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authordkf <donal.k.fellows@manchester.ac.uk>2018-01-09 00:10:22 (GMT)
committerdkf <donal.k.fellows@manchester.ac.uk>2018-01-09 00:10:22 (GMT)
commit56d7c6335f5f725c5d97955e709a8d0e140e68fb (patch)
treefea7317a88e617040e188f534e8620bb7e6d817c /generic/tclOODefineCmds.c
parent4ef30fb4ca2f32be97129c539a00b8805830918d (diff)
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Some refactoring and tidying up of comments.
Diffstat (limited to 'generic/tclOODefineCmds.c')
-rw-r--r--generic/tclOODefineCmds.c95
1 files changed, 82 insertions, 13 deletions
diff --git a/generic/tclOODefineCmds.c b/generic/tclOODefineCmds.c
index 7f3ea18..c08b350 100644
--- a/generic/tclOODefineCmds.c
+++ b/generic/tclOODefineCmds.c
@@ -123,6 +123,7 @@ static const struct DeclaredSlot slots[] = {
* ----------------------------------------------------------------------
*
* BumpGlobalEpoch --
+ *
* Utility that ensures that call chains that are invalid will get thrown
* away at an appropriate time. Note that exactly which epoch gets
* advanced will depend on exactly what the class is tangled up in; in
@@ -167,6 +168,7 @@ BumpGlobalEpoch(
* ----------------------------------------------------------------------
*
* RecomputeClassCacheFlag --
+ *
* Determine whether the object is prototypical of its class, and hence
* able to use the class's method chain cache.
*
@@ -189,6 +191,7 @@ RecomputeClassCacheFlag(
* ----------------------------------------------------------------------
*
* TclOOObjectSetFilters --
+ *
* Install a list of filter method names into an object.
*
* ----------------------------------------------------------------------
@@ -247,6 +250,7 @@ TclOOObjectSetFilters(
* ----------------------------------------------------------------------
*
* TclOOClassSetFilters --
+ *
* Install a list of filter method names into a class.
*
* ----------------------------------------------------------------------
@@ -309,6 +313,7 @@ TclOOClassSetFilters(
* ----------------------------------------------------------------------
*
* TclOOObjectSetMixins --
+ *
* Install a list of mixin classes into an object.
*
* ----------------------------------------------------------------------
@@ -350,9 +355,12 @@ TclOOObjectSetMixins(
FOREACH(mixinPtr, oPtr->mixins) {
if (mixinPtr != oPtr->selfCls) {
TclOOAddToInstances(oPtr, mixinPtr);
- /* Corresponding TclOODecrRefCount() is in the caller of this
+
+ /*
+ * Corresponding TclOODecrRefCount() is in the caller of this
* function.
*/
+
TclOODecrRefCount(mixinPtr->thisPtr);
}
}
@@ -364,6 +372,7 @@ TclOOObjectSetMixins(
* ----------------------------------------------------------------------
*
* TclOOClassSetMixins --
+ *
* Install a list of mixin classes into a class.
*
* ----------------------------------------------------------------------
@@ -401,9 +410,12 @@ TclOOClassSetMixins(
memcpy(classPtr->mixins.list, mixins, sizeof(Class *) * numMixins);
FOREACH(mixinPtr, classPtr->mixins) {
TclOOAddToMixinSubs(classPtr, mixinPtr);
- /* Corresponding TclOODecrRefCount() is in the caller of this
- * function
+
+ /*
+ * Corresponding TclOODecrRefCount() is in the caller of this
+ * function.
*/
+
TclOODecrRefCount(mixinPtr->thisPtr);
}
}
@@ -414,6 +426,7 @@ TclOOClassSetMixins(
* ----------------------------------------------------------------------
*
* RenameDeleteMethod --
+ *
* Core of the code to rename and delete methods.
