disposition.test

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- make sure to use "XOTcl 2.0" instead of just XOTcl in "package req" to avoid confusions due to beta state - remove more obsolete and untested files

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tests: - added "package prefer latest" to avoid confusions of alpha and beta releases with install versions

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- nsf.c - added experimental parameter option noleadingdash - additionalal regression test file method-parameter.test - provide selective error messages for unknown nonpos args

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- reduce verbosity

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- generic/nsfAPI.h: Renamed the [::nsf::current next] subcommand to [::nsf::current nextmethod] - library/xotcl/library/xotcl2.tcl: Accordingly, the xotcl::self emulation maps [self next] to [current nextmethod] - tests/disposition.test, tests/methods.test, tests/submethods.test, tests/tcloo.test: Changed the few occurrences of [current next] to [current nextmethod] - tests/introspection.test: Added some basic tests on the expected behaviour of [::nsf::current nextmethod]

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- nsf.c: * integrated "-local" and fully qualified handling with ObjectDispatch to ensure proper behavior of mixins/next etc. * added "/obj/ -local ..." similar to "/obj/ -system ..." * added "nsf::object::disapatch /obj/ -local ..." similar to "/obj/ -local ..." * extended regression test (next from -local, fully qualified names, private methods, "...dispatch -local")

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- nx.tcl * renamed "attribute" to "property" * renamed "defaultAttributeCallProtection" to "defaultPropertyCallProtection" * renamed "nx::Attribute" to ""nx::VariableSlot" * renamed "BootStrapAttributeSlot" to "BootStrapVariableSlot" * renamed "createBootstrapAttributeSlots" to "createBootstrapVariableSlots" * removed method attributes * implemented old attributes definition in xotcl2 as method "parameter"

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-nsf.c: * move to greedy assert to an inner scope ("info method ...") * allow testwise "switch" as object parameter (when it is used, accessors are deactivated for this attribute) * extended regression test

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- tests/disposition.test: Corrected a temporarily silenced test, the dispo test suite now runs completely

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- fix typos

- disposition.test: replace "exit" by an "if 0 {...}" for the time being

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- generic/nsf.c / NextSearchAndInvoke(): Prior to this commit, next calls from within submethod leaves resulted in the interp's unknown flag to be set. While for dispatches without filter indirection this remains hidden and unnoticed, registered filters triggered an unwanted unknown dispatch in such scenarios. Consequently, such leaf next's in submethods behaved differently from the method equivalents. The patch identifies such leaf-next dispatches by watching out for a characteristic callstack structure. - tests/submethods.test: Add a characteristic test for the above patch. - tests/disposition.test: Some cleanup ...

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- nx.tcl: * added support for "variable" on the class-level * added flag "noconfig" to object parameter options * parameters with "noconfig" are omitted in "info parameter syntax" and "info parameter list" * used switches for all configurable boolean options for "variable" and "attribute" * regularized the interface of "variable" and "attribute" * extended regression test

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- generic/nsf.c: Fixed [current callingmethod] for submethods (i.e., reporting submethods as calling methods, including their methodpath). Added tests covering the fix (see tests/submethods.test). - generic/nsfStack.c (CallStackMethodPath): Re-arranged the traversal slightly, to escape non-ensemble frames (eval CFRAMEs) as parts of the method path. Added test (see tests/submethods.test). - library/nx/nx.tcl: Corrected the impl of Ensemble->defaultmethod() (e.g., used self instead of current) - tests/disposition.test: Fixed test cases turned out to be false positives. Before the fixes, [current methodpath] gave non-empty results for simple object aliases.

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- first draft of separation of attribute -> variable + accessor

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- TODO: Added an entry concerning callstack introspection (as discussed today) - generic/nsf.c: Some minor renaming in NsfOConfigureMethod(); made sure that intermediate frames resulting from forward-parameter dispatches are equally marked INACTIVE. - tests/disposition.test: Added tests covering uplevel/upvar support under parameter/disposition dispatches (i.e., uplevel and upvar calls from within parameter-dispatched methods); the tests also cover XOTcl's residualargs dispatches.

