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- /*
- * tclObj.c --
- *
- * This file contains Tcl object-related procedures that are used by
- * many Tcl commands.
- *
- * Copyright (c) 1995-1997 Sun Microsystems, Inc.
- *
- * See the file "license.terms" for information on usage and redistribution
- * of this file, and for a DISCLAIMER OF ALL WARRANTIES.
- *
- * SCCS: @(#) tclObj.c 1.45 97/07/07 18:26:00
- */
-
- #include "tclInt.h"
- #include "tclPort.h"
-
- /*
- * Table of all object types.
- */
-
- static Tcl_HashTable typeTable;
- static int typeTableInitialized = 0; /* 0 means not yet initialized. */
-
- /*
- * Head of the list of free Tcl_Objs we maintain.
- */
-
- Tcl_Obj *tclFreeObjList = NULL;
-
- /*
- * Pointer to a heap-allocated string of length zero that the Tcl core uses
- * as the value of an empty string representation for an object. This value
- * is shared by all new objects allocated by Tcl_NewObj.
- */
-
- char *tclEmptyStringRep = NULL;
-
- /*
- * Count of the number of Tcl objects every allocated (by Tcl_NewObj) and
- * freed (by TclFreeObj).
- */
-
- #ifdef TCL_COMPILE_STATS
- long tclObjsAlloced = 0;
- long tclObjsFreed = 0;
- #endif /* TCL_COMPILE_STATS */
-
- /*
- * Prototypes for procedures defined later in this file:
- */
-
- static void DupBooleanInternalRep _ANSI_ARGS_((Tcl_Obj *srcPtr,
- Tcl_Obj *copyPtr));
- static void DupDoubleInternalRep _ANSI_ARGS_((Tcl_Obj *srcPtr,
- Tcl_Obj *copyPtr));
- static void DupIntInternalRep _ANSI_ARGS_((Tcl_Obj *srcPtr,
- Tcl_Obj *copyPtr));
- static void FinalizeTypeTable _ANSI_ARGS_((void));
- static void FinalizeFreeObjList _ANSI_ARGS_((void));
- static void InitTypeTable _ANSI_ARGS_((void));
- static int SetBooleanFromAny _ANSI_ARGS_((Tcl_Interp *interp,
- Tcl_Obj *objPtr));
- static int SetDoubleFromAny _ANSI_ARGS_((Tcl_Interp *interp,
- Tcl_Obj *objPtr));
- static int SetIntFromAny _ANSI_ARGS_((Tcl_Interp *interp,
- Tcl_Obj *objPtr));
- static void UpdateStringOfBoolean _ANSI_ARGS_((Tcl_Obj *objPtr));
- static void UpdateStringOfDouble _ANSI_ARGS_((Tcl_Obj *objPtr));
- static void UpdateStringOfInt _ANSI_ARGS_((Tcl_Obj *objPtr));
-
- /*
- * The structures below defines the Tcl object types defined in this file by
- * means of procedures that can be invoked by generic object code. See also
- * tclStringObj.c, tclListObj.c, tclByteCode.c for other type manager
- * implementations.
- */
-
- Tcl_ObjType tclBooleanType = {
- "boolean", /* name */
- (Tcl_FreeInternalRepProc *) NULL, /* freeIntRepProc */
- DupBooleanInternalRep, /* dupIntRepProc */
- UpdateStringOfBoolean, /* updateStringProc */
- SetBooleanFromAny /* setFromAnyProc */
- };
-
- Tcl_ObjType tclDoubleType = {
- "double", /* name */
- (Tcl_FreeInternalRepProc *) NULL, /* freeIntRepProc */
- DupDoubleInternalRep, /* dupIntRepProc */
- UpdateStringOfDouble, /* updateStringProc */
- SetDoubleFromAny /* setFromAnyProc */
- };
-
- Tcl_ObjType tclIntType = {
- "int", /* name */
- (Tcl_FreeInternalRepProc *) NULL, /* freeIntRepProc */
- DupIntInternalRep, /* dupIntRepProc */
- UpdateStringOfInt, /* updateStringProc */
- SetIntFromAny /* setFromAnyProc */
- };
-
- /*
- *--------------------------------------------------------------
- *
- * InitTypeTable --
- *
- * This procedure is invoked to perform once-only initialization of
- * the type table. It also registers the object types defined in
- * this file.
- *
- * Results:
- * None.
- *
- * Side effects:
- * Initializes the table of defined object types "typeTable" with
- * builtin object types defined in this file. It also initializes the
- * value of tclEmptyStringRep, which points to the heap-allocated
- * string of length zero used as the string representation for
- * newly-created objects.
- *
- *--------------------------------------------------------------
- */
-
- static void
- InitTypeTable()
- {
- typeTableInitialized = 1;
-
- Tcl_InitHashTable(&typeTable, TCL_STRING_KEYS);
- Tcl_RegisterObjType(&tclBooleanType);
- Tcl_RegisterObjType(&tclDoubleType);
- Tcl_RegisterObjType(&tclIntType);
- Tcl_RegisterObjType(&tclStringType);
- Tcl_RegisterObjType(&tclListType);
- Tcl_RegisterObjType(&tclByteCodeType);
-
- tclEmptyStringRep = (char *) ckalloc((unsigned) 1);
- tclEmptyStringRep[0] = '\0';
- }
-
- /*
- *----------------------------------------------------------------------
- *
- * FinalizeTypeTable --
- *
- * This procedure is called by Tcl_Finalize after all exit handlers
- * have been run to free up storage associated with the table of Tcl
- * object types.
- *
- * Results:
- * None.
- *
- * Side effects:
- * Deletes all entries in the hash table of object types, "typeTable".
- * Then sets "typeTableInitialized" to 0 so that the Tcl type system
- * will be properly reinitialized if Tcl is restarted. Also deallocates
- * the storage for tclEmptyStringRep.
- *
- *----------------------------------------------------------------------
- */
-
- static void
- FinalizeTypeTable()
- {
- if (typeTableInitialized) {
- Tcl_DeleteHashTable(&typeTable);
- ckfree(tclEmptyStringRep);
- typeTableInitialized = 0;
- }
- }
-
- /*
- *----------------------------------------------------------------------
- *
- * FinalizeFreeObjList --
- *
- * Resets the free object list so it can later be reinitialized.
- *
- * Results:
- * None.
- *
- * Side effects:
- * Resets the value of tclFreeObjList.
- *
- *----------------------------------------------------------------------
- */
-
- static void
- FinalizeFreeObjList()
- {
- tclFreeObjList = NULL;
- }
-
- /*
- *----------------------------------------------------------------------
- *
- * TclFinalizeCompExecEnv --
- *
- * Clean up the compiler execution environment so it can later be
- * properly reinitialized.
- *
- * Results:
- * None.
- *
- * Side effects:
- * Cleans up the execution environment
- *
- *----------------------------------------------------------------------
- */
-
- void
- TclFinalizeCompExecEnv()
- {
- FinalizeTypeTable();
- FinalizeFreeObjList();
- TclFinalizeExecEnv();
- }
-
- /*
- *--------------------------------------------------------------
- *
- * Tcl_RegisterObjType --
- *
- * This procedure is called to register a new Tcl object type
- * in the table of all object types supported by Tcl.
- *
- * Results:
- * None.
- *
- * Side effects:
- * The type is registered in the Tcl type table. If there was already
- * a type with the same name as in typePtr, it is replaced with the
- * new type.
- *
- *--------------------------------------------------------------
- */
-
- void
- Tcl_RegisterObjType(typePtr)
- Tcl_ObjType *typePtr; /* Information about object type;
- * storage must be statically
- * allocated (must live forever). */
- {
- register Tcl_HashEntry *hPtr;
- int new;
-
- if (!typeTableInitialized) {
- InitTypeTable();
- }
-
- /*
- * If there's already an object type with the given name, remove it.
- */
-
- hPtr = Tcl_FindHashEntry(&typeTable, typePtr->name);
- if (hPtr != (Tcl_HashEntry *) NULL) {
- Tcl_DeleteHashEntry(hPtr);
- }
-
- /*
- * Now insert the new object type.
