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-rw-r--r--generic/tclCompCmds.c435
1 files changed, 157 insertions, 278 deletions
diff --git a/generic/tclCompCmds.c b/generic/tclCompCmds.c
index c8ca828..6821637 100644
--- a/generic/tclCompCmds.c
+++ b/generic/tclCompCmds.c
@@ -152,6 +152,8 @@ static void FreeJumptableInfo(ClientData clientData);
static void PrintJumptableInfo(ClientData clientData,
Tcl_Obj *appendObj, ByteCode *codePtr,
unsigned int pcOffset);
+static int GetLocalScalarIndex(Tcl_Token *tokenPtr,
+ CompileEnv *envPtr, int *indexPtr);
static int PushVarName(Tcl_Interp *interp,
Tcl_Token *varTokenPtr, CompileEnv *envPtr,
int flags, int *localIndexPtr,
@@ -379,8 +381,7 @@ TclCompileCatchCmd(
{
JumpFixup jumpFixup;
Tcl_Token *cmdTokenPtr, *resultNameTokenPtr, *optsNameTokenPtr;
- const char *name;
- int resultIndex, optsIndex, nameChars, range;
+ int resultIndex, optsIndex, range;
int initStackDepth = envPtr->currStackDepth;
int savedStackDepth;
DefineLineInformation; /* TIP #280 */
@@ -395,15 +396,6 @@ TclCompileCatchCmd(
}
/*
- * If variables were specified and the catch command is at global level
- * (not in a procedure), don't compile it inline: the payoff is too small.
- */
-
- if ((parsePtr->numWords >= 3) && (envPtr->procPtr == NULL)) {
- return TCL_ERROR;
- }
-
- /*
* Make sure the variable names, if any, have no substitutions and just
* refer to local scalars.
*/
@@ -412,36 +404,13 @@ TclCompileCatchCmd(
cmdTokenPtr = TokenAfter(parsePtr->tokenPtr);
if (parsePtr->numWords >= 3) {
resultNameTokenPtr = TokenAfter(cmdTokenPtr);
- /* DGP */
- if (resultNameTokenPtr->type != TCL_TOKEN_SIMPLE_WORD) {
- return TCL_ERROR;
- }
-
- name = resultNameTokenPtr[1].start;
- nameChars = resultNameTokenPtr[1].size;
- if (!TclIsLocalScalar(name, nameChars)) {
- return TCL_ERROR;
- }
- resultIndex = TclFindCompiledLocal(resultNameTokenPtr[1].start,
- resultNameTokenPtr[1].size, /*create*/ 1, envPtr->procPtr);
- if (resultIndex < 0) {
+ if (!GetLocalScalarIndex(resultNameTokenPtr, envPtr, &resultIndex)) {
return TCL_ERROR;
}
- /* DKF */
if (parsePtr->numWords == 4) {
optsNameTokenPtr = TokenAfter(resultNameTokenPtr);
- if (optsNameTokenPtr->type != TCL_TOKEN_SIMPLE_WORD) {
- return TCL_ERROR;
- }
- name = optsNameTokenPtr[1].start;
- nameChars = optsNameTokenPtr[1].size;
- if (!TclIsLocalScalar(name, nameChars)) {
- return TCL_ERROR;
- }
- optsIndex = TclFindCompiledLocal(optsNameTokenPtr[1].start,
- optsNameTokenPtr[1].size, /*create*/ 1, envPtr->procPtr);
- if (optsIndex < 0) {
+ if (!GetLocalScalarIndex(optsNameTokenPtr, envPtr, &optsIndex)) {
return TCL_ERROR;
}
}
@@ -682,18 +651,15 @@ TclCompileDictSetCmd(
* compiled. */
CompileEnv *envPtr) /* Holds resulting instructions. */
{
- Tcl_Token *tokenPtr;
- Proc *procPtr = envPtr->procPtr;
+ Tcl_Token *tokenPtr, *varTokenPtr;
+ int i, dictVarIndex;
DefineLineInformation; /* TIP #280 */
- Tcl_Token *varTokenPtr;
- int i, dictVarIndex, nameChars;
- const char *name;
/*
- * There must be at least one argument after the command.
