClassListFree(cl->order); cl->order = saved; /* Reset mixin order for all objects having this class as a per class mixin. This means that we have to work through the class mixin hierarchy with its corresponding instances. */ Tcl_InitHashTable(commandTable, TCL_ONE_WORD_KEYS); MEM_COUNT_ALLOC("Tcl_InitHashTable", commandTable); getAllClassMixinsOf(interp, commandTable, cl, 1, 0, NULL, NULL); for (hPtr = Tcl_FirstHashEntry(commandTable, &hSrch); hPtr; hPtr = Tcl_NextHashEntry(&hSrch)) { XOTclClass *ncl = (XOTclClass *)Tcl_GetHashKey(commandTable, hPtr); /*fprintf(stderr, "Got %s, reset for ncl %p\n", ncl?ObjStr(ncl->object.cmdName):"NULL", ncl);*/ if (ncl) { MixinResetOrderForInstances(interp, ncl); /* this place seems to be sufficient to invalidate the computed object parameter definitions */ /*fprintf(stderr, "MixinInvalidateObjOrders via class mixin %s calls ifd invalidate \n", className(ncl));*/ XOTclCInvalidateObjectParameterMethod(interp, ncl); } } MEM_COUNT_FREE("Tcl_InitHashTable", commandTable); } static int MixinInfo(Tcl_Interp *interp, XOTclCmdList *m, char *pattern, int withGuards, XOTclObject *matchObject); /* * the mixin order is either * DEFINED (there are mixins on the instance), * NONE (there are no mixins for the instance), * or INVALID (a class re-strucuturing has occured, thus it is not clear * whether mixins are defined or not). * If it is INVALID MixinComputeDefined can be used to compute the order * and set the instance to DEFINED or NONE */ static void MixinComputeDefined(Tcl_Interp *interp, XOTclObject *obj) { MixinComputeOrder(interp, obj); obj->flags |= XOTCL_MIXIN_ORDER_VALID; if (obj->mixinOrder) obj->flags |= XOTCL_MIXIN_ORDER_DEFINED; else obj->flags &= ~XOTCL_MIXIN_ORDER_DEFINED; } /* * Walk through the command list until the current command is reached. * return the next entry. * */ static XOTclCmdList * seekCurrent(Tcl_Command currentCmd, register XOTclCmdList *cmdl) { if (currentCmd) { /* go forward to current class */ for (; cmdl; cmdl = cmdl->nextPtr) { if (cmdl->cmdPtr == currentCmd) { return cmdl->nextPtr; } } } return cmdl; } /* * before we can perform a mixin dispatch, MixinSearchProc seeks the * current mixin and the relevant calling information */ static int MixinSearchProc(Tcl_Interp *interp, XOTclObject *obj, char *methodName, XOTclClass **cl, Tcl_Command *currentCmdPtr, Tcl_Command *cmdPtr) { Tcl_Command cmd = NULL; XOTclCmdList *cmdList; XOTclClass *cls; int result = TCL_OK; assert(obj); assert(obj->mixinStack); /* ensure that the mixin order is not invalid, otherwise compute order */ assert(obj->flags & XOTCL_MIXIN_ORDER_VALID); /*MixinComputeDefined(interp, obj);*/ cmdList = seekCurrent(obj->mixinStack->currentCmdPtr, obj->mixinOrder); RUNTIME_STATE(interp)->cmdPtr = cmdList ? cmdList->cmdPtr : NULL; /* fprintf(stderr, "MixinSearch searching for '%s' %p\n", methodName, cmdList); */ /*CmdListPrint(interp, "MixinSearch CL = \n", cmdList);*/ while (cmdList) { if (Tcl_Command_cmdEpoch(cmdList->cmdPtr)) { cmdList = cmdList->nextPtr; } else { cls = XOTclGetClassFromCmdPtr(cmdList->cmdPtr); /* fprintf(stderr, "+++ MixinSearch %s->%s in %p cmdPtr %p clientData %p\n", objectName(obj), methodName, cmdList, cmdList->cmdPtr, cmdList->clientData); */ if (cls) { cmd = FindMethod(cls->nsPtr, methodName); if (cmd && cmdList->clientData) { if (!RUNTIME_STATE(interp)->guardCount) { result = GuardCall(obj, cls, (Tcl_Command) cmd, interp, (Tcl_Obj*)cmdList->clientData, NULL); } } if (cmd && result == TCL_OK) { /* * on success: compute mixin call data */ *cl = cls; *currentCmdPtr = cmdList->cmdPtr; break; } else if (result == TCL_ERROR) { break; } else { if (result == XOTCL_CHECK_FAILED) result = TCL_OK; cmd = NULL; cmdList = cmdList->nextPtr; } } } } *cmdPtr = cmd; return result; } /* * info option for mixins and classmixins */ static int MixinInfo(Tcl_Interp *interp, XOTclCmdList *m, char *pattern, int withGuards, XOTclObject *matchObject) { Tcl_Obj *list = Tcl_NewListObj(0, NULL); XOTclClass *mixinClass; /*fprintf(stderr, " mixin info m=%p, pattern %s, matchObject %p\n", m, pattern, matchObject);*/ while (m) { /* fprintf(stderr, " mixin info m=%p, next=%p, pattern %s, matchObject %p\n", m, m->next, pattern, matchObject);*/ mixinClass = XOTclGetClassFromCmdPtr(m->cmdPtr); if (mixinClass && (!pattern || (matchObject && &(mixinClass->object) == matchObject) || (!matchObject && Tcl_StringMatch(ObjStr(mixinClass->object.cmdName), pattern)))) { if (withGuards && m->clientData) { Tcl_Obj *l = Tcl_NewListObj(0, NULL); Tcl_Obj *g = (Tcl_Obj*) m->clientData; Tcl_ListObjAppendElement(interp, l, mixinClass->object.cmdName); Tcl_ListObjAppendElement(interp, l, XOTclGlobalObjects[XOTE_GUARD_OPTION]); Tcl_ListObjAppendElement(interp, l, g); Tcl_ListObjAppendElement(interp, list, l); } else { Tcl_ListObjAppendElement(interp, list, mixinClass->object.cmdName); } if (matchObject) break; } m = m->nextPtr; } Tcl_SetObjResult(interp, list); return TCL_OK; } /* * info option for mixinofs and isClassMixinOf */ static Tcl_Command MixinSearchMethodByName(Tcl_Interp *interp, XOTclCmdList *mixinList, char *name, XOTclClass **cl) { Tcl_Command cmd; for (; mixinList; mixinList = mixinList->nextPtr) { XOTclClass *foundCl = XOTclpGetClass(interp, (char *) Tcl_GetCommandName(interp, mixinList->cmdPtr)); if (foundCl && SearchCMethod(foundCl, name, &cmd)) { if (cl) *cl = foundCl; return cmd; } } return 0; } /* * Filter-Commands */ /* * The search method implements filter search order for object and * class ilter: first a given name is interpreted as fully qualified * method name. If no method is found, a proc is searched with fully * name. Otherwise the simple name is searched on the heritage order: * object (only for per-object filters), class, meta-class */ static Tcl_Command FilterSearch(Tcl_Interp *interp, char *name, XOTclObject *startingObj, XOTclClass *startingCl, XOTclClass **cl) { Tcl_Command cmd = NULL; if (startingObj) { XOTclObjectOpt *opt = startingObj->opt; /* * the object-specific filter can also be defined on the object's * class, its hierarchy, or the respective classmixins; thus use the * object's class as start point for the class-specific search then ... */ startingCl = startingObj->cl; /* * search for filters on object mixins */ if (opt && opt->mixins) { if ((cmd = MixinSearchMethodByName(interp, opt->mixins, name, cl))) { return cmd; } } } /* * search for classfilters on classmixins */ if (startingCl) { XOTclClassOpt *opt = startingCl->opt; if (opt && opt->classmixins) { if ((cmd = MixinSearchMethodByName(interp, opt->classmixins, name, cl))) { return cmd; } } } /* * seach for object procs that are used as filters */ if (startingObj && startingObj->nsPtr) { /*fprintf(stderr, "search filter %s as proc \n", name);*/ if ((cmd = FindMethod(startingObj->nsPtr, name))) { *cl = (XOTclClass*)startingObj; return cmd; } } /* * ok, no filter on obj or mixins -> search class */ if (startingCl) { *cl = SearchCMethod(startingCl, name, &cmd); if (!*cl) { /* * If no filter is found yet -> search the meta-class */ *cl = SearchCMethod(startingCl->object.cl, name, &cmd); } } return cmd; } /* * Filter Guards */ /* check a filter guard, return 1 if ok */ static int GuardCheck(Tcl_Interp *interp, Tcl_Obj *guard) { int result; XOTclRuntimeState *rst = RUNTIME_STATE(interp); if (guard) { /* * if there are more than one filter guard for this filter * (i.e. they are inherited), then they are OR combined * -> if one check succeeds => return 1 */ /*fprintf(stderr, "checking guard **%s**\n", ObjStr(guard));*/ rst->guardCount++; result = checkConditionInScope(interp, guard); rst->guardCount--; /*fprintf(stderr, "checking guard **%s** returned rc=%d\n", ObjStr(guard), rc);*/ if (result == TCL_OK) { /* fprintf(stderr, " +++ OK\n"); */ return TCL_OK; } else if (result == TCL_ERROR) { Tcl_Obj *sr = Tcl_GetObjResult(interp); INCR_REF_COUNT(sr); /* fprintf(stderr, " +++ ERROR\n");*/ XOTclVarErrMsg(interp, "Guard Error: '", ObjStr(guard), "'\n\n", ObjStr(sr), (char *) NULL); DECR_REF_COUNT(sr); return TCL_ERROR; } } /* fprintf(stderr, " +++ FAILED\n"); */ return XOTCL_CHECK_FAILED; } /* static void GuardPrint(Tcl_Interp *interp, ClientData clientData) { Tcl_Obj *guard = (TclObj*) clientData; fprintf(stderr, " +++ \n"); if (guard) { fprintf(stderr, " * %s \n", ObjStr(guard)); } fprintf(stderr, " +++ \n"); } */ static void GuardDel(XOTclCmdList *CL) { /*fprintf(stderr, "GuardDel %p clientData = %p\n", CL, CL? CL->clientData : NULL);*/ if (CL && CL->clientData) { DECR_REF_COUNT((Tcl_Obj *)CL->clientData); CL->clientData = NULL; } } XOTCLINLINE static void GuardAdd(Tcl_Interp *interp, XOTclCmdList *CL, Tcl_Obj *guard) { if (guard) { GuardDel(CL); if (strlen(ObjStr(guard)) != 0) { INCR_REF_COUNT(guard); CL->clientData = (ClientData) guard; /*fprintf(stderr, "guard added to %p cmdPtr=%p, clientData= %p\n", CL, CL->cmdPtr, CL->clientData); */ } } } /* static void GuardAddList(Tcl_Interp *interp, XOTclCmdList *dest, ClientData source) { XOTclTclObjList *s = (XOTclTclObjList*) source; GuardAdd(interp, dest, (Tcl_Obj*) s->content); s = s->nextPtr; } */ static int GuardCall(XOTclObject *obj, XOTclClass *cl, Tcl_Command cmd, Tcl_Interp *interp, Tcl_Obj *guard, XOTclCallStackContent *cscPtr) { int result = TCL_OK; if (guard) { Tcl_Obj *res = Tcl_GetObjResult(interp); /* save the result */ XOTcl_FrameDecls; INCR_REF_COUNT(res); /* GuardPrint(interp, cmdList->clientData); */ /* * For the guard push a fake callframe on the Tcl stack so that * e.g. a "self calledproc" and other methods in the guard behave * like in the proc. */ #if defined(TCL85STACK) if (cscPtr) { XOTcl_PushFrameCsc(interp, obj, cscPtr); } else { XOTcl_PushFrameObj(interp, obj); } #else CallStackPush(interp, obj, cl, cmd, XOTCL_CSC_TYPE_GUARD); XOTcl_PushFrameObj(interp, obj); #endif result = GuardCheck(interp, guard); if (cscPtr) { XOTcl_PopFrameCsc(interp, obj); } else { XOTcl_PopFrameObj(interp, obj); } #if defined(TCL85STACK) #else CallStackPop(interp, NULL); #endif if (result != TCL_ERROR) { Tcl_SetObjResult(interp, res); /* restore the result */ } DECR_REF_COUNT(res); } return result; } static int GuardAddFromDefinitionList(Tcl_Interp *interp, XOTclCmdList *dest, XOTclObject *obj, Tcl_Command interceptorCmd, XOTclCmdList *interceptorDefList) { XOTclCmdList *h; if (interceptorDefList) { h = CmdListFindCmdInList(interceptorCmd, interceptorDefList); if (h) { GuardAdd(interp, dest, (Tcl_Obj*) h->clientData); /* * 1 means we have added a guard successfully "interceptorCmd" */ return 1; } } /* * 0 means we have not added a guard successfully "interceptorCmd" */ return 0; } static void GuardAddInheritedGuards(Tcl_Interp *interp, XOTclCmdList *dest, XOTclObject *obj, Tcl_Command filterCmd) { XOTclClasses *pl; int guardAdded = 0; XOTclObjectOpt *opt; /* search guards for classfilters registered on mixins */ if (!(obj->flags & XOTCL_MIXIN_ORDER_VALID)) MixinComputeDefined(interp, obj); if (obj->flags & XOTCL_MIXIN_ORDER_DEFINED_AND_VALID) { XOTclCmdList *ml; XOTclClass *mixin; for (ml = obj->mixinOrder; ml && !guardAdded; ml = ml->nextPtr) { mixin = XOTclGetClassFromCmdPtr(ml->cmdPtr); if (mixin && mixin->opt) { guardAdded = GuardAddFromDefinitionList(interp, dest, obj, filterCmd, mixin->opt->classfilters); } } } /* search per-object filters */ opt = obj->opt; if (!guardAdded && opt && opt->filters) { guardAdded = GuardAddFromDefinitionList(interp, dest, obj, filterCmd, opt->filters); } if (!guardAdded) { /* search per-class filters */ for (pl = ComputeOrder(obj->cl, obj->cl->order, Super); !guardAdded && pl; pl = pl->nextPtr) { XOTclClassOpt *opt = pl->cl->opt; if (opt) { guardAdded = GuardAddFromDefinitionList(interp, dest, obj, filterCmd, opt->classfilters); } } /* * if this is not a registered filter, it is an inherited filter, like: * Class create A * A method f ... * Class create B -superclass A * B method {{f {}}} * B filter f * -> get the guard from the filter that inherits it (here B->f) */ if (!guardAdded) { XOTclCmdList *registeredFilter = CmdListFindNameInList(interp, (char *) Tcl_GetCommandName(interp, filterCmd), obj->filterOrder); if (registeredFilter) { GuardAdd(interp, dest, (Tcl_Obj*) registeredFilter->clientData); } } } } static int GuardList(Tcl_Interp *interp, XOTclCmdList *frl, char *interceptorName) { XOTclCmdList *h; if (frl) { /* try to find simple name first */ h = CmdListFindNameInList(interp, interceptorName, frl); if (!h) { /* maybe it is a qualified name */ Tcl_Command cmd = NSFindCommand(interp, interceptorName, NULL); if (cmd) { h = CmdListFindCmdInList(cmd, frl); } } if (h) { Tcl_ResetResult(interp); if (h->clientData) { Tcl_Obj *g = (Tcl_Obj*) h->clientData; Tcl_SetObjResult(interp, g); } return TCL_OK; } } return XOTclVarErrMsg(interp, "info (*)guard: can't find filter/mixin ", interceptorName, (char *) NULL); } /* * append a filter command to the 'filterList' of an obj/class */ static int FilterAdd(Tcl_Interp *interp, XOTclCmdList **filterList, Tcl_Obj *name, XOTclObject *startingObj, XOTclClass *startingCl) { Tcl_Command cmd; int ocName; Tcl_Obj **ovName; Tcl_Obj *guard = NULL; XOTclCmdList *new; XOTclClass *cl; if (Tcl_ListObjGetElements(interp, name, &ocName, &ovName) == TCL_OK && ocName > 1) { if (ocName == 3 && !strcmp(ObjStr(ovName[1]), XOTclGlobalStrings[XOTE_GUARD_OPTION])) { name = ovName[0]; guard = ovName[2]; } } if (!(cmd = FilterSearch(interp, ObjStr(name), startingObj, startingCl, &cl))) { if (startingObj) return XOTclVarErrMsg(interp, "object filter: can't find filterproc on: ", objectName(startingObj), " - proc: ", ObjStr(name), (char *) NULL); else return XOTclVarErrMsg(interp, "class filter: can't find filterproc on: ", ObjStr(startingCl->object.cmdName), " - proc: ", ObjStr(name), (char *) NULL); } /*fprintf(stderr, " +++ adding filter %s cl %p\n", ObjStr(name), cl);*/ new = CmdListAdd(filterList, cmd, cl, /*noDuplicates*/ 1); if (guard) { GuardAdd(interp, new, guard); } else { if (new->clientData) GuardDel(new); } return TCL_OK; } /* * reset the filter order cached in obj->filterOrder */ static void FilterResetOrder(XOTclObject *obj) { CmdListRemoveList(&obj->filterOrder, GuardDel); obj->filterOrder = NULL; } /* * search the filter in the hierarchy again with FilterSearch, e.g. * upon changes in the class hierarchy or mixins that carry the filter * command, so that we can be sure it is still reachable. */ static void FilterSearchAgain(Tcl_Interp *interp, XOTclCmdList **filters, XOTclObject *startingObj, XOTclClass *startingCl) { char *simpleName; Tcl_Command cmd; XOTclCmdList *cmdList, *del; XOTclClass *cl = NULL; CmdListRemoveEpoched(filters, GuardDel); for (cmdList = *filters; cmdList; ) { simpleName = (char *) Tcl_GetCommandName(interp, cmdList->cmdPtr); cmd = FilterSearch(interp, simpleName, startingObj, startingCl, &cl); if (cmd == NULL) { del = CmdListRemoveFromList(filters, cmdList); cmdList = cmdList->nextPtr; CmdListDeleteCmdListEntry(del, GuardDel); } else if (cmd != cmdList->cmdPtr) { CmdListReplaceCmd(cmdList, cmd, cl); cmdList = cmdList->nextPtr; } else { cmdList = cmdList->nextPtr; } } /* some entries might be NULL now, if they are not found anymore -> delete those CmdListRemoveNulledEntries(filters, GuardDel); */ } /* * if the class hierarchy or class filters have changed -> * invalidate filter entries in all dependent instances * */ static void FilterInvalidateObjOrders(Tcl_Interp *interp, XOTclClass *cl) { XOTclClasses *saved = cl->order, *clPtr, *savePtr; cl->order = NULL; savePtr = clPtr = ComputeOrder(cl, cl->order, Sub); cl->order = saved; for ( ; clPtr; clPtr = clPtr->nextPtr) { Tcl_HashSearch hSrch; Tcl_HashEntry *hPtr = &clPtr->cl->instances ? Tcl_FirstHashEntry(&clPtr->cl->instances, &hSrch) : 0; /* recalculate the commands of all class-filter registrations */ if (clPtr->cl->opt) { FilterSearchAgain(interp, &clPtr->cl->opt->classfilters, 0, clPtr->cl); } for (; hPtr; hPtr = Tcl_NextHashEntry(&hSrch)) { XOTclObject *obj = (XOTclObject *)Tcl_GetHashKey(&clPtr->cl->instances, hPtr); FilterResetOrder(obj); obj->flags &= ~XOTCL_FILTER_ORDER_VALID; /* recalculate the commands of all object filter registrations */ if (obj->opt) { FilterSearchAgain(interp, &obj->opt->filters, obj, 0); } } } XOTclClassListFree(savePtr); } /* * from cl on down the hierarchy we remove all filters * the refer to "removeClass" namespace. E.g. used to * remove filters defined in superclass list from dependent * class cl */ static void FilterRemoveDependentFilterCmds(XOTclClass *cl, XOTclClass *removeClass) { XOTclClasses *saved = cl->order, *clPtr; cl->order = NULL; /*fprintf(stderr, "FilterRemoveDependentFilterCmds cl %p %s, removeClass %p %s\n", cl, className(cl), removeClass, ObjStr(removeClass->object.cmdName));*/ for (clPtr = ComputeOrder(cl, cl->order, Sub); clPtr; clPtr = clPtr->nextPtr) { Tcl_HashSearch hSrch; Tcl_HashEntry *hPtr = &clPtr->cl->instances ? Tcl_FirstHashEntry(&clPtr->cl->instances, &hSrch) : NULL; XOTclClassOpt *opt = clPtr->cl->opt; if (opt) { CmdListRemoveContextClassFromList(&opt->classfilters, removeClass, GuardDel); } for (; hPtr; hPtr = Tcl_NextHashEntry(&hSrch)) { XOTclObject *obj = (XOTclObject*) Tcl_GetHashKey(&clPtr->cl->instances, hPtr); if (obj->opt) { CmdListRemoveContextClassFromList(&obj->opt->filters, removeClass, GuardDel); } } } XOTclClassListFree(cl->order); cl->order = saved; } /* * Build up a qualifier of the form method . * If cl is NULL, we add the modifier "object". */ static Tcl_Obj * getFullProcQualifier(Tcl_Interp *interp, CONST char *cmdName, XOTclObject *obj, XOTclClass *cl, Tcl_Command cmd) { Tcl_Obj *list = Tcl_NewListObj(0, NULL); Tcl_Obj *procObj = Tcl_NewStringObj(cmdName, -1); Tcl_ObjCmdProc *objProc = Tcl_Command_objProc(cmd); int isTcl = CmdIsProc(cmd); if (cl) { Tcl_ListObjAppendElement(interp, list, cl->object.cmdName); } else { Tcl_ListObjAppendElement(interp, list, obj->cmdName); Tcl_ListObjAppendElement(interp, list, XOTclGlobalObjects[XOTE_OBJECT]); } if (isTcl) { Tcl_ListObjAppendElement(interp, list, XOTclGlobalObjects[XOTE_METHOD]); } else if (objProc == XOTclForwardMethod) { Tcl_ListObjAppendElement(interp, list, XOTclGlobalObjects[XOTE_FORWARD]); } else if (objProc == XOTclSetterMethod) { Tcl_ListObjAppendElement(interp, list, XOTclGlobalObjects[XOTE_SETTER]); } else { Tcl_ListObjAppendElement(interp, list, XOTclGlobalObjects[XOTE_CMD]); } Tcl_ListObjAppendElement(interp, list, procObj); return list; } /* * info option for filters and classfilters * withGuards -> if not 0 => append guards * fullProcQualifiers -> if not 0 => full names with obj/class method */ static int FilterInfo(Tcl_Interp *interp, XOTclCmdList *f, char *pattern, int withGuards, int fullProcQualifiers) { CONST char *simpleName; Tcl_Obj *list = Tcl_NewListObj(0, NULL); /*fprintf(stderr, "FilterInfo %p %s %d %d\n", pattern, pattern, withGuards, fullProcQualifiers);*/ /* guard lists should only have unqualified filter lists when withGuards is activated, fullProcQualifiers has not effect */ if (withGuards) { fullProcQualifiers = 0; } while (f) { simpleName = Tcl_GetCommandName(interp, f->cmdPtr); if (!pattern || Tcl_StringMatch(simpleName, pattern)) { if (withGuards && f->clientData) { Tcl_Obj *innerList = Tcl_NewListObj(0, NULL); Tcl_Obj *g = (Tcl_Obj*) f->clientData; Tcl_ListObjAppendElement(interp, innerList, Tcl_NewStringObj(simpleName, -1)); Tcl_ListObjAppendElement(interp, innerList, XOTclGlobalObjects[XOTE_GUARD_OPTION]); Tcl_ListObjAppendElement(interp, innerList, g); Tcl_ListObjAppendElement(interp, list, innerList); } else { if (fullProcQualifiers) { XOTclClass *fcl; XOTclObject *fobj; if (f->clorobj && !XOTclObjectIsClass(&f->clorobj->object)) { fobj = (XOTclObject *)f->clorobj; fcl = NULL; } else { fobj = NULL; fcl = f->clorobj; } Tcl_ListObjAppendElement(interp, list, getFullProcQualifier(interp, simpleName, fobj, fcl, f->cmdPtr)); } else { Tcl_ListObjAppendElement(interp, list, Tcl_NewStringObj(simpleName, -1)); } } } f = f->nextPtr; } Tcl_SetObjResult(interp, list); return TCL_OK; } /* * Appends XOTclCmdPtr *containing the filter cmds and their * superclass specializations to 'filterList' */ static void FilterComputeOrderFullList(Tcl_Interp *interp, XOTclCmdList **filters, XOTclCmdList **filterList) { XOTclCmdList *f ; char *simpleName; XOTclClass *fcl; XOTclClasses *pl; /* * ensure that no epoched command is in the filters list */ CmdListRemoveEpoched(filters, GuardDel); for (f = *filters; f; f = f->nextPtr) { simpleName = (char *) Tcl_GetCommandName(interp, f->cmdPtr); fcl = f->clorobj; CmdListAdd(filterList, f->cmdPtr, fcl, /*noDuplicates*/ 0); if (fcl && !XOTclObjectIsClass(&fcl->object)) { /* get the object for per-object filter */ XOTclObject *fObj = (XOTclObject *)fcl; /* and then get class */ fcl = fObj->cl; } /* if we have a filter class -> search up the inheritance hierarchy*/ if (fcl) { pl = ComputeOrder(fcl, fcl->order, Super); if (pl && pl->nextPtr) { /* don't search on the start class again */ pl = pl->nextPtr; /* now go up the hierarchy */ for(; pl; pl = pl->nextPtr) { Tcl_Command pi = FindMethod(pl->cl->nsPtr, simpleName); if (pi) { CmdListAdd(filterList, pi, pl->cl, /*noDuplicates*/ 0); /* fprintf(stderr, " %s::%s, ", ObjStr(pl->cl->object.cmdName), simpleName); */ } } } } } /*CmdListPrint(interp, "FilterComputeOrderFullList....\n", *filterList);*/ } /* * Computes a linearized order of object and class filter. Then * duplicates in the full list and with the class inheritance list of * 'obj' are eliminated. The precendence rule is that the last * occurence makes it into the final list. */ static void FilterComputeOrder(Tcl_Interp *interp, XOTclObject *obj) { XOTclCmdList *filterList = NULL, *next, *checker, *newlist; XOTclClasses *pl; if (obj->filterOrder) FilterResetOrder(obj); /* fprintf(stderr, " List: ", objectName(obj)); */ /* append classfilters registered for mixins */ if (!(obj->flags & XOTCL_MIXIN_ORDER_VALID)) MixinComputeDefined(interp, obj); if (obj->flags & XOTCL_MIXIN_ORDER_DEFINED_AND_VALID) { XOTclCmdList *ml; XOTclClass *mixin; for (ml = obj->mixinOrder; ml; ml = ml->nextPtr) { mixin = XOTclGetClassFromCmdPtr(ml->cmdPtr); if (mixin && mixin->opt && mixin->opt->classfilters) FilterComputeOrderFullList(interp, &mixin->opt->classfilters, &filterList); } } /* append per-obj filters */ if (obj->opt) FilterComputeOrderFullList(interp, &obj->opt->filters, &filterList); /* append per-class filters */ for (pl = ComputeOrder(obj->cl, obj->cl->order, Super); pl; pl=pl->nextPtr) { XOTclClassOpt *opt = pl->cl->opt; if (opt && opt->classfilters) { FilterComputeOrderFullList(interp, &opt->classfilters, &filterList); } } /* fprintf(stderr, "\n"); */ /* use no duplicates & no classes of the precedence order on the resulting list */ while (filterList) { checker = next = filterList->nextPtr; while (checker) { if (checker->cmdPtr == filterList->cmdPtr) break; checker = checker->nextPtr; } if (checker == NULL) { newlist = CmdListAdd(&obj->filterOrder, filterList->cmdPtr, filterList->clorobj, /*noDuplicates*/ 0); GuardAddInheritedGuards(interp, newlist, obj, filterList->cmdPtr); /* fprintf(stderr, " Adding %s::%s,\n", filterList->cmdPtr->nsPtr->fullName, Tcl_GetCommandName(interp, filterList->cmdPtr)); */ /* GuardPrint(interp, newlist->clientData); */ } CmdListDeleteCmdListEntry(filterList, GuardDel); filterList = next; } /* fprintf(stderr, "\n"); */ } /* * the filter order is either * DEFINED (there are filter on the instance), * NONE (there are no filter for the instance), * or INVALID (a class re-strucuturing has occured, thus it is not clear * whether filters are defined or not). * If it is INVALID FilterComputeDefined can be used to compute the order * and set the instance to DEFINE or NONE */ static void FilterComputeDefined(Tcl_Interp *interp, XOTclObject *obj) { FilterComputeOrder(interp, obj); obj->flags |= XOTCL_FILTER_ORDER_VALID; if (obj->filterOrder) obj->flags |= XOTCL_FILTER_ORDER_DEFINED; else obj->flags &= ~XOTCL_FILTER_ORDER_DEFINED; } /* * push a filter stack information on this object */ static int FilterStackPush(Tcl_Interp *interp, XOTclObject *obj, Tcl_Obj *calledProc) { register XOTclFilterStack *h = NEW(XOTclFilterStack); h->currentCmdPtr = NULL; h->calledProc = calledProc; INCR_REF_COUNT(h->calledProc); h->nextPtr = obj->filterStack; obj->filterStack = h; return 1; } /* * pop a filter stack information on this object */ static void FilterStackPop(XOTclObject *obj) { register XOTclFilterStack *h = obj->filterStack; obj->filterStack = h->nextPtr; /* free stack entry */ DECR_REF_COUNT(h->calledProc); FREE(XOTclFilterStack, h); } /* * search through the filter list on obj and class hierarchy * for registration of a command ptr as filter * * returns a tcl obj list with the filter registration, like: * " filter , * " filter , * or an empty list, if not registered */ static Tcl_Obj * FilterFindReg(Tcl_Interp *interp, XOTclObject *obj, Tcl_Command cmd) { Tcl_Obj *list = Tcl_NewListObj(0, NULL); XOTclClasses *pl; /* search per-object filters */ if (obj->opt && CmdListFindCmdInList(cmd, obj->opt->filters)) { Tcl_ListObjAppendElement(interp, list, obj->cmdName); Tcl_ListObjAppendElement(interp, list, XOTclGlobalObjects[XOTE_OBJECT]); Tcl_ListObjAppendElement(interp, list, XOTclGlobalObjects[XOTE_FILTER]); Tcl_ListObjAppendElement(interp, list, Tcl_NewStringObj(Tcl_GetCommandName(interp, cmd), -1)); return list; } /* search per-class filters */ for (pl = ComputeOrder(obj->cl, obj->cl->order, Super); pl; pl = pl->nextPtr) { XOTclClassOpt *opt = pl->cl->opt; if (opt && opt->classfilters) { if (CmdListFindCmdInList(cmd, opt->classfilters)) { Tcl_ListObjAppendElement(interp, list, pl->cl->object.cmdName); Tcl_ListObjAppendElement(interp, list, XOTclGlobalObjects[XOTE_FILTER]); Tcl_ListObjAppendElement(interp, list, Tcl_NewStringObj(Tcl_GetCommandName(interp, cmd), -1)); return list; } } } return list; } /* * before we can perform a filter dispatch, FilterSearchProc seeks the * current filter and the relevant calling information */ static Tcl_Command FilterSearchProc(Tcl_Interp *interp, XOTclObject *obj, Tcl_Command *currentCmd, XOTclClass **cl) { XOTclCmdList *cmdList; assert(obj); assert(obj->filterStack); *currentCmd = NULL; /* Ensure that the filter order is not invalid, otherwise compute order FilterComputeDefined(interp, obj); */ assert(obj->flags & XOTCL_FILTER_ORDER_VALID); cmdList = seekCurrent(obj->filterStack->currentCmdPtr, obj->filterOrder); while (cmdList) { if (Tcl_Command_cmdEpoch(cmdList->cmdPtr)) { cmdList = cmdList->nextPtr; } else if (FilterActiveOnObj(interp, obj, cmdList->cmdPtr)) { /* fprintf(stderr, "Filter <%s> -- Active on: %s\n", Tcl_GetCommandName(interp, (Tcl_Command)cmdList->cmdPtr), objectName(obj)); */ obj->filterStack->currentCmdPtr = cmdList->cmdPtr; cmdList = seekCurrent(obj->filterStack->currentCmdPtr, obj->filterOrder); } else { /* ok. we found it */ if (cmdList->clorobj && !XOTclObjectIsClass(&cmdList->clorobj->object)) { *cl = NULL; } else { *cl = cmdList->clorobj; } *currentCmd = cmdList->cmdPtr; /* fprintf(stderr, "FilterSearchProc - found: %s, %p\n", Tcl_GetCommandName(interp, (Tcl_Command)cmdList->cmdPtr), cmdList->cmdPtr); */ return cmdList->cmdPtr; } } return NULL; } static int SuperclassAdd(Tcl_Interp *interp, XOTclClass *cl, int oc, Tcl_Obj **ov, Tcl_Obj *arg, XOTclClass *base) { XOTclClasses *filterCheck, *osl = NULL; XOTclClass **scl; int reversed = 0; int i, j; filterCheck = ComputeOrder(cl, cl->order, Super); /* * we have to remove all dependent superclass filter referenced * by class or one of its subclasses * * do not check the class "cl" itself (first entry in * filterCheck class list) */ if (filterCheck) filterCheck = filterCheck->nextPtr; for (; filterCheck; filterCheck = filterCheck->nextPtr) { FilterRemoveDependentFilterCmds(cl, filterCheck->cl); } /* invalidate all interceptors orders of instances of this and of all depended classes */ MixinInvalidateObjOrders(interp, cl); FilterInvalidateObjOrders(interp, cl); scl = NEW_ARRAY(XOTclClass*, oc); for (i = 0; i < oc; i++) { if (GetClassFromObj(interp, ov[i], &scl[i], base) != TCL_OK) { FREE(XOTclClass**, scl); return XOTclErrBadVal(interp, "superclass", "a list of classes", ObjStr(arg)); } } /* * check that superclasses don't precede their classes */ for (i = 0; i < oc; i++) { if (reversed) break; for (j = i+1; j < oc; j++) { XOTclClasses *dl = ComputeOrder(scl[j], scl[j]->order, Super); if (reversed) break; while (dl) { if (dl->cl == scl[i]) break; dl = dl->nextPtr; } if (dl) reversed = 1; } } if (reversed) { return XOTclErrBadVal(interp, "superclass", "classes in dependence order", ObjStr(arg)); } while (cl->super) { /* * build up an old superclass list in case we need to revert */ XOTclClass *sc = cl->super->cl; XOTclClasses *l = osl; osl = NEW(XOTclClasses); osl->cl = sc; osl->nextPtr = l; (void)RemoveSuper(cl, cl->super->cl); } for (i=0; i < oc; i++) { AddSuper(cl, scl[i]); } FREE(XOTclClass**, scl); FlushPrecedencesOnSubclasses(cl); if (!ComputeOrder(cl, cl->order, Super)) { /* * cycle in the superclass graph, backtrack */ XOTclClasses *l; while (cl->super) (void)RemoveSuper(cl, cl->super->cl); for (l = osl; l; l = l->nextPtr) AddSuper(cl, l->cl); XOTclClassListFree(osl); return XOTclErrBadVal(interp, "superclass", "a cycle-free graph", ObjStr(arg)); } XOTclClassListFree(osl); /* if there are no more super classes add the Object class as superclasses */ if (cl->super == NULL) { fprintf(stderr, "SuperClassAdd super of '%s' is NULL\n", className(cl)); /*AddSuper(cl, RUNTIME_STATE(interp)->theObject);*/ } Tcl_ResetResult(interp); return TCL_OK; } extern Tcl_Obj * XOTcl_ObjSetVar2(XOTcl_Object *obj, Tcl_Interp *interp, Tcl_Obj *name1, Tcl_Obj *name2, Tcl_Obj *value, int flgs) { Tcl_Obj *result; XOTcl_FrameDecls; XOTcl_PushFrameObj(interp, (XOTclObject*)obj); if (((XOTclObject*)obj)->nsPtr) flgs |= TCL_NAMESPACE_ONLY; result = Tcl_ObjSetVar2(interp, name1, name2, value, flgs); XOTcl_PopFrameObj(interp, (XOTclObject*)obj); return result; } extern Tcl_Obj * XOTcl_SetVar2Ex(XOTcl_Object *obj, Tcl_Interp *interp, CONST char *name1, CONST char *name2, Tcl_Obj *value, int flgs) { Tcl_Obj *result; XOTcl_FrameDecls; XOTcl_PushFrameObj(interp, (XOTclObject*)obj); if (((XOTclObject*)obj)->nsPtr) flgs |= TCL_NAMESPACE_ONLY; result = Tcl_SetVar2Ex(interp, name1, name2, value, flgs); XOTcl_PopFrameObj(interp, (XOTclObject*)obj); return result; } Tcl_Obj * XOTclOSetInstVar(XOTcl_Object *obj, Tcl_Interp *interp, Tcl_Obj *name, Tcl_Obj *value, int flgs) { return XOTcl_ObjSetVar2(obj, interp, name, (Tcl_Obj *)NULL, value, (flgs|TCL_PARSE_PART1)); } extern Tcl_Obj * XOTcl_ObjGetVar2(XOTcl_Object *obj, Tcl_Interp *interp, Tcl_Obj *name1, Tcl_Obj *name2, int flgs) { Tcl_Obj *result; XOTcl_FrameDecls; XOTcl_PushFrameObj(interp, (XOTclObject*)obj); if (((XOTclObject*)obj)->nsPtr) flgs |= TCL_NAMESPACE_ONLY; result = Tcl_ObjGetVar2(interp, name1, name2, flgs); XOTcl_PopFrameObj(interp, (XOTclObject*)obj); return result; } extern Tcl_Obj * XOTcl_GetVar2Ex(XOTcl_Object *obj, Tcl_Interp *interp, CONST char *name1, CONST char *name2, int flgs) { Tcl_Obj *result; XOTcl_FrameDecls; XOTcl_PushFrameObj(interp, (XOTclObject*)obj); if (((XOTclObject*)obj)->nsPtr) flgs |= TCL_NAMESPACE_ONLY; result = Tcl_GetVar2Ex(interp, name1, name2, flgs); XOTcl_PopFrameObj(interp, (XOTclObject*)obj); return result; } Tcl_Obj * XOTclOGetInstVar(XOTcl_Object *obj, Tcl_Interp *interp, Tcl_Obj *name, int flgs) { return XOTcl_ObjGetVar2(obj, interp, name, (Tcl_Obj *)NULL, (flgs|TCL_PARSE_PART1)); } int XOTclUnsetInstVar(XOTcl_Object *obj, Tcl_Interp *interp, char *name, int flgs) { return XOTclUnsetInstVar2 (obj, interp, name, (char *)NULL, flgs); } static int varExists(Tcl_Interp *interp, XOTclObject *obj, CONST char *varName, char *index, int triggerTrace, int requireDefined) { XOTcl_FrameDecls; Var *varPtr, *arrayPtr; int result; int flags = 0; flags = (index == NULL) ? TCL_PARSE_PART1 : 0; XOTcl_PushFrameObj(interp, obj); if (triggerTrace) varPtr = TclVarTraceExists(interp, varName); else varPtr = TclLookupVar(interp, varName, index, flags, "access", /*createPart1*/ 0, /*createPart2*/ 0, &arrayPtr); /* fprintf(stderr, "varExists %s varPtr %p requireDefined %d, triggerTrace %d, isundef %d\n", varName, varPtr, requireDefined, triggerTrace, varPtr ? TclIsVarUndefined(varPtr) : 0); */ result = (varPtr && (!requireDefined || !TclIsVarUndefined(varPtr))); XOTcl_PopFrameObj(interp, obj); return result; } static int SubstValue(Tcl_Interp *interp, XOTclObject *obj, Tcl_Obj **value) { Tcl_Obj *ov[2]; int result; ov[1] = *value; Tcl_ResetResult(interp); #if !defined(TCL85STACK) if (obj) { CallStackPush(interp, obj, NULL, 0, XOTCL_CSC_TYPE_PLAIN); } #endif result = XOTcl_SubstObjCmd(NULL, interp, 2, ov); #if !defined(TCL85STACK) if (obj) { CallStackPop(interp, NULL); } #endif /*fprintf(stderr, "+++++ %s.%s subst returned %d OK %d\n", objectName(obj), varName, rc, TCL_OK);*/ if (result == TCL_OK) { *value = Tcl_GetObjResult(interp); } return result; } #if !defined(PRE85) # if defined(WITH_TCL_COMPILE) # include # endif #if defined(PRE86) # define Tcl_GetErrorLine(interp) (interp)->errorLine #endif static void MakeProcError( Tcl_Interp *interp, /* The interpreter in which the procedure was called. */ Tcl_Obj *procNameObj) /* Name of the procedure. Used for error * messages and trace information. */ { int overflow, limit = 60, nameLen; const char *procName = Tcl_GetStringFromObj(procNameObj, &nameLen); overflow = (nameLen > limit); Tcl_AppendObjToErrorInfo(interp, Tcl_ObjPrintf( "\n (procedure \"%.