- */
-
- hPtr = Tcl_CreateHashEntry(&typeTable, typePtr->name, &new);
- if (new) {
- Tcl_SetHashValue(hPtr, typePtr);
- }
- }
-
- /*
- *----------------------------------------------------------------------
- *
- * Tcl_AppendAllObjTypes --
- *
- * This procedure appends onto the argument object the name of each
- * object type as a list element. This includes the builtin object
- * types (e.g. int, list) as well as those added using
- * Tcl_CreateObjType. These names can be used, for example, with
- * Tcl_GetObjType to get pointers to the corresponding Tcl_ObjType
- * structures.
- *
- * Results:
- * The return value is normally TCL_OK; in this case the object
- * referenced by objPtr has each type name appended to it. If an
- * error occurs, TCL_ERROR is returned and the interpreter's result
- * holds an error message.
- *
- * Side effects:
- * If necessary, the object referenced by objPtr is converted into
- * a list object.
- *
- *----------------------------------------------------------------------
- */
-
- int
- Tcl_AppendAllObjTypes(interp, objPtr)
- Tcl_Interp *interp; /* Interpreter used for error reporting. */
- Tcl_Obj *objPtr; /* Points to the Tcl object onto which the
- * name of each registered type is appended
- * as a list element. */
- {
- register Tcl_HashEntry *hPtr;
- Tcl_HashSearch search;
- Tcl_ObjType *typePtr;
- int result;
-
- if (!typeTableInitialized) {
- InitTypeTable();
- }
-
- /*
- * This code assumes that types names do not contain embedded NULLs.
- */
-
- for (hPtr = Tcl_FirstHashEntry(&typeTable, &search);
- hPtr != NULL; hPtr = Tcl_NextHashEntry(&search)) {
- typePtr = (Tcl_ObjType *) Tcl_GetHashValue(hPtr);
- result = Tcl_ListObjAppendElement(interp, objPtr,
- Tcl_NewStringObj(typePtr->name, -1));
- if (result == TCL_ERROR) {
- return result;
- }
- }
- return TCL_OK;
- }
-
- /*
- *----------------------------------------------------------------------
- *
- * Tcl_GetObjType --
- *
- * This procedure looks up an object type by name.
- *
- * Results:
- * If an object type with name matching "typeName" is found, a pointer
- * to its Tcl_ObjType structure is returned; otherwise, NULL is
- * returned.
- *
- * Side effects:
- * None.
- *
- *----------------------------------------------------------------------
- */
-
- Tcl_ObjType *
- Tcl_GetObjType(typeName)
- char *typeName; /* Name of Tcl object type to look up. */
- {
- register Tcl_HashEntry *hPtr;
- Tcl_ObjType *typePtr;
-
- if (!typeTableInitialized) {
- InitTypeTable();
- }
-
- hPtr = Tcl_FindHashEntry(&typeTable, typeName);
- if (hPtr != (Tcl_HashEntry *) NULL) {
- typePtr = (Tcl_ObjType *) Tcl_GetHashValue(hPtr);
- return typePtr;
- }
- return NULL;
- }
-
- /*
- *----------------------------------------------------------------------
- *
- * Tcl_ConvertToType --
- *
- * Convert the Tcl object "objPtr" to have type "typePtr" if possible.
- *
- * Results:
- * The return value is TCL_OK on success and TCL_ERROR on failure. If
- * TCL_ERROR is returned, then the interpreter's result contains an
- * error message unless "interp" is NULL. Passing a NULL "interp"
- * allows this procedure to be used as a test whether the conversion
- * could be done (and in fact was done).
- *
- * Side effects:
- * Any internal representation for the old type is freed.
- *
- *----------------------------------------------------------------------
- */
-
- int
- Tcl_ConvertToType(interp, objPtr, typePtr)
- Tcl_Interp *interp; /* Used for error reporting if not NULL. */
- Tcl_Obj *objPtr; /* The object to convert. */
- Tcl_ObjType *typePtr; /* The target type. */
- {
- if (objPtr->typePtr == typePtr) {
- return TCL_OK;
- }
-
- /*
- * Use the target type's Tcl_SetFromAnyProc to set "objPtr"s internal
- * form as appropriate for the target type. This frees the old internal
- * representation.
- */
-
- return typePtr->setFromAnyProc(interp, objPtr);
- }
-
- /*
- *----------------------------------------------------------------------
- *
- * Tcl_NewObj --
- *
- * This procedure is normally called when not debugging: i.e., when
- * TCL_MEM_DEBUG is not defined. It creates new Tcl objects that denote
- * the empty string. These objects have a NULL object type and NULL
- * string representation byte pointer. Type managers call this routine
- * to allocate new objects that they further initialize.
- *
- * When TCL_MEM_DEBUG is defined, this procedure just returns the
- * result of calling the debugging version Tcl_DbNewObj.
- *
- * Results:
- * The result is a newly allocated object that represents the empty
- * string. The new object's typePtr is set NULL and its ref count
- * is set to 0.
- *
- * Side effects:
- * If compiling with TCL_COMPILE_STATS, this procedure increments
- * the global count of allocated objects (tclObjsAlloced).
- *
- *----------------------------------------------------------------------
- */
-
- #ifdef TCL_MEM_DEBUG
- #undef Tcl_NewObj
-
- Tcl_Obj *
- Tcl_NewObj()
- {
- return Tcl_DbNewObj("unknown", 0);
- }
-
- #else /* if not TCL_MEM_DEBUG */
-
- Tcl_Obj *
- Tcl_NewObj()
- {
- register Tcl_Obj *objPtr;
-
- /*
- * Allocate the object using the list of free Tcl_Objs we maintain.
- */
-
- if (tclFreeObjList == NULL) {
- TclAllocateFreeObjects();
- }
- objPtr = tclFreeObjList;
- tclFreeObjList = (Tcl_Obj *) tclFreeObjList->internalRep.otherValuePtr;
-
- objPtr->refCount = 0;
- objPtr->bytes = tclEmptyStringRep;
- objPtr->length = 0;
- objPtr->typePtr = NULL;
- #ifdef TCL_COMPILE_STATS
- tclObjsAlloced++;
- #endif /* TCL_COMPILE_STATS */
- return objPtr;
- }
- #endif /* TCL_MEM_DEBUG */
-
- /*
- *----------------------------------------------------------------------
- *
- * Tcl_DbNewObj --
- *
- * This procedure is normally called when debugging: i.e., when
- * TCL_MEM_DEBUG is defined. It creates new Tcl objects that denote the
- * empty string. It is the same as the Tcl_NewObj procedure above
- * except that it calls Tcl_DbCkalloc directly with the file name and
- * line number from its caller. This simplifies debugging since then
- * the checkmem command will report the correct file name and line
- * number when reporting objects that haven't been freed.
- *
- * When TCL_MEM_DEBUG is not defined, this procedure just returns the
- * result of calling Tcl_NewObj.
- *
- * Results:
- * The result is a newly allocated that represents the empty string.
- * The new object's typePtr is set NULL and its ref count is set to 0.
- *
- * Side effects:
- * If compiling with TCL_COMPILE_STATS, this procedure increments
- * the global count of allocated objects (tclObjsAlloced).
- *
- *----------------------------------------------------------------------
- */
-
- #ifdef TCL_MEM_DEBUG
-
- Tcl_Obj *
- Tcl_DbNewObj(file, line)
- register char *file; /* The name of the source file calling this
- * procedure; used for debugging. */
- register int line; /* Line number in the source file; used
- * for debugging. */
- {
- register Tcl_Obj *objPtr;
-
- /*
- * If debugging Tcl's memory usage, allocate the object using ckalloc.
- * Otherwise, allocate it using the list of free Tcl_Objs we maintain.
- */
-
- objPtr = (Tcl_Obj *) Tcl_DbCkalloc(sizeof(Tcl_Obj), file, line);
- objPtr->refCount = 0;
- objPtr->bytes = tclEmptyStringRep;
- objPtr->length = 0;
- objPtr->typePtr = NULL;
- #ifdef TCL_COMPILE_STATS
- tclObjsAlloced++;
- #endif /* TCL_COMPILE_STATS */
- return objPtr;
- }
-
- #else /* if not TCL_MEM_DEBUG */
-
- Tcl_Obj *
- Tcl_DbNewObj(file, line)
- char *file; /* The name of the source file calling this
- * procedure; used for debugging. */
- int line; /* Line number in the source file; used
- * for debugging. */
- {
- return Tcl_NewObj();
- }
- #endif /* TCL_MEM_DEBUG */
-
- /*
- *----------------------------------------------------------------------
- *
- * TclAllocateFreeObjects --
- *
- * Procedure to allocate a number of free Tcl_Objs. This is done using
- * a single ckalloc to reduce the overhead for Tcl_Obj allocation.