+ * There must be at least three arguments after the (sub-)command.
*/
- if (parsePtr->numWords < 4 || procPtr == NULL) {
+ if (parsePtr->numWords < 4) {
return TCL_ERROR;
}
@@ -704,15 +670,9 @@ TclCompileDictSetCmd(
*/
varTokenPtr = TokenAfter(parsePtr->tokenPtr);
- if (varTokenPtr->type != TCL_TOKEN_SIMPLE_WORD) {
- return TCL_ERROR;
- }
- name = varTokenPtr[1].start;
- nameChars = varTokenPtr[1].size;
- if (!TclIsLocalScalar(name, nameChars)) {
+ if (!GetLocalScalarIndex(varTokenPtr, envPtr, &dictVarIndex)) {
return TCL_ERROR;
}
- dictVarIndex = TclFindCompiledLocal(name, nameChars, 1, procPtr);
/*
* Remaining words (key path and value to set) can be handled normally.
@@ -742,20 +702,29 @@ TclCompileDictIncrCmd(
* compiled. */
CompileEnv *envPtr) /* Holds resulting instructions. */
{
- Proc *procPtr = envPtr->procPtr;
- DefineLineInformation; /* TIP #280 */
Tcl_Token *varTokenPtr, *keyTokenPtr;
- int dictVarIndex, nameChars, incrAmount;
- const char *name;
+ int dictVarIndex, incrAmount;
+ DefineLineInformation; /* TIP #280 */
/*
* There must be at least two arguments after the command.
*/
- if (parsePtr->numWords < 3 || parsePtr->numWords > 4 || procPtr == NULL) {
+ if (parsePtr->numWords < 3 || parsePtr->numWords > 4) {
return TCL_ERROR;
}
+
+ /*
+ * The dictionary variable must be a local scalar that is knowable at
+ * compile time; anything else exceeds the complexity of the opcode. So
+ * discover what the index is.
+ */
+
varTokenPtr = TokenAfter(parsePtr->tokenPtr);
+ if (!GetLocalScalarIndex(varTokenPtr, envPtr, &dictVarIndex)) {
+ return TCL_ERROR;
+ }
+
keyTokenPtr = TokenAfter(varTokenPtr);
/*
@@ -763,23 +732,12 @@ TclCompileDictIncrCmd(
*/
if (parsePtr->numWords == 4) {
- const char *word;
- int numBytes, code;
- Tcl_Token *incrTokenPtr;
- Tcl_Obj *intObj;
-
- incrTokenPtr = TokenAfter(keyTokenPtr);
- if (incrTokenPtr->type != TCL_TOKEN_SIMPLE_WORD) {
- return TCL_ERROR;
- }
- word = incrTokenPtr[1].start;
- numBytes = incrTokenPtr[1].size;
-
- intObj = Tcl_NewStringObj(word, numBytes);
- Tcl_IncrRefCount(intObj);
- code = TclGetIntFromObj(NULL, intObj, &incrAmount);
- TclDecrRefCount(intObj);
- if (code != TCL_OK) {
+ Tcl_Token *incrTokenPtr = TokenAfter(keyTokenPtr);
+ Tcl_Obj *intObj = Tcl_NewObj();
+ int fail = (!TclWordKnownAtCompileTime(incrTokenPtr, intObj)
+ || TCL_ERROR == TclGetIntFromObj(NULL, intObj, &incrAmount));
+ Tcl_DecrRefCount(intObj);
+ if (fail) {
return TCL_ERROR;
}
} else {
@@ -787,22 +745,6 @@ TclCompileDictIncrCmd(
}
/*
- * The dictionary variable must be a local scalar that is knowable at
- * compile time; anything else exceeds the complexity of the opcode. So
- * discover what the index is.
- */
-
- if (varTokenPtr->type != TCL_TOKEN_SIMPLE_WORD) {
- return TCL_ERROR;
- }
- name = varTokenPtr[1].start;
- nameChars = varTokenPtr[1].size;
- if (!TclIsLocalScalar(name, nameChars)) {
- return TCL_ERROR;
- }
- dictVarIndex = TclFindCompiledLocal(name, nameChars, 1, procPtr);
-
- /*
* Emit the key and the code to actually do the increment.