*
* ----------------------------------------------------------------------
@@ -503,6 +516,7 @@ RenameDeleteMethod(
* ----------------------------------------------------------------------
*
* TclOOUnknownDefinition --
+ *
* Handles what happens when an unknown command is encountered during the
* processing of a definition script. Works by finding a command in the
* operating definition namespace that the requested command is a unique
@@ -581,6 +595,7 @@ TclOOUnknownDefinition(
* ----------------------------------------------------------------------
*
* FindCommand --
+ *
* Specialized version of Tcl_FindCommand that handles command prefixes
* and disallows namespace magic.
*
@@ -641,6 +656,7 @@ FindCommand(
* ----------------------------------------------------------------------
*
* InitDefineContext --
+ *
* Does the magic incantations necessary to push the special stack frame
* used when processing object definitions. It is up to the caller to
* dispose of the frame (with TclPopStackFrame) when finished.
@@ -666,7 +682,9 @@ InitDefineContext(
return TCL_ERROR;
}
- /* framePtrPtr is needed to satisfy GCC 3.3's strict aliasing rules */
+ /*
+ * framePtrPtr is needed to satisfy GCC 3.3's strict aliasing rules.
+ */
(void) TclPushStackFrame(interp, (Tcl_CallFrame **) framePtrPtr,
namespacePtr, FRAME_IS_OO_DEFINE);
@@ -681,6 +699,7 @@ InitDefineContext(
* ----------------------------------------------------------------------
*
* TclOOGetDefineCmdContext --
+ *
* Extracts the magic token from the current stack frame, or returns NULL
* (and leaves an error message) otherwise.
*
@@ -717,6 +736,7 @@ TclOOGetDefineCmdContext(
* ----------------------------------------------------------------------
*
* GetClassInOuterContext --
+ *
* Wrapper round Tcl_GetObjectFromObj to perform the lookup in the
* context that called oo::define (or equivalent). Note that this may
* have to go up multiple levels to get the level that we started doing
@@ -759,6 +779,7 @@ GetClassInOuterContext(
* ----------------------------------------------------------------------
*
* GenerateErrorInfo --
+ *
* Factored out code to generate part of the error trace messages.
*
* ----------------------------------------------------------------------
@@ -797,6 +818,7 @@ GenerateErrorInfo(
* ----------------------------------------------------------------------
*
* MagicDefinitionInvoke --
+ *
* Part of the implementation of the "oo::define" and "oo::objdefine"
* commands that is used to implement the more-than-one-argument case,
* applying ensemble-like tricks with dispatch so that error messages are
@@ -860,6 +882,7 @@ MagicDefinitionInvoke(
* ----------------------------------------------------------------------
*
* TclOODefineObjCmd --
+ *
* Implementation of the "oo::define" command. Works by effectively doing
* the same as 'namespace eval', but with extra magic applied so that the
* object to be modified is known to the commands in the target
@@ -934,6 +957,7 @@ TclOODefineObjCmd(
* ----------------------------------------------------------------------
*
* TclOOObjDefObjCmd --
+ *
* Implementation of the "oo::objdefine" command. Works by effectively
* doing the same as 'namespace eval', but with extra magic applied so
* that the object to be modified is known to the commands in the target
@@ -1001,6 +1025,7 @@ TclOOObjDefObjCmd(
* ----------------------------------------------------------------------
*
* TclOODefineSelfObjCmd --
+ *
* Implementation of the "self" subcommand of the "oo::define" command.
* Works by effectively doing the same as 'namespace eval', but with
* extra magic applied so that the object to be modified is known to the
@@ -1068,6 +1093,7 @@ TclOODefineSelfObjCmd(
* ----------------------------------------------------------------------
*
* TclOODefineObjSelfObjCmd --
+ *
* Implementation of the "self" subcommand of the "oo::objdefine"
* command.
*
@@ -1101,6 +1127,7 @@ TclOODefineObjSelfObjCmd(
* ----------------------------------------------------------------------
*
* TclOODefineClassObjCmd --
+ *
* Implementation of the "class" subcommand of the "oo::objdefine"
* command.
