predefined.xotcl

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- reanimated "info vars" to show locals in eval method

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- removed "[o exists varname]" from next scripting language

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Merge branch 'nx-doc' into 2.0.0-develop

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- I created a first draft of the nx language manual, based on the new next::doc facilities. It is still incomplete, but demonstrates the use of next::doc for authoring code documentation.

To re-create the language reference (which is not yet integrated into

the build environment), run:

./nextsh tests/doc.xotcl

You will then find an output directory "NextLanguageCore" in your

/tmp/ directory.

- The next::doc comments which are sourced for generating the manual

can be found in generic/gentclAPI.decls and

generic/predefined.xotcl. I tried to add most comments to the

former, as the complexity of the predefined script does not comfort

documentation comments (and vice versa).

- Applied many fixes to the templates (based on the needs of the

language reference)

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- define ensemble-like command for accessing instance variables ::nx::var set ... ::nx::var import ... ::nx::var exists ...

- provide explicit error message stating the "substdefault" is not allowed for setters - don't add "substdefault" a second time, in case it was already used - never add "substdefault" to methodopts - extended regression test

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- changed prefix from "::next::" to "::nx"

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- namespace changes: mostly due to marketing reasons, the naming of the top-level namespace changed from "xotcl2" to "next". reasons: xotcl is hard to pronounce for beginners, sounds like "exotic" (but who wants to program in an exotic language) has a certain stigma of strange namings (e.g. "instproc"), is seen as a precursor of tcloo, the top-level namespace ::xotcl2:: is not very nice either, the separation of framework and language is not clear.

We have now:

::next (the new object system, former ::xotcl2)

::next::core (framework, primitives)

::xotcl (former xotcl1)

- "::xotcl::use" no longer needed, use Tcl standard mechanisms instead

(e.g. "package req next"; "package req XOTcl", "namespace import ::next*")

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- ::xotcl:.configure: added option "keepinitcmd" to flag, whether or not initcmds should be kept as instance variables

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- remove unneeded attribute for method setter

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- Allow to speficy last arg of objectparameter to replace scripted init block. The redefinition of objectparameter allows us to specify whether no/some/classical/altered/additional arguments should be allowed during object creation

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- provide prefix for internally called methods to distinguish between methods called on objects or classes

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- eliminated XOTE___UNKNOWN - renamed __unknown to requireobject

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- first part of allowing arbitrary named internally called methods.

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- fixing "-parameter" with empty content - more variable naming cleanup - fix line breaking in serializer for "exportedObjects"

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- make sure a childobject ::slot exists after calling "-parameter"

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- fix syntax in predefined - let serializer call "init" of attributes, even if it is protected

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- fixed wrong name for per-object filter in RelationSlot - fixed condition in filter-incovation to top-level frames - added frametype to information returned by "info frame"

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- remove dependency from xotcl1 in handling of forwarders in method "copy" - further cleanup using "CONST char *", improving on naming conventions

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- use "::xotcl::current" instead of "xotcl::self" in predefined

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- defined "xotcl::current" as synonym for "::xotcl::self" - new options for ::xotcl::current current object == current current method == current proc current callingmethod == current callingproc - "self proc" and friends are for backward compatibility for xotcl1, "current method" and friends are for xotcl2 - namespace exported "::xotcl::current"

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- renaming of instance variable specific primitiva for more constistency with ::xotcl::importvar:

::xotcl::exists -> ::xotcl::existsvar

::xotcl::setinstvar -> ::xotcl::setvar

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- added option "-nonleaf" for method alias - added introspection (for "info method definition") for "alias ... -nonleaf ..."

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- XOTclCallStackFindLastInvocation(): return last scripted invocation - use xotcl1 in webserver test to make rull regression test working - make xotcl::use silent

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- fixed namespace handling on stack for objects with namespaces (before, it was possible that a variable was created in an object's namespace without -objscope) - as a consequence, ListChildren() had to be adjused, since it depended on the previous namespace handling on the stack - fixed object sesolving in NsDotVarResolver() (before, it was possible that NsDotVarResolver could create variables in the wrong namespace) - simplified NsDotVarResolver() - more cleanup in name resolver * USE_DOT is gone * XOTclDotDotCmd() removed * improved performance of InterpCompiledDotVarResolver() * made LookupVarFromTable() obsolete and removed it * renamed DotVarResolver() and friends to ColonVarResolver() etc. - extended regression test

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- replaced in predefined occurances of ::xotcl::is by ::xotcl::objectproperty

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- defined "info is" as alias of "::xotcl::objectproperty"

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- renamed old "xotcl::is" -> "xotcl::objectproperty" - renamed old "xotcl::is2" -> "xotcl::is" - we have now is tests for objects in ::xotcl::objectproperty ::xotcl::objectproperty $obj object ::xotcl::objectproperty $obj class ::xotcl::objectproperty $obj baseclass ::xotcl::objectproperty $obj metaclass ::xotcl::objectproperty $obj type XXXX ::xotcl::objectproperty $obj hasmixin XXXX

- "::xotcl::is" is the higher level command,

supporting string contstraints "e.g. upper", user defined type checkers

and as well object properties (every parameter type supported for object

and method paameter). Examples:

::xotcl::is $obj object ?-type $type? ?-hasmixin $mixin?

::xotcl::is $cl class ?-type $type? ?-hasmixin $mixin?

::xotcl::is obj metaclass

::xotcl::is $num integer

::xotcl::is $string upper

- implemented 2nd level reference counting for paramObjType

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- Unified on c-level "info class-mixin-of" and "info object-mixin-of" to "info mixinof ?-scope all|object|class? ?-closure? ?pattern? The former "info class-mixin-of" is now "info mixinof -scope class" - adapted xotcl1 layer for this change - extended experimental ::xotcl::is2 to handle flags -type and -hasmixin ::xotcl::is2 <obj> object ?-type <type>? ?-hasmixin <class>?

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- support for method modifier "object", "protected" and "public" for method "attribute". One can use now e.g.

Class create C {

:attribute a

:public attribute b

:protected attribute c

:object attribute A

:public object attribute B

:protected object attribute C

}

"protected" and "public" refers to the registered accessor functions

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