diff options
44 files changed, 1512 insertions, 985 deletions
diff --git a/compat/zlib/win32/zdll.lib b/compat/zlib/win32/zdll.lib Binary files differindex a3e9a39..a3e9a39 100755..100644 --- a/compat/zlib/win32/zdll.lib +++ b/compat/zlib/win32/zdll.lib diff --git a/compat/zlib/zlib2ansi b/compat/zlib/zlib2ansi index 15e3e16..15e3e16 100755..100644 --- a/compat/zlib/zlib2ansi +++ b/compat/zlib/zlib2ansi diff --git a/generic/tcl.decls b/generic/tcl.decls index b2b91a9..a766402 100644 --- a/generic/tcl.decls +++ b/generic/tcl.decls @@ -2333,9 +2333,26 @@ declare 631 { ClientData callbackData) } -# ----- BASELINE -- FOR -- 8.7.0 ----- # - +# TIP #445 +declare 632 { + void Tcl_FreeIntRep(Tcl_Obj *objPtr) +} +declare 633 { + char *Tcl_InitStringRep(Tcl_Obj *objPtr, const char *bytes, + unsigned int numBytes) +} +declare 634 { + Tcl_ObjIntRep *Tcl_FetchIntRep(Tcl_Obj *objPtr, const Tcl_ObjType *typePtr) +} +declare 635 { + void Tcl_StoreIntRep(Tcl_Obj *objPtr, const Tcl_ObjType *typePtr, + const Tcl_ObjIntRep *irPtr) +} +declare 636 { + int Tcl_HasStringRep(Tcl_Obj *objPtr) +} +# ----- BASELINE -- FOR -- 8.7.0 ----- # ############################################################################## diff --git a/generic/tcl.h b/generic/tcl.h index 07d841d..bffdfdc 100644 --- a/generic/tcl.h +++ b/generic/tcl.h @@ -798,6 +798,29 @@ typedef struct Tcl_ObjType { } Tcl_ObjType; /* + * The following structure stores an internal representation (intrep) for + * a Tcl value. An intrep is associated with an Tcl_ObjType when both + * are stored in the same Tcl_Obj. The routines of the Tcl_ObjType govern + * the handling of the intrep. + */ + +typedef union Tcl_ObjIntRep { /* The internal representation: */ + long longValue; /* - an long integer value. */ + double doubleValue; /* - a double-precision floating value. */ + void *otherValuePtr; /* - another, type-specific value, */ + /* not used internally any more. */ + Tcl_WideInt wideValue; /* - an integer value >= 64bits */ + struct { /* - internal rep as two pointers. */ + void *ptr1; + void *ptr2; + } twoPtrValue; + struct { /* - internal rep as a pointer and a long, */ + void *ptr; /* not used internally any more. */ + unsigned long value; + } ptrAndLongRep; +} Tcl_ObjIntRep; + +/* * One of the following structures exists for each object in the Tcl system. * An object stores a value as either a string, some internal representation, * or both. @@ -822,27 +845,7 @@ typedef struct Tcl_Obj { * corresponds to the type of the object's * internal rep. NULL indicates the object has * no internal rep (has no type). */ - union { /* The internal representation: */ - long longValue; /* - an long integer value. */ - double doubleValue; /* - a double-precision floating value. */ - void *otherValuePtr; /* - another, type-specific value, not used - * internally any more. */ - Tcl_WideInt wideValue; /* - a long long value. */ - struct { /* - internal rep as two pointers. - * Many uses in Tcl, including a bignum's - * tightly packed fields, where the alloc, - * used and signum flags are packed into - * ptr2 with everything else hung off - * ptr1. */ - void *ptr1; - void *ptr2; - } twoPtrValue; - struct { /* - internal rep as a pointer and a long, - * not used internally any more. */ - void *ptr; - unsigned long value; - } ptrAndLongRep; - } internalRep; + Tcl_ObjIntRep internalRep; /* The internal representation: */ } Tcl_Obj; /* diff --git a/generic/tclAssembly.c b/generic/tclAssembly.c index 4c5ae68..e184f3e 100644 --- a/generic/tclAssembly.c +++ b/generic/tclAssembly.c @@ -32,6 +32,7 @@ #include "tclInt.h" #include "tclCompile.h" #include "tclOOInt.h" +#include <assert.h> /* * Structure that represents a range of instructions in the bytecode. @@ -271,15 +272,12 @@ static void CompileEmbeddedScript(AssemblyEnv*, Tcl_Token*, const TalInstDesc*); static int DefineLabel(AssemblyEnv* envPtr, const char* label); static void DeleteMirrorJumpTable(JumptableInfo* jtPtr); -static void DupAssembleCodeInternalRep(Tcl_Obj* src, - Tcl_Obj* dest); static void FillInJumpOffsets(AssemblyEnv*); static int CreateMirrorJumpTable(AssemblyEnv* assemEnvPtr, Tcl_Obj* jumpTable); static int FindLocalVar(AssemblyEnv* envPtr, Tcl_Token** tokenPtrPtr); static int FinishAssembly(AssemblyEnv*); -static void FreeAssembleCodeInternalRep(Tcl_Obj *objPtr); static void FreeAssemblyEnv(AssemblyEnv*); static int GetBooleanOperand(AssemblyEnv*, Tcl_Token**, int*); static int GetListIndexOperand(AssemblyEnv*, Tcl_Token**, int*); @@ -318,6 +316,9 @@ static void UnstackExpiredCatches(CompileEnv*, BasicBlock*, int, * Tcl_ObjType that describes bytecode emitted by the assembler. */ +static Tcl_FreeInternalRepProc FreeAssembleCodeInternalRep; +static Tcl_DupInternalRepProc DupAssembleCodeInternalRep; + static const Tcl_ObjType assembleCodeType = { "assemblecode", FreeAssembleCodeInternalRep, /* freeIntRepProc */ @@ -847,15 +848,15 @@ CompileAssembleObj( const char* source; /* String representation of the source code */ int sourceLen; /* Length of the source code in bytes */ - /* * Get the expression ByteCode from the object. If it exists, make sure it * is valid in the current context. */ - if (objPtr->typePtr == &assembleCodeType) { + ByteCodeGetIntRep(objPtr, &assembleCodeType, codePtr); + + if (codePtr) { namespacePtr = iPtr->varFramePtr->nsPtr; - codePtr = objPtr->internalRep.twoPtrValue.ptr1; if (((Interp *) *codePtr->interpHandle == iPtr) && (codePtr->compileEpoch == iPtr->compileEpoch) && (codePtr->nsPtr == namespacePtr) @@ -869,7 +870,7 @@ CompileAssembleObj( * Not valid, so free it and regenerate. */ - TclFreeIntRep(objPtr); + Tcl_StoreIntRep(objPtr, &assembleCodeType, NULL); } /* @@ -4331,7 +4332,10 @@ static void FreeAssembleCodeInternalRep( Tcl_Obj *objPtr) { - ByteCode *codePtr = objPtr->internalRep.twoPtrValue.ptr1; + ByteCode *codePtr; + + ByteCodeGetIntRep(objPtr, &assembleCodeType, codePtr); + assert(codePtr != NULL); TclReleaseByteCode(codePtr); } diff --git a/generic/tclBasic.c b/generic/tclBasic.c index d4fa833..14d4fe1 100644 --- a/generic/tclBasic.c +++ b/generic/tclBasic.c @@ -3570,9 +3570,14 @@ OldMathFuncProc( valuePtr = objv[j]; result = Tcl_GetDoubleFromObj(NULL, valuePtr, &d); #ifdef ACCEPT_NAN - if ((result != TCL_OK) && (valuePtr->typePtr == &tclDoubleType)) { - d = valuePtr->internalRep.doubleValue; - result = TCL_OK; + if (result != TCL_OK) { + const Tcl_ObjIntRep *irPtr + = Tcl_FetchIntRep(valuePtr, &tclDoubleType); + + if (irPtr) { + d = irPtr->doubleValue; + result = TCL_OK; + } } #endif if (result != TCL_OK) { @@ -5845,7 +5850,7 @@ TclArgumentGet( * up by the caller. It knows better than us. */ - if ((obj->bytes == NULL) || TclListObjIsCanonical(obj)) { + if (!TclHasStringRep(obj) || TclListObjIsCanonical(obj)) { return; } @@ -7122,9 +7127,13 @@ ExprCeilFunc( } code = Tcl_GetDoubleFromObj(interp, objv[1], &d); #ifdef ACCEPT_NAN - if ((code != TCL_OK) && (objv[1]->typePtr == &tclDoubleType)) { - Tcl_SetObjResult(interp, objv[1]); - return TCL_OK; + if (code != TCL_OK) { + const Tcl_ObjIntRep *irPtr = Tcl_FetchIntRep(objv[1], &tclDoubleType); + + if (irPtr) { + Tcl_SetObjResult(interp, objv[1]); + return TCL_OK; + } } #endif if (code != TCL_OK) { @@ -7158,9 +7167,13 @@ ExprFloorFunc( } code = Tcl_GetDoubleFromObj(interp, objv[1], &d); #ifdef ACCEPT_NAN - if ((code != TCL_OK) && (objv[1]->typePtr == &tclDoubleType)) { - Tcl_SetObjResult(interp, objv[1]); - return TCL_OK; + if (code != TCL_OK) { + const Tcl_ObjIntRep *irPtr = Tcl_FetchIntRep(objv[1], &tclDoubleType); + + if (irPtr) { + Tcl_SetObjResult(interp, objv[1]); + return TCL_OK; + } } #endif if (code != TCL_OK) { @@ -7294,9 +7307,13 @@ ExprSqrtFunc( } code = Tcl_GetDoubleFromObj(interp, objv[1], &d); #ifdef ACCEPT_NAN - if ((code != TCL_OK) && (objv[1]->typePtr == &tclDoubleType)) { - Tcl_SetObjResult(interp, objv[1]); - return TCL_OK; + if (code != TCL_OK) { + const Tcl_ObjIntRep *irPtr = Tcl_FetchIntRep(objv[1], &tclDoubleType); + + if (irPtr) { + Tcl_SetObjResult(interp, objv[1]); + return TCL_OK; + } } #endif if (code != TCL_OK) { @@ -7337,10 +7354,14 @@ ExprUnaryFunc( } code = Tcl_GetDoubleFromObj(interp, objv[1], &d); #ifdef ACCEPT_NAN - if ((code != TCL_OK) && (objv[1]->typePtr == &tclDoubleType)) { - d = objv[1]->internalRep.doubleValue; - Tcl_ResetResult(interp); - code = TCL_OK; + if (code != TCL_OK) { + const Tcl_ObjIntRep *irPtr = Tcl_FetchIntRep(objv[1], &tclDoubleType); + + if (irPtr) { + d = irPtr->doubleValue; + Tcl_ResetResult(interp); + code = TCL_OK; + } } #endif if (code != TCL_OK) { @@ -7397,10 +7418,14 @@ ExprBinaryFunc( } code = Tcl_GetDoubleFromObj(interp, objv[1], &d1); #ifdef ACCEPT_NAN - if ((code != TCL_OK) && (objv[1]->typePtr == &tclDoubleType)) { - d1 = objv[1]->internalRep.doubleValue; - Tcl_ResetResult(interp); - code = TCL_OK; + if (code != TCL_OK) { + const Tcl_ObjIntRep *irPtr = Tcl_FetchIntRep(objv[1], &tclDoubleType); + + if (irPtr) { + d1 = irPtr->doubleValue; + Tcl_ResetResult(interp); + code = TCL_OK; + } } #endif if (code != TCL_OK) { @@ -7408,10 +7433,14 @@ ExprBinaryFunc( } code = Tcl_GetDoubleFromObj(interp, objv[2], &d2); #ifdef ACCEPT_NAN - if ((code != TCL_OK) && (objv[2]->typePtr == &tclDoubleType)) { - d2 = objv[2]->internalRep.doubleValue; - Tcl_ResetResult(interp); - code = TCL_OK; + if (code != TCL_OK) { + const Tcl_ObjIntRep *irPtr = Tcl_FetchIntRep(objv[1], &tclDoubleType); + + if (irPtr) { + d2 = irPtr->doubleValue; + Tcl_ResetResult(interp); + code = TCL_OK; + } } #endif if (code != TCL_OK) { @@ -7448,14 +7477,16 @@ ExprAbsFunc( if (l > (long)0) { goto unChanged; } else if (l == (long)0) { - const char *string = objv[1]->bytes; - if (string) { - while (*string != '0') { - if (*string == '-') { + if (TclHasStringRep(objv[1])) { + int numBytes; + const char *bytes = TclGetStringFromObj(objv[1], &numBytes); + + while (numBytes) { + if (*bytes == '-') { Tcl_SetObjResult(interp, Tcl_NewLongObj(0)); return TCL_OK; } - string++; + bytes++; numBytes--; } } goto unChanged; @@ -7567,7 +7598,7 @@ ExprDoubleFunc( } if (Tcl_GetDoubleFromObj(interp, objv[1], &dResult) != TCL_OK) { #ifdef ACCEPT_NAN - if (objv[1]->typePtr == &tclDoubleType) { + if (Tcl_FetchIntRep(objv[1], &tclDoubleType)) { Tcl_SetObjResult(interp, objv[1]); return TCL_OK; } diff --git a/generic/tclBinary.c b/generic/tclBinary.c index cb5a5cb..45cafdf 100644 --- a/generic/tclBinary.c +++ b/generic/tclBinary.c @@ -15,6 +15,7 @@ #include "tommath.h" #include <math.h> +#include <assert.h> /* * The following constants are used by GetFormatSpec to indicate various @@ -56,9 +57,12 @@ static void DupByteArrayInternalRep(Tcl_Obj *srcPtr, Tcl_Obj *copyPtr); +static void DupProperByteArrayInternalRep(Tcl_Obj *srcPtr, + Tcl_Obj *copyPtr); static int FormatNumber(Tcl_Interp *interp, int type, Tcl_Obj *src, unsigned char **cursorPtr); static void FreeByteArrayInternalRep(Tcl_Obj *objPtr); +static void FreeProperByteArrayInternalRep(Tcl_Obj *objPtr); static int GetFormatSpec(const char **formatPtr, char *cmdPtr, int *countPtr, int *flagsPtr); static Tcl_Obj * ScanNumber(unsigned char *buffer, int type, @@ -246,8 +250,8 @@ static const EnsembleImplMap decodeMap[] = { static const Tcl_ObjType properByteArrayType = { "bytearray", - FreeByteArrayInternalRep, - DupByteArrayInternalRep, + FreeProperByteArrayInternalRep, + DupProperByteArrayInternalRep, UpdateStringOfByteArray, NULL }; @@ -268,9 +272,9 @@ const Tcl_ObjType tclByteArrayType = { */ typedef struct ByteArray { - int used; /* The number of bytes used in the byte + unsigned int used; /* The number of bytes used in the byte * array. */ - int allocated; /* The amount of space actually allocated + unsigned int allocated; /* The amount of space actually allocated * minus 1 byte. */ unsigned char bytes[1]; /* The array of bytes. The actual size of this * field depends on the 'allocated' field @@ -279,16 +283,15 @@ typedef struct ByteArray { #define BYTEARRAY_SIZE(len) \ ((unsigned) (TclOffset(ByteArray, bytes) + (len))) -#define GET_BYTEARRAY(objPtr) \ - ((ByteArray *) (objPtr)->internalRep.twoPtrValue.ptr1) -#define SET_BYTEARRAY(objPtr, baPtr) \ - (objPtr)->internalRep.twoPtrValue.ptr1 = (void *) (baPtr) +#define GET_BYTEARRAY(irPtr) ((ByteArray *) (irPtr)->twoPtrValue.ptr1) +#define SET_BYTEARRAY(irPtr, baPtr) \ + (irPtr)->twoPtrValue.ptr1 = (void *) (baPtr) int TclIsPureByteArray( Tcl_Obj * objPtr) { - return (objPtr->typePtr == &properByteArrayType); + return (NULL != Tcl_FetchIntRep(objPtr, &properByteArrayType)); } /* @@ -403,11 +406,11 @@ Tcl_SetByteArrayObj( be >= 0. */ { ByteArray *byteArrayPtr; + Tcl_ObjIntRep ir; if (Tcl_IsShared(objPtr)) { Tcl_Panic("%s called with shared object", "Tcl_SetByteArrayObj"); } - TclFreeIntRep(objPtr); TclInvalidateStringRep(objPtr); if (length < 0) { @@ -420,8 +423,9 @@ Tcl_SetByteArrayObj( if ((bytes != NULL) && (length > 0)) { memcpy(byteArrayPtr->bytes, bytes, (size_t) length); } - objPtr->typePtr = &properByteArrayType; - SET_BYTEARRAY(objPtr, byteArrayPtr); + SET_BYTEARRAY(&ir, byteArrayPtr); + + Tcl_StoreIntRep(objPtr, &properByteArrayType, &ir); } /* @@ -449,17 +453,24 @@ Tcl_GetByteArrayFromObj( * array of bytes in the ByteArray object. */ { ByteArray *baPtr; + const Tcl_ObjIntRep *irPtr = Tcl_FetchIntRep(objPtr, &properByteArrayType); - if ((objPtr->typePtr != &properByteArrayType) - && (objPtr->typePtr != &tclByteArrayType)) { - SetByteArrayFromAny(NULL, objPtr); + if (irPtr == NULL) { + irPtr = Tcl_FetchIntRep(objPtr, &tclByteArrayType); + if (irPtr == NULL) { + SetByteArrayFromAny(NULL, objPtr); + irPtr = Tcl_FetchIntRep(objPtr, &properByteArrayType); + if (irPtr == NULL) { + irPtr = Tcl_FetchIntRep(objPtr, &tclByteArrayType); + } + } } - baPtr = GET_BYTEARRAY(objPtr); + baPtr = GET_BYTEARRAY(irPtr); if (lengthPtr != NULL) { *lengthPtr = baPtr->used; } - return (unsigned char *) baPtr->bytes; + return baPtr->bytes; } /* @@ -490,23 +501,36 @@ Tcl_SetByteArrayLength( int length) /* New length for internal byte array. */ { ByteArray *byteArrayPtr; + unsigned newLength; + Tcl_ObjIntRep *irPtr; + + assert(length >= 0); + newLength = (unsigned int)length; if (Tcl_IsShared(objPtr)) { Tcl_Panic("%s called with shared object", "Tcl_SetByteArrayLength"); } - if ((objPtr->typePtr != &properByteArrayType) - && (objPtr->typePtr != &tclByteArrayType)) { - SetByteArrayFromAny(NULL, objPtr); + + irPtr = Tcl_FetchIntRep(objPtr, &properByteArrayType); + if (irPtr == NULL) { + irPtr = Tcl_FetchIntRep(objPtr, &tclByteArrayType); + if (irPtr == NULL) { + SetByteArrayFromAny(NULL, objPtr); + irPtr = Tcl_FetchIntRep(objPtr, &properByteArrayType); + if (irPtr == NULL) { + irPtr = Tcl_FetchIntRep(objPtr, &tclByteArrayType); + } + } } - byteArrayPtr = GET_BYTEARRAY(objPtr); - if (length > byteArrayPtr->allocated) { - byteArrayPtr = ckrealloc(byteArrayPtr, BYTEARRAY_SIZE(length)); - byteArrayPtr->allocated = length; - SET_BYTEARRAY(objPtr, byteArrayPtr); + byteArrayPtr = GET_BYTEARRAY(irPtr); + if (newLength > byteArrayPtr->allocated) { + byteArrayPtr = ckrealloc(byteArrayPtr, BYTEARRAY_SIZE(newLength)); + byteArrayPtr->allocated = newLength; + SET_BYTEARRAY(irPtr, byteArrayPtr); } TclInvalidateStringRep(objPtr); - byteArrayPtr->used = length; + byteArrayPtr->used = newLength; return byteArrayPtr->bytes; } @@ -536,12 +560,12 @@ SetByteArrayFromAny( const char *src, *srcEnd; unsigned char *dst; ByteArray *byteArrayPtr; - Tcl_UniChar ch = 0; + Tcl_ObjIntRep ir; - if (objPtr->typePtr == &properByteArrayType) { + if (Tcl_FetchIntRep(objPtr, &properByteArrayType)) { return TCL_OK; } - if (objPtr->typePtr == &tclByteArrayType) { + if (Tcl_FetchIntRep(objPtr, &tclByteArrayType)) { return TCL_OK; } @@ -551,6 +575,7 @@ SetByteArrayFromAny( byteArrayPtr = ckalloc(BYTEARRAY_SIZE(length)); for (dst = byteArrayPtr->bytes; src < srcEnd; ) { + Tcl_UniChar ch = 0; src += TclUtfToUniChar(src, &ch); improper = improper || (ch > 255); *dst++ = UCHAR(ch); @@ -559,9 +584,9 @@ SetByteArrayFromAny( byteArrayPtr->used = dst - byteArrayPtr->bytes; byteArrayPtr->allocated = length; - TclFreeIntRep(objPtr); - objPtr->typePtr = improper ? &tclByteArrayType : &properByteArrayType; - SET_BYTEARRAY(objPtr, byteArrayPtr); + SET_BYTEARRAY(&ir, byteArrayPtr); + Tcl_StoreIntRep(objPtr, + improper ? &tclByteArrayType : &properByteArrayType, &ir); return TCL_OK; } @@ -586,8 +611,14 @@ static void FreeByteArrayInternalRep( Tcl_Obj *objPtr) /* Object with internal rep to free. */ { - ckfree(GET_BYTEARRAY(objPtr)); - objPtr->typePtr = NULL; + ckfree(GET_BYTEARRAY(Tcl_FetchIntRep(objPtr, &tclByteArrayType))); +} + +static void +FreeProperByteArrayInternalRep( + Tcl_Obj *objPtr) /* Object with internal rep to free. */ +{ + ckfree(GET_BYTEARRAY(Tcl_FetchIntRep(objPtr, &properByteArrayType))); } /* @@ -612,19 +643,41 @@ DupByteArrayInternalRep( Tcl_Obj *srcPtr, /* Object with internal rep to copy. */ Tcl_Obj *copyPtr) /* Object with internal rep to set. */ { - int length; + unsigned int length; + ByteArray *srcArrayPtr, *copyArrayPtr; + Tcl_ObjIntRep ir; + + srcArrayPtr = GET_BYTEARRAY(Tcl_FetchIntRep(srcPtr, &tclByteArrayType)); + length = srcArrayPtr->used; + + copyArrayPtr = ckalloc(BYTEARRAY_SIZE(length)); + copyArrayPtr->used = length; + copyArrayPtr->allocated = length; + memcpy(copyArrayPtr->bytes, srcArrayPtr->bytes, (size_t) length); + + SET_BYTEARRAY(&ir, copyArrayPtr); + Tcl_StoreIntRep(copyPtr, &tclByteArrayType, &ir); +} + +static void +DupProperByteArrayInternalRep( + Tcl_Obj *srcPtr, /* Object with internal rep to copy. */ + Tcl_Obj *copyPtr) /* Object with internal rep to set. */ +{ + unsigned int length; ByteArray *srcArrayPtr, *copyArrayPtr; + Tcl_ObjIntRep ir; - srcArrayPtr = GET_BYTEARRAY(srcPtr); + srcArrayPtr = GET_BYTEARRAY(Tcl_FetchIntRep(srcPtr, &properByteArrayType)); length = srcArrayPtr->used; copyArrayPtr = ckalloc(BYTEARRAY_SIZE(length)); copyArrayPtr->used = length; copyArrayPtr->allocated = length; memcpy(copyArrayPtr->bytes, srcArrayPtr->bytes, (size_t) length); - SET_BYTEARRAY(copyPtr, copyArrayPtr); - copyPtr->typePtr = srcPtr->typePtr; + SET_BYTEARRAY(&ir, copyArrayPtr); + Tcl_StoreIntRep(copyPtr, &properByteArrayType, &ir); } /* @@ -632,9 +685,7 @@ DupByteArrayInternalRep( * * UpdateStringOfByteArray -- * - * Update the string representation for a ByteArray data object. Note: - * This procedure does not invalidate an existing old string rep so - * storage will be lost if this has not already been done. + * Update the string representation for a ByteArray data object. * * Results: * None. @@ -643,9 +694,6 @@ DupByteArrayInternalRep( * The object's string is set to a valid string that results from the * ByteArray-to-string conversion. * - * The object becomes a string object -- the internal rep is discarded - * and the typePtr becomes NULL. - * *---------------------------------------------------------------------- */ @@ -654,41 +702,35 @@ UpdateStringOfByteArray( Tcl_Obj *objPtr) /* ByteArray object whose string rep to * update. */ { - int i, length, size; - unsigned char *src; - char *dst; - ByteArray *byteArrayPtr; - - byteArrayPtr = GET_BYTEARRAY(objPtr); - src = byteArrayPtr->bytes; - length = byteArrayPtr->used; + const Tcl_ObjIntRep *irPtr = Tcl_FetchIntRep(objPtr, &properByteArrayType); + ByteArray *byteArrayPtr = GET_BYTEARRAY(irPtr); + unsigned char *src = byteArrayPtr->bytes; + unsigned int i, length = byteArrayPtr->used; + unsigned int size = length; /* * How much space will string rep need? */ - size = length; - for (i = 0; i < length && size >= 0; i++) { + for (i = 0; i < length && size <= INT_MAX; i++) { if ((src[i] == 0) || (src[i] > 127)) { size++; } } - if (size < 0) { + if (size > INT_MAX) { Tcl_Panic("max size for a Tcl value (%d bytes) exceeded", INT_MAX); } - dst = ckalloc(size + 1); - objPtr->bytes = dst; - objPtr->length = size; - if (size == length) { - memcpy(dst, src, (size_t) size); - dst[size] = '\0'; + char *dst = Tcl_InitStringRep(objPtr, (char *)src, size); + TclOOM(dst, size); } else { + char *dst = Tcl_InitStringRep(objPtr, NULL, size); + TclOOM(dst, size); for (i = 0; i < length; i++) { dst += Tcl_UniCharToUtf(src[i], dst); } - *dst = '\0'; + (void)Tcl_InitStringRep(objPtr, NULL, size); } } @@ -718,7 +760,8 @@ TclAppendBytesToByteArray( int len) { ByteArray *byteArrayPtr; - int needed; + unsigned int length, needed; + Tcl_ObjIntRep *irPtr; if (Tcl_IsShared(objPtr)) { Tcl_Panic("%s called with shared object","TclAppendBytesToByteArray"); @@ -731,24 +774,34 @@ TclAppendBytesToByteArray( /* Append zero bytes is a no-op. */ return; } - if ((objPtr->typePtr != &properByteArrayType) - && (objPtr->typePtr != &tclByteArrayType)) { - SetByteArrayFromAny(NULL, objPtr); + + length = (unsigned int)len; + + irPtr = Tcl_FetchIntRep(objPtr, &properByteArrayType); + if (irPtr == NULL) { + irPtr = Tcl_FetchIntRep(objPtr, &tclByteArrayType); + if (irPtr == NULL) { + SetByteArrayFromAny(NULL, objPtr); + irPtr = Tcl_FetchIntRep(objPtr, &properByteArrayType); + if (irPtr == NULL) { + irPtr = Tcl_FetchIntRep(objPtr, &tclByteArrayType); + } + } } - byteArrayPtr = GET_BYTEARRAY(objPtr); + byteArrayPtr = GET_BYTEARRAY(irPtr); - if (len > INT_MAX - byteArrayPtr->used) { + if (length > INT_MAX - byteArrayPtr->used) { Tcl_Panic("max size for a Tcl value (%d bytes) exceeded", INT_MAX); } - needed = byteArrayPtr->used + len; + needed = byteArrayPtr->used + length; /* * If we need to, resize the allocated space in the byte array. */ if (needed > byteArrayPtr->allocated) { ByteArray *ptr = NULL; - int attempt; + unsigned int attempt; if (needed <= INT_MAX/2) { /* Try to allocate double the total space that is needed. */ @@ -758,7 +811,7 @@ TclAppendBytesToByteArray( if (ptr == NULL) { /* Try to allocate double the increment that is needed (plus). */ unsigned int limit = INT_MAX - needed; - unsigned int extra = len + TCL_MIN_GROWTH; + unsigned int extra = length + TCL_MIN_GROWTH; int growth = (int) ((extra > limit) ? limit : extra); attempt = needed + growth; @@ -771,13 +824,13 @@ TclAppendBytesToByteArray( } byteArrayPtr = ptr; byteArrayPtr->allocated = attempt; - SET_BYTEARRAY(objPtr, byteArrayPtr); + SET_BYTEARRAY(irPtr, byteArrayPtr); } if (bytes) { - memcpy(byteArrayPtr->bytes + byteArrayPtr->used, bytes, len); + memcpy(byteArrayPtr->bytes + byteArrayPtr->used, bytes, length); } - byteArrayPtr->used += len; + byteArrayPtr->used += length; TclInvalidateStringRep(objPtr); } @@ -1979,10 +2032,11 @@ FormatNumber( */ if (Tcl_GetDoubleFromObj(interp, src, &dvalue) != TCL_OK) { - if (src->typePtr != &tclDoubleType) { + const Tcl_ObjIntRep *irPtr = Tcl_FetchIntRep(src, &tclDoubleType); + if (irPtr == NULL) { return TCL_ERROR; } - dvalue = src->internalRep.doubleValue; + dvalue = irPtr->doubleValue; } CopyNumber(&dvalue, *cursorPtr, sizeof(double), type); *cursorPtr += sizeof(double); @@ -1998,10 +2052,11 @@ FormatNumber( */ if (Tcl_GetDoubleFromObj(interp, src, &dvalue) != TCL_OK) { - if (src->typePtr != &tclDoubleType) { + const Tcl_ObjIntRep *irPtr = Tcl_FetchIntRep(src, &tclDoubleType); + if (irPtr == NULL) { return TCL_ERROR; } - dvalue = src->internalRep.doubleValue; + dvalue = irPtr->doubleValue; } /* diff --git a/generic/tclClock.c b/generic/tclClock.c index bbfc83b..7f4f592 100644 --- a/generic/tclClock.c +++ b/generic/tclClock.c @@ -452,7 +452,7 @@ ClockGetdatefieldsObjCmd( * that it isn't. */ - if (objv[1]->typePtr == &tclBignumType) { + if (Tcl_FetchIntRep(objv[1], &tclBignumType)) { Tcl_SetObjResult(interp, literals[LIT_INTEGER_VALUE_TOO_LARGE]); return TCL_ERROR; } diff --git a/generic/tclCmdIL.c b/generic/tclCmdIL.c index 47076ec..6a98fe6 100644 --- a/generic/tclCmdIL.c +++ b/generic/tclCmdIL.c @@ -543,9 +543,9 @@ InfoBodyCmd( Tcl_Obj *const objv[]) /* Argument objects. */ { register Interp *iPtr = (Interp *) interp; - const char *name; + const char *name, *bytes; Proc *procPtr; - Tcl_Obj *bodyPtr, *resultPtr; + int numBytes; if (objc != 2) { Tcl_WrongNumArgs(interp, 1, objv, "procname"); @@ -570,18 +570,8 @@ InfoBodyCmd( * the object do not invalidate the internal rep. */ - bodyPtr = procPtr->bodyPtr; - if (bodyPtr->bytes == NULL) { - /* - * The string rep might not be valid if the procedure has never been - * run before. [Bug #545644] - */ - - TclGetString(bodyPtr); - } - resultPtr = Tcl_NewStringObj(bodyPtr->bytes, bodyPtr->length); - - Tcl_SetObjResult(interp, resultPtr); + bytes = Tcl_GetStringFromObj(procPtr->bodyPtr, &numBytes); + Tcl_SetObjResult(interp, Tcl_NewStringObj(bytes, numBytes)); return TCL_OK; } diff --git a/generic/tclCmdMZ.c b/generic/tclCmdMZ.c index 2195aa1..72818c5 100644 --- a/generic/tclCmdMZ.c +++ b/generic/tclCmdMZ.c @@ -1594,12 +1594,12 @@ StringIsCmd( break; case STR_IS_DOUBLE: { /* TODO */ - if ((objPtr->typePtr == &tclDoubleType) || - (objPtr->typePtr == &tclIntType) || + if (Tcl_FetchIntRep(objPtr, &tclDoubleType) || + Tcl_FetchIntRep(objPtr, &tclIntType) || #ifndef TCL_WIDE_INT_IS_LONG - (objPtr->typePtr == &tclWideIntType) || + Tcl_FetchIntRep(objPtr, &tclWideIntType) || #endif - (objPtr->typePtr == &tclBignumType)) { + Tcl_FetchIntRep(objPtr, &tclBignumType)) { break; } string1 = TclGetStringFromObj(objPtr, &length1); @@ -1632,11 +1632,11 @@ StringIsCmd( } goto failedIntParse; case STR_IS_ENTIER: - if ((objPtr->typePtr == &tclIntType) || + if (Tcl_FetchIntRep(objPtr, &tclIntType) || #ifndef TCL_WIDE_INT_IS_LONG - (objPtr->typePtr == &tclWideIntType) || + Tcl_FetchIntRep(objPtr, &tclWideIntType) || #endif - (objPtr->typePtr == &tclBignumType)) { + Tcl_FetchIntRep(objPtr, &tclBignumType)) { break; } string1 = TclGetStringFromObj(objPtr, &length1); @@ -1907,7 +1907,8 @@ StringMapCmd( * inconsistencies (see test string-10.20.1 for illustration why!) */ - if (objv[objc-2]->typePtr == &tclDictType && objv[objc-2]->bytes == NULL){ + if (!TclHasStringRep(objv[objc-2]) + && Tcl_FetchIntRep(objv[objc-2], &tclDictType)){ int i, done; Tcl_DictSearch search; @@ -2602,8 +2603,8 @@ StringEqualCmd( string1 = (char *) Tcl_GetByteArrayFromObj(objv[0], &length1); string2 = (char *) Tcl_GetByteArrayFromObj(objv[1], &length2); strCmpFn = (strCmpFn_t) memcmp; - } else if ((objv[0]->typePtr == &tclStringType) - && (objv[1]->typePtr == &tclStringType)) { + } else if (Tcl_FetchIntRep(objv[0], &tclStringType) + && Tcl_FetchIntRep(objv[1], &tclStringType)) { /* * Do a unicode-specific comparison if both of the args are of String * type. In benchmark testing this proved the most efficient check @@ -2752,8 +2753,8 @@ StringCmpCmd( string1 = (char *) Tcl_GetByteArrayFromObj(objv[0], &length1); string2 = (char *) Tcl_GetByteArrayFromObj(objv[1], &length2); strCmpFn = (strCmpFn_t) memcmp; - } else if ((objv[0]->typePtr == &tclStringType) - && (objv[1]->typePtr == &tclStringType)) { + } else if (Tcl_FetchIntRep(objv[0], &tclStringType) + && Tcl_FetchIntRep(objv[1], &tclStringType)) { /* * Do a unicode-specific comparison if both of the args are of String * type. In benchmark testing this proved the most efficient check diff --git a/generic/tclCompExpr.c b/generic/tclCompExpr.c index b854b0f..159e2ea 100644 --- a/generic/tclCompExpr.c +++ b/generic/tclCompExpr.c @@ -2476,11 +2476,13 @@ CompileExprTree( * already, then use it to share via the literal table. */ - if (objPtr->bytes) { + if (TclHasStringRep(objPtr)) { Tcl_Obj *tableValue; + int numBytes; + const char *bytes + = Tcl_GetStringFromObj(objPtr, &numBytes); - index = TclRegisterLiteral(envPtr, objPtr->bytes, - objPtr->length, 0); + index = TclRegisterLiteral(envPtr, bytes, numBytes, 0); tableValue = TclFetchLiteral(envPtr, index); if ((tableValue->typePtr == NULL) && (objPtr->typePtr != NULL)) { diff --git a/generic/tclCompile.c b/generic/tclCompile.c index b5de230..f6e6b81 100644 --- a/generic/tclCompile.c +++ b/generic/tclCompile.c @@ -725,13 +725,14 @@ 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)) /* *---------------------------------------------------------------------- @@ -974,7 +975,10 @@ static void FreeByteCodeInternalRep( register Tcl_Obj *objPtr) /* Object whose internal rep to free. */ { - register ByteCode *codePtr = objPtr->internalRep.twoPtrValue.ptr1; + ByteCode *codePtr; + + ByteCodeGetIntRep(objPtr, &tclByteCodeType, codePtr); + assert(codePtr != NULL); TclReleaseByteCode(codePtr); } @@ -1304,21 +1308,23 @@ 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)) { - TclFreeIntRep(objPtr); + Tcl_StoreIntRep(objPtr, &substCodeType, NULL); + codePtr = NULL; } } - if (objPtr->typePtr != &substCodeType) { + if (codePtr == NULL) { CompileEnv compEnv; int numBytes; const char *bytes = TclGetStringFromObj(objPtr, &numBytes); @@ -1332,8 +1338,7 @@ CompileSubstObj( codePtr = TclInitByteCodeObj(objPtr, &substCodeType, &compEnv); TclFreeCompileEnv(&compEnv); - 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++; @@ -1372,7 +1377,10 @@ static void FreeSubstCodeInternalRep( register Tcl_Obj *objPtr) /* Object whose internal rep to free. */ { - register ByteCode *codePtr = objPtr->internalRep.twoPtrValue.ptr1; + register ByteCode *codePtr; + + ByteCodeGetIntRep(objPtr, &substCodeType, codePtr); + assert(codePtr != NULL); TclReleaseByteCode(codePtr); } @@ -2912,9 +2920,7 @@ TclInitByteCodeObj( * by making its internal rep point to the just compiled ByteCode. */ - TclFreeIntRep(objPtr); - objPtr->internalRep.twoPtrValue.ptr1 = codePtr; - objPtr->typePtr = typePtr; + ByteCodeSetIntRep(objPtr, typePtr, codePtr); return codePtr; } diff --git a/generic/tclCompile.h b/generic/tclCompile.h index bd7aaab..1cd937c 100644 --- a/generic/tclCompile.h +++ b/generic/tclCompile.h @@ -514,6 +514,23 @@ typedef struct ByteCode { * created. */ #endif /* TCL_COMPILE_STATS */ } ByteCode; + +#define ByteCodeSetIntRep(objPtr, typePtr, codePtr) \ + do { \ + Tcl_ObjIntRep ir; \ + ir.twoPtrValue.ptr1 = (codePtr); \ + ir.twoPtrValue.ptr2 = NULL; \ + Tcl_StoreIntRep((objPtr), (typePtr), &ir); \ + } while (0) + + + +#define ByteCodeGetIntRep(objPtr, typePtr, codePtr) \ + do { \ + const Tcl_ObjIntRep *irPtr; \ + irPtr = Tcl_FetchIntRep((objPtr), (typePtr)); \ + (codePtr) = irPtr ? irPtr->twoPtrValue.ptr1 : NULL; \ + } while (0) /* * Opcodes for the Tcl bytecode instructions. These must correspond to the diff --git a/generic/tclDecls.h b/generic/tclDecls.h index 464fc0f..0aecc9f 100644 --- a/generic/tclDecls.h +++ b/generic/tclDecls.h @@ -1831,6 +1831,20 @@ EXTERN Tcl_Channel Tcl_OpenTcpServerEx(Tcl_Interp *interp, unsigned int flags, Tcl_TcpAcceptProc *acceptProc, ClientData callbackData); +/* 632 */ +EXTERN void Tcl_FreeIntRep(Tcl_Obj *objPtr); +/* 633 */ +EXTERN char * Tcl_InitStringRep(Tcl_Obj *objPtr, const char *bytes, + unsigned int numBytes); +/* 634 */ +EXTERN Tcl_ObjIntRep * Tcl_FetchIntRep(Tcl_Obj *objPtr, + const Tcl_ObjType *typePtr); +/* 635 */ +EXTERN void Tcl_StoreIntRep(Tcl_Obj *objPtr, + const Tcl_ObjType *typePtr, + const Tcl_ObjIntRep *irPtr); +/* 636 */ +EXTERN int Tcl_HasStringRep(Tcl_Obj *objPtr); typedef struct { const struct TclPlatStubs *tclPlatStubs; @@ -2498,6 +2512,11 @@ typedef struct TclStubs { int (*tcl_FSUnloadFile) (Tcl_Interp *interp, Tcl_LoadHandle handlePtr); /* 629 */ void (*tcl_ZlibStreamSetCompressionDictionary) (Tcl_ZlibStream zhandle, Tcl_Obj *compressionDictionaryObj); /* 630 */ Tcl_Channel (*tcl_OpenTcpServerEx) (Tcl_Interp *interp, const char *service, const char *host, unsigned int flags, Tcl_TcpAcceptProc *acceptProc, ClientData callbackData); /* 631 */ + void (*tcl_FreeIntRep) (Tcl_Obj *objPtr); /* 632 */ + char * (*tcl_InitStringRep) (Tcl_Obj *objPtr, const char *bytes, unsigned int numBytes); /* 633 */ + Tcl_ObjIntRep * (*tcl_FetchIntRep) (Tcl_Obj *objPtr, const Tcl_ObjType *typePtr); /* 634 */ + void (*tcl_StoreIntRep) (Tcl_Obj *objPtr, const Tcl_ObjType *typePtr, const Tcl_ObjIntRep *irPtr); /* 635 */ + int (*tcl_HasStringRep) (Tcl_Obj *objPtr); /* 636 */ } TclStubs; extern const TclStubs *tclStubsPtr; @@ -3792,6 +3811,16 @@ extern const TclStubs *tclStubsPtr; (tclStubsPtr->tcl_ZlibStreamSetCompressionDictionary) /* 630 */ #define Tcl_OpenTcpServerEx \ (tclStubsPtr->tcl_OpenTcpServerEx) /* 631 */ +#define Tcl_FreeIntRep \ + (tclStubsPtr->tcl_FreeIntRep) /* 632 */ +#define Tcl_InitStringRep \ + (tclStubsPtr->tcl_InitStringRep) /* 633 */ +#define Tcl_FetchIntRep \ + (tclStubsPtr->tcl_FetchIntRep) /* 634 */ +#define Tcl_StoreIntRep \ + (tclStubsPtr->tcl_StoreIntRep) /* 635 */ +#define Tcl_HasStringRep \ + (tclStubsPtr->tcl_HasStringRep) /* 636 */ #endif /* defined(USE_TCL_STUBS) */ diff --git a/generic/tclDictObj.c b/generic/tclDictObj.c index c82f88a..d0ef59d 100644 --- a/generic/tclDictObj.c +++ b/generic/tclDictObj.c @@ -12,6 +12,7 @@ #include "tclInt.h" #include "tommath.h" +#include <assert.h> /* * Forward declaration. @@ -149,13 +150,6 @@ typedef struct Dict { } Dict; /* - * Accessor macro for converting between a Tcl_Obj* and a Dict. Note that this - * must be assignable as well as readable. - */ - -#define DICT(dictObj) (*((Dict **)&(dictObj)->internalRep.twoPtrValue.ptr1)) - -/* * The structure below defines the dictionary object type by means of * functions that can be invoked by generic object code. */ @@ -168,6 +162,21 @@ const Tcl_ObjType tclDictType = { SetDictFromAny /* setFromAnyProc */ }; +#define DictSetIntRep(objPtr, dictRepPtr) \ + do { \ + Tcl_ObjIntRep ir; \ + ir.twoPtrValue.ptr1 = (dictRepPtr); \ + ir.twoPtrValue.ptr2 = NULL; \ + Tcl_StoreIntRep((objPtr), &tclDictType, &ir); \ + } while (0) + +#define DictGetIntRep(objPtr, dictRepPtr) \ + do { \ + const Tcl_ObjIntRep *irPtr; \ + irPtr = Tcl_FetchIntRep((objPtr), &tclDictType); \ + (dictRepPtr) = irPtr ? irPtr->twoPtrValue.ptr1 : NULL; \ + } while (0) + /* * The type of the specially adapted version of the Tcl_Obj*-containing hash * table defined in the tclObj.c code. This version differs in that it @@ -363,10 +372,11 @@ DupDictInternalRep( Tcl_Obj *srcPtr, Tcl_Obj *copyPtr) { - Dict *oldDict = DICT(srcPtr); - Dict *newDict = ckalloc(sizeof(Dict)); + Dict *oldDict, *newDict = ckalloc(sizeof(Dict)); ChainEntry *cPtr; + DictGetIntRep(srcPtr, oldDict); + /* * Copy values across from the old hash table. */ @@ -398,9 +408,7 @@ DupDictInternalRep( * Store in the object. */ - DICT(copyPtr) = newDict; - copyPtr->internalRep.twoPtrValue.ptr2 = NULL; - copyPtr->typePtr = &tclDictType; + DictSetIntRep(copyPtr, newDict); } /* @@ -425,12 +433,13 @@ static void FreeDictInternalRep( Tcl_Obj *dictPtr) { - Dict *dict = DICT(dictPtr); + Dict *dict; + + DictGetIntRep(dictPtr, dict); if (dict->refCount-- <= 1) { DeleteDict(dict); } - dictPtr->typePtr = NULL; } /* @@ -489,7 +498,7 @@ UpdateStringOfDict( { #define LOCAL_SIZE 20 int localFlags[LOCAL_SIZE], *flagPtr = NULL; - Dict *dict = DICT(dictPtr); + Dict *dict; ChainEntry *cPtr; Tcl_Obj *keyPtr, *valuePtr; int i, length, bytesNeeded = 0; @@ -502,12 +511,17 @@ UpdateStringOfDict( * is not exposed by any API function... */ - int numElems = dict->table.numEntries * 2; + int numElems; + + DictGetIntRep(dictPtr, dict); + + assert (dict != NULL); + + numElems = dict->table.numEntries * 2; /* Handle empty list case first, simplifies what follows */ if (numElems == 0) { - dictPtr->bytes = &tclEmptyString; - dictPtr->length = 0; + Tcl_InitStringRep(dictPtr, NULL, 0); return; } @@ -553,9 +567,8 @@ UpdateStringOfDict( * Pass 2: copy into string rep buffer. */ - dictPtr->length = bytesNeeded - 1; - dictPtr->bytes = ckalloc(bytesNeeded); - dst = dictPtr->bytes; + dst = Tcl_InitStringRep(dictPtr, NULL, bytesNeeded - 1); + TclOOM(dst, bytesNeeded); for (i=0,cPtr=dict->entryChainHead; i<numElems; i+=2,cPtr=cPtr->nextPtr) { flagPtr[i] |= ( i ? TCL_DONT_QUOTE_HASH : 0 ); keyPtr = Tcl_GetHashKey(&dict->table, &cPtr->entry); @@ -569,7 +582,7 @@ UpdateStringOfDict( dst += TclConvertElement(elem, length, dst, flagPtr[i+1]); *dst++ = ' '; } - dictPtr->bytes[dictPtr->length] = '\0'; + (void)Tcl_InitStringRep(dictPtr, NULL, bytesNeeded - 1); if (flagPtr != localFlags) { ckfree(flagPtr); @@ -613,7 +626,7 @@ SetDictFromAny( * the conversion from lists to dictionaries. */ - if (objPtr->typePtr == &tclListType) { + if (Tcl_FetchIntRep(objPtr, &tclListType)) { int objc, i; Tcl_Obj **objv; @@ -668,10 +681,14 @@ SetDictFromAny( TclNewStringObj(keyPtr, elemStart, elemSize); } else { /* Avoid double copy */ + char *dst; + TclNewObj(keyPtr); - keyPtr->bytes = ckalloc((unsigned) elemSize + 1); - keyPtr->length = TclCopyAndCollapse(elemSize, elemStart, - keyPtr->bytes); + Tcl_InvalidateStringRep(keyPtr); + dst = Tcl_InitStringRep(keyPtr, NULL, elemSize); + TclOOM(dst, elemSize); /* Consider error */ + (void)Tcl_InitStringRep(keyPtr, NULL, + TclCopyAndCollapse(elemSize, elemStart, dst)); } if (TclFindDictElement(interp, nextElem, (limit - nextElem), @@ -684,10 +701,14 @@ SetDictFromAny( TclNewStringObj(valuePtr, elemStart, elemSize); } else { /* Avoid double copy */ + char *dst; + TclNewObj(valuePtr); - valuePtr->bytes = ckalloc((unsigned) elemSize + 1); - valuePtr->length = TclCopyAndCollapse(elemSize, elemStart, - valuePtr->bytes); + Tcl_InvalidateStringRep(valuePtr); + dst = Tcl_InitStringRep(valuePtr, NULL, elemSize); + TclOOM(dst, elemSize); /* Consider error */ + (void)Tcl_InitStringRep(valuePtr, NULL, + TclCopyAndCollapse(elemSize, elemStart, dst)); } /* Store key and value in the hash table we're building. */ @@ -709,13 +730,10 @@ SetDictFromAny( * Tcl_GetStringFromObj, to use that old internalRep. */ - TclFreeIntRep(objPtr); dict->epoch = 0; dict->chain = NULL; dict->refCount = 1; - DICT(objPtr) = dict; - objPtr->internalRep.twoPtrValue.ptr2 = NULL; - objPtr->typePtr = &tclDictType; + DictSetIntRep(objPtr, dict); return TCL_OK; missingValue: @@ -729,6 +747,23 @@ SetDictFromAny( ckfree(dict); return TCL_ERROR; } + +static Dict * +GetDictFromObj( + Tcl_Interp *interp, + Tcl_Obj *dictPtr) +{ + Dict *dict; + + DictGetIntRep(dictPtr, dict); + if (dict == NULL) { + if (SetDictFromAny(interp, dictPtr) != TCL_OK) { + return NULL; + } + DictGetIntRep(dictPtr, dict); + } + return dict; +} /* *---------------------------------------------------------------------- @@ -773,11 +808,13 @@ TclTraceDictPath( Dict *dict, *newDict; int i; - if (dictPtr->typePtr != &tclDictType - && SetDictFromAny(interp, dictPtr) != TCL_OK) { - return NULL; + DictGetIntRep(dictPtr, dict); + if (dict == NULL) { + if (SetDictFromAny(interp, dictPtr) != TCL_OK) { + return NULL; + } + DictGetIntRep(dictPtr, dict); } - dict = DICT(dictPtr); if (flags & DICT_PATH_UPDATE) { dict->chain = NULL; } @@ -813,13 +850,17 @@ TclTraceDictPath( Tcl_SetHashValue(hPtr, tmpObj); } else { tmpObj = Tcl_GetHashValue(hPtr); - if (tmpObj->typePtr != &tclDictType - && SetDictFromAny(interp, tmpObj) != TCL_OK) { - return NULL; + + DictGetIntRep(tmpObj, newDict); + + if (newDict == NULL) { + if (SetDictFromAny(interp, tmpObj) != TCL_OK) { + return NULL; + } } } - newDict = DICT(tmpObj); + DictGetIntRep(tmpObj, newDict); if (flags & DICT_PATH_UPDATE) { if (Tcl_IsShared(tmpObj)) { TclDecrRefCount(tmpObj); @@ -827,7 +868,7 @@ TclTraceDictPath( Tcl_IncrRefCount(tmpObj); Tcl_SetHashValue(hPtr, tmpObj); dict->epoch++; - newDict = DICT(tmpObj); + DictGetIntRep(tmpObj, newDict); } newDict->chain = dictPtr; @@ -862,17 +903,24 @@ static void InvalidateDictChain( Tcl_Obj *dictObj) { - Dict *dict = DICT(dictObj); + Dict *dict; + + DictGetIntRep(dictObj, dict); + assert( dict != NULL); do { + dict->refCount++; TclInvalidateStringRep(dictObj); + TclFreeIntRep(dictObj); + DictSetIntRep(dictObj, dict); + dict->epoch++; dictObj = dict->chain; if (dictObj == NULL) { break; } dict->chain = NULL; - dict = DICT(dictObj); + DictGetIntRep(dictObj, dict); } while (dict != NULL); } @@ -910,16 +958,16 @@ Tcl_DictObjPut( Tcl_Panic("%s called with shared object", "Tcl_DictObjPut"); } - if (dictPtr->typePtr != &tclDictType - && SetDictFromAny(interp, dictPtr) != TCL_OK) { + dict = GetDictFromObj(interp, dictPtr); + if (dict == NULL) { return TCL_ERROR; } - if (dictPtr->bytes != NULL) { - TclInvalidateStringRep(dictPtr); - } - dict = DICT(dictPtr); + TclInvalidateStringRep(dictPtr); hPtr = CreateChainEntry(dict, keyPtr, &isNew); + dict->refCount++; + TclFreeIntRep(dictPtr) + DictSetIntRep(dictPtr, dict); Tcl_IncrRefCount(valuePtr); if (!isNew) { Tcl_Obj *oldValuePtr = Tcl_GetHashValue(hPtr); @@ -961,13 +1009,12 @@ Tcl_DictObjGet( Dict *dict; Tcl_HashEntry *hPtr; - if (dictPtr->typePtr != &tclDictType - && SetDictFromAny(interp, dictPtr) != TCL_OK) { + dict = GetDictFromObj(interp, dictPtr); + if (dict == NULL) { *valuePtrPtr = NULL; return TCL_ERROR; } - dict = DICT(dictPtr); hPtr = Tcl_FindHashEntry(&dict->table, keyPtr); if (hPtr == NULL) { *valuePtrPtr = NULL; @@ -1008,16 +1055,13 @@ Tcl_DictObjRemove( Tcl_Panic("%s called with shared object", "Tcl_DictObjRemove"); } - if (dictPtr->typePtr != &tclDictType - && SetDictFromAny(interp, dictPtr) != TCL_OK) { + dict = GetDictFromObj(interp, dictPtr); + if (dict == NULL) { return TCL_ERROR; } - dict = DICT(dictPtr); if (DeleteChainEntry(dict, keyPtr)) { - if (dictPtr->bytes != NULL) { - TclInvalidateStringRep(dictPtr); - } + TclInvalidateStringRep(dictPtr); dict->epoch++; } return TCL_OK; @@ -1049,12 +1093,11 @@ Tcl_DictObjSize( { Dict *dict; - if (dictPtr->typePtr != &tclDictType - && SetDictFromAny(interp, dictPtr) != TCL_OK) { + dict = GetDictFromObj(interp, dictPtr); + if (dict == NULL) { return TCL_ERROR; } - dict = DICT(dictPtr); *sizePtr = dict->table.numEntries; return TCL_OK; } @@ -1101,12 +1144,11 @@ Tcl_DictObjFirst( Dict *dict; ChainEntry *cPtr; - if (dictPtr->typePtr != &tclDictType - && SetDictFromAny(interp, dictPtr) != TCL_OK) { + dict = GetDictFromObj(interp, dictPtr); + if (dict == NULL) { return TCL_ERROR; } - dict = DICT(dictPtr); cPtr = dict->entryChainHead; if (cPtr == NULL) { searchPtr->epoch = -1; @@ -1280,7 +1322,8 @@ Tcl_DictObjPutKeyList( return TCL_ERROR; } - dict = DICT(dictPtr); + DictGetIntRep(dictPtr, dict); + assert(dict != NULL); hPtr = CreateChainEntry(dict, keyv[keyc-1], &isNew); Tcl_IncrRefCount(valuePtr); if (!isNew) { @@ -1337,7 +1380,8 @@ Tcl_DictObjRemoveKeyList( return TCL_ERROR; } - dict = DICT(dictPtr); + DictGetIntRep(dictPtr, dict); + assert(dict != NULL); DeleteChainEntry(dict, keyv[keyc-1]); InvalidateDictChain(dictPtr); return TCL_OK; @@ -1383,9 +1427,7 @@ Tcl_NewDictObj(void) dict->epoch = 0; dict->chain = NULL; dict->refCount = 1; - DICT(dictPtr) = dict; - dictPtr->internalRep.twoPtrValue.ptr2 = NULL; - dictPtr->typePtr = &tclDictType; + DictSetIntRep(dictPtr, dict); return dictPtr; #endif } @@ -1433,9 +1475,7 @@ Tcl_DbNewDictObj( dict->epoch = 0; dict->chain = NULL; dict->refCount = 1; - DICT(dictPtr) = dict; - dictPtr->internalRep.twoPtrValue.ptr2 = NULL; - dictPtr->typePtr = &tclDictType; + DictSetIntRep(dictPtr, dict); return dictPtr; #else /* !TCL_MEM_DEBUG */ return Tcl_NewDictObj(); @@ -1621,16 +1661,13 @@ DictReplaceCmd( } dictPtr = objv[1]; - if (dictPtr->typePtr != &tclDictType - && SetDictFromAny(interp, dictPtr) != TCL_OK) { + if (GetDictFromObj(interp, dictPtr) == NULL) { return TCL_ERROR; } if (Tcl_IsShared(dictPtr)) { dictPtr = Tcl_DuplicateObj(dictPtr); } - if (dictPtr->bytes != NULL) { - TclInvalidateStringRep(dictPtr); - } + TclInvalidateStringRep(dictPtr); for (i=2 ; i<objc ; i+=2) { Tcl_DictObjPut(NULL, dictPtr, objv[i], objv[i+1]); } @@ -1672,16 +1709,13 @@ DictRemoveCmd( } dictPtr = objv[1]; - if (dictPtr->typePtr != &tclDictType - && SetDictFromAny(interp, dictPtr) != TCL_OK) { + if (GetDictFromObj(interp, dictPtr) == NULL) { return TCL_ERROR; } if (Tcl_IsShared(dictPtr)) { dictPtr = Tcl_DuplicateObj(dictPtr); } - if (dictPtr->bytes != NULL) { - TclInvalidateStringRep(dictPtr); - } + TclInvalidateStringRep(dictPtr); for (i=2 ; i<objc ; i++) { Tcl_DictObjRemove(NULL, dictPtr, objv[i]); } @@ -1732,8 +1766,7 @@ DictMergeCmd( */ targetObj = objv[1]; - if (targetObj->typePtr != &tclDictType - && SetDictFromAny(interp, targetObj) != TCL_OK) { + if (GetDictFromObj(interp, targetObj) == NULL) { return TCL_ERROR; } @@ -1816,8 +1849,7 @@ DictKeysCmd( * need. [Bug 1705778, leak K04] */ - if (objv[1]->typePtr != &tclDictType - && SetDictFromAny(interp, objv[1]) != TCL_OK) { + if (GetDictFromObj(interp, objv[1]) == NULL) { return TCL_ERROR; } @@ -2024,7 +2056,6 @@ DictInfoCmd( int objc, Tcl_Obj *const *objv) { - Tcl_Obj *dictPtr; Dict *dict; char *statsStr; @@ -2033,12 +2064,10 @@ DictInfoCmd( return TCL_ERROR; } - dictPtr = objv[1]; - if (dictPtr->typePtr != &tclDictType - && SetDictFromAny(interp, dictPtr) != TCL_OK) { + dict = GetDictFromObj(interp, objv[1]); + if (dict == NULL) { return TCL_ERROR; } - dict = DICT(dictPtr); statsStr = Tcl_HashStats(&dict->table); Tcl_SetObjResult(interp, Tcl_NewStringObj(statsStr, -1)); @@ -2099,12 +2128,11 @@ DictIncrCmd( * soon be no good. */ - char *saved = dictPtr->bytes; Tcl_Obj *oldPtr = dictPtr; - dictPtr->bytes = NULL; - dictPtr = Tcl_DuplicateObj(dictPtr); - oldPtr->bytes = saved; + TclNewObj(dictPtr); + TclInvalidateStringRep(dictPtr); + DupDictInternalRep(oldPtr, dictPtr); } if (valuePtr == NULL) { /* @@ -2241,7 +2269,7 @@ DictLappendCmd( if (allocatedValue) { Tcl_DictObjPut(NULL, dictPtr, objv[2], valuePtr); - } else if (dictPtr->bytes != NULL) { + } else { TclInvalidateStringRep(dictPtr); } diff --git a/generic/tclDisassemble.c b/generic/tclDisassemble.c index d61ed42..9e7edc9 100644 --- a/generic/tclDisassemble.c +++ b/generic/tclDisassemble.c @@ -38,7 +38,7 @@ static void UpdateStringOfInstName(Tcl_Obj *objPtr); * reporting of inner contexts in errorstack without string allocation. */ -static const Tcl_ObjType tclInstNameType = { +static const Tcl_ObjType instNameType = { "instname", /* name */ NULL, /* freeIntRepProc */ NULL, /* dupIntRepProc */ @@ -46,12 +46,21 @@ static const Tcl_ObjType tclInstNameType = { NULL, /* setFromAnyProc */ }; -/* - * How to get the bytecode out of a Tcl_Obj. - */ +#define InstNameSetIntRep(objPtr, inst) \ + do { \ + Tcl_ObjIntRep ir; \ + ir.longValue = (inst); \ + Tcl_StoreIntRep((objPtr), &instNameType, &ir); \ + } while (0) + +#define InstNameGetIntRep(objPtr, inst) \ + do { \ + const Tcl_ObjIntRep *irPtr; \ + irPtr = Tcl_FetchIntRep((objPtr), &instNameType); \ + assert(irPtr != NULL); \ + (inst) = irPtr->longValue; \ + } while (0) -#define BYTECODE(objPtr) \ - ((ByteCode *) (objPtr)->internalRep.twoPtrValue.ptr1) /* *---------------------------------------------------------------------- @@ -245,14 +254,18 @@ DisassembleByteCodeObj( Tcl_Interp *interp, Tcl_Obj *objPtr) /* The bytecode object to disassemble. */ { - ByteCode *codePtr = BYTECODE(objPtr); + ByteCode *codePtr; unsigned char *codeStart, *codeLimit, *pc; unsigned char *codeDeltaNext, *codeLengthNext; unsigned char *srcDeltaNext, *srcLengthNext; int codeOffset, codeLen, srcOffset, srcLen, numCmds, delta, i, line; - Interp *iPtr = (Interp *) *codePtr->interpHandle; + Interp *iPtr; Tcl_Obj *bufferObj, *fileObj; + ByteCodeGetIntRep(objPtr, &tclByteCodeType, codePtr); + + iPtr = (Interp *) *codePtr->interpHandle; + TclNewObj(bufferObj); if (codePtr->refCount <= 0) { return bufferObj; /* Already freed. */ @@ -796,9 +809,8 @@ TclNewInstNameObj( { Tcl_Obj *objPtr = Tcl_NewObj(); - objPtr->typePtr = &tclInstNameType; - objPtr->internalRep.longValue = (long) inst; - objPtr->bytes = NULL; + TclInvalidateStringRep(objPtr); + InstNameSetIntRep(objPtr, (long) inst); return objPtr; } @@ -817,20 +829,22 @@ static void UpdateStringOfInstName( Tcl_Obj *objPtr) { - int inst = objPtr->internalRep.longValue; - char *s, buf[20]; - int len; + int inst; + char *dst; + + InstNameGetIntRep(objPtr, inst); if ((inst < 0) || (inst > LAST_INST_OPCODE)) { - sprintf(buf, "inst_%d", inst); - s = buf; + dst = Tcl_InitStringRep(objPtr, NULL, TCL_INTEGER_SPACE + 5); + TclOOM(dst, TCL_INTEGER_SPACE + 5); + sprintf(dst, "inst_%d", inst); + (void) Tcl_InitStringRep(objPtr, NULL, strlen(dst)); } else { - s = (char *) tclInstructionTable[objPtr->internalRep.longValue].name; + const char *s = tclInstructionTable[inst].name; + int len = strlen(s); + dst = Tcl_InitStringRep(objPtr, s, len); + TclOOM(dst, len); } - len = strlen(s); - objPtr->bytes = ckalloc(len + 1); - memcpy(objPtr->bytes, s, len + 1); - objPtr->length = len; } /* @@ -942,13 +956,15 @@ DisassembleByteCodeAsDicts( * procedure, if one exists. */ Tcl_Obj *objPtr) /* The bytecode-holding value to take apart */ { - ByteCode *codePtr = BYTECODE(objPtr); + ByteCode *codePtr; Tcl_Obj *description, *literals, *variables, *instructions, *inst; Tcl_Obj *aux, *exn, *commands, *file; unsigned char *pc, *opnd, *codeOffPtr, *codeLenPtr, *srcOffPtr, *srcLenPtr; int codeOffset, codeLength, sourceOffset, sourceLength; int i, val, line; + ByteCodeGetIntRep(objPtr, &tclByteCodeType, codePtr); + /* * Get the literals from the bytecode. */ @@ -1286,6 +1302,7 @@ Tcl_DisassembleObjCmd( Proc *procPtr = NULL; Tcl_HashEntry *hPtr; Object *oPtr; + ByteCode *codePtr; Method *methodPtr; if (objc < 2) { @@ -1304,27 +1321,19 @@ Tcl_DisassembleObjCmd( /* * Compile (if uncompiled) and disassemble a lambda term. - * - * WARNING! Pokes inside the lambda objtype. */ if (objc != 3) { Tcl_WrongNumArgs(interp, 2, objv, "lambdaTerm"); return TCL_ERROR; } - if (objv[2]->typePtr == &tclLambdaType) { - procPtr = objv[2]->internalRep.twoPtrValue.ptr1; - } - if (procPtr == NULL || procPtr->iPtr != (Interp *) interp) { - result = tclLambdaType.setFromAnyProc(interp, objv[2]); - if (result != TCL_OK) { - return result; - } - procPtr = objv[2]->internalRep.twoPtrValue.ptr1; + + procPtr = TclGetLambdaFromObj(interp, objv[2], &nsObjPtr); + if (procPtr == NULL) { + return TCL_ERROR; } memset(&cmd, 0, sizeof(Command)); - nsObjPtr = objv[2]->internalRep.twoPtrValue.ptr2; result = TclGetNamespaceFromObj(interp, nsObjPtr, &nsPtr); if (result != TCL_OK) { return result; @@ -1374,8 +1383,9 @@ Tcl_DisassembleObjCmd( Tcl_WrongNumArgs(interp, 2, objv, "script"); return TCL_ERROR; } - if ((objv[2]->typePtr != &tclByteCodeType) - && (TclSetByteCodeFromAny(interp, objv[2], NULL, NULL) != TCL_OK)) { + + if ((NULL == Tcl_FetchIntRep(objv[2], &tclByteCodeType)) && (TCL_OK + != TclSetByteCodeFromAny(interp, objv[2], NULL, NULL))) { return TCL_ERROR; } codeObjPtr = objv[2]; @@ -1575,7 +1585,7 @@ Tcl_DisassembleObjCmd( "METHODTYPE", NULL); return TCL_ERROR; } - if (procPtr->bodyPtr->typePtr != &tclByteCodeType) { + if (NULL == Tcl_FetchIntRep(procPtr->bodyPtr, &tclByteCodeType)) { Command cmd; /* @@ -1603,7 +1613,9 @@ Tcl_DisassembleObjCmd( * Do the actual disassembly. */ - if (BYTECODE(codeObjPtr)->flags & TCL_BYTECODE_PRECOMPILED) { + ByteCodeGetIntRep(codeObjPtr, &tclByteCodeType, codePtr); + + if (codePtr->flags & TCL_BYTECODE_PRECOMPILED) { Tcl_SetObjResult(interp, Tcl_NewStringObj( "may not disassemble prebuilt bytecode", -1)); Tcl_SetErrorCode(interp, "TCL", "OPERATION", "DISASSEMBLE", diff --git a/generic/tclEncoding.c b/generic/tclEncoding.c index e328340..3445548 100644 --- a/generic/tclEncoding.c +++ b/generic/tclEncoding.c @@ -279,6 +279,21 @@ static int Iso88591ToUtfProc(ClientData clientData, static const Tcl_ObjType encodingType = { "encoding", FreeEncodingIntRep, DupEncodingIntRep, NULL, NULL }; +#define EncodingSetIntRep(objPtr, encoding) \ + do { \ + Tcl_ObjIntRep ir; \ + ir.twoPtrValue.ptr1 = (encoding); \ + ir.twoPtrValue.ptr2 = NULL; \ + Tcl_StoreIntRep((objPtr), &encodingType, &ir); \ + } while (0) + +#define EncodingGetIntRep(objPtr, encoding) \ + do { \ + const Tcl_ObjIntRep *irPtr; \ + irPtr = Tcl_FetchIntRep ((objPtr), &encodingType); \ + (encoding) = irPtr ? irPtr->twoPtrValue.ptr1 : NULL; \ + } while (0) + /* *---------------------------------------------------------------------- @@ -305,17 +320,16 @@ Tcl_GetEncodingFromObj( Tcl_Obj *objPtr, Tcl_Encoding *encodingPtr) { + Tcl_Encoding encoding; const char *name = TclGetString(objPtr); - if (objPtr->typePtr != &encodingType) { - Tcl_Encoding encoding = Tcl_GetEncoding(interp, name); - + EncodingGetIntRep(objPtr, encoding); + if (encoding == NULL) { + encoding = Tcl_GetEncoding(interp, name); if (encoding == NULL) { return TCL_ERROR; } - TclFreeIntRep(objPtr); - objPtr->internalRep.twoPtrValue.ptr1 = encoding; - objPtr->typePtr = &encodingType; + EncodingSetIntRep(objPtr, encoding); } *encodingPtr = Tcl_GetEncoding(NULL, name); return TCL_OK; @@ -335,8 +349,10 @@ static void FreeEncodingIntRep( Tcl_Obj *objPtr) { - Tcl_FreeEncoding(objPtr->internalRep.twoPtrValue.ptr1); - objPtr->typePtr = NULL; + Tcl_Encoding encoding; + + EncodingGetIntRep(objPtr, encoding); + Tcl_FreeEncoding(encoding); } /* @@ -354,8 +370,8 @@ DupEncodingIntRep( Tcl_Obj *srcPtr, Tcl_Obj *dupPtr) { - dupPtr->internalRep.twoPtrValue.ptr1 = Tcl_GetEncoding(NULL, srcPtr->bytes); - dupPtr->typePtr = &encodingType; + Tcl_Encoding encoding = Tcl_GetEncoding(NULL, TclGetString(srcPtr)); + EncodingSetIntRep(dupPtr, encoding); } /* diff --git a/generic/tclEnsemble.c b/generic/tclEnsemble.c index f3e8187..8ff5986 100644 --- a/generic/tclEnsemble.c +++ b/generic/tclEnsemble.c @@ -86,6 +86,21 @@ static const Tcl_ObjType ensembleCmdType = { NULL /* setFromAnyProc */ }; +#define ECRSetIntRep(objPtr, ecRepPtr) \ + do { \ + Tcl_ObjIntRep ir; \ + ir.twoPtrValue.ptr1 = (ecRepPtr); \ + ir.twoPtrValue.ptr2 = NULL; \ + Tcl_StoreIntRep((objPtr), &ensembleCmdType, &ir); \ + } while (0) + +#define ECRGetIntRep(objPtr, ecRepPtr) \ + do { \ + const Tcl_ObjIntRep *irPtr; \ + irPtr = Tcl_FetchIntRep((objPtr), &ensembleCmdType); \ + (ecRepPtr) = irPtr ? irPtr->twoPtrValue.ptr1 : NULL; \ + } while (0) + /* * The internal rep for caching ensemble subcommand lookups and * spell corrections. @@ -1717,10 +1732,10 @@ NsEnsembleImplementationCmdNR( * check here, and if we're still valid, we can jump straight to the * part where we do the invocation of the subcommand. */ + EnsembleCmdRep *ensembleCmd; - if (subObj->typePtr==&ensembleCmdType){ - EnsembleCmdRep *ensembleCmd = subObj->internalRep.twoPtrValue.ptr1; - + ECRGetIntRep(subObj, ensembleCmd); + if (ensembleCmd) { if (ensembleCmd->epoch == ensemblePtr->epoch && ensembleCmd->token == (Command *)ensemblePtr->token) { prefixObj = Tcl_GetHashValue(ensembleCmd->hPtr); @@ -2346,8 +2361,8 @@ MakeCachedEnsembleCommand( { register EnsembleCmdRep *ensembleCmd; - if (objPtr->typePtr == &ensembleCmdType) { - ensembleCmd = objPtr->internalRep.twoPtrValue.ptr1; + ECRGetIntRep(objPtr, ensembleCmd); + if (ensembleCmd) { TclCleanupCommandMacro(ensembleCmd->token); if (ensembleCmd->fix) { Tcl_DecrRefCount(ensembleCmd->fix); @@ -2358,10 +2373,8 @@ MakeCachedEnsembleCommand( * our own. */ - TclFreeIntRep(objPtr); ensembleCmd = ckalloc(sizeof(EnsembleCmdRep)); - objPtr->internalRep.twoPtrValue.ptr1 = ensembleCmd; - objPtr->typePtr = &ensembleCmdType; + ECRSetIntRep(objPtr, ensembleCmd); } /* @@ -2754,14 +2767,14 @@ static void FreeEnsembleCmdRep( Tcl_Obj *objPtr) { - EnsembleCmdRep *ensembleCmd = objPtr->internalRep.twoPtrValue.ptr1; + EnsembleCmdRep *ensembleCmd; + ECRGetIntRep(objPtr, ensembleCmd); TclCleanupCommandMacro(ensembleCmd->token); if (ensembleCmd->fix) { Tcl_DecrRefCount(ensembleCmd->fix); } ckfree(ensembleCmd); - objPtr->typePtr = NULL; } /* @@ -2787,11 +2800,12 @@ DupEnsembleCmdRep( Tcl_Obj *objPtr, Tcl_Obj *copyPtr) { - EnsembleCmdRep *ensembleCmd = objPtr->internalRep.twoPtrValue.ptr1; + EnsembleCmdRep *ensembleCmd; EnsembleCmdRep *ensembleCopy = ckalloc(sizeof(EnsembleCmdRep)); - copyPtr->typePtr = &ensembleCmdType; - copyPtr->internalRep.twoPtrValue.ptr1 = ensembleCopy; + ECRGetIntRep(objPtr, ensembleCmd); + ECRSetIntRep(copyPtr, ensembleCopy); + ensembleCopy->epoch = ensembleCmd->epoch; ensembleCopy->token = ensembleCmd->token; ensembleCopy->token->refCount++; diff --git a/generic/tclExecute.c b/generic/tclExecute.c index f4c71ec..8abce42 