*s%s\" line %d)", (overflow ? limit : nameLen), procName, (overflow ? "..." : ""), Tcl_GetErrorLine(interp))); } static int ByteCompiled(register Tcl_Interp *interp, Proc *procPtr, char *body) { static Tcl_ObjType CONST86 *byteCodeType = NULL; Tcl_Obj *bodyPtr = procPtr->bodyPtr; Namespace *nsPtr = procPtr->cmdPtr->nsPtr; if (byteCodeType == NULL) { static XOTclMutex initMutex = 0; XOTclMutexLock(&initMutex); if (byteCodeType == NULL) { byteCodeType = Tcl_GetObjType("bytecode"); } XOTclMutexUnlock(&initMutex); } if (bodyPtr->typePtr == byteCodeType) { # if defined(HAVE_TCL_COMPILE_H) ByteCode *codePtr; Interp *iPtr = (Interp *) interp; /* * When we've got bytecode, this is the check for validity. That is, * the bytecode must be for the right interpreter (no cross-leaks!), * the code must be from the current epoch (so subcommand compilation * is up-to-date), the namespace must match (so variable handling * is right) and the resolverEpoch must match (so that new shadowed * commands and/or resolver changes are considered). */ codePtr = bodyPtr->internalRep.otherValuePtr; if (((Interp *) *codePtr->interpHandle != iPtr) || (codePtr->compileEpoch != iPtr->compileEpoch) || (codePtr->nsPtr != nsPtr) || (codePtr->nsEpoch != nsPtr->resolverEpoch)) { goto doCompilation; } return TCL_OK; # endif } else { # if defined(HAVE_TCL_COMPILE_H) doCompilation: # endif return TclProcCompileProc(interp, procPtr, bodyPtr, (Namespace *) nsPtr, "body of proc", body); } } /* PushProcCallFrame() compiles conditionally a proc and pushes a callframe. Interesting fields: clientData: Record describing procedure to be interpreted. isLambda: 1 if this is a call by ApplyObjCmd: it needs special rules for error msg */ static int PushProcCallFrame(ClientData clientData, register Tcl_Interp *interp, int objc, Tcl_Obj *CONST objv[], XOTclCallStackContent *cscPtr) { Proc *procPtr = (Proc *) clientData; CallFrame *framePtr; int result; /* * Set up and push a new call frame for the new procedure invocation. * This call frame will execute in the proc's namespace, which might be * different than the current namespace. The proc's namespace is that of * its command, which can change if the command is renamed from one * namespace to another. */ #if defined(TCL85STACK_TRACE) fprintf(stderr, "PUSH METHOD_FRAME (PushProcCallFrame) csc %p %s obj %s obj refcount %d\n", cscPtr, cscPtr ? Tcl_GetCommandName(interp, cscPtr->cmdPtr) : NULL, objectName(cscPtr->self), cscPtr && cscPtr->self->id ? Tcl_Command_refCount(cscPtr->self->id) : -100 ); #endif /* TODO: we could use Tcl_PushCallFrame(), if we would allocate the tcl stack frame earlier */ result = TclPushStackFrame(interp, (Tcl_CallFrame **)&framePtr, (Tcl_Namespace *) procPtr->cmdPtr->nsPtr, (FRAME_IS_PROC|FRAME_IS_XOTCL_METHOD)); if (result != TCL_OK) { return result; } framePtr->objc = objc; framePtr->objv = objv; framePtr->procPtr = procPtr; #if defined(TCL85STACK_TRACE) fprintf(stderr, " put csc %p into frame %p flags %.4x\n", cscPtr, framePtr, framePtr->isProcCallFrame); #endif framePtr->clientData = (ClientData)cscPtr; return ByteCompiled(interp, procPtr, TclGetString(objv[0])); } #endif static void getVarAndNameFromHash(Tcl_HashEntry *hPtr, Var **val, Tcl_Obj **varNameObj) { *val = VarHashGetValue(hPtr); #if defined(PRE85) # if FORWARD_COMPATIBLE if (forwardCompatibleMode) { *varNameObj = VarHashGetKey(*val); } else { *varNameObj = Tcl_NewStringObj(Tcl_GetHashKey(hPtr->tablePtr, hPtr),-1); } # else *varNameObj = Tcl_NewStringObj(Tcl_GetHashKey(hPtr->tablePtr, hPtr),-1); # endif #else *varNameObj = VarHashGetKey(*val); #endif } static void ParamDefsFree(XOTclParamDefs *paramDefs); void XOTclProcDeleteProc(ClientData clientData) { XOTclProcContext *ctxPtr = (XOTclProcContext *)clientData; (*ctxPtr->oldDeleteProc)(ctxPtr->oldDeleteData); if (ctxPtr->paramDefs) { /*fprintf(stderr, "free ParamDefs %p\n", ctxPtr->paramDefs);*/ ParamDefsFree(ctxPtr->paramDefs); } /*fprintf(stderr, "free %p\n", ctxPtr);*/ FREE(XOTclProcContext, ctxPtr); } static XOTclParam *ParamsNew(int nr) { XOTclParam *paramsPtr = NEW_ARRAY(XOTclParam, nr+1); memset(paramsPtr, 0, sizeof(XOTclParam)*(nr+1)); return paramsPtr; } static void ParamsFree(XOTclParam *paramsPtr) { XOTclParam *paramPtr; /*fprintf(stderr, "ParamsFree %p\n", paramsPtr);*/ for (paramPtr=paramsPtr; paramPtr->name; paramPtr++) { /*fprintf(stderr, ".... paramPtr = %p, name=%s, defaultValue %p\n", paramPtr, paramPtr->name, paramPtr->defaultValue);*/ if (paramPtr->name) ckfree(paramPtr->name); if (paramPtr->nameObj) {DECR_REF_COUNT(paramPtr->nameObj);} if (paramPtr->defaultValue) {DECR_REF_COUNT(paramPtr->defaultValue);} if (paramPtr->arg) {DECR_REF_COUNT(paramPtr->arg);} if (paramPtr->converterArg) {DECR_REF_COUNT(paramPtr->converterArg);} } FREE(XOTclParam*, paramsPtr); } static XOTclParamDefs * ParamDefsGet(Tcl_Command cmdPtr) { if (Tcl_Command_deleteProc(cmdPtr) == XOTclProcDeleteProc) { return ((XOTclProcContext *)Tcl_Command_deleteData(cmdPtr))->paramDefs; } return NULL; } static int ParamDefsStore(Tcl_Interp *interp, Tcl_Command cmd, XOTclParamDefs *paramDefs) { Command *cmdPtr = (Command *)cmd; if (cmdPtr->deleteProc == TclProcDeleteProc) { XOTclProcContext *ctxPtr = NEW(XOTclProcContext); /*fprintf(stderr, "paramDefsStore replace deleteProc %p by %p\n", cmdPtr->deleteProc, XOTclProcDeleteProc);*/ ctxPtr->oldDeleteData = (Proc *)cmdPtr->deleteData; ctxPtr->oldDeleteProc = cmdPtr->deleteProc; cmdPtr->deleteProc = XOTclProcDeleteProc; ctxPtr->paramDefs = paramDefs; cmdPtr->deleteData = (ClientData)ctxPtr; return TCL_OK; } return TCL_ERROR; } static void ParamDefsFree(XOTclParamDefs *paramDefs) { /*fprintf(stderr, "ParamDefsFree %p\n", paramDefs);*/ if (paramDefs->paramsPtr) { ParamsFree(paramDefs->paramsPtr); } FREE(XOTclParamDefs, paramDefs); } /* * Non Positional Parameter */ static void ParamDefsFormatOption(Tcl_Interp *interp, Tcl_Obj *nameStringObj, char* option, int *colonWritten, int *firstOption) { if (!*colonWritten) { Tcl_AppendToObj(nameStringObj, ":", 1); *colonWritten = 1; } if (*firstOption) { *firstOption = 0; } else { Tcl_AppendToObj(nameStringObj, ",", 1); } Tcl_AppendToObj(nameStringObj, option, -1); } static int convertToNothing(Tcl_Interp *interp, Tcl_Obj *objPtr, struct XOTclParam CONST *pPtr, ClientData *clientData); static Tcl_Obj * ParamDefsFormat(Tcl_Interp *interp, XOTclParamDefs *paramDefs) { int first, colonWritten; Tcl_Obj *list = Tcl_NewListObj(0, NULL), *innerlist, *nameStringObj; XOTclParam CONST *pPtr; for (pPtr = paramDefs->paramsPtr; pPtr->name; pPtr++) { int isNonpos = *pPtr->name == '-'; int outputRequired = (isNonpos && (pPtr->flags & XOTCL_ARG_REQUIRED)); int outputOptional = (!isNonpos && !(pPtr->flags & XOTCL_ARG_REQUIRED) && !pPtr->defaultValue && pPtr->converter != convertToNothing); first = 1; colonWritten = 0; nameStringObj = Tcl_NewStringObj(pPtr->name, -1); if (pPtr->type) { ParamDefsFormatOption(interp, nameStringObj, pPtr->type, &colonWritten, &first); } if (outputRequired) { ParamDefsFormatOption(interp, nameStringObj, "required", &colonWritten, &first); } else if (outputOptional) { ParamDefsFormatOption(interp, nameStringObj, "optional", &colonWritten, &first); } if ((pPtr->flags & XOTCL_ARG_SUBST_DEFAULT)) { ParamDefsFormatOption(interp, nameStringObj, "substdefault", &colonWritten, &first); } if ((pPtr->flags & XOTCL_ARG_INITCMD)) { ParamDefsFormatOption(interp, nameStringObj, "initcmd", &colonWritten, &first); } else if ((pPtr->flags & XOTCL_ARG_METHOD)) { ParamDefsFormatOption(interp, nameStringObj, "method", &colonWritten, &first); } else if ((pPtr->flags & XOTCL_ARG_NOARG)) { ParamDefsFormatOption(interp, nameStringObj, "noarg", &colonWritten, &first); } innerlist = Tcl_NewListObj(0, NULL); Tcl_ListObjAppendElement(interp, innerlist, nameStringObj); if (pPtr->defaultValue) { Tcl_ListObjAppendElement(interp, innerlist, pPtr->defaultValue); } Tcl_ListObjAppendElement(interp, list, innerlist); } return list; } static Tcl_Obj * ParamDefsList(Tcl_Interp *interp, XOTclParamDefs *paramDefs) { Tcl_Obj *list = Tcl_NewListObj(0, NULL); XOTclParam CONST *pPtr; for (pPtr = paramDefs->paramsPtr; pPtr->name; pPtr++) { Tcl_ListObjAppendElement(interp, list, pPtr->nameObj); } return list; } static void ParsedParamFree(XOTclParsedParam *parsedParamPtr) { /*fprintf(stderr, "ParsedParamFree %p, npargs %p\n", parsedParamPtr, parsedParamPtr->paramDefs);*/ if (parsedParamPtr->paramDefs) { ParamDefsFree(parsedParamPtr->paramDefs); } FREE(XOTclParsedParam, parsedParamPtr); } /* * method dispatch */ #if defined(NRE) static int FinalizeProcMethod(ClientData data[], Tcl_Interp *interp, int result) { parseContext *pcPtr = data[0]; XOTclCallStackContent *cscPtr = data[1]; char *methodName = data[2]; XOTclObject *obj = cscPtr->self; XOTclObjectOpt *opt = obj->opt; int rc; /*fprintf(stderr, "---- FinalizeProcMethod result %d, csc %p, pcPtr %p, obj %p\n", result, cscPtr, pcPtr, obj);*/ # if defined(TCL85STACK_TRACE) fprintf(stderr, "POP FRAME (implicit) csc %p obj %s obj refcount %d %d\n", cscPtr, objectName(obj), obj->id ? Tcl_Command_refCount(obj->id) : -100, obj->refCount ); # endif opt = obj->opt; if (opt && obj->teardown && (opt->checkoptions & CHECK_POST)) { /* even, when the passed result != TCL_OK, run assertion to report * the highest possible method from the callstack (e.g. "set" would not * be very meaningful; however, do not flush a TCL_ERROR. */ rc = AssertionCheck(interp, obj, cscPtr->cl, methodName, CHECK_POST); if (result == TCL_OK) { result = rc; } } if (pcPtr) { # if defined(TCL_STACK_ALLOC_TRACE) fprintf(stderr, "---- FinalizeProcMethod calls releasePc, stackFree %p\n", pcPtr); # endif parseContextRelease(pcPtr); TclStackFree(interp, pcPtr); } # if defined(TCL_STACK_ALLOC_TRACE) fprintf(stderr, "---- FinalizeProcMethod calls pop, csc free %p method %s\n", cscPtr, methodName); # endif CallStackPop(interp, cscPtr); TclStackFree(interp, cscPtr); return result; } #endif /* invoke a scripted method (with assertion checking) */ static int ProcMethodDispatch(ClientData cp, Tcl_Interp *interp, int objc, Tcl_Obj *CONST objv[], char *methodName, XOTclObject *obj, XOTclClass *cl, Tcl_Command cmdPtr, XOTclCallStackContent *cscPtr) { int result, releasePc = 0; XOTclObjectOpt *opt = obj->opt; #if defined(NRE) parseContext *pcPtr = NULL; #else parseContext pc, *pcPtr = &pc; #endif #if defined(PRE85) XOTcl_FrameDecls; #endif assert(obj); assert(!obj->teardown); #if defined(TCL85STACK_TRACE) fprintf(stderr, "+++ ProcMethodDispatch %s, cscPtr %p, frametype %d, teardown %p\n", methodName, cscPtr, cscPtr->frameType, obj->teardown); #endif /* * if this is a filter, check whether its guard applies, * if not: just step forward to the next filter */ if (cscPtr->frameType == XOTCL_CSC_TYPE_ACTIVE_FILTER) { XOTclCmdList *cmdList; /* * seek cmd in obj's filterOrder */ assert(obj->flags & XOTCL_FILTER_ORDER_VALID); /* otherwise: FilterComputeDefined(interp, obj);*/ for (cmdList = obj->filterOrder; cmdList && cmdList->cmdPtr != cmdPtr; cmdList = cmdList->nextPtr); if (cmdList) { /* * A filter was found, check whether it has a guard. */ result = GuardCall(obj, cl, (Tcl_Command) cmdList->cmdPtr, interp, cmdList->clientData, cscPtr); if (result != TCL_OK) { /*fprintf(stderr, "Filter GuardCall in invokeProc returned %d\n", result);*/ if (result != TCL_ERROR) { /* * The guard failed (but no error); call "next", use the * actual objv's, not the callstack objv, since we may not * be in a method resulting in invalid callstackobjs. * * The call stack content is not jet pushed to the Tcl * stack, so we pass it here explicitly. */ /*fprintf(stderr, "... calling nextmethod cscPtr %p\n", cscPtr);*/ result = XOTclNextMethod(obj, interp, cl, methodName, objc, objv, /*useCallStackObjs*/ 0, cscPtr); /*fprintf(stderr, "... after nextmethod result %d\n", result);*/ } #if defined(NRE) # if defined(TCL_STACK_ALLOC_TRACE) fprintf(stderr, "---- GuardFailed calls pop, cscPtr free %p method %s\n", cscPtr, methodName); # endif CallStackPop(interp, cscPtr); TclStackFree(interp, cscPtr); /* todo check mixin guards for same case? */ #endif return result; } } } if (opt && (opt->checkoptions & CHECK_PRE) && (result = AssertionCheck(interp, obj, cl, methodName, CHECK_PRE)) == TCL_ERROR) { goto finish; } #ifdef DISPATCH_TRACE printCall(interp, "ProcMethodDispatch", objc, objv); fprintf(stderr, "\tproc=%s\n", Tcl_GetCommandName(interp, cmdPtr)); #endif /* * In case, we have Tcl 8.5.* or better, we can avoid calling the * standard TclObjInterpProc() and ::xotcl::initProcNS defined in * the method, since Tcl 8.5 has a separate functions * PushProcCallFrame() and TclObjInterpProcCore(), where the * latter is callable from the outside (e.g. from XOTcl). This new * interface allows us to setup the XOTcl callframe before the * bytecode of the method body (provisioned by PushProcCallFrame) * is executed for tcl 8.4 versions. */ #if !defined(PRE85) /*fprintf(stderr, "\tproc=%s cp=%p %d\n", Tcl_GetCommandName(interp, cmd), cp, isTclProc);*/ # if defined(CANONICAL_ARGS) /* If the method to be invoked hasparamDefs, we have to call the argument parser with the argument definitions obtained from the proc context from the cmdPtr. */ { XOTclParamDefs *paramDefs = Tcl_Command_deleteProc(cmdPtr) == XOTclProcDeleteProc ? ((XOTclProcContext *)Tcl_Command_deleteData(cmdPtr))->paramDefs : NULL; if (paramDefs) { #if defined(NRE) pcPtr = (parseContext *) TclStackAlloc(interp, sizeof(parseContext)); # if defined(TCL_STACK_ALLOC_TRACE) fprintf(stderr, "---- parseContext alloc %p\n", pcPtr); # endif #endif result = ProcessMethodArguments(pcPtr, interp, obj, 1, paramDefs, methodName, objc, objv); cscPtr->objc = objc; cscPtr->objv = (Tcl_Obj **)objv; if (result == TCL_OK) { releasePc = 1; result = PushProcCallFrame(cp, interp, pcPtr->objc, pcPtr->full_objv, cscPtr); } } else { result = PushProcCallFrame(cp, interp, objc, objv, cscPtr); } } # else /* no CANONICAL ARGS */ result = PushProcCallFrame(cp, interp, objc, objv, cscPtr); # endif /* we could consider to run here ARGS_METHO or INITCMD if (result == TCL_OK) { } */ if (result != TCL_OK) { #if defined(NRE) if (pcPtr) TclStackFree(interp, pcPtr); # if defined(TCL_STACK_ALLOC_TRACE) fprintf(stderr, "---- ProcPrep fails and calls pop, cscPtr free %p method %s\n", cscPtr, methodName); # endif CallStackPop(interp, cscPtr); TclStackFree(interp, cscPtr); #endif } /* * The stack frame is pushed, we could do something here before * running the byte code of the body. */ if (result == TCL_OK) { #if !defined(TCL85STACK) RUNTIME_STATE(interp)->cs.top->currentFramePtr = (Tcl_CallFrame *) Tcl_Interp_varFramePtr(interp); #endif #if !defined(NRE) result = TclObjInterpProcCore(interp, objv[0], 1, &MakeProcError); if (releasePc) { parseContextRelease(&pc); } #else { TEOV_callback *rootPtr = TOP_CB(interp); /*fprintf(stderr, "CALL TclNRInterpProcCore %s method '%s'\n", objectName(obj), ObjStr(objv[0]));*/ Tcl_NRAddCallback(interp, FinalizeProcMethod, releasePc ? pcPtr : NULL, cscPtr, methodName, NULL); result = TclNRInterpProcCore(interp, objv[0], 1, &MakeProcError); /*fprintf(stderr, ".... run callbacks rootPtr = %p, result %d methodName %s\n", rootPtr, result, methodName);*/ result = TclNRRunCallbacks(interp, result, rootPtr, 0); /*fprintf(stderr, ".... run callbacks DONE result %d methodName %s\n", result, methodName);*/ } #endif } # if defined(TCL85STACK_TRACE) fprintf(stderr, "POP OBJECT_FRAME (implicit) frame %p cscPtr %p obj %s obj refcount %d %d\n", NULL, cscPtr, objectName(obj), obj->id ? Tcl_Command_refCount(obj->id) : -100, obj->refCount ); # endif #else /* BEFORE TCL85 */ result = (*Tcl_Command_objProc(cmdPtr))(cp, interp, objc, objv); #endif #if defined(PRE86) # ifdef DISPATCH_TRACE printExit(interp, "ProcMethodDispatch", objc, objv, result); /* fprintf(stderr, " returnCode %d xotcl rc %d\n", Tcl_Interp_returnCode(interp), result);*/ # endif opt = obj->opt; if (opt && obj->teardown && (opt->checkoptions & CHECK_POST)) { int rc = AssertionCheck(interp, obj, cscPtr->cl, methodName, CHECK_POST); /* don't clobber error codes */ if (result == TCL_OK) { result = rc; } } #endif finish: return result; } /* Invoke a method implemented as a cmd (with assertion checking) */ static int CmdMethodDispatch(ClientData cp, Tcl_Interp *interp, int objc, Tcl_Obj *CONST objv[], char *methodName, XOTclObject *obj, Tcl_Command cmdPtr, XOTclCallStackContent *cscPtr) { CheckOptions co; int result; #if defined(TCL85STACK) XOTcl_FrameDecls; #endif assert(obj); assert(!obj->teardown); #if defined(TCL85STACK_TRACE) fprintf(stderr, "+++ CmdMethodDispatchCheck %s, obj %p %s, cscPtr %p, teardown %p\n", methodName, obj, objectName(obj), cscPtr, obj->teardown); #endif /* fprintf(stderr, ".. calling cmd %s cscPtr %p\n", methodName, cscPtr);*/ if (obj->opt) { co = obj->opt->checkoptions; if ((co & CHECK_INVAR) && ((result = AssertionCheckInvars(interp, obj, methodName, co)) == TCL_ERROR)) { goto finish; } } #if defined(TCL85STACK) if (cscPtr) { /* We have a call stack content, but the following dispatch will * by itself not stack it; in order to get e.g. self working, we * have to stack at least an FRAME_IS_XOTCL_OBJECT. * TODO: maybe push should happen already before assertion checking, * but we have to check what happens in the finish target etc. */ /*fprintf(stderr, "XOTcl_PushFrameCsc %s %s\n",objectName(obj), methodName);*/ XOTcl_PushFrameCsc(interp, obj, cscPtr); } #endif #ifdef DISPATCH_TRACE printCall(interp, "CmdMethodDispatch cmd", objc, objv); fprintf(stderr, "\tcmd=%s\n", Tcl_GetCommandName(interp, cmdPtr)); #endif /*fprintf(stderr, "CmdDispatch obj %p %p %s\n", obj, methodName, methodName);*/ #if !defined(NRE) result = (*Tcl_Command_objProc(cmdPtr))(cp, interp, objc, objv); #else result = Tcl_NRCallObjProc(interp, Tcl_Command_objProc(cmdPtr), cp, objc, objv); #endif #ifdef DISPATCH_TRACE printExit(interp, "CmdMethodDispatch cmd", objc, objv, result); #endif #if defined(TCL85STACK) if (cscPtr) { XOTcl_PopFrameCsc(interp, obj); } #endif /* Reference counting in the calling ObjectDispatch() makes sure that obj->opt is still accessible even after "dealloc" */ if (obj->opt) { co = obj->opt->checkoptions; if ((co & CHECK_INVAR) && ((result = AssertionCheckInvars(interp, obj, methodName, co)) == TCL_ERROR)) { goto finish; } } finish: return result; } #if defined(PROFILE) static int MethodDispatch(ClientData clientData, Tcl_Interp *interp, int objc, Tcl_Obj *CONST objv[], Tcl_Command cmd, XOTclObject *obj, XOTclClass *cl, char *methodName, int frameType) { struct timeval trt; long int startUsec = (gettimeofday(&trt, NULL), trt.tv_usec), startSec = trt.tv_sec; result = __MethodDispatch__(clientData, interp, objc, objv, cmd, obj, cl, methodName, frameType); XOTclProfileEvaluateData(interp, startSec, startUsec, obj, cl, methodName); return result; } # define MethodDispatch __MethodDispatch__ #endif /* * MethodDispatch() calls an XOTcl method. It calls either a * Tcl-implemented method (via ProcMethodDispatch()) or a C-implemented * method (via CmdMethodDispatch()) and sets up stack and client data * accordingly. */ static int MethodDispatch(ClientData clientData, Tcl_Interp *interp, int objc, Tcl_Obj *CONST objv[], Tcl_Command cmd, XOTclObject *obj, XOTclClass *cl, char *methodName, int frameType) { ClientData cp = Tcl_Command_objClientData(cmd); XOTclCallStackContent csc, *cscPtr; register Tcl_ObjCmdProc *proc = Tcl_Command_objProc(cmd); int result; assert (!obj->teardown); /*fprintf(stderr, "MethodDispatch method '%s' cmd %p cp=%p objc=%d\n", methodName, cmd, cp, objc);*/ if (proc == TclObjInterpProc) { /* The cmd is a scripted method */ #if defined(NRE) cscPtr = (XOTclCallStackContent *) TclStackAlloc(interp, sizeof(XOTclCallStackContent)); # if defined(TCL_STACK_ALLOC_TRACE) fprintf(stderr, "---- csc alloc %p method %s\n", cscPtr, methodName); # endif #else cscPtr = &csc; #endif #if defined(TCL85STACK) CallStackPush(cscPtr, obj, cl, cmd, frameType); #else if (!(cscPtr = CallStackPush(interp, obj, cl, cmd, frameType))) return TCL_ERROR; #endif result = ProcMethodDispatch(cp, interp, objc, objv, methodName, obj, cl, cmd, cscPtr); #if defined(NRE) /* CallStackPop() is performed by the callbacks or in error case base ProcMethodDispatch */ /*fprintf(stderr, "no pop for %s\n", methodName);*/ #else CallStackPop(interp, cscPtr); #endif return result; } else if (cp || Tcl_Command_flags(cmd) & XOTCL_CMD_NONLEAF_METHOD) { /* The cmd has client data or is an aliased method */ cscPtr = &csc; /*fprintf(stderr, "we could stuff obj %p %s\n", obj, objectName(obj));*/ if (proc == XOTclObjDispatch) { /* * invoke an aliased object via method interface */ XOTclObject *invokeObj = (XOTclObject *)cp; if (invokeObj->flags & XOTCL_DELETED) { /* * when we try to call a deleted object, the cmd (alias) is * automatically removed. */ Tcl_DeleteCommandFromToken(interp, cmd); XOTclCleanupObject(invokeObj); return XOTclVarErrMsg(interp, "Trying to dispatch deleted object via method '", methodName, "'", (char *) NULL); } } else if (proc == XOTclForwardMethod || proc == XOTclObjscopedMethod) { tclCmdClientData *tcd = (tclCmdClientData *)cp; tcd->obj = obj; assert((CmdIsProc(cmd) == 0)); } else if (cp == (ClientData)XOTCL_CMD_NONLEAF_METHOD) { cp = clientData; assert((CmdIsProc(cmd) == 0)); } #if defined(TCL85STACK) CallStackPush(cscPtr, obj, cl, cmd, frameType); #else if (!(cscPtr = CallStackPush(interp, obj, cl, cmd, frameType))) return TCL_ERROR; #endif } else { /* The cmd has no client data */ /*fprintf(stderr, "cmdMethodDispatch %s %s, nothing stacked\n",objectName(obj), methodName);*/ return CmdMethodDispatch(clientData, interp, objc, objv, methodName, obj, cmd, NULL); } result = CmdMethodDispatch(cp, interp, objc, objv, methodName, obj, cmd, cscPtr); /* make sure, that csc is still in the scope; therefore, csc is currently on the top scope of this function */ CallStackPop(interp, cscPtr); return result; } XOTCLINLINE static int ObjectDispatch(ClientData clientData, Tcl_Interp *interp, int objc, Tcl_Obj *CONST objv[], int flags) { register XOTclObject *obj = (XOTclObject*)clientData; int result = TCL_OK, mixinStackPushed = 0, filterStackPushed = 0, unknown = 0, objflags, shift, frameType = XOTCL_CSC_TYPE_PLAIN; char *methodName; XOTclClass *cl = NULL; Tcl_Command cmd = NULL; XOTclRuntimeState *rst = RUNTIME_STATE(interp); Tcl_Obj *cmdName = obj->cmdName, *methodObj, *cmdObj; assert(objc>0); if (flags & XOTCL_CM_NO_SHIFT) { shift = 0; cmdObj = obj->cmdName; methodObj = objv[0]; } else { shift = 1; cmdObj = objv[0]; methodObj = objv[1]; } methodName = ObjStr(methodObj); #if defined(USE_COMPILED_VAR_RESOLVER) if (FOR_RESOLVER(methodName)) { methodName ++; } #endif /*fprintf(stderr, "ObjectDispatch obj = %s objc = %d 0=%s methodName=%s\n", objectName(obj), objc, ObjStr(cmdObj), methodName);*/ #ifdef DISPATCH_TRACE printCall(interp, "DISPATCH", objc, objv); #endif objflags = obj->flags; /* avoid stalling */ /* make sure, cmdName and obj survive this method until the end */ INCR_REF_COUNT(cmdName); obj->refCount ++; if (!(objflags & XOTCL_FILTER_ORDER_VALID)) { FilterComputeDefined(interp, obj); objflags = obj->flags; } if (!(objflags & XOTCL_MIXIN_ORDER_VALID)) { MixinComputeDefined(interp, obj); objflags = obj->flags; } /* Only start new filter chain, if (a) filters are defined and (b) the toplevel csc entry is not an filter on self */ if (((objflags & XOTCL_FILTER_ORDER_DEFINED_AND_VALID) == XOTCL_FILTER_ORDER_DEFINED_AND_VALID) && rst->doFilters && !rst->guardCount) { XOTclCallStackContent *csc = CallStackGetTopFrame(interp, NULL); if (csc && (obj != csc->self || csc->frameType != XOTCL_CSC_TYPE_ACTIVE_FILTER)) { filterStackPushed = FilterStackPush(interp, obj, methodObj); cmd = FilterSearchProc(interp, obj, &obj->filterStack->currentCmdPtr, &cl); if (cmd) { /*fprintf(stderr, "filterSearchProc returned cmd %p proc %p\n", cmd, proc);*/ frameType = XOTCL_CSC_TYPE_ACTIVE_FILTER; methodName = (char *)Tcl_GetCommandName(interp, cmd); } else { FilterStackPop(obj); filterStackPushed = 0; } } } /* check if a mixin is to be called. don't use mixins on next method calls, since normally it is not intercepted (it is used as a primitive command). don't use mixins on init calls, since init is invoked on mixins during mixin registration (in XOTclOMixinMethod) */ if ((objflags & XOTCL_MIXIN_ORDER_DEFINED_AND_VALID) == XOTCL_MIXIN_ORDER_DEFINED_AND_VALID) { mixinStackPushed = MixinStackPush(obj); if (frameType != XOTCL_CSC_TYPE_ACTIVE_FILTER) { result = MixinSearchProc(interp, obj, methodName, &cl, &obj->mixinStack->currentCmdPtr, &cmd); if (result != TCL_OK) { goto exit_dispatch; } if (cmd) { frameType = XOTCL_CSC_TYPE_ACTIVE_MIXIN; } else { /* the else branch could be deleted */ MixinStackPop(obj); mixinStackPushed = 0; } } } /* check if an absolute method name was provided */ if (*methodName == ':') { cmd = Tcl_GetCommandFromObj(interp, methodObj); if (cmd) { CONST char *mn = Tcl_GetCommandName(interp, cmd); if (isClassName(methodName)) { char *className = NSCutXOTclClasses(methodName); Tcl_DString ds, *dsPtr = &ds; DSTRING_INIT(dsPtr); Tcl_DStringAppend(dsPtr, className, strlen(className)-strlen(mn)-2); cl = (XOTclClass *)XOTclpGetObject(interp, Tcl_DStringValue(dsPtr)); DSTRING_FREE(dsPtr); } } } /* if no filter/mixin is found => do ordinary method lookup */ if (cmd == NULL) { /* do we have a object-specific proc? */ if (obj->nsPtr) { cmd = FindMethod(obj->nsPtr, methodName); /* fprintf(stderr, "lookup for proc in obj %p method %s nsPtr %p => %p\n", obj, methodName, obj->nsPtr, cmd);*/ } /*fprintf(stderr, "findMethod for proc '%s' in %p returned %p\n", methodName, obj->nsPtr, cmd);*/ if (cmd == NULL) { /* check for a method */ XOTclClass *currentClass = obj->cl; if (currentClass->order == NULL) currentClass->order = TopoOrder(currentClass, Super); cl = SearchPLMethod(currentClass->order, methodName, &cmd); } } if (cmd) { result = TCL_OK; /*fprintf(stderr, "cmd %p %s flags %x\n", cmd, methodName, ((Command *) cmd)->flags && 0x00010000);*/ /* check, whether we have a protected method, and whether the protected method, called on a different object. In this case, we call as well the unknown method */ if ((Tcl_Command_flags(cmd) & XOTCL_CMD_PROTECTED_METHOD) && (flags & (XOTCL_CM_NO_UNKNOWN|XOTCL_CM_NO_PROTECT)) == 0) { XOTclObject *o, *lastSelf = GetSelfObj(interp); /* we do not want to rely on clientData, so get obj from cmdObj */ GetObjectFromObj(interp, cmdObj, &o); if (o != lastSelf) { /*fprintf(stderr, "+++ protected method %s is not invoked\n", methodName);*/ /* allow unknown-handler to handle this case */ unknown = 1; fprintf(stderr, "+++ %s is protected, therefore maybe unknown %p %s lastself=%p o=%p cd %p flags = %.6x\n", methodName, cmdObj, ObjStr(cmdObj), lastSelf, o, clientData, flags); /*tcl85showStack(interp);*/ } } if (!unknown) { /*fprintf(stderr, "ObjectDispatch calls MethodDispatch with obj = %s frameType %d method %s\n", objectName(obj), frameType, methodName);*/ if ((result = MethodDispatch(clientData, interp, objc-shift, objv+shift, cmd, obj, cl, methodName, frameType)) == TCL_ERROR) { /*fprintf(stderr, "Call ErrInProc cl = %p, cmd %p, flags %.6x\n", cl, cl ? cl->object.id : 0, cl ? cl->object.flags : 0);*/ result = XOTclErrInProc(interp, cmdName, cl && cl->object.teardown ? cl->object.cmdName : NULL, methodName); } unknown = rst->unknown; } } else { unknown = 1; } /*fprintf(stderr, "cmd %p unknown %d result %d\n", cmd, unknown, result);*/ if (result == TCL_OK) { /*fprintf(stderr, "after doCallProcCheck unknown == %d\n", unknown);*/ if (unknown) { Tcl_Obj *unknownObj = XOTclGlobalObjects[XOTE_UNKNOWN]; if (/*XOTclObjectIsClass(obj) &&*/ (flags & XOTCL_CM_NO_UNKNOWN)) { result = XOTclVarErrMsg(interp, objectName(obj), ": unable to dispatch method '", methodName, "'", (char *) NULL); goto exit_dispatch; } else if (methodObj != unknownObj) { /* * back off and try unknown; */ XOTclObject *obj = (XOTclObject*)clientData; ALLOC_ON_STACK(Tcl_Obj*, objc+2, tov); /*fprintf(stderr, "calling unknown for %s %s, flgs=%02x,%02x isClass=%d %p %s objc %d shift %d\n", objectName(obj), methodName, flags, XOTCL_CM_NO_UNKNOWN, XOTclObjectIsClass(obj), obj, objectName(obj), objc, shift);*/ tov[0] = obj->cmdName; tov[1] = unknownObj; if (objc-shift>0) { memcpy(tov+2, objv+shift, sizeof(Tcl_Obj *)*(objc-shift)); } /* fprintf(stderr, "?? %s unknown %s\n", objectName(obj), ObjStr(tov[2])); */ flags &= ~XOTCL_CM_NO_SHIFT; result = ObjectDispatch(clientData, interp, objc+2-shift, tov, flags | XOTCL_CM_NO_UNKNOWN); FREE_ON_STACK(tov); } else { /* unknown failed */ result = XOTclVarErrMsg(interp, objectName(obj), ": unable to dispatch method '", ObjStr(objv[shift+1]), "'", (char *) NULL); goto exit_dispatch; } } } /* be sure to reset unknown flag */ if (unknown) rst->unknown = 0; exit_dispatch: #ifdef DISPATCH_TRACE printExit(interp, "DISPATCH", objc, objv, result); #endif if (mixinStackPushed && obj->mixinStack) MixinStackPop(obj); if (filterStackPushed && obj->filterStack) FilterStackPop(obj); XOTclCleanupObject(obj); DECR_REF_COUNT(cmdName); /* must be after last dereferencing of obj */ return result; } int XOTclObjDispatch(ClientData clientData, Tcl_Interp *interp, int objc, Tcl_Obj *CONST objv[]) { int result; #ifdef STACK_TRACE XOTclStackDump(interp); #endif #ifdef CALLSTACK_TRACE XOTclCallStackDump(interp); #endif if (objc > 1) { /* normal dispatch */ result = ObjectDispatch(clientData, interp, objc, objv, 0); } else { Tcl_Obj *tov[2]; tov[0] = objv[0]; tov[1] = XOTclGlobalObjects[XOTE_DEFAULTMETHOD]; result = ObjectDispatch(clientData, interp, 2, tov, XOTCL_CM_NO_UNKNOWN); } return result; } #ifdef XOTCL_BYTECODE int XOTclDirectSelfDispatch(ClientData clientData, Tcl_Interp *interp, int objc, Tcl_Obj *CONST objv[]) { int result; #ifdef XOTCLOBJ_TRACE XOTclObject *obj; #endif objTrace("BEFORE SELF DISPATCH", obj); result = XOTclObjDispatch((ClientData)GetSelfObj(interp), interp, objc, objv); objTrace("AFTER SELF DISPATCH", obj); return result; } #endif /* * Proc-Creation */ static Tcl_Obj *addPrefixToBody(Tcl_Obj *body, int paramDefs, XOTclParsedParam *paramPtr) { Tcl_Obj *resultBody = Tcl_NewStringObj("", 0); INCR_REF_COUNT(resultBody); #if defined(PRE85) Tcl_AppendStringsToObj(resultBody, "::xotcl::initProcNS\n", (char *) NULL); if (paramDefs) Tcl_AppendStringsToObj(resultBody, "::eval ::xotcl::interpretNonpositionalArgs $args\n", (char *) NULL); #else # if !defined(CANONICAL_ARGS) if (paramDefs) Tcl_AppendStringsToObj(resultBody, "::xotcl::interpretNonpositionalArgs {*}$args\n", (char *) NULL); # else if (paramDefs && paramPtr->possibleUnknowns > 0) Tcl_AppendStringsToObj(resultBody, "::xotcl::unsetUnknownArgs\n", (char *) NULL); # endif #endif Tcl_AppendStringsToObj(resultBody, ObjStr(body), (char *) NULL); return resultBody; } #define NEW_STRING(target, p, l) target = ckalloc(l+1); strncpy(target, p, l); *((target)+l) = '\0' XOTCLINLINE static int noMetaChars(char *pattern) { register char c, *p = pattern; assert(pattern); for (c=*p; c; c = *++p) { if (c == '*' || c == '?' || c == '[') { return 0; } } return 1; } /* * type converter */ /* we could define parameterTypes with a converter, setter, canCheck, name */ static int convertToString(Tcl_Interp *interp, Tcl_Obj *objPtr, XOTclParam CONST *pPtr, ClientData *clientData) { *clientData = (char *)ObjStr(objPtr); return TCL_OK; } static int convertToTclobj(Tcl_Interp *interp, Tcl_Obj *objPtr, XOTclParam CONST *pPtr, ClientData *clientData) { *clientData = (ClientData)objPtr; return TCL_OK; } static int convertToNothing(Tcl_Interp *interp, Tcl_Obj *objPtr, XOTclParam CONST *pPtr, ClientData *clientData) { return TCL_OK; } static int convertToBoolean(Tcl_Interp *interp, Tcl_Obj *objPtr, XOTclParam CONST *pPtr, ClientData *clientData) { int result, bool; result = Tcl_GetBooleanFromObj(interp, objPtr, &bool); if (result == TCL_OK) *clientData = (ClientData)INT2PTR(bool); return result; } static int convertToInteger(Tcl_Interp *interp, Tcl_Obj *objPtr, XOTclParam CONST *pPtr, ClientData *clientData) { int result, i; result = Tcl_GetIntFromObj(interp, objPtr, &i); if (result == TCL_OK) *clientData = (ClientData)INT2PTR(i); return result; } static int convertToSwitch(Tcl_Interp *interp, Tcl_Obj *objPtr, XOTclParam CONST *pPtr, ClientData *clientData) { return convertToBoolean(interp, objPtr, pPtr, clientData); } static int convertToObject(Tcl_Interp *interp, Tcl_Obj *objPtr, XOTclParam CONST *pPtr, ClientData *clientData) { if (GetObjectFromObj(interp, objPtr, (XOTclObject **)clientData) == TCL_OK) return TCL_OK; return XOTclObjErrType(interp, objPtr, "object"); } static int convertToClass(Tcl_Interp *interp, Tcl_Obj *objPtr, XOTclParam CONST *pPtr, ClientData *clientData) { if (GetClassFromObj(interp, objPtr, (XOTclClass **)clientData, 0) == TCL_OK) { return TCL_OK; } return XOTclObjErrType(interp, objPtr, "class"); } static int convertToRelation(Tcl_Interp *interp, Tcl_Obj *objPtr, XOTclParam CONST *pPtr, ClientData *clientData) { /* XOTclRelationCmd is the real setter, which checks the values according to the relation type (Class, List of Class, list of filters; we treat it here just like a tclobj */ *clientData = (ClientData)objPtr; return TCL_OK; } static int convertViaCmd(Tcl_Interp *interp, Tcl_Obj *objPtr, XOTclParam CONST *pPtr, ClientData *clientData) { Tcl_Obj *ov[5]; int result, oc; ov[0] = XOTclGlobalObjects[XOTE_PARAMETER_TYPE_OBJ]; ov[1] = pPtr->arg; ov[2] = pPtr->nameObj; ov[3] = objPtr; oc = 4; if (pPtr->converterArg) { ov[4] = pPtr->converterArg; oc++; } result = Tcl_EvalObjv(interp, oc, ov, 0); if (result == TCL_OK) { *clientData = (ClientData)objPtr; } return result; } static int convertToObjpattern(Tcl_Interp *interp, Tcl_Obj *objPtr, XOTclParam CONST *pPtr, ClientData *clientData) { Tcl_Obj *patternObj = objPtr; char *pattern = ObjStr(objPtr); if (noMetaChars(pattern)) { /* we have no meta characters, we try to check for an existing object */ XOTclObject *obj = NULL; GetObjectFromObj(interp, objPtr, &obj); if (obj) { patternObj = obj->cmdName; } } else { /* * We have a pattern and meta characters, we might have * to prefix it to ovoid abvious errors: since all object * names are prefixed with ::, we add this prefix automatically * to the match pattern, if it does not exist */ if (*pattern != ':' && *pattern+1 != ':') { patternObj = Tcl_NewStringObj("::", 2); Tcl_AppendToObj(patternObj, pattern, -1); } } if (patternObj) { INCR_REF_COUNT(patternObj); } *clientData = (ClientData)patternObj; return TCL_OK; } static Tcl_Obj* ParamCheckObj(Tcl_Interp *interp, char *start, int len) { Tcl_Obj *checker = Tcl_NewStringObj("type=", 5); Tcl_AppendToObj(checker, start, len); return checker; } static int ParamOptionSetConverter(Tcl_Interp *interp, XOTclParam *paramPtr, char *typeName, XOTclTypeConverter *converter) { if (paramPtr->converter) { return XOTclVarErrMsg(interp, "Refuse to redefine parameter converter to use ", typeName, (char *) NULL); } paramPtr->converter = converter; paramPtr->nrArgs = 1; paramPtr->type = typeName; return TCL_OK; } static int ParamOptionParse(Tcl_Interp *interp, char *option, int length, int disallowedOptions, XOTclParam *paramPtr) { int result = TCL_OK; /*fprintf(stderr, "def %s, option '%s' (%d)\n", paramPtr->name, option, length);*/ if (strncmp(option, "required", MAX(3,length)) == 0) { paramPtr->flags |= XOTCL_ARG_REQUIRED; } else if (strncmp(option, "optional", MAX(3,length)) == 0) { paramPtr->flags &= ~XOTCL_ARG_REQUIRED; } else if (strncmp(option, "substdefault", 12) == 0) { paramPtr->flags |= XOTCL_ARG_SUBST_DEFAULT; } else if (strncmp(option, "initcmd", 7) == 0) { paramPtr->flags |= XOTCL_ARG_INITCMD; } else if (strncmp(option, "method", 6) == 0) { paramPtr->flags |= XOTCL_ARG_METHOD; } else if (strncmp(option, "noarg", 5) == 0) { paramPtr->flags |= XOTCL_ARG_NOARG; paramPtr->nrArgs = 0; } else if (length >= 5 && strncmp(option, "arg=", 4) == 0) { paramPtr->converterArg = Tcl_NewStringObj(option+4, length-4); INCR_REF_COUNT(paramPtr->converterArg); } else if (strncmp(option, "switch", 6) == 0) { result = ParamOptionSetConverter(interp, paramPtr, "switch", convertToSwitch); paramPtr->nrArgs = 0; assert(paramPtr->defaultValue == NULL); paramPtr->defaultValue = Tcl_NewBooleanObj(0); INCR_REF_COUNT(paramPtr->defaultValue); } else if (strncmp(option, "integer", MAX(3,length)) == 0) { result = ParamOptionSetConverter(interp, paramPtr, "integer", convertToInteger); } else if (strncmp(option, "boolean", 7) == 0) { result = ParamOptionSetConverter(interp, paramPtr, "boolean", convertToBoolean); } else if (strncmp(option, "object", 6) == 0) { result = ParamOptionSetConverter(interp, paramPtr, "object", convertToObject); } else if (strncmp(option, "class", 5) == 0) { result = ParamOptionSetConverter(interp, paramPtr, "class", convertToClass); } else if (strncmp(option, "relation", 8) == 0) { result = ParamOptionSetConverter(interp, paramPtr, "relation", convertToRelation); paramPtr->flags |= XOTCL_ARG_RELATION; /*paramPtr->type = "tclobj";*/ } else { XOTclObject *paramObj; Tcl_Obj *checker; XOTclClass *pcl; Tcl_Command cmd; result = GetObjectFromObj(interp, XOTclGlobalObjects[XOTE_PARAMETER_TYPE_OBJ], ¶mObj); if (result != TCL_OK) return result; checker = ParamCheckObj(interp, option, length); INCR_REF_COUNT(checker); cmd = ObjectFindMethod(interp, paramObj, ObjStr(checker), &pcl); if (cmd == NULL) { fprintf(stderr, "**** could not find checker method %s defined on %s\n", ObjStr(checker), objectName(paramObj)); /* TODO: for the time being, we do not return an error here */ } result = ParamOptionSetConverter(interp, paramPtr, "usertype", convertViaCmd); paramPtr->arg = checker; } if ((paramPtr->flags & disallowedOptions)) { return XOTclVarErrMsg(interp, "Parameter option '", option, "' not allowed", (char *) NULL); } return result; } static int ParamParse(Tcl_Interp *interp, char *procName, Tcl_Obj *arg, int disallowedOptions, XOTclParam *paramPtr, int *possibleUnknowns, int *plainParams) { int result, npac, length, j, nameLength, isNonposArgument; char *argString, *argName; Tcl_Obj **npav; result = Tcl_ListObjGetElements(interp, arg, &npac, &npav); if (result != TCL_OK || npac < 1 || npac > 2) { return XOTclVarErrMsg(interp, "wrong # of elements in parameter definition for method", procName, " (should be 1 or 2 list elements): ", ObjStr(arg), (char *) NULL); } argString = ObjStr(npav[0]); length = strlen(argString); isNonposArgument = *argString == '-'; if (isNonposArgument) { argName = argString+1; nameLength = length-1; paramPtr->nrArgs = 1; /* per default 1 argument, switches set their arg numbers */ } else { argName = argString; nameLength = length; paramPtr->flags |= XOTCL_ARG_REQUIRED; /* positional arguments are required unless we have a default */ } /*fprintf(stderr, "... parsing '%s', name '%s' \n", ObjStr(arg), argName);*/ /* find the first ':' */ for (j=0; jname, argString, j); paramPtr->nameObj = Tcl_NewStringObj(argName, isNonposArgument ? j-1 : j); INCR_REF_COUNT(paramPtr->nameObj); /* skip space */ for (start = j+1; start0 && isspace((int)argString[end-1]); end--); result = ParamOptionParse(interp, argString+start, end-start, disallowedOptions, paramPtr); if (result != TCL_OK) { goto param_error; } l++; /* skip space */ for (start = l; start0 && isspace((int)argString[end-1]); end--); /* process last option */ result = ParamOptionParse(interp, argString+start, end-start, disallowedOptions, paramPtr); if (result != TCL_OK) { goto param_error; } } else { /* no ':', the whole arg is the name */ NEW_STRING(paramPtr->name, argString, length); if (isNonposArgument) { paramPtr->nameObj = Tcl_NewStringObj(argName, length-1); } else { (*plainParams) ++; paramPtr->nameObj = Tcl_NewStringObj(argName, length); } INCR_REF_COUNT(paramPtr->nameObj); } /* if we have two arguments in the list, the second one is a default value */ if (npac == 2) { /* if we have for some reason already a default value, free it */ if (paramPtr->defaultValue) { DECR_REF_COUNT(paramPtr->defaultValue); } paramPtr->defaultValue = Tcl_DuplicateObj(npav[1]); INCR_REF_COUNT(paramPtr->defaultValue); /* * The argument will be not required for an invocation, since we * have a default. */ paramPtr->flags &= ~XOTCL_ARG_REQUIRED; } /* convertToTclobj() is the default converter */ if (paramPtr->converter == NULL) { paramPtr->converter = convertToTclobj; } /* * If the argument is not required and no default value is * specified, we have to handle in the client code (eg. in the * canonical arg handlers for scripted methods) the unknown value * (e.g. don't set/unset a variable) */ if (!