int
TclOOCopyObjectCmd(
ClientData clientData,
Tcl_Interp *interp,
int objc,
Tcl_Obj *const *objv)
{
Tcl_Object oPtr, o2Ptr;
if (objc < 2 || objc > 3) {
Tcl_WrongNumArgs(interp, 1, objv, "sourceName ?targetName?");
return TCL_ERROR;
}
oPtr = Tcl_GetObjectFromObj(interp, objv[1]);
if (oPtr == NULL) {
return TCL_ERROR;
}
/*
* Create a cloned object of the correct class. Note that constructors are
* not called. Also note that we must resolve the object name ourselves
* because we do not want to create the object in the current namespace,
* but rather in the context of the namespace of the caller of the overall
* [oo::define] command.
*/
if (objc == 2) {
o2Ptr = Tcl_CopyObjectInstance(interp, oPtr, NULL, NULL);
} else {
const char *name;
Tcl_DString buffer;
name = TclGetString(objv[2]);
Tcl_DStringInit(&buffer);
if (name[0]!=':' || name[1]!=':') {
Interp *iPtr = (Interp *) interp;
if (iPtr->varFramePtr != NULL) {
Tcl_DStringAppend(&buffer,
iPtr->varFramePtr->nsPtr->fullName, -1);
}
TclDStringAppendLiteral(&buffer, "::");
Tcl_DStringAppend(&buffer, name, -1);
name = Tcl_DStringValue(&buffer);
}
o2Ptr = Tcl_CopyObjectInstance(interp, oPtr, name, NULL);
Tcl_DStringFree(&buffer);
}
if (o2Ptr == NULL) {
return TCL_ERROR;
}
/*
* Return the name of the cloned object.
*/
Tcl_SetObjResult(interp, TclOOObjectName(interp, (Object *) o2Ptr));
return TCL_OK;
}
int
TclOONextToObjCmd(
ClientData clientData,
Tcl_Interp *interp,
int objc,
Tcl_Obj *const *objv)
{
Interp *iPtr = (Interp *) interp;
CallFrame *framePtr = iPtr->varFramePtr;
Class *classPtr;
CallContext *contextPtr;
int i;
Tcl_Object object;
const char *methodType;
/*
* Start with sanity checks on the calling context to make sure that we
* are invoked from a suitable method context. If so, we can safely
* retrieve the handle to the object call context.
*/
if (framePtr == NULL || !(framePtr->isProcCallFrame & FRAME_IS_METHOD)) {
Tcl_SetObjResult(interp, Tcl_ObjPrintf(
"%s may only be called from inside a method",
TclGetString(objv[0])));
Tcl_SetErrorCode(interp, "TCL", "OO", "CONTEXT_REQUIRED", NULL);
return TCL_ERROR;
}
contextPtr = framePtr->clientData;
/*
* Sanity check the arguments; we need the first one to refer to a class.
*/
if (objc < 2) {
Tcl_WrongNumArgs(interp, 1, objv, "class ?arg...?");
return TCL_ERROR;
}
object = Tcl_GetObjectFromObj(interp, objv[1]);
if (object == NULL) {
return TCL_ERROR;
}
classPtr = ((Object *)object)->classPtr;
if (classPtr == NULL) {
Tcl_SetObjResult(interp, Tcl_ObjPrintf(
"\"%s\" is not a class", TclGetString(objv[1])));
Tcl_SetErrorCode(interp, "TCL", "OO", "CLASS_REQUIRED", NULL);
return TCL_ERROR;
}
/*
* Search for an implementation of a method associated with the current
* call on the call chain past the point where we currently are. Do not
* allow jumping backwards!
*/
for (i=contextPtr->index+1 ; i<contextPtr->callPtr->numChain ; i++) {
struct MInvoke *miPtr = contextPtr->callPtr->chain + i;
if (!miPtr->isFilter && miPtr->mPtr->declaringClassPtr == classPtr) {
/*
* Invoke the (advanced) method call context in the caller
* context. Note that this is like [uplevel 1] and not [eval].
*/
TclNRAddCallback(interp, NextRestoreFrame, framePtr,
contextPtr, INT2PTR(contextPtr->index), NULL);
contextPtr->index = i-1;
iPtr->varFramePtr = framePtr->callerVarPtr;
return TclNRObjectContextInvokeNext(interp,
(Tcl_ObjectContext) contextPtr, objc, objv, 2);
}
}
/*
* Generate an appropriate error message, depending on whether the value
* is on the chain but unreachable, or not on the chain at all.