*/
@@ -857,19 +799,20 @@ TclCompileDictForCmd(
CompileEnv *envPtr) /* Holds resulting instructions. */
{
Proc *procPtr = envPtr->procPtr;
- DefineLineInformation; /* TIP #280 */
Tcl_Token *varsTokenPtr, *dictTokenPtr, *bodyTokenPtr;
- int keyVarIndex, valueVarIndex, nameChars, loopRange, catchRange;
+ int keyVarIndex, valueVarIndex, loopRange, catchRange;
int infoIndex, jumpDisplacement, bodyTargetOffset, emptyTargetOffset;
int numVars, endTargetOffset;
int savedStackDepth = envPtr->currStackDepth;
/* Needed because jumps confuse the stack
* space calculator. */
- const char **argv;
- Tcl_DString buffer;
+ Tcl_Obj *varNameObj, *varListObj = NULL;
+ Tcl_Token token[2] = {{TCL_TOKEN_SIMPLE_WORD, NULL, 0, 1},
+ {TCL_TOKEN_TEXT, NULL, 0, 0}};
+ DefineLineInformation; /* TIP #280 */
/*
- * There must be at least three argument after the command.
+ * There must be exactly three arguments after the command.
*/
if (parsePtr->numWords != 4 || procPtr == NULL) {
@@ -879,8 +822,8 @@ TclCompileDictForCmd(
varsTokenPtr = TokenAfter(parsePtr->tokenPtr);
dictTokenPtr = TokenAfter(varsTokenPtr);
bodyTokenPtr = TokenAfter(dictTokenPtr);
- if (varsTokenPtr->type != TCL_TOKEN_SIMPLE_WORD ||
- bodyTokenPtr->type != TCL_TOKEN_SIMPLE_WORD) {
+
+ if (bodyTokenPtr->type != TCL_TOKEN_SIMPLE_WORD) {
return TCL_ERROR;
}
@@ -889,33 +832,29 @@ TclCompileDictForCmd(
* Then extract their indices in the LVT.
*/
- Tcl_DStringInit(&buffer);
- Tcl_DStringAppend(&buffer, varsTokenPtr[1].start, varsTokenPtr[1].size);
- if (Tcl_SplitList(NULL, Tcl_DStringValue(&buffer), &numVars,
- &argv) != TCL_OK) {
- Tcl_DStringFree(&buffer);
- return TCL_ERROR;
- }
- Tcl_DStringFree(&buffer);
- if (numVars != 2) {
- ckfree((char *) argv);
+ varListObj = Tcl_NewObj();
+ if (!TclWordKnownAtCompileTime(varsTokenPtr, varListObj) ||
+ TCL_OK != Tcl_ListObjLength(NULL, varListObj, &numVars) ||
+ numVars != 2) {
+ Tcl_DecrRefCount(varListObj);
return TCL_ERROR;
}
- nameChars = strlen(argv[0]);
- if (!TclIsLocalScalar(argv[0], nameChars)) {
- ckfree((char *) argv);
+ Tcl_ListObjIndex(NULL, varListObj, 0, &varNameObj);
+ token[1].start = Tcl_GetStringFromObj(varNameObj, &token[1].size);
+ if (!GetLocalScalarIndex(token, envPtr, &keyVarIndex)) {
+ Tcl_DecrRefCount(varListObj);
return TCL_ERROR;
}
- keyVarIndex = TclFindCompiledLocal(argv[0], nameChars, 1, procPtr);
- nameChars = strlen(argv[1]);
- if (!TclIsLocalScalar(argv[1], nameChars)) {
- ckfree((char *) argv);
+ Tcl_ListObjIndex(NULL, varListObj, 1, &varNameObj);
+ token[1].start = Tcl_GetStringFromObj(varNameObj, &token[1].size);
+ if (!GetLocalScalarIndex(token, envPtr, &valueVarIndex)) {
+ Tcl_DecrRefCount(varListObj);
return TCL_ERROR;
}
- valueVarIndex = TclFindCompiledLocal(argv[1], nameChars, 1, procPtr);
- ckfree((char *) argv);
+
+ Tcl_DecrRefCount(varListObj);
/*
* Allocate a temporary variable to store the iterator reference. The
@@ -1055,21 +994,11 @@ TclCompileDictUpdateCmd(
* compiled. */
CompileEnv *envPtr) /* Holds resulting instructions. */
{
- Proc *procPtr = envPtr->procPtr;
- DefineLineInformation; /* TIP #280 */
- const char *name;
- int i, nameChars, dictIndex, numVars, range, infoIndex;
+ int i, dictIndex, numVars, range, infoIndex;
Tcl_Token **keyTokenPtrs, *dictVarTokenPtr, *bodyTokenPtr, *tokenPtr;
DictUpdateInfo *duiPtr;
JumpFixup jumpFixup;
-
- /*
- * There must be at least one argument after the command.
