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-rw-r--r--generic/tclDictObj.c921
1 files changed, 720 insertions, 201 deletions
diff --git a/generic/tclDictObj.c b/generic/tclDictObj.c
index 4adc5ce..e31d708 100644
--- a/generic/tclDictObj.c
+++ b/generic/tclDictObj.c
@@ -4,7 +4,7 @@
* This file contains functions that implement the Tcl dict object type
* and its accessor command.
*
- * Copyright (c) 2002 by Donal K. Fellows.
+ * Copyright (c) 2002-2010 by Donal K. Fellows.
*
* See the file "license.terms" for information on usage and redistribution of
* this file, and for a DISCLAIMER OF ALL WARRANTIES.
@@ -31,8 +31,6 @@ static int DictExistsCmd(ClientData dummy, Tcl_Interp *interp,
int objc, Tcl_Obj *const *objv);
static int DictFilterCmd(ClientData dummy, Tcl_Interp *interp,
int objc, Tcl_Obj *const *objv);
-static int DictForCmd(ClientData dummy, Tcl_Interp *interp,
- int objc, Tcl_Obj *const *objv);
static int DictGetCmd(ClientData dummy, Tcl_Interp *interp,
int objc, Tcl_Obj *const *objv);
static int DictIncrCmd(ClientData dummy, Tcl_Interp *interp,
@@ -72,32 +70,45 @@ static inline void DeleteChainTable(struct Dict *dict);
static inline Tcl_HashEntry *CreateChainEntry(struct Dict *dict,
Tcl_Obj *keyPtr, int *newPtr);
static inline int DeleteChainEntry(struct Dict *dict, Tcl_Obj *keyPtr);
+static int FinalizeDictUpdate(ClientData data[],
+ Tcl_Interp *interp, int result);
+static int FinalizeDictWith(ClientData data[],
+ Tcl_Interp *interp, int result);
+static int DictForNRCmd(ClientData dummy, Tcl_Interp *interp,
+ int objc, Tcl_Obj *const *objv);
+static int DictMapNRCmd(ClientData dummy, Tcl_Interp *interp,
+ int objc, Tcl_Obj *const *objv);
+static int DictForLoopCallback(ClientData data[],
+ Tcl_Interp *interp, int result);
+static int DictMapLoopCallback(ClientData data[],
+ Tcl_Interp *interp, int result);
/*
* Table of dict subcommand names and implementations.
*/
static const EnsembleImplMap implementationMap[] = {
- {"append", DictAppendCmd, TclCompileDictAppendCmd },
- {"create", DictCreateCmd, NULL },
- {"exists", DictExistsCmd, NULL },
- {"filter", DictFilterCmd, NULL },
- {"for", DictForCmd, TclCompileDictForCmd },
- {"get", DictGetCmd, TclCompileDictGetCmd },
- {"incr", DictIncrCmd, TclCompileDictIncrCmd },
- {"info", DictInfoCmd, NULL },
- {"keys", DictKeysCmd, NULL },
- {"lappend", DictLappendCmd, TclCompileDictLappendCmd },
- {"merge", DictMergeCmd, NULL },
- {"remove", DictRemoveCmd, NULL },
- {"replace", DictReplaceCmd, NULL },
- {"set", DictSetCmd, TclCompileDictSetCmd },
- {"size", DictSizeCmd, NULL },
- {"unset", DictUnsetCmd, NULL },
- {"update", DictUpdateCmd, TclCompileDictUpdateCmd },
- {"values", DictValuesCmd, NULL },
- {"with", DictWithCmd, NULL },
- {NULL, NULL, NULL}
+ {"append", DictAppendCmd, TclCompileDictAppendCmd, NULL, NULL, 0 },
+ {"create", DictCreateCmd, TclCompileDictCreateCmd, NULL, NULL, 0 },
+ {"exists", DictExistsCmd, TclCompileDictExistsCmd, NULL, NULL, 0 },
+ {"filter", DictFilterCmd, NULL, NULL, NULL, 0 },
+ {"for", NULL, TclCompileDictForCmd, DictForNRCmd, NULL, 0 },