- *
- * Results:
- * None.
- *
- * Side effects:
- * tclFreeObjList, the head of the list of free Tcl_Objs, is set to the
- * first of a number of free Tcl_Obj's linked together by their
- * internalRep.otherValuePtrs.
- *
- *----------------------------------------------------------------------
- */
-
- #define OBJS_TO_ALLOC_EACH_TIME 100
-
- void
- TclAllocateFreeObjects()
- {
- Tcl_Obj tmp[2];
- size_t objSizePlusPadding = /* NB: this assumes byte addressing. */
- ((int)(&(tmp[1])) - (int)(&(tmp[0])));
- size_t bytesToAlloc = (OBJS_TO_ALLOC_EACH_TIME * objSizePlusPadding);
- char *basePtr;
- register Tcl_Obj *prevPtr, *objPtr;
- register int i;
-
- basePtr = (char *) ckalloc(bytesToAlloc);
- memset(basePtr, 0, bytesToAlloc);
-
- prevPtr = NULL;
- objPtr = (Tcl_Obj *) basePtr;
- for (i = 0; i < OBJS_TO_ALLOC_EACH_TIME; i++) {
- objPtr->internalRep.otherValuePtr = (VOID *) prevPtr;
- prevPtr = objPtr;
- objPtr = (Tcl_Obj *) (((char *)objPtr) + objSizePlusPadding);
- }
- tclFreeObjList = prevPtr;
- }
- #undef OBJS_TO_ALLOC_EACH_TIME
-
- /*
- *----------------------------------------------------------------------
- *
- * TclFreeObj --
- *
- * This procedure frees the memory associated with the argument
- * object. It is called by the tcl.h macro Tcl_DecrRefCount when an
- * object's ref count is zero. It is only "public" since it must
- * be callable by that macro wherever the macro is used. It should not
- * be directly called by clients.
- *
- * Results:
- * None.
- *
- * Side effects:
- * Deallocates the storage for the object's Tcl_Obj structure
- * after deallocating the string representation and calling the
- * type-specific Tcl_FreeInternalRepProc to deallocate the object's
- * internal representation. If compiling with TCL_COMPILE_STATS,
- * this procedure increments the global count of freed objects
- * (tclObjsFreed).
- *
- *----------------------------------------------------------------------
- */
-
- void
- TclFreeObj(objPtr)
- register Tcl_Obj *objPtr; /* The object to be freed. */
- {
- register Tcl_ObjType *typePtr = objPtr->typePtr;
-
- #ifdef TCL_MEM_DEBUG
- if ((objPtr)->refCount < -1) {
- panic("Reference count for %lx was negative", objPtr);
- }
- #endif /* TCL_MEM_DEBUG */
-
- Tcl_InvalidateStringRep(objPtr);
- if ((typePtr != NULL) && (typePtr->freeIntRepProc != NULL)) {
- typePtr->freeIntRepProc(objPtr);
- }
-
- /*
- * If debugging Tcl's memory usage, deallocate the object using ckfree.
- * Otherwise, deallocate it by adding it onto the list of free
- * Tcl_Objs we maintain.
- */
-
- #ifdef TCL_MEM_DEBUG
- ckfree((char *) objPtr);
- #else
- objPtr->internalRep.otherValuePtr = (VOID *) tclFreeObjList;
- tclFreeObjList = objPtr;
- #endif /* TCL_MEM_DEBUG */
-
- #ifdef TCL_COMPILE_STATS
- tclObjsFreed++;
- #endif /* TCL_COMPILE_STATS */
- }
-
- /*
- *----------------------------------------------------------------------
- *
- * Tcl_DuplicateObj --
- *
- * Create and return a new object that is a duplicate of the argument
- * object.
- *
- * Results:
- * The return value is a pointer to a newly created Tcl_Obj. This
- * object has reference count 0 and the same type, if any, as the
- * source object objPtr. Also:
- * 1) If the source object has a valid string rep, we copy it;
- * otherwise, the duplicate's string rep is set NULL to mark
- * it invalid.
- * 2) If the source object has an internal representation (i.e. its
- * typePtr is non-NULL), the new object's internal rep is set to
- * a copy; otherwise the new internal rep is marked invalid.
- *
- * Side effects:
- * What constitutes "copying" the internal representation depends on
- * the type. For example, if the argument object is a list,
- * the element objects it points to will not actually be copied but
- * will be shared with the duplicate list. That is, the ref counts of
- * the element objects will be incremented.
- *
- *----------------------------------------------------------------------
- */
-
- Tcl_Obj *
- Tcl_DuplicateObj(objPtr)
- register Tcl_Obj *objPtr; /* The object to duplicate. */
- {
- register Tcl_ObjType *typePtr = objPtr->typePtr;
- register Tcl_Obj *dupPtr;
-
- TclNewObj(dupPtr);
-
- if (objPtr->bytes == NULL) {
- dupPtr->bytes = NULL;
- } else if (objPtr->bytes != tclEmptyStringRep) {
- int len = objPtr->length;
-
- dupPtr->bytes = (char *) ckalloc((unsigned) len+1);
- if (len > 0) {
- memcpy((VOID *) dupPtr->bytes, (VOID *) objPtr->bytes,
- (unsigned) len);
- }
- dupPtr->bytes[len] = '\0';
- dupPtr->length = len;
- }
-
- if (typePtr != NULL) {
- typePtr->dupIntRepProc(objPtr, dupPtr);
- }
- return dupPtr;
- }
-
- /*
- *----------------------------------------------------------------------
- *
- * Tcl_GetStringFromObj --
- *
- * Returns the string representation's byte array pointer and length
- * for an object.
- *
- * Results:
- * Returns a pointer to the string representation of objPtr. If
- * lengthPtr isn't NULL, the length of the string representation is
- * stored at *lengthPtr. The byte array referenced by the returned
- * pointer must not be modified by the caller. Furthermore, the
- * caller must copy the bytes if they need to retain them since the
- * object's string rep can change as a result of other operations.
- *
- * Side effects:
- * May call the object's updateStringProc to update the string
- * representation from the internal representation.
- *
- *----------------------------------------------------------------------
- */
-
- char *
- Tcl_GetStringFromObj(objPtr, lengthPtr)
- register Tcl_Obj *objPtr; /* Object whose string rep byte pointer
- * should be returned. */
- register int *lengthPtr; /* If non-NULL, the location where the
- * string rep's byte array length should be
- * stored. If NULL, no length is stored. */
- {
- if (objPtr->bytes != NULL) {
- if (lengthPtr != NULL) {
- *lengthPtr = objPtr->length;
- }
- return objPtr->bytes;
- }
-
- objPtr->typePtr->updateStringProc(objPtr);
- if (lengthPtr != NULL) {
- *lengthPtr = objPtr->length;
- }
- return objPtr->bytes;
- }
-
- /*
- *----------------------------------------------------------------------
- *
- * Tcl_InvalidateStringRep --
- *
- * This procedure is called to invalidate an object's string
- * representation.
- *
- * Results:
- * None.
- *
- * Side effects:
- * Deallocates the storage for any old string representation, then
- * sets the string representation NULL to mark it invalid.
- *
- *----------------------------------------------------------------------
- */
-
- void
- Tcl_InvalidateStringRep(objPtr)
- register Tcl_Obj *objPtr; /* Object whose string rep byte pointer
- * should be freed. */
- {
- if (objPtr->bytes != NULL) {
- if (objPtr->bytes != tclEmptyStringRep) {
- ckfree((char *) objPtr->bytes);
- }
- objPtr->bytes = NULL;
- }
- }
-
- /*
- *----------------------------------------------------------------------
- *
- * Tcl_NewBooleanObj --
- *
- * This procedure is normally called when not debugging: i.e., when
- * TCL_MEM_DEBUG is not defined. It creates a new boolean object and
- * initializes it from the argument boolean value. A nonzero
- * "boolValue" is coerced to 1.
