diff options
Diffstat (limited to 'generic/tclProc.c')
| -rw-r--r-- | generic/tclProc.c | 1036 |
1 files changed, 582 insertions, 454 deletions
diff --git a/generic/tclProc.c b/generic/tclProc.c index b8a5e6d..6cd5bb2 100644 --- a/generic/tclProc.c +++ b/generic/tclProc.c @@ -15,6 +15,18 @@ #include "tclInt.h" #include "tclCompile.h" +#include "tclOOInt.h" + +/* + * Variables that are part of the [apply] command implementation and which + * have to be passed to the other side of the NRE call. + */ + +typedef struct { + int isRootEnsemble; + Command cmd; + ExtraFrameInfo efi; +} ApplyExtraData; /* * Prototypes for static functions in this file @@ -27,29 +39,29 @@ static int InitArgsAndLocals(Tcl_Interp *interp, Tcl_Obj *procNameObj, int skip); static void InitResolvedLocals(Tcl_Interp *interp, ByteCode *codePtr, Var *defPtr, - Namespace *nsPtr); -static void InitLocalCache(Proc *procPtr); + Namespace *nsPtr); +static void InitLocalCache(Proc *procPtr); static int PushProcCallFrame(ClientData clientData, register Tcl_Interp *interp, int objc, - Tcl_Obj *CONST objv[], int isLambda); + Tcl_Obj *const objv[], int isLambda); static void ProcBodyDup(Tcl_Obj *srcPtr, Tcl_Obj *dupPtr); static void ProcBodyFree(Tcl_Obj *objPtr); -static int ProcWrongNumArgs(Tcl_Interp *interp, int skip); +static int ProcWrongNumArgs(Tcl_Interp *interp, int skip); static void MakeProcError(Tcl_Interp *interp, Tcl_Obj *procNameObj); static void MakeLambdaError(Tcl_Interp *interp, Tcl_Obj *procNameObj); static int SetLambdaFromAny(Tcl_Interp *interp, Tcl_Obj *objPtr); -static int ProcCompileProc(Tcl_Interp *interp, Proc *procPtr, - Tcl_Obj *bodyPtr, Namespace *nsPtr, - CONST char *description, CONST char *procName, - Proc **procPtrPtr); + +static Tcl_NRPostProc ApplyNR2; +static Tcl_NRPostProc InterpProcNR2; +static Tcl_NRPostProc Uplevel_Callback; /* * The ProcBodyObjType type */ -Tcl_ObjType tclProcBodyType = { +const Tcl_ObjType tclProcBodyType = { "procbody", /* name for this type */ ProcBodyFree, /* FreeInternalRep function */ ProcBodyDup, /* DupInternalRep function */ @@ -61,15 +73,15 @@ Tcl_ObjType tclProcBodyType = { }; /* - * The [upvar]/[uplevel] level reference type. Uses the twoPtrValue field, - * encoding the type of level reference in ptr1 and the actual parsed out - * offset in ptr2. + * The [upvar]/[uplevel] level reference type. Uses the ptrAndLongRep field, + * encoding the type of level reference in ptr and the actual parsed out + * offset in value. * * Uses the default behaviour throughout, and never disposes of the string * rep; it's just a cache type. */ -static Tcl_ObjType levelReferenceType = { +static const Tcl_ObjType levelReferenceType = { "levelReference", NULL, NULL, NULL, NULL }; @@ -83,7 +95,7 @@ static Tcl_ObjType levelReferenceType = { * will execute within. */ -static Tcl_ObjType lambdaType = { +static const Tcl_ObjType lambdaType = { "lambdaExpr", /* name */ FreeLambdaInternalRep, /* freeIntRepProc */ DupLambdaInternalRep, /* dupIntRepProc */ @@ -114,12 +126,12 @@ Tcl_ProcObjCmd( ClientData dummy, /* Not used. */ Tcl_Interp *interp, /* Current interpreter. */ int objc, /* Number of arguments. */ - Tcl_Obj *CONST objv[]) /* Argument objects. */ + Tcl_Obj *const objv[]) /* Argument objects. */ { register Interp *iPtr = (Interp *) interp; Proc *procPtr; - char *fullName; - CONST char *procName, *procArgs, *procBody; + const char *fullName; + const char *procName, *procArgs, *procBody; Namespace *nsPtr, *altNsPtr, *cxtNsPtr; Tcl_Command cmd; Tcl_DString ds; @@ -183,9 +195,8 @@ Tcl_ProcObjCmd( } Tcl_DStringAppend(&ds, procName, -1); - cmd = Tcl_CreateObjCommand(interp, Tcl_DStringValue(&ds), - TclObjInterpProc, (ClientData) procPtr, TclProcDeleteProc); - + cmd = Tcl_NRCreateCommand(interp, Tcl_DStringValue(&ds), TclObjInterpProc, + TclNRInterpProc, procPtr, TclProcDeleteProc); Tcl_DStringFree(&ds); /* @@ -211,11 +222,9 @@ Tcl_ProcObjCmd( */ if (iPtr->cmdFramePtr) { - CmdFrame *contextPtr; + CmdFrame *contextPtr = TclStackAlloc(interp, sizeof(CmdFrame)); - contextPtr = (CmdFrame *) TclStackAlloc(interp, sizeof(CmdFrame)); *contextPtr = *iPtr->cmdFramePtr; - if (contextPtr->type == TCL_LOCATION_BC) { /* * Retrieve source information from the bytecode, if possible. If @@ -243,12 +252,12 @@ Tcl_ProcObjCmd( if (contextPtr->line && (contextPtr->nline >= 4) && (contextPtr->line[3] >= 0)) { int isNew; - Tcl_HashEntry* hePtr; - CmdFrame *cfPtr = (CmdFrame *) ckalloc(sizeof(CmdFrame)); + Tcl_HashEntry *hePtr; + CmdFrame *cfPtr = ckalloc(sizeof(CmdFrame)); cfPtr->level = -1; cfPtr->type = contextPtr->type; - cfPtr->line = (int *) ckalloc(sizeof(int)); + cfPtr->line = ckalloc(sizeof(int)); cfPtr->line[0] = contextPtr->line[3]; cfPtr->nline = 1; cfPtr->framePtr = NULL; @@ -260,31 +269,32 @@ Tcl_ProcObjCmd( cfPtr->cmd.str.cmd = NULL; cfPtr->cmd.str.len = 0; - hePtr = Tcl_CreateHashEntry(iPtr->linePBodyPtr, (char *) procPtr, &isNew); + hePtr = Tcl_CreateHashEntry(iPtr->linePBodyPtr, + procPtr, &isNew); if (!isNew) { /* - * Get the old command frame and release it. See also + * Get the old command frame and release it. See also * TclProcCleanupProc in this file. Currently it seems as * if only the procbodytest::proc command of the testsuite * is able to trigger this situation. */ - CmdFrame* cfOldPtr = (CmdFrame *) Tcl_GetHashValue(hePtr); + CmdFrame *cfOldPtr = Tcl_GetHashValue(hePtr); if (cfOldPtr->type == TCL_LOCATION_SOURCE) { Tcl_DecrRefCount(cfOldPtr->data.eval.path); cfOldPtr->data.eval.path = NULL; } - ckfree((char *) cfOldPtr->line); + ckfree(cfOldPtr->line); cfOldPtr->line = NULL; - ckfree((char *) cfOldPtr); + ckfree(cfOldPtr); } Tcl_SetHashValue(hePtr, cfPtr); } /* - * 'contextPtr' is going out of scope; account for the reference that - * it's holding to the path name. + * 'contextPtr' is going out of scope; account for the reference + * that it's holding to the path name. */ Tcl_DecrRefCount(contextPtr->data.eval.path); @@ -378,17 +388,17 @@ int TclCreateProc( Tcl_Interp *interp, /* Interpreter containing proc. */ Namespace *nsPtr, /* Namespace containing this proc. */ - CONST char *procName, /* Unqualified name of this proc. */ + const char *procName, /* Unqualified name of this proc. */ Tcl_Obj *argsPtr, /* Description of arguments. */ Tcl_Obj *bodyPtr, /* Command body. */ Proc **procPtrPtr) /* Returns: pointer to proc data. */ { Interp *iPtr = (Interp *) interp; - CONST char **argArray = NULL; + const char **argArray = NULL; register Proc *procPtr; int i, length, result, numArgs; - CONST char *args, *bytes, *p; + const char *args, *bytes, *p; register CompiledLocal *localPtr = NULL; Tcl_Obj *defPtr; int precompiled = 0; @@ -427,7 +437,7 @@ TclCreateProc( */ if (Tcl_IsShared(bodyPtr)) { - Tcl_Obj* sharedBodyPtr = bodyPtr; + Tcl_Obj *sharedBodyPtr = bodyPtr; bytes = TclGetStringFromObj(bodyPtr, &length); bodyPtr = Tcl_NewStringObj(bytes, length); @@ -438,7 +448,7 @@ TclCreateProc( * not lost and applies to the new body as well. */ - TclContinuationsCopy (bodyPtr, sharedBodyPtr); + TclContinuationsCopy(bodyPtr, sharedBodyPtr); } /* @@ -449,7 +459,7 @@ TclCreateProc( Tcl_IncrRefCount(bodyPtr); - procPtr = (Proc *) ckalloc(sizeof(Proc)); + procPtr = ckalloc(sizeof(Proc)); procPtr->iPtr = iPtr; procPtr->refCount = 1; procPtr->bodyPtr = bodyPtr; @@ -490,7 +500,7 @@ TclCreateProc( for (i = 0; i < numArgs; i++) { int fieldCount, nameLength, valueLength; - CONST char **fieldValues; + const char **fieldValues; /* * Now divide the specifier up into name and default. @@ -502,14 +512,14 @@ TclCreateProc( goto procError; } if (fieldCount > 2) { - ckfree((char *) fieldValues); + ckfree(fieldValues); Tcl_AppendResult(interp, "too many fields in argument specifier \"", argArray[i], "\"", NULL); goto procError; } if ((fieldCount == 0) || (*fieldValues[0] == 0)) { - ckfree((char *) fieldValues); + ckfree(fieldValues); Tcl_AppendResult(interp, "argument with no name", NULL); goto procError; } @@ -528,23 +538,21 @@ TclCreateProc( p = fieldValues[0]; while (*p != '\0') { if (*p == '(') { - CONST char *q = p; + const char *q = p; do { q++; } while (*q != '\0'); q--; if (*q == ')') { /* We have an array element. */ Tcl_AppendResult(interp, "formal parameter \"", - fieldValues[0], - "\" is an array element", NULL); - ckfree((char *) fieldValues); + fieldValues[0], "\" is an array element", NULL); + ckfree(fieldValues); goto procError; } } else if ((*p == ':') && (*(p+1) == ':')) { Tcl_AppendResult(interp, "formal parameter \"", - fieldValues[0], - "\" is not a simple name", NULL); - ckfree((char *) fieldValues); + fieldValues[0], "\" is not a simple name", NULL); + ckfree(fieldValues); goto procError; } p++; @@ -571,7 +579,7 @@ TclCreateProc( Tcl_SetObjResult(interp, Tcl_ObjPrintf( "procedure \"%s\": formal parameter %d is " "inconsistent with precompiled body", procName, i)); - ckfree((char *) fieldValues); + ckfree(fieldValues); goto procError; } @@ -581,7 +589,7 @@ TclCreateProc( if (localPtr->defValuePtr != NULL) { int tmpLength; - char *tmpPtr = TclGetStringFromObj(localPtr->defValuePtr, + const char *tmpPtr = TclGetStringFromObj(localPtr->defValuePtr, &tmpLength); if ((valueLength != tmpLength) || @@ -590,7 +598,7 @@ TclCreateProc( "procedure \"%s\": formal parameter \"%s\" has " "default value inconsistent with precompiled body", procName, fieldValues[0])); - ckfree((char *) fieldValues); + ckfree(fieldValues); goto procError; } } @@ -608,9 +616,7 @@ TclCreateProc( * local variables for the argument. */ - localPtr = (CompiledLocal *) ckalloc((unsigned) - (sizeof(CompiledLocal) - sizeof(localPtr->name) - + nameLength + 1)); + localPtr = ckalloc(TclOffset(CompiledLocal, name) + nameLength+1); if (procPtr->firstLocalPtr == NULL) { procPtr->firstLocalPtr = procPtr->lastLocalPtr = localPtr; } else { @@ -639,11 +645,11 @@ TclCreateProc( } } - ckfree((char *) fieldValues); + ckfree(fieldValues); } *procPtrPtr = procPtr; - ckfree((char *) argArray); + ckfree(argArray); return TCL_OK; procError: @@ -660,12 +666,12 @@ TclCreateProc( Tcl_DecrRefCount(defPtr); } - ckfree((char *) localPtr); + ckfree(localPtr); } - ckfree((char *) procPtr); + ckfree(procPtr); } if (argArray != NULL) { - ckfree((char *) argArray); + ckfree(argArray); } return TCL_ERROR; } @@ -698,7 +704,7 @@ TclCreateProc( int TclGetFrame( Tcl_Interp *interp, /* Interpreter in which to find frame. */ - CONST char *name, /* String describing frame. */ + const char *name, /* String describing frame. */ CallFrame **framePtrPtr) /* Store pointer to frame here (or NULL if * global frame indicated). */ { @@ -784,7 +790,7 @@ TclObjGetFrame( register Interp *iPtr = (Interp *) interp; int curLevel, level, result; CallFrame *framePtr; - CONST char *name = TclGetString(objPtr); + const char *name; /* * Parse object to figure out which level number to go to. @@ -792,11 +798,17 @@ TclObjGetFrame( result = 1; curLevel = iPtr->varFramePtr->level; + if (objPtr == NULL) { + name = "1"; + goto haveLevel1; + } + + name = TclGetString(objPtr); if (objPtr->typePtr == &levelReferenceType) { - if (PTR2INT(objPtr->internalRep.twoPtrValue.ptr1)) { - level = curLevel - PTR2INT(objPtr->internalRep.twoPtrValue.ptr2); + if (objPtr->internalRep.ptrAndLongRep.ptr != NULL) { + level = curLevel - objPtr->internalRep.ptrAndLongRep.value; } else { - level = PTR2INT(objPtr->internalRep.twoPtrValue.ptr2); + level = objPtr->internalRep.ptrAndLongRep.value; } if (level < 0) { goto levelError; @@ -824,8 +836,8 @@ TclObjGetFrame( TclFreeIntRep(objPtr); objPtr->typePtr = &levelReferenceType; - objPtr->internalRep.twoPtrValue.ptr1 = (void *) 0; - objPtr->internalRep.twoPtrValue.ptr2 = INT2PTR(level); + objPtr->internalRep.ptrAndLongRep.ptr = NULL; + objPtr->internalRep.ptrAndLongRep.value = level; } else if (isdigit(UCHAR(*name))) { /* INTL: digit */ if (Tcl_GetInt(interp, name, &level) != TCL_OK) { return -1; @@ -839,14 +851,16 @@ TclObjGetFrame( TclFreeIntRep(objPtr); objPtr->typePtr = &levelReferenceType; - objPtr->internalRep.twoPtrValue.ptr1 = (void *) 1; - objPtr->internalRep.twoPtrValue.ptr2 = INT2PTR(level); + objPtr->internalRep.ptrAndLongRep.ptr = (void *) 1; /* non-NULL */ + objPtr->internalRep.ptrAndLongRep.value = level; level = curLevel - level; } else { /* - * Don't cache as the object *isn't* a level reference. + * Don't cache as the object *isn't* a level reference (might even be + * NULL...) */ + haveLevel1: level = curLevel - 1; result = 0; } @@ -870,6 +884,7 @@ TclObjGetFrame( levelError: Tcl_ResetResult(interp); Tcl_AppendResult(interp, "bad level \"", name, "\"", NULL); + Tcl_SetErrorCode(interp, "TCL", "VALUE", "LEVEL", NULL); return -1; } @@ -890,17 +905,52 @@ TclObjGetFrame( *---------------------------------------------------------------------- */ +static int +Uplevel_Callback( + ClientData data[], + Tcl_Interp *interp, + int result) +{ + CallFrame *savedVarFramePtr = data[0]; + + if (result == TCL_ERROR) { + Tcl_AppendObjToErrorInfo(interp, Tcl_ObjPrintf( + "\n (\"uplevel\" body line %d)", Tcl_GetErrorLine(interp))); + } + + /* + * Restore the variable frame, and return. + */ + + ((Interp *)interp)->varFramePtr = savedVarFramePtr; + return result; +} + /* ARGSUSED */ int Tcl_UplevelObjCmd( ClientData dummy, /* Not used. */ Tcl_Interp *interp, /* Current interpreter. */ int objc, /* Number of arguments. */ - Tcl_Obj *CONST objv[]) /* Argument objects. */ + Tcl_Obj *const objv[]) /* Argument objects. */ +{ + return Tcl_NRCallObjProc(interp, TclNRUplevelObjCmd, dummy, objc, objv); +} + +int +TclNRUplevelObjCmd( + ClientData dummy, /* Not used. */ + Tcl_Interp *interp, /* Current interpreter. */ + int objc, /* Number of arguments. */ + Tcl_Obj *const objv[]) /* Argument objects. */ { + register Interp *iPtr = (Interp *) interp; + CmdFrame *invoker = NULL; + int word = 0; int result; CallFrame *savedVarFramePtr, *framePtr; + Tcl_Obj *objPtr; if (objc < 2) { uplevelSyntax: @@ -916,11 +966,11 @@ Tcl_UplevelObjCmd( if (result == -1) { return TCL_ERROR; } - objc -= (result+1); + objc -= result + 1; if (objc == 0) { goto uplevelSyntax; } - objv += (result+1); + objv += result + 1; /* * Modify the interpreter state to execute in the given frame. @@ -935,14 +985,12 @@ Tcl_UplevelObjCmd( if (objc == 1) { /* - * TIP #280. Make argument location available to eval'd script + * TIP #280. Make actual argument location available to eval'd script */ - CmdFrame* invoker = NULL; - int word = 0; + TclArgumentGet(interp, objv[0], &invoker, &word); + objPtr = objv[0]; - TclArgumentGet (interp, objv[0], &invoker, &word); - result = TclEvalObjEx(interp, objv[0], 0, invoker, word); } else { /* * More than one argument: concatenate them together with spaces @@ -950,22 +998,12 @@ Tcl_UplevelObjCmd( * object when it decrements its refcount after eval'ing it. */ - Tcl_Obj *objPtr; - objPtr = Tcl_ConcatObj(objc, objv); - result = Tcl_EvalObjEx(interp, objPtr, TCL_EVAL_DIRECT); } - if (result == TCL_ERROR) { - Tcl_AppendObjToErrorInfo(interp, Tcl_ObjPrintf( - "\n (\"uplevel\" body line %d)", interp->errorLine)); - } - - /* - * Restore the variable frame, and return. - */ - iPtr->varFramePtr = savedVarFramePtr; - return result; + TclNRAddCallback(interp, Uplevel_Callback, savedVarFramePtr, NULL, NULL, + NULL); + return TclNREvalObjEx(interp, objPtr, 0, invoker, word); } /* @@ -994,10 +1032,9 @@ Tcl_UplevelObjCmd( Proc * TclFindProc( Interp *iPtr, /* Interpreter in which to look. */ - CONST char *procName) /* Name of desired procedure. */ + const char *procName) /* Name of desired procedure. */ { Tcl_Command cmd; - Tcl_Command origCmd; Command *cmdPtr; cmd = Tcl_FindCommand((Tcl_Interp *) iPtr, procName, NULL, /*flags*/ 0); @@ -1006,14 +1043,7 @@ TclFindProc( } cmdPtr = (Command *) cmd; - origCmd = TclGetOriginalCommand(cmd); - if (origCmd != NULL) { - cmdPtr = (Command *) origCmd; - } - if (cmdPtr->objProc != TclObjInterpProc) { - return NULL; - } - return (Proc *) cmdPtr->objClientData; + return TclIsProc(cmdPtr); } /* @@ -1038,41 +1068,21 @@ Proc * TclIsProc( Command *cmdPtr) /* Command to test. */ { - Tcl_Command origCmd; + Tcl_Command origCmd = TclGetOriginalCommand((Tcl_Command) cmdPtr); - origCmd = TclGetOriginalCommand((Tcl_Command) cmdPtr); if (origCmd != NULL) { cmdPtr = (Command *) origCmd; } - if (cmdPtr->objProc == TclObjInterpProc) { - return (Proc *) cmdPtr->objClientData; + if (cmdPtr->deleteProc == TclProcDeleteProc) { + return cmdPtr->objClientData; } - return (Proc *) 0; + return NULL; } -/* - *---------------------------------------------------------------------- - * - * InitArgsAndLocals -- - * - * This routine is invoked in order to initialize the arguments and other - * compiled locals table for a new call frame. - * - * Results: - * A standard Tcl result. - * - * Side effects: - * Allocates memory on the stack for the compiled local variables, the - * caller is responsible for freeing them. Initialises all variables. May - * invoke various name resolvers in order to determine which variables - * are being referenced at runtime. - * - *---------------------------------------------------------------------- - */ - static int ProcWrongNumArgs( - Tcl_Interp *interp, int skip) + Tcl_Interp *interp, + int skip) { CallFrame *framePtr = ((Interp *)interp)->varFramePtr; register Proc *procPtr = framePtr->procPtr; @@ -1086,7 +1096,7 @@ ProcWrongNumArgs( */ numArgs = framePtr->procPtr->numArgs; - desiredObjs = (Tcl_Obj **) TclStackAlloc(interp, + desiredObjs = TclStackAlloc(interp, (int) sizeof(Tcl_Obj *) * (numArgs+1)); if (framePtr->isProcCallFrame & FRAME_IS_LAMBDA) { @@ -1110,7 +1120,7 @@ ProcWrongNumArgs( Tcl_AppendStringsToObj(argObj, "?", TclGetString(namePtr), "?", NULL); } else if (defPtr->flags & VAR_IS_ARGS) { numArgs--; - final = "..."; + final = "?arg ...?"; break; } else { argObj = namePtr; @@ -1140,7 +1150,6 @@ ProcWrongNumArgs( * DEPRECATED: functionality has been inlined elsewhere; this function * remains to insure binary compatibility with Itcl. * - * Results: * None. * @@ -1150,6 +1159,7 @@ ProcWrongNumArgs( * *---------------------------------------------------------------------- */ + void TclInitCompiledLocals( Tcl_Interp *interp, /* Current interpreter. */ @@ -1219,37 +1229,7 @@ InitResolvedLocals( } if (!(haveResolvers && (codePtr->flags & TCL_BYTECODE_RESOLVE_VARS))) { - /* - * Initialize the array of local variables stored in the call frame. - * Some variables may have special resolution rules. In that case, we - * call their "resolver" procs to get our hands on the variable, and - * we make the compiled local a link to the real variable. - */ - - doInitResolvedLocals: - for (; localPtr != NULL; varPtr++, localPtr = localPtr->nextPtr) { - varPtr->flags = 0; - varPtr->value.objPtr = NULL; - - /* - * Now invoke the resolvers to determine the exact variables - * that should be used. - */ - - resVarInfo = localPtr->resolveInfo; - if (resVarInfo && resVarInfo->fetchProc) { - Var *resolvedVarPtr = (Var *) - (*resVarInfo->fetchProc)(interp, resVarInfo); - if (resolvedVarPtr) { - if (TclIsVarInHash(resolvedVarPtr)) { - VarHashRefCount(resolvedVarPtr)++; - } - varPtr->flags = VAR_LINK; - varPtr->value.linkPtr = resolvedVarPtr; - } - } - } - return; + goto doInitResolvedLocals; } /* @@ -1263,7 +1243,7 @@ InitResolvedLocals( if (localPtr->resolveInfo->deleteProc) { localPtr->resolveInfo->deleteProc(localPtr->resolveInfo); } else { - ckfree((char *) localPtr->resolveInfo); + ckfree(localPtr->resolveInfo); } localPtr->resolveInfo = NULL; } @@ -1276,7 +1256,7 @@ InitResolvedLocals( int result; if (nsPtr->compiledVarResProc) { - result = (*nsPtr->compiledVarResProc)(nsPtr->interp, + result = nsPtr->compiledVarResProc(nsPtr->interp, localPtr->name, localPtr->nameLength, (Tcl_Namespace *) nsPtr, &vinfo); } else { @@ -1285,7 +1265,7 @@ InitResolvedLocals( while ((result == TCL_CONTINUE) && resPtr) { if (resPtr->compiledVarResProc) { - result = (*resPtr->compiledVarResProc)(nsPtr->interp, + result = resPtr->compiledVarResProc(nsPtr->interp, localPtr->name, localPtr->nameLength, (Tcl_Namespace *) nsPtr, &vinfo); } @@ -1299,9 +1279,40 @@ InitResolvedLocals( } localPtr = firstLocalPtr; codePtr->flags &= ~TCL_BYTECODE_RESOLVE_VARS; - goto doInitResolvedLocals; -} + /* + * Initialize the array of local variables stored in the call frame. Some + * variables may have special resolution rules. In that case, we call + * their "resolver" procs to get our hands on the variable, and we make + * the compiled local a link to the real variable. + */ + + doInitResolvedLocals: + for (; localPtr != NULL; varPtr++, localPtr = localPtr->nextPtr) { + varPtr->flags = 0; + varPtr->value.objPtr = NULL; + + /* + * Now invoke the resolvers to determine the exact variables that + * should be used. + */ + + resVarInfo = localPtr->resolveInfo; + if (resVarInfo && resVarInfo->fetchProc) { + register Var *resolvedVarPtr = (Var *) + resVarInfo->fetchProc(interp, resVarInfo); + + if (resolvedVarPtr) { + if (TclIsVarInHash(resolvedVarPtr)) { + VarHashRefCount(resolvedVarPtr)++; + } + varPtr->flags = VAR_LINK; + varPtr->value.linkPtr = resolvedVarPtr; + } + } + } +} + void TclFreeLocalCache( Tcl_Interp *interp, @@ -1311,12 +1322,13 @@ TclFreeLocalCache( Tcl_Obj **namePtrPtr = &localCachePtr->varName0; for (i = 0; i < localCachePtr->numVars; i++, namePtrPtr++) { - Tcl_Obj *objPtr = *namePtrPtr; + register Tcl_Obj *objPtr = *namePtrPtr; + /* - * Note that this can be called with interp==NULL, on interp - * deletion. In that case, the literal table and objects go away - * on their own. + * Note that this can be called with interp==NULL, on interp deletion. + * In that case, the literal table and objects go away on their own. */ + if (objPtr) { if (interp) { TclReleaseLiteral(interp, objPtr); @@ -1325,11 +1337,12 @@ TclFreeLocalCache( } } } - ckfree((char *) localCachePtr); + ckfree(localCachePtr); } - + static void -InitLocalCache(Proc *procPtr) +InitLocalCache( + Proc *procPtr) { Interp *iPtr = procPtr->iPtr; ByteCode *codePtr = procPtr->bodyPtr->internalRep.otherValuePtr; @@ -1348,9 +1361,9 @@ InitLocalCache(Proc *procPtr) * for future calls. */ - localCachePtr = (LocalCache *) ckalloc(sizeof(LocalCache) - + (localCt-1)*sizeof(Tcl_Obj *) - + numArgs*sizeof(Var)); + localCachePtr = ckalloc(sizeof(LocalCache) + + (localCt - 1) * sizeof(Tcl_Obj *) + + numArgs * sizeof(Var)); namePtr = &localCachePtr->varName0; varPtr = (Var *) (namePtr + localCt); @@ -1372,12 +1385,32 @@ InitLocalCache(Proc *procPtr) i++; } namePtr++; - localPtr=localPtr->nextPtr; + localPtr = localPtr->nextPtr; } codePtr->localCachePtr = localCachePtr; localCachePtr->refCount = 1; - localCachePtr->numVars = localCt; + localCachePtr->numVars = localCt; } + +/* + *---------------------------------------------------------------------- + * + * InitArgsAndLocals -- + * + * This routine is invoked in order to initialize the arguments and other + * compiled locals table for a new call frame. + * + * Results: + * A standard Tcl result. + * + * Side effects: + * Allocates memory on the stack for the compiled local variables, the + * caller is responsible for freeing them. Initialises all variables. May + * invoke various name resolvers in order to determine which variables + * are being referenced at runtime. + * + *---------------------------------------------------------------------- + */ static int InitArgsAndLocals( @@ -1416,7 +1449,7 @@ InitArgsAndLocals( * parameters. */ - varPtr = (Var*) TclStackAlloc(interp, (int)(localCt*sizeof(Var))); + varPtr = TclStackAlloc(interp, (int)(localCt * sizeof(Var))); framePtr->compiledLocals = varPtr; framePtr->numCompiledLocals = localCt; @@ -1439,7 +1472,7 @@ InitArgsAndLocals( } } imax = ((argCt < numArgs-1) ? argCt : numArgs-1); - for (i = 0; i < imax; i++, varPtr++, defPtr++) { + for (i = 0; i < imax; i++, varPtr++, defPtr ? defPtr++ : defPtr) { /* * "Normal" arguments; last formal is special, depends on it being * 'args'. @@ -1451,21 +1484,20 @@ InitArgsAndLocals( varPtr->value.objPtr = objPtr; Tcl_IncrRefCount(objPtr); /* Local var is a reference. */ } - for (; i < numArgs-1; i++, varPtr++, defPtr++) { + for (; i < numArgs-1; i++, varPtr++, defPtr ? defPtr++ : defPtr) { /* * This loop is entered if argCt < (numArgs-1). Set default values; * last formal is special. */ - Tcl_Obj *objPtr = defPtr->value.objPtr; + Tcl_Obj *objPtr = defPtr ? defPtr->value.objPtr : NULL; - if (objPtr) { - varPtr->flags = 0; - varPtr->value.objPtr = objPtr; - Tcl_IncrRefCount(objPtr); /* Local var reference. */ - } else { + if (!objPtr) { goto incorrectArgs; } + varPtr->flags = 0; + varPtr->value.objPtr = objPtr; + Tcl_IncrRefCount(objPtr); /* Local var reference. */ } /* @@ -1473,9 +1505,8 @@ InitArgsAndLocals( * defPtr and varPtr point to the last argument to be initialized. */ - varPtr->flags = 0; - if (defPtr->flags & VAR_IS_ARGS) { + if (defPtr && defPtr->flags & VAR_IS_ARGS) { Tcl_Obj *listPtr = Tcl_NewListObj(argCt-i, argObjs+i); varPtr->value.objPtr = listPtr; @@ -1485,7 +1516,7 @@ InitArgsAndLocals( varPtr->value.objPtr = objPtr; Tcl_IncrRefCount(objPtr); /* Local var is a reference. */ - } else if ((argCt < numArgs) && (defPtr->value.objPtr != NULL)) { + } else if ((argCt < numArgs) && defPtr && defPtr->value.objPtr) { Tcl_Obj *objPtr = defPtr->value.objPtr; varPtr->value.objPtr = objPtr; @@ -1502,7 +1533,8 @@ InitArgsAndLocals( correctArgs: if (numArgs < localCt) { - if (!framePtr->nsPtr->compiledVarResProc && !((Interp *)interp)->resolverPtr) { + if (!framePtr->nsPtr->compiledVarResProc + && !((Interp *)interp)->resolverPtr) { memset(varPtr, 0, (localCt - numArgs)*sizeof(Var)); } else { InitResolvedLocals(interp, codePtr, varPtr, framePtr->nsPtr); @@ -1511,13 +1543,13 @@ InitArgsAndLocals( return TCL_OK; - - incorrectArgs: /* * Initialise all compiled locals to avoid problems at DeleteLocalVars. */ - memset(varPtr, 0, ((framePtr->compiledLocals + localCt)-varPtr)*sizeof(Var)); + incorrectArgs: + memset(varPtr, 0, + ((framePtr->compiledLocals + localCt)-varPtr) * sizeof(Var)); return ProcWrongNumArgs(interp, skip); } @@ -1541,17 +1573,17 @@ InitArgsAndLocals( static int PushProcCallFrame( - ClientData clientData, /* Record describing procedure to be + ClientData clientData, /* Record describing procedure to be * interpreted. */ register Tcl_Interp *interp,/* Interpreter in which procedure was * invoked. */ int objc, /* Count of number of arguments to this * procedure. */ - Tcl_Obj *CONST objv[], /* Argument value objects. */ + Tcl_Obj *const objv[], /* Argument value objects. */ int isLambda) /* 1 if this is a call by ApplyObjCmd: it * needs special rules for error msg */ { - Proc *procPtr = (Proc *) clientData; + Proc *procPtr = clientData; Namespace *nsPtr = procPtr->cmdPtr->nsPtr; CallFrame *framePtr, **framePtrPtr; int result; @@ -1578,7 +1610,7 @@ PushProcCallFrame( */ codePtr = procPtr->bodyPtr->internalRep.otherValuePtr; - if (((Interp *) *codePtr->interpHandle != iPtr) + if (((Interp *) *codePtr->interpHandle != iPtr) || (codePtr->compileEpoch != iPtr->compileEpoch) || (codePtr->nsPtr != nsPtr) || (codePtr->nsEpoch != nsPtr->resolverEpoch)) { @@ -1586,9 +1618,9 @@ PushProcCallFrame( } } else { doCompilation: - result = ProcCompileProc(interp, procPtr, procPtr->bodyPtr, nsPtr, + result = TclProcCompileProc(interp, procPtr, procPtr->bodyPtr, nsPtr, (isLambda ? "body of lambda term" : "body of proc"), - TclGetString(objv[isLambda]), &procPtr); + TclGetString(objv[isLambda])); if (result != TCL_OK) { return result; } @@ -1636,28 +1668,44 @@ PushProcCallFrame( int TclObjInterpProc( - ClientData clientData, /* Record describing procedure to be + ClientData clientData, /* Record describing procedure to be * interpreted. */ register Tcl_Interp *interp,/* Interpreter in which procedure was * invoked. */ int objc, /* Count of number of arguments to this * procedure. */ - Tcl_Obj *CONST objv[]) /* Argument value objects. */ + Tcl_Obj *const objv[]) /* Argument value objects. */ { - int result; + /* + * Not used much in the core; external interface for iTcl + */ - result = PushProcCallFrame(clientData, interp, objc, objv, /*isLambda*/ 0); - if (result == TCL_OK) { - return TclObjInterpProcCore(interp, objv[0], 1, &MakeProcError); - } else { + return Tcl_NRCallObjProc(interp, TclNRInterpProc, clientData, objc, objv); +} + +int +TclNRInterpProc( + ClientData clientData, /* Record describing procedure to be + * interpreted. */ + register Tcl_Interp *interp,/* Interpreter in which procedure was + * invoked. */ + int objc, /* Count of number of arguments to this + * procedure. */ + Tcl_Obj *const objv[]) /* Argument value objects. */ +{ + int result = PushProcCallFrame(clientData, interp, objc, objv, + /*isLambda*/ 0); + + if (result != TCL_OK) { return TCL_ERROR; } + return TclNRInterpProcCore(interp, objv[0], 1, &MakeProcError); } /* *---------------------------------------------------------------------- * - * TclObjInterpProcCore -- + * TclNRInterpProcCore -- * * When a Tcl procedure, lambda term or anything else that works like a * procedure gets invoked during bytecode evaluation, this object-based @@ -1673,23 +1721,29 @@ TclObjInterpProc( */ int -TclObjInterpProcCore( +TclNRInterpProcCore( register Tcl_Interp *interp,/* Interpreter in which procedure was * invoked. */ Tcl_Obj *procNameObj, /* Procedure name for error reporting. */ int skip, /* Number of initial arguments to be skipped, * i.e., words in the "command name". */ - ProcErrorProc errorProc) /* How to convert results from the script into + ProcErrorProc *errorProc) /* How to convert results from the script into * results of the overall procedure. */ { Interp *iPtr = (Interp *) interp; register Proc *procPtr = iPtr->varFramePtr->procPtr; int result; CallFrame *freePtr; + ByteCode *codePtr; result = InitArgsAndLocals(interp, procNameObj, skip); if (result != TCL_OK) { - goto procDone; + freePtr = iPtr->framePtr; + Tcl_PopCallFrame(interp); /* Pop but do not free. */ + TclStackFree(interp, freePtr->compiledLocals); + /* Free compiledLocals. */ + TclStackFree(interp, freePtr); /* Free CallFrame. */ + return TCL_ERROR; } #if defined(TCL_COMPILE_DEBUG) @@ -1713,25 +1767,42 @@ TclObjInterpProcCore( #ifdef USE_DTRACE if (TCL_DTRACE_PROC_ARGS_ENABLED()) { - char *a[10]; - int i = 0; int l = iPtr->varFramePtr->isProcCallFrame & FRAME_IS_LAMBDA ? 1 : 0; + const char *a[10]; + int i; - while (i < 10) { + for (i = 0 ; i < 10 ; i++) { a[i] = (l < iPtr->varFramePtr->objc ? - TclGetString(iPtr->varFramePtr->objv[l]) : NULL); i++; l++; + TclGetString(iPtr->varFramePtr->objv[l]) : NULL); + l++; } TCL_DTRACE_PROC_ARGS(a[0], a[1], a[2], a[3], a[4], a[5], a[6], a[7], a[8], a[9]); } if (TCL_DTRACE_PROC_INFO_ENABLED() && iPtr->cmdFramePtr) { Tcl_Obj *info = TclInfoFrame(interp, iPtr->cmdFramePtr); - char *a[4]; int i[2]; + const char *a[6]; int i[2]; TclDTraceInfo(info, a, i); - TCL_DTRACE_PROC_INFO(a[0], a[1], a[2], a[3], i[0], i[1]); + TCL_DTRACE_PROC_INFO(a[0], a[1], a[2], a[3], i[0], i[1], a[4], a[5]); TclDecrRefCount(info); } + if (TCL_DTRACE_PROC_ENTRY_ENABLED()) { + int l = iPtr->varFramePtr->isProcCallFrame & FRAME_IS_LAMBDA ? 1 : 0; + + TCL_DTRACE_PROC_ENTRY(l < iPtr->varFramePtr->objc ? + TclGetString(iPtr->varFramePtr->objv[l]) : NULL, + iPtr->varFramePtr->objc - l - 1, + (Tcl_Obj **)(iPtr->varFramePtr->objv + l + 1)); + } + if (TCL_DTRACE_PROC_ENTRY_ENABLED()) { + int l = iPtr->varFramePtr->isProcCallFrame & FRAME_IS_LAMBDA ? 1 : 0; + + TCL_DTRACE_PROC_ENTRY(l < iPtr->varFramePtr->objc ? + TclGetString(iPtr->varFramePtr->objv[l]) : NULL, + iPtr->varFramePtr->objc - l - 1, + (Tcl_Obj **)(iPtr->varFramePtr->objv + l + 1)); + } #endif /* USE_DTRACE */ /* @@ -1739,38 +1810,32 @@ TclObjInterpProcCore( */ procPtr->refCount++; - iPtr->numLevels++; + codePtr = procPtr->bodyPtr->internalRep.otherValuePtr; - if (TclInterpReady(interp) == TCL_ERROR) { - result = TCL_ERROR; - } else { - register ByteCode *codePtr = - procPtr->bodyPtr->internalRep.otherValuePtr; + TclNRAddCallback(interp, InterpProcNR2, procNameObj, errorProc, + NULL, NULL); + return TclNRExecuteByteCode(interp, codePtr); +} - codePtr->refCount++; -#ifdef USE_DTRACE - if (TCL_DTRACE_PROC_ENTRY_ENABLED()) { - int l; +static int +InterpProcNR2( + ClientData data[], + Tcl_Interp *interp, + int result) +{ + Interp *iPtr = (Interp *) interp; + Proc *procPtr = iPtr->varFramePtr->procPtr; + CallFrame *freePtr; + Tcl_Obj *procNameObj = data[0]; + ProcErrorProc *errorProc = (ProcErrorProc *)data[1]; - l = iPtr->varFramePtr->isProcCallFrame & FRAME_IS_LAMBDA ? 2 : 1; - TCL_DTRACE_PROC_ENTRY(TclGetString(procNameObj), - iPtr->varFramePtr->objc - l, - (Tcl_Obj **)(iPtr->varFramePtr->objv + l)); - } -#endif /* USE_DTRACE */ - result = TclExecuteByteCode(interp, codePtr); - if (TCL_DTRACE_PROC_RETURN_ENABLED()) { - TCL_DTRACE_PROC_RETURN(TclGetString(procNameObj), result); - } - codePtr->refCount--; - if (codePtr->refCount <= 0) { - TclCleanupByteCode(codePtr); - } - } + if (TCL_DTRACE_PROC_RETURN_ENABLED()) { + int l = iPtr->varFramePtr->isProcCallFrame & FRAME_IS_LAMBDA ? 1 : 0; - iPtr->numLevels--; - procPtr->refCount--; - if (procPtr->refCount <= 0) { + TCL_DTRACE_PROC_RETURN(l < iPtr->varFramePtr->objc ? + TclGetString(iPtr->varFramePtr->objv[l]) : NULL, result); + } + if (--procPtr->refCount <= 0) { TclProcCleanupProc(procPtr); } @@ -1811,7 +1876,7 @@ TclObjInterpProcCore( * function handed to us as an argument. */ - (*errorProc)(interp, procNameObj); + errorProc(interp, procNameObj); default: /* @@ -1828,17 +1893,15 @@ TclObjInterpProcCore( (void) 0; /* do nothing */ } -#ifdef USE_DTRACE if (TCL_DTRACE_PROC_RESULT_ENABLED()) { - Tcl_Obj *r; + int l = iPtr->varFramePtr->isProcCallFrame & FRAME_IS_LAMBDA ? 