100644 --- a/generic/tclExecute.c +++ b/generic/tclExecute.c @@ -820,20 +820,22 @@ ReleaseDictIterator( { Tcl_DictSearch *searchPtr; Tcl_Obj *dictPtr; + const Tcl_ObjIntRep *irPtr; + + irPtr = Tcl_FetchIntRep(objPtr, &dictIteratorType); + assert(irPtr != NULL); /* * First kill the search, and then release the reference to the dictionary * that we were holding. */ - searchPtr = objPtr->internalRep.twoPtrValue.ptr1; + searchPtr = irPtr->twoPtrValue.ptr1; Tcl_DictObjDone(searchPtr); ckfree(searchPtr); - dictPtr = objPtr->internalRep.twoPtrValue.ptr2; + dictPtr = irPtr->twoPtrValue.ptr2; TclDecrRefCount(dictPtr); - - objPtr->typePtr = NULL; } /* @@ -1522,19 +1524,23 @@ CompileExprObj( * Get the expression ByteCode from the object. If it exists, make sure it * is valid in the current context. */ - if (objPtr->typePtr == &exprCodeType) { + + ByteCodeGetIntRep(objPtr, &exprCodeType, codePtr); + + if (codePtr != NULL) { Namespace *namespacePtr = iPtr->varFramePtr->nsPtr; - codePtr = objPtr->internalRep.twoPtrValue.ptr1; if (((Interp *) *codePtr->interpHandle != iPtr) || (codePtr->compileEpoch != iPtr->compileEpoch) || (codePtr->nsPtr != namespacePtr) || (codePtr->nsEpoch != namespacePtr->resolverEpoch) || (codePtr->localCachePtr != iPtr->varFramePtr->localCachePtr)) { - TclFreeIntRep(objPtr); + Tcl_StoreIntRep(objPtr, &exprCodeType, NULL); + codePtr = NULL; } } - if (objPtr->typePtr != &exprCodeType) { + + if (codePtr == NULL) { /* * TIP #280: No invoker (yet) - Expression compilation. */ @@ -1634,7 +1640,9 @@ static void FreeExprCodeInternalRep( Tcl_Obj *objPtr) { - ByteCode *codePtr = objPtr->internalRep.twoPtrValue.ptr1; + ByteCode *codePtr; + ByteCodeGetIntRep(objPtr, &exprCodeType, codePtr); + assert(codePtr != NULL); TclReleaseByteCode(codePtr); } @@ -1672,7 +1680,8 @@ TclCompileObj( * compilation). Otherwise, check that it is "fresh" enough. */ - if (objPtr->typePtr == &tclByteCodeType) { + ByteCodeGetIntRep(objPtr, &tclByteCodeType, codePtr); + if (codePtr != NULL) { /* * Make sure the Bytecode hasn't been invalidated by, e.g., someone * redefining a command with a compile procedure (this might make the @@ -1690,7 +1699,6 @@ TclCompileObj( * here. */ - codePtr = objPtr->internalRep.twoPtrValue.ptr1; if (((Interp *) *codePtr->interpHandle != iPtr) || (codePtr->compileEpoch != iPtr->compileEpoch) || (codePtr->nsPtr != namespacePtr) @@ -1818,7 +1826,7 @@ TclCompileObj( iPtr->invokeWord = word; TclSetByteCodeFromAny(interp, objPtr, NULL, NULL); iPtr->invokeCmdFramePtr = NULL; - codePtr = objPtr->internalRep.twoPtrValue.ptr1; + ByteCodeGetIntRep(objPtr, &tclByteCodeType, codePtr); if (iPtr->varFramePtr->localCachePtr) { codePtr->localCachePtr = iPtr->varFramePtr->localCachePtr; codePtr->localCachePtr->refCount++; @@ -4909,7 +4917,7 @@ TEBCresume( */ if ((TclListObjGetElements(interp, valuePtr, &objc, &objv) == TCL_OK) - && (value2Ptr->typePtr != &tclListType) + && (NULL == Tcl_FetchIntRep(value2Ptr, &tclListType)) && (TclGetIntForIndexM(NULL , value2Ptr, objc-1, &index) == TCL_OK)) { TclDecrRefCount(value2Ptr); @@ -7406,13 +7414,16 @@ TEBCresume( TRACE_ERROR(interp); goto gotError; } - TclNewObj(statePtr); - statePtr->typePtr = &dictIteratorType; - statePtr->internalRep.twoPtrValue.ptr1 = searchPtr; - statePtr->internalRep.twoPtrValue.ptr2 = dictPtr; + { + Tcl_ObjIntRep ir; + TclNewObj(statePtr); + ir.twoPtrValue.ptr1 = searchPtr; + ir.twoPtrValue.ptr2 = dictPtr; + Tcl_StoreIntRep(statePtr, &dictIteratorType, &ir); + } varPtr = LOCAL(opnd); if (varPtr->value.objPtr) { - if (varPtr->value.objPtr->typePtr == &dictIteratorType) { + if (Tcl_FetchIntRep(varPtr->value.objPtr, &dictIteratorType)) { Tcl_Panic("mis-issued dictFirst!"); } TclDecrRefCount(varPtr->value.objPtr); @@ -7425,11 +7436,17 @@ TEBCresume( opnd = TclGetUInt4AtPtr(pc+1); TRACE(("%u => ", opnd)); statePtr = (*LOCAL(opnd)).value.objPtr; - if (statePtr == NULL || statePtr->typePtr != &dictIteratorType) { - Tcl_Panic("mis-issued dictNext!"); + { + const Tcl_ObjIntRep *irPtr; + + if (statePtr && + (irPtr = Tcl_FetchIntRep(statePtr, &dictIteratorType))) { + searchPtr = irPtr->twoPtrValue.ptr1; + Tcl_DictObjNext(searchPtr, &keyPtr, &valuePtr, &done); + } else { + Tcl_Panic("mis-issued dictNext!"); + } } - searchPtr = statePtr->internalRep.twoPtrValue.ptr1; - Tcl_DictObjNext(searchPtr, &keyPtr, &valuePtr, &done); pushDictIteratorResult: if (done) { TclNewObj(emptyPtr); @@ -10253,7 +10270,7 @@ EvalStatsCmd( for (i = 0; i < globalTablePtr->numBuckets; i++) { for (entryPtr = globalTablePtr->buckets[i]; entryPtr != NULL; entryPtr = entryPtr->nextPtr) { - if (entryPtr->objPtr->typePtr == &tclByteCodeType) { + if (NULL != Tcl_FetchIntRep(entryPtr->objPtr, &tclByteCodeType)) { numByteCodeLits++; } (void) TclGetStringFromObj(entryPtr->objPtr, &length); diff --git a/generic/tclIO.c b/generic/tclIO.c index 1460392..a441735 100644 --- a/generic/tclIO.c +++ b/generic/tclIO.c @@ -337,6 +337,22 @@ static const Tcl_ObjType chanObjType = { NULL /* setFromAnyProc */ }; +#define ChanSetIntRep(objPtr, resPtr) \ + do { \ + Tcl_ObjIntRep ir; \ + (resPtr)->refCount++; \ + ir.twoPtrValue.ptr1 = (resPtr); \ + ir.twoPtrValue.ptr2 = NULL; \ + Tcl_StoreIntRep((objPtr), &chanObjType, &ir); \ + } while (0) + +#define ChanGetIntRep(objPtr, resPtr) \ + do { \ + const Tcl_ObjIntRep *irPtr; \ + irPtr = Tcl_FetchIntRep((objPtr), &chanObjType); \ + (resPtr) = irPtr ? irPtr->twoPtrValue.ptr1 : NULL; \ + } while (0) + #define BUSY_STATE(st, fl) \ ((((st)->csPtrR) && ((fl) & TCL_READABLE)) || \ (((st)->csPtrW) && ((fl) & TCL_WRITABLE))) @@ -1511,12 +1527,12 @@ TclGetChannelFromObj( return TCL_ERROR; } - if (objPtr->typePtr == &chanObjType) { + ChanGetIntRep(objPtr, resPtr); + if (resPtr) { /* * Confirm validity of saved lookup results. */ - resPtr = (ResolvedChanName *) objPtr->internalRep.twoPtrValue.ptr1; statePtr = resPtr->statePtr; if ((resPtr->interp == interp) /* Same interp context */ /* No epoch change in channel since lookup */ @@ -1533,7 +1549,7 @@ TclGetChannelFromObj( if (chan == NULL) { if (resPtr) { - FreeChannelIntRep(objPtr); + Tcl_StoreIntRep(objPtr, &chanObjType, NULL); } return TCL_ERROR; } @@ -1544,14 +1560,10 @@ TclGetChannelFromObj( */ Tcl_Release((ClientData) resPtr->statePtr); - } else { - TclFreeIntRep(objPtr); - resPtr = (ResolvedChanName *) ckalloc(sizeof(ResolvedChanName)); - resPtr->refCount = 1; - objPtr->internalRep.twoPtrValue.ptr1 = (ClientData) resPtr; - objPtr->typePtr = &chanObjType; + resPtr->refCount = 0; + ChanSetIntRep(objPtr, resPtr); /* Overwrites, if needed */ } statePtr = ((Channel *)chan)->state; resPtr->statePtr = statePtr; @@ -11192,11 +11204,11 @@ DupChannelIntRep( register Tcl_Obj *copyPtr) /* Object with internal rep to set. Must not * currently have an internal rep.*/ { - ResolvedChanName *resPtr = srcPtr->internalRep.twoPtrValue.ptr1; + ResolvedChanName *resPtr; - resPtr->refCount++; - copyPtr->internalRep.twoPtrValue.ptr1 = resPtr; - copyPtr->typePtr = srcPtr->typePtr; + ChanGetIntRep(srcPtr, resPtr); + assert(resPtr); + ChanSetIntRep(copyPtr, resPtr); } /* @@ -11219,9 +11231,10 @@ static void FreeChannelIntRep( Tcl_Obj *objPtr) /* Object with internal rep to free. */ { - ResolvedChanName *resPtr = objPtr->internalRep.twoPtrValue.ptr1; + ResolvedChanName *resPtr; - objPtr->typePtr = NULL; + ChanGetIntRep(objPtr, resPtr); + assert(resPtr); if (resPtr->refCount-- > 1) { return; } diff --git a/generic/tclIndexObj.c b/generic/tclIndexObj.c index 9f38638..23b9637 100644 --- a/generic/tclIndexObj.c +++ b/generic/tclIndexObj.c @@ -115,14 +115,18 @@ Tcl_GetIndexFromObj( int flags, /* 0 or TCL_EXACT */ int *indexPtr) /* Place to store resulting integer index. */ { + if (!(flags & INDEX_TEMP_TABLE)) { + /* * See if there is a valid cached result from a previous lookup (doing the * check here saves the overhead of calling Tcl_GetIndexFromObjStruct in * the common case where the result is cached). */ - if (!(flags & INDEX_TEMP_TABLE) && objPtr->typePtr == &indexType) { - IndexRep *indexRep = objPtr->internalRep.twoPtrValue.ptr1; + const Tcl_ObjIntRep *irPtr = Tcl_FetchIntRep(objPtr, &indexType); + + if (irPtr) { + IndexRep *indexRep = irPtr->twoPtrValue.ptr1; /* * Here's hoping we don't get hit by unfortunate packing constraints @@ -135,6 +139,7 @@ Tcl_GetIndexFromObj( return TCL_OK; } } + } return Tcl_GetIndexFromObjStruct(interp, objPtr, tablePtr, sizeof(char *), msg, flags, indexPtr); } @@ -266,6 +271,7 @@ Tcl_GetIndexFromObjStruct( const char *const *entryPtr; Tcl_Obj *resultPtr; IndexRep *indexRep; + const Tcl_ObjIntRep *irPtr; /* Protect against invalid values, like -1 or 0. */ if (offset < (int)sizeof(char *)) { @@ -275,13 +281,16 @@ Tcl_GetIndexFromObjStruct( * See if there is a valid cached result from a previous lookup. */ - if (!(flags & INDEX_TEMP_TABLE) && objPtr->typePtr == &indexType) { - indexRep = objPtr->internalRep.twoPtrValue.ptr1; + if (!(flags & INDEX_TEMP_TABLE)) { + irPtr = Tcl_FetchIntRep(objPtr, &indexType); + if (irPtr) { + indexRep = irPtr->twoPtrValue.ptr1; if (indexRep->tablePtr==tablePtr && indexRep->offset==offset) { *indexPtr = indexRep->index; return TCL_OK; } } + } /* * Lookup the value of the object in the table. Accept unique @@ -337,17 +346,19 @@ Tcl_GetIndexFromObjStruct( */ if (!(flags & INDEX_TEMP_TABLE)) { - if (objPtr->typePtr == &indexType) { - indexRep = objPtr->internalRep.twoPtrValue.ptr1; - } else { - TclFreeIntRep(objPtr); - indexRep = ckalloc(sizeof(IndexRep)); - objPtr->internalRep.twoPtrValue.ptr1 = indexRep; - objPtr->typePtr = &indexType; - } - indexRep->tablePtr = (void *) tablePtr; - indexRep->offset = offset; - indexRep->index = index; + irPtr = Tcl_FetchIntRep(objPtr, &indexType); + if (irPtr) { + indexRep = irPtr->twoPtrValue.ptr1; + } else { + Tcl_ObjIntRep ir; + + indexRep = ckalloc(sizeof(IndexRep)); + ir.twoPtrValue.ptr1 = indexRep; + Tcl_StoreIntRep(objPtr, &indexType, &ir); + } + indexRep->tablePtr = (void *) tablePtr; + indexRep->offset = offset; + indexRep->index = index; } *indexPtr = index; @@ -446,16 +457,10 @@ static void UpdateStringOfIndex( Tcl_Obj *objPtr) { - IndexRep *indexRep = objPtr->internalRep.twoPtrValue.ptr1; - register char *buf; - register unsigned len; + IndexRep *indexRep = Tcl_FetchIntRep(objPtr, &indexType)->twoPtrValue.ptr1; register const char *indexStr = EXPAND_OF(indexRep); - len = strlen(indexStr); - buf = ckalloc(len + 1); - memcpy(buf, indexStr, len+1); - objPtr->bytes = buf; - objPtr->length = len; + Tcl_InitStringRep(objPtr, indexStr, strlen(indexStr)); } /* @@ -481,12 +486,14 @@ DupIndex( Tcl_Obj *srcPtr, Tcl_Obj *dupPtr) { - IndexRep *srcIndexRep = srcPtr->internalRep.twoPtrValue.ptr1; + Tcl_ObjIntRep ir; IndexRep *dupIndexRep = ckalloc(sizeof(IndexRep)); - memcpy(dupIndexRep, srcIndexRep, sizeof(IndexRep)); - dupPtr->internalRep.twoPtrValue.ptr1 = dupIndexRep; - dupPtr->typePtr = &indexType; + memcpy(dupIndexRep, Tcl_FetchIntRep(srcPtr, &indexType)->twoPtrValue.ptr1, + sizeof(IndexRep)); + + ir.twoPtrValue.ptr1 = dupIndexRep; + Tcl_StoreIntRep(dupPtr, &indexType, &ir); } /* @@ -510,7 +517,7 @@ static void FreeIndex( Tcl_Obj *objPtr) { - ckfree(objPtr->internalRep.twoPtrValue.ptr1); + ckfree(Tcl_FetchIntRep(objPtr, &indexType)->twoPtrValue.ptr1); objPtr->typePtr = NULL; } @@ -956,10 +963,10 @@ Tcl_WrongNumArgs( /* * Add the element, quoting it if necessary. */ + const Tcl_ObjIntRep *irPtr; - if (origObjv[i]->typePtr == &indexType) { - register IndexRep *indexRep = - origObjv[i]->internalRep.twoPtrValue.ptr1; + if ((irPtr = Tcl_FetchIntRep(origObjv[i], &indexType))) { + register IndexRep *indexRep = irPtr->twoPtrValue.ptr1; elementStr = EXPAND_OF(indexRep); elemLen = strlen(elementStr); @@ -1006,9 +1013,10 @@ Tcl_WrongNumArgs( * the correct error message even if the subcommand was abbreviated. * Otherwise, just use the string rep. */ + const Tcl_ObjIntRep *irPtr; - if (objv[i]->typePtr == &indexType) { - register IndexRep *indexRep = objv[i]->internalRep.twoPtrValue.ptr1; + if ((irPtr = Tcl_FetchIntRep(objv[i], &indexType))) { + register IndexRep *indexRep = irPtr->twoPtrValue.ptr1; Tcl_AppendStringsToObj(objPtr, EXPAND_OF(indexRep), NULL); } else { diff --git a/generic/tclInt.h b/generic/tclInt.h index 0b5ff0c..e1651da 100644 --- a/generic/tclInt.h +++ b/generic/tclInt.h @@ -2334,6 +2334,13 @@ typedef struct Interp { #define TCL_ALIGN(x) (((int)(x) + 7) & ~7) /* + * A common panic alert when memory allocation fails. + */ + +#define TclOOM(ptr, size) \ + ((size) && ((ptr)||(Tcl_Panic("unable to alloc %u bytes", (size)),1))) + +/* * The following enum values are used to specify the runtime platform setting * of the tclPlatform variable. */ @@ -2407,12 +2414,6 @@ typedef struct List { #define ListRepPtr(listPtr) \ ((List *) (listPtr)->internalRep.twoPtrValue.ptr1) -#define ListSetIntRep(objPtr, listRepPtr) \ - (objPtr)->internalRep.twoPtrValue.ptr1 = (void *)(listRepPtr), \ - (objPtr)->internalRep.twoPtrValue.ptr2 = NULL, \ - (listRepPtr)->refCount++, \ - (objPtr)->typePtr = &tclListType - #define ListObjGetElements(listPtr, objc, objv) \ ((objv) = &(ListRepPtr(listPtr)->elements), \ (objc) = ListRepPtr(listPtr)->elemCount) @@ -2713,7 +2714,6 @@ MODULE_SCOPE const Tcl_ObjType tclBooleanType; MODULE_SCOPE const Tcl_ObjType tclByteArrayType; MODULE_SCOPE const Tcl_ObjType tclByteCodeType; MODULE_SCOPE const Tcl_ObjType tclDoubleType; -MODULE_SCOPE const Tcl_ObjType tclEndOffsetType; MODULE_SCOPE const Tcl_ObjType tclIntType; MODULE_SCOPE const Tcl_ObjType tclListType; MODULE_SCOPE const Tcl_ObjType tclDictType; @@ -2974,6 +2974,8 @@ MODULE_SCOPE int TclGetChannelFromObj(Tcl_Interp *interp, MODULE_SCOPE CmdFrame * TclGetCmdFrameForProcedure(Proc *procPtr); MODULE_SCOPE int TclGetCompletionCodeFromObj(Tcl_Interp *interp, Tcl_Obj *value, int *code); +MODULE_SCOPE Proc * TclGetLambdaFromObj(Tcl_Interp *interp, + Tcl_Obj *objPtr, Tcl_Obj **nsObjPtrPtr); MODULE_SCOPE int TclGetNumberFromObj(Tcl_Interp *interp, Tcl_Obj *objPtr, ClientData *clientDataPtr, int *typePtr); @@ -4266,7 +4268,7 @@ MODULE_SCOPE void TclDbInitNewObj(Tcl_Obj *objPtr, const char *file, (objPtr)->length = 0; \ } else { \ (objPtr)->bytes = (char *) ckalloc((unsigned) ((len) + 1)); \ - memcpy((objPtr)->bytes, (bytePtr), (unsigned) (len)); \ + memcpy((objPtr)->bytes, (bytePtr) ? (bytePtr) : &tclEmptyString, (unsigned) (len)); \ (objPtr)->bytes[len] = '\0'; \ (objPtr)->length = (len); \ } @@ -4328,6 +4330,18 @@ MODULE_SCOPE void TclDbInitNewObj(Tcl_Obj *objPtr, const char *file, /* *---------------------------------------------------------------- + * Macro used by the Tcl core to test whether an object has a + * string representation (or is a 'pure' internal value). + * The ANSI C "prototype" for this macro is: + * + * MODULE_SCOPE int TclHasStringRep(Tcl_Obj *objPtr); + *---------------------------------------------------------------- + */ + +#define TclHasStringRep(objPtr) ((objPtr)->bytes != NULL) + +/* + *---------------------------------------------------------------- * Macros used by the Tcl core to grow Tcl_Token arrays. They use the same * growth algorithm as used in tclStringObj.c for growing strings. The ANSI C * "prototype" for this macro is: diff --git a/generic/tclInterp.c b/generic/tclInterp.c index d9dfd37..a0bac6b 100644 --- a/generic/tclInterp.c +++ b/generic/tclInterp.c @@ -1823,7 +1823,7 @@ AliasNRCmd( cmdc = prefc + objc - 1; listPtr = Tcl_NewListObj(cmdc, NULL); - listRep = listPtr->internalRep.twoPtrValue.ptr1; + listRep = ListRepPtr(listPtr); listRep->elemCount = cmdc; cmdv = &listRep->elements; diff --git a/generic/tclLink.c b/generic/tclLink.c index 7366acc..9c698a0 100644 --- a/generic/tclLink.c +++ b/generic/tclLink.c @@ -416,7 +416,8 @@ LinkTraceProc( case TCL_LINK_DOUBLE: if (Tcl_GetDoubleFromObj(NULL, valueObj, &linkPtr->lastValue.d) != TCL_OK) { #ifdef ACCEPT_NAN - if (valueObj->typePtr != &tclDoubleType) { + Tcl_ObjIntRep *irPtr = Tcl_FetchIntRep(valueObj, &tclDoubleType); + if (irPtr == NULL) { #endif if (GetInvalidDoubleFromObj(valueObj, &linkPtr->lastValue.d) != TCL_OK) { Tcl_ObjSetVar2(interp, linkPtr->varName, NULL, ObjValue(linkPtr), @@ -425,7 +426,7 @@ LinkTraceProc( } #ifdef ACCEPT_NAN } - linkPtr->lastValue.d = valueObj->internalRep.doubleValue; + linkPtr->lastValue.d = irPtr->doubleValue; #endif } LinkedVar(double) = linkPtr->lastValue.d; diff --git a/generic/tclListObj.c b/generic/tclListObj.c index 11374cc..c6d8d0e 100644 --- a/generic/tclListObj.c +++ b/generic/tclListObj.c @@ -12,6 +12,7 @@ */ #include "tclInt.h" +#include <assert.h> /* * Prototypes for functions defined later in this file: @@ -46,6 +47,27 @@ const Tcl_ObjType tclListType = { SetListFromAny /* setFromAnyProc */ }; +/* Macros to manipulate the List internal rep */ + +#define ListSetIntRep(objPtr, listRepPtr) \ + do { \ + Tcl_ObjIntRep ir; \ + ir.twoPtrValue.ptr1 = (listRepPtr); \ + ir.twoPtrValue.ptr2 = NULL; \ + (listRepPtr)->refCount++; \ + Tcl_StoreIntRep((objPtr), &tclListType, &ir); \ + } while (0) + +#define ListGetIntRep(objPtr, listRepPtr) \ + do { \ + const Tcl_ObjIntRep *irPtr; \ + irPtr = Tcl_FetchIntRep((objPtr), &tclListType); \ + (listRepPtr) = irPtr ? irPtr->twoPtrValue.ptr1 : NULL; \ + } while (0) + +#define ListResetIntRep(objPtr, listRepPtr) \ + Tcl_FetchIntRep((objPtr), &tclListType)->twoPtrValue.ptr1 = (listRepPtr) + #ifndef TCL_MIN_ELEMENT_GROWTH #define TCL_MIN_ELEMENT_GROWTH TCL_MIN_GROWTH/sizeof(Tcl_Obj *) #endif @@ -374,8 +396,7 @@ Tcl_SetListObj( listRepPtr = NewListIntRep(objc, objv, 1); ListSetIntRep(objPtr, listRepPtr); } else { - objPtr->bytes = &tclEmptyString; - objPtr->length = 0; + Tcl_InitStringRep(objPtr, NULL, 0); } } @@ -407,8 +428,10 @@ TclListObjCopy( * to be returned. */ { Tcl_Obj *copyPtr; + List *listRepPtr; - if (listPtr->typePtr != &tclListType) { + ListGetIntRep(listPtr, listRepPtr); + if (NULL == listRepPtr) { if (SetListFromAny(interp, listPtr) != TCL_OK) { return NULL; } @@ -462,10 +485,13 @@ Tcl_ListObjGetElements( { register List *listRepPtr; - if (listPtr->typePtr != &tclListType) { - int result; + ListGetIntRep(listPtr, listRepPtr); + + if (listRepPtr == NULL) { + int result, length; - if (listPtr->bytes == &tclEmptyString) { + (void) Tcl_GetStringFromObj(listPtr, &length); + if (length == 0) { *objcPtr = 0; *objvPtr = NULL; return TCL_OK; @@ -474,8 +500,8 @@ Tcl_ListObjGetElements( if (result != TCL_OK) { return result; } + ListGetIntRep(listPtr, listRepPtr); } - listRepPtr = ListRepPtr(listPtr); *objcPtr = listRepPtr->elemCount; *objvPtr = &listRepPtr->elements; return