+ {"get", DictGetCmd, TclCompileDictGetCmd, NULL, NULL, 0 },
+ {"incr", DictIncrCmd, TclCompileDictIncrCmd, NULL, NULL, 0 },
+ {"info", DictInfoCmd, TclCompileBasic1ArgCmd, NULL, NULL, 0 },
+ {"keys", DictKeysCmd, TclCompileBasic1Or2ArgCmd, NULL, NULL, 0 },
+ {"lappend", DictLappendCmd, TclCompileDictLappendCmd, NULL, NULL, 0 },
+ {"map", NULL, TclCompileDictMapCmd, DictMapNRCmd, NULL, 0 },
+ {"merge", DictMergeCmd, TclCompileDictMergeCmd, NULL, NULL, 0 },
+ {"remove", DictRemoveCmd, TclCompileBasicMin1ArgCmd, NULL, NULL, 0 },
+ {"replace", DictReplaceCmd, NULL, NULL, NULL, 0 },
+ {"set", DictSetCmd, TclCompileDictSetCmd, NULL, NULL, 0 },
+ {"size", DictSizeCmd, TclCompileBasic1ArgCmd, NULL, NULL, 0 },
+ {"unset", DictUnsetCmd, TclCompileDictUnsetCmd, NULL, NULL, 0 },
+ {"update", DictUpdateCmd, TclCompileDictUpdateCmd, NULL, NULL, 0 },
+ {"values", DictValuesCmd, TclCompileBasic1Or2ArgCmd, NULL, NULL, 0 },
+ {"with", DictWithCmd, TclCompileDictWithCmd, NULL, NULL, 0 },
+ {NULL, NULL, NULL, NULL, NULL, 0}
};
/*
@@ -148,10 +159,10 @@ typedef struct Dict {
* functions that can be invoked by generic object code.
*/
-Tcl_ObjType tclDictType = {
+const Tcl_ObjType tclDictType = {
"dict",
FreeDictInternalRep, /* freeIntRepProc */
- DupDictInternalRep, /* dupIntRepProc */
+ DupDictInternalRep, /* dupIntRepProc */
UpdateStringOfDict, /* updateStringProc */
SetDictFromAny /* setFromAnyProc */
};
@@ -166,7 +177,7 @@ Tcl_ObjType tclDictType = {
* *this* file. Everything else should use the dict iterator API.
*/
-static Tcl_HashKeyType chainHashType = {
+static const Tcl_HashKeyType chainHashType = {
TCL_HASH_KEY_TYPE_VERSION,
0,
TclHashObjKey,
@@ -174,6 +185,23 @@ static Tcl_HashKeyType chainHashType = {
AllocChainEntry,
TclFreeObjEntry
};
+
+/*
+ * Structure used in implementation of 'dict map' to hold the state that gets
+ * passed between parts of the implementation.
+ */
+
+typedef struct {
+ Tcl_Obj *keyVarObj; /* The name of the variable that will have
+ * keys assigned to it. */
+ Tcl_Obj *valueVarObj; /* The name of the variable that will have
+ * values assigned to it. */
+ Tcl_DictSearch search; /* The dictionary search structure. */
+ Tcl_Obj *scriptObj; /* The script to evaluate each time through
+ * the loop. */
+ Tcl_Obj *accumulatorObj; /* The dictionary used to accumulate the
+ * results. */
+} DictMapStorage;
/***** START OF FUNCTIONS IMPLEMENTING DICT CORE API *****/
@@ -203,8 +231,8 @@ AllocChainEntry(
Tcl_Obj *objPtr = keyPtr;
ChainEntry *cPtr;
- cPtr = (ChainEntry *) ckalloc(sizeof(ChainEntry));
- cPtr->entry.key.oneWordValue = (char *) objPtr;
+ cPtr = ckalloc(sizeof(ChainEntry));
+ cPtr->entry.key.objPtr = objPtr;
Tcl_IncrRefCount(objPtr);
cPtr->entry.clientData = NULL;
cPtr->prevPtr = cPtr->nextPtr = NULL;
@@ -250,7 +278,7 @@ CreateChainEntry(
int *newPtr)
{
ChainEntry *cPtr = (ChainEntry *)
- Tcl_CreateHashEntry(&dict->table, (char *) keyPtr, newPtr);
+ Tcl_CreateHashEntry(&dict->table, keyPtr, newPtr);
/*
* If this is a new entry in the hash table, stitch it into the chain.