- */
-
- if (parsePtr->numWords < 5 || procPtr == NULL) {
- return TCL_ERROR;
- }
+ DefineLineInformation; /* TIP #280 */
/*
* Parse the command. Expect the following:
@@ -1080,6 +1009,9 @@ TclCompileDictUpdateCmd(
return TCL_ERROR;
}
numVars = (parsePtr->numWords - 3) / 2;
+ if (numVars < 1) {
+ return TCL_ERROR;
+ }
/*
* The dictionary variable must be a local scalar that is knowable at
@@ -1088,15 +1020,9 @@ TclCompileDictUpdateCmd(
*/
dictVarTokenPtr = TokenAfter(parsePtr->tokenPtr);
- if (dictVarTokenPtr->type != TCL_TOKEN_SIMPLE_WORD) {
+ if (!GetLocalScalarIndex(dictVarTokenPtr, envPtr, &dictIndex)) {
return TCL_ERROR;
}
- name = dictVarTokenPtr[1].start;
- nameChars = dictVarTokenPtr[1].size;
- if (!TclIsLocalScalar(name, nameChars)) {
- return TCL_ERROR;
- }
- dictIndex = TclFindCompiledLocal(name, nameChars, 1, procPtr);
/*
* Assemble the instruction metadata. This is complex enough that it is
@@ -1112,6 +1038,8 @@ TclCompileDictUpdateCmd(
tokenPtr = TokenAfter(dictVarTokenPtr);
for (i=0 ; i<numVars ; i++) {
+ int index;
+
/*
* Put keys to one side for later compilation to bytecode.
*/
@@ -1123,14 +1051,7 @@ TclCompileDictUpdateCmd(
*/
tokenPtr = TokenAfter(tokenPtr);
- if (tokenPtr->type != TCL_TOKEN_SIMPLE_WORD) {
- ckfree((char *) duiPtr);
- TclStackFree(interp, keyTokenPtrs);
- return TCL_ERROR;
- }
- name = tokenPtr[1].start;
- nameChars = tokenPtr[1].size;
- if (!TclIsLocalScalar(name, nameChars)) {
+ if (!GetLocalScalarIndex(tokenPtr, envPtr, &index)) {
ckfree((char *) duiPtr);
TclStackFree(interp, keyTokenPtrs);
return TCL_ERROR;
@@ -1140,8 +1061,7 @@ TclCompileDictUpdateCmd(
* Stash the index in the auxiliary data.
*/
- duiPtr->varIndices[i] =
- TclFindCompiledLocal(name, nameChars, 1, procPtr);
+ duiPtr->varIndices[i] = index;
tokenPtr = TokenAfter(tokenPtr);
}
if (tokenPtr->type != TCL_TOKEN_SIMPLE_WORD) {
@@ -1222,18 +1142,17 @@ TclCompileDictAppendCmd(
* compiled. */
CompileEnv *envPtr) /* Holds resulting instructions. */
{
- Proc *procPtr = envPtr->procPtr;
- DefineLineInformation; /* TIP #280 */
Tcl_Token *tokenPtr;
int i, dictVarIndex;
+ DefineLineInformation; /* TIP #280 */
/*
- * There must be at least two argument after the command. And we impose an
- * (arbirary) safe limit; anyone exceeding it should stop worrying about
- * speed quite so much. ;-)
+ * There must be at least two argument after the command. Since we
+ * implement using INST_CONCAT1, make sure the number of arguments
+ * stays within its range.
