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nsf.c - fixed a bug in "info methods returns" in cases, where no returns info was available. - we can "/obj/ copy" now objects/classes containing * aliases * setter * ensemble methods * method protections Instead of handling cmd copying in NsfNSCopyCmdsCmd, it is replaced now by introspection. - extended regression test

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- when creation with an required configure parameter failed, delete the half-baked object to avoid confusing states.

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- changed ::nsf::parametersyntax(..) to ::nsf::parameter::syntax(..) - xotcl2: adjusted manual parameter syntax entries to new conventions

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- removed some TODOs from tests/parameters.test

- parameter dispositions:

We differentiate now between "initcmd" and "cmd": an "initcmd" is only

evaluated once, but one can provide configure values for this parameter

later. a "cmd" is executed on every evaluation, it is only possible

to pass cmds to it. The trailing argument of the configure parameters

(used e.g. for scripted object/class definitions) is now of type "cmd".

Implementation not yet complete (object cases are not correct).

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- C-code Generator: added "-typeName" for enumeration types that allows for disambiguation of enumerations with different argument names. Before that, the argument name determined the c-type of the enumeration. Therefore it was not possible to use argName "-type" for two different functions with a different list of enumerators.

- changed "-methodtype" to simply "-type" in

/obj/ info methods ... ?-type all|scripted|builtin|alias|forwarder|object|setter|nsfproc? ...

/obj/ info object methods ... ?-type all|scripted|builtin|alias|forwarder|object|setter|nsfproc? ...

/obj/ info lookup methods ... ?-type all|scripted|builtin|alias|forwarder|object|setter|nsfproc? ...

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- XOTcl2: ensure public accessor when "-parameter ..." is used

- nx.tcl: handle "incremental" in slot reconfigure - nx.tcl: change defaultAccessor to "none"

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- syntax formatter: use /value/ for denoting placeholder in "... info method syntax ..."

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- bumped version number to 2.0b5 - tested with NaviServer and OpenACS (new version of nx needs as well a newest NaviServer, since ns_cache implementation needs to be objectified; newest NaviServer version works as well with older nx)

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Object-method Reform: - changed interface to object specific commands by requiring an ensemble named "object". The rational behind is essentially to use always the same info command to retrieve object specific methods, no matter whether these are defined on a plain object or an a class object (does not break the "contract" what e.g. "info method" returns).

Now we define methods via:

/cls/ method foo {args} {...body...}

/cls/ object method foo {args} {...body...}

/obj/ object method foo {args} {...body...}

Similarly, aliases, forwards and mixins are defined, e.g.

/cls/ mixin add ...

/cls/ object mixin add ...

/obj/ object mixin add ...

/obj/ require object method ...

The same change propagated as well to the "info" method.

Now we have:

/cls/ info methods ...

/cls/ info object methods ...

/obj/ info object methods ...

Similar, the object parametererization uses

/cls/ create obj -object-mixin M

/cls/ create obj -object-filter f

/metacls/ create cls -mixin M1 -object-mixin M2

/metacls/ create cls -filter f1 -object-filter f2

- as a consequence,

a) "/cls/ class method ...",

"/cls/ class alias ...",

"/cls/ class forward ...",

"/cls/ class filter ...",

"/cls/ class mixin ...",

"/cls/ class info ..."

"/obj/ class method require method ..."

"/obj/ class method require public method ..."

"/obj/ class method require protected method ..."

"/obj/ class method require private method ..."

were dropped

b) "/obj/ method ....",

"/obj/ alias ....",

"/obj/ forward ...."

"/obj/ filter ...."

"/obj/ mixin ...."

"/obj/ info method*"

"/cls/ create obj -mixin M"

"/cls/ create obj -filter f"

"/obj/ method require method ..."

"/obj/ method require public method ..."

"/obj/ method require protected method ..."

"/obj/ method require private method ..."

were dropped

- added package nx::class to allow optionally the "class" notation

"/cls/ class method ..." (and friends, see (a)), and

"/cls/ class info ...

- added package nx::plain-object-method to allow optionally plain method

b) "/obj/ method ...." (and friends, see (b))

- add support to slots to use ensemble methods as setters

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Checked built and test suite against Tcl 8.6rc2 (core-8-6-0-rc) under MinGW32; removed temporary fix for bug #3401422

- added functiality for "cget" to call parameter-methods (e.g. "... cget -class"). The method cget calls either "/slot/ get ..." (when slot=... is provided in the parameter spec) or it assumes that the method without argument returns the value - added "::nsf::object::property /obj/ volatile" to query whether a object is volatile or not - "/obj/ cget -volatile" returns now the volatial state of the object - factored out ParameterMethodDispatch() from OConfigureMethod() - extended regression test

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- don't blindly register all object/class methods for XOTcl

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Property Reform Part 2: better handling of per-object properties nsf.c: - changed "/class/ __objectconfigure" to "/obj/ __objectconfigure" to be able to handle per-object properties on classes properly. - renamed "info method parametersyntax" -> "info method syntax" - renamed "/obj|cls/ info method parametersyntax" into "/obj|cls/ info method syntax" - replaced "::nsf::methods::class::info::objectparameter" by "::nsf::methods::object::info::objectparameter" - new command "::nsf::parameter::specs ?-configure? ?-noposargs? slotobjs": convert provided slotobjs into a list of parameter specs - new command "::nsf::parameter::get list|name|syntax parameterspec": convert parameter spec into syntax form, or retrieve pieces of information from it (can be extended in the future) - added more or less generic list handling functions TclObjListFreeList(), TclObjListNewElement() and TclObjListAdd() used by "::nsf::parameter::specs" - replaced "::nsf::method::property /obj/ -per-object /name/ slotcontainer ?value?" by "::nsf::object::property /obj/ slotcontainer ?value?" - added "::nsf::object::property /obj/ hasperobjectslots ?value?"

