diff options
Diffstat (limited to 'generic/tclCompile.c')
| -rw-r--r-- | generic/tclCompile.c | 808 |
1 files changed, 9 insertions, 799 deletions
diff --git a/generic/tclCompile.c b/generic/tclCompile.c index c5d0107..eaa0f84 100644 --- a/generic/tclCompile.c +++ b/generic/tclCompile.c @@ -55,9 +55,9 @@ InstructionDesc const tclInstructionTable[] = { /* Name Bytes stackEffect #Opnds Operand types */ {"done", 1, -1, 0, {OPERAND_NONE}}, /* Finish ByteCode execution and return stktop (top stack item) */ - {"push1", 2, +1, 1, {OPERAND_UINT1}}, + {"push1", 2, +1, 1, {OPERAND_LIT1}}, /* Push object at ByteCode objArray[op1] */ - {"push4", 5, +1, 1, {OPERAND_UINT4}}, + {"push4", 5, +1, 1, {OPERAND_LIT4}}, /* Push object at ByteCode objArray[op4] */ {"pop", 1, -1, 0, {OPERAND_NONE}}, /* Pop the topmost stack object */ @@ -125,17 +125,17 @@ InstructionDesc const tclInstructionTable[] = { {"incrStkImm", 2, 0, 1, {OPERAND_INT1}}, /* Incr general variable; unparsed name is top, amount is op1 */ - {"jump1", 2, 0, 1, {OPERAND_INT1}}, + {"jump1", 2, 0, 1, {OPERAND_OFFSET1}}, /* Jump relative to (pc + op1) */ - {"jump4", 5, 0, 1, {OPERAND_INT4}}, + {"jump4", 5, 0, 1, {OPERAND_OFFSET4}}, /* Jump relative to (pc + op4) */ - {"jumpTrue1", 2, -1, 1, {OPERAND_INT1}}, + {"jumpTrue1", 2, -1, 1, {OPERAND_OFFSET1}}, /* Jump relative to (pc + op1) if stktop expr object is true */ - {"jumpTrue4", 5, -1, 1, {OPERAND_INT4}}, + {"jumpTrue4", 5, -1, 1, {OPERAND_OFFSET4}}, /* Jump relative to (pc + op4) if stktop expr object is true */ - {"jumpFalse1", 2, -1, 1, {OPERAND_INT1}}, + {"jumpFalse1", 2, -1, 1, {OPERAND_OFFSET1}}, /* Jump relative to (pc + op1) if stktop expr object is false */ - {"jumpFalse4", 5, -1, 1, {OPERAND_INT4}}, + {"jumpFalse4", 5, -1, 1, {OPERAND_OFFSET4}}, /* Jump relative to (pc + op4) if stktop expr object is false */ {"lor", 1, -1, 0, {OPERAND_NONE}}, @@ -298,7 +298,7 @@ InstructionDesc const tclInstructionTable[] = { /* List Index: push (lindex stktop op4) */ {"listRangeImm", 9, 0, 2, {OPERAND_IDX4, OPERAND_IDX4}}, /* List Range: push (lrange stktop op4 op4) */ - {"startCommand", 9, 0, 2, {OPERAND_INT4,OPERAND_UINT4}}, + {"startCommand", 9, 0, 2, {OPERAND_OFFSET4, OPERAND_UINT4}}, /* Start of bytecoded command: op is the length of the cmd's code, op2 * is number of commands here */ @@ -679,11 +679,6 @@ static void RegisterAuxDataType(const AuxDataType *typePtr); static int SetByteCodeFromAny(Tcl_Interp *interp, Tcl_Obj *objPtr); static void StartExpanding(CompileEnv *envPtr); -static int FormatInstruction(ByteCode *codePtr, - const unsigned char *pc, Tcl_Obj *bufferObj); -static void PrintSourceToObj(Tcl_Obj *appendObj, - const char *stringPtr, int maxChars); -static void UpdateStringOfInstName(Tcl_Obj *objPtr); /* * TIP #280: Helper for building the per-word line information of all compiled @@ -722,19 +717,6 @@ static const Tcl_ObjType substCodeType = { }; /* - * The structure below defines an instruction name Tcl object to allow - * reporting of inner contexts in errorstack without