*/
- if (parsePtr->numWords<4 || parsePtr->numWords>100 || procPtr==NULL) {
+ if (parsePtr->numWords<4 || parsePtr->numWords>258) {
return TCL_ERROR;
}
@@ -1242,16 +1161,8 @@ TclCompileDictAppendCmd(
*/
tokenPtr = TokenAfter(parsePtr->tokenPtr);
- if (tokenPtr->type != TCL_TOKEN_SIMPLE_WORD) {
+ if (!GetLocalScalarIndex(tokenPtr, envPtr, &dictVarIndex)) {
return TCL_ERROR;
- } else {
- register const char *name = tokenPtr[1].start;
- register int nameChars = tokenPtr[1].size;
-
- if (!TclIsLocalScalar(name, nameChars)) {
- return TCL_ERROR;
- }
- dictVarIndex = TclFindCompiledLocal(name, nameChars, 1, procPtr);
}
/*
@@ -1284,32 +1195,24 @@ TclCompileDictLappendCmd(
* compiled. */
CompileEnv *envPtr) /* Holds resulting instructions. */
{
- Proc *procPtr = envPtr->procPtr;
- DefineLineInformation; /* TIP #280 */
Tcl_Token *varTokenPtr, *keyTokenPtr, *valueTokenPtr;
- int dictVarIndex, nameChars;
- const char *name;
+ int dictVarIndex;
+ DefineLineInformation; /* TIP #280 */
/*
* There must be three arguments after the command.
*/
- if (parsePtr->numWords != 4 || procPtr == NULL) {
+ if (parsePtr->numWords != 4) {
return TCL_ERROR;
}
varTokenPtr = TokenAfter(parsePtr->tokenPtr);
keyTokenPtr = TokenAfter(varTokenPtr);
valueTokenPtr = TokenAfter(keyTokenPtr);
- if (varTokenPtr->type != TCL_TOKEN_SIMPLE_WORD) {
+ if (!GetLocalScalarIndex(varTokenPtr, envPtr, &dictVarIndex)) {
return TCL_ERROR;
}
- name = varTokenPtr[1].start;
- nameChars = varTokenPtr[1].size;
- if (!TclIsLocalScalar(name, nameChars)) {
- return TCL_ERROR;
- }
- dictVarIndex = TclFindCompiledLocal(name, nameChars, 1, procPtr);
CompileWord(envPtr, keyTokenPtr, interp, 2);
CompileWord(envPtr, valueTokenPtr, interp, 3);
TclEmitInstInt4( INST_DICT_LAPPEND, dictVarIndex, envPtr);
@@ -1615,31 +1518,20 @@ TclCompileForeachCmd(
CompileEnv *envPtr) /* Holds resulting instructions. */
{
Proc *procPtr = envPtr->procPtr;
- ForeachInfo *infoPtr; /* Points to the structure describing this
+ ForeachInfo *infoPtr = NULL;/* Points to the structure describing this
* foreach command. Stored in a AuxData
* record in the ByteCode. */
- int firstValueTemp; /* Index of the first temp var in the frame
- * used to point to a value list. */
- int loopCtTemp; /* Index of temp var holding the loop's
- * iteration count. */
Tcl_Token *tokenPtr, *bodyTokenPtr;
+ Tcl_Token token[2];
unsigned char *jumpPc;
JumpFixup jumpFalseFixup;
int jumpBackDist, jumpBackOffset, infoIndex, range;
- int numWords, numLists, numVars, loopIndex, tempVar, i, j, code;
+ int numWords, numLists, tempVar, i, j, code = TCL_OK;
int savedStackDepth = envPtr->currStackDepth;
+ Tcl_Obj *varListObj = NULL;
DefineLineInformation; /* TIP #280 */
/*
- * We parse the variable list argument words and create two arrays:
- * varcList[i] is number of variables in i-th var list.
- * varvList[i] points to array of var names in i-th var list.
- */
-
- int *varcList;
- const char ***varvList;
-
- /*
* If the foreach command isn't in a procedure, don't compile it inline:
* the payoff is too small.