1 : 0; + Tcl_Obj *r = Tcl_GetObjResult(interp); - r = Tcl_GetObjResult(interp); - TCL_DTRACE_PROC_RESULT(TclGetString(procNameObj), result, + TCL_DTRACE_PROC_RESULT(l < iPtr->varFramePtr->objc ? + TclGetString(iPtr->varFramePtr->objv[l]) : NULL, result, TclGetString(r), r); } -#endif /* USE_DTRACE */ - procDone: /* * Free the stack-allocated compiled locals and CallFrame. It is important * to pop the call frame without freeing it first: the compiledLocals @@ -1852,6 +1915,7 @@ TclObjInterpProcCore( TclStackFree(interp, freePtr->compiledLocals); /* Free compiledLocals. */ TclStackFree(interp, freePtr); /* Free CallFrame. */ + return result; } @@ -1880,34 +1944,15 @@ TclProcCompileProc( Tcl_Interp *interp, /* Interpreter containing procedure. */ Proc *procPtr, /* Data associated with procedure. */ Tcl_Obj *bodyPtr, /* Body of proc. (Usually procPtr->bodyPtr, - * but could be any code fragment compiled in - * the context of this procedure.) */ + * but could be any code fragment compiled in + * the context of this procedure.) */ Namespace *nsPtr, /* Namespace containing procedure. */ - CONST char *description, /* string describing this body of code. */ - CONST char *procName) /* Name of this procedure. */ -{ - return ProcCompileProc(interp, procPtr, bodyPtr, nsPtr, description, - procName, NULL); -} - -static int -ProcCompileProc( - Tcl_Interp *interp, /* Interpreter containing procedure. */ - Proc *procPtr, /* Data associated with procedure. */ - Tcl_Obj *bodyPtr, /* Body of proc. (Usually procPtr->bodyPtr, - * but could be any code fragment compiled in - * the context of this procedure.) */ - Namespace *nsPtr, /* Namespace containing procedure. */ - CONST char *description, /* string describing this body of code. */ - CONST char *procName, /* Name of this procedure. */ - Proc **procPtrPtr) /* Points to storage where a replacement - * (Proc *) value may be written. */ + const char *description, /* string describing this body of code. */ + const char *procName) /* Name of this procedure. */ { Interp *iPtr = (Interp *) interp; - int i; Tcl_CallFrame *framePtr; ByteCode *codePtr = bodyPtr->internalRep.otherValuePtr; - CompiledLocal *localPtr; /* * If necessary, compile the procedure's body. The compiler will allocate @@ -1924,35 +1969,36 @@ ProcCompileProc( */ if (bodyPtr->typePtr == &tclByteCodeType) { - if (((Interp *) *codePtr->interpHandle == iPtr) + if (((Interp *) *codePtr->interpHandle == iPtr) && (codePtr->compileEpoch == iPtr->compileEpoch) && (codePtr->nsPtr == nsPtr) && (codePtr->nsEpoch == nsPtr->resolverEpoch)) { return TCL_OK; - } else { - if (codePtr->flags & TCL_BYTECODE_PRECOMPILED) { - if ((Interp *) *codePtr->interpHandle != iPtr) { - Tcl_AppendResult(interp, - "a precompiled script jumped interps", NULL); - return TCL_ERROR; - } - codePtr->compileEpoch = iPtr->compileEpoch; - codePtr->nsPtr = nsPtr; - } else { - bodyPtr->typePtr->freeIntRepProc(bodyPtr); - bodyPtr->typePtr = NULL; + } + + if (codePtr->flags & TCL_BYTECODE_PRECOMPILED) { + if ((Interp *) *codePtr->interpHandle != iPtr) { + Tcl_AppendResult(interp, + "a precompiled script jumped interps", NULL); + return TCL_ERROR; } - } + codePtr->compileEpoch = iPtr->compileEpoch; + codePtr->nsPtr = nsPtr; + } else { + bodyPtr->typePtr->freeIntRepProc(bodyPtr); + bodyPtr->typePtr = NULL; + } } + if (bodyPtr->typePtr != &tclByteCodeType) { Tcl_HashEntry *hePtr; #ifdef TCL_COMPILE_DEBUG - if (tclTraceCompile >= 1) { - /* - * Display a line summarizing the top level command we are about - * to compile. - */ + if (tclTraceCompile >= 1) { + /* + * Display a line summarizing the top level command we are about + * to compile. + */ Tcl_Obj *message; @@ -1960,85 +2006,50 @@ ProcCompileProc( Tcl_IncrRefCount(message); Tcl_AppendStringsToObj(message, description, " \"", NULL); Tcl_AppendLimitedToObj(message, procName, -1, 50, NULL); - fprintf(stdout, "%s\"\n", TclGetString(message)); + fprintf(stdout, "%s\"\n", TclGetString(message)); Tcl_DecrRefCount(message); - } + } #endif - /* - * Plug the current procPtr into the interpreter and coerce the code - * body to byte codes. The interpreter needs to know which proc it's - * compiling so that it can access its list of compiled locals. - * - * TRICKY NOTE: Be careful to push a call frame with the proper - * namespace context, so that the byte codes are compiled in the - * appropriate class context. - */ - - if (procPtrPtr != NULL && procPtr->refCount > 1) { - Tcl_Command token; - Tcl_CmdInfo info; - Proc *newProc = (Proc *) ckalloc(sizeof(Proc)); - - newProc->iPtr = procPtr->iPtr; - newProc->refCount = 1; - newProc->cmdPtr = procPtr->cmdPtr; - token = (Tcl_Command) newProc->cmdPtr; - newProc->bodyPtr = Tcl_DuplicateObj(bodyPtr); - bodyPtr = newProc->bodyPtr; - Tcl_IncrRefCount(bodyPtr); - newProc->numArgs = procPtr->numArgs; - - newProc->numCompiledLocals = newProc->numArgs; - newProc->firstLocalPtr = NULL; - newProc->lastLocalPtr = NULL; - localPtr = procPtr->firstLocalPtr; - for (i=0; i<newProc->numArgs; i++, localPtr=localPtr->nextPtr) { - CompiledLocal *copy = (CompiledLocal *) ckalloc((unsigned) - (sizeof(CompiledLocal) - sizeof(localPtr->name) - + localPtr->nameLength + 1)); - - if (newProc->firstLocalPtr == NULL) { - newProc->firstLocalPtr = newProc->lastLocalPtr = copy; - } else { - newProc->lastLocalPtr->nextPtr = copy; - newProc->lastLocalPtr = copy; - } - copy->nextPtr = NULL; - copy->nameLength = localPtr->nameLength; - copy->frameIndex = localPtr->frameIndex; - copy->flags = localPtr->flags; - copy->defValuePtr = localPtr->defValuePtr; - if (copy->defValuePtr) { - Tcl_IncrRefCount(copy->defValuePtr); - } - copy->resolveInfo = localPtr->resolveInfo; - memcpy(copy->name, localPtr->name, localPtr->nameLength + 1); - } + /* + * Plug the current procPtr into the interpreter and coerce the code + * body to byte codes. The interpreter needs to know which proc it's + * compiling so that it can access its list of compiled locals. + * + * TRICKY NOTE: Be careful to push a call frame with the proper + * namespace context, so that the byte codes are compiled in the + * appropriate class context. + */ - /* - * Reset the ClientData - */ + iPtr->compiledProcPtr = procPtr; - Tcl_GetCommandInfoFromToken(token, &info); - if (info.objClientData == (ClientData) procPtr) { - info.objClientData = (ClientData) newProc; - } - if (info.clientData == (ClientData) procPtr) { - info.clientData = (ClientData) newProc; + if (procPtr->numCompiledLocals > procPtr->numArgs) { + CompiledLocal *clPtr = procPtr->firstLocalPtr; + CompiledLocal *lastPtr = NULL; + int i, numArgs = procPtr->numArgs; + + for (i = 0; i < numArgs; i++) { + lastPtr = clPtr; + clPtr = clPtr->nextPtr; } - if (info.deleteData == (ClientData) procPtr) { - info.deleteData = (ClientData) newProc; + + if (lastPtr) { + lastPtr->nextPtr = NULL; + } else { + procPtr->firstLocalPtr = NULL; } - Tcl_SetCommandInfoFromToken(token, &info); + procPtr->lastLocalPtr = lastPtr; + while (clPtr) { + CompiledLocal *toFree = clPtr; - procPtr->refCount--; - *procPtrPtr = procPtr = newProc; + clPtr = clPtr->nextPtr; + ckfree(toFree); + } + procPtr->numCompiledLocals = procPtr->numArgs; } - iPtr->compiledProcPtr = procPtr; - (void) TclPushStackFrame(interp, &framePtr, - (Tcl_Namespace *) nsPtr, /* isProcCallFrame */ 0); + TclPushStackFrame(interp, &framePtr, (Tcl_Namespace *) nsPtr, + /* isProcCallFrame */ 0); /* * TIP #280: We get the invoking context from the cmdFrame which @@ -2052,9 +2063,8 @@ ProcCompileProc( */ iPtr->invokeWord = 0; - iPtr->invokeCmdFramePtr = - (hePtr ? (CmdFrame *) Tcl_GetHashValue(hePtr) : NULL); - (void) tclByteCodeType.setFromAnyProc(interp, bodyPtr); + iPtr->invokeCmdFramePtr = (hePtr ? Tcl_GetHashValue(hePtr) : NULL); + tclByteCodeType.setFromAnyProc(interp, bodyPtr); iPtr->invokeCmdFramePtr = NULL; TclPopStackFrame(interp); } else if (codePtr->nsEpoch != nsPtr->resolverEpoch) { @@ -2101,7 +2111,7 @@ MakeProcError( Tcl_AppendObjToErrorInfo(interp, Tcl_ObjPrintf( "\n (procedure \"%.