(paramPtr->flags & XOTCL_ARG_REQUIRED) && paramPtr->defaultValue == NULL) { (*possibleUnknowns)++; } return TCL_OK; param_error: ckfree((char *)paramPtr->name); paramPtr->name = NULL DECR_REF_COUNT(paramPtr->nameObj); return TCL_ERROR; } static int ParamDefsParse(Tcl_Interp *interp, char *procName, Tcl_Obj *args, int allowedOptinons, XOTclParsedParam *parsedParamPtr) { Tcl_Obj **argsv; int result, argsc; parsedParamPtr->paramDefs = NULL; parsedParamPtr->possibleUnknowns = 0; result = Tcl_ListObjGetElements(interp, args, &argsc, &argsv); if (result != TCL_OK) { return XOTclVarErrMsg(interp, "cannot break down non-positional args: ", ObjStr(args), (char *) NULL); } if (argsc > 0) { XOTclParam *paramsPtr, *paramPtr, *lastParamPtr; int i, possibleUnknowns = 0, plainParams = 0; XOTclParamDefs *paramDefs; paramPtr = paramsPtr = ParamsNew(argsc); for (i=0; i < argsc; i++, paramPtr++) { result = ParamParse(interp, procName, argsv[i], allowedOptinons, paramPtr, &possibleUnknowns, &plainParams); if (result != TCL_OK) { ParamsFree(paramsPtr); return result; } } /* * If all arguments are good old Tcl arguments, there is no need * to use the parameter definition structure. */ if (plainParams == argsc) { ParamsFree(paramsPtr); return TCL_OK; } /* fprintf(stderr, "we need param definition structure for {%s}, argsc %d plain %d\n", ObjStr(args), argsc, plainParams); */ /* * Check the last argument. If the last argument is named 'args', * force converter and make it non-required. */ lastParamPtr = paramPtr - 1; if (isArgsString(lastParamPtr->name)) { lastParamPtr->converter = convertToNothing; lastParamPtr->flags &= ~XOTCL_ARG_REQUIRED; } paramDefs = NEW(XOTclParamDefs); MEM_COUNT_ALLOC("paramDefs", paramDefs); paramDefs->slotObj = NULL; paramDefs->paramsPtr = paramsPtr; paramDefs->nrParams = paramPtr-paramsPtr; /*fprintf(stderr, "method %s ifsize %d, possible unknowns = %d,\n", procName, paramPtr-paramDefsPtr, possibleUnknowns);*/ parsedParamPtr->paramDefs = paramDefs; parsedParamPtr->possibleUnknowns = possibleUnknowns; } return TCL_OK; } static int MakeProc(Tcl_Namespace *nsPtr, XOTclAssertionStore *aStore, Tcl_Interp *interp, Tcl_Obj *nameObj, Tcl_Obj *args, Tcl_Obj *body, Tcl_Obj *precondition, Tcl_Obj *postcondition, XOTclObject *object, int withPublic, int withPer_object, int clsns) { TclCallFrame frame, *framePtr = &frame; char *methodName = ObjStr(nameObj); XOTclParsedParam parsedParam; Tcl_Obj *ov[4]; int result; /* Check, if we are allowed to redefine the method */ result = CanRedefineCmd(interp, nsPtr, object, methodName); if (result == TCL_OK) { /* Yes, so obtain an method parameter definitions */ result = ParamDefsParse(interp, methodName, args, XOTCL_ARG_METHOD_PARAMETER, &parsedParam); } if (result != TCL_OK) { return result; } ov[0] = NULL; /*objv[0];*/ ov[1] = nameObj; if (parsedParam.paramDefs) { # if defined(CANONICAL_ARGS) XOTclParam *pPtr; Tcl_Obj *argList = Tcl_NewListObj(0, NULL); for (pPtr = parsedParam.paramDefs->paramsPtr; pPtr->name; pPtr++) { if (*pPtr->name == '-') { Tcl_ListObjAppendElement(interp, argList, Tcl_NewStringObj(pPtr->name+1,-1)); } else { Tcl_ListObjAppendElement(interp, argList, Tcl_NewStringObj(pPtr->name,-1)); } } ov[2] = argList; INCR_REF_COUNT(ov[2]); /*fprintf(stderr, "final arglist = <%s>\n", ObjStr(argList)); */ #else ov[2] = XOTclGlobalObjects[XOTE_ARGS]; #endif ov[3] = addPrefixToBody(body, 1, &parsedParam); } else { /* no nonpos arguments */ ov[2] = args; ov[3] = addPrefixToBody(body, 0, &parsedParam); } Tcl_PushCallFrame(interp, (Tcl_CallFrame *)framePtr, nsPtr, 0); /* create the method in the provided namespace */ result = Tcl_ProcObjCmd(0, interp, 4, ov) != TCL_OK; if (result == TCL_OK) { /* retrieve the defined proc */ Proc *procPtr = FindProcMethod(nsPtr, methodName); if (procPtr) { /* modify the cmd of the proc to set the current namespace for the body */ if (clsns) { /* * Set the namespace of the method as inside of the class */ if (!object->nsPtr) { makeObjNamespace(interp, object); } /*fprintf(stderr, "obj %s\n", objectName(object)); fprintf(stderr, "ns %p object->ns %p\n", ns, object->nsPtr); fprintf(stderr, "ns %s object->ns %s\n", ns->fullName, object->nsPtr->fullName);*/ procPtr->cmdPtr->nsPtr = (Namespace*) object->nsPtr; } else { /* * Set the namespace of the method to the same namespace the class has */ procPtr->cmdPtr->nsPtr = ((Command *)object->id)->nsPtr; } ParamDefsStore(interp, (Tcl_Command)procPtr->cmdPtr, parsedParam.paramDefs); #if 0 if (!withPublic) { Tcl_Command_flags((Tcl_Command)procPtr->cmdPtr) |= XOTCL_CMD_PROTECTED_METHOD; } #endif result = ListMethodName(interp, object, withPer_object, methodName); } } Tcl_PopCallFrame(interp); if (result == TCL_OK && (precondition || postcondition)) { AssertionAddProc(interp, methodName, aStore, precondition, postcondition); } #if defined(CANONICAL_ARGS) if (parsedParam.paramDefs) { DECR_REF_COUNT(ov[2]); } #endif DECR_REF_COUNT(ov[3]); return result; } static int MakeMethod(Tcl_Interp *interp, XOTclObject *obj, XOTclClass *cl, Tcl_Obj *nameObj, Tcl_Obj *args, Tcl_Obj *body, Tcl_Obj *precondition, Tcl_Obj *postcondition, int withPublic, int clsns) { char *argsStr = ObjStr(args), *bodyStr = ObjStr(body), *nameStr = ObjStr(nameObj); int result; if (precondition && !postcondition) { return XOTclVarErrMsg(interp, className(cl), " method '", nameStr, "'; when specifying a precondition (", ObjStr(precondition), ") a postcondition must be specified as well", (char *) NULL); } /* if both, args and body are empty strings, we delete the method */ if (*argsStr == 0 && *bodyStr == 0) { result = cl ? XOTclRemoveClassMethod(interp, (XOTcl_Class *)cl, nameStr) : XOTclRemoveObjectMethod(interp, (XOTcl_Object *)obj, nameStr); } else { XOTclAssertionStore *aStore = NULL; if (precondition || postcondition) { if (cl) { XOTclClassOpt *opt = XOTclRequireClassOpt(cl); if (!opt->assertions) opt->assertions = AssertionCreateStore(); aStore = opt->assertions; } else { XOTclObjectOpt *opt = XOTclRequireObjectOpt(obj); if (!opt->assertions) opt->assertions = AssertionCreateStore(); aStore = opt->assertions; } } result = MakeProc(cl ? cl->nsPtr : obj->nsPtr, aStore, interp, nameObj, args, body, precondition, postcondition, obj, withPublic, cl == NULL, clsns); } if (cl) { /* could be a filter or filter inheritance ... update filter orders */ FilterInvalidateObjOrders(interp, cl); } else { /* could be a filter => recompute filter order */ FilterComputeDefined(interp, obj); } return result; } static int getMatchObject(Tcl_Interp *interp, Tcl_Obj *patternObj, Tcl_Obj *origObj, XOTclObject **matchObject, char **pattern) { if (patternObj) { *pattern = ObjStr(patternObj); if (IsXOTclTclObj(interp, patternObj, matchObject)) { } else if (patternObj == origObj && **pattern != ':') { /* no meta chars, but no appropriate xotcl object found, so return empty; we could check above with noMetaChars(pattern) as well, but the only remaining case are leading colons and metachars. */ return 1; } } return 0; } static void forwardCmdDeleteProc(ClientData clientData) { forwardCmdClientData *tcd = (forwardCmdClientData *)clientData; if (tcd->cmdName) {DECR_REF_COUNT(tcd->cmdName);} if (tcd->subcommands) {DECR_REF_COUNT(tcd->subcommands);} if (tcd->onerror) {DECR_REF_COUNT(tcd->onerror);} if (tcd->prefix) {DECR_REF_COUNT(tcd->prefix);} if (tcd->args) {DECR_REF_COUNT(tcd->args);} FREE(forwardCmdClientData, tcd); } static int forwardProcessOptions(Tcl_Interp *interp, Tcl_Obj *name, Tcl_Obj *withDefault, int withEarlybinding, Tcl_Obj *withMethodprefix, int withObjscope, Tcl_Obj *withOnerror, int withVerbose, Tcl_Obj *target, int objc, Tcl_Obj * CONST objv[], forwardCmdClientData **tcdp) { forwardCmdClientData *tcd; int i, result = 0; tcd = NEW(forwardCmdClientData); memset(tcd, 0, sizeof(forwardCmdClientData)); if (withDefault) { Tcl_DString ds, *dsPtr = &ds; DSTRING_INIT(dsPtr); Tcl_DStringAppend(dsPtr, "%1 {", 4); Tcl_DStringAppend(dsPtr, ObjStr(withDefault), -1); Tcl_DStringAppend(dsPtr, "}", 1); XOTclDeprecatedCmd(interp, "forward option","-default ...", Tcl_DStringValue(dsPtr)); DSTRING_FREE(dsPtr); tcd->subcommands = withDefault; result = Tcl_ListObjLength(interp, withDefault, &tcd->nr_subcommands); INCR_REF_COUNT(tcd->subcommands); } if (withMethodprefix) { tcd->prefix = withMethodprefix; INCR_REF_COUNT(tcd->prefix); } if (withOnerror) { tcd->onerror = withOnerror; INCR_REF_COUNT(tcd->onerror); } tcd->objscope = withObjscope; tcd->verbose = withVerbose; tcd->needobjmap = 0; tcd->cmdName = target; /*fprintf(stderr, "...forwardprocess objc %d\n", objc);*/ for (i=0; ineedobjmap |= (*element == '%' && *(element+1) == '@'); tcd->hasNonposArgs |= (*element == '%' && *(element+1) == '-'); if (tcd->args == NULL) { tcd->args = Tcl_NewListObj(1, &objv[i]); tcd->nr_args++; INCR_REF_COUNT(tcd->args); } else { Tcl_ListObjAppendElement(interp, tcd->args, objv[i]); tcd->nr_args++; } } if (!tcd->cmdName) { tcd->cmdName = name; } /*fprintf(stderr, "cmdName = %s, args = %s, # = %d\n", ObjStr(tcd->cmdName), tcd->args?ObjStr(tcd->args):"NULL", tcd->nr_args);*/ if (tcd->objscope) { /* when we evaluating objscope, and define ... o forward append -objscope append a call to o append ... would lead to a recursive call; so we add the appropriate namespace */ char *nameString = ObjStr(tcd->cmdName); if (!isAbsolutePath(nameString)) { tcd->cmdName = NameInNamespaceObj(interp, nameString, callingNameSpace(interp)); /*fprintf(stderr, "name %s not absolute, therefore qualifying %s\n", name, ObjStr(tcd->cmdName));*/ } } INCR_REF_COUNT(tcd->cmdName); if (withEarlybinding) { Tcl_Command cmd = Tcl_GetCommandFromObj(interp, tcd->cmdName); if (cmd == NULL) return XOTclVarErrMsg(interp, "cannot lookup command '", ObjStr(tcd->cmdName), "'", (char *) NULL); tcd->objProc = Tcl_Command_objProc(cmd); if (tcd->objProc == XOTclObjDispatch /* don't do direct invoke on xotcl objects */ || tcd->objProc == TclObjInterpProc /* don't do direct invoke on tcl procs */ ) { /* silently ignore earlybinding flag */ tcd->objProc = NULL; } else { tcd->clientData = Tcl_Command_objClientData(cmd); } } tcd->passthrough = !tcd->args && *(ObjStr(tcd->cmdName)) != '%' && tcd->objProc; /*fprintf(stderr, "forward args = %p, name = '%s'\n", tcd->args, ObjStr(tcd->cmdName));*/ if (result == TCL_OK) { *tcdp = tcd; } else { forwardCmdDeleteProc((ClientData)tcd); } return result; } static XOTclClasses * ComputePrecedenceList(Tcl_Interp *interp, XOTclObject *obj, char *pattern, int withMixins, int withRootClass) { XOTclClasses *precedenceList = NULL, *pcl, **npl = &precedenceList; if (withMixins) { if (!(obj->flags & XOTCL_MIXIN_ORDER_VALID)) MixinComputeDefined(interp, obj); if (obj->flags & XOTCL_MIXIN_ORDER_DEFINED_AND_VALID) { XOTclCmdList *ml = obj->mixinOrder; while (ml) { XOTclClass *mixin = XOTclGetClassFromCmdPtr(ml->cmdPtr); if (pattern) { char *name = className(mixin); if (!Tcl_StringMatch(name, pattern)) continue; } npl = XOTclClassListAdd(npl, mixin, NULL); ml = ml->nextPtr; } } } pcl = ComputeOrder(obj->cl, obj->cl->order, Super); for (; pcl; pcl = pcl->nextPtr) { if (withRootClass == 0 && pcl->cl->object.flags & XOTCL_IS_ROOT_CLASS) continue; if (pattern) { char *name = className(pcl->cl); if (!Tcl_StringMatch(name, pattern)) continue; } npl = XOTclClassListAdd(npl, pcl->cl, NULL); } return precedenceList; } static char * StripBodyPrefix(char *body) { #if defined(PRE85) if (strncmp(body, "::xotcl::initProcNS\n", 20) == 0) body+=20; if (strncmp(body, "::eval ::xotcl::interpretNonpositionalArgs $args\n", 49) == 0) body += 49; #else # if !defined(CANONICAL_ARGS) if (strncmp(body, "::xotcl::interpretNonpositionalArgs {*}$args\n", 45) == 0) body += 45; # else if (strncmp(body, "::xotcl::unsetUnknownArgs\n", 26) == 0) body += 26; # endif #endif return body; } static XOTclObjects * computeSlotObjects(Tcl_Interp *interp, XOTclObject *obj, char *pattern, int withRootClass) { XOTclObjects *slotObjects = NULL, **npl = &slotObjects; XOTclClasses *pl; XOTclObject *childobj, *o; Tcl_HashTable slotTable; assert(obj); Tcl_InitHashTable(&slotTable, TCL_STRING_KEYS); MEM_COUNT_ALLOC("Tcl_InitHashTable", slotTable); pl = ComputePrecedenceList(interp, obj, NULL /* pattern*/, 1, withRootClass); for (; pl; pl = pl->nextPtr) { Tcl_DString ds, *dsPtr = &ds; DSTRING_INIT(dsPtr); Tcl_DStringAppend(dsPtr, className(pl->cl), -1); Tcl_DStringAppend(dsPtr, "::slot", 6); o = XOTclpGetObject(interp, Tcl_DStringValue(dsPtr)); if (o) { Tcl_HashSearch hSrch; Tcl_HashEntry *hPtr, *slotEntry; Tcl_HashTable *cmdTable; Tcl_Command cmd; int new; if (!o->nsPtr) continue; cmdTable = Tcl_Namespace_cmdTable(o->nsPtr); hPtr = Tcl_FirstHashEntry(cmdTable, &hSrch); for (; hPtr; hPtr = Tcl_NextHashEntry(&hSrch)) { char *key = Tcl_GetHashKey(cmdTable, hPtr); slotEntry = Tcl_CreateHashEntry(&slotTable, key, &new); if (!new) continue; cmd = (Tcl_Command) Tcl_GetHashValue(hPtr); childobj = XOTclGetObjectFromCmdPtr(cmd); /* (childobj->id && Tcl_Command_nsPtr(childobj->id) == obj->nsPtr) true children */ /*fprintf(stderr, "we have true child obj %s\n", objectName(childobj));*/ npl = XOTclObjectListAdd(npl, childobj); } } DSTRING_FREE(dsPtr); } Tcl_DeleteHashTable(&slotTable); MEM_COUNT_FREE("Tcl_InitHashTable", slotTable); XOTclClassListFree(pl); return slotObjects; } static XOTclClass* FindCalledClass(Tcl_Interp *interp, XOTclObject *obj) { XOTclCallStackContent *csc = CallStackGetTopFrame(interp, NULL); char *methodName; Tcl_Command cmd; if (csc->frameType == XOTCL_CSC_TYPE_PLAIN) return csc->cl; if (csc->frameType == XOTCL_CSC_TYPE_ACTIVE_FILTER) methodName = ObjStr(csc->filterStackEntry->calledProc); else if (csc->frameType == XOTCL_CSC_TYPE_ACTIVE_MIXIN && obj->mixinStack) methodName = (char *)Tcl_GetCommandName(interp, csc->cmdPtr); else return NULL; if (obj->nsPtr) { cmd = FindMethod(obj->nsPtr, methodName); if (cmd) { /* we called an object specific method */ return NULL; } } return SearchCMethod(obj->cl, methodName, &cmd); } /* * Next Primitive Handling */ XOTCLINLINE static int NextSearchMethod(XOTclObject *obj, Tcl_Interp *interp, XOTclCallStackContent *csc, XOTclClass **cl, char **method, Tcl_Command *cmd, int *isMixinEntry, int *isFilterEntry, int *endOfFilterChain, Tcl_Command *currentCmd) { int endOfChain = 0, objflags; /* * Next in filters */ objflags = obj->flags; /* avoid stalling */ if (!(objflags & XOTCL_MIXIN_ORDER_VALID)) { MixinComputeDefined(interp, obj); objflags = obj->flags; /* avoid stalling */ } if ((objflags & XOTCL_FILTER_ORDER_VALID) && obj->filterStack && obj->filterStack->currentCmdPtr) { *cmd = FilterSearchProc(interp, obj, currentCmd, cl); /*fprintf(stderr, "EndOfChain? proc=%p, cmd=%p\n",*proc,*cmd);*/ /* XOTclCallStackDump(interp); XOTclStackDump(interp);*/ if (*cmd == 0) { if (csc->frameType == XOTCL_CSC_TYPE_ACTIVE_FILTER) { /* reset the information to the values of method, cl to the values they had before calling the filters */ *method = ObjStr(obj->filterStack->calledProc); endOfChain = 1; *endOfFilterChain = 1; *cl = 0; /*fprintf(stderr, "EndOfChain resetting cl\n");*/ } } else { *method = (char *) Tcl_GetCommandName(interp, *cmd); *endOfFilterChain = 0; *isFilterEntry = 1; return TCL_OK; } } /* * Next in Mixins */ assert(objflags & XOTCL_MIXIN_ORDER_VALID); /* otherwise: MixinComputeDefined(interp, obj); */ /*fprintf(stderr, "nextsearch: mixinorder valid %d stack=%p\n", obj->flags & XOTCL_MIXIN_ORDER_VALID, obj->mixinStack);*/ if ((objflags & XOTCL_MIXIN_ORDER_VALID) && obj->mixinStack) { int result = MixinSearchProc(interp, obj, *method, cl, currentCmd, cmd); if (result != TCL_OK) { return result; } /*fprintf(stderr, "nextsearch: mixinsearch cmd %p, currentCmd %p\n",*cmd, *currentCmd);*/ if (*cmd == 0) { if (csc->frameType == XOTCL_CSC_TYPE_ACTIVE_MIXIN) { endOfChain = 1; *cl = 0; } } else { *isMixinEntry = 1; return TCL_OK; } } /* * otherwise: normal method dispatch * * if we are already in the precedence ordering, then advance * past our last point; otherwise (if cl==0) begin from the start */ /* if a mixin or filter chain has ended -> we have to search the obj-specific methods as well */ if (obj->nsPtr && endOfChain) { *cmd = FindMethod(obj->nsPtr, *method); } else { *cmd = NULL; } if (!*cmd) { XOTclClasses *pl; #if 0 /* a more explicit version, but slower */ pl = ComputeOrder(obj->cl, obj->cl->order, Super); /* if we have a class, skip to the next class in the precedence order */ if (*cl) { for (; pl; pl = pl->nextPtr) { if (pl->cl == *cl) { pl = pl->nextPtr; break; } } } #else for (pl = ComputeOrder(obj->cl, obj->cl->order, Super); *cl && pl; pl = pl->nextPtr) { if (pl->cl == *cl) { *cl = NULL; } } #endif /* * search for a further class method */ *cl = SearchPLMethod(pl, *method, cmd); /*fprintf(stderr, "no cmd, cl = %p %s\n",*cl, className((*cl)));*/ } else { *cl = 0; } return TCL_OK; } static int XOTclNextMethod(XOTclObject *obj, Tcl_Interp *interp, XOTclClass *givenCl, char *givenMethod, int objc, Tcl_Obj *CONST objv[], int useCallstackObjs, XOTclCallStackContent *cscPtr) { Tcl_Command cmd, currentCmd = NULL; int result, frameType = XOTCL_CSC_TYPE_PLAIN, isMixinEntry = 0, isFilterEntry = 0, endOfFilterChain = 0, decrObjv0 = 0; int nobjc; Tcl_Obj **nobjv; XOTclClass **cl = &givenCl; char **methodName = &givenMethod; TclCallFrame *framePtr; if (!cscPtr) { cscPtr = CallStackGetTopFrame(interp, &framePtr); } else { /* * cscPtr was given (i.e. it is not yet on the stack. So we cannot * get objc from the associated stack frame */ framePtr = NULL; assert(useCallstackObjs == 0); /* fprintf(stderr, "XOTclNextMethod csc given, use %d, framePtr %p\n", useCallstackObjs, framePtr); */ } /*fprintf(stderr, "XOTclNextMethod givenMethod = %s, csc = %p, useCallstackObj %d, objc %d cfp %p\n", givenMethod, cscPtr, useCallstackObjs, objc, framePtr);*/ /* if no args are given => use args from stack */ if (objc < 2 && useCallstackObjs && framePtr) { if (cscPtr->objv) { nobjv = cscPtr->objv; nobjc = cscPtr->objc; } else { nobjc = Tcl_CallFrame_objc(framePtr); nobjv = (Tcl_Obj **)Tcl_CallFrame_objv(framePtr); } } else { nobjc = objc; nobjv = (Tcl_Obj **)objv; /* We do not want to have "next" as the procname, since this can lead to unwanted results e.g. in a forwarder using %proc. So, we replace the first word with the value from the callstack to be compatible with the case where next is called without args. */ if (useCallstackObjs && framePtr) { nobjv[0] = Tcl_CallFrame_objv(framePtr)[0]; INCR_REF_COUNT(nobjv[0]); /* we seem to need this here */ decrObjv0 = 1; } } /* * Search the next method & compute its method data */ result = NextSearchMethod(obj, interp, cscPtr, cl, methodName, &cmd, &isMixinEntry, &isFilterEntry, &endOfFilterChain, ¤tCmd); if (result != TCL_OK) { return result; } /* fprintf(stderr, "NextSearchMethod -- RETURN: method=%s eoffc=%d,", *methodName, endOfFilterChain); if (obj) fprintf(stderr, " obj=%s,", objectName(obj)); if ((*cl)) fprintf(stderr, " cl=%s,", (*cl)->nsPtr->fullName); fprintf(stderr, " mixin=%d, filter=%d, proc=%p\n", isMixinEntry, isFilterEntry, proc); */ #if 0 Tcl_ResetResult(interp); /* needed for bytecode support */ #endif if (cmd) { /* * change mixin state */ if (obj->mixinStack) { if (cscPtr->frameType == XOTCL_CSC_TYPE_ACTIVE_MIXIN) cscPtr->frameType = XOTCL_CSC_TYPE_INACTIVE_MIXIN; /* otherwise move the command pointer forward */ if (isMixinEntry) { frameType = XOTCL_CSC_TYPE_ACTIVE_MIXIN; obj->mixinStack->currentCmdPtr = currentCmd; } } /* * change filter state */ if (obj->filterStack) { if (cscPtr->frameType == XOTCL_CSC_TYPE_ACTIVE_FILTER) { /*fprintf(stderr, "next changes filter state\n");*/ cscPtr->frameType = XOTCL_CSC_TYPE_INACTIVE_FILTER; } /* otherwise move the command pointer forward */ if (isFilterEntry) { /*fprintf(stderr, "next moves filter forward\n");*/ frameType = XOTCL_CSC_TYPE_ACTIVE_FILTER; obj->filterStack->currentCmdPtr = currentCmd; } } /* * now actually call the "next" method */ /* cut the flag, that no stdargs should be used, if it is there */ if (nobjc > 1) { char *nobjv1 = ObjStr(nobjv[1]); if (nobjv1[0] == '-' && !strcmp(nobjv1, "--noArgs")) nobjc = 1; } cscPtr->callType |= XOTCL_CSC_CALL_IS_NEXT; RUNTIME_STATE(interp)->unknown = 0; result = MethodDispatch((ClientData)obj, interp, nobjc, nobjv, cmd, obj, *cl, *methodName, frameType); cscPtr->callType &= ~XOTCL_CSC_CALL_IS_NEXT; if (cscPtr->frameType == XOTCL_CSC_TYPE_INACTIVE_FILTER) cscPtr->frameType = XOTCL_CSC_TYPE_ACTIVE_FILTER; else if (cscPtr->frameType == XOTCL_CSC_TYPE_INACTIVE_MIXIN) cscPtr->frameType = XOTCL_CSC_TYPE_ACTIVE_MIXIN; } else if (result == TCL_OK && endOfFilterChain) { /*fprintf(stderr, "setting unknown to 1\n");*/ RUNTIME_STATE(interp)->unknown = 1; } if (decrObjv0) { INCR_REF_COUNT(nobjv[0]); } return result; } int XOTclNextObjCmd(ClientData clientData, Tcl_Interp *interp, int objc, Tcl_Obj *CONST objv[]) { XOTclCallStackContent *cscPtr = CallStackGetTopFrame(interp, NULL); if (!cscPtr) return XOTclVarErrMsg(interp, "next: can't find self", (char *) NULL); if (!cscPtr->cmdPtr) return XOTclErrMsg(interp, "next: no executing proc", TCL_STATIC); return XOTclNextMethod(cscPtr->self, interp, cscPtr->cl, (char *)Tcl_GetCommandName(interp, cscPtr->cmdPtr), objc, objv, 1, NULL); } /* * "self" object command */ static int FindSelfNext(Tcl_Interp *interp, XOTclObject *obj) { XOTclCallStackContent *cscPtr = CallStackGetTopFrame(interp, NULL); Tcl_Command cmd, currentCmd = 0; int result, isMixinEntry = 0, isFilterEntry = 0, endOfFilterChain = 0; XOTclClass *cl = cscPtr->cl; XOTclObject *o = cscPtr->self; char *methodName; Tcl_ResetResult(interp); methodName = (char *)Tcl_GetCommandName(interp, cscPtr->cmdPtr); if (!methodName) return TCL_OK; result = NextSearchMethod(o, interp, cscPtr, &cl, &methodName, &cmd, &isMixinEntry, &isFilterEntry, &endOfFilterChain, ¤tCmd); if (cmd) { Tcl_SetObjResult(interp, getFullProcQualifier(interp, Tcl_GetCommandName(interp, cmd), o, cl, cmd)); } return result; } static Tcl_Obj * computeLevelObj(Tcl_Interp *interp, CallStackLevel level) { Tcl_CallFrame *framePtr; Tcl_Obj *resultObj; switch (level) { case CALLING_LEVEL: XOTclCallStackFindLastInvocation(interp, 1, &framePtr); break; case ACTIVE_LEVEL: XOTclCallStackFindActiveFrame(interp, 1, &framePtr); break; default: framePtr = NULL; } if (framePtr) { /* the call was from an xotcl frame, return absolute frame number */ char buffer[LONG_AS_STRING]; int l; buffer[0] = '#'; XOTcl_ltoa(buffer+1, (long)Tcl_CallFrame_level(framePtr), &l); /*fprintf(stderr, "*** framePtr=%p buffer %s\n", framePtr, buffer);*/ resultObj = Tcl_NewStringObj(buffer, l+1); } else { /* If not called from an xotcl frame, return 1 as default */ resultObj = Tcl_NewIntObj(1); } return resultObj; } /* int XOTclKObjCmd(ClientData clientData, Tcl_Interp *interp, int objc, Tcl_Obj *CONST objv[]) { if (objc < 2) return XOTclVarErrMsg(interp, "wrong # of args for K", (char *) NULL); Tcl_SetObjResult(interp, objv[1]); return TCL_OK; } */ /* * object creation & destruction */ static int unsetInAllNamespaces(Tcl_Interp *interp, Namespace *nsPtr, CONST char *name) { int rc = 0; fprintf(stderr, "### unsetInAllNamespaces variable '%s', current namespace '%s'\n", name, nsPtr ? nsPtr->fullName : "NULL"); if (nsPtr) { Tcl_HashSearch search; Tcl_HashEntry *entryPtr = Tcl_FirstHashEntry(&nsPtr->childTable, &search); Tcl_Var *varPtr; int result; varPtr = (Tcl_Var *) Tcl_FindNamespaceVar(interp, name, (Tcl_Namespace *) nsPtr, 0); /*fprintf(stderr, "found %s in %s -> %p\n", name, nsPtr->fullName, varPtr);*/ if (varPtr) { Tcl_DString dFullname, *dsPtr = &dFullname; Tcl_DStringInit(dsPtr); Tcl_DStringAppend(dsPtr, "unset ", -1); Tcl_DStringAppend(dsPtr, nsPtr->fullName, -1); Tcl_DStringAppend(dsPtr, "::", 2); Tcl_DStringAppend(dsPtr, name, -1); /*rc = Tcl_UnsetVar2(interp, Tcl_DStringValue(dsPtr), NULL, TCL_LEAVE_ERR_MSG);*/ result = Tcl_Eval(interp, Tcl_DStringValue(dsPtr)); /* fprintf(stderr, "fqName = '%s' unset => %d %d\n", Tcl_DStringValue(dsPtr), rc, TCL_OK);*/ if (result == TCL_OK) { rc = 1; } else { Tcl_Obj *resultObj = Tcl_GetObjResult(interp); fprintf(stderr, " err = '%s'\n", ObjStr(resultObj)); } Tcl_DStringFree(dsPtr); } while (rc == 0 && entryPtr) { Namespace *childNsPtr = (Namespace *) Tcl_GetHashValue(entryPtr); /*fprintf(stderr, "child = %s\n", childNsPtr->fullName);*/ entryPtr = Tcl_NextHashEntry(&search); rc |= unsetInAllNamespaces(interp, childNsPtr, name); } } return rc; } static int freeUnsetTraceVariable(Tcl_Interp *interp, XOTclObject *obj) { int result = TCL_OK; if (obj->opt && obj->opt->volatileVarName) { /* Somebody destroys a volatile object manually while the vartrace is still active. Destroying the object will be a problem in case the variable is deleted later and fires the trace. So, we unset the variable here which will cause a destroy via var trace, which in turn clears the volatileVarName flag. */ /*fprintf(stderr, "### freeUnsetTraceVariable %s\n", obj->opt->volatileVarName);*/ result = Tcl_UnsetVar2(interp, obj->opt->volatileVarName, NULL, 0); if (result != TCL_OK) { int result = Tcl_UnsetVar2(interp, obj->opt->volatileVarName, NULL, TCL_GLOBAL_ONLY); if (result != TCL_OK) { Namespace *nsPtr = (Namespace *) Tcl_GetCurrentNamespace(interp); if (unsetInAllNamespaces(interp, nsPtr, obj->opt->volatileVarName) == 0) { fprintf(stderr, "### don't know how to delete variable '%s' of volatile object\n", obj->opt->volatileVarName); } } } if (result == TCL_OK) { /*fprintf(stderr, "### success unset\n");*/ } } return result; } static char * XOTclUnsetTrace(ClientData clientData, Tcl_Interp *interp, CONST char *name, CONST char *name2, int flags) { Tcl_Obj *obj = (Tcl_Obj *)clientData; XOTclObject *o; char *result = NULL; /*fprintf(stderr, "XOTclUnsetTrace %s flags %x %x\n", name, flags, flags & TCL_INTERP_DESTROYED); */ if ((flags & TCL_INTERP_DESTROYED) == 0) { if (GetObjectFromObj(interp, obj, &o) == TCL_OK) { Tcl_Obj *res = Tcl_GetObjResult(interp); /* save the result */ INCR_REF_COUNT(res); /* clear variable, destroy is called from trace */ if (o->opt && o->opt->volatileVarName) { o->opt->volatileVarName = NULL; } if (callDestroyMethod(interp, o, 0) != TCL_OK) { result = "Destroy for volatile object failed"; } else result = "No XOTcl Object passed"; Tcl_SetObjResult(interp, res); /* restore the result */ DECR_REF_COUNT(res); } DECR_REF_COUNT(obj); } else { /*fprintf(stderr, "omitting destroy on %s %p\n", name);*/ } return result; } /* * bring an object into a state, as after initialization */ static void CleanupDestroyObject(Tcl_Interp *interp, XOTclObject *obj, int softrecreate) { /*fprintf(stderr, "CleanupDestroyObject obj %p softrecreate %d\n", obj, softrecreate);*/ /* remove the instance, but not for ::Class/::Object */ if ((obj->flags & XOTCL_IS_ROOT_CLASS) == 0 && (obj->flags & XOTCL_IS_ROOT_META_CLASS) == 0 ) { if (!softrecreate) { (void)RemoveInstance(obj, obj->cl); } } if (obj->nsPtr) { NSCleanupNamespace(interp, obj->nsPtr); NSDeleteChildren(interp, obj->nsPtr); } if (obj->varTable) { TclDeleteVars(((Interp *)interp), obj->varTable); ckfree((char *)obj->varTable); /*FREE(obj->varTable, obj->varTable);*/ obj->varTable = 0; } if (obj->opt) { XOTclObjectOpt *opt = obj->opt; AssertionRemoveStore(opt->assertions); opt->assertions = NULL; #ifdef XOTCL_METADATA XOTclMetaDataDestroy(obj); #endif if (!softrecreate) { /* * Remove this object from all per object mixin lists and clear the mixin list */ removeFromObjectMixinsOf(obj->id, opt->mixins); CmdListRemoveList(&opt->mixins, GuardDel); CmdListRemoveList(&opt->filters, GuardDel); FREE(XOTclObjectOpt, opt); opt = obj->opt = 0; } } obj->flags &= ~XOTCL_MIXIN_ORDER_VALID; if (obj->mixinOrder) MixinResetOrder(obj); obj->flags &= ~XOTCL_FILTER_ORDER_VALID; if (obj->filterOrder) FilterResetOrder(obj); } /* * do obj initialization & namespace creation */ static void CleanupInitObject(Tcl_Interp *interp, XOTclObject *obj, XOTclClass *cl, Tcl_Namespace *namespacePtr, int softrecreate) { #ifdef OBJDELETION_TRACE fprintf(stderr, "+++ CleanupInitObject\n"); #endif obj->teardown = interp; obj->nsPtr = namespacePtr; if (!softrecreate) { AddInstance(obj, cl); } if (obj->flags & XOTCL_RECREATE) { obj->opt = 0; obj->varTable = 0; obj->mixinOrder = 0; obj->filterOrder = 0; obj->flags = 0; } /* fprintf(stderr, "cleanupInitObject %s: %p cl = %p\n", obj->cmdName ? objectName(obj) : "", obj, obj->cl);*/ } static void PrimitiveDestroy(ClientData clientData) { XOTclObject *obj = (XOTclObject*)clientData; if (XOTclObjectIsClass(obj)) PrimitiveCDestroy((ClientData) obj); else PrimitiveODestroy((ClientData) obj); } static void tclDeletesObject(ClientData clientData) { XOTclObject *obj = (XOTclObject*)clientData; Tcl_Interp *interp; #ifdef OBJDELETION_TRACE fprintf(stderr, "tclDeletesObject %p obj->id %p flags %.6x\n", obj, obj->id, obj->flags); #endif if ((obj->flags & XOTCL_DURING_DELETE) || !obj->teardown) return; interp = obj->teardown; # ifdef OBJDELETION_TRACE fprintf(stderr, "... %p %s\n", obj, objectName(obj)); # endif CallStackDestroyObject(interp, obj); } /* * physical object destroy */ static void PrimitiveODestroy(ClientData clientData) { XOTclObject *obj = (XOTclObject*)clientData; Tcl_Interp *interp; if (!obj || !obj->teardown) return; /*fprintf(stderr, "****** PrimitiveODestroy %p flags %.6x\n", obj, obj->flags);*/ assert(!(obj->flags & XOTCL_DELETED)); /* destroy must have been called already */ assert(obj->flags & XOTCL_DESTROY_CALLED); /* * check and latch against recurrent calls with obj->teardown */ PRINTOBJ("PrimitiveODestroy", obj); interp = obj->teardown; /* * Don't destroy, if the interpreter is destroyed already * e.g. TK calls Tcl_DeleteInterp directly, if the window is killed */ if (Tcl_InterpDeleted(interp)) return; #ifdef OBJDELETION_TRACE fprintf(stderr, " physical delete of %p id=%p destroyCalled=%d '%s'\n", obj, obj->id, (obj->flags & XOTCL_DESTROY_CALLED), objectName(obj)); #endif CleanupDestroyObject(interp, obj, 0); while (obj->mixinStack) MixinStackPop(obj); while (obj->filterStack) FilterStackPop(obj); obj->teardown = NULL; if (obj->nsPtr) { /*fprintf(stderr, "primitive odestroy calls deletenamespace for obj %p nsPtr %p\n", obj, obj->nsPtr);*/ XOTcl_DeleteNamespace(interp, obj->nsPtr); obj->nsPtr = NULL; } /*fprintf(stderr, " +++ OBJ/CLS free: %s\n", objectName(obj));*/ obj->flags |= XOTCL_DELETED; objTrace("ODestroy", obj); DECR_REF_COUNT(obj->cmdName); XOTclCleanupObject(obj); #if !defined(NDEBUG) if (obj != (XOTclObject*)RUNTIME_STATE(interp)->theClass) checkAllInstances(interp, RUNTIME_STATE(interp)->theClass, 0); #endif } /* * reset the object to a fresh, undestroyed state */ static void MarkUndestroyed(XOTclObject *obj) { obj->flags &= ~XOTCL_DESTROY_CALLED; } static void PrimitiveOInit(void *mem, Tcl_Interp *interp, char *name, XOTclClass *cl) { XOTclObject *obj = (XOTclObject*)mem; Tcl_Namespace *nsPtr = NULL; #ifdef OBJDELETION_TRACE fprintf(stderr, "+++ PrimitiveOInit\n"); #endif #ifdef XOTCLOBJ_TRACE fprintf(stderr, "OINIT %s = %p\n", name, obj); #endif XOTclObjectRefCountIncr(obj); MarkUndestroyed(obj); nsPtr = NSGetFreshNamespace(interp, (ClientData)obj, name, 0); CleanupInitObject(interp, obj, cl, nsPtr, 0); /*obj->flags = XOTCL_MIXIN_ORDER_VALID | XOTCL_FILTER_ORDER_VALID;*/ obj->mixinStack = NULL; obj->filterStack = NULL; } /* * Object creation: create object name (full name) and Tcl command */ static XOTclObject* PrimitiveOCreate(Tcl_Interp *interp, Tcl_Obj *nameObj, XOTclClass *cl) { XOTclObject *obj = (XOTclObject*)ckalloc(sizeof(XOTclObject)); char *nameString = ObjStr(nameObj); unsigned length; #if defined(XOTCLOBJ_TRACE) fprintf(stderr, "CKALLOC Object %p %s\n", obj, nameString); #endif #ifdef OBJDELETION_TRACE fprintf(stderr, "+++ PrimitiveOCreate\n"); #endif memset(obj, 0, sizeof(XOTclObject)); MEM_COUNT_ALLOC("XOTclObject/XOTclClass", obj); assert(obj); /* ckalloc panics, if malloc fails */ assert(isAbsolutePath(nameString)); length = strlen(nameString); if (!NSCheckForParent(interp, nameString, length, cl)) { ckfree((char *) obj); return 0; } obj->id = Tcl_CreateObjCommand(interp, nameString, XOTclObjDispatch, (ClientData)obj, tclDeletesObject); PrimitiveOInit(obj, interp, nameString, cl); obj->cmdName = nameObj; /* convert cmdName to Tcl Obj of type cmdName */ /*Tcl_GetCommandFromObj(interp, obj->cmdName);*/ INCR_REF_COUNT(obj->cmdName); objTrace("PrimitiveOCreate", obj); return obj; } #if 0 static int duringBootstrap(Tcl_Interp *interp) { Tcl_Obj *bootstrap = Tcl_GetVar2Ex(interp, "::xotcl::bootstrap", NULL, TCL_GLOBAL_ONLY); return (bootstrap != NULL); } #endif static XOTclClass * DefaultSuperClass(Tcl_Interp *interp, XOTclClass *cl, XOTclClass *mcl, int isMeta) { XOTclClass *defaultClass = NULL; /*fprintf(stderr, "DefaultSuperClass cl %s, mcl %s, isMeta %d\n", className(cl), className(mcl), isMeta );*/ if (mcl) { int result; result = setInstVar(interp, (XOTclObject *)mcl, isMeta ? XOTclGlobalObjects[XOTE_DEFAULTMETACLASS] : XOTclGlobalObjects[XOTE_DEFAULTSUPERCLASS], NULL); if (result == TCL_OK) { Tcl_Obj *nameObj = Tcl_GetObjResult(interp); if (GetClassFromObj(interp, nameObj, &defaultClass, 0) != TCL_OK) { XOTclErrMsg(interp, "default superclass is not a class", TCL_STATIC); } /*fprintf(stderr, "DefaultSuperClass for %s got from var %s\n", className(cl), ObjStr(nameObj));*/ } else { XOTclClass *result; XOTclClasses *sc; /* check superclasses of metaclass */ /*fprintf(stderr, "DefaultSuperClass: search in superclasses starting with %p\n", cl->super);*/ for (sc = mcl->super; sc && sc->cl != cl; sc = sc->nextPtr) { /*fprintf(stderr, " ... check ismeta %d %s root mcl %d root cl %d\n", isMeta, className(sc->cl), sc->cl->object.flags & XOTCL_IS_ROOT_META_CLASS, sc->cl->object.flags & XOTCL_IS_ROOT_CLASS);*/ if (isMeta) { if (sc->cl->object.flags & XOTCL_IS_ROOT_META_CLASS) { return sc->cl; } } else { if (sc->cl->object.flags & XOTCL_IS_ROOT_CLASS) { return sc->cl; } } result = DefaultSuperClass(interp, cl, sc->cl, isMeta); if (result) { return result; } } } } else { /* during bootstrapping, there might be no meta class defined yet */ /*fprintf(stderr, "no meta class ismeta %d %s root mcl %d root cl %d\n", isMeta, className(cl), cl->object.flags & XOTCL_IS_ROOT_META_CLASS, cl->object.flags & XOTCL_IS_ROOT_CLASS );*/ return NULL; } return defaultClass; } /* * Cleanup class: remove filters, mixins, assertions, instances ... * and remove class from class hierarchy */ static void CleanupDestroyClass(Tcl_Interp *interp, XOTclClass *cl, int softrecreate, int recreate) { Tcl_HashSearch hSrch; Tcl_HashEntry *hPtr; XOTclClassOpt *clopt = cl->opt; XOTclClass *defaultClass = NULL; PRINTOBJ("CleanupDestroyClass", (XOTclObject *)cl); assert(softrecreate? recreate == 1 : 1); /*fprintf(stderr, "CleanupDestroyClass softrecreate=%d, recreate=%d, %p\n", softrecreate, recreate, clopt); */ /* do this even with no clopt, since the class might be used as a superclass of a per object mixin, so it has no clopt... */ MixinInvalidateObjOrders(interp, cl); FilterInvalidateObjOrders(interp, cl); if (clopt) { /* * Remove this class from all isClassMixinOf lists and clear the * class mixin list */ RemoveFromClassMixinsOf(clopt->id, clopt->classmixins); CmdListRemoveList(&clopt->classmixins, GuardDel); /*MixinInvalidateObjOrders(interp, cl);*/ CmdListRemoveList(&clopt->classfilters, GuardDel); /*FilterInvalidateObjOrders(interp, cl);*/ if (!recreate) { /* * Remove this class from all mixin lists and clear the isObjectMixinOf list */ RemoveFromMixins(clopt->id, clopt->isObjectMixinOf); CmdListRemoveList(&clopt->isObjectMixinOf, GuardDel); /* * Remove this class from all class mixin lists and clear the * isClassMixinOf list */ RemoveFromClassmixins(clopt->id, clopt->isClassMixinOf); CmdListRemoveList(&clopt->isClassMixinOf, GuardDel); } /* remove dependent filters of this class from all subclasses*/ FilterRemoveDependentFilterCmds(cl, cl); AssertionRemoveStore(clopt->assertions); clopt->assertions = NULL; #ifdef XOTCL_OBJECTDATA XOTclFreeObjectData(cl); #endif } Tcl_ForgetImport(interp, cl->nsPtr, "*"); /* don't destroy namespace imported objects */ NSCleanupNamespace(interp, cl->nsPtr); NSDeleteChildren(interp, cl->nsPtr); /*fprintf(stderr, " CleanupDestroyClass softrecreate %d\n", softrecreate);*/ if (!softrecreate) { defaultClass = DefaultSuperClass(interp, cl, cl->object.cl, 0); /* Reclass all instances of the current class the the appropriate most general class ("baseClass"). The most general class of a metaclass is ::xotcl::Class, the most general class of an object is ::xotcl::Object. Instances of metaclasses can be only reset to ::xotcl::Class (and not to ::xotcl::Object as in earlier versions), since otherwise their instances can't be deleted, because ::xotcl::Object has no method "dealloc". We do not have to reclassing in case, cl == ::xotcl::Object */ if ((cl->object.flags & XOTCL_IS_ROOT_CLASS) == 0) { XOTclClass *baseClass = IsMetaClass(interp, cl, 1) ? DefaultSuperClass(interp, cl, cl->object.cl, 1) : defaultClass; hPtr = &cl->instances ? Tcl_FirstHashEntry(&cl->instances, &hSrch) : 0; for (; hPtr; hPtr = Tcl_NextHashEntry(&hSrch)) { XOTclObject *inst = (XOTclObject*)Tcl_GetHashKey(&cl->instances, hPtr); /*fprintf(stderr, " inst %p %s flags %.6x id %p\n", inst, objectName(inst), inst->flags, inst->id);*/ if (inst && inst != (XOTclObject*)cl && !