TCL_OK; @@ -572,10 +598,13 @@ Tcl_ListObjAppendElement( if (Tcl_IsShared(listPtr)) { Tcl_Panic("%s called with shared object", "Tcl_ListObjAppendElement"); } - if (listPtr->typePtr != &tclListType) { - int result; - if (listPtr->bytes == &tclEmptyString) { + ListGetIntRep(listPtr, listRepPtr); + if (listRepPtr == NULL) { + int result, length; + + (void) Tcl_GetStringFromObj(listPtr, &length); + if (length == 0) { Tcl_SetListObj(listPtr, 1, &objPtr); return TCL_OK; } @@ -583,9 +612,9 @@ Tcl_ListObjAppendElement( if (result != TCL_OK) { return result; } + ListGetIntRep(listPtr, listRepPtr); } - listRepPtr = ListRepPtr(listPtr); numElems = listRepPtr->elemCount; numRequired = numElems + 1 ; needGrow = (numRequired > listRepPtr->maxElemCount); @@ -681,7 +710,11 @@ Tcl_ListObjAppendElement( } listRepPtr = newPtr; } - listPtr->internalRep.twoPtrValue.ptr1 = listRepPtr; + ListResetIntRep(listPtr, listRepPtr); + listRepPtr->refCount++; + TclFreeIntRep(listPtr); + ListSetIntRep(listPtr, listRepPtr); + listRepPtr->refCount--; /* * Add objPtr to the end of listPtr's array of element pointers. Increment @@ -736,10 +769,12 @@ Tcl_ListObjIndex( { register List *listRepPtr; - if (listPtr->typePtr != &tclListType) { - int result; + ListGetIntRep(listPtr, listRepPtr); + if (listRepPtr == NULL) { + int result, length; - if (listPtr->bytes == &tclEmptyString) { + (void) Tcl_GetStringFromObj(listPtr, &length); + if (length == 0) { *objPtrPtr = NULL; return TCL_OK; } @@ -747,9 +782,9 @@ Tcl_ListObjIndex( if (result != TCL_OK) { return result; } + ListGetIntRep(listPtr, listRepPtr); } - listRepPtr = ListRepPtr(listPtr); if ((index < 0) || (index >= listRepPtr->elemCount)) { *objPtrPtr = NULL; } else { @@ -789,10 +824,12 @@ Tcl_ListObjLength( { register List *listRepPtr; - if (listPtr->typePtr != &tclListType) { - int result; + ListGetIntRep(listPtr, listRepPtr); + if (listRepPtr == NULL) { + int result, length; - if (listPtr->bytes == &tclEmptyString) { + (void) Tcl_GetStringFromObj(listPtr, &length); + if (length == 0) { *intPtr = 0; return TCL_OK; } @@ -800,9 +837,9 @@ Tcl_ListObjLength( if (result != TCL_OK) { return result; } + ListGetIntRep(listPtr, listRepPtr); } - listRepPtr = ListRepPtr(listPtr); *intPtr = listRepPtr->elemCount; return TCL_OK; } @@ -862,9 +899,14 @@ Tcl_ListObjReplace( if (Tcl_IsShared(listPtr)) { Tcl_Panic("%s called with shared object", "Tcl_ListObjReplace"); } - if (listPtr->typePtr != &tclListType) { - if (listPtr->bytes == &tclEmptyString) { - if (!objc) { + + ListGetIntRep(listPtr, listRepPtr); + if (listRepPtr == NULL) { + int length; + + (void) Tcl_GetStringFromObj(listPtr, &length); + if (length == 0) { + if (objc == 0) { return TCL_OK; } Tcl_SetListObj(listPtr, objc, NULL); @@ -875,6 +917,7 @@ Tcl_ListObjReplace( return result; } } + ListGetIntRep(listPtr, listRepPtr); } /* @@ -885,7 +928,6 @@ Tcl_ListObjReplace( * Resist any temptation to optimize this case. */ - listRepPtr = ListRepPtr(listPtr); elemPtrs = &listRepPtr->elements; numElems = listRepPtr->elemCount; @@ -939,7 +981,7 @@ Tcl_ListObjReplace( } if (newPtr) { listRepPtr = newPtr; - listPtr->internalRep.twoPtrValue.ptr1 = listRepPtr; + ListResetIntRep(listPtr, listRepPtr); elemPtrs = &listRepPtr->elements; listRepPtr->maxElemCount = attempt; needGrow = numRequired > listRepPtr->maxElemCount; @@ -1012,7 +1054,7 @@ Tcl_ListObjReplace( } } - listPtr->internalRep.twoPtrValue.ptr1 = listRepPtr; + ListResetIntRep(listPtr, listRepPtr); listRepPtr->refCount++; elemPtrs = &listRepPtr->elements; @@ -1085,10 +1127,15 @@ Tcl_ListObjReplace( listRepPtr->elemCount = numRequired; /* - * Invalidate and free any old string representation since it no longer - * reflects the list's internal representation. + * Invalidate and free any old representations that may not agree + * with the revised list's internal representation. */ + listRepPtr->refCount++; + TclFreeIntRep(listPtr); + ListSetIntRep(listPtr, listRepPtr); + listRepPtr->refCount--; + TclInvalidateStringRep(listPtr); return TCL_OK; } @@ -1127,6 +1174,7 @@ TclLindexList( int index; /* Index into the list. */ Tcl_Obj *indexListCopy; + List *listRepPtr; /* * Determine whether argPtr designates a list or a single index. We have @@ -1134,7 +1182,8 @@ TclLindexList( * shimmering; see TIP#22 and TIP#33 for the details. */ - if (argPtr->typePtr != &tclListType + ListGetIntRep(argPtr, listRepPtr); + if ((listRepPtr == NULL) && TclGetIntForIndexM(NULL , argPtr, 0, &index) == TCL_OK) { /* * argPtr designates a single index. @@ -1165,19 +1214,12 @@ TclLindexList( return TclLindexFlat(interp, listPtr, 1, &argPtr); } - if (indexListCopy->typePtr == &tclListType) { - List *listRepPtr = ListRepPtr(indexListCopy); + ListGetIntRep(indexListCopy, listRepPtr); - listPtr = TclLindexFlat(interp, listPtr, listRepPtr->elemCount, - &listRepPtr->elements); - } else { - int indexCount = -1; /* Size of the array of list indices. */ - Tcl_Obj **indices = NULL; - /* Array of list indices. */ + assert(listRepPtr != NULL); - Tcl_ListObjGetElements(NULL, indexListCopy, &indexCount, &indices); - listPtr = TclLindexFlat(interp, listPtr, indexCount, indices); - } + listPtr = TclLindexFlat(interp, listPtr, listRepPtr->elemCount, + &listRepPtr->elements); Tcl_DecrRefCount(indexListCopy); return listPtr; } @@ -1312,6 +1354,7 @@ TclLsetList( Tcl_Obj *retValuePtr; /* Pointer to the list to be returned. */ int index; /* Current index in the list - discarded. */ Tcl_Obj *indexListCopy; + List *listRepPtr; /* * Determine whether the index arg designates a list or a single index. @@ -1319,7 +1362,8 @@ TclLsetList( * shimmering; see TIP #22 and #23 for details. */ - if (indexArgPtr->typePtr != &tclListType + ListGetIntRep(indexArgPtr, listRepPtr); + if (listRepPtr == NULL && TclGetIntForIndexM(NULL, indexArgPtr, 0, &index) == TCL_OK) { /* * indexArgPtr designates a single index. @@ -1404,6 +1448,7 @@ TclLsetFlat( { int index, result, len; Tcl_Obj *subListPtr, *retValuePtr, *chainPtr; + Tcl_ObjIntRep *irPtr; /* * If there are no indices, simply return the new value. (Without @@ -1534,7 +1579,8 @@ TclLsetFlat( * them at that time. */ - parentList->internalRep.twoPtrValue.ptr2 = chainPtr; + irPtr = Tcl_FetchIntRep(parentList, &tclListType); + irPtr->twoPtrValue.ptr2 = chainPtr; chainPtr = parentList; } } while (indexCount > 0); @@ -1548,22 +1594,32 @@ TclLsetFlat( while (chainPtr) { Tcl_Obj *objPtr = chainPtr; + List *listRepPtr; + /* + * Clear away our intrep surgery mess. + */ + + irPtr = Tcl_FetchIntRep(objPtr, &tclListType); + listRepPtr = irPtr->twoPtrValue.ptr1; + chainPtr = irPtr->twoPtrValue.ptr2; + if (result == TCL_OK) { + /* * We're going to store valuePtr, so spoil string reps of all * containing lists. */ + listRepPtr->refCount++; + TclFreeIntRep(objPtr); + ListSetIntRep(objPtr, listRepPtr); + listRepPtr->refCount--; + TclInvalidateStringRep(objPtr); + } else { + irPtr->twoPtrValue.ptr2 = NULL; } - - /* - * Clear away our intrep surgery mess. - */ - - chainPtr = objPtr->internalRep.twoPtrValue.ptr2; - objPtr->internalRep.twoPtrValue.ptr2 = NULL; } if (result != TCL_OK) { @@ -1590,8 +1646,8 @@ TclLsetFlat( Tcl_ListObjAppendElement(NULL, subListPtr, valuePtr); } else { TclListObjSetElement(NULL, subListPtr, index, valuePtr); + TclInvalidateStringRep(subListPtr); } - TclInvalidateStringRep(subListPtr); Tcl_IncrRefCount(retValuePtr); return retValuePtr; } @@ -1647,10 +1703,13 @@ TclListObjSetElement( if (Tcl_IsShared(listPtr)) { Tcl_Panic("%s called with shared object", "TclListObjSetElement"); } - if (listPtr->typePtr != &tclListType) { - int result; - if (listPtr->bytes == &tclEmptyString) { + ListGetIntRep(listPtr, listRepPtr); + if (listRepPtr == NULL) { + int result, length; + + (void) Tcl_GetStringFromObj(listPtr, &length); + if (length == 0) { if (interp != NULL) { Tcl_SetObjResult(interp, Tcl_NewStringObj("list index out of range", -1)); @@ -1663,9 +1722,9 @@ TclListObjSetElement( if (result != TCL_OK) { return result; } + ListGetIntRep(listPtr, listRepPtr); } - listRepPtr = ListRepPtr(listPtr); elemCount = listRepPtr->elemCount; /* @@ -1708,7 +1767,8 @@ TclListObjSetElement( listRepPtr->refCount--; - listPtr->internalRep.twoPtrValue.ptr1 = listRepPtr = newPtr; + listRepPtr = newPtr; + ListResetIntRep(listPtr, listRepPtr); } elemPtrs = &listRepPtr->elements; @@ -1730,6 +1790,18 @@ TclListObjSetElement( elemPtrs[index] = valuePtr; + /* + * Invalidate outdated intreps. + */ + + ListGetIntRep(listPtr, listRepPtr); + listRepPtr->refCount++; + TclFreeIntRep(listPtr); + ListSetIntRep(listPtr, listRepPtr); + listRepPtr->refCount--; + + TclInvalidateStringRep(listPtr); + return TCL_OK; } @@ -1745,9 +1817,8 @@ TclListObjSetElement( * None. * * Side effects: - * Frees listPtr's List* internal representation and sets listPtr's - * internalRep.twoPtrValue.ptr1 to NULL. Decrements the ref counts of all - * element objects, which may free them. + * Frees listPtr's List* internal representation, if no longer shared. + * May decrement the ref counts of element objects, which may free them. * *---------------------------------------------------------------------- */ @@ -1756,7 +1827,10 @@ static void FreeListInternalRep( Tcl_Obj *listPtr) /* List object with internal rep to free. */ { - List *listRepPtr = ListRepPtr(listPtr); + List *listRepPtr; + + ListGetIntRep(listPtr, listRepPtr); + assert(listRepPtr != NULL); if (listRepPtr->refCount-- <= 1) { Tcl_Obj **elemPtrs = &listRepPtr->elements; @@ -1767,8 +1841,6 @@ FreeListInternalRep( } ckfree(listRepPtr); } - - listPtr->typePtr = NULL; } /* @@ -1793,8 +1865,10 @@ DupListInternalRep( Tcl_Obj *srcPtr, /* Object with internal rep to copy. */ Tcl_Obj *copyPtr) /* Object with internal rep to set. */ { - List *listRepPtr = ListRepPtr(srcPtr); + List *listRepPtr; + ListGetIntRep(srcPtr, listRepPtr); + assert(listRepPtr != NULL); ListSetIntRep(copyPtr, listRepPtr); } @@ -1833,7 +1907,7 @@ SetListFromAny( * describe duplicate keys). */ - if (objPtr->typePtr == &tclDictType && !objPtr->bytes) { + if (!TclHasStringRep(objPtr) && Tcl_FetchIntRep(objPtr, &tclDictType)) { Tcl_Obj *keyPtr, *valuePtr; Tcl_DictSearch search; int done, size; @@ -1891,10 +1965,12 @@ SetListFromAny( while (nextElem < limit) { const char *elemStart; + char *check; int elemSize, literal; if (TCL_OK != TclFindElement(interp, nextElem, limit - nextElem, &elemStart, &nextElem, &elemSize, &literal)) { + fail: while (--elemPtrs >= &listRepPtr->elements) { Tcl_DecrRefCount(*elemPtrs); } @@ -1905,14 +1981,21 @@ SetListFromAny( break; } - /* TODO: replace panic with error on alloc failure? */ - if (literal) { - TclNewStringObj(*elemPtrs, elemStart, elemSize); - } else { - TclNewObj(*elemPtrs); - (*elemPtrs)->bytes = ckalloc((unsigned) elemSize + 1); - (*elemPtrs)->length = TclCopyAndCollapse(elemSize, elemStart, - (*elemPtrs)->bytes); + TclNewObj(*elemPtrs); + TclInvalidateStringRep(*elemPtrs); + check = Tcl_InitStringRep(*elemPtrs, literal ? elemStart : NULL, + elemSize); + if (elemSize && check == NULL) { + if (interp) { + Tcl_SetObjResult(interp, Tcl_NewStringObj( + "cannot construct list, out of memory", -1)); + Tcl_SetErrorCode(interp, "TCL", "MEMORY", NULL); + } + goto fail; + } + if (!literal) { + Tcl_InitStringRep(*elemPtrs, NULL, + TclCopyAndCollapse(elemSize, elemStart, check)); } Tcl_IncrRefCount(*elemPtrs++);/* Since list now holds ref to it. */ @@ -1922,12 +2005,11 @@ SetListFromAny( } /* - * Free the old internalRep before setting the new one. We do this as late + * Store the new internalRep. We do this as late * as possible to allow the conversion code, in particular - * Tcl_GetStringFromObj, to use that old internalRep. + * Tcl_GetStringFromObj, to use the old internalRep. */ - TclFreeIntRep(objPtr); ListSetIntRep(objPtr, listRepPtr); return TCL_OK; } @@ -1959,12 +2041,17 @@ UpdateStringOfList( { # define LOCAL_SIZE 20 int localFlags[LOCAL_SIZE], *flagPtr = NULL; - List *listRepPtr = ListRepPtr(listPtr); - int numElems = listRepPtr->elemCount; - int i, length, bytesNeeded = 0; + int numElems, i, length, bytesNeeded = 0; const char *elem; char *dst; Tcl_Obj **elemPtrs; + List *listRepPtr; + + ListGetIntRep(listPtr, listRepPtr); + + assert(listRepPtr != NULL); + + numElems = listRepPtr->elemCount; /* * Mark the list as being canonical; although it will now have a string @@ -1979,8 +2066,7 @@ UpdateStringOfList( */ if (numElems == 0) { - listPtr->bytes = &tclEmptyString; - listPtr->length = 0; + Tcl_InitStringRep(listPtr, NULL, 0); return; } @@ -2009,22 +2095,21 @@ UpdateStringOfList( if (bytesNeeded > INT_MAX - numElems + 1) { Tcl_Panic("max size for a Tcl value (%d bytes) exceeded", INT_MAX); } - bytesNeeded += numElems; + bytesNeeded += numElems - 1; /* * Pass 2: copy into string rep buffer. */ - listPtr->length = bytesNeeded - 1; - listPtr->bytes = ckalloc(bytesNeeded); - dst = listPtr->bytes; + dst = Tcl_InitStringRep(listPtr, NULL, bytesNeeded); + TclOOM(dst, bytesNeeded); for (i = 0; i < numElems; i++) { flagPtr[i] |= (i ? TCL_DONT_QUOTE_HASH : 0); elem = TclGetStringFromObj(elemPtrs[i], &length); dst += TclConvertElement(elem, length, dst, flagPtr[i]); *dst++ = ' '; } - listPtr->bytes[listPtr->length] = '\0'; + (void) Tcl_InitStringRep(listPtr, NULL, bytesNeeded); if (flagPtr != localFlags) { ckfree(flagPtr); diff --git a/generic/tclNamesp.c b/generic/tclNamesp.c index e1bad0e..6e112b3 100644 --- a/generic/tclNamesp.c +++ b/generic/tclNamesp.c @@ -25,6 +25,7 @@ #include "tclInt.h" #include "tclCompile.h" /* for TclLogCommandInfo visibility */ +#include <assert.h> /* * Thread-local storage used to avoid having a global lock on data that is not @@ -154,6 +155,22 @@ static const Tcl_ObjType nsNameType = { SetNsNameFromAny /* setFromAnyProc */ }; +#define NsNameSetIntRep(objPtr, nnPtr) \ + do { \ + Tcl_ObjIntRep ir; \ + (nnPtr)->refCount++; \ + ir.twoPtrValue.ptr1 = (nnPtr); \ + ir.twoPtrValue.ptr2 = NULL; \ + Tcl_StoreIntRep((objPtr), &nsNameType, &ir); \ + } while (0) + +#define NsNameGetIntRep(objPtr, nnPtr) \ + do { \ + const Tcl_ObjIntRep *irPtr; \ + irPtr = Tcl_FetchIntRep((objPtr), &nsNameType); \ + (nnPtr) = irPtr ? irPtr->twoPtrValue.ptr1 : NULL; \ + } while (0) + /* * Array of values describing how to implement each standard subcommand of the * "namespace" command. @@ -2874,15 +2891,16 @@ GetNamespaceFromObj( Tcl_Namespace **nsPtrPtr) /* Result namespace pointer goes here. */ { ResolvedNsName *resNamePtr; - Namespace *nsPtr, *refNsPtr; - if (objPtr->typePtr == &nsNameType) { + NsNameGetIntRep(objPtr, resNamePtr); + if (resNamePtr) { + Namespace *nsPtr, *refNsPtr; + /* * Check that the ResolvedNsName is still valid; avoid letting the ref * cross interps. */ - resNamePtr = objPtr->internalRep.twoPtrValue.ptr1; nsPtr = resNamePtr->nsPtr; refNsPtr = resNamePtr->refNsPtr; if (!(nsPtr->flags & NS_DYING) && (interp == nsPtr->interp) @@ -2891,9 +2909,11 @@ GetNamespaceFromObj( *nsPtrPtr = (Tcl_Namespace *) nsPtr; return TCL_OK; } + Tcl_StoreIntRep(objPtr, &nsNameType, NULL); } if (SetNsNameFromAny(interp, objPtr) == TCL_OK) { - resNamePtr = objPtr->internalRep.twoPtrValue.ptr1; + NsNameGetIntRep(objPtr, resNamePtr); + assert(resNamePtr != NULL); *nsPtrPtr = (Tcl_Namespace *) resNamePtr->nsPtr; return TCL_OK; } @@ -4663,8 +4683,11 @@ FreeNsNameInternalRep( register Tcl_Obj *objPtr) /* nsName object with internal representation * to free. */ { - ResolvedNsName *resNamePtr = objPtr->internalRep.twoPtrValue.ptr1; + ResolvedNsName *resNamePtr; + NsNameGetIntRep(objPtr, resNamePtr); + assert(resNamePtr != NULL); + /* * Decrement the reference count of the namespace. If there are no more * references, free it up. @@ -4680,7 +4703,6 @@ FreeNsNameInternalRep( TclNsDecrRefCount(resNamePtr->nsPtr); ckfree(resNamePtr); } - objPtr->typePtr = NULL; } /* @@ -4707,11 +4729,11 @@ DupNsNameInternalRep( Tcl_Obj *srcPtr, /* Object with internal rep to copy. */ register Tcl_Obj *copyPtr) /* Object with internal rep to set. */ { - ResolvedNsName *resNamePtr = srcPtr->internalRep.twoPtrValue.ptr1; + ResolvedNsName *resNamePtr; - copyPtr->internalRep.twoPtrValue.ptr1 = resNamePtr; - resNamePtr->refCount++; - copyPtr->typePtr = &nsNameType; + NsNameGetIntRep(srcPtr, resNamePtr); + assert(resNamePtr != NULL); + NsNameSetIntRep(copyPtr, resNamePtr); } /* @@ -4756,24 +4778,15 @@ SetNsNameFromAny( TclGetNamespaceForQualName(interp, name, NULL, TCL_FIND_ONLY_NS, &nsPtr, &dummy1Ptr, &dummy2Ptr, &dummy); + if ((nsPtr == NULL) || (nsPtr->flags & NS_DYING)) { + return TCL_ERROR; + } + /* * If we found a namespace, then create a new ResolvedNsName structure * that holds a reference to it. */ - if ((nsPtr == NULL) || (nsPtr->flags & NS_DYING)) { - /* - * Our failed lookup proves any previously cached nsName intrep is no - * longer valid. Get rid of it so we no longer waste memory storing - * it, nor time determining its invalidity again and again. - */ - - if (objPtr->typePtr == &nsNameType) { - TclFreeIntRep(objPtr); - } - return TCL_ERROR; - } - nsPtr->refCount++; resNamePtr = ckalloc(sizeof(ResolvedNsName)); resNamePtr->nsPtr = nsPtr; @@ -4782,10 +4795,8 @@ SetNsNameFromAny( } else { resNamePtr->refNsPtr = (Namespace *) TclGetCurrentNamespace(interp); } - resNamePtr->refCount = 1; - TclFreeIntRep(objPtr); - objPtr->internalRep.twoPtrValue.ptr1 = resNamePtr; - objPtr->typePtr = &nsNameType; + resNamePtr->refCount = 0; + NsNameSetIntRep(objPtr, resNamePtr); return TCL_OK; } diff --git a/generic/tclOOCall.c b/generic/tclOOCall.c index ac0b94d..667d4a9 100644 --- a/generic/tclOOCall.c +++ b/generic/tclOOCall.c @@ -15,6 +15,7 @@ #endif #include "tclInt.h" #include "tclOOInt.h" +#include <assert.h> /* * Structure containing a CallContext and any other values needed only during @@ -89,6 +90,7 @@ static const Tcl_ObjType methodNameType = { NULL, NULL }; + /* * ---------------------------------------------------------------------- @@ -178,11 +180,12 @@ StashCallChain( Tcl_Obj *objPtr, CallChain *callPtr) { + Tcl_ObjIntRep ir; + callPtr->refCount++; TclGetString(objPtr); - TclFreeIntRep(objPtr); - objPtr->typePtr = &methodNameType; - objPtr->internalRep.twoPtrValue.ptr1 = callPtr; + ir.twoPtrValue.ptr1 = callPtr; + Tcl_StoreIntRep(objPtr, &methodNameType, &ir); } void @@ -209,21 +212,16 @@ DupMethodNameRep( Tcl_Obj *srcPtr, Tcl_Obj *dstPtr) { - register CallChain *callPtr = srcPtr->internalRep.twoPtrValue.ptr1; - - dstPtr->typePtr = &methodNameType; - dstPtr->internalRep.twoPtrValue.ptr1 = callPtr; - callPtr->refCount++; + StashCallChain(dstPtr, + Tcl_FetchIntRep(srcPtr, &methodNameType)->twoPtrValue.ptr1); } static