*s%s\" line %d)", (overflow ? limit : nameLen), procName, - (overflow ? "..." : ""), interp->errorLine)); + (overflow ? "..." : ""), Tcl_GetErrorLine(interp))); } /* @@ -2128,7 +2138,7 @@ void TclProcDeleteProc( ClientData clientData) /* Procedure to be deleted. */ { - Proc *procPtr = (Proc *) clientData; + Proc *procPtr = clientData; procPtr->refCount--; if (procPtr->refCount <= 0) { @@ -2174,9 +2184,9 @@ TclProcCleanupProc( resVarInfo = localPtr->resolveInfo; if (resVarInfo) { if (resVarInfo->deleteProc) { - (*resVarInfo->deleteProc)(resVarInfo); + resVarInfo->deleteProc(resVarInfo); } else { - ckfree((char *) resVarInfo); + ckfree(resVarInfo); } } @@ -2184,16 +2194,15 @@ TclProcCleanupProc( defPtr = localPtr->defValuePtr; Tcl_DecrRefCount(defPtr); } - ckfree((char *) localPtr); + ckfree(localPtr); localPtr = nextPtr; } - ckfree((char *) procPtr); + ckfree(procPtr); /* * TIP #280: Release the location data associated with this Proc * structure, if any. The interpreter may not exist (For example for - * procbody structures created by tbcload. See also Tcl_ProcObjCmd(), when - * the same ProcPtr is overwritten with a new CmdFrame. + * procbody structures created by tbcload. */ if (!iPtr) { @@ -2205,15 +2214,15 @@ TclProcCleanupProc( return; } - cfPtr = (CmdFrame *) Tcl_GetHashValue(hePtr); + cfPtr = Tcl_GetHashValue(hePtr); if (cfPtr->type == TCL_LOCATION_SOURCE) { Tcl_DecrRefCount(cfPtr->data.eval.path); cfPtr->data.eval.path = NULL; } - ckfree((char *) cfPtr->line); + ckfree(cfPtr->line); cfPtr->line = NULL; - ckfree((char *) cfPtr); + ckfree(cfPtr); Tcl_DeleteHashEntry(hePtr); } @@ -2434,6 +2443,7 @@ FreeLambdaInternalRep( TclProcCleanupProc(procPtr); } TclDecrRefCount(nsObjPtr); + objPtr->typePtr = NULL; } static int @@ -2442,7 +2452,7 @@ SetLambdaFromAny( register Tcl_Obj *objPtr) /* The object to convert. */ { Interp *iPtr = (Interp *) interp; - char *name; + const char *name; Tcl_Obj *argsPtr, *bodyPtr, *nsObjPtr, **objv, *errPtr; int objc, result; Proc *procPtr; @@ -2506,11 +2516,9 @@ SetLambdaFromAny( */ if (iPtr->cmdFramePtr) { - CmdFrame *contextPtr; + CmdFrame *contextPtr = TclStackAlloc(interp, sizeof(CmdFrame)); - contextPtr = (CmdFrame *) TclStackAlloc(interp, sizeof(CmdFrame)); *contextPtr = *iPtr->cmdFramePtr; - if (contextPtr->type == TCL_LOCATION_BC) { /* * Retrieve the source context from the bytecode. This call @@ -2538,7 +2546,7 @@ SetLambdaFromAny( if (contextPtr->line && (contextPtr->nline >= 2) && (contextPtr->line[1] >= 0)) { int isNew, buf[2]; - CmdFrame *cfPtr = (CmdFrame *) ckalloc(sizeof(CmdFrame)); + CmdFrame *cfPtr = ckalloc(sizeof(CmdFrame)); /* * Move from approximation (line of list cmd word) to actual @@ -2549,7 +2557,7 @@ SetLambdaFromAny( cfPtr->level = -1; cfPtr->type = contextPtr->type; - cfPtr->line = (int *) ckalloc(sizeof(int)); + cfPtr->line = ckalloc(sizeof(int)); cfPtr->line[0] = buf[1]; cfPtr->nline = 1; cfPtr->framePtr = NULL; @@ -2562,7 +2570,7 @@ SetLambdaFromAny( cfPtr->cmd.str.len = 0; Tcl_SetHashValue(Tcl_CreateHashEntry(iPtr->linePBodyPtr, - (char *) procPtr, &isNew), cfPtr); + procPtr, &isNew), cfPtr); } /* @@ -2583,7 +2591,7 @@ SetLambdaFromAny( if (objc == 2) { TclNewLiteralStringObj(nsObjPtr, "::"); } else { - char *nsName = TclGetString(objv[2]); + const char *nsName = TclGetString(objv[2]); if ((*nsName != ':') || (*(nsName+1) != ':')) { TclNewLiteralStringObj(nsObjPtr, "::"); @@ -2631,18 +2639,27 @@ Tcl_ApplyObjCmd( ClientData dummy, /* Not used. */ Tcl_Interp *interp, /* Current interpreter. */ int objc, /* Number of arguments. */ - Tcl_Obj *CONST objv[]) /* Argument objects. */ + Tcl_Obj *const objv[]) /* Argument objects. */ +{ + return Tcl_NRCallObjProc(interp, TclNRApplyObjCmd, dummy, objc, objv); +} + +int +TclNRApplyObjCmd( + ClientData dummy, /* Not used. */ + Tcl_Interp *interp, /* Current interpreter. */ + int objc, /* Number of arguments. */ + Tcl_Obj *const objv[]) /* Argument objects. */ { Interp *iPtr = (Interp *) interp; Proc *procPtr = NULL; Tcl_Obj *lambdaPtr, *nsObjPtr; int result, isRootEnsemble; - Command cmd; Tcl_Namespace *nsPtr; - ExtraFrameInfo efi; + ApplyExtraData *extraPtr; if (objc < 2) { - Tcl_WrongNumArgs(interp, 1, objv, "lambdaExpr ?arg1 arg2 ...?"); + Tcl_WrongNumArgs(interp, 1, objv, "lambdaExpr ?arg ...?"); return TCL_ERROR; } @@ -2657,6 +2674,12 @@ Tcl_ApplyObjCmd( } #define JOE_EXTENSION 0 +/* + * Note: this code is NOT FUNCTIONAL due to the NR implementation; DO NOT + * ENABLE! Leaving here as reminder to (a) TIP the suggestion, and (b) adapt + * the code. (MS) + */ + #if JOE_EXTENSION else { /* @@ -2683,25 +2706,6 @@ Tcl_ApplyObjCmd( procPtr = lambdaPtr->internalRep.twoPtrValue.ptr1; } - memset(&cmd, 0, sizeof(Command)); - procPtr->cmdPtr = &cmd; - - /* - * TIP#280 (semi-)HACK! - * - * Using cmd.clientData to tell [info frame] how to render the - * 'lambdaPtr'. The InfoFrameCmd will detect this case by testing cmd.hPtr - * for NULL. This condition holds here because of the 'memset' above, and - * nowhere else (in the core). Regular commands always have a valid - * 'hPtr', and lambda's never. - */ - - efi.length = 1; - efi.fields[0].name = "lambda"; - efi.fields[0].proc = NULL; - efi.fields[0].clientData = lambdaPtr; - cmd.clientData = &efi; - /* * Find the namespace where this lambda should run, and push a call frame * for that namespace. Note that TclObjInterpProc() will pop it. @@ -2710,10 +2714,29 @@ Tcl_ApplyObjCmd( nsObjPtr = lambdaPtr->internalRep.twoPtrValue.ptr2; result = TclGetNamespaceFromObj(interp, nsObjPtr, &nsPtr); if (result != TCL_OK) { - return result; + return TCL_ERROR; } - cmd.nsPtr = (Namespace *) nsPtr; + extraPtr = TclStackAlloc(interp, sizeof(ApplyExtraData)); + memset(&extraPtr->cmd, 0, sizeof(Command)); + procPtr->cmdPtr = &extraPtr->cmd; + extraPtr->cmd.nsPtr = (Namespace *) nsPtr; + + /* + * TIP#280 (semi-)HACK! + * + * Using cmd.clientData to tell [info frame] how to render the lambdaPtr. + * The InfoFrameCmd will detect this case by testing cmd.hPtr for NULL. + * This condition holds here because of the memset() above, and nowhere + * else (in the core). Regular commands always have a valid hPtr, and + * lambda's never. + */ + + extraPtr->efi.length = 1; + extraPtr->efi.fields[0].name = "lambda"; + extraPtr->efi.fields[0].proc = NULL; + extraPtr->efi.fields[0].clientData = lambdaPtr; + extraPtr->cmd.clientData = &extraPtr->efi; isRootEnsemble = (iPtr->ensembleRewrite.sourceObjs == NULL); if (isRootEnsemble) { @@ -2723,18 +2746,29 @@ Tcl_ApplyObjCmd( } else { iPtr->ensembleRewrite.numInsertedObjs -= 1; } + extraPtr->isRootEnsemble = isRootEnsemble; - result = PushProcCallFrame((ClientData) procPtr, interp, objc, objv, 1); + result = PushProcCallFrame(procPtr, interp, objc, objv, 1); if (result == TCL_OK) { - result = TclObjInterpProcCore(interp, objv[1], 2, &MakeLambdaError); + TclNRAddCallback(interp, ApplyNR2, extraPtr, NULL, NULL, NULL); + result = TclNRInterpProcCore(interp, objv[1], 2, &MakeLambdaError); } + return result; +} - if (isRootEnsemble) { - iPtr->ensembleRewrite.sourceObjs = NULL; - iPtr->ensembleRewrite.numRemovedObjs = 0; - iPtr->ensembleRewrite.numInsertedObjs = 0; +static int +ApplyNR2( + ClientData data[], + Tcl_Interp *interp, + int result) +{ + ApplyExtraData *extraPtr = data[0]; + + if (extraPtr->isRootEnsemble) { + ((Interp *) interp)->ensembleRewrite.sourceObjs = NULL; } + TclStackFree(interp, extraPtr); return result; } @@ -2770,10 +2804,9 @@ MakeLambdaError( Tcl_AppendObjToErrorInfo(interp, Tcl_ObjPrintf( "\n (lambda term \"%.