diff options
Diffstat (limited to 'generic/tclCompile.c')
-rw-r--r-- | generic/tclCompile.c | 287 |
1 files changed, 175 insertions, 112 deletions
diff --git a/generic/tclCompile.c b/generic/tclCompile.c index 41c81af..7afbc33 100644 --- a/generic/tclCompile.c +++ b/generic/tclCompile.c @@ -659,6 +659,23 @@ InstructionDesc const tclInstructionTable[] = { * 0=clicks, 1=microseconds, 2=milliseconds, 3=seconds. * Stack: ... => ... time */ + {"dictGetDef", 5, INT_MIN, 1, {OPERAND_UINT4}}, + /* The top word is the default, the next op4 words (min 1) are a key + * path into the dictionary just below the keys on the stack, and all + * those values are replaced by the value read out of that key-path + * (like [dict get]) except if there is no such key, when instead the + * default is pushed instead. + * Stack: ... dict key1 ... keyN default => ... value */ + + {"strlt", 1, -1, 0, {OPERAND_NONE}}, + /* String Less: push (stknext < stktop) */ + {"strgt", 1, -1, 0, {OPERAND_NONE}}, + /* String Greater: push (stknext > stktop) */ + {"strle", 1, -1, 0, {OPERAND_NONE}}, + /* String Less or equal: push (stknext <= stktop) */ + {"strge", 1, -1, 0, {OPERAND_NONE}}, + /* String Greater or equal: push (stknext >= stktop) */ + {NULL, 0, 0, 0, {OPERAND_NONE}} }; @@ -666,6 +683,7 @@ InstructionDesc const tclInstructionTable[] = { * Prototypes for procedures defined later in this file: */ +static void CleanupByteCode(ByteCode *codePtr); static ByteCode * CompileSubstObj(Tcl_Interp *interp, Tcl_Obj *objPtr, int flags); static void DupByteCodeInternalRep(Tcl_Obj *srcPtr, @@ -681,6 +699,7 @@ static void FreeSubstCodeInternalRep(Tcl_Obj *objPtr); static int GetCmdLocEncodingSize(CompileEnv *envPtr); static int IsCompactibleCompileEnv(Tcl_Interp *interp, CompileEnv *envPtr); +static void PreventCycle(Tcl_Obj *objPtr, CompileEnv *envPtr); #ifdef TCL_COMPILE_STATS static void RecordByteCodeStats(ByteCode *codePtr); #endif /* TCL_COMPILE_STATS */ @@ -723,13 +742,14 @@ static const Tcl_ObjType substCodeType = { NULL, /* updateStringProc */ NULL, /* setFromAnyProc */ }; +#define SubstFlags(objPtr) (objPtr)->internalRep.twoPtrValue.ptr2 /* * Helper macros. */ #define TclIncrUInt4AtPtr(ptr, delta) \ - TclStoreInt4AtPtr(TclGetUInt4AtPtr(ptr)+(delta), (ptr)); + TclStoreInt4AtPtr(TclGetUInt4AtPtr(ptr)+(delta), (ptr)) /* *---------------------------------------------------------------------- @@ -768,7 +788,8 @@ TclSetByteCodeFromAny( Interp *iPtr = (Interp *) interp; CompileEnv compEnv; /* Compilation environment structure allocated * in frame. */ - int length, result = TCL_OK; + size_t length; + int result = TCL_OK; const char *stringPtr; Proc *procPtr = iPtr->compiledProcPtr; ContLineLoc *clLocPtr; @@ -776,14 +797,15 @@ TclSetByteCodeFromAny( #ifdef TCL_COMPILE_DEBUG if (!traceInitialized) { if (Tcl_LinkVar(interp, "tcl_traceCompile", - (char *) &tclTraceCompile, TCL_LINK_INT) != TCL_OK) { + &tclTraceCompile, TCL_LINK_INT) != TCL_OK) { Tcl_Panic("SetByteCodeFromAny: unable to create link for tcl_traceCompile variable"); } traceInitialized = 1; } #endif - stringPtr = TclGetStringFromObj(objPtr, &length); + stringPtr = TclGetString(objPtr); + length = objPtr->length; /* * TIP #280: Pick up the CmdFrame in which the BC compiler was invoked and @@ -871,7 +893,7 @@ TclSetByteCodeFromAny( #endif /*TCL_COMPILE_DEBUG*/ if (result == TCL_OK) { - TclInitByteCodeObj(objPtr, &compEnv); + (void) TclInitByteCodeObj(objPtr, &tclByteCodeType, &compEnv); #ifdef TCL_COMPILE_DEBUG if (tclTraceCompile >= 2) { TclPrintByteCodeObj(interp, objPtr); @@ -968,20 +990,20 @@ DupByteCodeInternalRep( static void FreeByteCodeInternalRep( - register Tcl_Obj *objPtr) /* Object whose internal rep to free. */ + Tcl_Obj *objPtr) /* Object whose internal rep to free. */ { - register ByteCode *codePtr = objPtr->internalRep.twoPtrValue.ptr1; + ByteCode *codePtr; - objPtr->typePtr = NULL; - if (codePtr->refCount-- <= 1) { - TclCleanupByteCode(codePtr); - } + ByteCodeGetIntRep(objPtr, &tclByteCodeType, codePtr); + assert(codePtr != NULL); + + TclReleaseByteCode(codePtr); } /* *---------------------------------------------------------------------- * - * TclCleanupByteCode -- + * TclReleaseByteCode -- * * This procedure does all the real work of freeing up a bytecode * object's ByteCode structure. It's called only when the structure's @@ -998,15 +1020,34 @@ FreeByteCodeInternalRep( */ void -TclCleanupByteCode( - register ByteCode *codePtr) /* Points to the ByteCode to free. */ +TclPreserveByteCode( + ByteCode *codePtr) +{ + codePtr->refCount++; +} + +void +TclReleaseByteCode( + ByteCode *codePtr) +{ + if (codePtr->refCount-- > 1) { + return; + } + + /* Just dropped to refcount==0. Clean up. */ + CleanupByteCode(codePtr); +} + +static void +CleanupByteCode( + ByteCode *codePtr) /* Points to the ByteCode to free. */ { Tcl_Interp *interp = (Tcl_Interp *) *codePtr->interpHandle; Interp *iPtr = (Interp *) interp; int numLitObjects = codePtr->numLitObjects; int numAuxDataItems = codePtr->numAuxDataItems; - register Tcl_Obj **objArrayPtr, *objPtr; - register const AuxData *auxDataPtr; + Tcl_Obj **objArrayPtr, *objPtr; + const AuxData *auxDataPtr; int i; #ifdef TCL_COMPILE_STATS @@ -1265,8 +1306,6 @@ Tcl_NRSubstObj( * * Results: * A (ByteCode *) is returned pointing to the resulting ByteCode. - * The caller must manage its refCount and arrange for a call to - * TclCleanupByteCode() when the last reference disappears. * * Side effects: * The Tcl_ObjType of objPtr is changed to the "substcode" type, and the @@ -1286,24 +1325,26 @@ CompileSubstObj( Interp *iPtr = (Interp *) interp; ByteCode *codePtr = NULL; - if (objPtr->typePtr == &substCodeType) { + ByteCodeGetIntRep(objPtr, &substCodeType, codePtr); + + if (codePtr != NULL) { Namespace *nsPtr = iPtr->varFramePtr->nsPtr; - codePtr = objPtr->internalRep.twoPtrValue.ptr1; - if (flags != PTR2INT(objPtr->internalRep.twoPtrValue.ptr2) + if (flags != PTR2INT(SubstFlags(objPtr)) || ((Interp *) *codePtr->interpHandle != iPtr) || (codePtr->compileEpoch != iPtr->compileEpoch) || (codePtr->nsPtr != nsPtr) || (codePtr->nsEpoch != nsPtr->resolverEpoch) || (codePtr->localCachePtr != iPtr->varFramePtr->localCachePtr)) { - FreeSubstCodeInternalRep(objPtr); + Tcl_StoreIntRep(objPtr, &substCodeType, NULL); + codePtr = NULL; } } - if (objPtr->typePtr != &substCodeType) { + if (codePtr == NULL) { CompileEnv compEnv; int numBytes; - const char *bytes = Tcl_GetStringFromObj(objPtr, &numBytes); + const char *bytes = TclGetStringFromObj(objPtr, &numBytes); /* TODO: Check for more TIP 280 */ TclInitCompileEnv(interp, &compEnv, bytes, numBytes, NULL, 0); @@ -1311,13 +1352,10 @@ CompileSubstObj( TclSubstCompile(interp, bytes, numBytes, flags, 