*/
if (contextPtr->callPtr->flags & CONSTRUCTOR) {
methodType = "constructor";
} else if (contextPtr->callPtr->flags & DESTRUCTOR) {
methodType = "destructor";
} else {
methodType = "method";
}
for (i=contextPtr->index ; i>=0 ; i--) {
struct MInvoke *miPtr = contextPtr->callPtr->chain + i;
if (!miPtr->isFilter && miPtr->mPtr->declaringClassPtr == classPtr) {
Tcl_SetObjResult(interp, Tcl_ObjPrintf(
"%s implementation by \"%s\" not reachable from here",
methodType, TclGetString(objv[1])));
Tcl_SetErrorCode(interp, "TCL", "OO", "CLASS_NOT_REACHABLE",
NULL);
return TCL_ERROR;
}
}
Tcl_SetObjResult(interp, Tcl_ObjPrintf(
"%s has no non-filter implementation by \"%s\"",
methodType, TclGetString(objv[1])));
Tcl_SetErrorCode(interp, "TCL", "OO", "CLASS_NOT_THERE", NULL);
return TCL_ERROR;
}
static int
Initialize (
Tcl_Interp *interp)
{
Tcl_Namespace *nsPtr;
Tcl_Namespace *itclNs;
Tcl_HashEntry *hPtr;
Tcl_Obj *objPtr;
ItclObjectInfo *infoPtr;
const char * ret;
char *res_option;
int opt;
int isNew;
if (Tcl_InitStubs(interp, "8.6", 0) == NULL) {
return TCL_ERROR;
}
ret = TclOOInitializeStubs(interp, "1.0");
if (ret == NULL) {
return TCL_ERROR;
}
nsPtr = Tcl_CreateNamespace(interp, ITCL_NAMESPACE, NULL, NULL);
if (nsPtr == NULL) {
Tcl_Panic("Itcl: cannot create namespace: \"%s\" \n", ITCL_NAMESPACE);
}
nsPtr = Tcl_CreateNamespace(interp, ITCL_NAMESPACE"::methodset",
NULL, NULL);
if (nsPtr == NULL) {
Tcl_Panic("Itcl: cannot create namespace: \"%s::methodset\" \n",
ITCL_NAMESPACE);
}
nsPtr = Tcl_CreateNamespace(interp, ITCL_NAMESPACE"::internal::dicts",
NULL, NULL);
if (nsPtr == NULL) {
Tcl_Panic("Itcl: cannot create namespace: \"%s::internal::dicts\" \n",
ITCL_NAMESPACE);
}
Tcl_CreateObjCommand(interp, ITCL_NAMESPACE"::finish", ItclFinishCmd,
NULL, NULL);
/* for debugging only !!! */
#ifdef OBJ_REF_COUNT_DEBUG
Tcl_CreateObjCommand(interp,
ITCL_NAMESPACE"::dumprefcountinfo",
ItclDumpRefCountInfo, NULL, NULL);
#endif
#ifdef ITCL_PRESERVE_DEBUG
Tcl_CreateObjCommand(interp,
ITCL_NAMESPACE"::dumppreserveinfo",
ItclDumpPreserveInfo, NULL, NULL);
#endif
/* END for debugging only !!! */
Tcl_CreateObjCommand(interp,
ITCL_NAMESPACE"::methodset::callCCommand",
ItclCallCCommand, NULL, NULL);
Tcl_CreateObjCommand(interp,
ITCL_NAMESPACE"::methodset::objectUnknownCommand",
ItclObjectUnknownCommand, NULL, NULL);
/*
* Create the top-level data structure for tracking objects.
* Store this as "associated data" for easy access, but link
* it to the itcl namespace for ownership.