*
@@ -1175,7 +1202,10 @@ TclOODefineClassObjCmd(
if (oPtr->selfCls != clsPtr) {
TclOORemoveFromInstances(oPtr, oPtr->selfCls);
- /* Reference count already incremented 3 lines up. */
+ /*
+ * Reference count already incremented a few lines up.
+ */
+
oPtr->selfCls = clsPtr;
TclOOAddToInstances(oPtr, oPtr->selfCls);
@@ -1192,6 +1222,7 @@ TclOODefineClassObjCmd(
* ----------------------------------------------------------------------
*
* TclOODefineConstructorObjCmd --
+ *
* Implementation of the "constructor" subcommand of the "oo::define"
* command.
*
@@ -1260,6 +1291,7 @@ TclOODefineConstructorObjCmd(
* ----------------------------------------------------------------------
*
* TclOODefineDeleteMethodObjCmd --
+ *
* Implementation of the "deletemethod" subcommand of the "oo::define"
* and "oo::objdefine" commands.
*
@@ -1316,6 +1348,7 @@ TclOODefineDeleteMethodObjCmd(
* ----------------------------------------------------------------------
*
* TclOODefineDestructorObjCmd --
+ *
* Implementation of the "destructor" subcommand of the "oo::define"
* command.
*
@@ -1380,6 +1413,7 @@ TclOODefineDestructorObjCmd(
* ----------------------------------------------------------------------
*
* TclOODefineExportObjCmd --
+ *
* Implementation of the "export" subcommand of the "oo::define" and
* "oo::objdefine" commands.
*
@@ -1474,6 +1508,7 @@ TclOODefineExportObjCmd(
* ----------------------------------------------------------------------
*
* TclOODefineForwardObjCmd --
+ *
* Implementation of the "forward" subcommand of the "oo::define" and
* "oo::objdefine" commands.
*
@@ -1534,6 +1569,7 @@ TclOODefineForwardObjCmd(
* ----------------------------------------------------------------------
*
* TclOODefineMethodObjCmd --
+ *
* Implementation of the "method" subcommand of the "oo::define" and
* "oo::objdefine" commands.
*
@@ -1591,6 +1627,7 @@ TclOODefineMethodObjCmd(
* ----------------------------------------------------------------------
*
* TclOODefineMixinObjCmd --
+ *
* Implementation of the "mixin" subcommand of the "oo::define" and
* "oo::objdefine" commands.
*
@@ -1634,9 +1671,12 @@ TclOODefineMixinObjCmd(
goto freeAndError;
}
mixins[i-1] = clsPtr;
- /* Corresponding TclOODecrRefCount() is in TclOOObjectSetMixins,
+
+ /*
+ * Corresponding TclOODecrRefCount() is in TclOOObjectSetMixins,
* TclOOClassSetMixinsk, or just below if this function fails.
*/
+
AddRef(mixins[i-1]->thisPtr);
}
@@ -1661,6 +1701,7 @@ TclOODefineMixinObjCmd(
* ----------------------------------------------------------------------
*
* TclOODefineRenameMethodObjCmd --
+ *
* Implementation of the "renamemethod" subcommand of the "oo::define"
* and "oo::objdefine" commands.
*
@@ -1717,6 +1758,7 @@ TclOODefineRenameMethodObjCmd(
* ----------------------------------------------------------------------
*
* TclOODefineUnexportObjCmd --
+ *
* Implementation of the "unexport" subcommand of the "oo::define" and
* "oo::objdefine" commands.
*
@@ -1811,6 +1853,7 @@ TclOODefineUnexportObjCmd(
* ----------------------------------------------------------------------
*
* Tcl_ClassSetConstructor, Tcl_ClassSetDestructor --
+ *
* How to install a constructor or destructor into a class; API to call
* from C.
*
@@ -1865,6 +1908,7 @@ Tcl_ClassSetDestructor(
* ----------------------------------------------------------------------
*
* TclOODefineSlots --
+ *
* Create the "::oo::Slot" class and its standard instances. Class
* definition is empty at the stage (added by scripting).