*/
@@ -1667,51 +1559,34 @@ TclCompileForeachCmd(
}
/*
- * Allocate storage for the varcList and varvList arrays if necessary.
+ * Create and initialize the ForeachInfo and ForeachVarList data
+ * structures describing this command. Then create a AuxData record
+ * pointing to the ForeachInfo structure.
*/
numLists = (numWords - 2)/2;
- varcList = (int *) TclStackAlloc(interp, numLists * sizeof(int));
- memset(varcList, 0, numLists * sizeof(int));
- varvList = (const char ***) TclStackAlloc(interp,
- numLists * sizeof(const char **));
- memset((char*) varvList, 0, numLists * sizeof(const char **));
+ infoPtr = (ForeachInfo *) ckalloc((unsigned)
+ sizeof(ForeachInfo) + numLists*sizeof(ForeachVarList *));
+ infoPtr->numLists = 0; /* Count this up as we go */
/*
- * Break up each var list and set the varcList and varvList arrays. Don't
+ * Parse each var list into sequence of var names. Don't
* compile the foreach inline if any var name needs substitutions or isn't
* a scalar, or if any var list needs substitutions.
*/
- loopIndex = 0;
+ varListObj = Tcl_NewObj();
+ token[0].type = TCL_TOKEN_SIMPLE_WORD;
+ token[0].numComponents = 1;
for (i = 0, tokenPtr = parsePtr->tokenPtr;
i < numWords-1;
i++, tokenPtr = TokenAfter(tokenPtr)) {
- Tcl_DString varList;
+ ForeachVarList *varListPtr;
+ int numVars;
if (i%2 != 1) {
continue;
}
- if (tokenPtr->type != TCL_TOKEN_SIMPLE_WORD) {
- code = TCL_ERROR;
- goto done;
- }
-
- /*
- * Lots of copying going on here. Need a ListObj wizard to show a
- * better way.
- */
-
- Tcl_DStringInit(&varList);
- Tcl_DStringAppend(&varList, tokenPtr[1].start, tokenPtr[1].size);
- code = Tcl_SplitList(interp, Tcl_DStringValue(&varList),
- &varcList[loopIndex], &varvList[loopIndex]);
- Tcl_DStringFree(&varList);
- if (code != TCL_OK) {
- code = TCL_ERROR;
- goto done;
- }
- numVars = varcList[loopIndex];
/*
* If the variable list is empty, we can enter an infinite loop when
@@ -1719,25 +1594,35 @@ TclCompileForeachCmd(
* not happen. [Bug 1671138]
*/
- if (numVars == 0) {
+ if (!TclWordKnownAtCompileTime(tokenPtr, varListObj) ||
+ TCL_OK != Tcl_ListObjLength(NULL, varListObj, &numVars) ||
+ numVars == 0) {
code = TCL_ERROR;
goto done;
}
+ varListPtr = (ForeachVarList *) ckalloc((unsigned)
+ sizeof(ForeachVarList) + numVars*sizeof(int));
+ varListPtr->numVars = numVars;
+ infoPtr->varLists[i/2] = varListPtr;
+ infoPtr->numLists++;
+
for (j = 0; j < numVars; j++) {
- const char *varName = varvList[loopIndex][j];
+ Tcl_Obj *varNameObj;
- if (!TclIsLocalScalar(varName, (int) strlen(varName))) {
+ Tcl_ListObjIndex(NULL, varListObj, j, &varNameObj);
+ token[1].start = Tcl_GetStringFromObj(varNameObj, &token[1].size);
+ if (!GetLocalScalarIndex(token, envPtr,
+ varListPtr->varIndexes + j)) {
code = TCL_ERROR;
goto done;
}
}
- loopIndex++;
+ Tcl_SetObjLength(varListObj, 0);
}
/*
- * We will compile the foreach command. Reserve (numLists + 1) temporary
- * variables:
+ * Reserve (numLists + 1) temporary variables:
* - numLists temps to hold each value list
* - 1 temp for the loop counter (index of next element in each list)
*
@@ -1745,44 +1630,13 @@ TclCompileForeachCmd(
* nonoverlapping foreach loops, they don't share any temps.