(inst->flags & XOTCL_DURING_DELETE) /*inst->id*/) { if (inst != &(baseClass->object)) { (void)RemoveInstance(inst, cl->object.cl); AddInstance(inst, baseClass); } } } } Tcl_DeleteHashTable(&cl->instances); MEM_COUNT_FREE("Tcl_InitHashTable", &cl->instances); } if ((clopt) && (!recreate)) { FREE(XOTclClassOpt, clopt); clopt = cl->opt = 0; } /* On a recreate, it might be possible that the newly created class has a different superclass. So we have to flush the precedence list on a recreate as well. */ FlushPrecedencesOnSubclasses(cl); while (cl->super) (void)RemoveSuper(cl, cl->super->cl); if (!softrecreate) { /* * flush all caches, unlink superclasses */ while (cl->sub) { XOTclClass *subClass = cl->sub->cl; (void)RemoveSuper(subClass, cl); /* if there are no more super classes add the Object * class as superclasses * -> don't do that for Object itself! */ if (subClass->super == 0 && (cl->object.flags & XOTCL_IS_ROOT_CLASS) == 0) AddSuper(subClass, defaultClass); } /*(void)RemoveSuper(cl, cl->super->cl);*/ } } /* * do class initialization & namespace creation */ static void CleanupInitClass(Tcl_Interp *interp, XOTclClass *cl, Tcl_Namespace *namespacePtr, int softrecreate, int recreate) { XOTclObject *obj = (XOTclObject*)cl; XOTclClass *defaultSuperclass; assert(softrecreate? recreate == 1 : 1); #ifdef OBJDELETION_TRACE fprintf(stderr, "+++ CleanupInitClass\n"); #endif /* * during init of Object and Class the theClass value is not set */ /* if (RUNTIME_STATE(interp)->theClass != 0) obj->type = RUNTIME_STATE(interp)->theClass; */ XOTclObjectSetClass(obj); cl->nsPtr = namespacePtr; if (!softrecreate) { /* subclasses are preserved during recreate, superclasses not (since the creation statement defined the superclass, might be different the second time) */ cl->sub = NULL; } cl->super = NULL; /* Look for a configured default superclass */ defaultSuperclass = DefaultSuperClass(interp, cl, cl->object.cl, 0); if (cl != defaultSuperclass) { AddSuper(cl, defaultSuperclass); } cl->color = WHITE; cl->order = NULL; if (!softrecreate) { Tcl_InitHashTable(&cl->instances, TCL_ONE_WORD_KEYS); MEM_COUNT_ALLOC("Tcl_InitHashTable", &cl->instances); } if (!recreate) { cl->opt = NULL; } } /* * class physical destruction */ static void PrimitiveCDestroy(ClientData clientData) { XOTclClass *cl = (XOTclClass*)clientData; XOTclObject *obj = (XOTclObject*)clientData; Tcl_Interp *interp; Tcl_Namespace *saved; PRINTOBJ("PrimitiveCDestroy", obj); /* * check and latch against recurrent calls with obj->teardown */ if (!obj || !obj->teardown) return; interp = obj->teardown; /* * Don't destroy, if the interpreted is destroyed already * e.g. TK calls Tcl_DeleteInterp directly, if Window is killed */ if (Tcl_InterpDeleted(interp)) return; /* * call and latch user destroy with obj->id if we haven't */ /*fprintf(stderr, "PrimitiveCDestroy %s flags %.6x\n", objectName(obj), obj->flags);*/ obj->teardown = 0; CleanupDestroyClass(interp, cl, 0, 0); /* * handoff the primitive teardown */ saved = cl->nsPtr; obj->teardown = interp; /* * class object destroy + physical destroy */ /*fprintf(stderr, "primitive cdestroy %p %.6x calls primitive odestroy\n", cl, flags);*/ PrimitiveODestroy(clientData); /*fprintf(stderr, "primitive cdestroy calls deletenamespace for obj %p, nsPtr %p flags %.6x\n", cl, saved, ((Namespace *)saved)->flags);*/ saved->clientData = NULL; XOTcl_DeleteNamespace(interp, saved); /*fprintf(stderr, "primitive cdestroy %p DONE\n",cl);*/ return; } /* * class init */ static void PrimitiveCInit(XOTclClass *cl, Tcl_Interp *interp, char *name) { TclCallFrame frame, *framePtr = &frame; Tcl_Namespace *nsPtr; /* * ensure that namespace is newly created during CleanupInitClass * ie. kill it, if it exists already */ if (Tcl_PushCallFrame(interp, (Tcl_CallFrame *)framePtr, RUNTIME_STATE(interp)->XOTclClassesNS, 0) != TCL_OK) return; nsPtr = NSGetFreshNamespace(interp, (ClientData)cl, name, 1); Tcl_PopCallFrame(interp); CleanupInitClass(interp, cl, nsPtr, 0, 0); return; } /* * class create: creation of namespace + class full name * calls class object creation */ static XOTclClass* PrimitiveCCreate(Tcl_Interp *interp, Tcl_Obj *nameObj, XOTclClass *class) { XOTclClass *cl = (XOTclClass*)ckalloc(sizeof(XOTclClass)); char *nameString = ObjStr(nameObj); unsigned length; XOTclObject *obj = (XOTclObject*)cl; /*fprintf(stderr, "CKALLOC Class %p %s\n", cl, nameString);*/ memset(cl, 0, sizeof(XOTclClass)); MEM_COUNT_ALLOC("XOTclObject/XOTclClass", cl); /* fprintf(stderr, " +++ CLS alloc: %s\n", nameString); */ assert(isAbsolutePathnameString); length = strlen(nameString); /* fprintf(stderr, "Class alloc %p '%s'\n", cl, nameString); */ /* check whether Object parent NS already exists, otherwise: error */ if (!NSCheckForParent(interp, nameString, length, class)) { ckfree((char *) cl); return 0; } obj->id = Tcl_CreateObjCommand(interp, nameString, XOTclObjDispatch, (ClientData)cl, tclDeletesObject); PrimitiveOInit(obj, interp, nameString, class); obj->cmdName = nameObj; /* convert cmdName to Tcl Obj of type cmdName */ /* Tcl_GetCommandFromObj(interp, obj->cmdName);*/ INCR_REF_COUNT(obj->cmdName); PrimitiveCInit(cl, interp, nameString+2); objTrace("PrimitiveCCreate", obj); return cl; } /* change XOTcl class conditionally; obj must not be NULL */ XOTCLINLINE static int changeClass(Tcl_Interp *interp, XOTclObject *obj, XOTclClass *cl) { assert(obj); /*fprintf(stderr, "changing %s to class %s ismeta %d\n", objectName(obj), className(cl), IsMetaClass(interp, cl, 1));*/ if (cl != obj->cl) { if (IsMetaClass(interp, cl, 1)) { /* Do not allow upgrading from a class to a meta-class (in other words, don't make an object to a class). To allow this, it would be necessary to reallocate the base structures. */ if (!IsMetaClass(interp, obj->cl, 1)) { return XOTclVarErrMsg(interp, "cannot turn object into a class", (char *) NULL); } } else { /* The target class is not a meta class. Changing meta-class to meta-class, or class to class, or object to object is fine, but upgrading/downgrading is not allowed */ /*fprintf(stderr, "target class %s not a meta class, am i a class %d\n", className(cl), XOTclObjectIsClass(obj) );*/ if (XOTclObjectIsClass(obj)) { return XOTclVarErrMsg(interp, "cannot turn class into an object ", (char *) NULL); } } (void)RemoveInstance(obj, obj->cl); AddInstance(obj, cl); MixinComputeDefined(interp, obj); FilterComputeDefined(interp, obj); } return TCL_OK; } /* * Undestroy the object, reclass it, and call "cleanup" afterwards */ static int doCleanup(Tcl_Interp *interp, XOTclObject *newObj, XOTclObject *classobj, int objc, Tcl_Obj *CONST objv[]) { int result; /* * Check whether we have a pending destroy on the object; if yes, clear it, * such that the recreated object and won't be destroyed on a POP */ MarkUndestroyed(newObj); /* * re-create, first ensure correct class for newObj */ result = changeClass(interp, newObj, (XOTclClass*) classobj); if (result == TCL_OK) { /* * dispatch "cleanup" */ result = callMethod((ClientData) newObj, interp, XOTclGlobalObjects[XOTE_CLEANUP], 2, 0, XOTCL_CM_NO_PROTECT); } return result; } /* * Std object initialization: * call parameter default values * apply "-" methods (call "configure" with given arguments) * call constructor "init", if it was not called before */ static int doObjInitialization(Tcl_Interp *interp, XOTclObject *obj, int objc, Tcl_Obj *CONST objv[]) { int result; Tcl_Obj *savedObjResult = Tcl_GetObjResult(interp); /* save the result */ INCR_REF_COUNT(savedObjResult); /* * clear INIT_CALLED flag */ obj->flags &= ~XOTCL_INIT_CALLED; /* * call configure methods (starting with '-') */ result = callMethod((ClientData) obj, interp, XOTclGlobalObjects[XOTE_CONFIGURE], objc, objv+2, 0); if (result != TCL_OK) { goto objinitexit; } /* * check, whether init was called already */ if (!(obj->flags & XOTCL_INIT_CALLED)) { int nobjc = 0; Tcl_Obj **nobjv, *resultObj = Tcl_GetObjResult(interp); /* * Call the user-defined constructor 'init' and pass the result of * configure to it as arguments */ INCR_REF_COUNT(resultObj); Tcl_ListObjGetElements(interp, resultObj, &nobjc, &nobjv); result = callMethod((ClientData) obj, interp, XOTclGlobalObjects[XOTE_INIT], nobjc+2, nobjv, XOTCL_CM_NO_PROTECT); obj->flags |= XOTCL_INIT_CALLED; DECR_REF_COUNT(resultObj); } if (result == TCL_OK) { Tcl_SetObjResult(interp, savedObjResult); } objinitexit: DECR_REF_COUNT(savedObjResult); return result; } /* * experimental resolver implementation -> not used at the moment */ #ifdef EXPERIMENTAL_CMD_RESOLVER static int XOTclResolveCmd(Tcl_Interp *interp, char *name, Tcl_Namespace *contextNsPtr, int flags, Tcl_Command *rPtr) { Tcl_Namespace *nsPtr[2], *cxtNsPtr; char *simpleName; register Tcl_HashEntry *entryPtr; register Tcl_Command cmd; register int search; /*fprintf(stderr, " ***%s->%s\n", contextNsPtr->fullName, name);*/ /* * Find the namespace(s) that contain the command. */ if (flags & TCL_GLOBAL_ONLY) { cxtNsPtr = Tcl_GetGlobalNamespace(interp); } else if (contextNsPtr) { cxtNsPtr = contextNsPtr; } else { cxtNsPtr = Tcl_GetCurrentNamespace(interp); } TclGetNamespaceForQualName(interp, name, (Namespace *) contextNsPtr, flags, &nsPtr[0], &nsPtr[1], &cxtNsPtr, &simpleName); /*fprintf(stderr, " ***Found %s, %s\n", nsPtr[0]->fullName, nsPtr[0]->fullName);*/ /* * Look for the command in the command table of its namespace. * Be sure to check both possible search paths: from the specified * namespace context and from the global namespace. */ cmd = NULL; for (search = 0; (search < 2) && (cmd == NULL); search++) { if (nsPtr[search] && simpleName) { cmdTable = Tcl_Namespace_cmdTable(nsPtr[search]); entryPtr = XOTcl_FindHashEntry(cmdTable, simpleName); if (entryPtr) { cmd = (Tcl_Command) Tcl_GetHashValue(entryPtr); } } } if (cmd) { Tcl_ObjCmdProc *objProc = Tcl_Command_objProc(cmd); if (NSisXOTclNamespace(cxtNsPtr) && objProc != XOTclObjDispatch && objProc != XOTclNextObjCmd && objProc != XOTclGetSelfObjCmd) { /* * the cmd is defined in an XOTcl object or class namespace, but * not an object & not self/next -> redispatch in * global namespace */ cmd = 0; nsPtr[0] = Tcl_GetGlobalNamespace(interp); if (nsPtr[0] && simpleName) { cmdTable = Tcl_Namespace_cmdTable(nsPtr[0]); if ((entryPtr = XOTcl_FindHashEntry(cmdTable, simpleName))) { cmd = (Tcl_Command) Tcl_GetHashValue(entryPtr); } } /* XOTclStackDump(interp); XOTclCallStackDump(interp); */ } *rPtr = cmd; return TCL_OK; } return TCL_CONTINUE; } static int XOTclResolveVar(Tcl_Interp *interp, char *name, Tcl_Namespace *context, Tcl_ResolvedVarInfo *rPtr) { /*fprintf(stderr, "Resolving %s in %s\n", name, context->fullName);*/ return TCL_CONTINUE; } #endif static int hasMetaProperty(Tcl_Interp *interp, XOTclClass *cl) { return cl->object.flags & XOTCL_IS_ROOT_META_CLASS; } static int IsBaseClass(XOTclClass *cl) { return cl->object.flags & (XOTCL_IS_ROOT_META_CLASS|XOTCL_IS_ROOT_CLASS); } static int IsMetaClass(Tcl_Interp *interp, XOTclClass *cl, int withMixins) { /* check if class is a meta-class */ XOTclClasses *pl, *checkList = NULL, *mixinClasses = NULL, *mc; int hasMCM = 0; /* is the class the most general meta-class? */ if (hasMetaProperty(interp, cl)) return 1; /* is the class a subclass of a meta-class? */ for (pl = ComputeOrder(cl, cl->order, Super); pl; pl = pl->nextPtr) { if (hasMetaProperty(interp, pl->cl)) return 1; } if (withMixins) { /* has the class metaclass mixed in? */ for (pl = ComputeOrder(cl, cl->order, Super); pl; pl = pl->nextPtr) { XOTclClassOpt *clopt = pl->cl->opt; if (clopt && clopt->classmixins) { MixinComputeOrderFullList(interp, &clopt->classmixins, &mixinClasses, &checkList, 0); } } /* TODO: should be a class of isMetaClass, or? */ for (mc=mixinClasses; mc; mc = mc->nextPtr) { /*fprintf(stderr, "- got %s\n", className(mc->cl));*/ /*if (isSubType(mc->cl, RUNTIME_STATE(interp)->theClass)) {*/ if (IsMetaClass(interp, mc->cl, 0)) { hasMCM = 1; break; } } XOTclClassListFree(mixinClasses); XOTclClassListFree(checkList); /*fprintf(stderr, "has MC returns %d, mixinClasses = %p\n", hasMCM, mixinClasses);*/ } return hasMCM; } static int isSubType(XOTclClass *subcl, XOTclClass *cl) { XOTclClasses *t; int success = 1; assert(cl && subcl); if (cl != subcl) { success = 0; for (t = ComputeOrder(subcl, subcl->order, Super); t && t->cl; t = t->nextPtr) { if (t->cl == cl) { success = 1; break; } } } return success; } static int hasMixin(Tcl_Interp *interp, XOTclObject *obj, XOTclClass *cl) { if (!(obj->flags & XOTCL_MIXIN_ORDER_VALID)) MixinComputeDefined(interp, obj); if ((obj->flags & XOTCL_MIXIN_ORDER_DEFINED_AND_VALID)) { XOTclCmdList *ml; for (ml = obj->mixinOrder; ml; ml = ml->nextPtr) { XOTclClass *mixin = XOTclGetClassFromCmdPtr(ml->cmdPtr); if (mixin == cl) { return 1; } } } return 0; } extern int XOTclCreateObject(Tcl_Interp *interp, Tcl_Obj *name, XOTcl_Class *class) { XOTclClass *cl = (XOTclClass*) class; int result; INCR_REF_COUNT(name); result = XOTclCallMethodWithArgs((ClientData)cl, interp, XOTclGlobalObjects[XOTE_CREATE], name, 1, 0, 0); DECR_REF_COUNT(name); return result; } extern int XOTclCreateClass(Tcl_Interp *interp, Tcl_Obj *name, XOTcl_Class *class) { XOTclClass *cl = (XOTclClass *) class; int result; INCR_REF_COUNT(name); result = XOTclCallMethodWithArgs((ClientData)cl, interp, XOTclGlobalObjects[XOTE_CREATE], name, 1, 0, 0); DECR_REF_COUNT(name); return result; } extern int XOTclCreate(Tcl_Interp *interp, XOTcl_Class *class, Tcl_Obj *name, ClientData clientData, int objc, Tcl_Obj *CONST objv[]) { XOTclClass *cl = (XOTclClass *) class; int result; INCR_REF_COUNT(name); ALLOC_ON_STACK(Tcl_Obj *, objc+2, ov); ov[0] = NULL; ov[1] = name; if (objc>0) { memcpy(ov+2, objv, sizeof(Tcl_Obj *)*objc); } result = createMethod(interp, cl, ObjStr(name), objc+2, ov); FREE_ON_STACK(ov); DECR_REF_COUNT(name); return result; } int XOTclDeleteObject(Tcl_Interp *interp, XOTcl_Object *obji) { XOTclObject *obj = (XOTclObject *) obji; return callDestroyMethod(interp, obj, 0); } int XOTclDeleteClass(Tcl_Interp *interp, XOTcl_Class *cli) { XOTclObject *obj = (XOTclObject *) cli; return callDestroyMethod(interp, obj, 0); } extern int XOTclUnsetInstVar2(XOTcl_Object *obji, Tcl_Interp *interp, char *name1, char *name2, int flgs) { XOTclObject *obj = (XOTclObject *) obji; int result; XOTcl_FrameDecls; XOTcl_PushFrameObj(interp, obj); if (obj->nsPtr) flgs |= TCL_NAMESPACE_ONLY; result = Tcl_UnsetVar2(interp, name1, name2, flgs); XOTcl_PopFrameObj(interp, obj); return result; } static int GetInstVarIntoCurrentScope(Tcl_Interp *interp, XOTclObject *obj, Tcl_Obj *varName, Tcl_Obj *newName) { Var *varPtr = NULL, *otherPtr = NULL, *arrayPtr; int new = 0, flgs = TCL_LEAVE_ERR_MSG; Tcl_CallFrame *varFramePtr; TclVarHashTable *tablePtr; XOTcl_FrameDecls; XOTcl_PushFrameObj(interp, obj); if (obj->nsPtr) { flgs = flgs|TCL_NAMESPACE_ONLY; } otherPtr = XOTclObjLookupVar(interp, varName, NULL, flgs, "define", /*createPart1*/ 1, /*createPart2*/ 1, &arrayPtr); XOTcl_PopFrameObj(interp, obj); if (otherPtr == NULL) { return XOTclVarErrMsg(interp, "can't make instvar ", ObjStr(varName), ": can't find variable on ", objectName(obj), (char *) NULL); } /* * if newName == NULL -> there is no alias, use varName * as target link name */ if (newName == NULL) { /* * Variable link into namespace cannot be an element in an array. * see Tcl_VariableObjCmd ... */ if (arrayPtr) { return XOTclVarErrMsg(interp, "can't make instvar ", ObjStr(varName), " on ", objectName(obj), ": variable cannot be an element in an array;", " use an alias or objeval.", (char *) NULL); } newName = varName; } #if 0 if (strstr(newName, "::")) { return XOTclVarErrMsg(interp, "variable name \"", newName, "\" illegal: must not contain namespace separator", (char *) NULL); } #endif varFramePtr = (Tcl_CallFrame *)Tcl_Interp_varFramePtr(interp); /* * If we are executing inside a Tcl procedure, create a local * variable linked to the new namespace variable "varName". */ if (varFramePtr && (Tcl_CallFrame_isProcCallFrame(varFramePtr) & FRAME_IS_PROC)) { varPtr = (Var *)CompiledLocalsLookup((CallFrame *)varFramePtr, ObjStr(newName)); if (varPtr == NULL) { /* look in frame's local var hashtable */ tablePtr = Tcl_CallFrame_varTablePtr(varFramePtr); if (tablePtr == NULL) { /*fprintf(stderr, "+++ create varTable in GetInstVarIntoCurrentScope\n");*/ Tcl_CallFrame_varTablePtr(varFramePtr) = tablePtr = VarHashTableCreate(); } varPtr = VarHashCreateVar(tablePtr, newName, &new); } /* * if we define an alias (newName != varName), be sure that * the target does not exist already */ if (!new) { /*fprintf(stderr, "GetIntoScope createalias\n");*/ if (varPtr == otherPtr) return XOTclVarErrMsg(interp, "can't instvar to variable itself", (char *) NULL); if (TclIsVarLink(varPtr)) { /* we try to make the same instvar again ... this is ok */ Var *linkPtr = valueOfVar(Var, varPtr, linkPtr); if (linkPtr == otherPtr) { return TCL_OK; } /*fprintf(stderr, "linkvar flags=%x\n", linkPtr->flags); Tcl_Panic("new linkvar %s... When does this happen?", ObjStr(newName), NULL);*/ /* We have already a variable with the same name imported from a different object. Get rid of this old variable */ VarHashRefCount(linkPtr)--; if (TclIsVarUndefined(linkPtr)) { CleanupVar(linkPtr, (Var *) NULL); } } else if (!TclIsVarUndefined(varPtr)) { return XOTclVarErrMsg(interp, "variable '", ObjStr(newName), "' exists already", (char *) NULL); } else if (TclIsVarTraced(varPtr)) { return XOTclVarErrMsg(interp, "variable '", ObjStr(newName), "' has traces: can't use for instvar", (char *) NULL); } } TclSetVarLink(varPtr); TclClearVarUndefined(varPtr); #if FORWARD_COMPATIBLE if (forwardCompatibleMode) { Var85 *vPtr = (Var85 *)varPtr; vPtr->value.linkPtr = (Var85 *)otherPtr; } else { varPtr->value.linkPtr = otherPtr; } #else varPtr->value.linkPtr = otherPtr; #endif VarHashRefCount(otherPtr)++; /* { Var85 *p = (Var85 *)varPtr; fprintf(stderr, "defining an alias var='%s' in obj %s fwd %d flags %x isLink %d isTraced %d isUndefined %d\n", ObjStr(newName), objectName(obj), forwardCompatibleMode, varFlags(varPtr), TclIsVarLink(varPtr), TclIsVarTraced(varPtr), TclIsVarUndefined(varPtr)); } */ } return TCL_OK; } extern int XOTclRemoveObjectMethod(Tcl_Interp *interp, XOTcl_Object *object, CONST char *methodName) { XOTclObject *obj = (XOTclObject*) object; AliasDelete(interp, obj->cmdName, methodName, 1); if (obj->opt) AssertionRemoveProc(obj->opt->assertions, methodName); if (obj->nsPtr) { int rc = NSDeleteCmd(interp, obj->nsPtr, methodName); if (rc < 0) return XOTclVarErrMsg(interp, objectName(obj), " cannot delete method '", methodName, "' of object ", objectName(obj), (char *) NULL); } return TCL_OK; } extern int XOTclRemoveClassMethod(Tcl_Interp *interp, XOTcl_Class *class, CONST char *methodName) { XOTclClass *cl = (XOTclClass*) class; XOTclClassOpt *opt = cl->opt; int rc; AliasDelete(interp, class->object.cmdName, methodName, 0); if (opt && opt->assertions) AssertionRemoveProc(opt->assertions, methodName); rc = NSDeleteCmd(interp, cl->nsPtr, methodName); if (rc < 0) return XOTclVarErrMsg(interp, className(cl), " cannot delete method '", methodName, "' of class ", className(cl), (char *) NULL); return TCL_OK; } /* * obj/cl ClientData setter/getter */ extern void XOTclSetObjClientData(XOTcl_Object *obji, ClientData data) { XOTclObject *obj = (XOTclObject*) obji; XOTclObjectOpt *opt = XOTclRequireObjectOpt(obj); opt->clientData = data; } extern ClientData XOTclGetObjClientData(XOTcl_Object *obji) { XOTclObject *obj = (XOTclObject*) obji; return (obj && obj->opt) ? obj->opt->clientData : 0; } extern void XOTclSetClassClientData(XOTcl_Class *cli, ClientData data) { XOTclClass *cl = (XOTclClass*) cli; XOTclRequireClassOpt(cl); cl->opt->clientData = data; } extern ClientData XOTclGetClassClientData(XOTcl_Class *cli) { XOTclClass *cl = (XOTclClass*) cli; return (cl && cl->opt) ? cl->opt->clientData : 0; } static int setInstVar(Tcl_Interp *interp, XOTclObject *obj, Tcl_Obj *name, Tcl_Obj *value) { Tcl_Obj *result; int flags = (obj->nsPtr) ? TCL_LEAVE_ERR_MSG|TCL_NAMESPACE_ONLY : TCL_LEAVE_ERR_MSG; XOTcl_FrameDecls; XOTcl_PushFrameObj(interp, obj); if (value == NULL) { result = Tcl_ObjGetVar2(interp, name, NULL, flags); } else { /*fprintf(stderr, "setvar in obj %s: name %s = %s\n", objectName(obj), ObjStr(name), ObjStr(value));*/ result = Tcl_ObjSetVar2(interp, name, NULL, value, flags); } XOTcl_PopFrameObj(interp, obj); if (result) { Tcl_SetObjResult(interp, result); return TCL_OK; } return TCL_ERROR; } static int XOTclSetterMethod(ClientData clientData, Tcl_Interp *interp, int objc, Tcl_Obj *CONST objv[]) { XOTclObject *obj = (XOTclObject*)clientData; if (!obj) return XOTclObjErrType(interp, objv[0], "Object"); if (objc > 2) return XOTclObjErrArgCnt(interp, obj->cmdName, objv[0], "?value?"); return setInstVar(interp, obj, objv[0], objc == 2 ? objv[1] : NULL); } static int forwardArg(Tcl_Interp *interp, int objc, Tcl_Obj *CONST objv[], Tcl_Obj *forwardArgObj, forwardCmdClientData *tcd, Tcl_Obj **out, Tcl_Obj **freeList, int *inputArg, int *mapvalue, int firstPosArg, int *outputincr) { char *forwardArgString = ObjStr(forwardArgObj), *p; int totalargs = objc + tcd->nr_args - 1; char c = *forwardArgString, c1; /* per default every forwardArgString from the processed list corresponds to exactly one forwardArgString in the computed final list */ *outputincr = 1; p = forwardArgString; /*fprintf(stderr, "ForwardArg: processing '%s'\n", forwardArgString);*/ if (c == '%' && *(forwardArgString+1) == '@') { char *remainder = NULL; long pos; forwardArgString += 2; pos = strtol(forwardArgString, &remainder, 0); /*fprintf(stderr, "strtol('%s) returned %ld '%s'\n", forwardArgString, pos, remainder);*/ if (forwardArgString == remainder && *forwardArgString == 'e' && !strncmp(forwardArgString, "end", 3)) { pos = -1; remainder += 3; } else if (pos < 0) { pos --; } if (forwardArgString == remainder || abs(pos) > totalargs) { return XOTclVarErrMsg(interp, "forward: invalid index specified in argument ", ObjStr(forwardArgObj), (char *) NULL); } if (!remainder || *remainder != ' ') { return XOTclVarErrMsg(interp, "forward: invaild syntax in '", ObjStr(forwardArgObj), "' use: %@ ", (char *) NULL); } forwardArgString = ++remainder; /* in case we address from the end, we reduct further to distinguish from -1 (void) */ if (pos<0) pos--; /*fprintf(stderr, "remainder = '%s' pos = %ld\n", remainder, pos);*/ *mapvalue = pos; forwardArgString = remainder; c = *forwardArgString; } if (c == '%') { Tcl_Obj *list = NULL, **listElements; int nrArgs = objc-1, nrPosArgs = objc-firstPosArg, nrElements = 0; char *firstActualArgument = nrArgs>0 ? ObjStr(objv[1]) : NULL; c = *++forwardArgString; c1 = *(forwardArgString+1); if (c == 's' && !strcmp(forwardArgString, "self")) { *out = tcd->obj->cmdName; } else if (c == 'p' && !strcmp(forwardArgString, "proc")) { char *methodName = ObjStr(objv[0]); /* if we dispatch a method via ".", we do not want to see the "." in the %proc, e.g. for the interceptor slots (such as .mixin, ... */ if (FOR_RESOLVER(methodName)) { *out = Tcl_NewStringObj(methodName + 1, -1); } else { *out = objv[0]; } } else if (c == '1' && (c1 == '\0' || c1 == ' ')) { if (c1 != '\0') { if (Tcl_ListObjIndex(interp, forwardArgObj, 1, &list) != TCL_OK) { return XOTclVarErrMsg(interp, "forward: %1 must be followed by a valid list, given: '", ObjStr(forwardArgObj), "'", (char *) NULL); } if (Tcl_ListObjGetElements(interp, list, &nrElements, &listElements) != TCL_OK) { return XOTclVarErrMsg(interp, "forward: %1 contains invalid list '", ObjStr(list), "'", (char *) NULL); } } else if (tcd->subcommands) { /* deprecated part */ if (Tcl_ListObjGetElements(interp, tcd->subcommands, &nrElements, &listElements) != TCL_OK) { return XOTclVarErrMsg(interp, "forward: %1 contains invalid list '", ObjStr(list), "'", (char *) NULL); } } /*fprintf(stderr, "nrElements=%d, nra=%d firstPos %d objc %d\n", nrElements, nrArgs, firstPosArg, objc);*/ if (nrElements > nrPosArgs) { /* insert default subcommand depending on number of arguments */ /*fprintf(stderr, "inserting listElements[%d] '%s'\n", nrPosArgs, ObjStr(listElements[nrPosArgs]));*/ *out = listElements[nrPosArgs]; } else if (objc<=1) { return XOTclObjErrArgCnt(interp, objv[0], NULL, "option"); } else { /*fprintf(stderr, "copying %%1: '%s'\n", ObjStr(objv[firstPosArg]));*/ *out = objv[firstPosArg]; *inputArg = firstPosArg+1; } } else if (c == '-') { char *firstElementString; int i, insertRequired, done = 0; /*fprintf(stderr, "process flag '%s'\n", firstActualArgument);*/ if (Tcl_ListObjGetElements(interp, forwardArgObj, &nrElements, &listElements) != TCL_OK) { return XOTclVarErrMsg(interp, "forward: '", forwardArgString, "' is not a valid list", (char *) NULL); } if (nrElements < 1 || nrElements > 2) { return XOTclVarErrMsg(interp, "forward: '", forwardArgString, "' must contain 1 or 2 arguments", (char *) NULL); } firstElementString = ObjStr(listElements[0]); firstElementString++; /* we skip the dash */ if (firstActualArgument && *firstActualArgument == '-') { /*fprintf(stderr, "we have a flag in first argument '%s'\n", firstActualArgument);*/ for (i = 1; i < firstPosArg; i++) { if (strcmp(firstElementString, ObjStr(objv[i])) == 0) { /*fprintf(stderr, "We have a MATCH for '%s' oldInputArg %d\n", forwardArgString, *inputArg);*/ *out = objv[i]; /* %1 will start at a different place. Proceed if necessary to firstPosArg */ if (*inputArg < firstPosArg) { *inputArg = firstPosArg; } done = 1; break; } } } if (!done) { /* We have a flag in the actual arguments that does not match. * We proceed to the actual arguments without dashes. */ if (*inputArg < firstPosArg) { *inputArg = firstPosArg; } /* * If the user requested we output the argument also when not * given in the argument list. */ if (nrElements == 2 && Tcl_GetIntFromObj(interp, listElements[1], &insertRequired) == TCL_OK && insertRequired) { /* no match, but insert of flag is required */ /*fprintf(stderr, "no match, but insert of %s required\n", firstElementString);*/ *out = Tcl_NewStringObj(firstElementString,-1); *outputincr = 1; goto add_to_freelist; } else { /* no match, no insert of flag required, we skip the * forwarder option and output nothing */ /*fprintf(stderr, "no match, nrElements %d insert req %d\n", nrElements, insertRequired);*/ *outputincr = 0; } } } else if (c == 'a' && !strncmp(forwardArgString, "argcl", 4)) { if (Tcl_ListObjIndex(interp, forwardArgObj, 1, &list) != TCL_OK) { return XOTclVarErrMsg(interp, "forward: %argclindex must by a valid list, given: '", forwardArgString, "'", (char *) NULL); } if (Tcl_ListObjGetElements(interp, list, &nrElements, &listElements) != TCL_OK) { return XOTclVarErrMsg(interp, "forward: %argclindex contains invalid list '", ObjStr(list), "'", (char *) NULL); } if (nrArgs >= nrElements) { return XOTclVarErrMsg(interp, "forward: not enough elements in specified list of ARGC argument ", forwardArgString, (char *) NULL); } *out = listElements[nrArgs]; } else if (c == '%') { Tcl_Obj *newarg = Tcl_NewStringObj(forwardArgString,-1); *out = newarg; goto add_to_freelist; } else { /* evaluating given command */ int result; /*fprintf(stderr, "evaluating '%s'\n", forwardArgString);*/ if ((result = Tcl_EvalEx(interp, forwardArgString, -1, 0)) != TCL_OK) return result; *out = Tcl_DuplicateObj(Tcl_GetObjResult(interp)); /*fprintf(stderr, "result = '%s'\n", ObjStr(*out));*/ goto add_to_freelist; } } else { if (p == forwardArgString) *out = forwardArgObj; else { Tcl_Obj *newarg = Tcl_NewStringObj(forwardArgString,-1); *out = newarg; goto add_to_freelist; } } return TCL_OK; add_to_freelist: if (!