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Squashed commit of the following:

commit 901efa4cb4e1bbd55a8c47ebb79f4c7b4b397668

Author: ssoberni <stefan.sobernig@wu-wien.ac.at>

Date: Wed Jul 6 17:51:38 2011 +0200

- generic/nsf.c: Provide the [current class] context to submethods

- tests/disposition.test: Added some tests on the interaction of

INACTIVE frames (mixin, filter) and submethods

- tests/submethods.test: Testing [current class] context for submethods

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- generic/nsfStack.c: Revised my former patch for traversing callstacks under ensemle dispatches. We fixed the traversal-ending gateway expression; and added transparency for INACTIVE frames when assembling the method path. Added further tests, remain to be completed ...

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- Reduced verbosity in nsf.c, reactivated a test case

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- nsfStack.c / CallStackMethodPath(): Providing a fix for reporting method paths correctly when dispatching to ensembles from alias parameters. Prior to that fix, the intermediate (and inactive) CMETHOD frame wrapping configure() calls caused [current methodpath]s to report empty string elements. Added some test cases. - nsf.c / ObjectDispatch(), DispatchUnknownMethod(): When testing objects as alias parameter targets, I found cases when the default (C-level) unknown handler was invoked upon. The result was an unknown message which reported the delegator object as "unknown" method! This was due to injecting the delegator object into the argument vector at position 0, subsequently used by the C-level unknown handler. First, I tried to make the C-level unknown handler aware of the ensemble call context (by funneling through the CSC and frame flags) but this turned out to be complicated to achieve this simple task. As an alternative, I suggest the following patch: The first argument in unknown calls is treated as a list, and dependening on the call context (ensemble vs. non-ensemble) contains all the necessary call data. For ensemble methods, it is the delegator object, the entire method path (as returned by [current methodpath]), and the actual unknown selector. The default C-level handler, treating the call info as list, resorts to reporting the last element of the list which is always the unknown selector. Custom (ensemble-level, application-level) unknown handler can wrap and further process the information as necessary. To demonstrate the usefulness, I rewrote EnsembleObject->unknown() accordingly. I checked for Tcl_Obj leaks. - Added some tests on objects as targets of alias object parameter. To be continued.

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- nsf.c: * report only fully initialized slot objects via "info slots" to avoid chicken-egg problem during method "objectparameter" * added flag -array to ::nsf::var::exists to check, whether the variable is an array (to avoid "o eval {array exists ...}" in the serializer. * provided flags to VarExists instead of multiple args * don't add new pointer entries in Nsf_PointerTypeLookup()

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- generic/nsf.c: Shuffled around the word order and adding some quoting in the error message for enforcing multivalued, non-empty list multiplicities; to differentiate between parameter name and value literals etc.

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- tests/disposition.test: Added tests covering "dispos vs. return checker" and "dispos vs. uplevel/upvar"

- nsf.c: no good reason to disallow user defined types for for alias, forward or initcmd

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- generic/nsf.c: Aligned error messages for parameter options; Re-arranged control flow in ParamOptionParse() slightly, do allow for [string is] types being used as options of disposition types. Refactored code slightly (e.g., removed unneeded, intermediary Tcl_Objs). - tests/disposition.test: Extended test suite, in particular, for covering multiplicity types as parameter options of disposition types. - tests/parameters.test: Adjusting for rephrased error messages.

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- nsf.c: * Don't output non-consuming procs (which are always called) via parametersyntax (shows, what a user can input) * additional command ::nsf::object::initialized to check whether an object is already initialized * new function DispatchInitMethod() similar to DispatchDefaultMethod() * let residualargs call init directly instead of doing it the inidrect way * provided ability to call init with object parameters at arbitrary times * switch from Tcl_ObjCmdProc style interface (ClientData first) to a C stype interface for DispatchDefaultMethod(), DispatchUnknownMethod() * bring cmd definitions for nsf::object in right order - extended regression test

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- nsf.c: * added refcounting to parameter definitions (needed, when aliased object parameter redefined the actual objectparameters) * removed hardcoded call to remaining args * switched implentation of xotcl2 to use object parameter with parameter option "args" * removed residualargs from object system definition * extended regression test

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- nsf.c: * improved source code documentation * added parameter option "args" in order to get eventually rid of hard-wired residual args. * improved a few error messages * fixed object parameters consisting only of plain parameters (previously, no parameters were returned in this case, e.g. for method parameters; but object parameter code depends on it) - extended and updated regression tests

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- minor editing

- regression tests: * added disposition.test * extended regression tests

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    ./disposition.test
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