- *
- * When TCL_MEM_DEBUG is defined, this procedure just returns the
- * result of calling the debugging version Tcl_DbNewBooleanObj.
- *
- * Results:
- * The newly created object is returned. This object will have an
- * invalid string representation. The returned object has ref count 0.
- *
- * Side effects:
- * None.
- *
- *----------------------------------------------------------------------
- */
-
- #ifdef TCL_MEM_DEBUG
- #undef Tcl_NewBooleanObj
-
- Tcl_Obj *
- Tcl_NewBooleanObj(boolValue)
- register int boolValue; /* Boolean used to initialize new object. */
- {
- return Tcl_DbNewBooleanObj(boolValue, "unknown", 0);
- }
-
- #else /* if not TCL_MEM_DEBUG */
-
- Tcl_Obj *
- Tcl_NewBooleanObj(boolValue)
- register int boolValue; /* Boolean used to initialize new object. */
- {
- register Tcl_Obj *objPtr;
-
- TclNewObj(objPtr);
- objPtr->bytes = NULL;
-
- objPtr->internalRep.longValue = (boolValue? 1 : 0);
- objPtr->typePtr = &tclBooleanType;
- return objPtr;
- }
- #endif /* TCL_MEM_DEBUG */
-
- /*
- *----------------------------------------------------------------------
- *
- * Tcl_DbNewBooleanObj --
- *
- * This procedure is normally called when debugging: i.e., when
- * TCL_MEM_DEBUG is defined. It creates new boolean objects. It is the
- * same as the Tcl_NewBooleanObj procedure above except that it calls
- * Tcl_DbCkalloc directly with the file name and line number from its
- * caller. This simplifies debugging since then the checkmem command
- * will report the correct file name and line number when reporting
- * objects that haven't been freed.
- *
- * When TCL_MEM_DEBUG is not defined, this procedure just returns the
- * result of calling Tcl_NewBooleanObj.
- *
- * Results:
- * The newly created object is returned. This object will have an
- * invalid string representation. The returned object has ref count 0.
- *
- * Side effects:
- * None.
- *
- *----------------------------------------------------------------------
- */
-
- #ifdef TCL_MEM_DEBUG
-
- Tcl_Obj *
- Tcl_DbNewBooleanObj(boolValue, file, line)
- register int boolValue; /* Boolean used to initialize new object. */
- char *file; /* The name of the source file calling this
- * procedure; used for debugging. */
- int line; /* Line number in the source file; used
- * for debugging. */
- {
- register Tcl_Obj *objPtr;
-
- TclDbNewObj(objPtr, file, line);
- objPtr->bytes = NULL;
-
- objPtr->internalRep.longValue = (boolValue? 1 : 0);
- objPtr->typePtr = &tclBooleanType;
- return objPtr;
- }
-
- #else /* if not TCL_MEM_DEBUG */
-
- Tcl_Obj *
- Tcl_DbNewBooleanObj(boolValue, file, line)
- register int boolValue; /* Boolean used to initialize new object. */
- char *file; /* The name of the source file calling this
- * procedure; used for debugging. */
- int line; /* Line number in the source file; used
- * for debugging. */
- {
- return Tcl_NewBooleanObj(boolValue);
- }
- #endif /* TCL_MEM_DEBUG */
-
- /*
- *----------------------------------------------------------------------
- *
- * Tcl_SetBooleanObj --
- *
- * Modify an object to be a boolean object and to have the specified
- * boolean value. A nonzero "boolValue" is coerced to 1.
- *
- * Results:
- * None.
- *
- * Side effects:
- * The object's old string rep, if any, is freed. Also, any old
- * internal rep is freed.
- *
- *----------------------------------------------------------------------
- */
-
- void
- Tcl_SetBooleanObj(objPtr, boolValue)
- register Tcl_Obj *objPtr; /* Object whose internal rep to init. */
- register int boolValue; /* Boolean used to set object's value. */
- {
- register Tcl_ObjType *oldTypePtr = objPtr->typePtr;
-
- if (Tcl_IsShared(objPtr)) {
- panic("Tcl_SetBooleanObj called with shared object");
- }
-
- Tcl_InvalidateStringRep(objPtr);
- if ((oldTypePtr != NULL) && (oldTypePtr->freeIntRepProc != NULL)) {
- oldTypePtr->freeIntRepProc(objPtr);
- }
-
- objPtr->internalRep.longValue = (boolValue? 1 : 0);
- objPtr->typePtr = &tclBooleanType;
- }
-
- /*
- *----------------------------------------------------------------------
- *
- * Tcl_GetBooleanFromObj --
- *
- * Attempt to return a boolean from the Tcl object "objPtr". If the
- * object is not already a boolean, an attempt will be made to convert
- * it to one.
- *
- * Results:
- * The return value is a standard Tcl object result. If an error occurs
- * during conversion, an error message is left in the interpreter's
- * result unless "interp" is NULL.
- *
- * Side effects:
- * If the object is not already a boolean, the conversion will free
- * any old internal representation.
- *
- *----------------------------------------------------------------------
- */
-
- int
- Tcl_GetBooleanFromObj(interp, objPtr, boolPtr)
- Tcl_Interp *interp; /* Used for error reporting if not NULL. */
- register Tcl_Obj *objPtr; /* The object from which to get boolean. */
- register int *boolPtr; /* Place to store resulting boolean. */
- {
- register int result;
-
- result = SetBooleanFromAny(interp, objPtr);
- if (result == TCL_OK) {
- *boolPtr = (int) objPtr->internalRep.longValue;
- }
- return result;
- }
-
- /*
- *----------------------------------------------------------------------
- *
- * DupBooleanInternalRep --
- *
- * Initialize the internal representation of a boolean Tcl_Obj to a
- * copy of the internal representation of an existing boolean object.
- *
- * Results:
- * None.
- *
- * Side effects:
- * "copyPtr"s internal rep is set to the boolean (an integer)
- * corresponding to "srcPtr"s internal rep.
- *
- *----------------------------------------------------------------------
- */
-
- static void
- DupBooleanInternalRep(srcPtr, copyPtr)
- register Tcl_Obj *srcPtr; /* Object with internal rep to copy. */
- register Tcl_Obj *copyPtr; /* Object with internal rep to set. */
- {
- copyPtr->internalRep.longValue = srcPtr->internalRep.longValue;
- copyPtr->typePtr = &tclBooleanType;
- }
-
- /*
- *----------------------------------------------------------------------
- *
- * SetBooleanFromAny --
- *
- * Attempt to generate a boolean internal form for the Tcl object
- * "objPtr".
- *
- * Results:
- * The return value is a standard Tcl result. If an error occurs during
- * conversion, an error message is left in the interpreter's result
- * unless "interp" is NULL.
- *
- * Side effects:
- * If no error occurs, an integer 1 or 0 is stored as "objPtr"s
- * internal representation and the type of "objPtr" is set to boolean.
- *
- *----------------------------------------------------------------------
- */
-
- static int
- SetBooleanFromAny(interp, objPtr)
- Tcl_Interp *interp; /* Used for error reporting if not NULL. */
- register Tcl_Obj *objPtr; /* The object to convert. */
- {
- Tcl_ObjType *oldTypePtr = objPtr->typePtr;
- char *string, *end;
- register char c;
- char lowerCase[10];
- int newBool, length;
- register int i;
- double dbl;
-
- /*
- * Get the string representation. Make it up-to-date if necessary.
- */
-
- string = TclGetStringFromObj(objPtr, &length);
-
- /*
- * Copy the string converting its characters to lower case.
- */
-
- for (i = 0; (i < 9) && (i < length); i++) {
- c = string[i];
- if (isupper(UCHAR(c))) {
- c = (char) tolower(UCHAR(c));
- }
- lowerCase[i] = c;
- }
- lowerCase[i] = 0;
-
- /*
- * Parse the string as a boolean. We use an implementation here that
- * doesn't report errors in interp if interp is NULL.