*freeList) { *freeList = Tcl_NewListObj(1, out); INCR_REF_COUNT(*freeList); } else Tcl_ListObjAppendElement(interp, *freeList, *out); return TCL_OK; } static int callForwarder(forwardCmdClientData *tcd, Tcl_Interp *interp, int objc, Tcl_Obj *CONST objv[]) { ClientData clientData; int result; XOTclObject *obj = tcd->obj; XOTcl_FrameDecls; if (tcd->verbose) { Tcl_Obj *cmd = Tcl_NewListObj(objc, objv); fprintf(stderr, "forwarder calls '%s'\n", ObjStr(cmd)); DECR_REF_COUNT(cmd); } if (tcd->objscope) { XOTcl_PushFrameObj(interp, obj); } if (tcd->objProc) { #if 1 || !defined(NRE) result = (*tcd->objProc)(tcd->clientData, interp, objc, objv); #else result = Tcl_NRCallObjProc(interp, tcd->objProc, tcd->clientData, objc, objv); #endif } else if (IsXOTclTclObj(interp, tcd->cmdName, (XOTclObject**)&clientData)) { /*fprintf(stderr, "XOTcl object %s, objc=%d\n", ObjStr(tcd->cmdName), objc);*/ result = XOTclObjDispatch(clientData, interp, objc, objv); } else { /*fprintf(stderr, "callForwarder: no XOTcl object %s\n", ObjStr(tcd->cmdName));*/ result = Tcl_EvalObjv(interp, objc, objv, 0); } if (tcd->objscope) { XOTcl_PopFrameObj(interp, obj); } if (result == TCL_ERROR && tcd && tcd->onerror) { Tcl_Obj *ov[2]; ov[0] = tcd->onerror; ov[1] = Tcl_GetObjResult(interp); INCR_REF_COUNT(ov[1]); /*Tcl_EvalObjEx(interp, tcd->onerror, TCL_EVAL_DIRECT);*/ Tcl_EvalObjv(interp, 2, ov, 0); DECR_REF_COUNT(ov[1]); } return result; } static int XOTclForwardMethod(ClientData clientData, Tcl_Interp *interp, int objc, Tcl_Obj *CONST objv[]) { forwardCmdClientData *tcd = (forwardCmdClientData *)clientData; int result, j, inputArg = 1, outputArg = 0; #if defined(TCL85STACK) /* no need to store varFramePtr in call frame for tcl85stack */ #else XOTclCallStackContent *cscPtr = CallStackGetTopFrame(interp, NULL); cscPtr->currentFramePtr = (Tcl_CallFrame *) Tcl_Interp_varFramePtr(interp); /*fprintf(stderr, "...setting currentFramePtr %p to %p (ForwardMethod)\n", RUNTIME_STATE(interp)->cs.top->currentFramePtr, (Tcl_CallFrame *) Tcl_Interp_varFramePtr(interp)); */ #endif if (!tcd || !tcd->obj) return XOTclObjErrType(interp, objv[0], "Object"); if (tcd->passthrough) { /* two short cuts for simple cases */ /* early binding, cmd *resolved, we have to care only for objscope */ return callForwarder(tcd, interp, objc, objv); } else if (!tcd->args && *(ObjStr(tcd->cmdName)) != '%') { /* we have ony to replace the method name with the given cmd name */ ALLOC_ON_STACK(Tcl_Obj*, objc, ov); /*fprintf(stderr, "+++ forwardMethod must subst \n");*/ memcpy(ov, objv, sizeof(Tcl_Obj *)*objc); ov[0] = tcd->cmdName; result = callForwarder(tcd, interp, objc, ov); FREE_ON_STACK(ov); return result; } else { Tcl_Obj **ov, *freeList=NULL; int outputincr, firstPosArg=1, totalargs = objc + tcd->nr_args + 3; ALLOC_ON_STACK(Tcl_Obj*, totalargs, OV); ALLOC_ON_STACK(int, totalargs, objvmap); /*fprintf(stderr, "+++ forwardMethod standard case, allocated %d args\n", totalargs);*/ ov = &OV[1]; if (tcd->needobjmap) { memset(objvmap, -1, sizeof(int)*totalargs); } /* the first argument is always the command, to which we forward */ if ((result = forwardArg(interp, objc, objv, tcd->cmdName, tcd, &ov[outputArg], &freeList, &inputArg, &objvmap[outputArg], firstPosArg, &outputincr)) != TCL_OK) { goto exitforwardmethod; } outputArg += outputincr; /* if we have nonpos args, determine the first pos arg position for %1 */ if (tcd->hasNonposArgs) { firstPosArg = objc; for (j=outputArg; jargs) { /* copy argument list from definition */ Tcl_Obj **listElements; int nrElements; Tcl_ListObjGetElements(interp, tcd->args, &nrElements, &listElements); for (j=0; jnr_subcommands=%d size=%d\n", objc, tcd->nr_subcommands, objc+ 2 );*/ if (objc-inputArg>0) { /*fprintf(stderr, " copying remaining %d args starting at [%d]\n", objc-inputArg, outputArg);*/ memcpy(ov+outputArg, objv+inputArg, sizeof(Tcl_Obj *)*(objc-inputArg)); } else { /*fprintf(stderr, " nothing to copy, objc=%d, inputArg=%d\n", objc, inputArg);*/ } if (tcd->needobjmap) { /* we have to set the adressing relative from the end; -2 means last, -3 element before last, etc. */ int max = objc + tcd->nr_args - inputArg; for (j=0; jneedobjmap) { for (j=0; jpos) { for(i=j; i>pos; i--) { /*fprintf(stderr, "...moving right %d to %d\n", i-1, i);*/ ov[i] = ov[i-1]; objvmap[i] = objvmap[i-1]; } } else { for(i=j; i %s\n", pos, ObjStr(tmp));*/ ov[pos] = tmp; objvmap[pos] = -1; } } if (tcd->prefix) { /* prepend a prefix for the subcommands to avoid name clashes */ Tcl_Obj *methodName = Tcl_DuplicateObj(tcd->prefix); Tcl_AppendObjToObj(methodName, ov[1]); ov[1] = methodName; INCR_REF_COUNT(ov[1]); } #if 0 for(j=0; jcmdName; result = callForwarder(tcd, interp, objc, ov); if (tcd->prefix) {DECR_REF_COUNT(ov[1]);} exitforwardmethod: if (freeList) {DECR_REF_COUNT(freeList);} FREE_ON_STACK(objvmap); FREE_ON_STACK(OV); } return result; } /* * copied from Tcl, since not exported */ static char * VwaitVarProc( ClientData clientData, /* Pointer to integer to set to 1. */ Tcl_Interp *interp, /* Interpreter containing variable. */ char *name1, /* Name of variable. */ char *name2, /* Second part of variable name. */ int flags) /* Information about what happened. */ { int *donePtr = (int *) clientData; *donePtr = 1; return (char *) NULL; } static int XOTclProcAliasMethod(ClientData clientData, Tcl_Interp *interp, int objc, Tcl_Obj *CONST objv[]) { AliasCmdClientData *tcd = (AliasCmdClientData *)clientData; XOTclObject *self = GetSelfObj(interp); char *methodName = ObjStr(objv[0]); /*TODO: resolve the 'real' command at the end of the imported cmd chain */ if (self == NULL) { return XOTclVarErrMsg(interp, "no object active for alias '", Tcl_GetCommandName(interp, tcd->aliasCmd), "'; don't call aliased methods via namespace paths", (char *) NULL); } return MethodDispatch((ClientData)self, interp, objc, objv, tcd->aliasedCmd, self, tcd->class, methodName, 0); } static int XOTclObjscopedMethod(ClientData clientData, Tcl_Interp *interp, int objc, Tcl_Obj *CONST objv[]) { AliasCmdClientData *tcd = (AliasCmdClientData *)clientData; XOTclObject *obj = tcd->obj; int result; XOTcl_FrameDecls; /*fprintf(stderr, "objscopedMethod obj=%p %s, ptr=%p\n", obj, objectName(obj), tcd->objProc);*/ XOTcl_PushFrameObj(interp, obj); #if 1 || !defined(NRE) result = (*tcd->objProc)(tcd->clientData, interp, objc, objv); #else result = Tcl_NRCallObjProc(interp, tcd->objProc, tcd->clientData, objc, objv); #endif XOTcl_PopFrameObj(interp, obj); return result; } static void aliasCmdDeleteProc(ClientData clientData) { AliasCmdClientData *tcd = (AliasCmdClientData *)clientData; ImportRef *refPtr, *prevPtr = NULL; /* * Since we just get the clientData, we have to obtain interp, * object, methodName and per-object from tcd; the obj might be * deleted already. We need as well at least still the global * namespace. */ if (tcd->interp && ((Interp *)(tcd->interp))->globalNsPtr && RUNTIME_STATE(tcd->interp)->exitHandlerDestroyRound != XOTCL_EXITHANDLER_ON_PHYSICAL_DESTROY) { CONST char *methodName = Tcl_GetCommandName(tcd->interp, tcd->aliasCmd); AliasDelete(tcd->interp, tcd->cmdName, methodName, tcd->class == NULL); } /*fprintf(stderr, "aliasCmdDeleteProc\n");*/ if (tcd->cmdName) {DECR_REF_COUNT(tcd->cmdName);} if (tcd->aliasedCmd) { Command *aliasedCmd = (Command *)(tcd->aliasedCmd); /* * Clear the aliasCmd from the imported-ref chain of the aliased * (or real) cmd. This widely resembles what happens in the * DeleteImportedCmd() (see tclNamesp.c), however, as we do not * provide for ImportedCmdData client data etc., we cannot * directly use it. */ for (refPtr = aliasedCmd->importRefPtr; refPtr; refPtr = refPtr->nextPtr) { if (refPtr->importedCmdPtr == (Command *) tcd->aliasCmd) { if (prevPtr == NULL) { aliasedCmd->importRefPtr = refPtr->nextPtr; } else { prevPtr->nextPtr = refPtr->nextPtr; } ckfree((char *) refPtr); break; } prevPtr = refPtr; } } FREE(AliasCmdClientData, tcd); } typedef enum {NO_DASH, SKALAR_DASH, LIST_DASH} dashArgType; static dashArgType isDashArg(Tcl_Interp *interp, Tcl_Obj *obj, int firstArg, char **methodName, int *objc, Tcl_Obj **objv[]) { char *flag; static Tcl_ObjType CONST86 *listType = NULL; assert(obj); /* fetch list type, if not set already; if used on more places, this should be moved into the interpreter state */ if (listType == NULL) { static XOTclMutex initMutex = 0; XOTclMutexLock(&initMutex); if (listType == NULL) { listType = Tcl_GetObjType("list"); /*fprintf(stderr, "fetching listType=%p\n", listType);*/ } XOTclMutexUnlock(&initMutex); } if (obj->typePtr == listType) { if (Tcl_ListObjGetElements(interp, obj, objc, objv) == TCL_OK && *objc>1) { flag = ObjStr(*objv[0]); /*fprintf(stderr, "we have a list starting with '%s'\n", flag);*/ if (*flag == '-' || *flag == '.') { /* TODO '.' needed? */ *methodName = flag+1; return LIST_DASH; } } } flag = ObjStr(obj); /*fprintf(stderr, "we have a scalar '%s'\n", flag);*/ if ((*flag == '-') && isalpha(*((flag)+1))) { if (firstArg) { /* if the argument contains a space, try to split */ char *p= flag+1; while (*p && *p != ' ') p++; if (*p == ' ') { if (Tcl_ListObjGetElements(interp, obj, objc, objv) == TCL_OK) { *methodName = ObjStr(*objv[0]); if (**methodName == '-') {(*methodName)++ ;} return LIST_DASH; } } } *methodName = flag+1; *objc = 1; return SKALAR_DASH; } return NO_DASH; } static int callConfigureMethod(Tcl_Interp *interp, XOTclObject *obj, char *methodName, int argc, Tcl_Obj *CONST argv[]) { int result; Tcl_Obj *method = Tcl_NewStringObj(methodName,-1); /* fprintf(stderr, "callConfigureMethod method %s->'%s' level %d, argc %d\n", objectName(obj), methodName, level, argc);*/ if (isInitString(methodName)) { obj->flags |= XOTCL_INIT_CALLED; } Tcl_ResetResult(interp); INCR_REF_COUNT(method); result = callMethod((ClientData)obj, interp, method, argc, argv, XOTCL_CM_NO_UNKNOWN); DECR_REF_COUNT(method); /*fprintf(stderr, "method '%s' called args: %d o=%p, result=%d %d\n", methodName, argc+1, obj, result, TCL_ERROR);*/ if (result != TCL_OK) { Tcl_Obj *res = Tcl_DuplicateObj(Tcl_GetObjResult(interp)); /* save the result */ INCR_REF_COUNT(res); XOTclVarErrMsg(interp, ObjStr(res), " during '", objectName(obj), " ", methodName, "'", (char *) NULL); DECR_REF_COUNT(res); } return result; } /* * class method implementations */ static int isRootNamespace(Tcl_Interp *interp, Tcl_Namespace *nsPtr) { XOTclClasses *os; for (os = RUNTIME_STATE(interp)->rootClasses; os; os = os->nextPtr) { Tcl_Command cmd = os->cl->object.id; if ((Tcl_Namespace *)((Command *)cmd)->nsPtr == nsPtr) { return 1; } } return 0; } static Tcl_Namespace * callingNameSpace(Tcl_Interp *interp) { Tcl_CallFrame *framePtr; Tcl_Namespace *nsPtr; /*tcl85showStack(interp);*/ /* * Find last incovation outside the XOTcl system namespaces. For * example, the pre defined slot handlers for relations (defined in * the ::xotcl namespace) handle mixin and class * registration. etc. If we would use this namespace, we would * resolve non-fully-qualified names against ::xotcl). */ for (framePtr = nonXotclObjectProcFrame((Tcl_CallFrame *)Tcl_Interp_varFramePtr(interp)); framePtr; framePtr = Tcl_CallFrame_callerVarPtr(framePtr)) { nsPtr = Tcl_CallFrame_nsPtr(framePtr); if (isRootNamespace(interp, nsPtr)) { /*fprintf(stderr, "... %p skip %s\n", framePtr, nsPtr->fullName);*/ continue; } /*fprintf(stderr, "... %p take %s\n", framePtr, nsPtr->fullName); */ break; } if (!framePtr) { nsPtr = Tcl_GetGlobalNamespace(interp); } /*fprintf(stderr, " **** callingNameSpace: returns %p %s framePtr %p\n", nsPtr, nsPtr?nsPtr->fullName:"(null)", framePtr);*/ return nsPtr; } static int createMethod(Tcl_Interp *interp, XOTclClass *cl, char *specifiedName, int objc, Tcl_Obj *CONST objv[]) { XOTclObject *newObj = NULL; Tcl_Obj *nameObj, *tmpObj = NULL; int result; char *objName = specifiedName; ALLOC_ON_STACK(Tcl_Obj*, objc, tov); memcpy(tov, objv, sizeof(Tcl_Obj *)*(objc)); /* * complete the name if it is not absolute */ if (!isAbsolutePath(objName)) { tmpObj = NameInNamespaceObj(interp, objName, callingNameSpace(interp)); objName = ObjStr(tmpObj); /*fprintf(stderr, " **** fixed name is '%s'\n", objName);*/ INCR_REF_COUNT(tmpObj); tov[1] = tmpObj; } /* * Check whether we have to call recreate (i.e. when the * object exists already) */ newObj = XOTclpGetObject(interp, objName); /*fprintf(stderr, "+++ createspecifiedName '%s', objName '%s', newObj=%p ismeta(%s) %d, ismeta(%s) %d\n", specifiedName, objName, newObj, className(cl), IsMetaClass(interp, cl, 1), newObj ? ObjStr(newobj->cl->object.cmdName) : "NULL", newObj ? IsMetaClass(interp, newObj->cl, 1) : 0 );*/ /* don't allow to - recreate an object as a class, and to - recreate a class as an object In these clases, we use destroy + create instead of recrate. */ if (newObj && (IsMetaClass(interp, cl, 1) == IsMetaClass(interp, newObj->cl, 1))) { /* fprintf(stderr, "%%%% recreate, call recreate method ... %s, objc=%d\n", ObjStr(tov[1]), objc+1);*/ /* call recreate --> initialization */ result = callMethod((ClientData) cl, interp, XOTclGlobalObjects[XOTE_RECREATE], objc+1, tov+1, XOTCL_CM_NO_PROTECT); if (result != TCL_OK) goto create_method_exit; Tcl_SetObjResult(interp, newObj->cmdName); nameObj = newObj->cmdName; objTrace("RECREATE", newObj); } else { /* * newObj might exist here, but will be automatically destroyed by * alloc */ /*fprintf(stderr, "alloc ... %s\n", ObjStr(tov[1]));*/ result = callMethod((ClientData) cl, interp, XOTclGlobalObjects[XOTE_ALLOC], 3, tov+1, 0); if (result != TCL_OK) goto create_method_exit; nameObj = Tcl_GetObjResult(interp); if (GetObjectFromObj(interp, nameObj, &newObj) != TCL_OK) { result = XOTclErrMsg(interp, "couldn't find result of alloc", TCL_STATIC); goto create_method_exit; } /*(void)RemoveInstance(newObj, newObj->cl);*/ /* TODO needed? remove? */ AddInstance(newObj, cl); objTrace("CREATE", newObj); /* in case, the object is destroyed during initialization, we incr refcount */ INCR_REF_COUNT(nameObj); result = doObjInitialization(interp, newObj, objc, objv); DECR_REF_COUNT(nameObj); } create_method_exit: /*fprintf(stderr, "create -- end ... %s => %d\n", ObjStr(tov[1]), result);*/ if (tmpObj) {DECR_REF_COUNT(tmpObj);} FREE_ON_STACK(tov); return result; } /*********************************** * argument parser ***********************************/ #include "tclAPI.h" static int ArgumentError(Tcl_Interp *interp, char *errorMsg, XOTclParam CONST *paramPtr, Tcl_Obj *cmdNameObj, Tcl_Obj *methodNameObj) { Tcl_Obj *argStringObj = Tcl_NewStringObj("", 0); XOTclParam CONST *pPtr; for (pPtr = paramPtr; pPtr->name; pPtr++) { if (pPtr != paramPtr) { Tcl_AppendToObj(argStringObj, " ", 1); } if (pPtr->flags & XOTCL_ARG_REQUIRED) { Tcl_AppendToObj(argStringObj, pPtr->name, -1); } else { Tcl_AppendToObj(argStringObj, "?", 1); Tcl_AppendToObj(argStringObj, pPtr->name, -1); if (pPtr->nrArgs >0) { Tcl_AppendToObj(argStringObj, " arg", 4); } Tcl_AppendToObj(argStringObj, "?", 1); } } XOTclObjWrongArgs(interp, errorMsg, cmdNameObj, methodNameObj, ObjStr(argStringObj)); DECR_REF_COUNT(argStringObj); return TCL_ERROR; } static int ArgumentDefaults(parseContext *pcPtr, Tcl_Interp *interp, XOTclParam CONST *ifd, int nrParams) { XOTclParam CONST *pPtr; int i; for (pPtr = ifd, i=0; i %p %p, default %s\n", pPtr->name, pPtr->flags & XOTCL_ARG_REQUIRED, pcPtr->clientData[i], pcPtr->objv[i], pPtr->defaultValue ? ObjStr(pPtr->defaultValue) : "NONE");*/ if (pcPtr->objv[i]) { /* we got an actual value, which was already checked by objv parser */ /*fprintf(stderr, "setting passed value for %s to '%s'\n", pPtr->name, ObjStr(pcPtr->objv[i]));*/ if (pPtr->converter == convertToSwitch) { int bool; Tcl_GetBooleanFromObj(interp, pPtr->defaultValue, &bool); pcPtr->objv[i] = Tcl_NewBooleanObj(!bool); } } else { /* no valued passed, check if default is available */ if (pPtr->defaultValue) { Tcl_Obj *newValue = pPtr->defaultValue; ClientData checkedData; /* we have a default, do we have to subst it? */ if (pPtr->flags & XOTCL_ARG_SUBST_DEFAULT) { int result = SubstValue(interp, pcPtr->obj, &newValue); if (result != TCL_OK) { return result; } /*fprintf(stderr, "attribute %s default %p %s => %p '%s'\n", pPtr->name, pPtr->defaultValue, ObjStr(pPtr->defaultValue), newValue, ObjStr(newValue));*/ /* the according DECR is performed by parseContextRelease() */ INCR_REF_COUNT(newValue); pcPtr->flags[i] |= XOTCL_PC_MUST_DECR; pcPtr->mustDecr = 1; } pcPtr->objv[i] = newValue; /*fprintf(stderr, "==> setting default value '%s' for var '%s' flag %d type %s conv %p\n", ObjStr(newValue), pPtr->name, pPtr->flags & XOTCL_ARG_INITCMD, pPtr->type, pPtr->converter);*/ /* Check the default value, unless we have an INITCMD or METHOD */ if ((pPtr->flags & (XOTCL_ARG_INITCMD|XOTCL_ARG_METHOD)) == 0) { if ((*pPtr->converter)(interp, newValue, pPtr, &checkedData) != TCL_OK) { return TCL_ERROR; } } } else if (pPtr->flags & XOTCL_ARG_REQUIRED) { return XOTclVarErrMsg(interp, pcPtr->obj ? objectName(pcPtr->obj) : "", pcPtr->obj ? " " : "", ObjStr(pcPtr->full_objv[0]), ": required argument '", pPtr->nameObj ? ObjStr(pPtr->nameObj) : pPtr->name, "' is missing", (char *) NULL); } else { /* Use as dummy default value an arbitrary symbol, which must not be * returned to the Tcl level level; this value is * unset later by unsetUnknownArgs */ pcPtr->objv[i] = XOTclGlobalObjects[XOTE___UNKNOWN__]; } } } return TCL_OK; } static int ArgumentParse(Tcl_Interp *interp, int objc, Tcl_Obj *CONST objv[], XOTclObject *obj, Tcl_Obj *procNameObj, XOTclParam CONST *paramPtr, int nrParams, parseContext *pcPtr) { int i, o, flagCount, nrReq = 0, nrOpt = 0, dashdash = 0, nrDashdash = 0; /* todo benchmark with and without CONST */ XOTclParam CONST *pPtr; parseContextInit(pcPtr, nrParams, obj, procNameObj); #if defined(PARSE_TRACE) fprintf(stderr, "BEGIN (%d) [0]%s ", objc, ObjStr(procNameObj)); for (o=1; oname && o < objc;) { #if defined(PARSE_TRACE_FULL) fprintf(stderr, "... (%d) processing [%d]: '%s' %s\n", i, o, pPtr->name, pPtr->flags & XOTCL_ARG_REQUIRED ? "req":"not req"); #endif flagCount = 0; if (*pPtr->name == '-') { int p, found; char *objStr; /* * We expect now a non-positional (named) parameter, starting * with a "-"; such arguments can be given in an arbitrary order */ for (p = o; pname && *nppPtr->name == '-'; nppPtr ++) { if (strcmp(objStr, nppPtr->name) == 0) { /*fprintf(stderr, "... flag '%s' o=%d p=%d, objc=%d nrArgs %d\n", objStr, o, p, objc, nppPtr->nrArgs);*/ if (nppPtr->flags & XOTCL_ARG_REQUIRED) nrReq++; else nrOpt++; if (nppPtr->nrArgs == 0) { pcPtr->clientData[nppPtr-paramPtr] = (ClientData)1; /* the flag was given */ pcPtr->objv[nppPtr-paramPtr] = XOTclGlobalObjects[XOTE_ONE]; } else { /* we assume for now, nrArgs is at most 1 */ o++; p++; if (nppPtr->flags & XOTCL_ARG_REQUIRED) nrReq++; else nrOpt++; if (o < objc) { #if defined(PARSE_TRACE_FULL) fprintf(stderr, "... setting cd[%d] '%s' = %s (%d) %s converter %p\n", i, nppPtr->name, ObjStr(objv[p]), nppPtr->nrArgs, nppPtr->flags & XOTCL_ARG_REQUIRED ? "req":"not req", nppPtr->converter); #endif if ((*nppPtr->converter)(interp, objv[p], nppPtr, &pcPtr->clientData[nppPtr-paramPtr]) != TCL_OK) { return TCL_ERROR; } pcPtr->objv[nppPtr-paramPtr] = objv[p]; } else { Tcl_ResetResult(interp); Tcl_AppendResult(interp, "Argument for parameter '", objStr, "' expected", (char *) NULL); return TCL_ERROR; } } flagCount++; found = 1; break; } } if (!found) { /* we did not find the specified flag, the thing starting with a '-' must be an argument */ break; } } } /*fprintf(stderr, "... we found %d flags\n", flagCount);*/ /* skip in parameter definition until the end of the switches */ while (pPtr->name && *pPtr->name == '-') {pPtr++, i++;}; /* under the assumption, flags have no arguments */ o += flagCount; /* * check double dash -- */ if (oflags & XOTCL_ARG_REQUIRED) nrReq++; else nrOpt++; /*fprintf(stderr, "... arg %s req %d converter %p try to set on %d: '%s' convertViaCmd %p\n", pPtr->name, pPtr->flags & XOTCL_ARG_REQUIRED, pPtr->converter, i, ObjStr(objv[o]), convertViaCmd);*/ if ((*pPtr->converter)(interp, objv[o], pPtr, &pcPtr->clientData[i]) != TCL_OK) { return TCL_ERROR; } /* * objv is always passed via pcPtr->objv */ #if defined(PARSE_TRACE_FULL) fprintf(stderr, "... setting %s pPtr->objv[%d] to [%d]'%s' converter %p\n", pPtr->name, i, o, ObjStr(objv[o]), pPtr->converter); #endif pcPtr->objv[i] = objv[o]; o++; i++; pPtr++; } } pcPtr->lastobjc = pPtr->name ? o : o-1; pcPtr->objc = i + 1; /* Process all args until end of parameter definitions to get correct counters */ while (pPtr->name) { if (pPtr->flags & XOTCL_ARG_REQUIRED) nrReq++; else nrOpt++; pPtr++; } /* is last argument a vararg? */ pPtr--; if (pPtr->converter == convertToNothing) { pcPtr->varArgs = 1; /*fprintf(stderr, "last arg of proc '%s' is varargs\n", ObjStr(procNameObj));*/ } /* handle missing or unexpected arguments */ if (pcPtr->lastobjc < nrReq) { return ArgumentError(interp, "not enough arguments:", paramPtr, NULL, procNameObj); /* for methods and cmds */ } if (!pcPtr->varArgs && objc-nrDashdash-1 > nrReq + nrOpt) { return ArgumentError(interp, "too many arguments:", paramPtr, NULL, procNameObj); /* for methods and cmds */ } return ArgumentDefaults(pcPtr, interp, paramPtr, nrParams); } /*********************************** * Begin result setting commands * (essentially List*() and support ***********************************/ #if defined(PRE85) static int ListKeys(Tcl_Interp *interp, Tcl_HashTable *table, char *pattern) { Tcl_HashEntry *hPtr; char *key; if (pattern && noMetaChars(pattern)) { hPtr = table ? XOTcl_FindHashEntry(table, pattern) : 0; if (hPtr) { key = Tcl_GetHashKey(table, hPtr); Tcl_SetResult(interp, key, TCL_VOLATILE); } else { Tcl_SetObjResult(interp, XOTclGlobalObjects[XOTE_EMPTY]); } } else { Tcl_Obj *list = Tcl_NewListObj(0, NULL); Tcl_HashSearch hSrch; hPtr = table ? Tcl_FirstHashEntry(table, &hSrch) : 0; for (; hPtr; hPtr = Tcl_NextHashEntry(&hSrch)) { key = Tcl_GetHashKey(table, hPtr); if (!pattern || Tcl_StringMatch(key, pattern)) { Tcl_ListObjAppendElement(interp, list, Tcl_NewStringObj(key,-1)); } } Tcl_SetObjResult(interp, list); } return TCL_OK; } #endif #if !defined(PRE85) || FORWARD_COMPATIBLE static int ListVarKeys(Tcl_Interp *interp, Tcl_HashTable *tablePtr, char *pattern) { Tcl_HashEntry *hPtr; if (pattern && noMetaChars(pattern)) { Tcl_Obj *patternObj = Tcl_NewStringObj(pattern, -1); INCR_REF_COUNT(patternObj); hPtr = tablePtr ? XOTcl_FindHashEntry(tablePtr, (char *)patternObj) : 0; if (hPtr) { Var *val = VarHashGetValue(hPtr); Tcl_SetObjResult(interp, VarHashGetKey(val)); } else { Tcl_SetObjResult(interp, XOTclGlobalObjects[XOTE_EMPTY]); } DECR_REF_COUNT(patternObj); } else { Tcl_Obj *list = Tcl_NewListObj(0, NULL); Tcl_HashSearch hSrch; hPtr = tablePtr ? Tcl_FirstHashEntry(tablePtr, &hSrch) : 0; for (; hPtr; hPtr = Tcl_NextHashEntry(&hSrch)) { Var *val = VarHashGetValue(hPtr); Tcl_Obj *key = VarHashGetKey(val); if (!pattern || Tcl_StringMatch(ObjStr(key), pattern)) { Tcl_ListObjAppendElement(interp, list, key); } } Tcl_SetObjResult(interp, list); } return TCL_OK; } #endif static Tcl_Command GetOriginalCommand(Tcl_Command cmd) /* The imported command for which the original * command should be returned. */ { Tcl_Command importedCmd; while (1) { /* dereference the namespace import reference chain */ if ((importedCmd = TclGetOriginalCommand(cmd))) { cmd = importedCmd; } /* dereference the XOtcl alias chain */ if (Tcl_Command_deleteProc(cmd) == aliasCmdDeleteProc) { AliasCmdClientData *tcd = (AliasCmdClientData *)Tcl_Command_objClientData(cmd); cmd = tcd->aliasedCmd; continue; } break; } return cmd; } static int ListProcBody(Tcl_Interp *interp, Proc *procPtr, char *methodName) { if (procPtr) { char *body = ObjStr(procPtr->bodyPtr); Tcl_SetObjResult(interp, Tcl_NewStringObj(StripBodyPrefix(body), -1)); return TCL_OK; } return XOTclErrBadVal(interp, "info body", "a tcl method name", methodName); } static int ListCmdParams(Tcl_Interp *interp, Tcl_Command cmd, char *methodName, int withVarnames) { Proc *procPtr = GetTclProcFromCommand(cmd); if (procPtr) { XOTclParamDefs *paramDefs = procPtr ? ParamDefsGet((Tcl_Command)procPtr->cmdPtr) : NULL; Tcl_Obj *list; if (paramDefs) { /* * Obtain parameter info from paramDefs */ list = withVarnames ? ParamDefsList(interp, paramDefs) : ParamDefsFormat(interp, paramDefs); } else { /* * Obtain parameter info from compiled locals */ CompiledLocal *args = procPtr->firstLocalPtr; list = Tcl_NewListObj(0, NULL); for ( ; args; args = args->nextPtr) { Tcl_Obj *innerlist; if (!TclIsCompiledLocalArgument(args)) { continue; } innerlist = Tcl_NewListObj(0, NULL); Tcl_ListObjAppendElement(interp, innerlist, Tcl_NewStringObj(args->name, -1)); if (!withVarnames && args->defValuePtr) { Tcl_ListObjAppendElement(interp, innerlist, args->defValuePtr); } Tcl_ListObjAppendElement(interp, list, innerlist); } } Tcl_SetObjResult(interp, list); return TCL_OK; } else if (cmd) { /* * If a command is found for the object|class, check whether we * find the parameter definitions for the C-defined method. */ methodDefinition *mdPtr = &method_definitions[0]; for (; mdPtr->methodName; mdPtr ++) { /*fprintf(stderr, "... comparing %p with %p => %s\n", ((Command *)cmd)->objProc, mdPtr->proc, mdPtr->methodName);*/ if (((Command *)cmd)->objProc == mdPtr->proc) { XOTclParamDefs paramDefs = {mdPtr->paramDefs, mdPtr->nrParameters}; Tcl_Obj *list = withVarnames ? ParamDefsList(interp, ¶mDefs) : ParamDefsFormat(interp, ¶mDefs); Tcl_SetObjResult(interp, list); return TCL_OK; } } if (((Command *)cmd)->objProc == XOTclForwardMethod) { return XOTclVarErrMsg(interp, "info params: could not obtain parameter definition for forwarder '", methodName, "'", (char *) NULL); } else { return XOTclVarErrMsg(interp, "info params: could not obtain parameter definition for method '", methodName, "'", (char *) NULL); } } return XOTclErrBadVal(interp, "info params", "a method name", methodName); } static void AppendForwardDefinition(Tcl_Interp *interp, Tcl_Obj *listObj, forwardCmdClientData *tcd) { if (tcd->prefix) { Tcl_ListObjAppendElement(interp, listObj, Tcl_NewStringObj("-methodprefix",-1)); Tcl_ListObjAppendElement(interp, listObj, tcd->prefix); } if (tcd->subcommands) { Tcl_ListObjAppendElement(interp, listObj, Tcl_NewStringObj("-default",-1)); Tcl_ListObjAppendElement(interp, listObj, tcd->subcommands); } if (tcd->objscope) { Tcl_ListObjAppendElement(interp, listObj, Tcl_NewStringObj("-objscope",-1)); } Tcl_ListObjAppendElement(interp, listObj, tcd->cmdName); if (tcd->args) { Tcl_Obj **args; int nrArgs, i; Tcl_ListObjGetElements(interp, tcd->args, &nrArgs, &args); for (i=0; icmdName); if (withPer_object) { Tcl_ListObjAppendElement(interp, listObj, Tcl_NewStringObj("object",-1)); } Tcl_ListObjAppendElement(interp, listObj, Tcl_NewStringObj(registerCmdName,-1)); if (withObjscope) { Tcl_ListObjAppendElement(interp, listObj, Tcl_NewStringObj("-objscope",-1)); } Tcl_ListObjAppendElement(interp, listObj, Tcl_NewStringObj(methodName,-1)); } static int ListMethodName(Tcl_Interp *interp, XOTclObject *object, int withPer_object, CONST char *methodName) { Tcl_Obj *resultObj = Tcl_NewStringObj(withPer_object ? "" : "::xotcl::classes", -1); Tcl_AppendObjToObj(resultObj, object->cmdName); Tcl_AppendStringsToObj(resultObj, "::", methodName, (char *) NULL); Tcl_SetObjResult(interp, resultObj); return TCL_OK; } static int ListMethod(Tcl_Interp *interp, XOTclObject *object, char *methodName, Tcl_Command cmd, int subcmd, int withPer_object) { /*fprintf(stderr, "ListMethodtype %s %s %p subcmd %d per-object %d\n", objectName(object), methodName, cmd, subcmd, withPer_object);*/ if (!cmd) { Tcl_SetObjResult(interp, XOTclGlobalObjects[XOTE_EMPTY]); } else { Tcl_ObjCmdProc *procPtr = Tcl_Command_objProc(cmd); int outputPerObject = 0; Tcl_Obj *resultObj; if (!XOTclObjectIsClass(object)) { withPer_object = 1; /* don't output "object" modifier, if object is not a class */ outputPerObject = 0; } else { outputPerObject = withPer_object; } switch (subcmd) { case InfomethodsubcmdNameIdx: { return ListMethodName(interp, object, withPer_object, methodName); } case InfomethodsubcmdArgsIdx: { Tcl_Command importedCmd = GetOriginalCommand(cmd); return ListCmdParams(interp, importedCmd, methodName, 1); } case InfomethodsubcmdParameterIdx: { Tcl_Command importedCmd = GetOriginalCommand(cmd); return ListCmdParams(interp, importedCmd, methodName, 0); } case InfomethodsubcmdPreconditionIdx: { XOTclProcAssertion *procs; if (withPer_object) { procs = object->opt ? AssertionFindProcs(object->opt->assertions, methodName) : NULL; } else { XOTclClass *class = (XOTclClass *)object; procs = class->opt ? AssertionFindProcs(class->opt->assertions, methodName) : NULL; } if (procs) Tcl_SetObjResult(interp, AssertionList(interp, procs->pre)); return TCL_OK; } case InfomethodsubcmdPostconditionIdx: { XOTclProcAssertion *procs; if (withPer_object) { procs = object->opt ? AssertionFindProcs(object->opt->assertions, methodName) : NULL; } else { XOTclClass *class = (XOTclClass *)object; procs = class->opt ? AssertionFindProcs(class->opt->assertions, methodName) : NULL; } if (procs) Tcl_SetObjResult(interp, AssertionList(interp, procs->post)); return TCL_OK; } } /* * Subcommands different per type of method. The Converter in * InfoMethods defines the types: * * "all|scripted|system|alias|forwarder|object|setter" */ if (GetTclProcFromCommand(cmd)) { /* a scripted method */ switch (subcmd) { case InfomethodsubcmdTypeIdx: Tcl_SetObjResult(interp, Tcl_NewStringObj("scripted",-1)); break; case InfomethodsubcmdBodyIdx: ListProcBody(interp, GetTclProcFromCommand(cmd), methodName); break; case InfomethodsubcmdDefinitionIdx: { XOTclAssertionStore *assertions; resultObj = Tcl_NewListObj(0, NULL); /* todo: don't hard-code registering command name "method" */ AppendMethodRegistration(interp, resultObj, XOTclGlobalStrings[XOTE_METHOD], object, methodName, cmd, 0, outputPerObject); ListCmdParams(interp, cmd, methodName, 0); Tcl_ListObjAppendElement(interp, resultObj, Tcl_GetObjResult(interp)); ListProcBody(interp, GetTclProcFromCommand(cmd), methodName); Tcl_ListObjAppendElement(interp, resultObj, Tcl_GetObjResult(interp)); if (withPer_object) { assertions = object->opt ? object->opt->assertions : NULL; } else { XOTclClass *class = (XOTclClass *)object; assertions = class->opt ? class->opt->assertions : NULL; } if (assertions) { XOTclProcAssertion *procs = AssertionFindProcs(assertions, methodName); if (procs) { Tcl_ListObjAppendElement(interp, resultObj, Tcl_NewStringObj("-precondition", -1)); Tcl_ListObjAppendElement(interp, resultObj, AssertionList(interp, procs->pre)); Tcl_ListObjAppendElement(interp, resultObj, Tcl_NewStringObj("-postcondition", -1)); Tcl_ListObjAppendElement(interp, resultObj, AssertionList(interp, procs->post)); } } Tcl_SetObjResult(interp, resultObj); break; } } } else if (procPtr == XOTclForwardMethod) { /* forwarder */ switch (subcmd) { case InfomethodsubcmdTypeIdx: Tcl_SetObjResult(interp, XOTclGlobalObjects[XOTE_FORWARD]); break; case InfomethodsubcmdDefinitionIdx: { ClientData clientData = cmd ? Tcl_Command_objClientData(cmd) : NULL; if (clientData) { resultObj = Tcl_NewListObj(0, NULL); /* todo: don't hard-code registering command name "forward" */ AppendMethodRegistration(interp, resultObj, XOTclGlobalStrings[XOTE_FORWARD], object, methodName, cmd, 0, outputPerObject); AppendForwardDefinition(interp, resultObj, clientData); Tcl_SetObjResult(interp, resultObj); break; } } } } else if (procPtr == XOTclSetterMethod) { /* setter methods */ switch (subcmd) { case InfomethodsubcmdTypeIdx: Tcl_SetObjResult(interp, XOTclGlobalObjects[XOTE_SETTER]); break; case InfomethodsubcmdDefinitionIdx: resultObj = Tcl_NewListObj(0, NULL); /* todo: don't hard-code registering command name "setter" */ AppendMethodRegistration(interp, resultObj, XOTclGlobalStrings[XOTE_SETTER], object, methodName, cmd, 0, outputPerObject); Tcl_SetObjResult(interp, resultObj); break; } } else { /* must be an alias */ switch (subcmd) { case InfomethodsubcmdTypeIdx: Tcl_SetObjResult(interp, XOTclGlobalObjects[XOTE_ALIAS]); break; case InfomethodsubcmdDefinitionIdx: { Tcl_Obj *entryObj = AliasGet(interp, object->cmdName, methodName, withPer_object); if (entryObj) { int nrElements; Tcl_Obj **listElements; resultObj = Tcl_NewListObj(0, NULL); Tcl_ListObjGetElements(interp, entryObj, &nrElements, &listElements); /* todo: don't hard-code registering command name "alias" */ AppendMethodRegistration(interp, resultObj, XOTclGlobalStrings[XOTE_ALIAS], object, methodName, cmd, nrElements!=1, outputPerObject); Tcl_ListObjAppendElement(interp, resultObj, listElements[nrElements-1]); Tcl_SetObjResult(interp, resultObj); break; } } } } } return TCL_OK; } static int ProtectionMatches(Tcl_Interp *interp, int withCallprotection, Tcl_Command cmd) { int result, isProtected = Tcl_Command_flags(cmd) & XOTCL_CMD_PROTECTED_METHOD; if (withCallprotection == CallprotectionNULL) { withCallprotection = CallprotectionPublicIdx; } switch (withCallprotection) { case CallprotectionAllIdx: result = 1; break; case CallprotectionPublicIdx: result = (isProtected == 0); break; case CallprotectionProtectedIdx: result = (isProtected == 1); break; default: result = 1; } return result; } static int MethodTypeMatches(Tcl_Interp *interp, int methodType, Tcl_Command cmd, XOTclObject *object, char *key, int withPer_object) { Tcl_Command importedCmd; Tcl_ObjCmdProc *proc, *resolvedProc; proc = Tcl_Command_objProc(cmd); importedCmd = GetOriginalCommand(cmd); resolvedProc = Tcl_Command_objProc(importedCmd); if (methodType == XOTCL_METHODTYPE_ALIAS) { if (!(proc == XOTclProcAliasMethod || AliasGet(interp, object->cmdName, key, withPer_object))) { return 0; } } else { if (proc == XOTclProcAliasMethod) { if ((methodType & XOTCL_METHODTYPE_ALIAS) == 0) return 0; } /* the following cases are disjoint */ if (CmdIsProc(importedCmd)) { /*fprintf(stderr,"%s scripted %d\n", key, methodType & XOTCL_METHODTYPE_SCRIPTED);*/ if ((methodType & XOTCL_METHODTYPE_SCRIPTED) == 0) return 0; } else if (resolvedProc == XOTclForwardMethod) { if ((methodType & XOTCL_METHODTYPE_FORWARDER) == 0) return 0; } else if (resolvedProc == XOTclSetterMethod) { if ((methodType & XOTCL_METHODTYPE_SETTER) == 0) return 0; } else if (resolvedProc == XOTclObjDispatch) { if ((methodType & XOTCL_METHODTYPE_OBJECT) == 0) return 0; } else if ((methodType & XOTCL_METHODTYPE_OTHER) == 0) { /*fprintf(stderr,"OTHER %s not wanted %.4x\n", key, methodType);*/ return 0; } /* XOTclObjscopedMethod ??? */ } return 1; } static int ListMethodKeys(Tcl_Interp *interp, Tcl_HashTable *table, char *pattern, int methodType, int withCallprotection, Tcl_HashTable *dups, XOTclObject *object, int withPer_object) { Tcl_HashSearch hSrch; Tcl_HashEntry *hPtr, *duphPtr; Tcl_Command cmd; char *key; int new; if (pattern && noMetaChars(pattern)) { /* We have a pattern that can be used for direct lookup; * no need to iterate */ hPtr = table ? XOTcl_FindHashEntry(table, pattern) : 0; if (hPtr) { key = Tcl_GetHashKey(table, hPtr); cmd = (Tcl_Command)Tcl_GetHashValue(hPtr); if (ProtectionMatches(interp, withCallprotection, cmd) && MethodTypeMatches(interp, methodType, cmd, object, key, withPer_object)) { if (dups) { duphPtr = Tcl_CreateHashEntry(dups, key, &new); if (new) { Tcl_AppendElement(interp, key); } } else { Tcl_AppendElement(interp, key); } } } return TCL_OK; } else { hPtr = table ? Tcl_FirstHashEntry(table, &hSrch) : 0; for (; hPtr; hPtr = Tcl_NextHashEntry(&hSrch)) { key = Tcl_GetHashKey(table, hPtr); cmd = (Tcl_Command)Tcl_GetHashValue(hPtr); if (pattern && !Tcl_StringMatch(key, pattern)) continue; if (!ProtectionMatches(interp, withCallprotection, cmd) || !MethodTypeMatches(interp, methodType, cmd, object, key, withPer_object) ) continue; if (dups) { duphPtr = Tcl_CreateHashEntry(dups, key, &new); if (!new) continue; } Tcl_AppendElement(interp, key); } } /*fprintf(stderr, "listkeys returns '%s'\n", ObjStr(Tcl_GetObjResult(interp)));*/ return TCL_OK; } static int ListChildren(Tcl_Interp *interp, XOTclObject *obj, char *pattern, int classesOnly) { XOTclObject *childobj; Tcl_HashTable *cmdTable; XOTcl_FrameDecls; if (!obj->nsPtr) return TCL_OK; cmdTable = Tcl_Namespace_cmdTable(obj->nsPtr); if (pattern && noMetaChars(pattern)) { XOTcl_PushFrameObj(interp, obj); if ((childobj = XOTclpGetObject(interp, pattern)) && (!classesOnly || XOTclObjectIsClass(childobj)) && (Tcl_Command_nsPtr(childobj->id) == obj->nsPtr) /* true children */ ) { Tcl_SetObjResult(interp, childobj->cmdName); } else { Tcl_SetObjResult(interp, XOTclGlobalObjects[XOTE_EMPTY]); } XOTcl_PopFrameObj(interp, obj); } else { Tcl_Obj *list = Tcl_NewListObj(0, NULL); Tcl_HashSearch hSrch; Tcl_HashEntry *hPtr = Tcl_FirstHashEntry(cmdTable, &hSrch); char *key; XOTcl_PushFrameObj(interp, obj); for (; hPtr; hPtr = Tcl_NextHashEntry(&hSrch)) { key = Tcl_GetHashKey(cmdTable, hPtr); if (!pattern || Tcl_StringMatch(key, pattern)) { if ((childobj = XOTclpGetObject(interp, key)) && (!classesOnly || XOTclObjectIsClass(childobj)) && (Tcl_Command_nsPtr(childobj->id) == obj->nsPtr) /* true children */ ) { Tcl_ListObjAppendElement(interp, list, childobj->cmdName); } } } XOTcl_PopFrameObj(interp, obj); Tcl_SetObjResult(interp, list); } return TCL_OK; } static int ListForward(Tcl_Interp *interp, Tcl_HashTable *table, char *pattern, int withDefinition) { if (withDefinition) { Tcl_HashEntry *hPtr = table && pattern ? XOTcl_FindHashEntry(table, pattern) : 0; /* notice: we don't use pattern for wildcard matching here; pattern can only contain wildcards when used without "-definition" */ if (hPtr) { Tcl_Command cmd = (Tcl_Command)Tcl_GetHashValue(hPtr); ClientData clientData = cmd? Tcl_Command_objClientData(cmd) : NULL; forwardCmdClientData *tcd = (forwardCmdClientData *)clientData; if (tcd && Tcl_Command_objProc(cmd) == XOTclForwardMethod) { Tcl_Obj *listObj = Tcl_NewListObj(0, NULL); AppendForwardDefinition(interp, listObj, tcd); Tcl_SetObjResult(interp, listObj); return TCL_OK; } } return XOTclVarErrMsg(interp, "'", pattern, "' is not a forwarder", (char *) NULL); } return ListMethodKeys(interp, table, pattern, XOTCL_METHODTYPE_FORWARDER, CallprotectionAllIdx, NULL, NULL, 0); } static int ListDefinedMethods(Tcl_Interp *interp, XOTclObject *object, char *pattern, int withPer_object, int methodType, int withCallproctection, int noMixins, int inContext) { Tcl_HashTable *cmdTable; if (XOTclObjectIsClass(object) && !withPer_object) { cmdTable = Tcl_Namespace_cmdTable(((XOTclClass *)object)->nsPtr); } else { cmdTable = object->nsPtr ? Tcl_Namespace_cmdTable(object->nsPtr) : NULL; } ListMethodKeys(interp, cmdTable, pattern, methodType, withCallproctection, NULL, object, withPer_object); return TCL_OK; } static int ListCallableMethods(Tcl_Interp *interp, XOTclObject *object, char *pattern, int withPer_object, int methodType, int withCallprotection, int withApplication, int noMixins, int inContext) { XOTclClasses *pl; Tcl_HashTable *cmdTable, dupsTable, *dups = &dupsTable; /* * TODO: we could make this faster for patterns without metachars * by letting ListMethodKeys() to signal us when an entry was found. * we wait, until the we decided about "info methods defined" * vs. "info method search" vs. "info defined" etc. */ if (withCallprotection == CallprotectionNULL) { withCallprotection = CallprotectionPublicIdx; } if (withApplication && object->flags & IsBaseClass((XOTclClass*)object)) { return TCL_OK; } Tcl_InitHashTable(dups, TCL_STRING_KEYS); if (object->nsPtr) { cmdTable = Tcl_Namespace_cmdTable(object->nsPtr); ListMethodKeys(interp, cmdTable, pattern, methodType, withCallprotection, dups, object, withPer_object); } if (!noMixins) { if (!