string allocation. - */ - -static const Tcl_ObjType tclInstNameType = { - "instname", /* name */ - NULL, /* freeIntRepProc */ - NULL, /* dupIntRepProc */ - UpdateStringOfInstName, /* updateStringProc */ - NULL, /* setFromAnyProc */ -}; - -/* * Helper macros. */ @@ -4583,778 +4565,6 @@ EncodeCmdLocMap( return p; } -#ifdef TCL_COMPILE_DEBUG -/* - *---------------------------------------------------------------------- - * - * TclPrintByteCodeObj -- - * - * This procedure prints ("disassembles") the instructions of a bytecode - * object to stdout. - * - * Results: - * None. - * - * Side effects: - * None. - * - *---------------------------------------------------------------------- - */ - -void -TclPrintByteCodeObj( - Tcl_Interp *interp, /* Used only for Tcl_GetStringFromObj. */ - Tcl_Obj *objPtr) /* The bytecode object to disassemble. */ -{ - Tcl_Obj *bufPtr = TclDisassembleByteCodeObj(objPtr); - - fprintf(stdout, "\n%s", TclGetString(bufPtr)); - Tcl_DecrRefCount(bufPtr); -} - -/* - *---------------------------------------------------------------------- - * - * TclPrintInstruction -- - * - * This procedure prints ("disassembles") one instruction from a bytecode - * object to stdout. - * - * Results: - * Returns the length in bytes of the current instruiction. - * - * Side effects: - * None. - * - *---------------------------------------------------------------------- - */ - -int -TclPrintInstruction( - ByteCode *codePtr, /* Bytecode containing the instruction. */ - const unsigned char *pc) /* Points to first byte of instruction. */ -{ - Tcl_Obj *bufferObj; - int numBytes; - - TclNewObj(bufferObj); - numBytes = FormatInstruction(codePtr, pc, bufferObj); - fprintf(stdout, "%s", TclGetString(bufferObj)); - Tcl_DecrRefCount(bufferObj); - return numBytes; -} - -/* - *---------------------------------------------------------------------- - * - * TclPrintObject -- - * - * This procedure prints up to a specified number of characters from the - * argument Tcl object's string representation to a specified file. - * - * Results: - * None. - * - * Side effects: - * Outputs characters to the specified file. - * - *---------------------------------------------------------------------- - */ - -void -TclPrintObject( - FILE *outFile, /* The file to print the source to. */ - Tcl_Obj *objPtr, /* Points to the Tcl object whose string - * representation should be printed. */ - int maxChars) /* Maximum number of chars to print. */ -{ - char *bytes; - int length; - - bytes = Tcl_GetStringFromObj(objPtr, &length); - TclPrintSource(outFile, bytes, TclMin(length, maxChars)); -} - -/* - *---------------------------------------------------------------------- - * - * TclPrintSource -- - * - * This procedure prints up to a specified number of characters from the - * argument string to a specified file. It tries to produce legible - * output by adding backslashes as necessary. - * - * Results: - * None. - * - * Side effects: - * Outputs characters to the specified