1, &compEnv); TclEmitOpcode(INST_DONE, &compEnv); - TclInitByteCodeObj(objPtr, &compEnv); - objPtr->typePtr = &substCodeType; + codePtr = TclInitByteCodeObj(objPtr, &substCodeType, &compEnv); TclFreeCompileEnv(&compEnv); - codePtr = objPtr->internalRep.twoPtrValue.ptr1; - objPtr->internalRep.twoPtrValue.ptr1 = codePtr; - objPtr->internalRep.twoPtrValue.ptr2 = INT2PTR(flags); + SubstFlags(objPtr) = INT2PTR(flags); if (iPtr->varFramePtr->localCachePtr) { codePtr->localCachePtr = iPtr->varFramePtr->localCachePtr; codePtr->localCachePtr->refCount++; @@ -1354,14 +1392,14 @@ CompileSubstObj( static void FreeSubstCodeInternalRep( - register Tcl_Obj *objPtr) /* Object whose internal rep to free. */ + Tcl_Obj *objPtr) /* Object whose internal rep to free. */ { - register ByteCode *codePtr = objPtr->internalRep.twoPtrValue.ptr1; + ByteCode *codePtr; - objPtr->typePtr = NULL; - if (codePtr->refCount-- <= 1) { - TclCleanupByteCode(codePtr); - } + ByteCodeGetIntRep(objPtr, &substCodeType, codePtr); + assert(codePtr != NULL); + + TclReleaseByteCode(codePtr); } static void @@ -1374,14 +1412,14 @@ ReleaseCmdWordData( Tcl_DecrRefCount(eclPtr->path); } for (i=0 ; i<eclPtr->nuloc ; i++) { - ckfree((char *) eclPtr->loc[i].line); + ckfree(eclPtr->loc[i].line); } if (eclPtr->loc != NULL) { - ckfree((char *) eclPtr->loc); + ckfree(eclPtr->loc); } - ckfree((char *) eclPtr); + ckfree(eclPtr); } /* @@ -1405,7 +1443,7 @@ void TclInitCompileEnv( Tcl_Interp *interp, /* The interpreter for which a CompileEnv * structure is initialized. */ - register CompileEnv *envPtr,/* Points to the CompileEnv structure to + CompileEnv *envPtr,/* Points to the CompileEnv structure to * initialize. */ const char *stringPtr, /* The source string to be compiled. */ int numBytes, /* Number of bytes in source string. */ @@ -1612,7 +1650,7 @@ TclInitCompileEnv( void TclFreeCompileEnv( - register CompileEnv *envPtr)/* Points to the CompileEnv structure. */ + CompileEnv *envPtr)/* Points to the CompileEnv structure. */ { if (envPtr->localLitTable.buckets != envPtr->localLitTable.staticBuckets){ ckfree(envPtr->localLitTable.buckets); @@ -1723,7 +1761,7 @@ TclWordKnownAtCompileTime( case TCL_TOKEN_BS: if (tempPtr != NULL) { - char utfBuf[TCL_UTF_MAX] = ""; + char utfBuf[4] = ""; int length = TclParseBackslash(tokenPtr->start, tokenPtr->size, NULL, utfBuf); @@ -1795,8 +1833,8 @@ CompileCmdLiteral( extraLiteralFlags |= LITERAL_UNSHARED; } - bytes = Tcl_GetStringFromObj(cmdObj, &numBytes); - cmdLitIdx = TclRegisterLiteral(envPtr, (char *)bytes, numBytes, extraLiteralFlags); + bytes = TclGetStringFromObj(cmdObj, &numBytes); + cmdLitIdx = TclRegisterLiteral(envPtr, bytes, numBytes, extraLiteralFlags); if (cmdPtr) { TclSetCmdNameObj(interp, TclFetchLiteral(envPtr, cmdLitIdx), cmdPtr); @@ -1831,8 +1869,8 @@ TclCompileInvocation( continue; } - objIdx = TclRegisterNewLiteral(envPtr, - tokenPtr[1].start, tokenPtr[1].size); + objIdx = TclRegisterLiteral(envPtr, + tokenPtr[1].start, tokenPtr[1].size, 0); if (envPtr->clNext) { TclContinuationsEnterDerived(TclFetchLiteral(envPtr, objIdx), tokenPtr[1].start - envPtr->source, envPtr->clNext); @@ -1881,8 +1919,8 @@ CompileExpanded( continue; } - objIdx = TclRegisterNewLiteral(envPtr, - tokenPtr[1].start, tokenPtr[1].size); + objIdx = TclRegisterLiteral(envPtr, + tokenPtr[1].start, tokenPtr[1].size, 0); if (envPtr->clNext) { TclContinuationsEnterDerived(TclFetchLiteral(envPtr, objIdx), tokenPtr[1].start - envPtr->source, envPtr->clNext); @@ -2371,7 +2409,7 @@ TclCompileTokens( { Tcl_DString textBuffer; /* Holds concatenated chars from adjacent * TCL_TOKEN_TEXT, TCL_TOKEN_BS tokens. */ - char buffer[TCL_UTF_MAX] = ""; + char buffer[4] = ""; int i, numObjsToConcat, length, adjust; unsigned char *entryCodeNext = envPtr->codeNext; #define NUM_STATIC_POS 20 @@ -2744,18 +2782,47 @@ TclCompileNoOp( *---------------------------------------------------------------------- */ -void -TclInitByteCodeObj( - Tcl_Obj *objPtr, /* Points object that should be initialized, - * and whose string rep contains the source - * code. */ - register CompileEnv *envPtr)/* Points to the CompileEnv structure from +static void +PreventCycle( + Tcl_Obj *objPtr, + CompileEnv *envPtr) +{ + int i; + + for (i = 0; i < envPtr->literalArrayNext; i++) { + if (objPtr == TclFetchLiteral(envPtr, i)) { + /* + * Prevent circular reference where the bytecode intrep of + * a value contains a literal which is that same value. + * If this is allowed to happen, refcount decrements may not + * reach zero, and memory may leak. Bugs 467523, 3357771 + * + * NOTE: [Bugs 3392070, 3389764] We make a copy based completely + * on the string value, and do not call Tcl_DuplicateObj() so we + * can be sure we do not have any lingering cycles hiding in + * the intrep. + */ + int numBytes; + const char *bytes = TclGetStringFromObj(objPtr, &numBytes); + Tcl_Obj *copyPtr = Tcl_NewStringObj(bytes, numBytes); + + Tcl_IncrRefCount(copyPtr); + TclReleaseLiteral((Tcl_Interp *)envPtr->iPtr, objPtr); + + envPtr->literalArrayPtr[i].objPtr = copyPtr; + } + } +} + +ByteCode * +TclInitByteCode( + CompileEnv *envPtr)/* Points to the CompileEnv structure from * which to create a ByteCode structure. */ { - register ByteCode *codePtr; + ByteCode *codePtr; size_t codeBytes, objArrayBytes, exceptArrayBytes, cmdLocBytes; size_t auxDataArrayBytes, structureSize; - register unsigned char *p; + unsigned char *p; #ifdef TCL_COMPILE_DEBUG unsigned char *nextPtr; #endif @@ -2799,7 +2866,8 @@ TclInitByteCodeObj( codePtr->compileEpoch = iPtr->compileEpoch; codePtr->nsPtr = namespacePtr; codePtr->nsEpoch = namespacePtr->resolverEpoch; - codePtr->refCount = 1; + codePtr->refCount = 0; + TclPreserveByteCode(codePtr); if (namespacePtr->compiledVarResProc || iPtr->resolverPtr) { codePtr->flags = TCL_BYTECODE_RESOLVE_VARS; } else { @@ -2820,40 +2888,18 @@ TclInitByteCodeObj( p += sizeof(ByteCode); codePtr->codeStart = p; - memcpy(p, envPtr->codeStart, (size_t) codeBytes); + memcpy(p, envPtr->codeStart, codeBytes); p += TCL_ALIGN(codeBytes); /* align object array */ codePtr->objArrayPtr = (Tcl_Obj **) p; for (i = 0; i < numLitObjects; i++) { - Tcl_Obj *fetched = TclFetchLiteral(envPtr, i); - - if (objPtr == fetched) { - /* - * Prevent circular reference where the bytecode intrep of - * a value contains a literal which is that same value. - * If this is allowed to happen, refcount decrements may not - * reach zero, and memory may leak. Bugs 467523, 3357771 - * - * NOTE: [Bugs 3392070, 3389764] We make a copy based completely - * on the string value, and do not call Tcl_DuplicateObj() so we - * can be sure we do not have any lingering cycles hiding in - * the intrep. - */ - int numBytes; - const char *bytes = Tcl_GetStringFromObj(objPtr, &numBytes); - - codePtr->objArrayPtr[i] = Tcl_NewStringObj(bytes, numBytes); - Tcl_IncrRefCount(codePtr->objArrayPtr[i]); - TclReleaseLiteral((Tcl_Interp *)iPtr, objPtr); - } else { - codePtr->objArrayPtr[i] = fetched; - } + codePtr->objArrayPtr[i] = TclFetchLiteral(envPtr, i); } p += TCL_ALIGN(objArrayBytes); /* align exception range array */ if (exceptArrayBytes > 0) { codePtr->exceptArrayPtr = (ExceptionRange *) p; - memcpy(p, envPtr->exceptArrayPtr, (size_t) exceptArrayBytes); + memcpy(p, envPtr->exceptArrayPtr, exceptArrayBytes); } else { codePtr->exceptArrayPtr = NULL; } @@ -2861,7 +2907,7 @@ TclInitByteCodeObj( p += TCL_ALIGN(exceptArrayBytes); /* align AuxData array */ if (auxDataArrayBytes > 0) { codePtr->auxDataArrayPtr = (AuxData *) p; - memcpy(p, envPtr->auxDataArrayPtr, (size_t) auxDataArrayBytes); + memcpy(p, envPtr->auxDataArrayPtr, auxDataArrayBytes); } else { codePtr->auxDataArrayPtr = NULL; } @@ -2890,15 +2936,6 @@ TclInitByteCodeObj( #endif /* TCL_COMPILE_STATS */ /* - * Free the old internal rep then convert the object to a bytecode object - * by making its internal rep point to the just compiled ByteCode. - */ - - TclFreeIntRep(objPtr); - objPtr->internalRep.twoPtrValue.ptr1 = codePtr; - objPtr->typePtr = &tclByteCodeType; - - /* * TIP #280. Associate the extended per-word line information with the * byte code object (internal rep), for use with the bc compiler. */ @@ -2911,6 +2948,31 @@ TclInitByteCodeObj( envPtr->iPtr = NULL; codePtr->localCachePtr = NULL; + return codePtr; +} + +ByteCode * +TclInitByteCodeObj( + Tcl_Obj *objPtr, /* Points object that should be initialized, + * and whose string rep contains the source + * code. */ + const Tcl_ObjType *typePtr, + CompileEnv *envPtr)/* Points to the CompileEnv structure from + * which to create a ByteCode structure. */ +{ + ByteCode *codePtr; + + PreventCycle(objPtr, envPtr); + + codePtr = TclInitByteCode(envPtr); + + /* + * Free the old internal rep then convert the object to a bytecode object + * by making its internal rep point to the just compiled ByteCode. + */ + + ByteCodeSetIntRep(objPtr, typePtr, codePtr); + return codePtr; } /* @@ -2940,7 +3002,7 @@ TclInitByteCodeObj( int TclFindCompiledLocal( - register const char *name, /* Points to first character of the name of a + const char *name, /* Points to first character of the name of a * scalar or array variable. If NULL, a * temporary var should be created. */ int nameBytes, /* Number of bytes in the name. */ @@ -2948,9 +3010,9 @@ TclFindCompiledLocal( * variable if it is new. */ CompileEnv *envPtr) /* Points to the current compile environment*/ { - register CompiledLocal *localPtr; + CompiledLocal *localPtr; int localVar = -1; - register int i; + int i; Proc *procPtr; /* @@ -2978,7 +3040,8 @@ TclFindCompiledLocal( varNamePtr = &cachePtr->varName0; for (i=0; i < cachePtr->numVars; varNamePtr++, i++) { if (*varNamePtr) { - localName = Tcl_GetStringFromObj(*varNamePtr, &len); + localName = TclGetString(*varNamePtr); + len = (*varNamePtr)->length; if ((len == nameBytes) && !strncmp(name, localName, len)) { return i; } @@ -2996,7 +3059,7 @@ TclFindCompiledLocal( char *localName = localPtr->name; if ((nameBytes == localPtr->nameLength) && - (strncmp(name,localName,(unsigned)nameBytes) == 0)) { + (strncmp(name, localName, nameBytes) == 0)) { return i; } } @@ -3010,7 +3073,7 @@ TclFindCompiledLocal( if (create || (name == NULL)) { localVar = procPtr->numCompiledLocals; - localPtr = ckalloc(TclOffset(CompiledLocal, name) + nameBytes + 1); + localPtr = ckalloc(offsetof(CompiledLocal, name) + nameBytes + 1); if (procPtr->firstLocalPtr == NULL) { procPtr->firstLocalPtr = procPtr->lastLocalPtr = localPtr; } else { @@ -3028,7 +3091,7 @@ TclFindCompiledLocal( localPtr->resolveInfo = NULL; if (name != NULL) { - memcpy(localPtr->name, name, (size_t) nameBytes); + memcpy(localPtr->name, name, nameBytes); } localPtr->name[nameBytes] = '\0'; procPtr->numCompiledLocals++; @@ -3322,11 +3385,11 @@ EnterCmdWordData( int TclCreateExceptRange( ExceptionRangeType type, /* The kind of ExceptionRange desired. */ - register CompileEnv *envPtr)/* Points to CompileEnv for which to create a + CompileEnv *envPtr)/* Points to CompileEnv for which to create a * new ExceptionRange structure. */ { - register ExceptionRange *rangePtr; - register ExceptionAux *auxPtr; + ExceptionRange *rangePtr; + ExceptionAux *auxPtr; int index = envPtr->exceptArrayNext; if (index >= envPtr->exceptArrayEnd) { @@ -3690,11 +3753,11 @@ TclCreateAuxData( * the new aux data record. */ const AuxDataType *typePtr, /* Pointer to the type to attach to this * AuxData */ - register CompileEnv *envPtr)/* Points to the CompileEnv for which a new + CompileEnv *envPtr)/* Points to the CompileEnv for which a new * aux data structure is to be allocated. */ { int index; /* Index for the new AuxData structure. */ - register AuxData *auxDataPtr; + AuxData *auxDataPtr; /* Points to the new AuxData structure */ index = envPtr->auxDataArrayNext; @@ -3753,7 +3816,7 @@ TclCreateAuxData( void TclInitJumpFixupArray( - register JumpFixupArray *fixupArrayPtr) + JumpFixupArray *fixupArrayPtr) /* Points to the JumpFixupArray structure to * initialize. */ { @@ -3785,7 +3848,7 @@ TclInitJumpFixupArray( void TclExpandJumpFixupArray( - register JumpFixupArray *fixupArrayPtr) + JumpFixupArray *fixupArrayPtr) /* Points to the JumpFixupArray structure to * enlarge. */ { @@ -3834,7 +3897,7 @@ TclExpandJumpFixupArray( void TclFreeJumpFixupArray( - register JumpFixupArray *fixupArrayPtr) + JumpFixupArray *fixupArrayPtr) /* Points to the JumpFixupArray structure to * free. */ { @@ -4281,7 +4344,7 @@ GetCmdLocEncodingSize( * containing the CmdLocation structure to * encode. */ { - register CmdLocation *mapPtr = envPtr->cmdMapPtr; + CmdLocation *mapPtr = envPtr->cmdMapPtr; int numCmds = envPtr->numCommands; int codeDelta, codeLen, srcDelta, srcLen; int codeDeltaNext, codeLengthNext, srcDeltaNext, srcLengthNext; @@ -4365,11 +4428,11 @@ EncodeCmdLocMap( * memory block where the location information * is to be stored. */ { - register CmdLocation *mapPtr = envPtr->cmdMapPtr; + CmdLocation *mapPtr = envPtr->cmdMapPtr; int numCmds = envPtr->numCommands; - register unsigned char *p = startPtr; + unsigned char *p = startPtr; int codeDelta, codeLen, srcDelta, srcLen, prevOffset; - register int i; + int i; /* * Encode the code offset for each command as a sequence of deltas. @@ -4483,7 +4546,7 @@ RecordByteCodeStats( * to add to accumulated statistics. */ { Interp *iPtr = (Interp *) *codePtr->interpHandle; - register ByteCodeStats *statsPtr; + ByteCodeStats *statsPtr; if (iPtr == NULL) { /* Avoid segfaulting in case we're called in a deleted interp */ |