@@ -278,7 +306,7 @@ DeleteChainEntry(
Tcl_Obj *keyPtr)
{
ChainEntry *cPtr = (ChainEntry *)
- Tcl_FindHashEntry(&dict->table, (char *) keyPtr);
+ Tcl_FindHashEntry(&dict->table, keyPtr);
if (cPtr == NULL) {
return 0;
@@ -334,7 +362,7 @@ DupDictInternalRep(
Tcl_Obj *copyPtr)
{
Dict *oldDict = srcPtr->internalRep.twoPtrValue.ptr1;
- Dict *newDict = (Dict *) ckalloc(sizeof(Dict));
+ Dict *newDict = ckalloc(sizeof(Dict));
ChainEntry *cPtr;
/*
@@ -343,7 +371,7 @@ DupDictInternalRep(
InitChainTable(newDict);
for (cPtr=oldDict->entryChainHead ; cPtr!=NULL ; cPtr=cPtr->nextPtr) {
- void *key = Tcl_GetHashKey(&oldDict->table, &cPtr->entry);
+ Tcl_Obj *key = Tcl_GetHashKey(&oldDict->table, &cPtr->entry);
Tcl_Obj *valuePtr = Tcl_GetHashValue(&cPtr->entry);
int n;
Tcl_HashEntry *hPtr = CreateChainEntry(newDict, key, &n);
@@ -352,7 +380,7 @@ DupDictInternalRep(
* Fill in the contents.
*/
- Tcl_SetHashValue(hPtr, (ClientData) valuePtr);
+ Tcl_SetHashValue(hPtr, valuePtr);
Tcl_IncrRefCount(valuePtr);
}
@@ -396,7 +424,7 @@ FreeDictInternalRep(
{
Dict *dict = dictPtr->internalRep.twoPtrValue.ptr1;
- --dict->refcount;
+ dict->refcount--;
if (dict->refcount <= 0) {
DeleteDict(dict);
}
@@ -428,7 +456,7 @@ DeleteDict(
Dict *dict)
{
DeleteChainTable(dict);
- ckfree((char *) dict);
+ ckfree(dict);
}
/*
@@ -463,7 +491,8 @@ UpdateStringOfDict(
ChainEntry *cPtr;
Tcl_Obj *keyPtr, *valuePtr;
int i, length, bytesNeeded = 0;
- char *elem, *dst;
+ const char *elem;
+ char *dst;
const int maxFlags = UINT_MAX / sizeof(int);
/*
@@ -489,7 +518,7 @@ UpdateStringOfDict(
} else if (numElems > maxFlags) {
Tcl_Panic("max size for a Tcl value (%d bytes) exceeded", INT_MAX);
} else {
- flagPtr = (int *) ckalloc((unsigned) numElems*sizeof(int));
+ flagPtr = ckalloc(numElems * sizeof(int));
}
for (i=0,cPtr=dict->entryChainHead; i<numElems; i+=2,cPtr=cPtr->nextPtr) {
/*
@@ -498,7 +527,7 @@ UpdateStringOfDict(
*/
flagPtr[i] = ( i ? TCL_DONT_QUOTE_HASH : 0 );
- keyPtr = (Tcl_Obj *) Tcl_GetHashKey(&dict->table, &cPtr->entry);
+ keyPtr = Tcl_GetHashKey(&dict->table, &cPtr->entry);
elem = TclGetStringFromObj(keyPtr, &length);
bytesNeeded += TclScanElement(elem, length, flagPtr+i);
if (bytesNeeded < 0) {
@@ -523,11 +552,11 @@ UpdateStringOfDict(
*/
dictPtr->length = bytesNeeded - 1;
- dictPtr->bytes = ckalloc((unsigned) bytesNeeded);
+ dictPtr->bytes = ckalloc(bytesNeeded);