file. - * - *---------------------------------------------------------------------- - */ - -void -TclPrintSource( - FILE *outFile, /* The file to print the source to. */ - const char *stringPtr, /* The string to print. */ - int maxChars) /* Maximum number of chars to print. */ -{ - Tcl_Obj *bufferObj; - - TclNewObj(bufferObj); - PrintSourceToObj(bufferObj, stringPtr, maxChars); - fprintf(outFile, "%s", TclGetString(bufferObj)); - Tcl_DecrRefCount(bufferObj); -} -#endif /* TCL_COMPILE_DEBUG */ - -/* - *---------------------------------------------------------------------- - * - * TclDisassembleByteCodeObj -- - * - * Given an object which is of bytecode type, return a disassembled - * version of the bytecode (in a new refcount 0 object). No guarantees - * are made about the details of the contents of the result. - * - *---------------------------------------------------------------------- - */ - -Tcl_Obj * -TclDisassembleByteCodeObj( - Tcl_Obj *objPtr) /* The bytecode object to disassemble. */ -{ - ByteCode *codePtr = objPtr->internalRep.twoPtrValue.ptr1; - unsigned char *codeStart, *codeLimit, *pc; - unsigned char *codeDeltaNext, *codeLengthNext; - unsigned char *srcDeltaNext, *srcLengthNext; - int codeOffset, codeLen, srcOffset, srcLen, numCmds, delta, i; - Interp *iPtr = (Interp *) *codePtr->interpHandle; - Tcl_Obj *bufferObj; - char ptrBuf1[20], ptrBuf2[20]; - - TclNewObj(bufferObj); - if (codePtr->refCount <= 0) { - return bufferObj; /* Already freed. */ - } - - codeStart = codePtr->codeStart; - codeLimit = codeStart + codePtr->numCodeBytes; - numCmds = codePtr->numCommands; - - /* - * Print header lines describing the ByteCode. - */ - - sprintf(ptrBuf1, "%p", codePtr); - sprintf(ptrBuf2, "%p", iPtr); - Tcl_AppendPrintfToObj(bufferObj, - "ByteCode 0x%s, refCt %u, epoch %u, interp 0x%s (epoch %u)\n", - ptrBuf1, codePtr->refCount, codePtr->compileEpoch, ptrBuf2, - iPtr->compileEpoch); - Tcl_AppendToObj(bufferObj, " Source ", -1); - PrintSourceToObj(bufferObj, codePtr->source, - TclMin(codePtr->numSrcBytes, 55)); - Tcl_AppendPrintfToObj(bufferObj, - "\n Cmds %d, src %d, inst %d, litObjs %u, aux %d, stkDepth %u, code/src %.2f\n", - numCmds, codePtr->numSrcBytes, codePtr->numCodeBytes, - codePtr->numLitObjects, codePtr->numAuxDataItems, - codePtr->maxStackDepth, -#ifdef TCL_COMPILE_STATS - codePtr->numSrcBytes? - codePtr->structureSize/(float)codePtr->numSrcBytes : -#endif - 0.0); - -#ifdef TCL_COMPILE_STATS - Tcl_AppendPrintfToObj(bufferObj, - " Code %lu = header %lu+inst %d+litObj %lu+exc %lu+aux %lu+cmdMap %d\n", - (unsigned long) codePtr->structureSize, - (unsigned long) (sizeof(ByteCode) - sizeof(size_t) - sizeof(Tcl_Time)), - codePtr->numCodeBytes, - (unsigned long) (codePtr->numLitObjects * sizeof(Tcl_Obj *)), - (unsigned long) (codePtr->numExceptRanges*sizeof(ExceptionRange)), - (unsigned long) (codePtr->numAuxDataItems * sizeof(AuxData)), - codePtr->numCmdLocBytes); -#endif /* TCL_COMPILE_STATS */ - - /* - * If the ByteCode is the compiled body of a Tcl procedure, print - * information about that procedure. Note