*
@@ -1908,6 +1952,7 @@ TclOODefineSlots(
* ----------------------------------------------------------------------
*
* ClassFilterGet, ClassFilterSet --
+ *
* Implementation of the "filter" slot accessors of the "oo::define"
* command.
*
@@ -1987,6 +2032,7 @@ ClassFilterSet(
* ----------------------------------------------------------------------
*
* ClassMixinGet, ClassMixinSet --
+ *
* Implementation of the "mixin" slot accessors of the "oo::define"
* command.
*
@@ -2077,9 +2123,12 @@ ClassMixinSet(
Tcl_SetErrorCode(interp, "TCL", "OO", "SELF_MIXIN", NULL);
goto freeAndError;
}
- /* Corresponding TclOODecrRefCount() is in TclOOClassSetMixins, or just
- * below if this function fails
+
+ /*
+ * Corresponding TclOODecrRefCount() is in TclOOClassSetMixins, or
+ * just below if this function fails.
*/
+
AddRef(mixins[i]->thisPtr);
}
@@ -2099,6 +2148,7 @@ ClassMixinSet(
* ----------------------------------------------------------------------
*
* ClassSuperGet, ClassSuperSet --
+ *
* Implementation of the "superclass" slot accessors of the "oo::define"
* command.
*
@@ -2199,7 +2249,11 @@ ClassSuperSet(
superclasses[0] = oPtr->fPtr->objectCls;
}
superc = 1;
- /* Corresponding TclOODecrRefCount is near the end of this function */
+
+ /*
+ * Corresponding TclOODecrRefCount is near the end of this function.
+ */
+
AddRef(superclasses[0]->thisPtr);
} else {
for (i=0 ; i<superc ; i++) {
@@ -2229,8 +2283,12 @@ ClassSuperSet(
ckfree(superclasses);
return TCL_ERROR;
}
- /* Corresponding TclOODecrRefCount() is near the end of this
- * function */
+
+ /*
+ * Corresponding TclOODecrRefCount() is near the end of this
+ * function.
+ */
+
AddRef(superclasses[i]->thisPtr);
}
}
@@ -2252,7 +2310,11 @@ ClassSuperSet(
oPtr->classPtr->superclasses.num = superc;
FOREACH(superPtr, oPtr->classPtr->superclasses) {
TclOOAddToSubclasses(oPtr->classPtr, superPtr);
- /* To account for the AddRef() earlier in this function */
+
+ /*
+ * To account for the AddRef() earlier in this function.
+ */
+
TclOODecrRefCount(superPtr->thisPtr);
}
BumpGlobalEpoch(interp, oPtr->classPtr);
@@ -2264,6 +2326,7 @@ ClassSuperSet(
* ----------------------------------------------------------------------
*
* ClassVarsGet, ClassVarsSet --
+ *
* Implementation of the "variable" slot accessors of the "oo::define"
* command.
*
@@ -2406,6 +2469,7 @@ ClassVarsSet(
* ----------------------------------------------------------------------
*
* ObjectFilterGet, ObjectFilterSet --
+ *
* Implementation of the "filter" slot accessors of the "oo::objdefine"
* command.
*
@@ -2473,6 +2537,7 @@ ObjFilterSet(
* ----------------------------------------------------------------------
*
* ObjectMixinGet, ObjectMixinSet --
+ *
* Implementation of the "mixin" slot accessors of the "oo::objdefine"
* command.
*
@@ -2550,9 +2615,12 @@ ObjMixinSet(
TclStackFree(interp, mixins);
return TCL_ERROR;
}
- /* Corresponding TclOODecrRefCount() is in TclOOObjectSetMixins() or
+
+ /*
+ * Corresponding TclOODecrRefCount() is in TclOOObjectSetMixins() or
* just above if this function fails.
*/
+
AddRef(mixins[i]->thisPtr);
}
@@ -2565,6 +2633,7 @@ ObjMixinSet(
* ----------------------------------------------------------------------
*
* ObjectVarsGet, ObjectVarsSet --
+ *
* Implementation of the "variable" slot accessors of the "oo::objdefine"
* command.
*