void FreeMethodNameRep( Tcl_Obj *objPtr) { - register CallChain *callPtr = objPtr->internalRep.twoPtrValue.ptr1; - - TclOODeleteChain(callPtr); - objPtr->typePtr = NULL; + TclOODeleteChain( + Tcl_FetchIntRep(objPtr, &methodNameType)->twoPtrValue.ptr1); } /* @@ -961,15 +959,16 @@ TclOOGetCallContext( * the object, and in the class). */ + const Tcl_ObjIntRep *irPtr; const int reuseMask = ((flags & PUBLIC_METHOD) ? ~0 : ~PUBLIC_METHOD); - if (cacheInThisObj->typePtr == &methodNameType) { - callPtr = cacheInThisObj->internalRep.twoPtrValue.ptr1; + if ((irPtr = Tcl_FetchIntRep(cacheInThisObj, &methodNameType))) { + callPtr = irPtr->twoPtrValue.ptr1; if (IsStillValid(callPtr, oPtr, flags, reuseMask)) { callPtr->refCount++; goto returnContext; } - FreeMethodNameRep(cacheInThisObj); + Tcl_StoreIntRep(cacheInThisObj, &methodNameType, NULL); } if (oPtr->flags & USE_CLASS_CACHE) { diff --git a/generic/tclOOMethod.c b/generic/tclOOMethod.c index 9c49caa..ce397f8 100644 --- a/generic/tclOOMethod.c +++ b/generic/tclOOMethod.c @@ -791,6 +791,7 @@ PushMethodCallFrame( register int result; const char *namePtr; CallFrame **framePtrPtr = &fdPtr->framePtr; + ByteCode *codePtr; /* * Compute basic information on the basis of the type of method it is. @@ -856,10 +857,8 @@ PushMethodCallFrame( * alternative is *so* slow... */ - if (pmPtr->procPtr->bodyPtr->typePtr == &tclByteCodeType) { - ByteCode *codePtr = - pmPtr->procPtr->bodyPtr->internalRep.twoPtrValue.ptr1; - + ByteCodeGetIntRep(pmPtr->procPtr->bodyPtr, &tclByteCodeType, codePtr); + if (codePtr) { codePtr->nsPtr = nsPtr; } result = TclProcCompileProc(interp, pmPtr->procPtr, @@ -1314,7 +1313,7 @@ CloneProcedureMethod( */ bodyObj = Tcl_DuplicateObj(pmPtr->procPtr->bodyPtr); - TclFreeIntRep(bodyObj); + Tcl_StoreIntRep(pmPtr->procPtr->bodyPtr, &tclByteCodeType, NULL); /* * Create the actual copy of the method record, manufacturing a new proc @@ -1543,9 +1542,7 @@ TclOOGetMethodBody( if (mPtr->typePtr == &procMethodType) { ProcedureMethod *pmPtr = mPtr->clientData; - if (pmPtr->procPtr->bodyPtr->bytes == NULL) { - (void) Tcl_GetString(pmPtr->procPtr->bodyPtr); - } + (void) TclGetString(pmPtr->procPtr->bodyPtr); return pmPtr->procPtr->bodyPtr; } return NULL; diff --git a/generic/tclObj.c b/generic/tclObj.c index 1a00011..9301d9d 100644 --- a/generic/tclObj.c +++ b/generic/tclObj.c @@ -17,6 +17,7 @@ #include "tclInt.h" #include "tommath.h" #include <math.h> +#include <assert.h> /* * Table of all object types. @@ -395,7 +396,6 @@ TclInitObjSubsystem(void) Tcl_RegisterObjType(&tclByteArrayType); Tcl_RegisterObjType(&tclDoubleType); - Tcl_RegisterObjType(&tclEndOffsetType); Tcl_RegisterObjType(&tclIntType); Tcl_RegisterObjType(&tclStringType); Tcl_RegisterObjType(&tclListType); @@ -1059,9 +1059,8 @@ TclDbInitNewObj( * debugging. */ { objPtr->refCount = 0; - objPtr->bytes = &tclEmptyString; - objPtr->length = 0; objPtr->typePtr = NULL; + TclInitStringRep(objPtr, NULL, 0); #ifdef TCL_THREADS /* @@ -1698,6 +1697,91 @@ Tcl_GetStringFromObj( /* *---------------------------------------------------------------------- * + * Tcl_InitStringRep -- + * + * This function is called in several configurations to provide all + * the tools needed to set an object's string representation. The + * function is determined by the arguments. + * + * (objPtr->bytes != NULL && bytes != NULL) || (numBytes < 0) + * Invalid call -- panic! + * + * objPtr->bytes == NULL && bytes == NULL && numBytes >= 0 + * Allocation only - allocate space for (numBytes+1) chars. + * store in objPtr->bytes and return. Also sets + * objPtr->length to 0 and objPtr->bytes[0] to NUL. + * + * objPtr->bytes == NULL && bytes != NULL && numBytes >= 0 + * Allocate and copy. bytes is assumed to point to chars to + * copy into the string rep. objPtr->length = numBytes. Allocate + * array of (numBytes + 1) chars. store in objPtr->bytes. Copy + * numBytes chars from bytes to objPtr->bytes; Set + * objPtr->bytes[numBytes] to NUL and return objPtr->bytes. + * Caller must guarantee there are numBytes chars at bytes to + * be copied. + * + * objPtr->bytes != NULL && bytes == NULL && numBytes >= 0 + * Truncate. Set objPtr->length to numBytes and + * objPr->bytes[numBytes] to NUL. Caller has to guarantee + * that a prior allocating call allocated enough bytes for + * this to be valid. Return objPtr->bytes. + * + * Caller is expected to ascertain that the bytes copied into + * the string rep make up complete valid UTF-8 characters. + * + * Results: + * A pointer to the string rep of objPtr. + * + * Side effects: + * As described above. + * + *---------------------------------------------------------------------- + */ + +char * +Tcl_InitStringRep( + Tcl_Obj *objPtr, /* Object whose string rep is to be set */ + const char *bytes, + unsigned int numBytes) +{ + assert(objPtr->bytes == NULL || bytes == NULL); + + if (numBytes > INT_MAX) { + Tcl_Panic("max size for a Tcl value (%d bytes) exceeded", INT_MAX); + } + + /* Allocate */ + if (objPtr->bytes == NULL) { + /* Allocate only as empty - extend later if bytes copied */ + objPtr->length = 0; + if (numBytes) { + objPtr->bytes = attemptckalloc(numBytes + 1); + if (objPtr->bytes == NULL) { + return NULL; + } + if (bytes) { + /* Copy */ + memcpy(objPtr->bytes, bytes, numBytes); + objPtr->length = (int) numBytes; + } + } else { + TclInitStringRep(objPtr, NULL, 0); + } + } else { + /* objPtr->bytes != NULL bytes == NULL - Truncate */ + objPtr->bytes = ckrealloc(objPtr->bytes, numBytes + 1); + objPtr->length = (int)numBytes; + } + + /* Terminate */ + objPtr->bytes[objPtr->length] = '\0'; + + return objPtr->bytes; +} + +/* + *---------------------------------------------------------------------- + * * Tcl_InvalidateStringRep -- * * This function is called to invalidate an object's string @@ -1724,6 +1808,123 @@ Tcl_InvalidateStringRep( /* *---------------------------------------------------------------------- * + * Tcl_HasStringRep -- + * + * This function reports whether object has a string representation. + * + * Results: + * Boolean. + *---------------------------------------------------------------------- + */ + +int +Tcl_HasStringRep( + Tcl_Obj *objPtr) /* Object to test */ +{ + return TclHasStringRep(objPtr); +} + +/* + *---------------------------------------------------------------------- + * + * Tcl_StoreIntRep -- + * + * This function is called to set the object's internal + * representation to match a particular type. + * + * It is the caller's responsibility to guarantee that + * the value of the submitted IntRep is in agreement with + * the value of any existing string rep. + * + * Results: + * None. + * + * Side effects: + * Calls the freeIntRepProc of the current Tcl_ObjType, if any. + * Sets the internalRep and typePtr fields to the submitted values. + * + *---------------------------------------------------------------------- + */ + +void +Tcl_StoreIntRep( + Tcl_Obj *objPtr, /* Object whose internal rep should be set. */ + const Tcl_ObjType *typePtr, /* New type for the object */ + const Tcl_ObjIntRep *irPtr) /* New IntRep for the object */ +{ + /* Clear out any existing IntRep ( "shimmer" ) */ + TclFreeIntRep(objPtr); + + /* When irPtr == NULL, just leave objPtr with no IntRep for typePtr */ + if (irPtr) { + /* Copy the new IntRep into place */ + objPtr->internalRep = *irPtr; + + /* Set the type to match */ + objPtr->typePtr = typePtr; + } +} + +/* + *---------------------------------------------------------------------- + * + * Tcl_FetchIntRep -- + * + * This function is called to retrieve the object's internal + * representation matching a requested type, if any. + * + * Results: + * A read-only pointer to the associated Tcl_ObjIntRep, or + * NULL if no such internal representation exists. + * + * Side effects: + * Calls the freeIntRepProc of the current Tcl_ObjType, if any. + * Sets the internalRep and typePtr fields to the submitted values. + * + *---------------------------------------------------------------------- + */ + +Tcl_ObjIntRep * +Tcl_FetchIntRep( + Tcl_Obj *objPtr, /* Object to fetch from. */ + const Tcl_ObjType *typePtr) /* Requested type */ +{ + /* If objPtr type doesn't match request, nothing can be fetched */ + if (objPtr->typePtr != typePtr) { + return NULL; + } + + /* Type match! objPtr IntRep is the one sought. */ + return &(objPtr->internalRep); +} + +/* + *---------------------------------------------------------------------- + * + * Tcl_FreeIntRep -- + * + * This function is called to free an object's internal representation. + * + * Results: + * None. + * + * Side effects: + * Calls the freeIntRepProc of the current Tcl_ObjType, if any. + * Sets typePtr field to NULL. + * + *---------------------------------------------------------------------- + */ + +void +Tcl_FreeIntRep( + Tcl_Obj *objPtr) /* Object whose internal rep should be freed. */ +{ + TclFreeIntRep(objPtr); +} + +/* + *---------------------------------------------------------------------- + * * Tcl_NewBooleanObj -- * * This function is normally called when not debugging: i.e., when @@ -1808,6 +2009,7 @@ Tcl_DbNewBooleanObj( register Tcl_Obj *objPtr; TclDbNewObj(objPtr, file, line); + /* Optimized TclInvalidateStringRep() */ objPtr->bytes = NULL; objPtr->internalRep.longValue = (boolValue != 0); @@ -2202,6 +2404,7 @@ Tcl_DbNewDoubleObj( register Tcl_Obj *objPtr; TclDbNewObj(objPtr, file, line); + /* Optimized TclInvalidateStringRep() */ objPtr->bytes = NULL; objPtr->internalRep.doubleValue = dblValue; @@ -2368,15 +2571,12 @@ static void UpdateStringOfDouble( register Tcl_Obj *objPtr) /* Double obj with string rep to update. */ { - char buffer[TCL_DOUBLE_SPACE]; - register int len; + char *dst = Tcl_InitStringRep(objPtr, NULL, TCL_DOUBLE_SPACE); - Tcl_PrintDouble(NULL, objPtr->internalRep.doubleValue, buffer); - len = strlen(buffer); + TclOOM(dst, TCL_DOUBLE_SPACE + 1); - objPtr->bytes = ckalloc(len + 1); - memcpy(objPtr->bytes, buffer, (unsigned) len + 1); - objPtr->length = len; + Tcl_PrintDouble(NULL, objPtr->internalRep.doubleValue, dst); + (void) Tcl_InitStringRep(objPtr, NULL, strlen(dst)); } /* @@ -2566,14 +2766,11 @@ static void UpdateStringOfInt( register Tcl_Obj *objPtr) /* Int object whose string rep to update. */ { - char buffer[TCL_INTEGER_SPACE]; - register int len; - - len = TclFormatInt(buffer, objPtr->internalRep.longValue); + char *dst = Tcl_InitStringRep( objPtr, NULL, TCL_INTEGER_SPACE); - objPtr->bytes = ckalloc(len + 1); - memcpy(objPtr->bytes, buffer, (unsigned) len + 1); - objPtr->length = len; + TclOOM(dst, TCL_INTEGER_SPACE + 1); + (void) Tcl_InitStringRep(objPtr, NULL, + TclFormatInt(dst, objPtr->internalRep.longValue)); } /* @@ -2677,6 +2874,7 @@ Tcl_DbNewLongObj( register Tcl_Obj *objPtr; TclDbNewObj(objPtr, file, line); + /* Optimized TclInvalidateStringRep */ objPtr->bytes = NULL; objPtr->internalRep.longValue = longValue; @@ -2861,9 +3059,9 @@ static void UpdateStringOfWideInt( register Tcl_Obj *objPtr) /* Int object whose string rep to update. */ { - char buffer[TCL_INTEGER_SPACE+2]; - register unsigned len; - register Tcl_WideInt wideVal = objPtr->internalRep.wideValue; + char *dst = Tcl_InitStringRep(objPtr, NULL, TCL_INTEGER_SPACE + 2); + + TclOOM(dst, TCL_INTEGER_SPACE + 3); /* * Note that sprintf will generate a compiler warning under Mingw claiming @@ -2872,11 +3070,9 @@ UpdateStringOfWideInt( * value. */ - sprintf(buffer, "%" TCL_LL_MODIFIER "d", wideVal); - len = strlen(buffer); - objPtr->bytes = ckalloc(len + 1); - memcpy(objPtr->bytes, buffer, len + 1); - objPtr->length = len; + sprintf(dst, "%" TCL_LL_MODIFIER "d", objPtr->internalRep.wideValue); + + (void) Tcl_InitStringRep(objPtr, NULL, strlen(dst)); } #endif /* !TCL_WIDE_INT_IS_LONG */ @@ -3246,12 +3442,10 @@ UpdateStringOfBignum( { mp_int bignumVal; int size; - int status; char *stringVal; UNPACK_BIGNUM(objPtr, bignumVal); - status = mp_radix_size(&bignumVal, 10, &size); - if (status != MP_OKAY) { + if (MP_OKAY != mp_radix_size(&bignumVal, 10, &size)) { Tcl_Panic("radix size failure in UpdateStringOfBignum"); } if (size < 2) { @@ -3266,13 +3460,14 @@ UpdateStringOfBignum( Tcl_Panic("UpdateStringOfBignum: string length limit exceeded"); } - stringVal = ckalloc(size); - status = mp_toradix_n(&bignumVal, stringVal, 10, size); - if (status != MP_OKAY) { + + stringVal = Tcl_InitStringRep(objPtr, NULL, size - 1); + + TclOOM(stringVal, size); + if (MP_OKAY != mp_toradix_n(&bignumVal, stringVal, 10, size)) { Tcl_Panic("conversion failure in UpdateStringOfBignum"); } - objPtr->bytes = stringVal; - objPtr->length = size - 1; /* size includes a trailing NUL byte. */ + (void) Tcl_InitStringRep(objPtr, NULL, size - 1); } /* @@ -3392,11 +3587,17 @@ GetBignumFromObj( mp_init_copy(bignumValue, &temp); } else { UNPACK_BIGNUM(objPtr, *bignumValue); + /* Optimized TclFreeIntRep */ objPtr->internalRep.twoPtrValue.ptr1 = NULL; objPtr->internalRep.twoPtrValue.ptr2 = NULL; objPtr->typePtr = NULL; + /* + * TODO: If objPtr has a string rep, this leaves + * it undisturbed. Not clear that's proper. Pure + * bignum values are converted to empty string. + */ if (objPtr->bytes == NULL) { - TclInitStringRep(objPtr, &tclEmptyString, 0); + TclInitStringRep(objPtr, NULL, 0); } } return TCL_OK; diff --git a/generic/tclPathObj.c b/generic/tclPathObj.c index 49d62dc..4e10087 100644 --- a/generic/tclPathObj.c +++ b/generic/tclPathObj.c @@ -36,7 +36,7 @@ static int MakePathFromNormalized(Tcl_Interp *interp, * internally. */ -static const Tcl_ObjType tclFsPathType = { +static const Tcl_ObjType fsPathType = { "path", /* name */ FreeFsPathInternalRep, /* freeIntRepProc */ DupFsPathInternalRep, /* dupIntRepProc */ @@ -564,7 +564,7 @@ TclPathPart( Tcl_Obj *pathPtr, /* Path to take dirname of */ Tcl_PathPart portion) /* Requested portion of name */ { - if (pathPtr->typePtr == &tclFsPathType) { + if (pathPtr->typePtr == &fsPathType) { FsPath *fsPathPtr = PATHOBJ(pathPtr); if (PATHFLAGS(pathPtr) != 0) { @@ -877,7 +877,7 @@ TclJoinPath( * to be an absolute path. Added a check for that elt is absolute. */ - if ((elt->typePtr == &tclFsPathType) + if ((elt->typePtr == &fsPathType) && !((elt->bytes != NULL) && (elt->bytes[0] == '\0')) && TclGetPathType(elt, NULL, NULL, NULL) == TCL_PATH_ABSOLUTE) { Tcl_Obj *tailObj = objv[1]; @@ -1164,7 +1164,7 @@ Tcl_FSConvertToPathType( * path. */ - if (pathPtr->typePtr == &tclFsPathType) { + if (pathPtr->typePtr == &fsPathType) { if (TclFSEpochOk(PATHOBJ(pathPtr)->filesystemEpoch)) { return TCL_OK; } @@ -1191,7 +1191,7 @@ Tcl_FSConvertToPathType( * UpdateStringOfFsPath(pathPtr); * } * FreeFsPathInternalRep(pathPtr); - * return Tcl_ConvertToType(interp, pathPtr, &tclFsPathType); + * return Tcl_ConvertToType(interp, pathPtr, &fsPathType); * } * } * @@ -1328,7 +1328,7 @@ TclNewFSPathObj( SETPATHOBJ(pathPtr, fsPathPtr); PATHFLAGS(pathPtr) = TCLPATH_APPENDED; - pathPtr->typePtr = &tclFsPathType; + pathPtr->typePtr = &fsPathType; pathPtr->bytes = NULL; pathPtr->length = 0; @@ -1431,7 +1431,7 @@ TclFSMakePathRelative( int cwdLen, len; const char *tempStr; - if (pathPtr->typePtr == &tclFsPathType) { + if (pathPtr->typePtr == &fsPathType) { FsPath *fsPathPtr = PATHOBJ(pathPtr); if (PATHFLAGS(pathPtr) != 0 && fsPathPtr->cwdPtr == cwdPtr) { @@ -1499,7 +1499,7 @@ MakePathFromNormalized( { FsPath *fsPathPtr; - if (pathPtr->typePtr == &tclFsPathType) { + if (pathPtr->typePtr == &fsPathType) { return TCL_OK; } @@ -1544,7 +1544,7 @@ MakePathFromNormalized( SETPATHOBJ(pathPtr, fsPathPtr); PATHFLAGS(pathPtr) = 0; - pathPtr->typePtr = &tclFsPathType; + pathPtr->typePtr = &fsPathType; return TCL_OK; } @@ -1621,7 +1621,7 @@ Tcl_FSNewNativePath( SETPATHOBJ(pathPtr, fsPathPtr); PATHFLAGS(pathPtr) = 0; - pathPtr->typePtr = &tclFsPathType; + pathPtr->typePtr = &fsPathType; return pathPtr; } @@ -1675,7 +1675,7 @@ Tcl_FSGetTranslatedPath( retObj = Tcl_FSJoinToPath(translatedCwdPtr, 1, &srcFsPathPtr->normPathPtr); srcFsPathPtr->translatedPathPtr = retObj; - if (translatedCwdPtr->typePtr == &tclFsPathType) { + if (translatedCwdPtr->typePtr == &fsPathType) { srcFsPathPtr->filesystemEpoch = PATHOBJ(translatedCwdPtr)->filesystemEpoch; } else { @@ -1846,7 +1846,7 @@ Tcl_FSGetNormalizedPath( /* * NOTE: here we are (dangerously?) assuming that origDir points - * to a Tcl_Obj with Tcl_ObjType == &tclFsPathType. The + * to a Tcl_Obj with Tcl_ObjType == &fsPathType. The * pathType = Tcl_FSGetPathType(fsPathPtr->cwdPtr); * above that set the pathType value should have established that, * but it's far less clear on what basis we know there's been no @@ -2171,7 +2171,7 @@ TclFSEnsureEpochOk( { FsPath *srcFsPathPtr; - if (pathPtr->typePtr != &tclFsPathType) { + if (pathPtr->typePtr != &fsPathType) { return TCL_OK; } @@ -2235,7 +2235,7 @@ TclFSSetPathDetails( * Make sure pathPtr is of the correct type. */ - if (pathPtr->typePtr != &tclFsPathType) { + if (pathPtr->typePtr != &fsPathType) { if (SetFsPathFromAny(NULL, pathPtr) != TCL_OK) { return; } @@ -2334,7 +2334,7 @@ SetFsPathFromAny( Tcl_Obj *transPtr; char *name; - if (pathPtr->typePtr == &tclFsPathType) { + if (pathPtr->typePtr == &fsPathType) { return TCL_OK; } @@ -2496,7 +2496,7 @@ SetFsPathFromAny( TclFreeIntRep(pathPtr); SETPATHOBJ(pathPtr, fsPathPtr); PATHFLAGS(pathPtr) = 0; - pathPtr->typePtr = &tclFsPathType; + pathPtr->typePtr = &fsPathType; return TCL_OK; } @@ -2588,7 +2588,7 @@ DupFsPathInternalRep( copyFsPathPtr->fsPtr = srcFsPathPtr->fsPtr; copyFsPathPtr->filesystemEpoch = srcFsPathPtr->filesystemEpoch; - copyPtr->typePtr = &tclFsPathType; + copyPtr->typePtr = &fsPathType; } /* @@ -2623,8 +2623,7 @@ UpdateStringOfFsPath( pathPtr->bytes = TclGetStringFromObj(copy, &cwdLen); pathPtr->length = cwdLen; - copy->bytes = &tclEmptyString; - copy->length = 0; + TclInitStringRep(copy, NULL, 0); TclDecrRefCount(copy); } @@ -2661,7 +2660,7 @@ TclNativePathInFilesystem( * semantics of Tcl (at present anyway), so we have to abide by them here. */ - if (pathPtr->typePtr == &tclFsPathType) { + if (pathPtr->typePtr == &fsPathType) { if (pathPtr->bytes != NULL && pathPtr->bytes[0] == '\0') { /* * We reject the empty path "". @@ -2676,7 +2675,7 @@ TclNativePathInFilesystem( } else { /* * It is somewhat unusual to reach this code path without the object - * being of tclFsPathType. However, we do our best to deal with the + * being of fsPathType. However, we do our best to deal with the * situation. */ diff --git a/generic/tclProc.c b/generic/tclProc.c index 96bdcf3..1679a09 100644 --- a/generic/tclProc.c +++ b/generic/tclProc.c @@ -15,6 +15,7 @@ #include "tclInt.h" #include "tclCompile.h" +#include <assert.h> /* * Variables that are part of the [apply] command implementation and which @@ -67,6 +68,22 @@ const Tcl_ObjType tclProcBodyType = { * should panic instead. */ }; +#define ProcSetIntRep(objPtr, procPtr) \ + do { \ + Tcl_ObjIntRep ir; \ + (procPtr)->refCount++; \ + ir.twoPtrValue.ptr1 = (procPtr); \ + ir.twoPtrValue.ptr2 = NULL; \ + Tcl_StoreIntRep((objPtr), &tclProcBodyType, &ir); \ + } while (0) + +#define ProcGetIntRep(objPtr, procPtr) \ + do { \ + const Tcl_ObjIntRep *irPtr; \ + irPtr = Tcl_FetchIntRep((objPtr), &tclProcBodyType); \ + (procPtr) = irPtr ? irPtr->twoPtrValue.ptr1 : NULL; \ + } while (0) + /* * The [upvar]/[uplevel] level reference type. Uses the longValue field * to remember the integer value of a parsed #<integer> format. @@ -89,13 +106,31 @@ static const Tcl_ObjType levelReferenceType = { * will execute within. IF YOU CHANGE THIS, CHECK IN tclDisassemble.c TOO. */ -const Tcl_ObjType tclLambdaType = { +static const Tcl_ObjType lambdaType = { "lambdaExpr", /* name */ FreeLambdaInternalRep, /* freeIntRepProc */ DupLambdaInternalRep, /* dupIntRepProc */ NULL, /* updateStringProc */ SetLambdaFromAny /* setFromAnyProc */ }; + +#define LambdaSetIntRep(objPtr, procPtr, nsObjPtr) \ + do { \ + Tcl_ObjIntRep ir; \ + ir.twoPtrValue.ptr1 = (procPtr); \ + ir.twoPtrValue.ptr2 = (nsObjPtr); \ + Tcl_IncrRefCount((nsObjPtr)); \ + Tcl_StoreIntRep((objPtr), &lambdaType, &ir); \ + } while (0) + +#define LambdaGetIntRep(objPtr, procPtr, nsObjPtr) \ + do { \ + const Tcl_ObjIntRep *irPtr; \ + irPtr = Tcl_FetchIntRep((objPtr), &lambdaType); \ + (procPtr) = irPtr ? irPtr->twoPtrValue.ptr1 : NULL; \ + (nsObjPtr) = irPtr ? irPtr->twoPtrValue.ptr2 : NULL; \ + } while (0) + /* *---------------------------------------------------------------------- @@ -318,7 +353,7 @@ Tcl_ProcObjCmd( * of all procs whose argument list is just _args_ */ - if (objv[3]->typePtr == &tclProcBodyType) { + if (Tcl_FetchIntRep(objv[3], &tclProcBodyType)) { goto done; } @@ -395,14 +430,15 @@ TclCreateProc( Interp *iPtr = (Interp *) interp; const char **argArray = NULL; - register Proc *procPtr; + register Proc *procPtr = NULL; int i, length, result, numArgs; const char *args, *bytes, *p; register CompiledLocal *localPtr = NULL; Tcl_Obj *defPtr; int precompiled = 0; - if (bodyPtr->typePtr == &tclProcBodyType) { + ProcGetIntRep(bodyPtr, procPtr); + if (procPtr != NULL) { /* * Because the body is a TclProProcBody, the actual body is already * compiled, and it is not shared with anyone else, so it's OK not to @@ -415,7 +451,6 @@ TclCreateProc( * will be holding a reference to it. */ - procPtr = bodyPtr->internalRep.twoPtrValue.ptr1; procPtr->iPtr = iPtr; procPtr->refCount++; precompiled = 1; @@ -805,6 +840,7 @@ TclObjGetFrame( { register Interp *iPtr = (Interp *) interp; int curLevel, level, result; + const Tcl_ObjIntRep *irPtr; const char *name = NULL; /* @@ -825,16 +861,17 @@ TclObjGetFrame( && (level >= 0)) { level = curLevel - level; result = 1; - } else if (objPtr->typePtr == &levelReferenceType) { - level = (int) objPtr->internalRep.longValue; + } else if ((irPtr = Tcl_FetchIntRep(objPtr, &levelReferenceType))) { + level = irPtr->longValue; result = 1; } else { name = TclGetString(objPtr); if (name[0] == '#') { if (TCL_OK == Tcl_GetInt(NULL, name+1, &level) && level >= 0) { - TclFreeIntRep(objPtr); - objPtr->typePtr = &levelReferenceType; - objPtr->internalRep.longValue = level; + Tcl_ObjIntRep ir; + + ir.longValue = level; + Tcl_StoreIntRep(objPtr, &levelReferenceType, &ir); result = 1; } else { result = -1; @@ -1156,10 +1193,10 @@ TclInitCompiledLocals( ByteCode *codePtr; bodyPtr = framePtr->procPtr->bodyPtr; - if (bodyPtr->typePtr != &tclByteCodeType) { + ByteCodeGetIntRep(bodyPtr, &tclByteCodeType, codePtr); + if (codePtr == NULL) { Tcl_Panic("body object for proc attached to frame is not a byte code type"); } - codePtr = bodyPtr->internalRep.twoPtrValue.ptr1; if (framePtr->numCompiledLocals) { if (!codePtr->localCachePtr) { @@ -1322,7 +1359,7 @@ InitLocalCache( Proc *procPtr) { Interp *iPtr = procPtr->iPtr; - ByteCode *codePtr = procPtr->bodyPtr->internalRep.twoPtrValue.ptr1; + ByteCode *codePtr; int localCt = procPtr->numCompiledLocals; int numArgs = procPtr->numArgs, i = 0; @@ -1332,6 +1369,8 @@ InitLocalCache( CompiledLocal *localPtr; int new; + ByteCodeGetIntRep(procPtr->bodyPtr, &tclByteCodeType, codePtr); + /* * Cache the names and initial values of local variables; store the * cache in both the framePtr for this execution and in the codePtr @@ -1399,11 +1438,13 @@ InitArgsAndLocals( { CallFrame *framePtr = ((Interp *)interp)->varFramePtr; register Proc *procPtr = framePtr->procPtr; - ByteCode *codePtr = procPtr->bodyPtr->internalRep.twoPtrValue.ptr1; + ByteCode *codePtr; register Var *varPtr, *defPtr; int localCt = procPtr->numCompiledLocals, numArgs, argCt, i, imax; Tcl_Obj *const *argObjs; + ByteCodeGetIntRep(procPtr->bodyPtr, &tclByteCodeType, codePtr); + /* * Make sure that the local cache of variable names and initial values has * been initialised properly . @@ -1578,7 +1619,8 @@ TclPushProcCallFrame( * local variables are found while compiling. */ - if (procPtr->bodyPtr->typePtr == &tclByteCodeType) { + ByteCodeGetIntRep(procPtr->bodyPtr, &tclByteCodeType, codePtr); + if (codePtr != NULL) { Interp *iPtr = (Interp *) interp; /* @@ -1590,7 +1632,6 @@ TclPushProcCallFrame( * commands and/or resolver changes are considered). */ - codePtr = procPtr->bodyPtr->internalRep.twoPtrValue.ptr1; if (((Interp *) *codePtr->interpHandle != iPtr) || (codePtr->compileEpoch != iPtr->compileEpoch) || (codePtr->nsPtr != nsPtr) @@ -1788,7 +1829,7 @@ TclNRInterpProcCore( */ procPtr->refCount++; - codePtr = procPtr->bodyPtr->internalRep.twoPtrValue.ptr1; + ByteCodeGetIntRep(procPtr->bodyPtr, &tclByteCodeType, codePtr); TclNRAddCallback(interp, InterpProcNR2, procNameObj, errorProc, NULL, NULL); @@ -1922,7 +1963,9 @@ TclProcCompileProc( { Interp *iPtr = (Interp *) interp; Tcl_CallFrame *framePtr; - ByteCode *codePtr = bodyPtr->internalRep.twoPtrValue.ptr1; + ByteCode *codePtr; + + ByteCodeGetIntRep(bodyPtr, &tclByteCodeType, codePtr); /* * If necessary, compile the procedure's body. The compiler will allocate @@ -1938,7 +1981,7 @@ TclProcCompileProc( * are not recompiled, even if things have changed. */ - if (bodyPtr->typePtr == &tclByteCodeType) { + if (codePtr != NULL) { if (((Interp *) *codePtr->interpHandle == iPtr) && (codePtr->compileEpoch == iPtr->compileEpoch) && (codePtr->nsPtr == nsPtr) @@ -1957,11 +2000,12 @@ TclProcCompileProc( codePtr->compileEpoch = iPtr->compileEpoch; codePtr->nsPtr = nsPtr; } else { - TclFreeIntRep(bodyPtr); + Tcl_StoreIntRep(bodyPtr, &tclByteCodeType, NULL); + codePtr = NULL; } } - if (bodyPtr->typePtr != &tclByteCodeType) { + if (codePtr == NULL) { Tcl_HashEntry *hePtr; #ifdef TCL_COMPILE_DEBUG @@ -2310,10 +2354,7 @@ TclNewProcBodyObj( TclNewObj(objPtr); if (objPtr) { - objPtr->typePtr = &tclProcBodyType; - objPtr->internalRep.twoPtrValue.ptr1 = procPtr; - - procPtr->refCount++; + ProcSetIntRep(objPtr, procPtr); } return objPtr; @@ -2341,11 +2382,10 @@ ProcBodyDup( Tcl_Obj *srcPtr, /* Object to copy. */ Tcl_Obj *dupPtr) /* Target object for the duplication. */ { - Proc *procPtr = srcPtr->internalRep.twoPtrValue.ptr1; + Proc *procPtr; + ProcGetIntRep(srcPtr, procPtr); - dupPtr->typePtr = &tclProcBodyType; - dupPtr->internalRep.twoPtrValue.ptr1 = procPtr; - procPtr->refCount++; + ProcSetIntRep(dupPtr, procPtr); } /* @@ -2371,7 +2411,9 @@ static void ProcBodyFree( Tcl_Obj *objPtr) /* The object to clean up. */ { - Proc *procPtr = objPtr->internalRep.twoPtrValue.ptr1; + Proc *procPtr; + + ProcGetIntRep(objPtr, procPtr); if (procPtr->refCount-- <= 1) { TclProcCleanupProc(procPtr); @@ -2397,15 +2439,15 @@ DupLambdaInternalRep( Tcl_Obj *srcPtr, /* Object with internal rep to copy. */ register Tcl_Obj *copyPtr) /* Object with internal rep to set. */ { - Proc *procPtr = srcPtr->internalRep.twoPtrValue.ptr1; - Tcl_Obj *nsObjPtr = srcPtr->internalRep.twoPtrValue.ptr2; + Proc *procPtr; + Tcl_Obj *nsObjPtr; - copyPtr->internalRep.twoPtrValue.ptr1 = procPtr; - copyPtr->internalRep.twoPtrValue.ptr2 = nsObjPtr; + LambdaGetIntRep(srcPtr, procPtr, nsObjPtr); + assert(procPtr != NULL); procPtr->refCount++; - Tcl_IncrRefCount(nsObjPtr); - copyPtr->typePtr = &tclLambdaType; + + LambdaSetIntRep(copyPtr, procPtr, nsObjPtr); } static void @@ -2413,14 +2455,16 @@ FreeLambdaInternalRep( register Tcl_Obj *objPtr) /* CmdName object with internal representation * to free. */ { - Proc *procPtr = objPtr->internalRep.twoPtrValue.ptr1; - Tcl_Obj *nsObjPtr = objPtr->internalRep.twoPtrValue.ptr2; + Proc *procPtr; + Tcl_Obj *nsObjPtr; + + LambdaGetIntRep(objPtr, procPtr, nsObjPtr); + assert(procPtr != NULL); if (procPtr->refCount-- == 1) { TclProcCleanupProc(procPtr); } TclDecrRefCount(nsObjPtr); - objPtr->typePtr = NULL; } static int @@ -2441,7 +2485,7 @@ SetLambdaFromAny( /* * Convert objPtr to list type first; if it cannot be converted, or if its - * length is not 2, then it cannot be converted to tclLambdaType. + * length is not 2, then it cannot be converted to lambdaType. */ result = TclListObjGetElements(NULL, objPtr, &objc, &objv); @@ -2582,21 +2626,42 @@ SetLambdaFromAny( } } - Tcl_IncrRefCount(nsObjPtr); - /* * Free the list internalrep of objPtr - this will free argsPtr, but * bodyPtr retains a reference from the Proc structure. Then finish the - * conversion to tclLambdaType. + * conversion to lambdaType. */ - TclFreeIntRep(objPtr); - - objPtr->internalRep.twoPtrValue.ptr1 = procPtr; - objPtr->internalRep.twoPtrValue.ptr2 = nsObjPtr; - objPtr->typePtr = &tclLambdaType; + LambdaSetIntRep(objPtr, procPtr, nsObjPtr); return TCL_OK; } + +Proc * +TclGetLambdaFromObj( + Tcl_Interp *interp, + Tcl_Obj *objPtr, + Tcl_Obj **nsObjPtrPtr) +{ + Proc *procPtr; + Tcl_Obj *nsObjPtr; + + LambdaGetIntRep(objPtr, procPtr, nsObjPtr); + + if (procPtr == NULL) { + if (SetLambdaFromAny(interp, objPtr) != TCL_OK) { + return NULL; + } + LambdaGetIntRep(objPtr, procPtr, nsObjPtr); + } + + assert(procPtr != NULL); + if (procPtr->iPtr != (Interp *)interp) { + return NULL; + } + + *nsObjPtrPtr = nsObjPtr; + return procPtr; +} /* *---------------------------------------------------------------------- @@ -2632,7 +2697,6 @@ TclNRApplyObjCmd( int objc, /* Number of arguments. */ Tcl_Obj *const objv[]) /* Argument objects. */ { - Interp *iPtr = (Interp *) interp; Proc *procPtr = NULL; Tcl_Obj *lambdaPtr, *nsObjPtr; int result; @@ -2650,24 +2714,17 @@ TclNRApplyObjCmd( */ lambdaPtr = objv[1]; - if (lambdaPtr->typePtr == &tclLambdaType) { - procPtr = lambdaPtr->internalRep.twoPtrValue.ptr1; - } + procPtr = TclGetLambdaFromObj(interp, lambdaPtr, &nsObjPtr); - if ((procPtr == NULL) || (procPtr->iPtr != iPtr)) { - result = SetLambdaFromAny(interp, lambdaPtr); - if (result != TCL_OK) { - return result; - } - procPtr = lambdaPtr->internalRep.twoPtrValue.ptr1; + if (procPtr == NULL) { + return TCL_ERROR; } /* - * Find the namespace where this lambda should run, and push a call frame - * for that namespace. Note that TclObjInterpProc() will pop it. + * Push a call frame for the lambda namespace. + * Note that TclObjInterpProc() will pop it. */ - nsObjPtr = lambdaPtr->internalRep.twoPtrValue.ptr2; result = TclGetNamespaceFromObj(interp, nsObjPtr, &nsPtr); if (result != TCL_OK) { return TCL_ERROR; diff --git a/generic/tclRegexp.c b/generic/tclRegexp.c index 5f8dc20..a01ace3 100644 --- a/generic/tclRegexp.c +++ b/generic/tclRegexp.c @@ -13,6 +13,7 @@ #include "tclInt.h" #include "tclRegexp.h" +#include <assert.h> /* *---------------------------------------------------------------------- @@ -107,6 +108,23 @@ const Tcl_ObjType tclRegexpType = { NULL, /* updateStringProc */ SetRegexpFromAny /* setFromAnyProc */ }; + +#define RegexpSetIntRep(objPtr, rePtr) \ + do { \ + Tcl_ObjIntRep ir; \ + (rePtr)->refCount++; \ + ir.twoPtrValue.ptr1 = (rePtr); \ + ir.twoPtrValue.ptr2 = NULL; \ + Tcl_StoreIntRep((objPtr), &tclRegexpType, &ir); \ + } while (0) + +#define RegexpGetIntRep(objPtr, rePtr) \ + do { \ + const Tcl_ObjIntRep *irPtr; \ + irPtr = Tcl_FetchIntRep((objPtr), &tclRegexpType); \ + (rePtr) = irPtr ? irPtr->twoPtrValue.ptr1 : NULL; \ + } while (0) + /* *---------------------------------------------------------------------- @@ -580,14 +598,9 @@ Tcl_GetRegExpFromObj( TclRegexp *regexpPtr; const char *pattern; - /* - * This is OK because we only actually interpret this value properly as a - * TclRegexp* when the type is tclRegexpType. - */ - - regexpPtr = objPtr->internalRep.twoPtrValue.ptr1; + RegexpGetIntRep(objPtr, regexpPtr); - if ((objPtr->typePtr != &tclRegexpType) || (regexpPtr->flags != flags)) { + if ((regexpPtr == NULL) || (regexpPtr->flags != flags)) { pattern = TclGetStringFromObj(objPtr, &length); regexpPtr = CompileRegexp(interp, pattern, length, flags); @@ -595,21 +608,7 @@ Tcl_GetRegExpFromObj( return NULL; } - /* - * Add a reference to the regexp so it will persist even if it is - * pushed out of the current thread's regexp cache. This reference - * will be removed when the object's internal rep is freed. - */ - - regexpPtr->refCount++; - - /* - * Free the old representation and set our type. - */ - - TclFreeIntRep(objPtr); - objPtr->internalRep.twoPtrValue.ptr1 = regexpPtr; - objPtr->typePtr = &tclRegexpType; + RegexpSetIntRep(objPtr, regexpPtr); } return (Tcl_RegExp) regexpPtr; } @@ -756,7 +755,11 @@ static void FreeRegexpInternalRep( Tcl_Obj *objPtr) /* Regexp object with internal rep to free. */ { - TclRegexp *regexpRepPtr = objPtr->internalRep.twoPtrValue.ptr1; + TclRegexp *regexpRepPtr; + + RegexpGetIntRep(objPtr, regexpRepPtr); + + assert(regexpRepPtr != NULL); /* * If this is the last reference to the regexp, free it. @@ -765,7 +768,6 @@ FreeRegexpInternalRep( if (regexpRepPtr->refCount-- <= 1) { FreeRegexp(regexpRepPtr); } - objPtr->typePtr = NULL; } /* @@ -790,11 +792,13 @@ DupRegexpInternalRep( Tcl_Obj *srcPtr, /* Object with internal rep to copy. */ Tcl_Obj *copyPtr) /* Object with internal rep to set. */ { - TclRegexp *regexpPtr = srcPtr->internalRep.twoPtrValue.ptr1; + TclRegexp *regexpPtr; + + RegexpGetIntRep(srcPtr, regexpPtr); + + assert(regexpPtr != NULL); - regexpPtr->refCount++; - copyPtr->internalRep.twoPtrValue.ptr1 = srcPtr->internalRep.twoPtrValue.ptr1; - copyPtr->typePtr = &tclRegexpType; + RegexpSetIntRep(copyPtr, regexpPtr); } /* diff --git a/generic/tclScan.c b/generic/tclScan.c index e1fcad4..56663d8 100644 --- a/generic/tclScan.c +++ b/generic/tclScan.c @@ -984,8 +984,10 @@ Tcl_ScanObjCmd( double dvalue; if (Tcl_GetDoubleFromObj(NULL, objPtr, &dvalue) != TCL_OK) { #ifdef ACCEPT_NAN - if (objPtr->typePtr == &tclDoubleType) { - dvalue = objPtr->internalRep.doubleValue; + const Tcl_ObjIntRep *irPtr + = Tcl_FetchIntRep(objPtr, &tclDoubleType); + if (irPtr) { + dvalue = irPtr->doubleValue; } else #endif { diff --git a/generic/tclStringObj.c b/generic/tclStringObj.c index 59758bb..61ab089 100644 --- a/generic/tclStringObj.c +++ b/generic/tclStringObj.c @@ -3744,7 +3744,7 @@ UpdateStringOfString( stringPtr->allocated = 0; if (stringPtr->numChars == 0) { - TclInitStringRep(objPtr, &tclEmptyString, 0); + TclInitStringRep(objPtr, NULL, 0); } else { (void) ExtendStringRepWithUnicode(objPtr, stringPtr->unicode, stringPtr->numChars); diff --git a/generic/tclStubInit.c b/generic/tclStubInit.c index ebd2086..56b9355 100644 --- a/generic/tclStubInit.c +++ b/generic/tclStubInit.c @@ -1536,6 +1536,11 @@ const TclStubs tclStubs = { Tcl_FSUnloadFile, /* 629 */ Tcl_ZlibStreamSetCompressionDictionary, /* 630 */ Tcl_OpenTcpServerEx, /* 631 */ + Tcl_FreeIntRep, /* 632 */ + Tcl_InitStringRep, /* 633 */ + Tcl_FetchIntRep, /* 634 */ + Tcl_StoreIntRep, /* 635 */ + Tcl_HasStringRep, /* 636 */ }; /* !END!: Do not edit above this line. */ diff --git a/generic/tclTest.c b/generic/tclTest.c index ebd90ae..47c572f 100644 --- a/generic/tclTest.c +++ b/generic/tclTest.c @@ -7128,17 +7128,11 @@ TestconcatobjCmd( list1Ptr = Tcl_NewStringObj("foo bar sum", -1); Tcl_ListObjLength(NULL, list1Ptr, &len); - if (list1Ptr->bytes != NULL) { - ckfree(list1Ptr->bytes); - list1Ptr->bytes = NULL; - } + Tcl_InvalidateStringRep(list1Ptr); list2Ptr = Tcl_NewStringObj("eeny meeny", -1); Tcl_ListObjLength(NULL, list2Ptr, &len); - if (list2Ptr->bytes != NULL) { - ckfree(list2Ptr->bytes); - list2Ptr->bytes = NULL; - } + Tcl_InvalidateStringRep(list2Ptr); /* * Verify that concat'ing a list obj with one or more empty strings does diff --git a/generic/tclTimer.c b/generic/tclTimer.c index 3467305..ef7a095 100644 --- a/generic/tclTimer.c +++ b/generic/tclTimer.c @@ -789,7 +789,7 @@ Tcl_AfterObjCmd( AfterInfo *afterPtr; AfterAssocData *assocPtr; int length; - int index; + int index = -1; static const char *const afterSubCmds[] = { "cancel", "idle", "info", NULL }; @@ -818,15 +818,9 @@ Tcl_AfterObjCmd( * First lets see if the command was passed a number as the first argument. */ - if (objv[1]->typePtr == &tclIntType -#ifndef TCL_WIDE_INT_IS_LONG - || objv[1]->typePtr == &tclWideIntType -#endif - || objv[1]->typePtr == &tclBignumType - || (Tcl_GetIndexFromObj(NULL, objv[1], afterSubCmds, "", 0, - &index) != TCL_OK)) { - index = -1; - if (Tcl_GetWideIntFromObj(NULL, objv[1], &ms) != TCL_OK) { + if (Tcl_GetWideIntFromObj(NULL, objv[1], &ms) != TCL_OK) { + if (Tcl_GetIndexFromObj(NULL, objv[1], afterSubCmds, "", 0, &index) + != TCL_OK) { const char *arg = Tcl_GetString(objv[1]); Tcl_SetObjResult(interp, Tcl_ObjPrintf( diff --git a/generic/tclUtil.c b/generic/tclUtil.c index 608cd15..8d1afc6 100644 --- a/generic/tclUtil.c +++ b/generic/tclUtil.c @@ -108,9 +108,8 @@ static void ClearHash(Tcl_HashTable *tablePtr); static void FreeProcessGlobalValue(ClientData clientData); static void FreeThreadHash(ClientData clientData); static Tcl_HashTable * GetThreadHash(Tcl_ThreadDataKey *keyPtr); -static int SetEndOffsetFromAny(Tcl_Interp *interp, - Tcl_Obj *objPtr); -static void UpdateStringOfEndOffset(Tcl_Obj *objPtr); +static int GetEndOffsetFromObj(Tcl_Obj *objPtr, int endValue, + int *indexPtr); static int FindElement(Tcl_Interp *interp, const char *string, int stringLength, const char *typeStr, const char *typeCode, const char **elementPtr, @@ -123,12 +122,12 @@ static int FindElement(Tcl_Interp *interp, const char *string, * integer, so no memory management is required for it. */ -const Tcl_ObjType tclEndOffsetType = { +static const Tcl_ObjType endOffsetType = { "end-offset", /* name */ NULL, /* freeIntRepProc */ NULL, /* dupIntRepProc */ - UpdateStringOfEndOffset, /* updateStringProc */ - SetEndOffsetFromAny + NULL, /* updateStringProc */ + NULL }; /* @@ -1384,9 +1383,9 @@ TclConvertElement( */ if ((src == NULL) || (length == 0) || (*src == '\0' && length == -1)) { - src = &tclEmptyString; - length = 0; - conversion = CONVERT_BRACE; + p[0] = '{'; + p[1] = '}'; + return 2; } /* @@ -1977,7 +1976,7 @@ Tcl_ConcatObj( resPtr = NULL; for (i = 0; i < objc; i++) { objPtr = objv[i]; - if (objPtr->bytes && objPtr->length == 0) { + if (!TclListObjIsCanonical(objPtr)) { continue; } if (resPtr) { @@ -3592,13 +3591,7 @@ TclGetIntForIndex( return TCL_OK; } - if (SetEndOffsetFromAny(NULL, objPtr) == TCL_OK) { - /* - * If the object is already an offset from the end of the list, or can - * be converted to one, use it. - */ - - *indexPtr = endValue + objPtr->internalRep.longValue; + if (GetEndOffsetFromObj(objPtr, endValue, indexPtr) == TCL_OK) { return TCL_OK; } @@ -3665,134 +3658,53 @@ TclGetIntForIndex( /* *---------------------------------------------------------------------- * - * UpdateStringOfEndOffset -- - * - * Update the string rep of a Tcl object holding an "end-offset" - * expression. - * - * Results: - * None. - * - * Side effects: - * Stores a valid string in the object's string rep. - * - * This function does NOT free any earlier string rep. If it is called on an - * object that already has a valid string rep, it will leak memory. - * - *---------------------------------------------------------------------- - */ - -static void -UpdateStringOfEndOffset( - register Tcl_Obj *objPtr) -{ - char buffer[TCL_INTEGER_SPACE + 5]; - register int len = 3; - - memcpy(buffer, "end", 4); - if (objPtr->internalRep.longValue != 0) { - buffer[len++] = '-'; - len += TclFormatInt(buffer+len, -(objPtr->internalRep.longValue)); - } - objPtr->bytes = ckalloc((unsigned) len+1); - memcpy(objPtr->bytes, buffer, (unsigned) len+1); - objPtr->length = len; -} - -/* - *---------------------------------------------------------------------- - * - * SetEndOffsetFromAny -- + * GetEndOffsetFromObj -- * * Look for a string of the form "end[+-]offset" and convert it to an * internal representation holding the offset. * * Results: - * Returns TCL_OK if ok, TCL_ERROR if the string was badly formed. + * Tcl return code. * * Side effects: - * If interp is not NULL, stores an error message in the interpreter - * result. + * May store a Tcl_ObjType. * *---------------------------------------------------------------------- */ static int -SetEndOffsetFromAny( - Tcl_Interp *interp, /* Tcl interpreter or NULL */ - Tcl_Obj *objPtr) /* Pointer to the object to parse */ +GetEndOffsetFromObj( + Tcl_Obj *objPtr, /* Pointer to the object to parse */ + int endValue, /* The value to be stored at "indexPtr" if + * "objPtr" holds "end". */ + int *indexPtr) /* Location filled in with an integer + * representing an index. */ { - int offset; /* Offset in the "end-offset" expression */ - register const char *bytes; /* String rep of the object */ - int length; /* Length of the object's string rep */ - - /* - * If it's already the right type, we're fine. - */ - - if (objPtr->typePtr == &tclEndOffsetType) { - return TCL_OK; - } - - /* - * Check for a string rep of the right form. - */ + const Tcl_ObjIntRep *irPtr; - bytes = TclGetStringFromObj(objPtr, &length); - if ((*bytes != 'e') || (strncmp(bytes, "end", - (size_t)((length > 3) ? 3 : length)) != 0)) { - if (interp != NULL) { - Tcl_SetObjResult(interp, Tcl_ObjPrintf( - "bad index \"%s\": must be end?[+-]integer?", bytes)); - Tcl_SetErrorCode(interp, "TCL", "VALUE", "INDEX", NULL); - } - return TCL_ERROR; - } - - /* - * Convert the string rep. - */ - - if (length <= 3) { - offset = 0; - } else if ((length > 4) && ((bytes[3] == '-') || (bytes[3] == '+'))) { - /* - * This is our limited string expression evaluator. Pass everything - * after "end-" to Tcl_GetInt, then reverse for offset. - */ + while (NULL == (irPtr = Tcl_FetchIntRep(objPtr, &endOffsetType))) { + Tcl_ObjIntRep ir; + int length, offset = 0; + const char *bytes = TclGetStringFromObj(objPtr, &length); - if (TclIsSpaceProc(bytes[4])) { - goto badIndexFormat; - } - if (Tcl_GetInt(interp, bytes+4, &offset) != TCL_OK) { + if ((length == 4) || (*bytes != 'e') || (strncmp(bytes, "end", + (size_t)((length > 3) ? 3 : length)) != 0)) { return TCL_ERROR; } - if (bytes[3] == '-') { - offset = -offset; - } - } else { - /* - * Conversion failed. Report the error. - */ - - badIndexFormat: - if (interp != NULL) { - Tcl_SetObjResult(interp, Tcl_ObjPrintf( - "bad index \"%s\": must be end?[+-]integer?", bytes)); - Tcl_SetErrorCode(interp, "TCL", "VALUE", "INDEX", NULL); + if (length > 4) { + if (((bytes[3] != '-') && (bytes[3] != '+')) + || (TclIsSpaceProc(bytes[4])) + || (TCL_OK != Tcl_GetInt(NULL, bytes+4, &offset))) { + return TCL_ERROR; + } + if (bytes[3] == '-') { + offset = -offset; + } } - return TCL_ERROR; + ir.longValue = offset; + Tcl_StoreIntRep(objPtr, &endOffsetType, &ir); } - - /* - * The conversion succeeded. Free the old internal rep and set the new - * one. - */ - - TclFreeIntRep(objPtr); - objPtr->internalRep.longValue = offset; - objPtr->typePtr = &tclEndOffsetType; - + *indexPtr = endValue + irPtr->longValue; return TCL_OK; } diff --git a/generic/tclVar.c b/generic/tclVar.c index 7c8bb73..4c3d4a1 100644 --- a/generic/tclVar.c +++ b/generic/tclVar.c @@ -226,11 +226,50 @@ static const Tcl_ObjType localVarNameType = { FreeLocalVarName, DupLocalVarName, NULL, NULL }; -static const Tcl_ObjType tclParsedVarNameType = { +#define LocalSetIntRep(objPtr, index, namePtr) \ + do { \ + Tcl_ObjIntRep ir; \ + Tcl_Obj *ptr = (namePtr); \ + if (ptr) {Tcl_IncrRefCount(ptr);} \ + ir.twoPtrValue.ptr1 = ptr; \ + ir.twoPtrValue.ptr2 = INT2PTR(index); \ + Tcl_StoreIntRep((objPtr), &localVarNameType, &ir); \ + } while (0) + +#define LocalGetIntRep(objPtr, index, name) \ + do { \ + const Tcl_ObjIntRep *irPtr; \ + irPtr = Tcl_FetchIntRep((objPtr), &localVarNameType); \ + (name) = irPtr ? irPtr->twoPtrValue.ptr1 : NULL; \ + (index) = irPtr ? PTR2INT(irPtr->twoPtrValue.ptr2) : -1; \ + } while (0) + +static const Tcl_ObjType parsedVarNameType = { "parsedVarName", FreeParsedVarName, DupParsedVarName, NULL, NULL }; +#define ParsedSetIntRep(objPtr, arrayPtr, elem) \ + do { \ + Tcl_ObjIntRep ir; \ + Tcl_Obj *ptr1 = (arrayPtr); \ + Tcl_Obj *ptr2 = (elem); \ + if (ptr1) {Tcl_IncrRefCount(ptr1);} \ + if (ptr2) {Tcl_IncrRefCount(ptr2);} \ + ir.twoPtrValue.ptr1 = ptr1; \ + ir.twoPtrValue.ptr2 = ptr2; \ + Tcl_StoreIntRep((objPtr), &parsedVarNameType, &ir); \ + } while (0) + +#define ParsedGetIntRep(objPtr, parsed, array, elem) \ + do { \ + const Tcl_ObjIntRep *irPtr; \ + irPtr = Tcl_FetchIntRep((objPtr), &parsedVarNameType); \ + (parsed) = (irPtr != NULL); \ + (array) = irPtr ? irPtr->twoPtrValue.ptr1 : NULL; \ + (elem) = irPtr ? irPtr->twoPtrValue.ptr2 : NULL; \ + } while (0) + Var * TclVarHashCreateVar( @@ -417,9 +456,8 @@ TclLookupVar( * * Side effects: * New hashtable entries may be created if createPart1 or createPart2 - * are 1. The object part1Ptr is converted to one of localVarNameType, - * tclNsVarNameType or tclParsedVarNameType and caches as much of the - * lookup as it can. + * are 1. The object part1Ptr is converted to one of localVarNameType + * or parsedVarNameType and caches as much of the lookup as it can. * When createPart1 is 1, callers must IncrRefCount part1Ptr if they * plan to DecrRefCount it. * @@ -506,15 +544,15 @@ TclObjLookupVarEx( * structure. */ const char *errMsg = NULL; int index, parsed = 0; - const Tcl_ObjType *typePtr = part1Ptr->typePtr; - *arrayPtrPtr = NULL; + int localIndex; + Tcl_Obj *namePtr, *arrayPtr, *elem; - if (typePtr == &localVarNameType) { - int localIndex; + *arrayPtrPtr = NULL; - localVarNameTypeHandling: - localIndex = PTR2INT(part1Ptr->internalRep.twoPtrValue.ptr2); + restart: + LocalGetIntRep(part1Ptr, localIndex, namePtr); + if (localIndex >= 0) { if (HasLocalVars(varFramePtr) && !(flags & (TCL_GLOBAL_ONLY | TCL_NAMESPACE_ONLY)) && (localIndex < varFramePtr->numCompiledLocals)) { @@ -522,7 +560,6 @@ TclObjLookupVarEx( * Use the cached index if the names coincide. */ - Tcl_Obj *namePtr = part1Ptr->internalRep.twoPtrValue.ptr1; Tcl_Obj *checkNamePtr = localName(varFramePtr, localIndex); if ((!namePtr && (checkNamePtr == part1Ptr)) || @@ -535,12 +572,11 @@ TclObjLookupVarEx( } /* - * If part1Ptr is a tclParsedVarNameType, separate it into the pre-parsed - * parts. + * If part1Ptr is a parsedVarNameType, retrieve the pre-parsed parts. */ - if (typePtr == &tclParsedVarNameType) { - if (part1Ptr->internalRep.twoPtrValue.ptr1 != NULL) { + ParsedGetIntRep(part1Ptr, parsed, arrayPtr, elem); + if (parsed && arrayPtr) { if (part2Ptr != NULL) { /* * ERROR: part1Ptr is already an array element, cannot specify @@ -554,14 +590,9 @@ TclObjLookupVarEx( } return NULL; } - part2Ptr = part1Ptr->internalRep.twoPtrValue.ptr2; - part1Ptr = part1Ptr->internalRep.twoPtrValue.ptr1; - typePtr = part1Ptr->typePtr; - if (typePtr == &localVarNameType) { - goto localVarNameTypeHandling; - } - } - parsed = 1; + part2Ptr = elem; + part1Ptr = arrayPtr; + goto restart; } if (!parsed) { @@ -578,8 +609,6 @@ TclObjLookupVarEx( const char *part2 = strchr(part1, '('); if (part2) { - Tcl_Obj *arrayPtr; - if (part2Ptr != NULL) { if (flags & TCL_LEAVE_ERR_MSG) { TclObjVarErrMsg(interp, part1Ptr, part2Ptr, msg, @@ -593,13 +622,7 @@ TclObjLookupVarEx( arrayPtr = Tcl_NewStringObj(part1, (part2 - part1)); part2Ptr = Tcl_NewStringObj(part2 + 1, len - (part2 - part1) - 2); - TclFreeIntRep(part1Ptr); - - Tcl_IncrRefCount(arrayPtr); - part1Ptr->internalRep.twoPtrValue.ptr1 = arrayPtr; - Tcl_IncrRefCount(part2Ptr); - part1Ptr->internalRep.twoPtrValue.ptr2 = part2Ptr; - part1Ptr->typePtr = &tclParsedVarNameType; + ParsedSetIntRep(part1Ptr, arrayPtr, part2Ptr); part1Ptr = arrayPtr; } @@ -627,33 +650,42 @@ TclObjLookupVarEx( * Cache the newly found variable if possible. */ - TclFreeIntRep(part1Ptr); if (index >= 0) { /* * An indexed local variable. */ Tcl_Obj *cachedNamePtr = localName(varFramePtr, index); - part1Ptr->typePtr = &localVarNameType; - if (part1Ptr != cachedNamePtr) { - part1Ptr->internalRep.twoPtrValue.ptr1 = cachedNamePtr; - Tcl_IncrRefCount(cachedNamePtr); - if (cachedNamePtr->typePtr != &localVarNameType - || cachedNamePtr->internalRep.twoPtrValue.ptr1 != NULL) { - TclFreeIntRep(cachedNamePtr); - } + if (part1Ptr == cachedNamePtr) { + cachedNamePtr = NULL; } else { - part1Ptr->internalRep.twoPtrValue.ptr1 = NULL; + /* + * [80304238ac] Trickiness here. We will store and incr the + * refcount on cachedNamePtr. Trouble is that it's possible + * (see test var-22.1) for cachedNamePtr to have an intrep + * that contains a stored and refcounted part1Ptr. This + * would be a reference cycle which leads to a memory leak. + * + * The solution here is to wipe away all intrep(s) in + * cachedNamePtr and leave it as string only. This is + * radical and destructive, so a better idea would be welcome. + */ + TclFreeIntRep(cachedNamePtr); + + /* + * Now go ahead and convert it the the "localVarName" type, + * since we suspect at least some use of the value as a + * varname and we want to resolve it quickly. + */ + LocalSetIntRep(cachedNamePtr, index, NULL); } - part1Ptr->internalRep.twoPtrValue.ptr2 = INT2PTR(index); + LocalSetIntRep(part1Ptr, index, cachedNamePtr); } else { /* * At least mark part1Ptr as already parsed. */ - part1Ptr->typePtr = &tclParsedVarNameType; - part1Ptr->internalRep.twoPtrValue.ptr1 = NULL; - part1Ptr->internalRep.twoPtrValue.ptr2 = NULL; + ParsedSetIntRep(part1Ptr, NULL, NULL); } donePart1: @@ -5512,12 +5544,15 @@ static void FreeLocalVarName( Tcl_Obj *objPtr) { - Tcl_Obj *namePtr = objPtr->internalRep.twoPtrValue.ptr1; + int index; + Tcl_Obj *namePtr; + + LocalGetIntRep(objPtr, index, namePtr); + index++; /* Compiler warning bait. */ if (namePtr) { Tcl_DecrRefCount(namePtr); } - objPtr->typePtr = NULL; } static void @@ -5525,17 +5560,14 @@ DupLocalVarName( Tcl_Obj *srcPtr, Tcl_Obj *dupPtr) { - Tcl_Obj *namePtr = srcPtr->internalRep.twoPtrValue.ptr1; + int index; + Tcl_Obj *namePtr; + LocalGetIntRep(srcPtr, index, namePtr); if (!namePtr) { namePtr = srcPtr; } - dupPtr->internalRep.twoPtrValue.ptr1 = namePtr; - Tcl_IncrRefCount(namePtr); - - dupPtr->internalRep.twoPtrValue.ptr2 = - srcPtr->internalRep.twoPtrValue.ptr2; - dupPtr->typePtr = &localVarNameType; + LocalSetIntRep(dupPtr, index, namePtr); } /* @@ -5551,14 +5583,16 @@ static void FreeParsedVarName( Tcl_Obj *objPtr) { - register Tcl_Obj *arrayPtr = objPtr->internalRep.twoPtrValue.ptr1; - register Tcl_Obj *elem = objPtr->internalRep.twoPtrValue.ptr2; + register Tcl_Obj *arrayPtr, *elem; + int parsed; + + ParsedGetIntRep(objPtr, parsed, arrayPtr, elem); + parsed++; /* Silence compiler. */ if (arrayPtr != NULL) { TclDecrRefCount(arrayPtr); TclDecrRefCount(elem); } - objPtr->typePtr = NULL; } static void @@ -5566,17 +5600,13 @@ DupParsedVarName( Tcl_Obj *srcPtr, Tcl_Obj *dupPtr) { - register Tcl_Obj *arrayPtr = srcPtr->internalRep.twoPtrValue.ptr1; - register Tcl_Obj *elem = srcPtr->internalRep.twoPtrValue.ptr2; + register Tcl_Obj *arrayPtr, *elem; + int parsed; - if (arrayPtr != NULL) { - Tcl_IncrRefCount(arrayPtr); - Tcl_IncrRefCount(elem); - } + ParsedGetIntRep(srcPtr, parsed, arrayPtr, elem); - dupPtr->internalRep.twoPtrValue.ptr1 = arrayPtr; - dupPtr->internalRep.twoPtrValue.ptr2 = elem; - dupPtr->typePtr = &tclParsedVarNameType; + parsed++; /* Silence compiler. */ + ParsedSetIntRep(dupPtr, arrayPtr, elem); } /* diff --git a/library/clock.tcl b/library/clock.tcl index 8e4b657..8e4b657 100644..100755 --- a/library/clock.tcl +++ b/library/clock.tcl diff --git a/macosx/tclMacOSXFCmd.c b/macosx/tclMacOSXFCmd.c index 3adc808..f09a441 100644 --- a/macosx/tclMacOSXFCmd.c +++ b/macosx/tclMacOSXFCmd.c @@ -692,24 +692,28 @@ UpdateStringOfOSType( register Tcl_Obj *objPtr) /* OSType object whose string rep to * update. */ { - char string[5]; + const int size = TCL_UTF_MAX * 4; + char *dst = Tcl_InitStringRep(objPtr, NULL, size); OSType osType = (OSType) objPtr->internalRep.longValue; - Tcl_DString ds; - Tcl_Encoding encoding = Tcl_GetEncoding(NULL, "macRoman"); - unsigned len; - - string[0] = (char) (osType >> 24); - string[1] = (char) (osType >> 16); - string[2] = (char) (osType >> 8); - string[3] = (char) (osType); - string[4] = '\0'; - Tcl_ExternalToUtfDString(encoding, string, -1, &ds); - len = (unsigned) Tcl_DStringLength(&ds) + 1; - objPtr->bytes = ckalloc(len); - memcpy(objPtr->bytes, Tcl_DStringValue(&ds), len); - objPtr->length = Tcl_DStringLength(&ds); - Tcl_DStringFree(&ds); + int written = 0; + Tcl_Encoding encoding; + char src[5]; + + TclOOM(dst, size); + + src[0] = (char) (osType >> 24); + src[1] = (char) (osType >> 16); + src[2] = (char) (osType >> 8); + src[3] = (char) (osType); + src[4] = '\0'; + + encoding = Tcl_GetEncoding(NULL, "macRoman"); + Tcl_ExternalToUtf(NULL, encoding, src, -1, /* flags */ 0, + /* statePtr */ NULL, dst, size, /* srcReadPtr */ NULL, + /* dstWrotePtr */ &written, /* dstCharsPtr */ NULL); Tcl_FreeEncoding(encoding); + + (void)Tcl_InitStringRep(objPtr, NULL, written); } /* diff --git a/tests/obj.test b/tests/obj.test index 833c906..e40ebeb 100644 --- a/tests/obj.test +++ b/tests/obj.test @@ -30,7 +30,6 @@ test obj-1.1 {Tcl_AppendAllObjTypes, and InitTypeTable, Tcl_RegisterObjType} tes bytecode cmdName dict - end-offset regexp string } { @@ -52,15 +51,6 @@ test obj-2.2 {Tcl_GetObjType and Tcl_ConvertToType} testobj { lappend result [testobj refcount 1] } {{} 12 12 bytearray 3} -test obj-3.1 {Tcl_ConvertToType error} testobj { - list [testdoubleobj set 1 12.34] \ - [catch {testobj convert 1 end-offset} msg] \ - $msg -} {12.34 1 {bad index "12.34": must be end?[+-]integer?}} -test obj-3.2 {Tcl_ConvertToType error, "empty string" object} testobj { - list [testobj newobj 1] [catch {testobj convert 1 end-offset} msg] $msg -} {{} 1 {bad index "": must be end?[+-]integer?}} - test obj-4.1 {Tcl_NewObj and AllocateFreeObjects} testobj { set result "" lappend result [testobj freeallvars] @@ -550,44 +540,6 @@ test obj-30.1 {Ref counting and object deletion, simple types} testobj { lappend result [testobj refcount 2] } {{} 1024 1024 int 4 4 0 int 3 2} - -test obj-31.1 {regenerate string rep of "end"} testobj { - testobj freeallvars - teststringobj set 1 end - testobj convert 1 end-offset - testobj invalidateStringRep 1 -} end -test obj-31.2 {regenerate string rep of "end-1"} testobj { - testobj freeallvars - teststringobj set 1 end-0x1 - testobj convert 1 end-offset - testobj invalidateStringRep 1 -} end-1 -test obj-31.3 {regenerate string rep of "end--1"} testobj { - testobj freeallvars - teststringobj set 1 end--0x1 - testobj convert 1 end-offset - testobj invalidateStringRep 1 -} end--1 -test obj-31.4 {regenerate string rep of "end-bigInteger"} testobj { - testobj freeallvars - teststringobj set 1 end-0x7fffffff - testobj convert 1 end-offset - testobj invalidateStringRep 1 -} end-2147483647 -test obj-31.5 {regenerate string rep of "end--bigInteger"} testobj { - testobj freeallvars - teststringobj set 1 end--0x7fffffff - testobj convert 1 end-offset - testobj invalidateStringRep 1 -} end--2147483647 -test obj-31.6 {regenerate string rep of "end--bigInteger"} {testobj longIs32bit} { - testobj freeallvars - teststringobj set 1 end--0x80000000 - testobj convert 1 end-offset - testobj invalidateStringRep 1 -} end--2147483648 - test obj-32.1 {freeing very large object trees} { set x {} for {set i 0} {$i<100000} {incr i} { diff --git a/unix/tclUnixSock.c b/unix/tclUnixSock.c index 45abc01..f595eac 100644 --- a/unix/tclUnixSock.c +++ b/unix/tclUnixSock.c @@ -253,9 +253,6 @@ InitializeHostName( native = u.nodename; } } - if (native == NULL) { - native = &tclEmptyString; - } #else /* !NO_UNAME */ /* * Uname doesn't exist; try gethostname instead. @@ -284,9 +281,15 @@ InitializeHostName( #endif /* NO_UNAME */ *encodingPtr = Tcl_GetEncoding(NULL, NULL); - *lengthPtr = strlen(native); - *valuePtr = ckalloc(*lengthPtr + 1); - memcpy(*valuePtr, native, *lengthPtr + 1); + if (native) { + *lengthPtr = strlen(native); + *valuePtr = ckalloc(*lengthPtr + 1); + memcpy(*valuePtr, native, *lengthPtr + 1); + } else { + *lengthPtr = 0; + *valuePtr = ckalloc(1); + *valuePtr[0] = '\0'; + } } /* diff --git a/win/tclWinFile.c b/win/tclWinFile.c index 700e3c8..700e3c8 100644..100755 --- a/win/tclWinFile.c +++ b/win/tclWinFile.c |