that we don't know the - * procedure's name since ByteCode's can be shared among procedures. - */ - - if (codePtr->procPtr != NULL) { - Proc *procPtr = codePtr->procPtr; - int numCompiledLocals = procPtr->numCompiledLocals; - - sprintf(ptrBuf1, "%p", procPtr); - Tcl_AppendPrintfToObj(bufferObj, - " Proc 0x%s, refCt %d, args %d, compiled locals %d\n", - ptrBuf1, procPtr->refCount, procPtr->numArgs, - numCompiledLocals); - if (numCompiledLocals > 0) { - CompiledLocal *localPtr = procPtr->firstLocalPtr; - - for (i = 0; i < numCompiledLocals; i++) { - Tcl_AppendPrintfToObj(bufferObj, - " slot %d%s%s%s%s%s%s", i, - (localPtr->flags & (VAR_ARRAY|VAR_LINK)) ? "" : ", scalar", - (localPtr->flags & VAR_ARRAY) ? ", array" : "", - (localPtr->flags & VAR_LINK) ? ", link" : "", - (localPtr->flags & VAR_ARGUMENT) ? ", arg" : "", - (localPtr->flags & VAR_TEMPORARY) ? ", temp" : "", - (localPtr->flags & VAR_RESOLVED) ? ", resolved" : ""); - if (TclIsVarTemporary(localPtr)) { - Tcl_AppendToObj(bufferObj, "\n", -1); - } else { - Tcl_AppendPrintfToObj(bufferObj, ", \"%s\"\n", - localPtr->name); - } - localPtr = localPtr->nextPtr; - } - } - } - - /* - * Print the ExceptionRange array. - */ - - if (codePtr->numExceptRanges > 0) { - Tcl_AppendPrintfToObj(bufferObj, " Exception ranges %d, depth %d:\n", - codePtr->numExceptRanges, codePtr->maxExceptDepth); - for (i = 0; i < codePtr->numExceptRanges; i++) { - ExceptionRange *rangePtr = &codePtr->exceptArrayPtr[i]; - - Tcl_AppendPrintfToObj(bufferObj, - " %d: level %d, %s, pc %d-%d, ", - i, rangePtr->nestingLevel, - (rangePtr->type==LOOP_EXCEPTION_RANGE ? "loop" : "catch"), - rangePtr->codeOffset, - (rangePtr->codeOffset + rangePtr->numCodeBytes - 1)); - switch (rangePtr->type) { - case LOOP_EXCEPTION_RANGE: - Tcl_AppendPrintfToObj(bufferObj, "continue %d, break %d\n", - rangePtr->continueOffset, rangePtr->breakOffset); - break; - case CATCH_EXCEPTION_RANGE: - Tcl_AppendPrintfToObj(bufferObj, "catch %d\n", - rangePtr->catchOffset); - break; - default: - Tcl_Panic("TclDisassembleByteCodeObj: bad ExceptionRange type %d", - rangePtr->type); - } - } - } - - /* - * If there were no commands (e.g., an expression or an empty string was - * compiled), just print all instructions and return. - */ - - if (numCmds == 0) { - pc = codeStart; - while (pc < codeLimit) { - Tcl_AppendToObj(bufferObj, " ", -1); - pc += FormatInstruction(codePtr, pc, bufferObj); - } - return bufferObj; - } - - /* - * Print table showing the code offset, source offset, and source length - * for each command. These are encoded as a sequence of bytes. - */ - - Tcl_AppendPrintfToObj(bufferObj, " Commands %d:", numCmds); - codeDeltaNext = codePtr->codeDeltaStart; - codeLengthNext = codePtr->codeLengthStart; - srcDeltaNext = codePtr->srcDeltaStart; - srcLengthNext = codePtr->srcLengthStart; - codeOffset = srcOffset = 0; - for (i = 0; i < numCmds; i++) { - if ((unsigned) *codeDeltaNext == (unsigned) 0xFF) { - codeDeltaNext++; - delta = TclGetInt4AtPtr(codeDeltaNext); - codeDeltaNext += 4; - } else { - delta = TclGetInt1AtPtr(codeDeltaNext); - codeDeltaNext++; - } - codeOffset += delta; - - if ((unsigned) *codeLengthNext == (unsigned) 0xFF) { - codeLengthNext++; - codeLen = TclGetInt4AtPtr(codeLengthNext); - codeLengthNext += 4; - } else { - codeLen = TclGetInt1AtPtr(codeLengthNext); - codeLengthNext++; - } - - if ((unsigned) *srcDeltaNext == (unsigned) 0xFF) { - srcDeltaNext++; - delta = TclGetInt4AtPtr(srcDeltaNext); - srcDeltaNext += 4; - } else { - delta = TclGetInt1AtPtr(srcDeltaNext); - srcDeltaNext++; - } - srcOffset += delta; - - if ((unsigned) *srcLengthNext == (unsigned) 0xFF) { - srcLengthNext++; - srcLen = TclGetInt4AtPtr(srcLengthNext); - srcLengthNext += 4; - } else { - srcLen = TclGetInt1AtPtr(srcLengthNext); - srcLengthNext++; - } - - Tcl_AppendPrintfToObj(bufferObj, "%s%4d: pc %d-%d, src %d-%d", - ((i % 2)? " " : "\n "), - (i+1), codeOffset, (codeOffset + codeLen - 1), - srcOffset, (srcOffset + srcLen - 1)); - } - if (numCmds > 0) { - Tcl_AppendToObj(bufferObj, "\n", -1); - } - - /* - * Print each instruction. If the instruction corresponds to the start of - * a command, print the command's source. Note that we don't need the code - * length here. - */ - - codeDeltaNext = codePtr->codeDeltaStart; - srcDeltaNext = codePtr->srcDeltaStart; - srcLengthNext = codePtr->srcLengthStart; - codeOffset = srcOffset = 0; - pc = codeStart; - for (i = 0; i < numCmds; i++) { - if ((unsigned) *codeDeltaNext == (unsigned) 0xFF) { - codeDeltaNext++; - delta = TclGetInt4AtPtr(codeDeltaNext); - codeDeltaNext += 4; - } else { - delta = TclGetInt1AtPtr(codeDeltaNext); - codeDeltaNext++; - } - codeOffset += delta; - - if ((unsigned) *srcDeltaNext == (unsigned) 0xFF) { - srcDeltaNext++; - delta = TclGetInt4AtPtr(srcDeltaNext); - srcDeltaNext += 4; - } else { - delta = TclGetInt1AtPtr(srcDeltaNext); - srcDeltaNext++; - } - srcOffset += delta; - - if ((unsigned) *srcLengthNext == (unsigned) 0xFF) { - srcLengthNext++; - srcLen = TclGetInt4AtPtr(srcLengthNext); - srcLengthNext += 4; - } else { - srcLen = TclGetInt1AtPtr(srcLengthNext); - srcLengthNext++; - } - - /* - * Print instructions before command i. - */ - - while ((pc-codeStart) < codeOffset) { - Tcl_AppendToObj(bufferObj, " ", -1); - pc += FormatInstruction(codePtr, pc, bufferObj); - } - - Tcl_AppendPrintfToObj(bufferObj, " Command %d: ", i+1); - PrintSourceToObj(bufferObj, (codePtr->source + srcOffset), - TclMin(srcLen, 55)); - Tcl_AppendToObj(bufferObj, "\n", -1); - } - if (pc < codeLimit) { - /* - * Print instructions after the last command. - */ - - while (pc < codeLimit) { - Tcl_AppendToObj(bufferObj, " ", -1); - pc += FormatInstruction(codePtr, pc, bufferObj); - } - } - return bufferObj; -} - -/* - *---------------------------------------------------------------------- - * - * FormatInstruction -- - * - * Appends a representation of a bytecode instruction to a Tcl_Obj. - * - *---------------------------------------------------------------------- - */ - -static int -FormatInstruction( - ByteCode *codePtr, /* Bytecode