*s%s\" line %d)", (overflow ? limit : nameLen), procName, - (overflow ? "..." : ""), interp->errorLine)); + (overflow ? "..." : ""), Tcl_GetErrorLine(interp))); } - /* *---------------------------------------------------------------------- * @@ -2792,18 +2825,23 @@ Tcl_DisassembleObjCmd( ClientData dummy, /* Not used. */ Tcl_Interp *interp, /* Current interpreter. */ int objc, /* Number of arguments. */ - Tcl_Obj *CONST objv[]) /* Argument objects. */ + Tcl_Obj *const objv[]) /* Argument objects. */ { - static const char *types[] = { - "lambda", "proc", "script", NULL + static const char *const types[] = { + "lambda", "method", "objmethod", "proc", "script", NULL }; enum Types { - DISAS_LAMBDA, DISAS_PROC, DISAS_SCRIPT + DISAS_LAMBDA, DISAS_CLASS_METHOD, DISAS_OBJECT_METHOD, DISAS_PROC, + DISAS_SCRIPT }; int idx, result; + Tcl_Obj *codeObjPtr = NULL; + Proc *procPtr = NULL; + Tcl_HashEntry *hPtr; + Object *oPtr; - if (objc != 3) { - Tcl_WrongNumArgs(interp, 1, objv, "type procName|lambdaTerm|script"); + if (objc < 2) { + Tcl_WrongNumArgs(interp, 1, objv, "type ..."); return TCL_ERROR; } if (Tcl_GetIndexFromObj(interp, objv[1], types, "type", 0, &idx)!=TCL_OK){ @@ -2812,7 +2850,6 @@ Tcl_DisassembleObjCmd( switch ((enum Types) idx) { case DISAS_LAMBDA: { - Proc *procPtr = NULL; Command cmd; Tcl_Obj *nsObjPtr; Tcl_Namespace *nsPtr; @@ -2821,6 +2858,10 @@ Tcl_DisassembleObjCmd( * Compile (if uncompiled) and disassemble a lambda term. */ + if (objc != 3) { + Tcl_WrongNumArgs(interp, 2, objv, "lambdaTerm"); + return TCL_ERROR; + } if (objv[2]->typePtr == &lambdaType) { procPtr = objv[2]->internalRep.twoPtrValue.ptr1; } @@ -2845,55 +2886,142 @@ Tcl_DisassembleObjCmd( return result; } TclPopStackFrame(interp); - if (((ByteCode *) procPtr->bodyPtr->internalRep.otherValuePtr)->flags - & TCL_BYTECODE_PRECOMPILED) { - Tcl_AppendResult(interp, "may not disassemble prebuilt bytecode", - NULL); + codeObjPtr = procPtr->bodyPtr; + break; + } + case DISAS_PROC: + if (objc != 3) { + Tcl_WrongNumArgs(interp, 2, objv, "procName"); return TCL_ERROR; + } else { + procPtr = TclFindProc((Interp *) interp, TclGetString(objv[2])); + if (procPtr == NULL) { + Tcl_AppendResult(interp, "\"", TclGetString(objv[2]), + "\" isn't a procedure", NULL); + return TCL_ERROR; + } + + /* + * Compile (if uncompiled) and disassemble a procedure. + */ + + result = PushProcCallFrame(procPtr, interp, 2, objv+1, 1); + if (result != TCL_OK) { + return result; + } + TclPopStackFrame(interp); + codeObjPtr = procPtr->bodyPtr; + break; + } + case DISAS_SCRIPT: + /* + * Compile and disassemble a script. + */ + + if (objc != 3) { + Tcl_WrongNumArgs(interp, 2, objv, "script"); + return TCL_ERROR; + } + if (objv[2]->typePtr != &tclByteCodeType) { + if (TclSetByteCodeFromAny(interp, objv[2], NULL, NULL) != TCL_OK){ + return TCL_ERROR; + } } - Tcl_SetObjResult(interp, TclDisassembleByteCodeObj(procPtr->bodyPtr)); + codeObjPtr = objv[2]; break; - } - case DISAS_PROC: { - Proc *procPtr = TclFindProc((Interp *) interp, TclGetString(objv[2])); - if (procPtr == NULL) { - Tcl_AppendResult(interp, "\"", TclGetString(objv[2]), - "\" isn't a procedure", NULL); + case DISAS_CLASS_METHOD: + if (objc != 4) { + Tcl_WrongNumArgs(interp, 2, objv, "className methodName"); return TCL_ERROR; } /* - * Compile (if uncompiled) and disassemble a procedure. + * Look up the body of a class method. */ - result = PushProcCallFrame(procPtr, interp, 2, objv+1, 1); - if (result != TCL_OK) { - return result; + oPtr = (Object *) Tcl_GetObjectFromObj(interp, objv[2]); + if (oPtr == NULL) { + return TCL_ERROR; } - TclPopStackFrame(interp); - if (((ByteCode *) procPtr->bodyPtr->internalRep.otherValuePtr)->flags - & TCL_BYTECODE_PRECOMPILED) { - Tcl_AppendResult(interp, "may not disassemble prebuilt bytecode", - NULL); + if (oPtr->classPtr == NULL) { + Tcl_AppendResult(interp, "\"", TclGetString(objv[2]), + "\" is not a class", NULL); return TCL_ERROR; } - Tcl_SetObjResult(interp, TclDisassembleByteCodeObj(procPtr->bodyPtr)); - break; - } - case DISAS_SCRIPT: + hPtr = Tcl_FindHashEntry(&oPtr->classPtr->classMethods, + (char *) objv[3]); + goto methodBody; + case DISAS_OBJECT_METHOD: + if (objc != 4) { + Tcl_WrongNumArgs(interp, 2, objv, "objectName methodName"); + return TCL_ERROR; + } + /* - * Compile and disassemble a script. + * Look up the body of an instance method. */ - if (objv[2]->typePtr != &tclByteCodeType) { - if (TclSetByteCodeFromAny(interp, objv[2], NULL, NULL) != TCL_OK){ - return TCL_ERROR; + oPtr = (Object *) Tcl_GetObjectFromObj(interp, objv[2]); + if (oPtr == NULL) { + return TCL_ERROR; + } + if (oPtr->methodsPtr == NULL) { + goto unknownMethod; + } + hPtr = Tcl_FindHashEntry(oPtr->methodsPtr, (char *) objv[3]); + + /* + * Compile (if necessary) and disassemble a method body. + */ + + methodBody: + if (hPtr == NULL) { + unknownMethod: + Tcl_AppendResult(interp, "unknown method \"", + TclGetString(objv[3]), "\"", NULL); + return TCL_ERROR; + } + procPtr = TclOOGetProcFromMethod(Tcl_GetHashValue(hPtr)); + if (procPtr == NULL) { + Tcl_AppendResult(interp, + "body not available for this kind of method", NULL); + return TCL_ERROR; + } + if (procPtr->bodyPtr->typePtr != &tclByteCodeType) { + Command cmd; + + /* + * Yes, this is ugly, but we need to pass the namespace in to the + * compiler in two places. + */ + + cmd.nsPtr = (Namespace *) oPtr->namespacePtr; + procPtr->cmdPtr = &cmd; + result = TclProcCompileProc(interp, procPtr, procPtr->bodyPtr, + (Namespace *) oPtr->namespacePtr, "body of method", + TclGetString(objv[3])); + procPtr->cmdPtr = NULL; + if (result != TCL_OK) { + return result; } } - Tcl_SetObjResult(interp, TclDisassembleByteCodeObj(objv[2])); + codeObjPtr = procPtr->bodyPtr; break; + default: + CLANG_ASSERT(0); + } + + /* + * Do the actual disassembly. + */ + + if (((ByteCode *) codeObjPtr->internalRep.otherValuePtr)->flags + & TCL_BYTECODE_PRECOMPILED) { + Tcl_AppendResult(interp,"may not disassemble prebuilt bytecode",NULL); + return TCL_ERROR; } + Tcl_SetObjResult(interp, TclDisassembleByteCodeObj(codeObjPtr)); return TCL_OK; } |