- */
-
- c = lowerCase[0];
- if ((c == '0') && (lowerCase[1] == '\0')) {
- newBool = 0;
- } else if ((c == '1') && (lowerCase[1] == '\0')) {
- newBool = 1;
- } else if ((c == 'y') && (strncmp(lowerCase, "yes", (size_t) length) == 0)) {
- newBool = 1;
- } else if ((c == 'n') && (strncmp(lowerCase, "no", (size_t) length) == 0)) {
- newBool = 0;
- } else if ((c == 't') && (strncmp(lowerCase, "true", (size_t) length) == 0)) {
- newBool = 1;
- } else if ((c == 'f') && (strncmp(lowerCase, "false", (size_t) length) == 0)) {
- newBool = 0;
- } else if ((c == 'o') && (length >= 2)) {
- if (strncmp(lowerCase, "on", (size_t) length) == 0) {
- newBool = 1;
- } else if (strncmp(lowerCase, "off", (size_t) length) == 0) {
- newBool = 0;
- } else {
- goto badBoolean;
- }
- } else {
- /*
- * Still might be a string containing the characters representing an
- * int or double that wasn't handled above. This would be a string
- * like "27" or "1.0" that is non-zero and not "1". Such a string
- * whould result in the boolean value true. We try converting to
- * double. If that succeeds and the resulting double is non-zero, we
- * have a "true". Note that numbers can't have embedded NULLs.
- */
-
- dbl = strtod(string, &end);
- if (end == string) {
- goto badBoolean;
- }
-
- /*
- * Make sure the string has no garbage after the end of the double.
- */
-
- while ((end < (string+length)) && isspace(UCHAR(*end))) {
- end++;
- }
- if (end != (string+length)) {
- goto badBoolean;
- }
- newBool = (dbl != 0.0);
- }
-
- /*
- * Free the old internalRep before setting the new one. We do this as
- * late as possible to allow the conversion code, in particular
- * Tcl_GetStringFromObj, to use that old internalRep.
- */
-
- if ((oldTypePtr != NULL) && (oldTypePtr->freeIntRepProc != NULL)) {
- oldTypePtr->freeIntRepProc(objPtr);
- }
-
- objPtr->internalRep.longValue = newBool;
- objPtr->typePtr = &tclBooleanType;
- return TCL_OK;
-
- badBoolean:
- if (interp != NULL) {
- /*
- * Must copy string before resetting the result in case a caller
- * is trying to convert the interpreter's result to a boolean.
- */
-
- char buf[100];
- sprintf(buf, "expected boolean value but got \"%.50s\"", string);
- Tcl_ResetResult(interp);
- Tcl_AppendToObj(Tcl_GetObjResult(interp), buf, -1);
- }
- return TCL_ERROR;
- }
-
- /*
- *----------------------------------------------------------------------
- *
- * UpdateStringOfBoolean --
- *
- * Update the string representation for a boolean object.
- * Note: This procedure does not free an existing old string rep
- * so storage will be lost if this has not already been done.
- *
- * Results:
- * None.
- *
- * Side effects:
- * The object's string is set to a valid string that results from
- * the boolean-to-string conversion.
- *
- *----------------------------------------------------------------------
- */
-
- static void
- UpdateStringOfBoolean(objPtr)
- register Tcl_Obj *objPtr; /* Int object whose string rep to update. */
- {
- char *s = ckalloc((unsigned) 2);
-
- s[0] = (char) (objPtr->internalRep.longValue? '1' : '0');
- s[1] = '\0';
- objPtr->bytes = s;
- objPtr->length = 1;
- }
-
- /*
- *----------------------------------------------------------------------
- *
- * Tcl_NewDoubleObj --
- *
- * This procedure is normally called when not debugging: i.e., when
- * TCL_MEM_DEBUG is not defined. It creates a new double object and
- * initializes it from the argument double value.
- *
- * When TCL_MEM_DEBUG is defined, this procedure just returns the
- * result of calling the debugging version Tcl_DbNewDoubleObj.
- *
- * Results:
- * The newly created object is returned. This object will have an
- * invalid string representation. The returned object has ref count 0.
- *
- * Side effects:
- * None.
- *
- *----------------------------------------------------------------------
- */
-
- #ifdef TCL_MEM_DEBUG
- #undef Tcl_NewDoubleObj
-
- Tcl_Obj *
- Tcl_NewDoubleObj(dblValue)
- register double dblValue; /* Double used to initialize the object. */
- {
- return Tcl_DbNewDoubleObj(dblValue, "unknown", 0);
- }
-
- #else /* if not TCL_MEM_DEBUG */
-
- Tcl_Obj *
- Tcl_NewDoubleObj(dblValue)
- register double dblValue; /* Double used to initialize the object. */
- {
- register Tcl_Obj *objPtr;
-
- TclNewObj(objPtr);
- objPtr->bytes = NULL;
-
- objPtr->internalRep.doubleValue = dblValue;
- objPtr->typePtr = &tclDoubleType;
- return objPtr;
- }
- #endif /* if TCL_MEM_DEBUG */
-
- /*
- *----------------------------------------------------------------------
- *
- * Tcl_DbNewDoubleObj --
- *
- * This procedure is normally called when debugging: i.e., when
- * TCL_MEM_DEBUG is defined. It creates new double objects. It is the
- * same as the Tcl_NewDoubleObj procedure above except that it calls
- * Tcl_DbCkalloc directly with the file name and line number from its
- * caller. This simplifies debugging since then the checkmem command
- * will report the correct file name and line number when reporting
- * objects that haven't been freed.
- *
- * When TCL_MEM_DEBUG is not defined, this procedure just returns the
- * result of calling Tcl_NewDoubleObj.
- *
- * Results:
- * The newly created object is returned. This object will have an
- * invalid string representation. The returned object has ref count 0.
- *
- * Side effects:
- * None.
- *
- *----------------------------------------------------------------------
- */
-
- #ifdef TCL_MEM_DEBUG
-
- Tcl_Obj *
- Tcl_DbNewDoubleObj(dblValue, file, line)
- register double dblValue; /* Double used to initialize the object. */
- char *file; /* The name of the source file calling this
- * procedure; used for debugging. */
- int line; /* Line number in the source file; used
- * for debugging. */
- {
- register Tcl_Obj *objPtr;
-
- TclDbNewObj(objPtr, file, line);
- objPtr->bytes = NULL;
-
- objPtr->internalRep.doubleValue = dblValue;
- objPtr->typePtr = &tclDoubleType;
- return objPtr;
- }
-
- #else /* if not TCL_MEM_DEBUG */
-
- Tcl_Obj *
- Tcl_DbNewDoubleObj(dblValue, file, line)
- register double dblValue; /* Double used to initialize the object. */
- char *file; /* The name of the source file calling this
- * procedure; used for debugging. */
- int line; /* Line number in the source file; used
- * for debugging. */
- {
- return Tcl_NewDoubleObj(dblValue);
- }
- #endif /* TCL_MEM_DEBUG */
-
- /*
- *----------------------------------------------------------------------
- *
- * Tcl_SetDoubleObj --
- *
- * Modify an object to be a double object and to have the specified
- * double value.
- *
- * Results:
- * None.
- *
- * Side effects:
- * The object's old string rep, if any, is freed. Also, any old
- * internal rep is freed.
- *
- *----------------------------------------------------------------------
- */
-
- void
- Tcl_SetDoubleObj(objPtr, dblValue)
- register Tcl_Obj *objPtr; /* Object whose internal rep to init. */
- register double dblValue; /* Double used to set the object's value. */
- {
- register Tcl_ObjType *oldTypePtr = objPtr->typePtr;
-
- if (Tcl_IsShared(objPtr)) {
- panic("Tcl_SetDoubleObj called with shared object");
- }
-
- Tcl_InvalidateStringRep(objPtr);
- if ((oldTypePtr != NULL) && (oldTypePtr->freeIntRepProc != NULL)) {
- oldTypePtr->freeIntRepProc(objPtr);
- }
-
- objPtr->internalRep.doubleValue = dblValue;
- objPtr->typePtr = &tclDoubleType;
- }
-
- /*
- *----------------------------------------------------------------------
- *
- * Tcl_GetDoubleFromObj --
- *
- * Attempt to return a double from the Tcl object "objPtr". If the
- * object is not already a double, an attempt will be made to convert
- * it to one.
- *
- * Results:
- * The return value is a standard Tcl object result. If an error occurs
- * during conversion, an error message is left in the interpreter's
- * result unless "interp" is NULL.
- *
- * Side effects:
- * If the object is not already a double, the conversion will free
- * any old internal representation.