containing the instruction. */ - const unsigned char *pc, /* Points to first byte of instruction. */ - Tcl_Obj *bufferObj) /* Object to append instruction info to. */ -{ - Proc *procPtr = codePtr->procPtr; - unsigned char opCode = *pc; - register const InstructionDesc *instDesc = &tclInstructionTable[opCode]; - unsigned char *codeStart = codePtr->codeStart; - unsigned pcOffset = pc - codeStart; - int opnd = 0, i, j, numBytes = 1; - int localCt = procPtr ? procPtr->numCompiledLocals : 0; - CompiledLocal *localPtr = procPtr ? procPtr->firstLocalPtr : NULL; - char suffixBuffer[128]; /* Additional info to print after main opcode - * and immediates. */ - char *suffixSrc = NULL; - Tcl_Obj *suffixObj = NULL; - AuxData *auxPtr = NULL; - - suffixBuffer[0] = '\0'; - Tcl_AppendPrintfToObj(bufferObj, "(%u) %s ", pcOffset, instDesc->name); - for (i = 0; i < instDesc->numOperands; i++) { - switch (instDesc->opTypes[i]) { - case OPERAND_INT1: - opnd = TclGetInt1AtPtr(pc+numBytes); numBytes++; - if (opCode == INST_JUMP1 || opCode == INST_JUMP_TRUE1 - || opCode == INST_JUMP_FALSE1) { - sprintf(suffixBuffer, "pc %u", pcOffset+opnd); - } - Tcl_AppendPrintfToObj(bufferObj, "%+d ", opnd); - break; - case OPERAND_INT4: - opnd = TclGetInt4AtPtr(pc+numBytes); numBytes += 4; - if (opCode == INST_JUMP4 || opCode == INST_JUMP_TRUE4 - || opCode == INST_JUMP_FALSE4) { - sprintf(suffixBuffer, "pc %u", pcOffset+opnd); - } else if (opCode == INST_START_CMD) { - sprintf(suffixBuffer, "next cmd at pc %u", pcOffset+opnd); - } - Tcl_AppendPrintfToObj(bufferObj, "%+d ", opnd); - break; - case OPERAND_UINT1: - opnd = TclGetUInt1AtPtr(pc+numBytes); numBytes++; - if (opCode == INST_PUSH1) { - suffixObj = codePtr->objArrayPtr[opnd]; - } - Tcl_AppendPrintfToObj(bufferObj, "%u ", (unsigned) opnd); - break; - case OPERAND_AUX4: - case OPERAND_UINT4: - opnd = TclGetUInt4AtPtr(pc+numBytes); numBytes += 4; - if (opCode == INST_PUSH4) { - suffixObj = codePtr->objArrayPtr[opnd]; - } else if (opCode == INST_START_CMD && opnd != 1) { - sprintf(suffixBuffer+strlen(suffixBuffer), - ", %u cmds start here", opnd); - } - Tcl_AppendPrintfToObj(bufferObj, "%u ", (unsigned) opnd); - if (instDesc->opTypes[i] == OPERAND_AUX4) { - auxPtr = &codePtr->auxDataArrayPtr[opnd]; - } - break; - case OPERAND_IDX4: - opnd = TclGetInt4AtPtr(pc+numBytes); numBytes += 4; - if (opnd >= -1) { - Tcl_AppendPrintfToObj(bufferObj, "%d ", opnd); - } else if (opnd == -2) { - Tcl_AppendPrintfToObj(bufferObj, "end "); - } else { - Tcl_AppendPrintfToObj(bufferObj, "end-%d ", -2-opnd); - } - break; - case OPERAND_LVT1: - opnd = TclGetUInt1AtPtr(pc+numBytes); - numBytes++; - goto printLVTindex; - case OPERAND_LVT4: - opnd = TclGetUInt4AtPtr(pc+numBytes); - numBytes += 4; - printLVTindex: - if (localPtr != NULL) { - if (opnd >= localCt) { - Tcl_Panic("FormatInstruction: bad local var index %u (%u locals)", - (unsigned) opnd, localCt); - } - for (j = 0; j < opnd; j++) { - localPtr = localPtr->nextPtr; - } - if (TclIsVarTemporary(localPtr)) { - sprintf(suffixBuffer, "temp