diff options
Diffstat (limited to 'generic/tclNamesp.c')
| -rw-r--r-- | generic/tclNamesp.c | 209 |
1 files changed, 140 insertions, 69 deletions
diff --git a/generic/tclNamesp.c b/generic/tclNamesp.c index aed623a..58a86d9 100644 --- a/generic/tclNamesp.c +++ b/generic/tclNamesp.c @@ -171,7 +171,7 @@ static const EnsembleImplMap defaultNamespaceMap[] = { {"forget", NamespaceForgetCmd, TclCompileBasicMin0ArgCmd, NULL, NULL, 0}, {"import", NamespaceImportCmd, TclCompileBasicMin0ArgCmd, NULL, NULL, 0}, {"inscope", NamespaceInscopeCmd, NULL, NRNamespaceInscopeCmd, NULL, 0}, - {"origin", NamespaceOriginCmd, TclCompileBasic1ArgCmd, NULL, NULL, 0}, + {"origin", NamespaceOriginCmd, TclCompileNamespaceOriginCmd, NULL, NULL, 0}, {"parent", NamespaceParentCmd, TclCompileBasic0Or1ArgCmd, NULL, NULL, 0}, {"path", NamespacePathCmd, TclCompileBasic0Or1ArgCmd, NULL, NULL, 0}, {"qualifiers", NamespaceQualifiersCmd, TclCompileNamespaceQualifiersCmd, NULL, NULL, 0}, @@ -343,7 +343,7 @@ Tcl_PushCallFrame( framePtr->clientData = NULL; framePtr->localCachePtr = NULL; framePtr->tailcallPtr = NULL; - + /* * Push the new call frame onto the interpreter's stack of procedure call * frames making it the current frame. @@ -673,6 +673,10 @@ Tcl_CreateNamespace( Tcl_DString *namePtr, *buffPtr; int newEntry, nameLen; ThreadSpecificData *tsdPtr = TCL_TSD_INIT(&dataKey); + const char *nameStr; + Tcl_DString tmpBuffer; + + Tcl_DStringInit(&tmpBuffer); /* * If there is no active namespace, the interpreter is being initialized. @@ -686,49 +690,78 @@ Tcl_CreateNamespace( parentPtr = NULL; simpleName = ""; - } else if (*name == '\0') { + goto doCreate; + } + + /* + * Ensure that there are no trailing colons as that causes chaos when a + * deleteProc is specified. [Bug d614d63989] + */ + + if (deleteProc != NULL) { + nameStr = name + strlen(name) - 2; + if (nameStr >= name && nameStr[1] == ':' && nameStr[0] == ':') { + Tcl_DStringAppend(&tmpBuffer, name, -1); + while ((nameLen = Tcl_DStringLength(&tmpBuffer)) > 0 + && Tcl_DStringValue(&tmpBuffer)[nameLen-1] == ':') { + Tcl_DStringSetLength(&tmpBuffer, nameLen-1); + } + name = Tcl_DStringValue(&tmpBuffer); + } + } + + /* + * If we've ended up with an empty string now, we're attempting to create + * the global namespace despite the global namespace existing. That's + * naughty! + */ + + if (*name == '\0') { Tcl_SetObjResult(interp, Tcl_NewStringObj("can't create namespace" " \"\": only global namespace can have empty name", -1)); Tcl_SetErrorCode(interp, "TCL", "OPERATION", "NAMESPACE", "CREATEGLOBAL", NULL); + Tcl_DStringFree(&tmpBuffer); return NULL; - } else { - /* - * Find the parent for the new namespace. - */ + } - TclGetNamespaceForQualName(interp, name, NULL, TCL_CREATE_NS_IF_UNKNOWN, - &parentPtr, &dummy1Ptr, &dummy2Ptr, &simpleName); + /* + * Find the parent for the new namespace. + */ - /* - * If the unqualified name at the end is empty, there were trailing - * "::"s after the namespace's name which we ignore. The new namespace - * was already (recursively) created and is pointed to by parentPtr. - */ + TclGetNamespaceForQualName(interp, name, NULL, TCL_CREATE_NS_IF_UNKNOWN, + &parentPtr, &dummy1Ptr, &dummy2Ptr, &simpleName); - if (*simpleName == '\0') { - return (Tcl_Namespace *) parentPtr; - } + /* + * If the unqualified name at the end is empty, there were trailing "::"s + * after the namespace's name which we ignore. The new namespace was + * already (recursively) created and is pointed to by parentPtr. + */ - /* - * Check for a bad namespace name and make sure that the name does not - * already exist in the parent namespace. - */ + if (*simpleName == '\0') { + Tcl_DStringFree(&tmpBuffer); + return (Tcl_Namespace *) parentPtr; + } - if ( + /* + * Check for a bad namespace name and make sure that the name does