- *
- *----------------------------------------------------------------------
- */
-
- int
- Tcl_GetDoubleFromObj(interp, objPtr, dblPtr)
- Tcl_Interp *interp; /* Used for error reporting if not NULL. */
- register Tcl_Obj *objPtr; /* The object from which to get a double. */
- register double *dblPtr; /* Place to store resulting double. */
- {
- register int result;
-
- if (objPtr->typePtr == &tclDoubleType) {
- *dblPtr = objPtr->internalRep.doubleValue;
- return TCL_OK;
- }
-
- result = SetDoubleFromAny(interp, objPtr);
- if (result == TCL_OK) {
- *dblPtr = objPtr->internalRep.doubleValue;
- }
- return result;
- }
-
- /*
- *----------------------------------------------------------------------
- *
- * DupDoubleInternalRep --
- *
- * Initialize the internal representation of a double Tcl_Obj to a
- * copy of the internal representation of an existing double object.
- *
- * Results:
- * None.
- *
- * Side effects:
- * "copyPtr"s internal rep is set to the double precision floating
- * point number corresponding to "srcPtr"s internal rep.
- *
- *----------------------------------------------------------------------
- */
-
- static void
- DupDoubleInternalRep(srcPtr, copyPtr)
- register Tcl_Obj *srcPtr; /* Object with internal rep to copy. */
- register Tcl_Obj *copyPtr; /* Object with internal rep to set. */
- {
- copyPtr->internalRep.doubleValue = srcPtr->internalRep.doubleValue;
- copyPtr->typePtr = &tclDoubleType;
- }
-
- /*
- *----------------------------------------------------------------------
- *
- * SetDoubleFromAny --
- *
- * Attempt to generate an double-precision floating point internal form
- * for the Tcl object "objPtr".
- *
- * Results:
- * The return value is a standard Tcl object result. If an error occurs
- * during conversion, an error message is left in the interpreter's
- * result unless "interp" is NULL.
- *
- * Side effects:
- * If no error occurs, a double is stored as "objPtr"s internal
- * representation.
- *
- *----------------------------------------------------------------------
- */
-
- static int
- SetDoubleFromAny(interp, objPtr)
- Tcl_Interp *interp; /* Used for error reporting if not NULL. */
- register Tcl_Obj *objPtr; /* The object to convert. */
- {
- Tcl_ObjType *oldTypePtr = objPtr->typePtr;
- char *string, *end;
- double newDouble;
- int length;
-
- /*
- * Get the string representation. Make it up-to-date if necessary.
- */
-
- string = TclGetStringFromObj(objPtr, &length);
-
- /*
- * Now parse "objPtr"s string as an double. Numbers can't have embedded
- * NULLs. We use an implementation here that doesn't report errors in
- * interp if interp is NULL.
- */
-
- errno = 0;
- newDouble = strtod(string, &end);
- if (end == string) {
- badDouble:
- if (interp != NULL) {
- /*
- * Must copy string before resetting the result in case a caller
- * is trying to convert the interpreter's result to an int.
- */
-
- char buf[100];
- sprintf(buf, "expected floating-point number but got \"%.50s\"",
- string);
- Tcl_ResetResult(interp);
- Tcl_AppendToObj(Tcl_GetObjResult(interp), buf, -1);
- }
- return TCL_ERROR;
- }
- if (errno != 0) {
- if (interp != NULL) {
- TclExprFloatError(interp, newDouble);
- }
- return TCL_ERROR;
- }
-
- /*
- * Make sure that the string has no garbage after the end of the double.
- */
-
- while ((end < (string+length)) && isspace(UCHAR(*end))) {
- end++;
- }
- if (end != (string+length)) {
- goto badDouble;
- }
-
- /*
- * The conversion to double succeeded. Free the old internalRep before
- * setting the new one. We do this as late as possible to allow the
- * conversion code, in particular Tcl_GetStringFromObj, to use that old
- * internalRep.
- */
-
- if ((oldTypePtr != NULL) && (oldTypePtr->freeIntRepProc != NULL)) {
- oldTypePtr->freeIntRepProc(objPtr);
- }
-
- objPtr->internalRep.doubleValue = newDouble;
- objPtr->typePtr = &tclDoubleType;
- return TCL_OK;
- }
-
- /*
- *----------------------------------------------------------------------
- *
- * UpdateStringOfDouble --
- *
- * Update the string representation for a double-precision floating
- * point object. This must obey the current tcl_precision value for
- * double-to-string conversions. Note: This procedure does not free an
- * existing old string rep so storage will be lost if this has not
- * already been done.
- *
- * Results:
- * None.
- *
- * Side effects:
- * The object's string is set to a valid string that results from
- * the double-to-string conversion.
- *
- *----------------------------------------------------------------------
- */
-
- static void
- UpdateStringOfDouble(objPtr)
- register Tcl_Obj *objPtr; /* Double obj with string rep to update. */
- {
- char buffer[TCL_DOUBLE_SPACE];
- register int len;
-
- Tcl_PrintDouble((Tcl_Interp *) NULL, objPtr->internalRep.doubleValue,
- buffer);
- len = strlen(buffer);
-
- objPtr->bytes = (char *) ckalloc((unsigned) len + 1);
- strcpy(objPtr->bytes, buffer);
- objPtr->length = len;
- }
-
- /*
- *----------------------------------------------------------------------
- *
- * Tcl_NewIntObj --
- *
- * If a client is compiled with TCL_MEM_DEBUG defined, calls to
- * Tcl_NewIntObj to create a new integer object end up calling the
- * debugging procedure Tcl_DbNewLongObj instead.
- *
- * Otherwise, if the client is compiled without TCL_MEM_DEBUG defined,
- * calls to Tcl_NewIntObj result in a call to one of the two
- * Tcl_NewIntObj implementations below. We provide two implementations
- * so that the Tcl core can be compiled to do memory debugging of the
- * core even if a client does not request it for itself.
- *
- * Integer and long integer objects share the same "integer" type
- * implementation. We store all integers as longs and Tcl_GetIntFromObj
- * checks whether the current value of the long can be represented by
- * an int.
- *
- * Results:
- * The newly created object is returned. This object will have an
- * invalid string representation. The returned object has ref count 0.
- *
- * Side effects:
- * None.
- *
- *----------------------------------------------------------------------
- */
-
- #ifdef TCL_MEM_DEBUG
- #undef Tcl_NewIntObj
-
- Tcl_Obj *
- Tcl_NewIntObj(intValue)
- register int intValue; /* Int used to initialize the new object. */
- {
- return Tcl_DbNewLongObj((long)intValue, "unknown", 0);
- }
-
- #else /* if not TCL_MEM_DEBUG */
-
- Tcl_Obj *
- Tcl_NewIntObj(intValue)
- register int intValue; /* Int used to initialize the new object. */
- {
- register Tcl_Obj *objPtr;
-
- TclNewObj(objPtr);
- objPtr->bytes = NULL;
-
- objPtr->internalRep.longValue = (long)intValue;
- objPtr->typePtr = &tclIntType;
- return objPtr;
- }
- #endif /* if TCL_MEM_DEBUG */
-
- /*
- *----------------------------------------------------------------------
- *
- * Tcl_SetIntObj --
- *
- * Modify an object to be an integer and to have the specified integer
- * value.
- *
- * Results:
- * None.
- *
- * Side effects:
- * The object's old string rep, if any, is freed. Also, any old
- * internal rep is freed.
- *
- *----------------------------------------------------------------------
- */
-
- void
- Tcl_SetIntObj(objPtr, intValue)
- register Tcl_Obj *objPtr; /* Object whose internal rep to init. */
- register int intValue; /* Integer used to set object's value. */
- {
- register Tcl_ObjType *oldTypePtr = objPtr->typePtr;
-
- if (Tcl_IsShared(objPtr)) {
- panic("Tcl_SetIntObj called with shared object");
- }
-
- Tcl_InvalidateStringRep(objPtr);
- if ((oldTypePtr != NULL) && (oldTypePtr->freeIntRepProc != NULL)) {
- oldTypePtr->freeIntRepProc(objPtr);
- }
-
- objPtr->internalRep.longValue = (long) intValue;
- objPtr->typePtr = &tclIntType;
- }
-
- /*
- *----------------------------------------------------------------------
- *
- * Tcl_GetIntFromObj --
- *
- * Attempt to return an int from the Tcl object "objPtr". If the object
- * is not already an int, an attempt will be made to convert it to one.