var %u", (unsigned) opnd); - } else { - sprintf(suffixBuffer, "var "); - suffixSrc = localPtr->name; - } - } - Tcl_AppendPrintfToObj(bufferObj, "%%v%u ", (unsigned) opnd); - break; - case OPERAND_SCLS1: - opnd = TclGetUInt1AtPtr(pc+numBytes); numBytes++; - Tcl_AppendPrintfToObj(bufferObj, "%s ", - tclStringClassTable[opnd].name); - break; - case OPERAND_NONE: - default: - break; - } - } - if (suffixObj) { - const char *bytes; - int length; - - Tcl_AppendToObj(bufferObj, "\t# ", -1); - bytes = Tcl_GetStringFromObj(codePtr->objArrayPtr[opnd], &length); - PrintSourceToObj(bufferObj, bytes, TclMin(length, 40)); - } else if (suffixBuffer[0]) { - Tcl_AppendPrintfToObj(bufferObj, "\t# %s", suffixBuffer); - if (suffixSrc) { - PrintSourceToObj(bufferObj, suffixSrc, 40); - } - } - Tcl_AppendToObj(bufferObj, "\n", -1); - if (auxPtr && auxPtr->type->printProc) { - Tcl_AppendToObj(bufferObj, "\t\t[", -1); - auxPtr->type->printProc(auxPtr->clientData, bufferObj, codePtr, - pcOffset); - Tcl_AppendToObj(bufferObj, "]\n", -1); - } - return numBytes; -} - -/* - *---------------------------------------------------------------------- - * - * TclGetInnerContext -- - * - * If possible, returns a list capturing the inner context. Otherwise - * return NULL. - * - *---------------------------------------------------------------------- - */ - -Tcl_Obj * -TclGetInnerContext( - Tcl_Interp *interp, - const unsigned char *pc, - Tcl_Obj **tosPtr) -{ - int objc = 0, off = 0; - Tcl_Obj *result; - Interp *iPtr = (Interp *) interp; - - switch (*pc) { - case INST_STR_LEN: - case INST_LNOT: - case INST_BITNOT: - case INST_UMINUS: - case INST_UPLUS: - case INST_TRY_CVT_TO_NUMERIC: - case INST_EXPAND_STKTOP: - case INST_EXPR_STK: - objc = 1; - break; - - case INST_LIST_IN: - case INST_LIST_NOT_IN: /* Basic list containment operators. */ - case INST_STR_EQ: - case INST_STR_NEQ: /* String (in)equality check */ - case INST_STR_CMP: /* String compare. */ - case INST_STR_INDEX: - case INST_STR_MATCH: - case INST_REGEXP: - case INST_EQ: - case INST_NEQ: - case INST_LT: - case INST_GT: - case INST_LE: - case INST_GE: - case INST_MOD: - case INST_LSHIFT: - case INST_RSHIFT: - case INST_BITOR: - case INST_BITXOR: - case INST_BITAND: - case INST_EXPON: - case INST_ADD: - case INST_SUB: - case INST_DIV: - case INST_MULT: - objc = 2; - break; - - case INST_RETURN_STK: - /* early pop. TODO: dig out opt dict too :/ */ - objc = 1; - break; - - case INST_SYNTAX: - case INST_RETURN_IMM: - objc = 2; - break; - - case INST_INVOKE_STK4: - objc = TclGetUInt4AtPtr(pc+1); - break; - - case INST_INVOKE_STK1: - objc = TclGetUInt1AtPtr(pc+1); - break; - } - - result = iPtr->innerContext; - if (Tcl_IsShared(result)) { - Tcl_DecrRefCount(result); - iPtr->innerContext = result = Tcl_NewListObj(objc + 1, NULL); - Tcl_IncrRefCount(result); - } else { - int len; - - /* - * Reset while keeping the list intrep as much as possible. - */ - - Tcl_ListObjLength(interp, result, &len); - Tcl_ListObjReplace(interp, result, 0, len, 