*/
- code = TCL_OK;
- firstValueTemp = -1;
- for (loopIndex = 0; loopIndex < numLists; loopIndex++) {
- tempVar = TclFindCompiledLocal(NULL, /*nameChars*/ 0,
- /*create*/ 1, procPtr);
- if (loopIndex == 0) {
- firstValueTemp = tempVar;
- }
+ tempVar = TclFindCompiledLocal(NULL, 0, 1, procPtr);
+ infoPtr->firstValueTemp = tempVar;
+ for (i= 1; i < numLists; i++) {
+ TclFindCompiledLocal(NULL, 0, 1, procPtr);
}
- loopCtTemp = TclFindCompiledLocal(NULL, /*nameChars*/ 0,
- /*create*/ 1, procPtr);
-
- /*
- * Create and initialize the ForeachInfo and ForeachVarList data
- * structures describing this command. Then create a AuxData record
- * pointing to the ForeachInfo structure.
- */
+ infoPtr->loopCtTemp = TclFindCompiledLocal(NULL, 0, 1, procPtr);
- infoPtr = (ForeachInfo *) ckalloc((unsigned)
- sizeof(ForeachInfo) + numLists*sizeof(ForeachVarList *));
- infoPtr->numLists = numLists;
- infoPtr->firstValueTemp = firstValueTemp;
- infoPtr->loopCtTemp = loopCtTemp;
- for (loopIndex = 0; loopIndex < numLists; loopIndex++) {
- ForeachVarList *varListPtr;
- numVars = varcList[loopIndex];
- varListPtr = (ForeachVarList *) ckalloc((unsigned)
- sizeof(ForeachVarList) + numVars*sizeof(int));
- varListPtr->numVars = numVars;
- for (j = 0; j < numVars; j++) {
- const char *varName = varvList[loopIndex][j];
- int nameChars = strlen(varName);
-
- varListPtr->varIndexes[j] = TclFindCompiledLocal(varName,
- nameChars, /*create*/ 1, procPtr);
- }
- infoPtr->varLists[loopIndex] = varListPtr;
- }
infoIndex = TclCreateAuxData(infoPtr, &tclForeachInfoType, envPtr);
/*
@@ -1795,21 +1649,19 @@ TclCompileForeachCmd(
* Evaluate then store each value list in the associated temporary.
*/
- loopIndex = 0;
for (i = 0, tokenPtr = parsePtr->tokenPtr;
i < numWords-1;
i++, tokenPtr = TokenAfter(tokenPtr)) {
if ((i%2 == 0) && (i > 0)) {
SetLineInformation (i);
CompileTokens(envPtr, tokenPtr, interp);
- tempVar = (firstValueTemp + loopIndex);
if (tempVar <= 255) {
TclEmitInstInt1(INST_STORE_SCALAR1, tempVar, envPtr);
} else {
TclEmitInstInt4(INST_STORE_SCALAR4, tempVar, envPtr);
}
TclEmitOpcode(INST_POP, envPtr);
- loopIndex++;
+ tempVar++;
}
}
@@ -1895,13 +1747,14 @@ TclCompileForeachCmd(
envPtr->currStackDepth = savedStackDepth + 1;
done:
- for (loopIndex = 0; loopIndex < numLists; loopIndex++) {
- if (varvList[loopIndex] != NULL) {
- ckfree((char *) varvList[loopIndex]);
+ if (code == TCL_ERROR) {
+ if (infoPtr) {
+ FreeForeachInfo(infoPtr);
}
}
- TclStackFree(interp, (void *)varvList);
- TclStackFree(interp, varcList);
+ if (varListObj) {
+ Tcl_DecrRefCount(varListObj);
+ }
return code;
}
@@ -4842,6 +4695,38 @@ TclCompileWhileCmd(
/*
*----------------------------------------------------------------------
*
+ * GetLocalScalarIndex --
+ *
+ * Procedure used in the compiling where pushing a variable name is
+ * necessary (append, lappend, set).
+ *
+ * Results:
+ * Returns TCL_OK for a successful compile. Returns TCL_ERROR to defer
+ * evaluation to runtime.