- *
- * Integer and long integer objects share the same "integer" type
- * implementation. We store all integers as longs and Tcl_GetIntFromObj
- * checks whether the current value of the long can be represented by
- * an int.
- *
- * Results:
- * The return value is a standard Tcl object result. If an error occurs
- * during conversion or if the long integer held by the object
- * can not be represented by an int, an error message is left in
- * the interpreter's result unless "interp" is NULL.
- *
- * Side effects:
- * If the object is not already an int, the conversion will free
- * any old internal representation.
- *
- *----------------------------------------------------------------------
- */
-
- int
- Tcl_GetIntFromObj(interp, objPtr, intPtr)
- Tcl_Interp *interp; /* Used for error reporting if not NULL. */
- register Tcl_Obj *objPtr; /* The object from which to get a int. */
- register int *intPtr; /* Place to store resulting int. */
- {
- register long l;
- int result;
-
- if (objPtr->typePtr != &tclIntType) {
- result = SetIntFromAny(interp, objPtr);
- if (result != TCL_OK) {
- return result;
- }
- }
- l = objPtr->internalRep.longValue;
- if (((long)((int)l)) == l) {
- *intPtr = (int)objPtr->internalRep.longValue;
- return TCL_OK;
- }
- if (interp != NULL) {
- Tcl_ResetResult(interp);
- Tcl_AppendToObj(Tcl_GetObjResult(interp),
- "integer value too large to represent as non-long integer", -1);
- }
- return TCL_ERROR;
- }
-
- /*
- *----------------------------------------------------------------------
- *
- * DupIntInternalRep --
- *
- * Initialize the internal representation of an int Tcl_Obj to a
- * copy of the internal representation of an existing int object.
- *
- * Results:
- * None.
- *
- * Side effects:
- * "copyPtr"s internal rep is set to the integer corresponding to
- * "srcPtr"s internal rep.
- *
- *----------------------------------------------------------------------
- */
-
- static void
- DupIntInternalRep(srcPtr, copyPtr)
- register Tcl_Obj *srcPtr; /* Object with internal rep to copy. */
- register Tcl_Obj *copyPtr; /* Object with internal rep to set. */
- {
- copyPtr->internalRep.longValue = srcPtr->internalRep.longValue;
- copyPtr->typePtr = &tclIntType;
- }
-
- /*
- *----------------------------------------------------------------------
- *
- * SetIntFromAny --
- *
- * Attempt to generate an integer internal form for the Tcl object
- * "objPtr".
- *
- * Results:
- * The return value is a standard object Tcl result. If an error occurs
- * during conversion, an error message is left in the interpreter's
- * result unless "interp" is NULL.
- *
- * Side effects:
- * If no error occurs, an int is stored as "objPtr"s internal
- * representation.
- *
- *----------------------------------------------------------------------
- */
-
- static int
- SetIntFromAny(interp, objPtr)
- Tcl_Interp *interp; /* Used for error reporting if not NULL. */
- register Tcl_Obj *objPtr; /* The object to convert. */
- {
- Tcl_ObjType *oldTypePtr = objPtr->typePtr;
- char *string, *end;
- int length;
- register char *p;
- long newLong;
-
- /*
- * Get the string representation. Make it up-to-date if necessary.
- */
-
- string = TclGetStringFromObj(objPtr, &length);
-
- /*
- * Now parse "objPtr"s string as an int. We use an implementation here
- * that doesn't report errors in interp if interp is NULL. Note: use
- * strtoul instead of strtol for integer conversions to allow full-size
- * unsigned numbers, but don't depend on strtoul to handle sign
- * characters; it won't in some implementations.
- */
-
- errno = 0;
- for (p = string; isspace(UCHAR(*p)); p++) {
- /* Empty loop body. */
- }
- if (*p == '-') {
- p++;
- newLong = -((long)strtoul(p, &end, 0));
- } else if (*p == '+') {
- p++;
- newLong = strtoul(p, &end, 0);
- } else {
- newLong = strtoul(p, &end, 0);
- }
- if (end == p) {
- badInteger:
- if (interp != NULL) {
- /*
- * Must copy string before resetting the result in case a caller
- * is trying to convert the interpreter's result to an int.
- */
-
- char buf[100];
- sprintf(buf, "expected integer but got \"%.50s\"", string);
- Tcl_ResetResult(interp);
- Tcl_AppendToObj(Tcl_GetObjResult(interp), buf, -1);
- }
- return TCL_ERROR;
- }
- if (errno == ERANGE) {
- if (interp != NULL) {
- char *s = "integer value too large to represent";
- Tcl_ResetResult(interp);
- Tcl_AppendToObj(Tcl_GetObjResult(interp), s, -1);
- Tcl_SetErrorCode(interp, "ARITH", "IOVERFLOW", s, (char *) NULL);
- }
- return TCL_ERROR;
- }
-
- /*
- * Make sure that the string has no garbage after the end of the int.
- */
-
- while ((end < (string+length)) && isspace(UCHAR(*end))) {
- end++;
- }
- if (end != (string+length)) {
- goto badInteger;
- }
-
- /*
- * The conversion to int succeeded. Free the old internalRep before
- * setting the new one. We do this as late as possible to allow the
- * conversion code, in particular Tcl_GetStringFromObj, to use that old
- * internalRep.
- */
-
- if ((oldTypePtr != NULL) && (oldTypePtr->freeIntRepProc != NULL)) {
- oldTypePtr->freeIntRepProc(objPtr);
- }
-
- objPtr->internalRep.longValue = newLong;
- objPtr->typePtr = &tclIntType;
- return TCL_OK;
- }
-
- /*
- *----------------------------------------------------------------------
- *
- * UpdateStringOfInt --
- *
- * Update the string representation for an integer object.
- * Note: This procedure does not free an existing old string rep
- * so storage will be lost if this has not already been done.
- *
- * Results:
- * None.
- *
- * Side effects:
- * The object's string is set to a valid string that results from
- * the int-to-string conversion.
- *
- *----------------------------------------------------------------------
- */
-
- static void
- UpdateStringOfInt(objPtr)
- register Tcl_Obj *objPtr; /* Int object whose string rep to update. */
- {
- char buffer[TCL_DOUBLE_SPACE];
- register int len;
-
- len = TclFormatInt(buffer, objPtr->internalRep.longValue);
-
- objPtr->bytes = ckalloc((unsigned) len + 1);
- strcpy(objPtr->bytes, buffer);
- objPtr->length = len;
- }
-
- /*
- *----------------------------------------------------------------------
- *
- * Tcl_NewLongObj --
- *
- * If a client is compiled with TCL_MEM_DEBUG defined, calls to
- * Tcl_NewLongObj to create a new long integer object end up calling
- * the debugging procedure Tcl_DbNewLongObj instead.
- *
- * Otherwise, if the client is compiled without TCL_MEM_DEBUG defined,
- * calls to Tcl_NewLongObj result in a call to one of the two
- * Tcl_NewLongObj implementations below. We provide two implementations
- * so that the Tcl core can be compiled to do memory debugging of the
- * core even if a client does not request it for itself.
- *
- * Integer and long integer objects share the same "integer" type
- * implementation. We store all integers as longs and Tcl_GetIntFromObj
- * checks whether the current value of the long can be represented by
- * an int.
- *
- * Results:
- * The newly created object is returned. This object will have an
- * invalid string representation. The returned object has ref count 0.
- *
- * Side effects:
- * None.
- *
- *----------------------------------------------------------------------
- */
-
- #ifdef TCL_MEM_DEBUG
- #undef Tcl_NewLongObj
-
- Tcl_Obj *
- Tcl_NewLongObj(longValue)
- register long longValue; /* Long integer used to initialize the
- * new object. */
- {
- return Tcl_DbNewLongObj(longValue, "unknown", 0);
- }
-
- #else /* if not TCL_MEM_DEBUG */
-
- Tcl_Obj *
- Tcl_NewLongObj(longValue)
- register long longValue; /* Long integer used to initialize the
- * new object. */
- {
- register Tcl_Obj *objPtr;
-
- TclNewObj(objPtr);
- objPtr->bytes = NULL;
-
- objPtr->internalRep.longValue = longValue;
- objPtr->typePtr = &tclIntType;
- return objPtr;
- }
- #endif /* if TCL_MEM_DEBUG */
-
- /*
- *----------------------------------------------------------------------
- *
- * Tcl_DbNewLongObj --
- *
- * If a client is compiled with TCL_MEM_DEBUG defined, calls to
- * Tcl_NewIntObj and Tcl_NewLongObj to create new integer or
- * long integer objects end up calling the debugging procedure
- * Tcl_DbNewLongObj instead. We provide two implementations of
- * Tcl_DbNewLongObj so that whether the Tcl core is compiled to do
- * memory debugging of the core is independent of whether a client
- * requests debugging for itself.