0, NULL); - } - Tcl_ListObjAppendElement(NULL, result, TclNewInstNameObj(*pc)); - - for (; objc>0 ; objc--) { - Tcl_Obj *objPtr; - - objPtr = tosPtr[1 - objc + off]; - if (!objPtr) { - Tcl_Panic("InnerContext: bad tos -- appending null object"); - } - if ((objPtr->refCount<=0) -#ifdef TCL_MEM_DEBUG - || (objPtr->refCount==0x61616161) -#endif - ) { - Tcl_Panic("InnerContext: bad tos -- appending freed object %p", - objPtr); - } - Tcl_ListObjAppendElement(NULL, result, objPtr); - } - - return result; -} - -/* - *---------------------------------------------------------------------- - * - * TclNewInstNameObj -- - * - * Creates a new InstName Tcl_Obj based on the given instruction - * - *---------------------------------------------------------------------- - */ - -Tcl_Obj * -TclNewInstNameObj( - unsigned char inst) -{ - Tcl_Obj *objPtr = Tcl_NewObj(); - - objPtr->typePtr = &tclInstNameType; - objPtr->internalRep.longValue = (long) inst; - objPtr->bytes = NULL; - - return objPtr; -} - -/* - *---------------------------------------------------------------------- - * - * UpdateStringOfInstName -- - * - * Update the string representation for an instruction name object. - * - *---------------------------------------------------------------------- - */ - -static void -UpdateStringOfInstName( - Tcl_Obj *objPtr) -{ - int inst = objPtr->internalRep.longValue; - char *s, buf[20]; - int len; - - if ((inst < 0) || (inst > LAST_INST_OPCODE)) { - sprintf(buf, "inst_%d", inst); - s = buf; - } else { - s = (char *) tclInstructionTable[objPtr->internalRep.longValue].name; - } - len = strlen(s); - objPtr->bytes = ckalloc(len + 1); - memcpy(objPtr->bytes, s, len + 1); - objPtr->length = len; -} - -/* - *---------------------------------------------------------------------- - * - * PrintSourceToObj -- - * - * Appends a quoted representation of a string to a Tcl_Obj. - * - *---------------------------------------------------------------------- - */ - -static void -PrintSourceToObj( - Tcl_Obj *appendObj, /* The object to print the source to. */ - const char *stringPtr, /* The string to print. */ - int maxChars) /* Maximum number of chars to print. */ -{ - register const char *p; - register int i = 0; - - if (stringPtr == NULL) { - Tcl_AppendToObj(appendObj, "\"\"", -1); - return; - } - - Tcl_AppendToObj(appendObj, "\"", -1); - p = stringPtr; - for (; (*p != '\0') && (i < maxChars); p++, i++) { - switch (*p) { - case '"': - Tcl_AppendToObj(appendObj, "\\\"", -1); - continue; - case '\f': - Tcl_AppendToObj(appendObj, "\\f", -1); - continue; - case '\n': - Tcl_AppendToObj(appendObj, "\\n", -1); - continue; - case '\r': - Tcl_AppendToObj(appendObj, "\\r", -1); - continue; - case '\t': - Tcl_AppendToObj(appendObj, "\\t", -1); - continue; - case '\v': - Tcl_AppendToObj(appendObj, "\\v", -1); - continue; - default: - Tcl_AppendPrintfToObj(appendObj, "%c", *p); - continue; - } - } - Tcl_AppendToObj(appendObj, "\"", -1); -} - #ifdef TCL_COMPILE_STATS /* *---------------------------------------------------------------------- |