nx.tcl:

- new info methods

* "/obj/ info lookup parameter definitions"

* "/obj/ info lookup parameter names"

* "/obj/ info lookup parameter list"

* "/obj/ info lookup parameter syntax"

- changed "/cls/ info parameter definition ?name?"

into "/cls/ info parameter definitions ?name?"

since ir returns a list. Still, "list" or "syntax" won't

be plural

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Property reform part 1:

- disallow protection modifiers for "properties" and

add new flag "-accessor" to "property" and "variable"

This changes definitions like

Class create C {

:property {a a1}

:public property {b b1}

:protected property {c c1}

:private property {d d1}

}

to

Class create C {

:property {a a1}

:property -accessor public {b b1}

:property -accessor protected {c c1}

:property -accessor private {d d1}

}

since "properties" are always public accessible

over the "configure" and "cget" interface, but the

accessors methods might not be public. The value of

the accessor might be also "none" (specifying explicitely

that no accessor is wanted) or "", which means: use the default.

Same holds for "variable"

- disallow parameter option "incremental" and change it to a flag

of the property or variable. The motivation for this is due to

the fact, that "incremental" is a property of the accessor, and

not of the value.

old:

Class create C {

:property foo:int,incremental

:variable bar:int,incremental

}

new:

Class create C {

:property -incremental foo:int

:variable -incremental bar:int

}

- disallow "public class property" and friends since these are not needed

- removed parameter property "noaccessor"

- removed "nx::configure defaultPropertyCallProtection" and

method hook "__default_property_call_protection"

- introduced "nx::configure defaultAccessor" and

method hook "__default_accessor"

- for the time being, "defaultAccessor" is "public" for NX and XOTcl,

will be changed to "none" in NX

- extended regression test (new file properties.test)

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nsf.c: - fixed parmeter syntax for required nonpos args - deactivate deletion of methods via nsf::object::delete during shutdown to avoid missing slot forwarders called from destructors

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xotcl2.tcl: - made destructor of Connection more robust such it does not depend on accessor methods.

- updated 34 copyright notices

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nx.tcl: - rename the following internally called methods (not for XOTcl). alloc -> __alloc dealloc -> __dealloc objectparameter -> __objectparameter recrate -> __recreate - from these methods, only __objectparameter is defined per default, the others are defined on demand

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- rename nx::Object.configure to nx::Object.__configure to free method name "configure" for an e.g. tk-like configure

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- fix frame scoping for myvar/myproc

- define method "proc" of ::xotcl::Attribute in terms of ::xotcl::Object proc

- Addressed a number of issues in the NX slot infrastructure (which revealed themselves when running Mark's BusinessActivities implementation in XOTcl2 mode): - generic/nsf.c: Initcmd blocks (as set for registering per-class slot traces) were subjected to argument checks causing unexpected behavior (e.g., attempts of unboxing initcmds as Tcl lists or of checking initcmds against value types). This was fixed by exempting NSF_ARG_INITCMD params from argument checking in ArgumentCheck() explicitly. - library/nx/nx.tcl: For per-class parameters, the use of valuechangedcmd effectively overruled the default value specified (simply because the generated initcmd holding the trace statements took the place of the default value). While for defaultcmd and for valuecmd the parallel use of default is forbidden, the valuechangedcmd semantics allow for specifying a default, in principle. This was fixed by providing a default-setting statement in the initcmd. - tests/parameters.test: Added tests to cover the above (and beyond). - library/xotcl/library/xotcl2.tcl: Extended the backwards compatibility of the hybrid XOTcl2/NX slots infrastructure to the XOTcl 1 interface: This includes support for inline -proc statements and instvar. This compat level corresponds to the slot interface as documented (by examples) in the XOTcl language ref and the manual. - library/xotcl/tests/slottest.xotcl: Added tests for the above compat enhancements.

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- change "#!/bin/env" into "#!/usr/bin/env"

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- increase backward compatibility for ::xotcl::Attribute by defining the public methods "set", "exists" and "istype"

- library/xotcl/library/xotcl2.tcl: Provided a virtual slot "multivalued" to establish backward compatibility with XOTcl1; also, allow old-style class creation based on unknown for ::xotcl::Attribute - library/xotcl/tests/slottest.xotcl: Added some tests on backward compatibility for XOTcl slots

- don't allow object creation to overwrite non-object cmds (e.g. procs)

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- Bump version number of head to 2.0b4

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- fixed potential crash from method caching, when permissions on cmds are changed and become e.g. unresolvable - removed flag allowmethoddispatch, since behavior can be achived via private flag. - extended regression test

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- deacitivate for the time being allowmethoddispatch (make it behave always like true) - added instead new flag "perobjectdispatch" to make behavior of ensembleobjects configurable. - The behavior for keepcallerself is currently only activated for the method-interface for object dispatch, since otherwise the following would be dangerous, since "o2 foo" would destroy o2 nx::Object create o1 nsf::object::property o1 keepcallerself true nx::Object create o2 { ::public method foo {} {o1 destroy} } o2 foo

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