(object->flags & XOTCL_MIXIN_ORDER_VALID)) MixinComputeDefined(interp, object); if (object->flags & XOTCL_MIXIN_ORDER_DEFINED_AND_VALID) { XOTclCmdList *ml; XOTclClass *mixin; for (ml = object->mixinOrder; ml; ml = ml->nextPtr) { int guardOk = TCL_OK; mixin = XOTclGetClassFromCmdPtr(ml->cmdPtr); if (inContext) { if (!RUNTIME_STATE(interp)->guardCount) { guardOk = GuardCall(object, 0, 0, interp, ml->clientData, NULL); } } if (mixin && guardOk == TCL_OK) { Tcl_HashTable *cmdTable = Tcl_Namespace_cmdTable(mixin->nsPtr); ListMethodKeys(interp, cmdTable, pattern, methodType, withCallprotection, dups, object, withPer_object); } } } } /* append method keys from inheritance order */ for (pl = ComputeOrder(object->cl, object->cl->order, Super); pl; pl = pl->nextPtr) { Tcl_HashTable *cmdTable = Tcl_Namespace_cmdTable(pl->cl->nsPtr); if (withApplication && IsBaseClass(pl->cl)) { break; } ListMethodKeys(interp, cmdTable, pattern, methodType, withCallprotection, dups, object, withPer_object); } Tcl_DeleteHashTable(dups); return TCL_OK; } static int ListSuperclasses(Tcl_Interp *interp, XOTclClass *cl, Tcl_Obj *pattern, int withClosure) { XOTclObject *matchObject = NULL; Tcl_Obj *patternObj = NULL; char *patternString = NULL; int rc; if (pattern && convertToObjpattern(interp, pattern, NULL, (ClientData *)&patternObj) == TCL_OK) { if (getMatchObject(interp, patternObj, pattern, &matchObject, &patternString) == -1) { if (patternObj) { DECR_REF_COUNT(patternObj); } return TCL_OK; } } if (withClosure) { XOTclClasses *pl = ComputeOrder(cl, cl->order, Super); if (pl) pl=pl->nextPtr; rc = AppendMatchingElementsFromClasses(interp, pl, patternString, matchObject); } else { XOTclClasses *clSuper = XOTclReverseClasses(cl->super); rc = AppendMatchingElementsFromClasses(interp, clSuper, patternString, matchObject); XOTclClassListFree(clSuper); } if (matchObject) { Tcl_SetObjResult(interp, rc ? matchObject->cmdName : XOTclGlobalObjects[XOTE_EMPTY]); } if (patternObj) { DECR_REF_COUNT(patternObj); } return TCL_OK; } /******************************** * End result setting commands ********************************/ static CONST char* AliasIndex(Tcl_DString *dsPtr, Tcl_Obj *cmdName, CONST char *methodName, int withPer_object) { Tcl_DStringInit(dsPtr); Tcl_DStringAppend(dsPtr, ObjStr(cmdName), -1); Tcl_DStringAppend(dsPtr, ",", 1); Tcl_DStringAppend(dsPtr, methodName, -11); if (withPer_object) { Tcl_DStringAppend(dsPtr, ",1", 2); } else { Tcl_DStringAppend(dsPtr, ",0", 2); } /*fprintf(stderr, "AI %s\n", Tcl_DStringValue(dsPtr));*/ return Tcl_DStringValue(dsPtr); } static int AliasAdd(Tcl_Interp *interp, Tcl_Obj *cmdName, CONST char *methodName, int withPer_object, char *cmd) { Tcl_DString ds, *dsPtr = &ds; Tcl_SetVar2Ex(interp, XOTclGlobalStrings[XOTE_ALIAS_ARRAY], AliasIndex(dsPtr, cmdName, methodName, withPer_object), Tcl_NewStringObj(cmd,-1), TCL_GLOBAL_ONLY); /*fprintf(stderr, "aliasAdd ::xotcl::alias(%s) '%s' returned %p\n", AliasIndex(dsPtr, cmdName, methodName, withPer_object), cmd, 1);*/ Tcl_DStringFree(dsPtr); return TCL_OK; } static int AliasDelete(Tcl_Interp *interp, Tcl_Obj *cmdName, CONST char *methodName, int withPer_object) { Tcl_DString ds, *dsPtr = &ds; int result = Tcl_UnsetVar2(interp, XOTclGlobalStrings[XOTE_ALIAS_ARRAY], AliasIndex(dsPtr, cmdName, methodName, withPer_object), TCL_GLOBAL_ONLY); /*fprintf(stderr, "aliasDelete ::xotcl::alias(%s) returned %d (%d)\n", AliasIndex(dsPtr, cmdName, methodName, withPer_object), result);*/ Tcl_DStringFree(dsPtr); return result; } static Tcl_Obj *AliasGet(Tcl_Interp *interp, Tcl_Obj *cmdName, CONST char *methodName, int withPer_object) { Tcl_DString ds, *dsPtr = &ds; Tcl_Obj *obj = Tcl_GetVar2Ex(interp, XOTclGlobalStrings[XOTE_ALIAS_ARRAY], AliasIndex(dsPtr, cmdName, methodName, withPer_object), TCL_GLOBAL_ONLY); /*fprintf(stderr, "aliasGet returns %p\n", obj);*/ Tcl_DStringFree(dsPtr); return obj; } /********************************* * Begin generated XOTcl commands *********************************/ /* xotclCmd alias XOTclAliasCmd { {-argName "object" -type object} {-argName "-per-object"} {-argName "methodName"} {-argName "-nonleaf"} {-argName "-objscope"} {-argName "cmdName" -required 1 -type tclobj} } */ static int XOTclAliasCmd(Tcl_Interp *interp, XOTclObject *object, int withPer_object, char *methodName, int withNonleaf, int withObjscope, Tcl_Obj *cmdName) { Tcl_ObjCmdProc *objProc, *newObjProc = NULL; Tcl_CmdDeleteProc *deleteProc = NULL; AliasCmdClientData *tcd = NULL; /* make compiler happy */ Tcl_Command cmd, newCmd = NULL; Tcl_Namespace *nsPtr; int flags, result; XOTclClass *cl = (withPer_object || ! XOTclObjectIsClass(object)) ? NULL : (XOTclClass *)object; cmd = Tcl_GetCommandFromObj(interp, cmdName); if (cmd == NULL) { return XOTclVarErrMsg(interp, "cannot lookup command '", ObjStr(cmdName), "'", (char *) NULL); } cmd = GetOriginalCommand(cmd); objProc = Tcl_Command_objProc(cmd); /* objProc is either ... 1. XOTclObjDispatch: a command representing an XOTcl object 2. TclObjInterpProc: a cmd standing for a Tcl proc (including XOTcl methods), verified through CmdIsProc() -> to be wrapped by XOTclProcAliasMethod() 3. XOTclForwardMethod: an XOTcl forwarder 4. XOTclSetterMethod: an XOTcl setter 5. arbitrary Tcl commands (e.g. set, ..., ::xotcl::relation, ...) TODO GN: i think, we should use XOTclProcAliasMethod, whenever the clientData is not 0. These are the cases, where the clientData will be freed, when the original command is deleted. */ if (withObjscope) { newObjProc = XOTclObjscopedMethod; } if (objProc == XOTclObjDispatch) { /* * if we register an alias for an object, we have to take care to * handle cases, where the aliased object is destroyed and the * alias points to nowhere. We realize this via using the object * refcount. */ /*fprintf(stderr, "registering an object %p\n", tcd);*/ XOTclObjectRefCountIncr((XOTclObject *)Tcl_Command_objClientData(cmd)); /*newObjProc = XOTclProcAliasMethod;*/ } else if (CmdIsProc(cmd)) { /* * if we have a tcl proc|xotcl-method as alias, then use the * wrapper, which will be deleted automatically when the original * proc/method is deleted. */ newObjProc = XOTclProcAliasMethod; if (withObjscope) { return XOTclVarErrMsg(interp, "cannot use -objscope for tcl implemented command '", ObjStr(cmdName), "'", (char *) NULL); } } if (newObjProc) { /* add a wrapper */ tcd = NEW(AliasCmdClientData); tcd->cmdName = object->cmdName; tcd->interp = interp; /* just for deleting the associated variable */ tcd->obj = object; tcd->class = cl ? (XOTclClass *) object : NULL; tcd->objProc = objProc; tcd->aliasedCmd = cmd; tcd->clientData = Tcl_Command_objClientData(cmd); objProc = newObjProc; deleteProc = aliasCmdDeleteProc; if (tcd->cmdName) {INCR_REF_COUNT(tcd->cmdName);} } else { /* call the command directly (must be a c-implemented command not * depending on a volatile client data) */ tcd = Tcl_Command_objClientData(cmd); } flags = 0; if (cl) { result = XOTclAddClassMethod(interp, (XOTcl_Class *)cl, methodName, objProc, tcd, deleteProc, flags); nsPtr = cl->nsPtr; } else { result = XOTclAddObjectMethod(interp, (XOTcl_Object*)object, methodName, objProc, tcd, deleteProc, flags); nsPtr = object->nsPtr; } if (result == TCL_OK) { newCmd = FindMethod(nsPtr, methodName); } if (newObjProc) { /* * Define the reference chain like for 'namespace import' to * obtain automatic deletes when the original command is deleted. */ ImportRef *refPtr = (ImportRef *) ckalloc(sizeof(ImportRef)); refPtr->importedCmdPtr = (Command *) newCmd; refPtr->nextPtr = ((Command *) tcd->aliasedCmd)->importRefPtr; ((Command *) tcd->aliasedCmd)->importRefPtr = refPtr; tcd->aliasCmd = newCmd; } if (newCmd) { Tcl_DString ds, *dsPtr = &ds; Tcl_DStringInit(dsPtr); /*if (withPer_object) {Tcl_DStringAppend(dsPtr, "-per-object ", -1);}*/ if (withObjscope) {Tcl_DStringAppend(dsPtr, "-objscope ", -1);} Tcl_DStringAppend(dsPtr, ObjStr(cmdName), -1); AliasAdd(interp, object->cmdName, methodName, cl == NULL, Tcl_DStringValue(dsPtr)); Tcl_DStringFree(dsPtr); if (!withObjscope && withNonleaf) { Tcl_Command_flags(newCmd) |= XOTCL_CMD_NONLEAF_METHOD; fprintf(stderr, "setting aliased for cmd %p %s flags %.6x, tcd = %p\n", newCmd,methodName,Tcl_Command_flags(newCmd), tcd); } result = ListMethodName(interp, object, cl == NULL, methodName); } return result; } /* xotclCmd assertion XOTclAssertionCmd { {-argName "object" -type object} {-argName "assertionsubcmd" -required 1 -type "check|object-invar|class-invar"} {-argName "arg" -required 0 -type tclobj} } Make "::xotcl::assertion" a cmd rather than a method, otherwise we cannot define e.g. a "method check options {...}" to reset the check options in case of a failed option, since assertion checking would be applied on the sketched method already. */ static int XOTclAssertionCmd(Tcl_Interp *interp, XOTclObject *object, int subcmd, Tcl_Obj *arg) { XOTclClass *class; switch (subcmd) { case AssertionsubcmdCheckIdx: if (arg) { return AssertionSetCheckOptions(interp, object, arg); } else { return AssertionListCheckOption(interp, object); } break; case AssertionsubcmdObject_invarIdx: if (arg) { XOTclObjectOpt *opt = XOTclRequireObjectOpt(object); AssertionSetInvariants(interp, &opt->assertions, arg); } else { if (object->opt && object->opt->assertions) { Tcl_SetObjResult(interp, AssertionList(interp, object->opt->assertions->invariants)); } } break; case AssertionsubcmdClass_invarIdx: class = (XOTclClass *)object; if (arg) { XOTclClassOpt *opt = XOTclRequireClassOpt(class); AssertionSetInvariants(interp, &opt->assertions, arg); } else { if (class->opt && class->opt->assertions) { Tcl_SetObjResult(interp, AssertionList(interp, class->opt->assertions->invariants)); } } } return TCL_OK; } /* xotclCmd configure XOTclConfigureCmd { {-argName "configureoption" -required 1 -type "filter|softrecreate|cacheinterface|objectsystems"} {-argName "value" -required 0 -type tclobj} } */ static int XOTclConfigureCmd(Tcl_Interp *interp, int configureoption, Tcl_Obj *value) { int bool; if (configureoption == ConfigureoptionObjectsystemsIdx) { XOTclClasses *os; Tcl_Obj *list = Tcl_NewListObj(0, NULL); for (os = RUNTIME_STATE(interp)->rootClasses; os; os = os->nextPtr) { Tcl_Obj *osObj = Tcl_NewListObj(0, NULL); Tcl_ListObjAppendElement(interp, osObj, os->cl->object.cmdName); Tcl_ListObjAppendElement(interp, osObj, ((XOTclClass *)os->clientData)->object.cmdName); Tcl_ListObjAppendElement(interp, list, osObj); } Tcl_SetObjResult(interp, list); return TCL_OK; } if (value) { int result = Tcl_GetBooleanFromObj(interp, value, &bool); if (result != TCL_OK) return result; } switch (configureoption) { case ConfigureoptionFilterIdx: Tcl_SetBooleanObj(Tcl_GetObjResult(interp), (RUNTIME_STATE(interp)->doFilters)); if (value) RUNTIME_STATE(interp)->doFilters = bool; break; case ConfigureoptionSoftrecreateIdx: Tcl_SetBooleanObj(Tcl_GetObjResult(interp), (RUNTIME_STATE(interp)->doSoftrecreate)); if (value) RUNTIME_STATE(interp)->doSoftrecreate = bool; break; case ConfigureoptionCacheinterfaceIdx: Tcl_SetBooleanObj(Tcl_GetObjResult(interp), (RUNTIME_STATE(interp)->cacheInterface)); if (value) RUNTIME_STATE(interp)->cacheInterface = bool; break; } return TCL_OK; } /* xotclCmd createobjectsystem XOTclCreateObjectSystemCmd { {-argName "rootClass" -required 1 -type tclobj} {-argName "rootMetaClass" -required 1 -type tclobj} } */ static int XOTclCreateObjectSystemCmd(Tcl_Interp *interp, Tcl_Obj *Object, Tcl_Obj *Class) { XOTclClass *theobj; XOTclClass *thecls; /* Create a basic object system with the basic root class Object and the basic metaclass Class, and store them in the RUNTIME STATE if successful */ theobj = PrimitiveCCreate(interp, Object, 0); thecls = PrimitiveCCreate(interp, Class, 0); /* fprintf(stderr, "CreateObjectSystem created base classes \n"); */ #if defined(PROFILE) XOTclProfileInit(interp); #endif /* test Object and Class creation */ if (!theobj || !thecls) { int i; if (thecls) PrimitiveCDestroy((ClientData) thecls); if (theobj) PrimitiveCDestroy((ClientData) theobj); for (i = 0; i < nr_elements(XOTclGlobalStrings); i++) { DECR_REF_COUNT(XOTclGlobalObjects[i]); } FREE(Tcl_Obj **, XOTclGlobalObjects); FREE(XOTclRuntimeState, RUNTIME_STATE(interp)); return XOTclErrMsg(interp, "Creation of object system failed", TCL_STATIC); } theobj->object.flags |= XOTCL_IS_ROOT_CLASS; thecls->object.flags |= XOTCL_IS_ROOT_META_CLASS; XOTclClassListAdd(&RUNTIME_STATE(interp)->rootClasses, theobj, (ClientData)thecls); AddInstance((XOTclObject*)theobj, thecls); AddInstance((XOTclObject*)thecls, thecls); AddSuper(thecls, theobj); return TCL_OK; } /* xotclCmd deprecated XOTclDeprecatedCmd { {-argName "what" -required 1} {-argName "oldCmd" -required 1} {-argName "newCmd" -required 0} } */ /* * Prints a msg to the screen that oldCmd is deprecated * optinal: give a new cmd */ static int XOTclDeprecatedCmd(Tcl_Interp *interp, char *what, char *oldCmd, char *newCmd) { fprintf(stderr, "**\n**\n** The %s <%s> is deprecated.\n", what, oldCmd); if (newCmd) fprintf(stderr, "** Use <%s> instead.\n", newCmd); fprintf(stderr, "**\n"); return TCL_OK; } /* xotclCmd dispatch XOTclDispatchCmd { {-argName "object" -required 1 -type object} {-argName "-objscope"} {-argName "command" -required 1 -type tclobj} {-argName "args" -type args} } */ static int XOTclDispatchCmd(Tcl_Interp *interp, XOTclObject *object, int withObjscope, Tcl_Obj *command, int nobjc, Tcl_Obj *CONST nobjv[]) { int result; char *methodName = ObjStr(command); register char *n = methodName + strlen(methodName); /* fprintf(stderr, "Dispatch obj=%s, o=%p cmd m='%s'\n", objectName(object), object, methodName);*/ /* * If the specified method is a fully qualified cmd name like * e.g. ::xotcl::cmd::Class::alloc, this method is called on the * specified , no matter whether it was registered on * it. */ /*search for last '::'*/ while ((*n != ':' || *(n-1) != ':') && n-1 > methodName) {n--; } if (*n == ':' && n > methodName && *(n-1) == ':') {n--;} if ((n-methodName)>1 || *methodName == ':') { Tcl_DString parentNSName, *dsp = &parentNSName; Tcl_Namespace *nsPtr; Tcl_Command cmd, importedCmd; char *parentName, *tail = n+2; DSTRING_INIT(dsp); /* * We have an absolute name. We assume, the name is the name of a * tcl command, that will be dispatched. If "withObjscope is * specified, a callstack frame is pushed to make instvars * accessible for the command. */ /*fprintf(stderr, "colon name %s\n", tail);*/ if (n-methodName != 0) { Tcl_DStringAppend(dsp, methodName, (n-methodName)); parentName = Tcl_DStringValue(dsp); nsPtr = Tcl_FindNamespace(interp, parentName, (Tcl_Namespace *) NULL, TCL_GLOBAL_ONLY); DSTRING_FREE(dsp); } else { nsPtr = Tcl_FindNamespace(interp, "::", (Tcl_Namespace *) NULL, TCL_GLOBAL_ONLY); } if (!nsPtr) { return XOTclVarErrMsg(interp, "cannot lookup parent namespace '", methodName, "'", (char *) NULL); } cmd = FindMethod(nsPtr, tail); if (cmd && (importedCmd = TclGetOriginalCommand(cmd))) { cmd = importedCmd; } /*fprintf(stderr, " .... findmethod '%s' in %s returns %p\n", tail, nsPtr->fullName, cmd);*/ if (cmd == NULL) { return XOTclVarErrMsg(interp, "cannot lookup command '", tail, "'", (char *) NULL); } {XOTcl_FrameDecls; if (withObjscope) { XOTcl_PushFrameObj(interp, object); } /* * Since we know, that we are always called with a full argument * vector, we can include the cmd name in the objv by using * nobjv-1; this way, we avoid a memcpy() */ result = MethodDispatch((ClientData)object, interp, nobjc+1, nobjv-1, cmd, object, NULL /*XOTclClass *cl*/, tail, XOTCL_CSC_TYPE_PLAIN); if (withObjscope) { XOTcl_PopFrameObj(interp, object); } } } else { /* * No colons in command name, use method from the precedence * order, with filters etc. -- strictly speaking unneccessary, * since we could dispatch the method also without * XOTclDispatchCmd(), but it can be used to invoke protected * methods. 'withObjscope' is here a no-op. */ Tcl_Obj *arg; Tcl_Obj *CONST *objv; if (nobjc >= 1) { arg = nobjv[0]; objv = nobjv+1; } else { arg = NULL; objv = NULL; } result = XOTclCallMethodWithArgs((ClientData)object, interp, command, arg, nobjc, objv, XOTCL_CM_NO_UNKNOWN); } return result; } /* xotclCmd dot XOTclDotCmd { {-argName "args" -type allargs} } */ static int XOTclDotCmd(Tcl_Interp *interp, int nobjc, Tcl_Obj *CONST nobjv[]) { XOTclObject *self = GetSelfObj(interp); if (!self) { return XOTclVarErrMsg(interp, "Cannot resolve 'self', probably called outside the context of an XOTcl Object", (char *) NULL); } /*fprintf(stderr, "Dot dispatch %s on %s\n", ObjStr(nobjv[0]), objectName(self));*/ return ObjectDispatch(self, interp, nobjc, nobjv, XOTCL_CM_NO_SHIFT); } /* xotclCmd dotdot XOTclDotDotCmd { {-argName "args" -type allargs} } */ static int XOTclDotDotCmd(Tcl_Interp *interp, int nobjc, Tcl_Obj *CONST nobjv[]) { char *methodName = ObjStr(nobjv[0]); /* We want to call a command with bypassing the command resolver, since the the command resolver will call InterpDotCmdResolver again. Therefore we perform a single lookup and call the cmd directly */ fprintf(stderr, "DotDot dispatch %s\n", methodName); if (*(methodName+1) == '.') { Tcl_Command cmd = Tcl_FindCommand(interp, methodName+1, NULL, TCL_GLOBAL_ONLY); if (cmd) { fprintf(stderr, " ... calling DotDot on %s cmd %p\n", methodName+1, cmd); return Tcl_NRCallObjProc(interp, Tcl_Command_objProc(cmd), Tcl_Command_objClientData(cmd), nobjc, nobjv); } } return XOTclVarErrMsg(interp, "unknown command name '", methodName+1, "'", (char *) NULL); } /* xotclCmd exists XOTclExistsCmd { {-argName "object" -required 1 -type object} {-argName "var" -required 1} } */ static int XOTclExistsCmd(Tcl_Interp *interp, XOTclObject *obj, char *var) { Tcl_SetIntObj(Tcl_GetObjResult(interp), varExists(interp, obj, var, NULL, 1, 1)); return TCL_OK; } /* xotclCmd finalize XOTclFinalizeObjCmd { } */ /* * ::xotcl::finalize command */ static int destroyObjectSystems(Tcl_Interp *interp); static int XOTclFinalizeObjCmd(Tcl_Interp *interp) { int result; /* fprintf(stderr, "+++ call EXIT handler\n"); */ #if defined(PROFILE) XOTclProfilePrintData(interp); #endif /* * evaluate user-defined exit handler */ result = Tcl_Eval(interp, "::xotcl::__exitHandler"); if (result != TCL_OK) { fprintf(stderr, "User defined exit handler contains errors!\n" "Error in line %d: %s\nExecution interrupted.\n", Tcl_GetErrorLine(interp), ObjStr(Tcl_GetObjResult(interp))); } destroyObjectSystems(interp); XOTclClassListFree(RUNTIME_STATE(interp)->rootClasses); #ifdef DO_CLEANUP /*fprintf(stderr, "CLEANUP TOP NS\n");*/ XOTcl_DeleteNamespace(interp, RUNTIME_STATE(interp)->XOTclClassesNS); XOTcl_DeleteNamespace(interp, RUNTIME_STATE(interp)->XOTclNS); #endif return TCL_OK; } /* xotclCmd forward XOTclForwardCmd { {-argName "object" -required 1 -type object} {-argName "-per-object"} {-argName "method" -required 1 -type tclobj} {-argName "-default" -nrargs 1 -type tclobj} {-argName "-earlybinding"} {-argName "-methodprefix" -nrargs 1 -type tclobj} {-argName "-objscope"} {-argName "-onerror" -nrargs 1 -type tclobj} {-argName "-verbose"} {-argName "target" -type tclobj} {-argName "args" -type args} } */ static int XOTclForwardCmd(Tcl_Interp *interp, XOTclObject *object, int withPer_object, Tcl_Obj *method, Tcl_Obj *withDefault, int withEarlybinding, Tcl_Obj *withMethodprefix, int withObjscope, Tcl_Obj *withOnerror, int withVerbose, Tcl_Obj *target, int nobjc, Tcl_Obj *CONST nobjv[]) { forwardCmdClientData *tcd = NULL; int result; result = forwardProcessOptions(interp, method, withDefault, withEarlybinding, withMethodprefix, withObjscope, withOnerror, withVerbose, target, nobjc, nobjv, &tcd); if (result == TCL_OK) { CONST char *methodName = NSTail(ObjStr(method)); XOTclClass *cl = (withPer_object || ! XOTclObjectIsClass(object)) ? NULL : (XOTclClass *)object; tcd->obj = object; if (cl == NULL) { result = XOTclAddObjectMethod(interp, (XOTcl_Object *)object, methodName, (Tcl_ObjCmdProc*)XOTclForwardMethod, (ClientData)tcd, forwardCmdDeleteProc, 0); } else { result = XOTclAddClassMethod(interp, (XOTcl_Class*)cl, methodName, (Tcl_ObjCmdProc*)XOTclForwardMethod, (ClientData)tcd, forwardCmdDeleteProc, 0); } if (result == TCL_OK) { result = ListMethodName(interp, object, cl == NULL, methodName); } } return result; } /* xotclCmd importvar XOTclImportvarCmd { {-argName "object" -type object} {-argName "args" -type args} } */ static int XOTclImportvarCmd(Tcl_Interp *interp, XOTclObject *object, int objc, Tcl_Obj *CONST objv[]) { int i, result = TCL_OK; for (i=1; i type "); success = (GetObjectFromObj(interp, object, &obj) == TCL_OK) && (GetClassFromObj(interp, value, &cl, 0) == TCL_OK) && isSubType(obj->cl, cl); break; case ObjectkindObjectIdx: if (value != NULL) return XOTclObjErrArgCnt(interp, NULL, NULL, " object"); success = (GetObjectFromObj(interp, object, &obj) == TCL_OK); break; case ObjectkindClassIdx: if (value != NULL) return XOTclObjErrArgCnt(interp, NULL, NULL, " class"); success = (GetObjectFromObj(interp, object, &obj) == TCL_OK) && XOTclObjectIsClass(obj); break; case ObjectkindMetaclassIdx: if (value != NULL) return XOTclObjErrArgCnt(interp, NULL, NULL, " metaclass"); success = (GetObjectFromObj(interp, object, &obj) == TCL_OK) && XOTclObjectIsClass(obj) && IsMetaClass(interp, (XOTclClass*)obj, 1); break; case ObjectkindBaseclassIdx: if (value != NULL) return XOTclObjErrArgCnt(interp, NULL, NULL, " baseclass"); success = (GetObjectFromObj(interp, object, &obj) == TCL_OK) && XOTclObjectIsClass(obj) && IsBaseClass((XOTclClass*)obj); break; case ObjectkindMixinIdx: if (value == NULL) return XOTclObjErrArgCnt(interp, NULL, NULL, " mixin "); success = (GetObjectFromObj(interp, object, &obj) == TCL_OK) && (GetClassFromObj(interp, value, &cl, 0) == TCL_OK) && hasMixin(interp, obj, cl); break; } Tcl_SetIntObj(Tcl_GetObjResult(interp), success); return TCL_OK; } /* xotclCmd method XOTclMethodCmd { {-argName "object" -required 1 -type object} {-argName "-inner-namespace"} {-argName "-per-object"} {-argName "-public"} {-argName "name" -required 1 -type tclobj} {-argName "args" -required 1 -type tclobj} {-argName "body" -required 1 -type tclobj} {-argName "-precondition" -nrargs 1 -type tclobj} {-argName "-postcondition" -nrargs 1 -type tclobj} } */ static int XOTclMethodCmd(Tcl_Interp *interp, XOTclObject *object, int withInner_namespace, int withPer_object, int withPublic, Tcl_Obj *name, Tcl_Obj *args, Tcl_Obj *body, Tcl_Obj *withPrecondition, Tcl_Obj *withPostcondition) { XOTclClass *cl = (withPer_object || ! XOTclObjectIsClass(object)) ? NULL : (XOTclClass *)object; if (cl == 0) { requireObjNamespace(interp, object); } return MakeMethod(interp, object, cl, name, args, body, withPrecondition, withPostcondition, withPublic, withInner_namespace); } /* xotclCmd methodproperty XOTclMethodPropertyCmd { {-argName "object" -required 1 -type object} {-argName "-per-object"} {-argName "methodName" -required 1 -type tclobj} {-argName "methodproperty" -required 1 -type "protected|redefine-protected|slotobj"} {-argName "value" -type tclobj} } */ static int XOTclMethodPropertyCmd(Tcl_Interp *interp, XOTclObject *object, int withPer_object, Tcl_Obj *methodObj, int methodproperty, Tcl_Obj *value) { char *methodName = ObjStr(methodObj); Tcl_Command cmd = NULL; if (*methodName == ':') { cmd = Tcl_GetCommandFromObj(interp, methodObj); if (!cmd) { return XOTclVarErrMsg(interp, "Cannot lookup object method '", methodName, "' for object ", objectName(object), (char *) NULL); } } else { XOTclClass *cl; if (withPer_object) { cl = NULL; } else { cl = XOTclObjectIsClass(object) ? (XOTclClass *)object : NULL; } if (cl == NULL) { if (object->nsPtr) cmd = FindMethod(object->nsPtr, methodName); if (!cmd) { return XOTclVarErrMsg(interp, "Cannot lookup object method '", methodName, "' for object ", objectName(object), (char *) NULL); } } else { if (cl->nsPtr) cmd = FindMethod(cl->nsPtr, methodName); if (!cmd) return XOTclVarErrMsg(interp, "Cannot lookup method '", methodName, "' from class ", objectName(object), (char *) NULL); } } if (methodproperty == MethodpropertyProtectedIdx || methodproperty == MethodpropertyRedefine_protectedIdx) { int flag = methodproperty == MethodpropertyProtectedIdx ? XOTCL_CMD_PROTECTED_METHOD : XOTCL_CMD_REDEFINE_PROTECTED_METHOD; if (value) { int bool, result; result = Tcl_GetBooleanFromObj(interp, value, &bool); if (result != TCL_OK) { return result; } if (bool) { Tcl_Command_flags(cmd) |= flag; } else { Tcl_Command_flags(cmd) &= ~flag; } } Tcl_SetIntObj(Tcl_GetObjResult(interp), (Tcl_Command_flags(cmd) & flag) != 0); } else { /* slotobj */ XOTclParamDefs *paramDefs; if (value == NULL) { return XOTclVarErrMsg(interp, "Option 'slotobj' of method ", methodName, " requires argument '", (char *) NULL); } paramDefs = ParamDefsGet(cmd); if (paramDefs == NULL) { paramDefs = NEW(XOTclParamDefs); memset(paramDefs, 0, sizeof(XOTclParamDefs)); ParamDefsStore(interp, cmd, paramDefs); } else { fprintf(stderr, "define slotobj for a method with nonpospargs\n slotobj = %s \n", ObjStr(value)); if (paramDefs->slotObj) { DECR_REF_COUNT(paramDefs->slotObj); } } paramDefs->slotObj = value; INCR_REF_COUNT(paramDefs->slotObj); } return TCL_OK; } /* xotclCmd my XOTclMyCmd { {-argName "-local"} {-argName "method" -required 1 -type tclobj} {-argName "args" -type args} } */ static int XOTclMyCmd(Tcl_Interp *interp, int withLocal, Tcl_Obj *method, int nobjc, Tcl_Obj *CONST nobjv[]) { XOTclObject *self = GetSelfObj(interp); int result; if (!self) { return XOTclVarErrMsg(interp, "Cannot resolve 'self', probably called outside the context of an XOTcl Object", (char *) NULL); } if (withLocal) { XOTclClass *cl = self->cl; char *methodName = ObjStr(method); Tcl_Command cmd = FindMethod(cl->nsPtr, methodName); if (cmd == NULL) return XOTclVarErrMsg(interp, objectName(self), ": unable to dispatch local method '", methodName, "' in class ", className(cl), (char *) NULL); result = MethodDispatch((ClientData)self, interp, nobjc+2, nobjv, cmd, self, cl, methodName, 0); } else { result = callMethod((ClientData)self, interp, method, nobjc+2, nobjv, 0); } return result; } /* xotclCmd namespace_copycmds XOTclNSCopyCmds { {-argName "fromNs" -required 1 -type tclobj} {-argName "toNs" -required 1 -type tclobj} } */ static int XOTclNSCopyCmds(Tcl_Interp *interp, Tcl_Obj *fromNs, Tcl_Obj *toNs) { Tcl_Command cmd; Tcl_Obj *newFullCmdName, *oldFullCmdName; char *newName, *oldName, *name; Tcl_Namespace *fromNsPtr, *toNsPtr; Tcl_HashTable *cmdTable; Tcl_HashSearch hSrch; Tcl_HashEntry *hPtr; XOTclObject *obj; XOTclClass *cl; fromNsPtr = ObjFindNamespace(interp, fromNs); if (!fromNsPtr) return TCL_OK; name = ObjStr(fromNs); /* check, if we work on an object or class namespace */ if (isClassName(name)) { cl = XOTclpGetClass(interp, NSCutXOTclClasses(name)); obj = (XOTclObject *)cl; } else { cl = NULL; obj = XOTclpGetObject(interp, name); } if (obj == NULL) { return XOTclVarErrMsg(interp, "CopyCmds argument 1 (", ObjStr(fromNs), ") is not an object", NULL); } /* obj = XOTclpGetObject(interp, ObjStr(fromNs));*/ toNsPtr = ObjFindNamespace(interp, toNs); if (!toNsPtr) return XOTclVarErrMsg(interp, "CopyCmds: Destination namespace ", ObjStr(toNs), " does not exist", (char *) NULL); /* * copy all procs & commands in the ns */ cmdTable = Tcl_Namespace_cmdTable(fromNsPtr); hPtr = Tcl_FirstHashEntry(cmdTable, &hSrch); while (hPtr) { /*fprintf(stderr, "copy cmdTable = %p, first=%p\n", cmdTable, hPtr);*/ name = Tcl_GetHashKey(cmdTable, hPtr); /* * construct full cmd names */ newFullCmdName = Tcl_NewStringObj(toNsPtr->fullName,-1); oldFullCmdName = Tcl_NewStringObj(fromNsPtr->fullName,-1); INCR_REF_COUNT(newFullCmdName); INCR_REF_COUNT(oldFullCmdName); Tcl_AppendStringsToObj(newFullCmdName, "::", name, (char *) NULL); Tcl_AppendStringsToObj(oldFullCmdName, "::", name, (char *) NULL); newName = ObjStr(newFullCmdName); oldName = ObjStr(oldFullCmdName); /*fprintf(stderr, "try to copy command from '%s' to '%s'\n", oldName, newName);*/ /* * Make sure that the destination command does not already exist. * Otherwise: do not copy */ cmd = Tcl_FindCommand(interp, newName, 0, 0); if (cmd) { /*fprintf(stderr, "%s already exists\n", newName);*/ if (!XOTclpGetObject(interp, newName)) { /* command or scripted method will be deleted & then copied */ Tcl_DeleteCommandFromToken(interp, cmd); } else { /* don't overwrite objects -> will be recreated */ hPtr = Tcl_NextHashEntry(&hSrch); DECR_REF_COUNT(newFullCmdName); DECR_REF_COUNT(oldFullCmdName); continue; } } /* * Find the existing command. An error is returned if simpleName can't * be found */ cmd = Tcl_FindCommand(interp, oldName, 0, 0); if (cmd == NULL) { Tcl_AppendStringsToObj(Tcl_GetObjResult(interp), "can't copy ", " \"", oldName, "\": command doesn't exist", (char *) NULL); DECR_REF_COUNT(newFullCmdName); DECR_REF_COUNT(oldFullCmdName); return TCL_ERROR; } /* * Do not copy Objects or Classes */ if (!XOTclpGetObject(interp, oldName)) { if (CmdIsProc(cmd)) { Proc *procPtr = (Proc*) Tcl_Command_objClientData(cmd); Tcl_Obj *arglistObj; int result; /* * Build a list containing the arguments of the proc */ result = ListCmdParams(interp, cmd, oldName, 0); if (result != TCL_OK) { return result; } arglistObj = Tcl_GetObjResult(interp); INCR_REF_COUNT(arglistObj); if (Tcl_Command_objProc(cmd) == RUNTIME_STATE(interp)->objInterpProc) { Tcl_DString ds, *dsPtr = &ds; if (cl) { /* XOTcl class-methods */ XOTclProcAssertion *procs; procs = cl->opt ? AssertionFindProcs(cl->opt->assertions, name) : 0; DSTRING_INIT(dsPtr); Tcl_DStringAppendElement(dsPtr, "::xotcl::method"); Tcl_DStringAppendElement(dsPtr, NSCutXOTclClasses(toNsPtr->fullName)); Tcl_DStringAppendElement(dsPtr, name); Tcl_DStringAppendElement(dsPtr, ObjStr(arglistObj)); Tcl_DStringAppendElement(dsPtr, StripBodyPrefix(ObjStr(procPtr->bodyPtr))); if (procs) { XOTclRequireClassOpt(cl); AssertionAppendPrePost(interp, dsPtr, procs); } Tcl_EvalEx(interp, Tcl_DStringValue(dsPtr), Tcl_DStringLength(dsPtr), 0); DSTRING_FREE(dsPtr); } else { /* XOTcl object-methods */ XOTclObject *obj = XOTclpGetObject(interp, fromNsPtr->fullName); XOTclProcAssertion *procs; if (obj) { procs = obj->opt ? AssertionFindProcs(obj->opt->assertions, name) : 0; } else { DECR_REF_COUNT(newFullCmdName); DECR_REF_COUNT(oldFullCmdName); DECR_REF_COUNT(arglistObj); return XOTclVarErrMsg(interp, "No object for assertions", (char *) NULL); } DSTRING_INIT(dsPtr); Tcl_DStringAppendElement(dsPtr, "::xotcl::method"); Tcl_DStringAppendElement(dsPtr, toNsPtr->fullName); Tcl_DStringAppendElement(dsPtr, "-per-object"); Tcl_DStringAppendElement(dsPtr, name); Tcl_DStringAppendElement(dsPtr, ObjStr(arglistObj)); Tcl_DStringAppendElement(dsPtr, StripBodyPrefix(ObjStr(procPtr->bodyPtr))); if (procs) { XOTclRequireObjectOpt(obj); AssertionAppendPrePost(interp, dsPtr, procs); } Tcl_EvalEx(interp, Tcl_DStringValue(dsPtr), Tcl_DStringLength(dsPtr), 0); DSTRING_FREE(dsPtr); } DECR_REF_COUNT(arglistObj); } else { /* Tcl Proc */ Tcl_VarEval(interp, "proc ", newName, " {", ObjStr(arglistObj), "} {\n", ObjStr(procPtr->bodyPtr), "}", (char *) NULL); } } else { /* * Otherwise copy command */ Tcl_ObjCmdProc *objProc = Tcl_Command_objProc(cmd); Tcl_CmdDeleteProc *deleteProc = Tcl_Command_deleteProc(cmd); ClientData clientData; if (objProc) { clientData = Tcl_Command_objClientData(cmd); if (clientData == NULL || clientData == (ClientData)XOTCL_CMD_NONLEAF_METHOD) { /* if client data not null, we would have to copy the client data; we don't know its size...., so rely on introspection for copying */ Tcl_CreateObjCommand(interp, newName, objProc, Tcl_Command_objClientData(cmd), deleteProc); } } else { clientData = Tcl_Command_clientData(cmd); if (clientData == NULL || clientData == (ClientData)XOTCL_CMD_NONLEAF_METHOD) { Tcl_CreateCommand(interp, newName, Tcl_Command_proc(cmd), Tcl_Command_clientData(cmd), deleteProc); } } } } hPtr = Tcl_NextHashEntry(&hSrch); DECR_REF_COUNT(newFullCmdName); DECR_REF_COUNT(oldFullCmdName); } return TCL_OK; } /* xotclCmd namespace_copyvars XOTclNSCopyVars { {-argName "fromNs" -required 1 -type tclobj} {-argName "toNs" -required 1 -type tclobj} } */ static int XOTclNSCopyVars(Tcl_Interp *interp, Tcl_Obj *fromNs, Tcl_Obj *toNs) { Tcl_Namespace *fromNsPtr, *toNsPtr; Var *varPtr = NULL; Tcl_HashSearch hSrch; Tcl_HashEntry *hPtr; TclVarHashTable *varTable; XOTclObject *obj, *destObj; char *destFullName; Tcl_Obj *destFullNameObj; TclCallFrame frame, *framePtr = &frame; Tcl_Obj *varNameObj = NULL; fromNsPtr = ObjFindNamespace(interp, fromNs); /*fprintf(stderr, "copyvars from %s to %s, ns=%p\n", ObjStr(objv[1]), ObjStr(objv[2]), ns);*/ if (fromNsPtr) { toNsPtr = ObjFindNamespace(interp, toNs); if (!toNsPtr) return XOTclVarErrMsg(interp, "CopyVars: Destination namespace ", ObjStr(toNs), " does not exist", (char *) NULL); obj = XOTclpGetObject(interp, ObjStr(fromNs)); destFullName = toNsPtr->fullName; destFullNameObj = Tcl_NewStringObj(destFullName, -1); INCR_REF_COUNT(destFullNameObj); varTable = Tcl_Namespace_varTable(fromNsPtr); Tcl_PushCallFrame(interp, (Tcl_CallFrame *)framePtr, toNsPtr, 0); } else { XOTclObject *newObj; if (GetObjectFromObj(interp, fromNs, &obj) != TCL_OK) { return XOTclVarErrMsg(interp, "CopyVars: Origin object/namespace ", ObjStr(fromNs), " does not exist", (char *) NULL); } if (GetObjectFromObj(interp, toNs, &newObj) != TCL_OK) { return XOTclVarErrMsg(interp, "CopyVars: Destination object/namespace ", ObjStr(toNs), " does not exist", (char *) NULL); } varTable = obj->varTable; destFullNameObj = newObj->cmdName; destFullName = ObjStr(destFullNameObj); } destObj = XOTclpGetObject(interp, destFullName); /* copy all vars in the ns */ hPtr = varTable ? Tcl_FirstHashEntry(VarHashTable(varTable), &hSrch) : NULL; while (hPtr) { getVarAndNameFromHash(hPtr, &varPtr, &varNameObj); INCR_REF_COUNT(varNameObj); if (!TclIsVarUndefined(varPtr) && !TclIsVarLink(varPtr)) { if (TclIsVarScalar(varPtr)) { /* it may seem odd that we do not copy obj vars with the * same SetVar2 as normal vars, but we want to dispatch it in order to * be able to intercept the copying */ if (obj) { /* fprintf(stderr, "copy in obj %s var %s val '%s'\n", objectName(obj), ObjStr(varNameObj), ObjStr(valueOfVar(Tcl_Obj, varPtr, objPtr)));*/ /* can't rely on "set", if there are multiple object systems */ setInstVar(interp, destObj, varNameObj, valueOfVar(Tcl_Obj, varPtr, objPtr)); } else { Tcl_ObjSetVar2(interp, varNameObj, NULL, valueOfVar(Tcl_Obj, varPtr, objPtr), TCL_NAMESPACE_ONLY); } } else { if (TclIsVarArray(varPtr)) { /* HERE!! PRE85 Why not [array get/set] based? Let the core iterate*/ TclVarHashTable *aTable = valueOfVar(TclVarHashTable, varPtr, tablePtr); Tcl_HashSearch ahSrch; Tcl_HashEntry *ahPtr = aTable ? Tcl_FirstHashEntry(VarHashTable(aTable), &ahSrch) :0; for (; ahPtr; ahPtr = Tcl_NextHashEntry(&ahSrch)) { Tcl_Obj *eltNameObj; Var *eltVar; getVarAndNameFromHash(ahPtr, &eltVar, &eltNameObj); INCR_REF_COUNT(eltNameObj); if (TclIsVarScalar(eltVar)) { if (obj) { XOTcl_ObjSetVar2((XOTcl_Object*)destObj, interp, varNameObj, eltNameObj, valueOfVar(Tcl_Obj, eltVar, objPtr), 0); } else { Tcl_ObjSetVar2(interp, varNameObj, eltNameObj, valueOfVar(Tcl_Obj, eltVar, objPtr), TCL_NAMESPACE_ONLY); } } DECR_REF_COUNT(eltNameObj); } } } } DECR_REF_COUNT(varNameObj); hPtr = Tcl_NextHashEntry(&hSrch); } if (fromNsPtr) { DECR_REF_COUNT(destFullNameObj); Tcl_PopCallFrame(interp); } return TCL_OK; } /* xotclCmd __qualify XOTclQualifyObjCmd { {-argName "name" -required 1 -type tclobj} } */ static int XOTclQualifyObjCmd(Tcl_Interp *interp, Tcl_Obj *name) { char *nameString = ObjStr(name); if (isAbsolutePath(nameString)) { Tcl_SetObjResult(interp, name); } else { Tcl_SetObjResult(interp, NameInNamespaceObj(interp, nameString, callingNameSpace(interp))); } return TCL_OK; } /* xotclCmd relation XOTclRelationCmd { {-argName "object" -type object} {-argName "relationtype" -required 1 -type "object-mixin|class-mixin|object-filter|class-filter|class|superclass|rootclass"} {-argName "value" -required 0 -type tclobj} } */ static int XOTclRelationCmd(Tcl_Interp *interp, XOTclObject *object, int relationtype, Tcl_Obj *value) { int oc; Tcl_Obj **ov; XOTclObject *nobj = NULL; XOTclClass *cl = NULL; XOTclObjectOpt *objopt = NULL; XOTclClassOpt *clopt = NULL, *nclopt = NULL; int i; /*fprintf(stderr, "XOTclRelationCmd %s %d rel=%d val='%s'\n", objectName(object), withPer_object, relationtype, value?ObjStr(value):"NULL");*/ /* set withPer_object according to object- or class- */ switch (relationtype) { case RelationtypeObject_filterIdx: case RelationtypeObject_mixinIdx: if (value == NULL) { objopt = object->opt; switch (relationtype) { case RelationtypeObject_mixinIdx: return objopt ? MixinInfo(interp, objopt->mixins, NULL, 1, NULL) : TCL_OK; case RelationtypeObject_filterIdx: return objopt ? FilterInfo(interp, objopt->filters, NULL, 1, 0) : TCL_OK; } } if (Tcl_ListObjGetElements(interp, value, &oc, &ov) != TCL_OK) return TCL_ERROR; objopt = XOTclRequireObjectOpt(object); break; case RelationtypeClass_mixinIdx: case RelationtypeClass_filterIdx: if (XOTclObjectIsClass(object)) { cl = (XOTclClass *)object; } else { return XOTclObjErrType(interp, object->cmdName, "Class"); } if (value == NULL) { clopt = cl->opt; switch (relationtype) { case RelationtypeClass_mixinIdx: return clopt ? MixinInfo(interp, clopt->classmixins, NULL, 1, NULL) : TCL_OK; case RelationtypeClass_filterIdx: return objopt ? FilterInfo(interp, clopt->classfilters, NULL, 1, 0) : TCL_OK; } } if (Tcl_ListObjGetElements(interp, value, &oc, &ov) != TCL_OK) return TCL_ERROR; clopt = XOTclRequireClassOpt(cl); break; case RelationtypeSuperclassIdx: if (!XOTclObjectIsClass(object)) return XOTclObjErrType(interp, object->cmdName, "Class"); cl = (XOTclClass *)object; if (value == NULL) { return ListSuperclasses(interp, cl, NULL, 0); } if (Tcl_ListObjGetElements(interp, value, &oc, &ov) != TCL_OK) return TCL_ERROR; return SuperclassAdd(interp, cl, oc, ov, value, cl->object.cl); case RelationtypeClassIdx: if (value == NULL) { Tcl_SetObjResult(interp, object->cl->object.cmdName); return TCL_OK; } GetClassFromObj(interp, value, &cl, object->cl); if (!cl) return XOTclErrBadVal(interp, "class", "a class", objectName(object)); return changeClass(interp, object, cl); case RelationtypeRootclassIdx: { XOTclClass *metaClass; if (!XOTclObjectIsClass(object)) return XOTclObjErrType(interp, object->cmdName, "Class"); cl = (XOTclClass *)object; if (value == NULL) { return XOTclVarErrMsg(interp, "metaclass must be specified as third argument", (char *) NULL); } GetClassFromObj(interp, value, &metaClass, 0); if (!metaClass) return XOTclObjErrType(interp, value, "Class"); cl->object.flags |= XOTCL_IS_ROOT_CLASS; metaClass->object.flags |= XOTCL_IS_ROOT_META_CLASS; XOTclClassListAdd(&RUNTIME_STATE(interp)->rootClasses, cl, (ClientData)metaClass); return TCL_OK; /* todo: need to remove these properties? allow to delete a classystem at runtime? */ } } switch (relationtype) { case RelationtypeObject_mixinIdx: { XOTclCmdList *newMixinCmdList = NULL; for (i = 0; i < oc; i++) { if (MixinAdd(interp, &newMixinCmdList, ov[i], object->cl->object.cl) != TCL_OK) { CmdListRemoveList(&newMixinCmdList, GuardDel); return TCL_ERROR; } } if (objopt->mixins) { XOTclCmdList *cmdlist, *del; for (cmdlist = objopt->mixins; cmdlist; cmdlist = cmdlist->nextPtr) { cl = XOTclGetClassFromCmdPtr(cmdlist->cmdPtr); clopt = cl ? cl->opt : NULL; if (clopt) { del = CmdListFindCmdInList(object->id, clopt->isObjectMixinOf); if (del) { /* fprintf(stderr, "Removing object %s from isObjectMixinOf of class %s\n", objectName(object), ObjStr(XOTclGetClassFromCmdPtr(cmdlist->cmdPtr)->object.cmdName)); */ del = CmdListRemoveFromList(&clopt->isObjectMixinOf, del); CmdListDeleteCmdListEntry(del, GuardDel); } } } CmdListRemoveList(&objopt->mixins, GuardDel); } object->flags &= ~XOTCL_MIXIN_ORDER_VALID; /* * since mixin procs may be used as filters -> we have to invalidate */ object->flags &= ~XOTCL_FILTER_ORDER_VALID; /* * now add the specified mixins */ objopt->mixins = newMixinCmdList; for (i = 0; i < oc; i++) { Tcl_Obj *ocl = NULL; /* fprintf(stderr, "Added to mixins of %s: %s\n", objectName(obj), ObjStr(ov[i])); */ Tcl_ListObjIndex(interp, ov[i], 0, &ocl); GetObjectFromObj(interp, ocl, &nobj); if (nobj) { /* fprintf(stderr, "Registering object %s to isObjectMixinOf of class %s\n", objectName(obj), objectName(nobj)); */ nclopt = XOTclRequireClassOpt((XOTclClass*) nobj); CmdListAdd(&nclopt->isObjectMixinOf, object->id, NULL, /*noDuplicates*/ 1); } /* else fprintf(stderr, "Problem registering %s as a mixinof of %s\n", ObjStr(ov[i]), className(cl)); */ } MixinComputeDefined(interp, object); FilterComputeDefined(interp, object); break; } case RelationtypeObject_filterIdx: if (objopt->filters) CmdListRemoveList(&objopt->filters, GuardDel); object->flags &= ~XOTCL_FILTER_ORDER_VALID; for (i = 0; i < oc; i ++) { if (FilterAdd(interp, &objopt->filters, ov[i], object, 0) != TCL_OK) return TCL_ERROR; } /*FilterComputeDefined(interp, obj);*/ break; case RelationtypeClass_mixinIdx: { XOTclCmdList *newMixinCmdList = NULL; for (i = 0; i < oc; i++) { if (MixinAdd(interp, &newMixinCmdList, ov[i], cl->object.cl) != TCL_OK) { CmdListRemoveList(&newMixinCmdList, GuardDel); return TCL_ERROR; } } if (clopt->classmixins) { RemoveFromClassMixinsOf(cl->object.id, clopt->classmixins); CmdListRemoveList(&clopt->classmixins, GuardDel); } MixinInvalidateObjOrders(interp, cl); /* * since mixin procs may be used as filters, * we have to invalidate the filters as well */ FilterInvalidateObjOrders(interp, cl); clopt->classmixins = newMixinCmdList; for (i = 0; i < oc; i++) { Tcl_Obj *ocl = NULL; /* fprintf(stderr, "Added to classmixins of %s: %s\n", className(cl), ObjStr(ov[i])); */ Tcl_ListObjIndex(interp, ov[i], 0, &ocl); GetObjectFromObj(interp, ocl, &nobj); if (nobj) { /* fprintf(stderr, "Registering class %s to isClassMixinOf of class %s\n", className(cl), objectName(nobj)); */ nclopt = XOTclRequireClassOpt((XOTclClass*) nobj); CmdListAdd(&nclopt->isClassMixinOf, cl->object.id, NULL, /*noDuplicates*/ 1); } /* else fprintf(stderr, "Problem registering %s as a class-mixin of %s\n", ObjStr(ov[i]), className(cl)); */ } break; } case RelationtypeClass_filterIdx: if (clopt->classfilters) CmdListRemoveList(&clopt->classfilters, GuardDel); FilterInvalidateObjOrders(interp, cl); for (i = 0; i < oc; i ++) { if (FilterAdd(interp, &clopt->classfilters, ov[i], 0, cl) != TCL_OK) return TCL_ERROR; } break; } return TCL_OK; } /* xotclCmd self XOTclGetSelfObjCmd { {-argName "selfoption" -required 0 -type "proc|class|activelevel|args|activemixin|calledproc|calledmethod|calledclass|callingproc|callingclass|callinglevel|callingobject|filterreg|isnextcall|next"} } */ static int XOTclGetSelfObjCmd(Tcl_Interp *interp, int selfoption) { XOTclObject *obj = GetSelfObj(interp); XOTclCallStackContent *cscPtr; int result = TCL_OK; /*fprintf(stderr, "getSelfObj returns %p\n", obj); tcl85showStack(interp);*/ if (selfoption == 0) { if (obj) { Tcl_SetObjResult(interp, obj->cmdName); return TCL_OK; } else { return XOTclVarErrMsg(interp, "self: no current object", (char *) NULL); } } if (!obj && selfoption != SelfoptionCallinglevelIdx) { return XOTclVarErrMsg(interp, "self: no current object", (char *) NULL); } switch (selfoption) { case SelfoptionProcIdx: { /* proc subcommand */ cscPtr = CallStackGetTopFrame(interp, NULL); if (cscPtr) { CONST char *procName = Tcl_GetCommandName(interp, cscPtr->cmdPtr); Tcl_SetResult(interp, (char *)procName, TCL_VOLATILE); } else { return XOTclVarErrMsg(interp, "Can't find proc", (char *) NULL); } break; } case SelfoptionClassIdx: { /* class subcommand */ cscPtr = CallStackGetTopFrame(interp, NULL); Tcl_SetObjResult(interp, cscPtr->cl ? cscPtr->cl->object.cmdName : XOTclGlobalObjects[XOTE_EMPTY]); break; } case SelfoptionActivelevelIdx: { Tcl_SetObjResult(interp, computeLevelObj(interp, ACTIVE_LEVEL)); break; } case SelfoptionArgsIdx: { int nobjc; Tcl_Obj **nobjv; Tcl_CallFrame *topFramePtr; cscPtr = CallStackGetTopFrame(interp, &topFramePtr); if (cscPtr->objv) { nobjc = cscPtr->objc; nobjv = cscPtr->objv; } else { nobjc = Tcl_CallFrame_objc(topFramePtr); nobjv = (Tcl_Obj **)Tcl_CallFrame_objv(topFramePtr); } Tcl_SetObjResult(interp, Tcl_NewListObj(nobjc-1, nobjv+1)); break; } case SelfoptionActivemixinIdx: { XOTclObject *o = NULL; if (RUNTIME_STATE(interp)->cmdPtr) { o = XOTclGetObjectFromCmdPtr(RUNTIME_STATE(interp)->cmdPtr); } Tcl_SetObjResult(interp, o ? o->cmdName : XOTclGlobalObjects[XOTE_EMPTY]); break; } case SelfoptionCalledprocIdx: case SelfoptionCalledmethodIdx: { cscPtr = CallStackFindActiveFilter(interp); if (cscPtr) { Tcl_SetObjResult(interp, cscPtr->filterStackEntry->calledProc); } else { result = XOTclVarErrMsg(interp, "called from outside of a filter", (char *) NULL); } break; } case SelfoptionCalledclassIdx: Tcl_SetResult(interp, className(FindCalledClass(interp, obj)), TCL_VOLATILE); break; case SelfoptionCallingprocIdx: cscPtr = XOTclCallStackFindLastInvocation(interp, 1, NULL); Tcl_SetResult(interp, cscPtr ? (char *)Tcl_GetCommandName(interp, cscPtr->cmdPtr) : "", TCL_VOLATILE); break; case SelfoptionCallingclassIdx: cscPtr = XOTclCallStackFindLastInvocation(interp, 1, NULL); Tcl_SetObjResult(interp, cscPtr && cscPtr->cl ? cscPtr->cl->object.cmdName : XOTclGlobalObjects[XOTE_EMPTY]); break; case SelfoptionCallinglevelIdx: if (!obj) { Tcl_SetIntObj(Tcl_GetObjResult(interp), 1); } else { Tcl_SetObjResult(interp, computeLevelObj(interp, CALLING_LEVEL)); } break; case SelfoptionCallingobjectIdx: cscPtr = XOTclCallStackFindLastInvocation(interp, 1, NULL); Tcl_SetObjResult(interp, cscPtr ? cscPtr->self->cmdName : XOTclGlobalObjects[XOTE_EMPTY]); break; case SelfoptionFilterregIdx: cscPtr = CallStackFindActiveFilter(interp); if (cscPtr) { Tcl_SetObjResult(interp, FilterFindReg(interp, obj, cscPtr->cmdPtr)); } else { result = XOTclVarErrMsg(interp, "self filterreg called from outside of a filter", (char *) NULL); } break; case SelfoptionIsnextcallIdx: { Tcl_CallFrame *framePtr; cscPtr = CallStackGetTopFrame(interp, &framePtr); #if defined(TCL85STACK) framePtr = nextFrameOfType(Tcl_CallFrame_callerPtr(framePtr), FRAME_IS_XOTCL_METHOD|FRAME_IS_XOTCL_CMETHOD); cscPtr = framePtr ? Tcl_CallFrame_clientData(framePtr) : NULL; #else cscPtr--; if (cscPtr <= RUNTIME_STATE(interp)->cs.content) cscPtr = NULL; #endif Tcl_SetBooleanObj(Tcl_GetObjResult(interp), (cscPtr && (cscPtr->callType & XOTCL_CSC_CALL_IS_NEXT))); break; } case SelfoptionNextIdx: result = FindSelfNext(interp, obj); break; } return result; } /* xotclCmd setinstvar XOTclSetInstvarCmd { {-argName "object" -required 1 -type object} {-argName "variable" -required 1 -type tclobj} {-argName "value" -required 0 -type tclobj} } */ static int XOTclSetInstvarCmd(Tcl_Interp *interp, XOTclObject *object, Tcl_Obj *variable, Tcl_Obj *value) { return setInstVar(interp, object, variable, value); } /* xotclCmd setter XOTclSetterCmd { {-argName "object" -required 1 -type object} {-argName "-per-object"} {-argName "methodName" -required 1} } */ static int XOTclSetterCmd(Tcl_Interp *interp, XOTclObject *object, int withPer_object, char *methodName) { int result; XOTclClass *cl = (withPer_object || ! XOTclObjectIsClass(object)) ? NULL : (XOTclClass *)object; if (cl) { result = XOTclAddClassMethod(interp, (XOTcl_Class *)cl, methodName, (Tcl_ObjCmdProc*)XOTclSetterMethod, 0, 0, 0); } else { result = XOTclAddObjectMethod(interp, (XOTcl_Object *)object, methodName, (Tcl_ObjCmdProc*)XOTclSetterMethod, 0, 0, 0); } if (result == TCL_OK) { result = ListMethodName(interp, object, withPer_object, methodName); } return result; } /*************************** * End generated XOTcl commands ***************************/ /*************************** * Begin Object Methods ***************************/ static int XOTclOAutonameMethod(Tcl_Interp *interp, XOTclObject *obj, int withInstance, int withReset, Tcl_Obj *name) { Tcl_Obj *autoname = AutonameIncr(interp, name, obj, withInstance, withReset); if (autoname) { Tcl_SetObjResult(interp, autoname); DECR_REF_COUNT(autoname); } else return XOTclVarErrMsg(interp, "Autoname failed. Probably format string (with %) was not well-formed", (char *) NULL); return TCL_OK; } static int XOTclOCleanupMethod(Tcl_Interp *interp, XOTclObject *obj) { XOTclClass *cl = XOTclObjectToClass(obj); char *fn; int softrecreate; Tcl_Obj *savedNameObj; #if defined(OBJDELETION_TRACE) fprintf(stderr, "+++ XOTclOCleanupMethod\n"); #endif PRINTOBJ("XOTclOCleanupMethod", obj); fn = objectName(obj); savedNameObj = obj->cmdName; INCR_REF_COUNT(savedNameObj); /* save and pass around softrecreate*/ softrecreate = obj->flags & XOTCL_RECREATE && RUNTIME_STATE(interp)->doSoftrecreate; CleanupDestroyObject(interp, obj, softrecreate); CleanupInitObject(interp, obj, obj->cl, obj->nsPtr, softrecreate); if (cl) { CleanupDestroyClass(interp, cl, softrecreate, 1); CleanupInitClass(interp, cl, cl->nsPtr, softrecreate, 1); } DECR_REF_COUNT(savedNameObj); return TCL_OK; } static int GetObjectParameterDefinition(Tcl_Interp *interp, char *methodName, XOTclObject *obj, XOTclParsedParam *parsedParamPtr) { int result; Tcl_Obj *rawConfArgs; /* * Parameter definitions are cached in the class, for which * instances are created. The parameter definitions are flushed in * the following situations: * * a) on class cleanup: ParsedParamFree(cl->parsedParamPtr) * b) on class structure changes, * c) when classmixins are added, * d) when new slots are defined, * e) when slots are removed * * When slot defaults or types are changed, the slots have to * perform a manual "$domain invalidateobjectparameter" */ /* * Check, if there is already a parameter definition available for * creating objects of this class. */ if (obj->cl->parsedParamPtr) { parsedParamPtr->paramDefs = obj->cl->parsedParamPtr->paramDefs; parsedParamPtr->possibleUnknowns = obj->cl->parsedParamPtr->possibleUnknowns; result = TCL_OK; } else { /* * There is no parameter definition available, get a new one in * the the string representation. */ /*fprintf(stderr, "calling %s objectparameter\n", objectName(obj));*/ result = callMethod((ClientData) obj, interp, XOTclGlobalObjects[XOTE_OBJECTPARAMETER], 2, 0, XOTCL_CM_NO_PROTECT); if (result == TCL_OK) { rawConfArgs = Tcl_GetObjResult(interp); INCR_REF_COUNT(rawConfArgs); /* Parse the string representation to obtain the internal representation */ result = ParamDefsParse(interp, methodName, rawConfArgs, XOTCL_ARG_OBJECT_PARAMETER, parsedParamPtr); if (result == TCL_OK && RUNTIME_STATE(interp)->cacheInterface) { XOTclParsedParam *ppDefPtr = NEW(XOTclParsedParam); ppDefPtr->paramDefs = parsedParamPtr->paramDefs; ppDefPtr->possibleUnknowns = parsedParamPtr->possibleUnknowns; obj->cl->parsedParamPtr = ppDefPtr; } DECR_REF_COUNT(rawConfArgs); } } return result; } static int XOTclOConfigureMethod(Tcl_Interp *interp, XOTclObject *obj, int objc, Tcl_Obj *CONST objv[]) { int result, i, remainingArgsc; XOTclParsedParam parsedParam; XOTclParam *paramPtr; XOTclParamDefs *paramDefs; Tcl_Obj *newValue; parseContext pc; XOTcl_FrameDecls; /* TODO: check for CONST, check for mem leaks and cleanups, especially XOTclParsedParam */ /* Get the object parameter definition */ result = GetObjectParameterDefinition(interp, ObjStr(objv[0]), obj, &parsedParam); if (result != TCL_OK || !parsedParam.paramDefs) { /*fprintf(stderr, "... nothing to do for method %s\n", ObjStr(objv[0]));*/ goto configure_exit; } /* Push frame to allow for [self] and make instvars of obj accessible as locals */ XOTcl_PushFrameObj(interp, obj); /* Process the actual arguments based on the parameter definitions */ paramDefs = parsedParam.paramDefs; result = ProcessMethodArguments(&pc, interp, obj, 0, paramDefs, "configure", objc, objv); if (result != TCL_OK) { XOTcl_PopFrameObj(interp, obj); parseContextRelease(&pc); goto configure_exit; } /* * At this point, the arguments are valid (according to the * parameter definitions) and the defaults are set. Now we have to * apply the arguments (mostly setting instance variables). */ #if defined(CONFIGURE_ARGS_TRACE) fprintf(stderr, "*** POPULATE OBJ '%s': nr of parsed args %d\n", objectName(obj), pc.objc); #endif for (i=1, paramPtr = paramDefs->paramsPtr; paramPtr->name; paramPtr++, i++) { newValue = pc.full_objv[i]; /*fprintf(stderr, "new Value of %s = %p '%s', type %s", ObjStr(paramPtr->nameObj), newValue, newValue ? ObjStr(newValue) : "(null)", paramPtr->type); */ if (newValue == XOTclGlobalObjects[XOTE___UNKNOWN__]) { /* nothing to do here */ continue; } /* special setter due to relation handling */ if (paramPtr->converter == convertToRelation) { ClientData relIdx; Tcl_Obj *relationObj = paramPtr->converterArg ? paramPtr->converterArg : paramPtr->nameObj; result = convertToRelationtype(interp, relationObj, paramPtr, &relIdx); if (result == TCL_OK) { result = XOTclRelationCmd(interp, obj, PTR2INT(relIdx), newValue); } if (result != TCL_OK) { XOTcl_PopFrameObj(interp, obj); parseContextRelease(&pc); goto configure_exit; } /* done with relation handling */ continue; } /* special setter for init commands */ if (paramPtr->flags & (XOTCL_ARG_INITCMD|XOTCL_ARG_METHOD)) { XOTcl_FrameDecls; /* The current callframe of configure uses an objscope, such that setvar etc. are able to access variables like "a" as a local variable. However, in the init block, we do not like that behavior, since this should look like like a proc body. So we push yet another callframe without providing the varframe. */ Tcl_PushCallFrame(interp, framePtr, obj->nsPtr, FRAME_IS_XOTCL_OBJECT); XOTcl_PushFrameSetCd(obj); if (paramPtr->flags & XOTCL_ARG_INITCMD) { result = Tcl_EvalObjEx(interp, newValue, TCL_EVAL_DIRECT); } else { result = callMethod((ClientData) obj, interp, paramPtr->nameObj, 2+(paramPtr->nrArgs), &newValue, 0); } Tcl_PopCallFrame(interp); /*fprintf(stderr, "XOTclOConfigureMethod_ attribute %s evaluated %s => (%d)\n", ObjStr(paramPtr->nameObj), ObjStr(newValue), result);*/ if (result != TCL_OK) { XOTcl_PopFrameObj(interp, obj); parseContextRelease(&pc); goto configure_exit; } /* done with init command handling */ continue; } /* set the variables unless the last argument of the definition is varArgs */ if (i < paramDefs->nrParams || !pc.varArgs) { /* standard setter */ #if defined(CONFIGURE_ARGS_TRACE) fprintf(stderr, "*** %s SET %s '%s'\n", objectName(obj), ObjStr(paramPtr->nameObj), ObjStr(newValue)); #endif Tcl_ObjSetVar2(interp, paramPtr->nameObj, NULL, newValue, TCL_LEAVE_ERR_MSG|TCL_PARSE_PART1); } } XOTcl_PopFrameObj(interp, obj); remainingArgsc = pc.objc - paramDefs->nrParams; /* Call residualargs when we have varargs and left over arguments */ if (pc.varArgs && remainingArgsc > 0) { result = callMethod((ClientData) obj, interp, XOTclGlobalObjects[XOTE_RESIDUALARGS], remainingArgsc+2, pc.full_objv + i-1, 0); if (result != TCL_OK) { parseContextRelease(&pc); goto configure_exit; } } else { Tcl_SetObjResult(interp, XOTclGlobalObjects[XOTE_EMPTY]); } parseContextRelease(&pc); configure_exit: if (parsedParam.paramDefs) { if (RUNTIME_STATE(interp)->cacheInterface == 0) { ParamDefsFree(parsedParam.paramDefs); } } return result; } static int DoDealloc(Tcl_Interp *interp, XOTclObject *delobj); static int XOTclODestroyMethod(Tcl_Interp *interp, XOTclObject *obj) { PRINTOBJ("XOTclODestroyMethod", obj); /*fprintf(stderr,"XOTclODestroyMethod %p %s flags %.6x activation %d cmd %p cmd->flags %.6x\n", obj, ((Command*)obj->id)->flags == 0 ? objectName(obj) : "(deleted)", obj->flags, obj->activationCount, obj->id, ((Command*)obj->id)->flags); */ /* * XOTCL_DESTROY_CALLED might be set already be callDestroyMethod(), * the implicit destroy calls. It is necessary to set it here for * the explicit destroy calls in the script, which reach the * Object->destroy. */ if ((obj->flags & XOTCL_DESTROY_CALLED) == 0) { obj->flags |= XOTCL_DESTROY_CALLED; } if ((obj->flags & XOTCL_DURING_DELETE) == 0) { int result; /*fprintf(stderr, " call dealloc on %p %s\n", obj, ((Command*)obj->id)->flags == 0 ? objectName(obj) : "(deleted)");*/ result = XOTclCallMethodWithArgs((ClientData)obj->cl, interp, XOTclGlobalObjects[XOTE_DEALLOC], obj->cmdName, 1, NULL, 0); if (result != TCL_OK) { obj->flags |= XOTCL_CMD_NOT_FOUND; fprintf(stderr, "*** dealloc failed for %p %s flags %.6x, retry\n", obj, objectName(obj), obj->flags); /* In case, the call of the dealloc method has failed above (e.g. NS_DYING), * we have to call dealloc manually, otherwise we have a memory leak */ result = DoDealloc(interp, obj); } return result; } else { #if defined(OBJDELETION_TRACE) fprintf(stderr, " Object->destroy already during delete, don't call dealloc %p\n", obj); #endif } return TCL_OK; } static int XOTclOExistsMethod(Tcl_Interp *interp, XOTclObject *obj, char *var) { Tcl_SetIntObj(Tcl_GetObjResult(interp), varExists(interp, obj, var, NULL, 1, 1)); return TCL_OK; } static int XOTclOFilterGuardMethod(Tcl_Interp *interp, XOTclObject *obj, char *filter, Tcl_Obj *guard) { XOTclObjectOpt *opt = obj->opt; if (opt && opt->filters) { XOTclCmdList *h = CmdListFindNameInList(interp, filter, opt->filters); if (h) { if (h->clientData) GuardDel((XOTclCmdList*) h); GuardAdd(interp, h, guard); obj->flags &= ~XOTCL_FILTER_ORDER_VALID; return TCL_OK; } } return XOTclVarErrMsg(interp, "Filterguard: can't find filter ", filter, " on ", objectName(obj), (char *) NULL); } /* * Searches for filter on [self] and returns fully qualified name * if it is not found it returns an empty string */ static int XOTclOFilterSearchMethod(Tcl_Interp *interp, XOTclObject *obj, char *filter) { XOTclCmdList *cmdList; XOTclClass *fcl; XOTclObject *fobj; Tcl_ResetResult(interp); if (!(obj->flags & XOTCL_FILTER_ORDER_VALID)) FilterComputeDefined(interp, obj); if (!(obj->flags & XOTCL_FILTER_ORDER_DEFINED)) return TCL_OK; for (cmdList = obj->filterOrder; cmdList; cmdList = cmdList->nextPtr) { CONST char *filterName = Tcl_GetCommandName(interp, cmdList->cmdPtr); if (filterName[0] == filter[0] && !strcmp(filterName, filter)) break; } if (!cmdList) return TCL_OK; fcl = cmdList->clorobj; if (fcl && XOTclObjectIsClass(&fcl->object)) { fobj = NULL; } else { fobj = (XOTclObject*)fcl; fcl = NULL; } Tcl_SetObjResult(interp, getFullProcQualifier(interp, filter, fobj, fcl, cmdList->cmdPtr)); return TCL_OK; } static int XOTclOInstVarMethod(Tcl_Interp *interp, XOTclObject *obj, int objc, Tcl_Obj *CONST objv[]) { callFrameContext ctx = {0}; int result; if (obj && (obj->filterStack || obj->mixinStack) ) { CallStackUseActiveFrames(interp, &ctx); } if (!Tcl_Interp_varFramePtr(interp)) { CallStackRestoreSavedFrames(interp, &ctx); return XOTclVarErrMsg(interp, "instvar used on ", objectName(obj), ", but callstack is not in procedure scope", (char *) NULL); } result = XOTclImportvarCmd(interp, obj, objc, objv); CallStackRestoreSavedFrames(interp, &ctx); return result; } static int XOTclOMixinGuardMethod(Tcl_Interp *interp, XOTclObject *obj, char *mixin, Tcl_Obj *guard) { XOTclObjectOpt *opt = obj->opt; if (opt && opt->mixins) { XOTclClass *mixinCl = XOTclpGetClass(interp, mixin); Tcl_Command mixinCmd = NULL; if (mixinCl) { mixinCmd = Tcl_GetCommandFromObj(interp, mixinCl->object.cmdName); } if (mixinCmd) { XOTclCmdList *h = CmdListFindCmdInList(mixinCmd, opt->mixins); if (h) { if (h->clientData) GuardDel((XOTclCmdList*) h); GuardAdd(interp, h, guard); obj->flags &= ~XOTCL_MIXIN_ORDER_VALID; return TCL_OK; } } } return XOTclVarErrMsg(interp, "Mixinguard: can't find mixin ", mixin, " on ", objectName(obj), (char *) NULL); } /* method for calling e.g. $obj __next */ static int XOTclONextMethod(Tcl_Interp *interp, XOTclObject *obj, int objc, Tcl_Obj *CONST objv[]) { XOTclCallStackContent *cscPtr = CallStackGetObjectFrame(interp, obj); char *methodName; if (!cscPtr) return XOTclVarErrMsg(interp, "__next: can't find object", objectName(obj), (char *) NULL); methodName = (char *)Tcl_GetCommandName(interp, cscPtr->cmdPtr); return XOTclNextMethod(obj, interp, cscPtr->cl, methodName, objc-1, &objv[1], 0, NULL); } static int XOTclONoinitMethod(Tcl_Interp *interp, XOTclObject *obj) { obj->flags |= XOTCL_INIT_CALLED; return TCL_OK; } static int XOTclORequireNamespaceMethod(Tcl_Interp *interp, XOTclObject *obj) { requireObjNamespace(interp, obj); return TCL_OK; } static int XOTclOResidualargsMethod(Tcl_Interp *interp, XOTclObject *obj, int objc, Tcl_Obj *CONST objv[]) { Tcl_Obj **argv, **nextArgv, *resultObj; int i, start = 1, argc, nextArgc, normalArgs, result = TCL_OK, isdasharg = NO_DASH; char *methodName, *nextMethodName; #if 0 /* if we got a single argument, try to split it (unless it starts * with our magic chars) to distinguish between * Object create foo {.method foo {} {...}} * and * Object create foo { * {.method foo {} {...}} * } */ if (objc == 2) { Tcl_Obj **ov; char *word = ObjStr(objv[1]); if (*word != '.' && *word != '-') { /* TODO '.' needed */ char *p = word; while (*p && *p != ' ') p++; if (*p) { /*fprintf(stderr, "split %s\n", word);*/ if (Tcl_ListObjGetElements(interp, objv[1], &objc, &ov) == TCL_OK) { objv = (Tcl_Obj *CONST*)ov; start = 0; } else { return TCL_ERROR; } } } } #endif /* find arguments without leading dash */ for (i=start; i < objc; i++) { if ((isdasharg = isDashArg(interp, objv[i], 1, &methodName, &argc, &argv))) { break; } } normalArgs = i-1; for( ; i < objc; argc=nextArgc, argv=nextArgv, methodName=nextMethodName) { Tcl_ResetResult(interp); switch (isdasharg) { case SKALAR_DASH: /* Argument is a skalar with a leading dash */ { int j; for (j = i+1; j < objc; j++, argc++) { if ((isdasharg = isDashArg(interp, objv[j], j==i+1, &nextMethodName, &nextArgc, &nextArgv))) { break; } } result = callConfigureMethod(interp, obj, methodName, argc+1, objv+i+1); if (result != TCL_OK) { return result; } i += argc; break; } case LIST_DASH: /* Argument is a list with a leading dash, grouping determined by list */ { i++; if (i2) { CallFrame *cf; frameInfo = ObjStr(objv[1]); result = TclGetFrame(interp, frameInfo, &cf); if (result == -1) { return TCL_ERROR; } framePtr = (Tcl_CallFrame *)cf; i = result+1; } else { i = 1; } objc -= i; objv += i; if (!framePtr) { XOTclCallStackFindLastInvocation(interp, 1, &framePtr); if (!framePtr) { framePtr = (Tcl_CallFrame *)Tcl_Interp_varFramePtr(interp)->callerVarPtr; if (!framePtr) { framePtr = (Tcl_CallFrame *)Tcl_Interp_varFramePtr(interp); } } } savedVarFramePtr = (Tcl_CallFrame *)Tcl_Interp_varFramePtr(interp); Tcl_Interp_varFramePtr(interp) = (CallFrame *)framePtr; /* * Execute the residual arguments as a command. */ if (objc == 1) { result = Tcl_EvalObjEx(interp, objv[0], TCL_EVAL_DIRECT); } else { /* * More than one argument: concatenate them together with spaces * between, then evaluate the result. Tcl_EvalObjEx will delete * the object when it decrements its refcount after eval'ing it. */ Tcl_Obj *objPtr = Tcl_ConcatObj(objc, objv); result = Tcl_EvalObjEx(interp, objPtr, TCL_EVAL_DIRECT); } if (result == TCL_ERROR) { char msg[32 + TCL_INTEGER_SPACE]; sprintf(msg, "\n (\"uplevel\" body line %d)", Tcl_GetErrorLine(interp)); Tcl_AddObjErrorInfo(interp, msg, -1); } /* * Restore the variable frame, and return. */ Tcl_Interp_varFramePtr(interp) = (CallFrame *)savedVarFramePtr; return result; } static int XOTclOUpvarMethod(Tcl_Interp *interp, XOTclObject *obj, int objc, Tcl_Obj *CONST objv[]) { Tcl_Obj *frameInfoObj = NULL; int i, result = TCL_ERROR; char *frameInfo; callFrameContext ctx = {0}; if (objc % 2 == 0) { frameInfo = ObjStr(objv[1]); i = 2; } else { frameInfoObj = computeLevelObj(interp, CALLING_LEVEL); INCR_REF_COUNT(frameInfoObj); frameInfo = ObjStr(frameInfoObj); i = 1; } if (obj && (obj->filterStack || obj->mixinStack)) { CallStackUseActiveFrames(interp, &ctx); } for ( ; i < objc; i += 2) { result = Tcl_UpVar2(interp, frameInfo, ObjStr(objv[i]), NULL, ObjStr(objv[i+1]), 0 /*flags*/); if (result != TCL_OK) break; } if (frameInfoObj) { DECR_REF_COUNT(frameInfoObj); } CallStackRestoreSavedFrames(interp, &ctx); return result; } static int XOTclOVolatileMethod(Tcl_Interp *interp, XOTclObject *obj) { Tcl_Obj *o = obj->cmdName; int result = TCL_ERROR; CONST char *fullName = ObjStr(o); CONST char *vn; callFrameContext ctx = {0}; if (RUNTIME_STATE(interp)->exitHandlerDestroyRound != XOTCL_EXITHANDLER_OFF) { fprintf(stderr, "### Can't make objects volatile during shutdown\n"); return XOTclVarErrMsg(interp, "Can't make objects volatile during shutdown\n", NULL); } CallStackUseActiveFrames(interp, &ctx); vn = NSTail(fullName); if (Tcl_SetVar2(interp, vn, NULL, fullName, 0)) { XOTclObjectOpt *opt = XOTclRequireObjectOpt(obj); /*fprintf(stderr, "### setting trace for %s on frame %p\n", fullName, Tcl_Interp_varFramePtr(interp));*/ result = Tcl_TraceVar(interp, vn, TCL_TRACE_UNSETS, (Tcl_VarTraceProc*)XOTclUnsetTrace, (ClientData)o); opt->volatileVarName = vn; } CallStackRestoreSavedFrames(interp, &ctx); if (result == TCL_OK) { INCR_REF_COUNT(o); } return result; } static int XOTclOVwaitMethod(Tcl_Interp *interp, XOTclObject *obj, char *varname) { int done, foundEvent; int flgs = TCL_TRACE_WRITES|TCL_TRACE_UNSETS; XOTcl_FrameDecls; /* * Make sure the var table exists and the varname is in there */ if (NSRequireVariableOnObj(interp, obj, varname, flgs) == 0) return XOTclVarErrMsg(interp, "Can't lookup (and create) variable ", varname, " on ", objectName(obj), (char *) NULL); XOTcl_PushFrameObj(interp, obj); /* * much of this is copied from Tcl, since we must avoid * access with flag TCL_GLOBAL_ONLY ... doesn't work on * obj->varTable vars */ if (Tcl_TraceVar(interp, varname, flgs, (Tcl_VarTraceProc *)VwaitVarProc, (ClientData) &done) != TCL_OK) { return TCL_ERROR; } done = 0; foundEvent = 1; while (!done && foundEvent) { foundEvent = Tcl_DoOneEvent(TCL_ALL_EVENTS); } Tcl_UntraceVar(interp, varname, flgs, (Tcl_VarTraceProc *)VwaitVarProc, (ClientData) &done); XOTcl_PopFrameObj(interp, obj); /* * Clear out the interpreter's result, since it may have been set * by event handlers. */ Tcl_ResetResult(interp); if (!foundEvent) { return XOTclVarErrMsg(interp, "can't wait for variable '", varname, "': would wait forever", (char *) NULL); } return TCL_OK; } /*************************** * End Object Methods ***************************/ /*************************** * Begin Class Methods ***************************/ static int XOTclCAllocMethod(Tcl_Interp *interp, XOTclClass *cl, Tcl_Obj *name) { Tcl_Obj *tmpName = NULL; char *nameString = ObjStr(name); int result; /* * create a new object from scratch */ /*fprintf(stderr, " **** 0 class '%s' wants to alloc '%s'\n", className(cl), name);*/ if (!NSCheckColons(nameString, 0)) { return XOTclVarErrMsg(interp, "Cannot allocate object -- illegal name '", nameString, "'", (char *) NULL); } /* * If the path is not absolute, we add the appropriate namespace */ if (!isAbsolutePath(nameString)) { name = tmpName = NameInNamespaceObj(interp, nameString, callingNameSpace(interp)); INCR_REF_COUNT(tmpName); /*fprintf(stderr, " **** NoAbsoluteName for '%s' -> determined = '%s'\n", name, ObjStr(tmpName));*/ nameString = ObjStr(tmpName); } if (IsMetaClass(interp, cl, 1)) { /* * if the base class is a meta-class, we create a class */ XOTclClass *newcl = PrimitiveCCreate(interp, name, cl); if (newcl == 0) { result = XOTclVarErrMsg(interp, "Class alloc failed for '", name, "' (possibly parent namespace does not exist)", (char *) NULL); } else { Tcl_SetObjResult(interp, name); result = TCL_OK; } } else { /* * if the base class is an ordinary class, we create an object */ XOTclObject *newObj = PrimitiveOCreate(interp, name, cl); if (newObj == 0) result = XOTclVarErrMsg(interp, "Object alloc failed for '", nameString, "' (possibly parent namespace does not exist)", (char *) NULL); else { Tcl_SetObjResult(interp, name); result = TCL_OK; } } if (tmpName) { DECR_REF_COUNT(tmpName); } return result; } static int XOTclCCreateMethod(Tcl_Interp *interp, XOTclClass *cl, char *name, int objc, Tcl_Obj *CONST objv[]) { if (RUNTIME_STATE(interp)->exitHandlerDestroyRound != XOTCL_EXITHANDLER_OFF) { fprintf(stderr, "### Can't create object %s during shutdown\n", ObjStr(objv[1])); return TCL_OK; /* don't fail, if this happens during destroy, it might be canceled */ } return createMethod(interp, cl, name, objc, objv); } static int DoDealloc(Tcl_Interp *interp, XOTclObject *delobj) { int result; /*delobj->flags |= XOTCL_DURING_DELETE;*/ /*fprintf(stderr, "DoDealloc obj= %s %p flags %.6x activation %d cmd %p opt=%p\n", objectName(delobj), delobj, delobj->flags, delobj->activationCount, delobj->id, delobj->opt);*/ result = freeUnsetTraceVariable(interp, delobj); if (result != TCL_OK) { return result; } /* * latch, and call delete command if not already in progress */ if (RUNTIME_STATE(interp)->exitHandlerDestroyRound != XOTCL_EXITHANDLER_ON_SOFT_DESTROY) { CallStackDestroyObject(interp, delobj); } /* fprintf(stderr, "DoDealloc obj=%p done\n", delobj);*/ return TCL_OK; } static int XOTclCDeallocMethod(Tcl_Interp *interp, XOTclClass *cl, Tcl_Obj *obj) { XOTclObject *delobject; /*fprintf(stderr, "XOTclCDeallocMethod obj %p %s\n",obj, ObjStr(obj));*/ if (GetObjectFromObj(interp, obj, &delobject) != TCL_OK) { fprintf(stderr, "XOTcl object %s does not exist\n", ObjStr(obj)); return XOTclVarErrMsg(interp, "Can't destroy object ", ObjStr(obj), " that does not exist.", (char *) NULL); } return DoDealloc(interp, delobject); } static int XOTclCNewMethod(Tcl_Interp *interp, XOTclClass *cl, XOTclObject *withChildof, int objc, Tcl_Obj *CONST objv[]) { Tcl_Obj *fullname; int result, prefixLength; Tcl_DString dFullname, *dsPtr = &dFullname; XOTclStringIncrStruct *iss = &RUNTIME_STATE(interp)->iss; Tcl_DStringInit(dsPtr); if (withChildof) { Tcl_DStringAppend(dsPtr, objectName(withChildof), -1); Tcl_DStringAppend(dsPtr, "::__#", 5); } else { Tcl_DStringAppend(dsPtr, "::xotcl::__#", 12); } prefixLength = dsPtr->length; while (1) { (void)XOTclStringIncr(iss); Tcl_DStringAppend(dsPtr, iss->start, iss->length); if (!Tcl_FindCommand(interp, Tcl_DStringValue(dsPtr), NULL, 0)) { break; } /* in case the value existed already, reset prefix to the original length */ Tcl_DStringSetLength(dsPtr, prefixLength); } fullname = Tcl_NewStringObj(Tcl_DStringValue(dsPtr), Tcl_DStringLength(dsPtr)); INCR_REF_COUNT(fullname); { ALLOC_ON_STACK(Tcl_Obj*, objc+3, ov); ov[0] = objv[0]; ov[1] = XOTclGlobalObjects[XOTE_CREATE]; ov[2] = fullname; if (objc >= 1) memcpy(ov+3, objv, sizeof(Tcl_Obj *)*objc); result = ObjectDispatch((ClientData)cl, interp, objc+3, ov, 0); FREE_ON_STACK(ov); } DECR_REF_COUNT(fullname); Tcl_DStringFree(dsPtr); return result; } static int XOTclCFilterGuardMethod(Tcl_Interp *interp, XOTclClass *cl, char *filter, Tcl_Obj *guard) { XOTclClassOpt *opt = cl->opt; if (opt && opt->classfilters) { XOTclCmdList *h = CmdListFindNameInList(interp, filter, opt->classfilters); if (h) { if (h->clientData) GuardDel(h); GuardAdd(interp, h, guard); FilterInvalidateObjOrders(interp, cl); return TCL_OK; } } return XOTclVarErrMsg(interp, "filterguard: can't find filter ", filter, " on ", className(cl), (char *) NULL); } static int XOTclCMixinGuardMethod(Tcl_Interp *interp, XOTclClass *cl, char *mixin, Tcl_Obj *guard) { XOTclClassOpt *opt = cl->opt; if (opt && opt->classmixins) { XOTclClass *mixinCl = XOTclpGetClass(interp, mixin); Tcl_Command mixinCmd = NULL; if (mixinCl) { mixinCmd = Tcl_GetCommandFromObj(interp, mixinCl->object.cmdName); } if (mixinCmd) { XOTclCmdList *h = CmdListFindCmdInList(mixinCmd, opt->classmixins); if (h) { if (h->clientData) GuardDel((XOTclCmdList*) h); GuardAdd(interp, h, guard); MixinInvalidateObjOrders(interp, cl); return TCL_OK; } } } return XOTclVarErrMsg(interp, "mixinguard: can't find mixin ", mixin, " on ", className(cl), (char *) NULL); } static int XOTclCInvalidateObjectParameterMethod(Tcl_Interp *interp, XOTclClass *cl) { if (cl->parsedParamPtr) { /*fprintf(stderr, " %s invalidate %p\n", className(cl), cl->parsedParamPtr);*/ ParsedParamFree(cl->parsedParamPtr); cl->parsedParamPtr = NULL; } return TCL_OK; } static int XOTclCRecreateMethod(Tcl_Interp *interp, XOTclClass *cl, Tcl_Obj *name, int objc, Tcl_Obj *CONST objv[]) { XOTclObject *newObj; int result; if (GetObjectFromObj(interp, name, &newObj) != TCL_OK) return XOTclVarErrMsg(interp, "can't recreate non existing object ", ObjStr(name), (char *) NULL); INCR_REF_COUNT(name); newObj->flags |= XOTCL_RECREATE; result = doCleanup(interp, newObj, &cl->object, objc, objv); if (result == TCL_OK) { result = doObjInitialization(interp, newObj, objc, objv); if (result == TCL_OK) Tcl_SetObjResult(interp, name); } DECR_REF_COUNT(name); return result; } /*************************** * End Class Methods ***************************/ /*************************** * Begin check Methods ***************************/ static int XOTclCheckBooleanArgs(Tcl_Interp *interp, char *name, Tcl_Obj *value) { int result, bool; Tcl_Obj *boolean; if (value == NULL) { /* the variable is not yet defined (set), so we cannot check whether it is boolean or not */ return TCL_OK; } boolean = Tcl_DuplicateObj(value); INCR_REF_COUNT(boolean); result = Tcl_GetBooleanFromObj(interp, boolean, &bool); DECR_REF_COUNT(boolean); Tcl_ResetResult(interp); Tcl_SetIntObj(Tcl_GetObjResult(interp), (result == TCL_OK)); return TCL_OK; } static int XOTclCheckRequiredArgs(Tcl_Interp *interp, char *name, Tcl_Obj *value) { if (value == NULL) { return XOTclVarErrMsg(interp, "required arg: '", name, "' missing", (char *) NULL); } Tcl_ResetResult(interp); Tcl_SetIntObj(Tcl_GetObjResult(interp), 1); return TCL_OK; } /*************************** * End check Methods ***************************/ /*************************** * Begin Object Info Methods ***************************/ static int XOTclObjInfoChildrenMethod(Tcl_Interp *interp, XOTclObject *object, char *pattern) { return ListChildren(interp, object, pattern, 0); } static int XOTclObjInfoClassMethod(Tcl_Interp *interp, XOTclObject *object) { Tcl_SetObjResult(interp, object->cl->object.cmdName); return TCL_OK; } static int XOTclObjInfoFilterMethod(Tcl_Interp *interp, XOTclObject *object, int withOrder, int withGuards, char *pattern) { XOTclObjectOpt *opt = object->opt; if (withOrder) { if (!