*/
infoPtr = (ItclObjectInfo*)ckalloc(sizeof(ItclObjectInfo));
memset(infoPtr, 0, sizeof(ItclObjectInfo));
infoPtr->interp = interp;
infoPtr->class_meta_type = (Tcl_ObjectMetadataType *)ckalloc(
sizeof(Tcl_ObjectMetadataType));
infoPtr->class_meta_type->version = TCL_OO_METADATA_VERSION_CURRENT;
infoPtr->class_meta_type->name = "ItclClass";
infoPtr->class_meta_type->deleteProc = ItclDeleteClassMetadata;
infoPtr->class_meta_type->cloneProc = NULL;
infoPtr->object_meta_type = (Tcl_ObjectMetadataType *)ckalloc(
sizeof(Tcl_ObjectMetadataType));
infoPtr->object_meta_type->version = TCL_OO_METADATA_VERSION_CURRENT;
infoPtr->object_meta_type->name = "ItclObject";
infoPtr->object_meta_type->deleteProc = ItclDeleteObjectMetadata;
infoPtr->object_meta_type->cloneProc = NULL;
Tcl_InitHashTable(&infoPtr->objects, TCL_ONE_WORD_KEYS);
Tcl_InitHashTable(&infoPtr->objectCmds, TCL_ONE_WORD_KEYS);
Tcl_InitObjHashTable(&infoPtr->objectNames);
Tcl_InitHashTable(&infoPtr->classes, TCL_ONE_WORD_KEYS);
Tcl_InitObjHashTable(&infoPtr->nameClasses);
Tcl_InitHashTable(&infoPtr->namespaceClasses, TCL_ONE_WORD_KEYS);
Tcl_InitHashTable(&infoPtr->procMethods, TCL_ONE_WORD_KEYS);
Tcl_InitObjHashTable(&infoPtr->instances);
Tcl_InitHashTable(&infoPtr->objectInstances, TCL_ONE_WORD_KEYS);
Tcl_InitObjHashTable(&infoPtr->classTypes);
infoPtr->ensembleInfo = (EnsembleInfo *)ckalloc(sizeof(EnsembleInfo));
memset(infoPtr->ensembleInfo, 0, sizeof(EnsembleInfo));
Tcl_InitHashTable(&infoPtr->ensembleInfo->ensembles, TCL_ONE_WORD_KEYS);
Tcl_InitHashTable(&infoPtr->ensembleInfo->subEnsembles, TCL_ONE_WORD_KEYS);
infoPtr->ensembleInfo->numEnsembles = 0;
infoPtr->protection = ITCL_DEFAULT_PROTECT;
infoPtr->currClassFlags = 0;
infoPtr->buildingWidget = 0;
infoPtr->typeDestructorArgumentPtr = Tcl_NewStringObj("", -1);
Tcl_IncrRefCount(infoPtr->typeDestructorArgumentPtr);
infoPtr->lastIoPtr = NULL;
Tcl_SetVar(interp, ITCL_NAMESPACE"::internal::dicts::classes", "", 0);
Tcl_SetVar(interp, ITCL_NAMESPACE"::internal::dicts::objects", "", 0);
Tcl_SetVar(interp, ITCL_NAMESPACE"::internal::dicts::classOptions", "", 0);
Tcl_SetVar(interp,
ITCL_NAMESPACE"::internal::dicts::classDelegatedOptions", "", 0);
Tcl_SetVar(interp,
ITCL_NAMESPACE"::internal::dicts::classComponents", "", 0);
Tcl_SetVar(interp,
ITCL_NAMESPACE"::internal::dicts::classVariables", "", 0);
Tcl_SetVar(interp,
ITCL_NAMESPACE"::internal::dicts::classFunctions", "", 0);
Tcl_SetVar(interp,
ITCL_NAMESPACE"::internal::dicts::classDelegatedFunctions", "", 0);
hPtr = Tcl_CreateHashEntry(&infoPtr->classTypes,
(char *)Tcl_NewStringObj("class", -1), &isNew);
Tcl_SetHashValue(hPtr, ITCL_CLASS);
hPtr = Tcl_CreateHashEntry(&infoPtr->classTypes,
(char *)Tcl_NewStringObj("type", -1), &isNew);
Tcl_SetHashValue(hPtr, ITCL_TYPE);
hPtr = Tcl_CreateHashEntry(&infoPtr->classTypes,
(char *)Tcl_NewStringObj("widget", -1), &isNew);
Tcl_SetHashValue(hPtr, ITCL_WIDGET);
hPtr = Tcl_CreateHashEntry(&infoPtr->classTypes,
(char *)Tcl_NewStringObj("widgetadaptor", -1), &isNew);
Tcl_SetHashValue(hPtr, ITCL_WIDGETADAPTOR);
hPtr = Tcl_CreateHashEntry(&infoPtr->classTypes,
(char *)Tcl_NewStringObj("extendedclass", -1), &isNew);
Tcl_SetHashValue(hPtr, ITCL_ECLASS);
res_option = getenv("ITCL_USE_OLD_RESOLVERS");
if (res_option == NULL) {
opt = 1;
} else {
opt = atoi(res_option);
}
infoPtr->useOldResolvers = opt;
Itcl_InitStack(&infoPtr->clsStack);