+ *
+ * Side effects:
+ * Instructions are added to envPtr to execute the "set" command at
+ * runtime.
+ *
+ *----------------------------------------------------------------------
+ */
+
+static int
+GetLocalScalarIndex(
+ Tcl_Token *tokenPtr,
+ CompileEnv *envPtr,
+ int *indexPtr)
+{
+ int isSimple, isScalar;
+
+ PushVarName(NULL, tokenPtr, envPtr, TCL_CREATE_VAR, indexPtr,
+ &isSimple, &isScalar, 0 /* ignored */, NULL /* ignored */);
+ return (isScalar && *indexPtr >= 0);
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
* PushVarName --
*
* Procedure used in the compiling where pushing a variable name is
@@ -4930,7 +4815,7 @@ PushVarName(
elemTokenCount = 1;
}
}
- } else if (((n = varTokenPtr->numComponents) > 1)
+ } else if (interp && ((n = varTokenPtr->numComponents) > 1)
&& (varTokenPtr[1].type == TCL_TOKEN_TEXT)
&& (varTokenPtr[n].type == TCL_TOKEN_TEXT)
&& (varTokenPtr[n].start[varTokenPtr[n].size - 1] == ')')) {
@@ -5032,7 +4917,7 @@ PushVarName(
localIndex = -1;
}
}
- if (localIndex < 0) {
+ if (interp && localIndex < 0) {
PushLiteral(envPtr, name, nameChars);
}
@@ -5040,7 +4925,7 @@ PushVarName(
* Compile the element script, if any.
*/
- if (elName != NULL) {
+ if (interp && elName != NULL) {
if (elNameChars) {
envPtr->line = line;
envPtr->clNext = clNext;
@@ -5049,7 +4934,7 @@ PushVarName(
PushLiteral(envPtr, "", 0);
}
}
- } else {
+ } else if (interp) {
/*
* The var name isn't simple: compile and push it.
*/
@@ -5770,7 +5655,7 @@ TclCompileUpvarCmd(
CompileEnv *envPtr) /* Holds resulting instructions. */
{
Tcl_Token *tokenPtr, *otherTokenPtr, *localTokenPtr;
- int simpleVarName, isScalar, localIndex, numWords, i;
+ int localIndex, numWords, i;
DefineLineInformation; /* TIP #280 */
Tcl_Obj *objPtr;
@@ -5833,10 +5718,7 @@ TclCompileUpvarCmd(
localTokenPtr = TokenAfter(otherTokenPtr);
CompileWord(envPtr, otherTokenPtr, interp, i);
- PushVarNameWord(interp, localTokenPtr, envPtr, TCL_CREATE_VAR,
- &localIndex, &simpleVarName, &isScalar, i+1);
-
- if((localIndex < 0) || !isScalar) {
+ if (!GetLocalScalarIndex(localTokenPtr, envPtr, &localIndex)) {
return TCL_ERROR;
}
TclEmitInstInt4(INST_UPVAR, localIndex, envPtr);
@@ -5880,7 +5762,7 @@ TclCompileNamespaceCmd(
CompileEnv *envPtr) /* Holds resulting instructions. */
{
Tcl_Token *tokenPtr, *otherTokenPtr, *localTokenPtr;
- int simpleVarName, isScalar, localIndex, numWords, i;
+ int localIndex, numWords, i;
DefineLineInformation; /* TIP #280 */
if (envPtr->procPtr == NULL) {
@@ -5925,10 +5807,7 @@ TclCompileNamespaceCmd(
localTokenPtr = TokenAfter(otherTokenPtr);
CompileWord(envPtr, otherTokenPtr, interp, i);
- PushVarNameWord(interp, localTokenPtr, envPtr, TCL_CREATE_VAR,
- &localIndex, &simpleVarName, &isScalar, i+1);
-
- if((localIndex < 0) || !isScalar) {
+ if (!GetLocalScalarIndex(localTokenPtr, envPtr, &localIndex)) {
return TCL_ERROR;
}
TclEmitInstInt4(INST_NSUPVAR, localIndex, envPtr);
generated by cgit v0.12 at 2024-11-09 23:39:14 (GMT)