(object->flags & XOTCL_FILTER_ORDER_VALID)) FilterComputeDefined(interp, object); return FilterInfo(interp, object->filterOrder, pattern, withGuards, 1); } return opt ? FilterInfo(interp, opt->filters, pattern, withGuards, 0) : TCL_OK; } static int XOTclObjInfoFilterguardMethod(Tcl_Interp *interp, XOTclObject *object, char *filter) { return object->opt ? GuardList(interp, object->opt->filters, filter) : TCL_OK; } static int XOTclObjInfoForwardMethod(Tcl_Interp *interp, XOTclObject *object, int withDefinition, char *pattern) { return object->nsPtr ? ListForward(interp, Tcl_Namespace_cmdTable(object->nsPtr), pattern, withDefinition) : TCL_OK; } static int XOTclObjInfoHasnamespaceMethod(Tcl_Interp *interp, XOTclObject *object) { Tcl_SetBooleanObj(Tcl_GetObjResult(interp), object->nsPtr != NULL); return TCL_OK; } static int AggregatedMethodType(int methodType) { switch (methodType) { case MethodtypeNULL: /* default */ case MethodtypeAllIdx: methodType = XOTCL_METHODTYPE_SCRIPTED|XOTCL_METHODTYPE_BUILTIN; break; case MethodtypeScriptedIdx: /*methodType = XOTCL_METHODTYPE_SCRIPTED|XOTCL_METHODTYPE_ALIAS;*/ methodType = XOTCL_METHODTYPE_SCRIPTED; break; case MethodtypeBuiltinIdx: methodType = XOTCL_METHODTYPE_BUILTIN; break; case MethodtypeForwarderIdx: methodType = XOTCL_METHODTYPE_FORWARDER; break; case MethodtypeAliasIdx: methodType = XOTCL_METHODTYPE_ALIAS; break; case MethodtypeSetterIdx: methodType = XOTCL_METHODTYPE_SETTER; break; case MethodtypeObjectIdx: methodType = XOTCL_METHODTYPE_OBJECT; break; default: methodType = 0; } return methodType; } static int XOTclClassInfoMethodsMethod(Tcl_Interp *interp, XOTclClass *class, int withMethodtype, int withCallproctection, int withNomixins, int withIncontext, char *pattern) { return ListDefinedMethods(interp, &class->object, pattern, 0 /* per-object */, AggregatedMethodType(withMethodtype), withCallproctection, withNomixins, withIncontext); } static int XOTclObjInfoMethodsMethod(Tcl_Interp *interp, XOTclObject *object, int withMethodtype, int withCallproctection, int withNomixins, int withIncontext, char *pattern) { return ListDefinedMethods(interp, object, pattern, 1 /* per-object */, AggregatedMethodType(withMethodtype), withCallproctection, withNomixins, withIncontext); } /* todo move me to the right place */ /* infoObjectMethod callable XOTclObjInfoCallableMethod { {-argName "object" -type object} {-argName "-which"} {-argName "-methodtype" -nrargs 1 -type "all|scripted|builtin|alias|forwarder|object|setter"} {-argName "-callprotection" -nrargs 1 -type "all|protected|public" -default all} {-argName "-application"} {-argName "-nomixins"} {-argName "-incontext"} {-argName "pattern" -required 0} */ static int XOTclObjInfoCallableMethod(Tcl_Interp *interp, XOTclObject *object, int withWhich, int withMethodtype, int withCallprotection, int withApplication, int withNomixins, int withIncontext, char *pattern) { if (withWhich) { XOTclClass *pcl = NULL; Tcl_Command cmd = ObjectFindMethod(interp, object, pattern, &pcl); if (cmd) { XOTclObject *pobj = pcl ? &pcl->object : object; int perObject = (pcl == NULL); ListMethod(interp, pobj, pattern, cmd, InfomethodsubcmdDefinitionIdx, perObject); } return TCL_OK; } return ListCallableMethods(interp, object, pattern, 1 /* per-object */, AggregatedMethodType(withMethodtype), withCallprotection, withApplication, withNomixins, withIncontext); } static int XOTclObjInfoMethodMethod(Tcl_Interp *interp, XOTclObject *object, int subcmd, char *methodName) { Tcl_Namespace *nsPtr = object->nsPtr; return ListMethod(interp, object, methodName, nsPtr ? FindMethod(nsPtr, methodName) : NULL, subcmd, 1); } static int XOTclClassInfoMethodMethod(Tcl_Interp *interp, XOTclClass *class, int subcmd, char *methodName) { Tcl_Namespace *nsPtr = class->nsPtr; return ListMethod(interp, &class->object, methodName, nsPtr ? FindMethod(nsPtr, methodName) : NULL, subcmd, 0); } static int XOTclObjInfoMixinMethod(Tcl_Interp *interp, XOTclObject *object, int withGuards, int withOrder, char *patternString, XOTclObject *patternObj) { if (withOrder) { if (!(object->flags & XOTCL_MIXIN_ORDER_VALID)) MixinComputeDefined(interp, object); return MixinInfo(interp, object->mixinOrder, patternString, withGuards, patternObj); } return object->opt ? MixinInfo(interp, object->opt->mixins, patternString, withGuards, patternObj) : TCL_OK; } static int XOTclObjInfoMixinguardMethod(Tcl_Interp *interp, XOTclObject *object, char *mixin) { return object->opt ? GuardList(interp, object->opt->mixins, mixin) : TCL_OK; } static int XOTclObjInfoParentMethod(Tcl_Interp *interp, XOTclObject *object) { if (object->id) { Tcl_SetResult(interp, NSCmdFullName(object->id), TCL_VOLATILE); } return TCL_OK; } static int XOTclObjInfoPrecedenceMethod(Tcl_Interp *interp, XOTclObject *object, int withIntrinsicOnly, char *pattern) { XOTclClasses *precedenceList = NULL, *pl; precedenceList = ComputePrecedenceList(interp, object, pattern, !withIntrinsicOnly, 1); for (pl = precedenceList; pl; pl = pl->nextPtr) { char *name = className(pl->cl); Tcl_AppendElement(interp, name); } XOTclClassListFree(pl); return TCL_OK; } static int XOTclObjInfoSlotObjectsMethod(Tcl_Interp *interp, XOTclObject *object, char *pattern) { XOTclObjects *pl; Tcl_Obj *list = Tcl_NewListObj(0, NULL); pl = computeSlotObjects(interp, object, pattern /* not used */, 1); for (; pl; pl = pl->nextPtr) { Tcl_ListObjAppendElement(interp, list, pl->obj->cmdName); } XOTclObjectListFree(pl); Tcl_SetObjResult(interp, list); return TCL_OK; } static int XOTclObjInfoVarsMethod(Tcl_Interp *interp, XOTclObject *object, char *pattern) { Tcl_Obj *varlist, *okList, *element; int i, length; TclVarHashTable *varTable = object->nsPtr ? Tcl_Namespace_varTable(object->nsPtr) : object->varTable; #if defined(PRE85) # if FORWARD_COMPATIBLE if (forwardCompatibleMode) { ListVarKeys(interp, VarHashTable(varTable), pattern); } else { ListKeys(interp, varTable, pattern); } # else ListKeys(interp, varTable, pattern); # endif #else ListVarKeys(interp, VarHashTable(varTable), pattern); #endif varlist = Tcl_GetObjResult(interp); Tcl_ListObjLength(interp, varlist, &length); okList = Tcl_NewListObj(0, NULL); for (i=0; iorder, Super); Tcl_ResetResult(interp); if (pl) pl=pl->nextPtr; for (; pl; pl = pl->nextPtr) { AppendMatchingElement(interp, pl->cl->object.cmdName, pattern); } return TCL_OK; } /* * get all instances of a class recursively into an initialized * String key hashtable */ static int XOTclClassInfoInstancesMethod1(Tcl_Interp *interp, XOTclClass *startCl, int withClosure, char *pattern, XOTclObject *matchObject) { Tcl_HashTable *table = &startCl->instances; XOTclClasses *sc; Tcl_HashSearch search; Tcl_HashEntry *hPtr; int rc = 0; /*fprintf(stderr, "XOTclClassInfoInstancesMethod: clo %d pattern %s match %p\n", withClosure, pattern, matchObject);*/ for (hPtr = Tcl_FirstHashEntry(table, &search); hPtr; hPtr = Tcl_NextHashEntry(&search)) { XOTclObject *inst = (XOTclObject*) Tcl_GetHashKey(table, hPtr); /*fprintf(stderr, "match '%s' %p %p '%s'\n", matchObject ? objectName(matchObject) : "NULL", matchObject, inst, objectName(inst));*/ if (matchObject && inst == matchObject) { Tcl_SetObjResult(interp, matchObject->cmdName); return 1; } AppendMatchingElement(interp, inst->cmdName, pattern); } if (withClosure) { for (sc = startCl->sub; sc; sc = sc->nextPtr) { rc = XOTclClassInfoInstancesMethod1(interp, sc->cl, withClosure, pattern, matchObject); if (rc) break; } } return rc; } static int XOTclClassInfoInstancesMethod(Tcl_Interp *interp, XOTclClass *startCl, int withClosure, char *pattern, XOTclObject *matchObject) { XOTclClassInfoInstancesMethod1(interp, startCl, withClosure, pattern, matchObject); return TCL_OK; } static int XOTclClassInfoFilterMethod(Tcl_Interp *interp, XOTclClass * class, int withGuards, char * pattern) { return class->opt ? FilterInfo(interp, class->opt->classfilters, pattern, withGuards, 0) : TCL_OK; } static int XOTclClassInfoFilterguardMethod(Tcl_Interp *interp, XOTclClass * class, char * filter) { return class->opt ? GuardList(interp, class->opt->classfilters, filter) : TCL_OK; } static int XOTclClassInfoForwardMethod(Tcl_Interp *interp, XOTclClass *class, int withDefinition, char *pattern) { return ListForward(interp, Tcl_Namespace_cmdTable(class->nsPtr), pattern, withDefinition); } static int XOTclClassInfoMixinMethod(Tcl_Interp *interp, XOTclClass * class, int withClosure, int withGuards, char *patternString, XOTclObject *patternObj) { XOTclClassOpt *opt = class->opt; int rc; if (withClosure) { Tcl_HashTable objTable, *commandTable = &objTable; MEM_COUNT_ALLOC("Tcl_InitHashTable", commandTable); Tcl_InitHashTable(commandTable, TCL_ONE_WORD_KEYS); rc = getAllClassMixins(interp, commandTable, class, withGuards, patternString, patternObj); if (patternObj && rc && !withGuards) { Tcl_SetObjResult(interp, rc ? patternObj->cmdName : XOTclGlobalObjects[XOTE_EMPTY]); } MEM_COUNT_FREE("Tcl_InitHashTable", commandTable); } else { rc = opt ? MixinInfo(interp, opt->classmixins, patternString, withGuards, patternObj) : TCL_OK; } return TCL_OK; } static int XOTclClassInfoMixinguardMethod(Tcl_Interp *interp, XOTclClass * class, char * mixin) { return class->opt ? GuardList(interp, class->opt->classmixins, mixin) : TCL_OK; } static int XOTclClassInfoClassMixinOfMethod(Tcl_Interp *interp, XOTclClass * class, int withClosure, char *patternString, XOTclObject *patternObj) { XOTclClassOpt *opt = class->opt; int rc; if (opt) { if (withClosure) { Tcl_HashTable objTable, *commandTable = &objTable; MEM_COUNT_ALLOC("Tcl_InitHashTable", commandTable); Tcl_InitHashTable(commandTable, TCL_ONE_WORD_KEYS); rc = getAllClassMixinsOf(interp, commandTable, class, 0, 1, patternString, patternObj); MEM_COUNT_FREE("Tcl_InitHashTable", commandTable); } else { rc = AppendMatchingElementsFromCmdList(interp, opt->isClassMixinOf, patternString, patternObj); } if (patternObj) { Tcl_SetObjResult(interp, rc ? patternObj->cmdName : XOTclGlobalObjects[XOTE_EMPTY]); } } return TCL_OK; } static int XOTclClassInfoObjectMixinOfMethod(Tcl_Interp *interp, XOTclClass * class, int withClosure, char *patternString, XOTclObject *patternObj) { XOTclClassOpt *opt = class->opt; int rc = 0; if (opt && !withClosure) { rc = AppendMatchingElementsFromCmdList(interp, opt->isObjectMixinOf, patternString, patternObj); } else if (withClosure) { Tcl_HashTable objTable, *commandTable = &objTable; MEM_COUNT_ALLOC("Tcl_InitHashTable", commandTable); Tcl_InitHashTable(commandTable, TCL_ONE_WORD_KEYS); rc = getAllObjectMixinsOf(interp, commandTable, class, 0, 1, patternString, patternObj); MEM_COUNT_FREE("Tcl_InitHashTable", commandTable); } if (patternObj) { Tcl_SetObjResult(interp, rc ? patternObj->cmdName : XOTclGlobalObjects[XOTE_EMPTY]); } return TCL_OK; } static int XOTclClassInfoParameterMethod(Tcl_Interp *interp, XOTclClass * class) { Tcl_DString ds, *dsPtr = &ds; XOTclObject *obj; DSTRING_INIT(dsPtr); Tcl_DStringAppend(dsPtr, className(class), -1); Tcl_DStringAppend(dsPtr, "::slot", 6); obj = XOTclpGetObject(interp, Tcl_DStringValue(dsPtr)); if (obj) { Tcl_Obj *varNameObj = Tcl_NewStringObj("__parameter",-1); Tcl_Obj *parameters = XOTcl_ObjGetVar2((XOTcl_Object*)obj, interp, varNameObj, NULL, TCL_LEAVE_ERR_MSG); if (parameters) { Tcl_SetObjResult(interp, parameters); } DECR_REF_COUNT(varNameObj); } DSTRING_FREE(dsPtr); return TCL_OK; } static int XOTclClassInfoSlotsMethod(Tcl_Interp *interp, XOTclClass * class) { Tcl_DString ds, *dsPtr = &ds; XOTclObject *obj; int result; DSTRING_INIT(dsPtr); Tcl_DStringAppend(dsPtr, className(class), -1); Tcl_DStringAppend(dsPtr, "::slot", 6); obj = XOTclpGetObject(interp, Tcl_DStringValue(dsPtr)); if (obj) { result = ListChildren(interp, obj, NULL, 0); } else { result = TCL_OK; } DSTRING_FREE(dsPtr); return result; } static int XOTclClassInfoSubclassMethod(Tcl_Interp *interp, XOTclClass * class, int withClosure, char *patternString, XOTclObject *patternObj) { int rc; if (withClosure) { XOTclClasses *saved = class->order, *subclasses; class->order = NULL; subclasses = ComputeOrder(class, class->order, Sub); class->order = saved; if (subclasses) subclasses=subclasses->nextPtr; rc = AppendMatchingElementsFromClasses(interp, subclasses, patternString, patternObj); XOTclClassListFree(subclasses); } else { rc = AppendMatchingElementsFromClasses(interp, class->sub, patternString, patternObj); } if (patternObj) { Tcl_SetObjResult(interp, rc ? patternObj->cmdName : XOTclGlobalObjects[XOTE_EMPTY]); } return TCL_OK; } static int XOTclClassInfoSuperclassMethod(Tcl_Interp *interp, XOTclClass *class, int withClosure, Tcl_Obj *pattern) { return ListSuperclasses(interp, class, pattern, withClosure); } /*************************** * End Class Info methods ***************************/ /* * New Tcl Commands */ #if defined(PRE85) int XOTclInitProcNSCmd(ClientData clientData, Tcl_Interp *interp, int objc, Tcl_Obj *CONST objv[]) { Tcl_CallFrame *varFramePtr = (Tcl_CallFrame *) Tcl_Interp_varFramePtr(interp); /*RUNTIME_STATE(interp)->varFramePtr = varFramePtr;*/ if (RUNTIME_STATE(interp)->cs.top->currentFramePtr == NULL) { RUNTIME_STATE(interp)->cs.top->currentFramePtr = varFramePtr; } return TCL_OK; } #endif #if defined(CANONICAL_ARGS) static int ProcessMethodArguments(parseContext *pcPtr, Tcl_Interp *interp, XOTclObject *obj, int pushFrame, XOTclParamDefs *paramDefs, char *methodName, int objc, Tcl_Obj *CONST objv[]) { int result; XOTcl_FrameDecls; if (obj && pushFrame) { XOTcl_PushFrameObj(interp, obj); } result = ArgumentParse(interp, objc, objv, obj, objv[0], paramDefs->paramsPtr, paramDefs->nrParams, pcPtr); if (obj && pushFrame) { XOTcl_PopFrameObj(interp, obj); } if (result != TCL_OK) { return result; } /* * Set objc of the parse context to the number of defined parameters. * pcPtr->objc and paramDefs->nrParams will be equivalent in cases * where argument values are passed to the call in absence of var * args ('args'). Treating "args is more involved (see below). */ pcPtr->objc = paramDefs->nrParams + 1; if (pcPtr->varArgs) { /* * The last argument was "args". */ int elts = objc - pcPtr->lastobjc; if (elts == 0) { /* * No arguments were passed to "args". We simply decrement objc. */ pcPtr->objc--; } else if (elts > 1) { /* * Multiple arguments were passed to "args". pcPtr->objv is * pointing to the first of the var args. We have to copy the * remaining actual argument vector objv to the parse context. */ /*XOTclPrintObjv("actual: ", objc, objv);*/ parseContextExtendObjv(pcPtr, paramDefs->nrParams, elts-1, objv + 1 + pcPtr->lastobjc); } else { /* * A single argument was passed to "args". There is no need to * mutate the pcPtr->objv, because this has been achieved in * ArgumentParse (i.e., pcPtr->objv[i] contains this element). */ } } return TCL_OK; } /* XOTclUnsetUnknownArgsCmd was developed and tested for Tcl 8.5 and * needs probably modifications for earlier versions of Tcl. However, * since CANONICAL_ARGS requires Tcl 8.5 this is not an issue. */ int XOTclUnsetUnknownArgsCmd(ClientData clientData, Tcl_Interp *interp, int objc, Tcl_Obj *CONST objv[]) { CallFrame *varFramePtr = Tcl_Interp_varFramePtr(interp); Proc *proc = Tcl_CallFrame_procPtr(varFramePtr); int i; if (proc) { CompiledLocal *ap; Var *varPtr; for (ap = proc->firstLocalPtr, i=0; ap; ap = ap->nextPtr, i++) { if (!TclIsCompiledLocalArgument(ap)) continue; varPtr = &Tcl_CallFrame_compiledLocals(varFramePtr)[i]; /*fprintf(stderr, "XOTclUnsetUnknownArgsCmd var '%s' i %d fi %d var %p flags %.8x obj %p unk %p\n", ap->name, i, ap->frameIndex, varPtr, varPtr->flags, varPtr->value.objPtr, XOTclGlobalObjects[XOTE___UNKNOWN__]);*/ if (varPtr->value.objPtr != XOTclGlobalObjects[XOTE___UNKNOWN__]) continue; /*fprintf(stderr, "XOTclUnsetUnknownArgsCmd must unset %s\n", ap->name);*/ Tcl_UnsetVar2(interp, ap->name, NULL, 0); } } return TCL_OK; } #else int XOTclInterpretNonpositionalArgsCmd(ClientData clientData, Tcl_Interp *interp, int objc, Tcl_Obj *CONST objv[]) { XOTclCallStackContent *cscPtr = CallStackGetFrame(interp, NULL); XOTclParamDefs *paramDefs = ParamDefsGet(cscPtr->cmdPtr); char *procName = (char *)Tcl_GetCommandName(interp, cscPtr->cmdPtr); Tcl_Obj *proc = Tcl_NewStringObj(procName, -1); XOTclParam CONST *pPtr; parseContext pc; int i, result; /* The arguments are passed via argument vector (not the single argument) at least for Tcl 8.5 or newer. TODO: Tcl 8.4 support? possible via introspection? (this is a possible TODO for optimization) */ /*if (!paramDefs) {return TCL_OK;}*/ INCR_REF_COUNT(proc); result = ArgumentParse(interp, objc, objv, cscPtr->self, proc, paramDefs->paramsPtr, objc, &pc); DECR_REF_COUNT(proc); if (result != TCL_OK) { #if defined(CANONICAL_ARGS) parseContextRelease(pcPtr); #endif return result; } /* apply the arguments, which means to set the appropiate instance variables */ for (pPtr = paramDefs->paramsPtr, i=0; pPtr->name; pPtr++, i++) { if (pc.objv[i] && pc.objv[i] != XOTclGlobalObjects[XOTE___UNKNOWN__]) { /* * if we have a provided value, we set it. */ Tcl_SetVar2(interp, pPtr->nameObj, NULL, pc.objv[i], 0); } } /* special handling of "args" */ if (pc.varArgs) { /* "args" was specified */ int elts = objc - pc.lastobjc; Tcl_SetVar2Ex(interp, "args", NULL, Tcl_NewListObj(elts, objv+pc.lastobjc), 0); } else { Tcl_UnsetVar2(interp, "args", NULL, 0); } #if defined(CANONICAL_ARGS) parseContextRelease(pcPtr); #endif return TCL_OK; } #endif #if !defined(NDEBUG) static void checkAllInstances(Tcl_Interp *interp, XOTclClass *cl, int lvl) { Tcl_HashSearch search; Tcl_HashEntry *hPtr; if (cl && cl->object.refCount>0) { /*fprintf(stderr, "checkallinstances %d cl=%p '%s'\n", lvl, cl, className(cl));*/ for (hPtr = Tcl_FirstHashEntry(&cl->instances, &search); hPtr; hPtr = Tcl_NextHashEntry(&search)) { XOTclObject *interpst = (XOTclObject*) Tcl_GetHashKey(&cl->instances, hPtr); assert(inst); assert(inst->refCount>0); assert(inst->cmdName->refCount>0); if (XOTclObjectIsClass(inst) && (XOTclClass*)inst != RUNTIME_STATE(interp)->theClass) { checkAllInstances(interp, (XOTclClass*) inst, lvl+1); } } } } #endif #ifdef DO_FULL_CLEANUP /* delete global variables and procs */ static void deleteProcsAndVars(Tcl_Interp *interp) { Tcl_Namespace *nsPtr = Tcl_GetGlobalNamespace(interp); Tcl_HashTable *varTable = nsPtr ? Tcl_Namespace_varTable(ns) : NULL; Tcl_HashTable *cmdTable = nsPtr ? Tcl_Namespace_cmdTable(ns) : NULL; Tcl_HashSearch search; Var *varPtr; Tcl_Command cmd; register Tcl_HashEntry *entryPtr; char *varName; for (entryPtr = Tcl_FirstHashEntry(varTable, &search); entryPtr; entryPtr = Tcl_NextHashEntry(&search)) { Tcl_Obj *nameObj; getVarAndNameFromHash(entryPtr, &varPtr, &nameObj); if (!TclIsVarUndefined(varPtr) || TclIsVarNamespaceVar(varPtr)) { /* fprintf(stderr, "unsetting var %s\n", ObjStr(nameObj));*/ Tcl_UnsetVar2(interp, ObjStr(nameObj), (char *)NULL, TCL_GLOBAL_ONLY); } } for (entryPtr = Tcl_FirstHashEntry(cmdTable, &search); entryPtr; entryPtr = Tcl_NextHashEntry(&search)) { cmd = (Tcl_Command)Tcl_GetHashValue(entryPtr); if (Tcl_Command_objProc(cmd) == RUNTIME_STATE(interp)->objInterpProc) { char *key = Tcl_GetHashKey(cmdTable, entryPtr); /*fprintf(stderr, "cmdname = %s cmd %p proc %p objProc %p %d\n", key, cmd, Tcl_Command_proc(cmd), Tcl_Command_objProc(cmd), Tcl_Command_proc(cmd)==RUNTIME_STATE(interp)->objInterpProc);*/ Tcl_DeleteCommandFromToken(interp, cmd); } } } #endif #ifdef DO_CLEANUP static int ClassHasSubclasses(XOTclClass *cl) { return (cl->sub != NULL); } static int ClassHasInstances(XOTclClass *cl) { Tcl_HashSearch hSrch; return (Tcl_FirstHashEntry(&cl->instances, &hSrch) != NULL); } static int ObjectHasChildren(Tcl_Interp *interp, XOTclObject *obj) { Tcl_Namespace *ns = obj->nsPtr; int result = 0; if (ns) { Tcl_HashEntry *hPtr; Tcl_HashSearch hSrch; Tcl_HashTable *cmdTable = Tcl_Namespace_cmdTable(ns); XOTcl_FrameDecls; XOTcl_PushFrameObj(interp, obj); /* TODO: needed? */ for (hPtr = Tcl_FirstHashEntry(cmdTable, &hSrch); hPtr; hPtr = Tcl_NextHashEntry(&hSrch)) { char *key = Tcl_GetHashKey(cmdTable, hPtr); if (XOTclpGetObject(interp, key)) { /*fprintf(stderr, "child = %s\n", key);*/ result = 1; break; } } XOTcl_PopFrameObj(interp, obj); } return result; } static void freeAllXOTclObjectsAndClasses(Tcl_Interp *interp, Tcl_HashTable *commandTable) { Tcl_HashEntry *hPtr; Tcl_HashSearch hSrch; XOTclObject *obj; XOTclClass *cl; /* fprintf(stderr, "??? freeAllXOTclObjectsAndClasses in %p\n", interp); */ /***** PHYSICAL DESTROY *****/ RUNTIME_STATE(interp)->exitHandlerDestroyRound = XOTCL_EXITHANDLER_ON_PHYSICAL_DESTROY; while (1) { int deleted = 0; for (hPtr = Tcl_FirstHashEntry(commandTable, &hSrch); hPtr; hPtr = Tcl_NextHashEntry(&hSrch)) { char *key = Tcl_GetHashKey(commandTable, hPtr); obj = XOTclpGetObject(interp, key); if (obj && !XOTclObjectIsClass(obj) && !ObjectHasChildren(interp, obj)) { /* fprintf(stderr, " ... delete object %s %p, class=%s\n", key, obj, className(obj->cl));*/ freeUnsetTraceVariable(interp, obj); if (obj->id) Tcl_DeleteCommandFromToken(interp, obj->id); Tcl_DeleteHashEntry(hPtr); deleted++; } } /* fprintf(stderr, "deleted %d Objects\n", deleted);*/ if (deleted > 0) { continue; } for (hPtr = Tcl_FirstHashEntry(commandTable, &hSrch); hPtr; hPtr = Tcl_NextHashEntry(&hSrch)) { char *key = Tcl_GetHashKey(commandTable, hPtr); cl = XOTclpGetClass(interp, key); /* fprintf(stderr, "cl key = %s %p\n", key, cl); */ if (cl && !ObjectHasChildren(interp, (XOTclObject*)cl) && !ClassHasInstances(cl) && !ClassHasSubclasses(cl) && !IsBaseClass(cl) ) { /* fprintf(stderr, " ... delete class %s %p\n", key, cl); */ freeUnsetTraceVariable(interp, &cl->object); if (cl->object.id) Tcl_DeleteCommandFromToken(interp, cl->object.id); Tcl_DeleteHashEntry(hPtr); deleted++; } } /* fprintf(stderr, "deleted %d Classes\n", deleted);*/ if (deleted == 0) { break; } } } static void freeRootClasses(Tcl_Interp *interp, XOTclClass *rootClass, XOTclClass *rootMetaClass) { RemoveSuper(rootMetaClass, rootClass); RemoveInstance((XOTclObject*)rootMetaClass, rootMetaClass); RemoveInstance((XOTclObject*)rootClass, rootMetaClass); Tcl_DeleteCommandFromToken(interp, rootClass->object.id); Tcl_DeleteCommandFromToken(interp, rootMetaClass->object.id); } #endif /* DO_CLEANUP */ static int destroyObjectSystems(Tcl_Interp *interp) { XOTclObject *obj; XOTclClass *cl, *rootClass, *rootMetaClass; Tcl_HashTable objTable, *commandTable = &objTable; Tcl_HashSearch hSrch; Tcl_HashEntry *hPtr; XOTclClasses *os; /* deleting in two rounds: * (a) SOFT DESTROY: call all user-defined destroys * (b) PHYSICAL DESTROY: delete the commands, user-defined * destroys are not executed anymore * * this is to prevent user-defined destroys from overriding physical * destroy during exit handler, but still ensure that all * user-defined destroys are called. */ Tcl_InitHashTable(commandTable, TCL_STRING_KEYS); MEM_COUNT_ALLOC("Tcl_InitHashTable", commandTable); /* collect all instances from all object systems */ for (os = RUNTIME_STATE(interp)->rootClasses; os; os = os->nextPtr) { rootClass = os->cl; rootMetaClass = (XOTclClass *)os->clientData; /*fprintf(stderr, "destroyObjectSystem deletes %s\n", className(rootClass));*/ getAllInstances(interp, commandTable, rootClass); } /***** SOFT DESTROY *****/ RUNTIME_STATE(interp)->exitHandlerDestroyRound = XOTCL_EXITHANDLER_ON_SOFT_DESTROY; for (hPtr = Tcl_FirstHashEntry(commandTable, &hSrch); hPtr; hPtr = Tcl_NextHashEntry(&hSrch)) { char *key = Tcl_GetHashKey(commandTable, hPtr); obj = XOTclpGetObject(interp, key); /* fprintf(stderr, "key = %s %p %d\n", key, obj, obj && !XOTclObjectIsClass(obj)); */ if (obj && !XOTclObjectIsClass(obj) && !(obj->flags & XOTCL_DESTROY_CALLED)) { callDestroyMethod(interp, obj, 0); } } for (hPtr = Tcl_FirstHashEntry(commandTable, &hSrch); hPtr; hPtr = Tcl_NextHashEntry(&hSrch)) { char *key = Tcl_GetHashKey(commandTable, hPtr); cl = XOTclpGetClass(interp, key); if (cl && !(cl->object.flags & XOTCL_DESTROY_CALLED)) { callDestroyMethod(interp, (XOTclObject *)cl, 0); } } #ifdef DO_CLEANUP freeAllXOTclObjectsAndClasses(interp, commandTable); /*fprintf(stderr, "delete root classes\n");*/ for (os = RUNTIME_STATE(interp)->rootClasses; os; os = os->nextPtr) { rootClass = os->cl; rootMetaClass = (XOTclClass *)os->clientData; /*fprintf(stderr, "physical destroy on %s\n", className(rootClass));*/ freeRootClasses(interp, rootClass, rootMetaClass); } #ifdef DO_FULL_CLEANUP deleteProcsAndVars(interp); #endif #endif MEM_COUNT_FREE("Tcl_InitHashTable", commandTable); Tcl_DeleteHashTable(commandTable); return TCL_OK; } /* * Exit Handler */ static void ExitHandler(ClientData clientData) { Tcl_Interp *interp = (Tcl_Interp *)clientData; int i, flags; /* * Don't use exit handler, if the interpreted is destroyed already * Call to exit handler comes after freeing namespaces, commands, etc. * e.g. TK calls Tcl_DeleteInterp directly, if Window is killed */ /* * Ahem ... * * Since we *must* be sure that our destroy methods will run * we must *cheat* (I mean CHEAT) here: we flip the interp * flag, saying, "hey boy, you're not deleted any more". * After our handlers are done, we restore the old state... * All this is needed so we can do an eval in the interp which * is potentially marked for delete when we start working here. * * I know, I know, this is not really elegant. But... I'd need a * standard way of invoking some code at interpreter delete time * but JUST BEFORE the actual deletion process starts. Sadly, * there is no such hook in Tcl as of Tcl8.4.*, that I know of. * * So, for the rest of procedure, assume the interp is alive ! */ flags = Tcl_Interp_flags(interp); Tcl_Interp_flags(interp) &= ~DELETED; CallStackPopAll(interp); if (RUNTIME_STATE(interp)->exitHandlerDestroyRound == XOTCL_EXITHANDLER_OFF) { XOTclFinalizeObjCmd(interp); } /* must be before freeing of XOTclGlobalObjects */ XOTclShadowTclCommands(interp, SHADOW_UNLOAD); /* free global objects */ for (i = 0; i < nr_elements(XOTclGlobalStrings); i++) { DECR_REF_COUNT(XOTclGlobalObjects[i]); } XOTclStringIncrFree(&RUNTIME_STATE(interp)->iss); #if defined(TCL_MEM_DEBUG) TclDumpMemoryInfo(stderr); Tcl_DumpActiveMemory("./xotclActiveMem"); /* Tcl_GlobalEval(interp, "puts {checkmem to checkmemFile}; checkmem checkmemFile"); */ #endif MEM_COUNT_DUMP(); FREE(Tcl_Obj**, XOTclGlobalObjects); FREE(XOTclRuntimeState, RUNTIME_STATE(interp)); Tcl_Interp_flags(interp) = flags; Tcl_Release((ClientData) interp); } #if defined(TCL_THREADS) /* * Gets activated at thread-exit */ static void XOTcl_ThreadExitProc(ClientData clientData) { /*fprintf(stderr, "+++ XOTcl_ThreadExitProc\n");*/ void XOTcl_ExitProc(ClientData clientData); Tcl_DeleteExitHandler(XOTcl_ExitProc, clientData); ExitHandler(clientData); } #endif /* * Gets activated at application-exit */ void XOTcl_ExitProc(ClientData clientData) { /*fprintf(stderr, "+++ XOTcl_ExitProc\n");*/ #if defined(TCL_THREADS) Tcl_DeleteThreadExitHandler(XOTcl_ThreadExitProc, clientData); #endif ExitHandler(clientData); } /* * Registers thread/appl exit handlers. */ static void RegisterExitHandlers(ClientData clientData) { Tcl_Preserve(clientData); #if defined(TCL_THREADS) Tcl_CreateThreadExitHandler(XOTcl_ThreadExitProc, clientData); #endif Tcl_CreateExitHandler(XOTcl_ExitProc, clientData); } /* * Tcl extension initialization routine */ extern int Xotcl_Init(Tcl_Interp *interp) { ClientData runtimeState; int result, i; #ifdef XOTCL_BYTECODE XOTclCompEnv *interpstructions = XOTclGetCompEnv(); #endif #ifdef USE_TCL_STUBS if (Tcl_InitStubs(interp, "8.1", 0) == NULL) { return TCL_ERROR; } #endif #if defined(TCL_MEM_DEBUG) TclDumpMemoryInfo(stderr); #endif MEM_COUNT_INIT(); /* fprintf(stderr, "SIZES: obj=%d, tcl_obj=%d, DString=%d, class=%d, namespace=%d, command=%d, HashTable=%d\n", sizeof(XOTclObject), sizeof(Tcl_Obj), sizeof(Tcl_DString), sizeof(XOTclClass), sizeof(Namespace), sizeof(Command), sizeof(Tcl_HashTable)); */ #if FORWARD_COMPATIBLE { int major, minor, patchlvl, type; Tcl_GetVersion(&major, &minor, &patchlvl, &type); if ((major == 8) && (minor < 5)) { /* * loading a version of xotcl compiled for 8.4 version * into a 8.4 Tcl */ /* fprintf(stderr, "loading a version of xotcl compiled for 8.4 version into a 8.4 Tcl\n"); */ forwardCompatibleMode = 0; lookupVarFromTable = LookupVarFromTable84; tclVarHashCreateVar = VarHashCreateVar84; tclInitVarHashTable = InitVarHashTable84; tclCleanupVar = TclCleanupVar84; varRefCountOffset = TclOffset(Var, refCount); varHashTableSize = sizeof(Tcl_HashTable); } else { /* * loading a version of xotcl compiled for 8.4 version * into a 8.5 Tcl */ /* fprintf(stderr, "loading a version of xotcl compiled for 8.4 version into a 8.5 Tcl\n"); */ forwardCompatibleMode = 1; lookupVarFromTable = LookupVarFromTable85; tclVarHashCreateVar = VarHashCreateVar85; tclInitVarHashTable = (Tcl_InitVarHashTableFunction*)*((&tclIntStubsPtr->reserved0)+235); tclCleanupVar = (Tcl_CleanupVarFunction*)*((&tclIntStubsPtr->reserved0)+176); varRefCountOffset = TclOffset(VarInHash, refCount); varHashTableSize = sizeof(TclVarHashTable85); } } #endif /* * Runtime State stored in the client data of the Interp's global * Namespace in order to avoid global state information */ runtimeState = (ClientData) NEW(XOTclRuntimeState); #if USE_ASSOC_DATA Tcl_SetAssocData(interp, "XOTclRuntimeState", NULL, runtimeState); #else Tcl_Interp_globalNsPtr(interp)->clientData = runtimeState; #endif memset(RUNTIME_STATE(interp), 0, sizeof(XOTclRuntimeState)); #if !defined(TCL85STACK) /* CallStack initialization */ memset(RUNTIME_STATE(interp)->cs.content, 0, sizeof(XOTclCallStackContent)); RUNTIME_STATE(interp)->cs.top = RUNTIME_STATE(interp)->cs.content; #endif RUNTIME_STATE(interp)->doFilters = 1; RUNTIME_STATE(interp)->cacheInterface = 1; /* TODO xxx should not stay */ /* create xotcl namespaces */ RUNTIME_STATE(interp)->XOTclNS = Tcl_CreateNamespace(interp, "::xotcl", (ClientData)NULL, (Tcl_NamespaceDeleteProc*)NULL); MEM_COUNT_ALLOC("TclNamespace", RUNTIME_STATE(interp)->XOTclNS); /* * init an empty, faked proc structure in the RUNTIME state */ RUNTIME_STATE(interp)->fakeProc.iPtr = (Interp *)interp; RUNTIME_STATE(interp)->fakeProc.refCount = 1; RUNTIME_STATE(interp)->fakeProc.cmdPtr = NULL; RUNTIME_STATE(interp)->fakeProc.bodyPtr = NULL; RUNTIME_STATE(interp)->fakeProc.numArgs = 0; RUNTIME_STATE(interp)->fakeProc.numCompiledLocals = 0; RUNTIME_STATE(interp)->fakeProc.firstLocalPtr = NULL; RUNTIME_STATE(interp)->fakeProc.lastLocalPtr = NULL; /* XOTclClasses in separate Namespace / Objects */ RUNTIME_STATE(interp)->XOTclClassesNS = Tcl_CreateNamespace(interp, "::xotcl::classes", (ClientData)NULL, (Tcl_NamespaceDeleteProc*)NULL); MEM_COUNT_ALLOC("TclNamespace", RUNTIME_STATE(interp)->XOTclClassesNS); /* cache interpreters proc interpretation functions */ RUNTIME_STATE(interp)->objInterpProc = TclGetObjInterpProc(); RUNTIME_STATE(interp)->exitHandlerDestroyRound = XOTCL_EXITHANDLER_OFF; RegisterExitHandlers((ClientData)interp); XOTclStringIncrInit(&RUNTIME_STATE(interp)->iss); /* initialize global Tcl_Obj */ XOTclGlobalObjects = NEW_ARRAY(Tcl_Obj*, nr_elements(XOTclGlobalStrings)); for (i = 0; i < nr_elements(XOTclGlobalStrings); i++) { XOTclGlobalObjects[i] = Tcl_NewStringObj(XOTclGlobalStrings[i],-1); INCR_REF_COUNT(XOTclGlobalObjects[i]); } /* create namespaces for the different command types */ Tcl_CreateNamespace(interp, "::xotcl::cmd", 0, (Tcl_NamespaceDeleteProc*)NULL); for (i=0; i < nr_elements(method_command_namespace_names); i++) { Tcl_CreateNamespace(interp, method_command_namespace_names[i], 0, (Tcl_NamespaceDeleteProc*)NULL); } /* create all method commands (will use the namespaces above) */ for (i=0; i < nr_elements(method_definitions)-1; i++) { Tcl_CreateObjCommand(interp, method_definitions[i].methodName, method_definitions[i].proc, 0, 0); } /* * overwritten tcl objs */ result = XOTclShadowTclCommands(interp, SHADOW_LOAD); if (result != TCL_OK) return result; /* * new tcl cmds */ #ifdef XOTCL_BYTECODE instructions[INST_NEXT].cmdPtr = (Command *) #endif Tcl_CreateObjCommand(interp, "::xotcl::next", XOTclNextObjCmd, 0, 0); #ifdef XOTCL_BYTECODE instructions[INST_SELF].cmdPtr = (Command *)Tcl_FindCommand(interp, "::xotcl::self", 0, 0); #endif /*Tcl_CreateObjCommand(interp, "::xotcl::K", XOTclKObjCmd, 0, 0);*/ #if defined(PRE85) # ifdef XOTCL_BYTECODE instructions[INST_INITPROC].cmdPtr = (Command *) # endif Tcl_CreateObjCommand(interp, "::xotcl::initProcNS", XOTclInitProcNSCmd, 0, 0); #endif #if !defined(CANONICAL_ARGS) Tcl_CreateObjCommand(interp, "::xotcl::interpretNonpositionalArgs", XOTclInterpretNonpositionalArgsCmd, 0, 0); #else Tcl_CreateObjCommand(interp, "::xotcl::unsetUnknownArgs", XOTclUnsetUnknownArgsCmd, 0, 0); #endif Tcl_Export(interp, RUNTIME_STATE(interp)->XOTclNS, "self", 0); Tcl_Export(interp, RUNTIME_STATE(interp)->XOTclNS, "next", 0); Tcl_Export(interp, RUNTIME_STATE(interp)->XOTclNS, "my", 0); Tcl_Export(interp, RUNTIME_STATE(interp)->XOTclNS, "importvar", 0); #ifdef XOTCL_BYTECODE XOTclBytecodeInit(); #endif Tcl_SetVar(interp, "::xotcl::version", XOTCLVERSION, TCL_GLOBAL_ONLY); Tcl_SetVar(interp, "::xotcl::patchlevel", XOTCLPATCHLEVEL, TCL_GLOBAL_ONLY); #if defined(USE_COMPILED_VAR_RESOLVER) Tcl_AddInterpResolvers(interp,"xotcl", (Tcl_ResolveCmdProc*)InterpDotCmdResolver, InterpDotVarResolver, (Tcl_ResolveCompiledVarProc*)InterpCompiledDotVarResolver); RUNTIME_STATE(interp)->dotCmd = Tcl_FindCommand(interp, "::xotcl::dot", 0, 0); RUNTIME_STATE(interp)->dotDotCmd = Tcl_FindCommand(interp, "::xotcl::dotdot", 0, 0); #endif /* * with some methods and library procs in tcl - they could go in a * xotcl.tcl file, but they're embedded here with Tcl_GlobalEval * to avoid the need to carry around a separate file at runtime. */ { #include "predefined.h" /* fprintf(stderr, "predefined=<<%s>>\n", cmd);*/ if (Tcl_GlobalEval(interp, cmd) != TCL_OK) { static char cmd[] = "puts stderr \"Error in predefined code\n\ $::errorInfo\""; Tcl_EvalEx(interp, cmd, -1, 0); return TCL_ERROR; } } #ifndef AOL_SERVER /* the AOL server uses a different package loading mechanism */ # ifdef COMPILE_XOTCL_STUBS # if defined(PRE86) Tcl_PkgProvideEx(interp, "XOTcl", PACKAGE_VERSION, (ClientData)&xotclStubs); # else Tcl_PkgProvideEx(interp, "XOTcl", PACKAGE_VERSION, (ClientData)&xotclConstStubPtr); # endif # else Tcl_PkgProvide(interp, "XOTcl", PACKAGE_VERSION); # endif #endif #if !defined(TCL_THREADS) if ((Tcl_GetVar2(interp, "tcl_platform", "threaded", TCL_GLOBAL_ONLY) != NULL)) { /* a non threaded XOTcl version is loaded into a threaded environment */ fprintf(stderr, "\n A non threaded XOTCL version is loaded into threaded environment\n Please reconfigure XOTcl with --enable-threads!\n\n\n"); } #endif Tcl_ResetResult(interp); Tcl_SetIntObj(Tcl_GetObjResult(interp), 1); return TCL_OK; } extern int Xotcl_SafeInit(Tcl_Interp *interp) { /*** dummy for now **/ return Xotcl_Init(interp); }