Itcl_InitStack(&infoPtr->contextStack);
Itcl_InitStack(&infoPtr->constructorStack);
Tcl_SetAssocData(interp, ITCL_INTERP_DATA,
(Tcl_InterpDeleteProc*)FreeItclObjectInfo, (ClientData)infoPtr);
Itcl_PreserveData((ClientData)infoPtr);
#ifdef NEW_PROTO_RESOLVER
ItclVarsAndCommandResolveInit(interp);
#endif
/* first create the Itcl base class as root of itcl classes */
if (Tcl_EvalEx(interp, clazzClassScript, -1, 0) != TCL_OK) {
Tcl_Panic("cannot create Itcl root class ::itcl::clazz");
}
objPtr = Tcl_NewStringObj("::itcl::clazz", -1);
infoPtr->clazzObjectPtr = Tcl_GetObjectFromObj(interp, objPtr);
/* work around for SF bug #254 needed because of problem in TclOO 1.0.2 !! */
if (Tcl_PkgPresent(interp, "TclOO", "1.0.2", 1) != NULL) {
Itcl_IncrObjectRefCount(infoPtr->clazzObjectPtr);
}
Tcl_DecrRefCount(objPtr);
if (infoPtr->clazzObjectPtr == NULL) {
Tcl_AppendResult(interp,
"ITCL: cannot get Object for ::itcl::clazz for class \"",
"::itcl::clazz", "\"", NULL);
return TCL_ERROR;
}
infoPtr->clazzClassPtr = Tcl_GetObjectAsClass(infoPtr->clazzObjectPtr);
AddClassUnknowMethod(interp, infoPtr, infoPtr->clazzClassPtr);
/*
* Initialize the ensemble package first, since we need this
* for other parts of [incr Tcl].
*/
if (Itcl_EnsembleInit(interp) != TCL_OK) {
return TCL_ERROR;
}
Itcl_ParseInit(interp, infoPtr);
/*
* Create "itcl::builtin" namespace for commands that
* are automatically built into class definitions.
*/
if (Itcl_BiInit(interp, infoPtr) != TCL_OK) {
return TCL_ERROR;
}
/*
* Export all commands in the "itcl" namespace so that they
* can be imported with something like "namespace import itcl::*"
*/
itclNs = Tcl_FindNamespace(interp, "::itcl", (Tcl_Namespace*)NULL,
TCL_LEAVE_ERR_MSG);
/*
* This was changed from a glob export (itcl::*) to explicit
* command exports, so that the itcl::is command can *not* be
* exported. This is done for concern that the itcl::is command
* imported might be confusing ("is").
*/
if (!itclNs ||
(Tcl_Export(interp, itclNs, "body", /* reset */ 1) != TCL_OK) ||
(Tcl_Export(interp, itclNs, "class", 0) != TCL_OK) ||
(Tcl_Export(interp, itclNs, "code", 0) != TCL_OK) ||
(Tcl_Export(interp, itclNs, "configbody", 0) != TCL_OK) ||
(Tcl_Export(interp, itclNs, "delete", 0) != TCL_OK) ||
(Tcl_Export(interp, itclNs, "delete_helper", 0) != TCL_OK) ||
(Tcl_Export(interp, itclNs, "ensemble", 0) != TCL_OK) ||
(Tcl_Export(interp, itclNs, "filter", 0) != TCL_OK) ||
(Tcl_Export(interp, itclNs, "find", 0) != TCL_OK) ||
(Tcl_Export(interp, itclNs, "forward", 0) != TCL_OK) ||
(Tcl_Export(interp, itclNs, "local", 0) != TCL_OK) ||
(Tcl_Export(interp, itclNs, "mixin", 0) != TCL_OK) ||
(Tcl_Export(interp, itclNs, "scope", 0) != TCL_OK)) {
return TCL_ERROR;
}
Tcl_CreateObjCommand(interp,
ITCL_NAMESPACE"::internal::commands::sethullwindowname",
ItclSetHullWindowName, infoPtr, NULL);
Tcl_CreateObjCommand(interp,
ITCL_NAMESPACE"::internal::commands::checksetitclhull",
ItclCheckSetItclHull, infoPtr, NULL);
/*
* Set up the variables containing version info.
*/
Tcl_SetVar(interp, "::itcl::version", ITCL_VERSION, TCL_NAMESPACE_ONLY);
Tcl_SetVar(interp, "::itcl::patchLevel", ITCL_PATCH_LEVEL,
TCL_NAMESPACE_ONLY);
#ifdef ITCL_DEBUG_C_INTERFACE
RegisterDebugCFunctions(interp);
#endif
/*
* Package is now loaded.
*/
Tcl_PkgProvideEx(interp, "Itcl", ITCL_PATCH_LEVEL, &itclStubs);
return Tcl_PkgProvideEx(interp, "itcl", ITCL_PATCH_LEVEL, &itclStubs);
}