not + * already exist in the parent namespace. + */ + + if ( #ifndef BREAK_NAMESPACE_COMPAT - Tcl_FindHashEntry(&parentPtr->childTable, simpleName) != NULL + Tcl_FindHashEntry(&parentPtr->childTable, simpleName) != NULL #else - parentPtr->childTablePtr != NULL && - Tcl_FindHashEntry(parentPtr->childTablePtr, simpleName) != NULL + parentPtr->childTablePtr != NULL && + Tcl_FindHashEntry(parentPtr->childTablePtr, simpleName) != NULL #endif - ) { - Tcl_SetObjResult(interp, Tcl_ObjPrintf( - "can't create namespace \"%s\": already exists", name)); - Tcl_SetErrorCode(interp, "TCL", "OPERATION", "NAMESPACE", - "CREATEEXISTING", NULL); - return NULL; - } + ) { + Tcl_SetObjResult(interp, Tcl_ObjPrintf( + "can't create namespace \"%s\": already exists", name)); + Tcl_SetErrorCode(interp, "TCL", "OPERATION", "NAMESPACE", + "CREATEEXISTING", NULL); + Tcl_DStringFree(&tmpBuffer); + return NULL; } /* @@ -736,6 +769,7 @@ Tcl_CreateNamespace( * of namespaces created. */ + doCreate: nsPtr = ckalloc(sizeof(Namespace)); nameLen = strlen(simpleName) + 1; nsPtr->name = ckalloc(nameLen); @@ -831,6 +865,7 @@ Tcl_CreateNamespace( Tcl_DStringFree(&buffer1); Tcl_DStringFree(&buffer2); + Tcl_DStringFree(&tmpBuffer); /* * If compilation of commands originating from the parent NS is @@ -1070,8 +1105,6 @@ TclTeardownNamespace( Interp *iPtr = (Interp *) nsPtr->interp; register Tcl_HashEntry *entryPtr; Tcl_HashSearch search; - Tcl_Namespace *childNsPtr; - Tcl_Command cmd; int i; /* @@ -1086,16 +1119,31 @@ TclTeardownNamespace( /* * Delete all commands in this namespace. Be careful when traversing the * hash table: when each command is deleted, it removes itself from the - * command table. - * - * Don't optimize to Tcl_NextHashEntry() because of traces. + * command table. Because of traces (and the desire to avoid the quadratic + * problems of just using Tcl_FirstHashEntry over and over, [Bug + * f97d4ee020]) we copy to a temporary array and then delete all those + * commands. */ - for (entryPtr = Tcl_FirstHashEntry(&nsPtr->cmdTable, &search); - entryPtr != NULL; - entryPtr = Tcl_FirstHashEntry(&nsPtr->cmdTable, &search)) { - cmd = Tcl_GetHashValue(entryPtr); - Tcl_DeleteCommandFromToken((Tcl_Interp *) iPtr, cmd); + while (nsPtr->cmdTable.numEntries > 0) { + int length = nsPtr->cmdTable.numEntries; + Command **cmds = TclStackAlloc((Tcl_Interp *) iPtr, + sizeof(Command *) * length); + + i = 0; + for (entryPtr = Tcl_FirstHashEntry(&nsPtr->cmdTable, &search); + entryPtr != NULL; + entryPtr = Tcl_NextHashEntry(&search)) { + cmds[i] = Tcl_GetHashValue(entryPtr); + cmds[i]->refCount++; + i++; + } + for (i = 0 ; i < length ; i++) { + Tcl_DeleteCommandFromToken((Tcl_Interp *) iPtr, + (Tcl_Command) cmds[i]); + TclCleanupCommandMacro(cmds[i]); + } + TclStackFree((Tcl_Interp *) iPtr, cmds); } Tcl_DeleteHashTable(&nsPtr->cmdTable); Tcl_InitHashTable(&nsPtr->cmdTable, TCL_STRING_KEYS); @@ -1140,25 +1188,54 @@ TclTeardownNamespace( * * BE CAREFUL: When each child is deleted, it will divorce itself from its * parent. You can't traverse a hash table properly if its elements are - * being deleted. We use only the Tcl_FirstHashEntry function to be safe. + * being deleted. Because of traces (and the desire to avoid the + * quadratic problems of just using Tcl_FirstHashEntry over and over, [Bug + * f97d4ee020]) we copy to a temporary array and then delete all those + * namespaces. * - * Don't optimize to Tcl_NextHashEntry() because of traces. + * Important: leave the hash table itself still live. */ #ifndef BREAK_NAMESPACE_COMPAT - for (entryPtr = Tcl_FirstHashEntry(&nsPtr->childTable, &search); - entryPtr != NULL; - entryPtr = Tcl_FirstHashEntry(&nsPtr->childTable, &search)) { - childNsPtr = Tcl_GetHashValue(entryPtr); - Tcl_DeleteNamespace(childNsPtr); + while (nsPtr->childTable.numEntries > 0) { + int length = nsPtr->childTable.numEntries; + Namespace **children = TclStackAlloc((Tcl_Interp *) iPtr, + sizeof(Namespace *) * length); + + i = 0; + for (entryPtr = Tcl_FirstHashEntry(&nsPtr->childTable, &search); + entryPtr != NULL; + entryPtr = Tcl_NextHashEntry(&search)) { + children[i] = Tcl_GetHashValue(entryPtr); + children[i]->refCount++; + i++; + } + for (i = 0 ; i < length ; i++) { + Tcl_DeleteNamespace((Tcl_Namespace *) children[i]); + TclNsDecrRefCount(children[i]); + } + TclStackFree((Tcl_Interp *) iPtr, children); } #else if (nsPtr->childTablePtr != NULL) { - for (entryPtr = Tcl_FirstHashEntry(nsPtr->childTablePtr, &search); - entryPtr != NULL; - entryPtr = Tcl_FirstHashEntry(nsPtr->childTablePtr,&search)) { - childNsPtr = Tcl_GetHashValue(entryPtr); - Tcl_DeleteNamespace(childNsPtr); + while (nsPtr->childTablePtr->numEntries > 0) { + int length = nsPtr->childTablePtr->numEntries; + Namespace **children = TclStackAlloc((Tcl_Interp *) iPtr, + sizeof(Namespace *) * length); + + i = 0; + for (entryPtr = Tcl_FirstHashEntry(nsPtr->childTablePtr, &search); + entryPtr != NULL; + entryPtr = Tcl_NextHashEntry(&search)) { + children[i] = Tcl_GetHashValue(entryPtr); + children[i]->refCount++; + i++; + } + for (i = 0 ; i < length ; i++) { + Tcl_DeleteNamespace((Tcl_Namespace *) children[i]); + TclNsDecrRefCount(children[i]); + } + TclStackFree((Tcl_Interp *) iPtr, children); } } #endif @@ -1942,7 +2019,7 @@ InvokeImportedNRCmd( Command *realCmdPtr = dataPtr->realCmdPtr; TclSkipTailcall(interp); - return Tcl_NRCmdSwap(interp, (Tcl_Command) realCmdPtr, objc, objv, 0); + return TclNREvalObjv(interp, objc, objv, TCL_EVAL_NOERR, realCmdPtr); } static int @@ -3021,7 +3098,7 @@ NamespaceCodeCmd( */ arg = TclGetStringFromObj(objv[1], &length); - if (*arg==':' && length > 20 + if (*arg==':' && length > 20 && strncmp(arg, "::namespace inscope ", 20) == 0) { Tcl_SetObjResult(interp, objv[1]); return TCL_OK; @@ -3274,11 +3351,8 @@ NRNamespaceEvalCmd( /* This is needed to satisfy GCC 3.3's strict aliasing rules */ framePtrPtr = &framePtr; - result = TclPushStackFrame(interp, (Tcl_CallFrame **) framePtrPtr, + (void) TclPushStackFrame(interp, (Tcl_CallFrame **) framePtrPtr, namespacePtr, /*isProcCallFrame*/ 0); - if (result != TCL_OK) { - return TCL_ERROR; - } if (iPtr->ensembleRewrite.sourceObjs == NULL) { framePtr->objc = objc; @@ -3695,7 +3769,7 @@ NRNamespaceInscopeCmd( Tcl_Namespace *namespacePtr; CallFrame *framePtr, **framePtrPtr; register Interp *iPtr = (Interp *) interp; - int i, result; + int i; Tcl_Obj *cmdObjPtr; if (objc < 3) { @@ -3717,11 +3791,8 @@ NRNamespaceInscopeCmd( framePtrPtr = &framePtr; /* This is needed to satisfy GCC's * strict aliasing rules. */ - result = TclPushStackFrame(interp, (Tcl_CallFrame **) framePtrPtr, + (void) TclPushStackFrame(interp, (Tcl_CallFrame **) framePtrPtr, namespacePtr, /*isProcCallFrame*/ 0); - if (result != TCL_OK) { - return result; - } if (iPtr->ensembleRewrite.sourceObjs == NULL) { framePtr->objc = objc; @@ -4894,7 +4965,7 @@ TclLogCommandInfo( if (Tcl_IsShared(iPtr->errorStack)) { Tcl_Obj *newObj; - + newObj = Tcl_DuplicateObj(iPtr->errorStack); Tcl_DecrRefCount(iPtr->errorStack); Tcl_IncrRefCount(newObj); @@ -4926,7 +4997,7 @@ TclLogCommandInfo( Tcl_ListObjAppendElement(NULL, iPtr->errorStack, Tcl_NewStringObj(command, length)); } - } + } if (!iPtr->framePtr->objc) { /* @@ -4979,7 +5050,7 @@ TclErrorStackResetIf( if (Tcl_IsShared(iPtr->errorStack)) { Tcl_Obj *newObj; - + newObj = Tcl_DuplicateObj(iPtr->errorStack); Tcl_DecrRefCount(iPtr->errorStack); Tcl_IncrRefCount(newObj); @@ -4999,7 +5070,7 @@ TclErrorStackResetIf( Tcl_ListObjAppendElement(NULL, iPtr->errorStack, iPtr->innerLiteral); Tcl_ListObjAppendElement(NULL, iPtr->errorStack, Tcl_NewStringObj(msg, length)); - } + } } /* |