- *
- * When the core is compiled with TCL_MEM_DEBUG defined,
- * Tcl_DbNewLongObj calls Tcl_DbCkalloc directly with the file name and
- * line number from its caller. This simplifies debugging since then
- * the checkmem command will report the caller's file name and line
- * number when reporting objects that haven't been freed.
- *
- * Otherwise, when the core is compiled without TCL_MEM_DEBUG defined,
- * this procedure just returns the result of calling Tcl_NewLongObj.
- *
- * Results:
- * The newly created long integer object is returned. This object
- * will have an invalid string representation. The returned object has
- * ref count 0.
- *
- * Side effects:
- * Allocates memory.
- *
- *----------------------------------------------------------------------
- */
-
- #ifdef TCL_MEM_DEBUG
-
- Tcl_Obj *
- Tcl_DbNewLongObj(longValue, file, line)
- register long longValue; /* Long integer used to initialize the
- * new object. */
- char *file; /* The name of the source file calling this
- * procedure; used for debugging. */
- int line; /* Line number in the source file; used
- * for debugging. */
- {
- register Tcl_Obj *objPtr;
-
- TclDbNewObj(objPtr, file, line);
- objPtr->bytes = NULL;
-
- objPtr->internalRep.longValue = longValue;
- objPtr->typePtr = &tclIntType;
- return objPtr;
- }
-
- #else /* if not TCL_MEM_DEBUG */
-
- Tcl_Obj *
- Tcl_DbNewLongObj(longValue, file, line)
- register long longValue; /* Long integer used to initialize the
- * new object. */
- char *file; /* The name of the source file calling this
- * procedure; used for debugging. */
- int line; /* Line number in the source file; used
- * for debugging. */
- {
- return Tcl_NewLongObj(longValue);
- }
- #endif /* TCL_MEM_DEBUG */
-
- /*
- *----------------------------------------------------------------------
- *
- * Tcl_SetLongObj --
- *
- * Modify an object to be an integer object and to have the specified
- * long integer value.
- *
- * Results:
- * None.
- *
- * Side effects:
- * The object's old string rep, if any, is freed. Also, any old
- * internal rep is freed.
- *
- *----------------------------------------------------------------------
- */
-
- void
- Tcl_SetLongObj(objPtr, longValue)
- register Tcl_Obj *objPtr; /* Object whose internal rep to init. */
- register long longValue; /* Long integer used to initialize the
- * object's value. */
- {
- register Tcl_ObjType *oldTypePtr = objPtr->typePtr;
-
- if (Tcl_IsShared(objPtr)) {
- panic("Tcl_SetLongObj called with shared object");
- }
-
- Tcl_InvalidateStringRep(objPtr);
- if ((oldTypePtr != NULL) && (oldTypePtr->freeIntRepProc != NULL)) {
- oldTypePtr->freeIntRepProc(objPtr);
- }
-
- objPtr->internalRep.longValue = longValue;
- objPtr->typePtr = &tclIntType;
- }
-
- /*
- *----------------------------------------------------------------------
- *
- * Tcl_GetLongFromObj --
- *
- * Attempt to return an long integer from the Tcl object "objPtr". If
- * the object is not already an int object, an attempt will be made to
- * convert it to one.
- *
- * Results:
- * The return value is a standard Tcl object result. If an error occurs
- * during conversion, an error message is left in the interpreter's
- * result unless "interp" is NULL.
- *
- * Side effects:
- * If the object is not already an int object, the conversion will free
- * any old internal representation.
- *
- *----------------------------------------------------------------------
- */
-
- int
- Tcl_GetLongFromObj(interp, objPtr, longPtr)
- Tcl_Interp *interp; /* Used for error reporting if not NULL. */
- register Tcl_Obj *objPtr; /* The object from which to get a long. */
- register long *longPtr; /* Place to store resulting long. */
- {
- register int result;
-
- if (objPtr->typePtr == &tclIntType) {
- *longPtr = objPtr->internalRep.longValue;
- return TCL_OK;
- }
- result = SetIntFromAny(interp, objPtr);
- if (result == TCL_OK) {
- *longPtr = objPtr->internalRep.longValue;
- }
- return result;
- }
-
- /*
- *----------------------------------------------------------------------
- *
- * Tcl_DbIncrRefCount --
- *
- * This procedure is normally called when debugging: i.e., when
- * TCL_MEM_DEBUG is defined. This checks to see whether or not
- * the memory has been freed before incrementing the ref count.
- *
- * When TCL_MEM_DEBUG is not defined, this procedure just increments
- * the reference count of the object.
- *
- * Results:
- * None.
- *
- * Side effects:
- * The object's ref count is incremented.
- *
- *----------------------------------------------------------------------
- */
-
- void
- Tcl_DbIncrRefCount(objPtr, file, line)
- register Tcl_Obj *objPtr; /* The object we are adding a reference to. */
- char *file; /* The name of the source file calling this
- * procedure; used for debugging. */
- int line; /* Line number in the source file; used
- * for debugging. */
- {
- #ifdef TCL_MEM_DEBUG
- if (objPtr->refCount == 0x61616161) {
- fprintf(stderr, "file = %s, line = %d\n", file, line);
- fflush(stderr);
- panic("Trying to increment refCount of previously disposed object.");
- }
- #endif
- ++(objPtr)->refCount;
- }
-
- /*
- *----------------------------------------------------------------------
- *
- * Tcl_DbDecrRefCount --
- *
- * This procedure is normally called when debugging: i.e., when
- * TCL_MEM_DEBUG is defined. This checks to see whether or not
- * the memory has been freed before incrementing the ref count.
- *
- * When TCL_MEM_DEBUG is not defined, this procedure just increments
- * the reference count of the object.
- *
- * Results:
- * None.
- *
- * Side effects:
- * The object's ref count is incremented.
- *
- *----------------------------------------------------------------------
- */
-
- void
- Tcl_DbDecrRefCount(objPtr, file, line)
- register Tcl_Obj *objPtr; /* The object we are adding a reference to. */
- char *file; /* The name of the source file calling this
- * procedure; used for debugging. */
- int line; /* Line number in the source file; used
- * for debugging. */
- {
- #ifdef TCL_MEM_DEBUG
- if (objPtr->refCount == 0x61616161) {
- fprintf(stderr, "file = %s, line = %d\n", file, line);
- fflush(stderr);
- panic("Trying to increment refCount of previously disposed object.");
- }
- #endif
- if (--(objPtr)->refCount <= 0) {
- TclFreeObj(objPtr);
- }
- }
-
- /*
- *----------------------------------------------------------------------
- *
- * Tcl_DbIsShared --
- *
- * This procedure is normally called when debugging: i.e., when
- * TCL_MEM_DEBUG is defined. This checks to see whether or not
- * the memory has been freed before incrementing the ref count.
- *
- * When TCL_MEM_DEBUG is not defined, this procedure just decrements
- * the reference count of the object and throws it away if the count
- * is 0 or less.
- *
- * Results:
- * None.
- *
- * Side effects:
- * The object's ref count is incremented.
- *
- *----------------------------------------------------------------------
- */
-
- int
- Tcl_DbIsShared(objPtr, file, line)
- register Tcl_Obj *objPtr; /* The object we are adding a reference to. */
- char *file; /* The name of the source file calling this
- * procedure; used for debugging. */
- int line; /* Line number in the source file; used
- * for debugging. */
- {
- #ifdef TCL_MEM_DEBUG
- if (objPtr->refCount == 0x61616161) {
- fprintf(stderr, "file = %s, line = %d\n", file, line);
- fflush(stderr);
- panic("Trying to increment refCount of previously disposed object.");
- }
- #endif
- return ((objPtr)->refCount > 1);
- }
-