dst = dictPtr->bytes;
for (i=0,cPtr=dict->entryChainHead; i<numElems; i+=2,cPtr=cPtr->nextPtr) {
flagPtr[i] |= ( i ? TCL_DONT_QUOTE_HASH : 0 );
- keyPtr = (Tcl_Obj *) Tcl_GetHashKey(&dict->table, &cPtr->entry);
+ keyPtr = Tcl_GetHashKey(&dict->table, &cPtr->entry);
elem = TclGetStringFromObj(keyPtr, &length);
dst += TclConvertElement(elem, length, dst, flagPtr[i]);
*dst++ = ' ';
@@ -541,7 +570,7 @@ UpdateStringOfDict(
dictPtr->bytes[dictPtr->length] = '\0';
if (flagPtr != localFlags) {
- ckfree((char *) flagPtr);
+ ckfree(flagPtr);
}
}
@@ -572,7 +601,7 @@ SetDictFromAny(
{
Tcl_HashEntry *hPtr;
int isNew, result;
- Dict *dict = (Dict *) ckalloc(sizeof(Dict));
+ Dict *dict = ckalloc(sizeof(Dict));
InitChainTable(dict);
@@ -690,13 +719,18 @@ SetDictFromAny(
missingValue:
if (interp != NULL) {
- Tcl_SetResult(interp, "missing value to go with key", TCL_STATIC);
+ Tcl_SetObjResult(interp, Tcl_NewStringObj(
+ "missing value to go with key", -1));
+ Tcl_SetErrorCode(interp, "TCL", "VALUE", "DICTIONARY", NULL);
}
result = TCL_ERROR;
errorExit:
+ if (interp != NULL) {
+ Tcl_SetErrorCode(interp, "TCL", "VALUE", "DICTIONARY", NULL);
+ }
DeleteChainTable(dict);
- ckfree((char *) dict);
+ ckfree(dict);
return result;
}
@@ -754,7 +788,7 @@ TclTraceDictPath(
}
for (i=0 ; i<keyc ; i++) {
- Tcl_HashEntry *hPtr = Tcl_FindHashEntry(&dict->table, (char *)keyv[i]);
+ Tcl_HashEntry *hPtr = Tcl_FindHashEntry(&dict->table, keyv[i]);
Tcl_Obj *tmpObj;
if (hPtr == NULL) {
@@ -765,9 +799,9 @@ TclTraceDictPath(
}
if ((flags & DICT_PATH_CREATE) != DICT_PATH_CREATE) {
if (interp != NULL) {
- Tcl_ResetResult(interp);
- Tcl_AppendResult(interp, "key \"", TclGetString(keyv[i]),
- "\" not known in dictionary", NULL);
+ Tcl_SetObjResult(interp, Tcl_ObjPrintf(
+ "key \"%s\" not known in dictionary",
+ TclGetString(keyv[i])));
Tcl_SetErrorCode(interp, "TCL", "LOOKUP", "DICT",
TclGetString(keyv[i]), NULL);
}
@@ -797,7 +831,7 @@ TclTraceDictPath(
TclDecrRefCount(tmpObj);
tmpObj = Tcl_DuplicateObj(tmpObj);
Tcl_IncrRefCount(tmpObj);
- Tcl_SetHashValue(hPtr, (ClientData) tmpObj);
+ Tcl_SetHashValue(hPtr, tmpObj);
dict->epoch++;
newDict = tmpObj->internalRep.twoPtrValue.ptr1;
}
@@ -945,7 +979,7 @@ Tcl_DictObjGet(
}
dict = dictPtr->internalRep.twoPtrValue.ptr1;
- hPtr = Tcl_FindHashEntry(&dict->table, (char *) keyPtr);
+ hPtr = Tcl_FindHashEntry(&dict->table, keyPtr);
if (hPtr == NULL) {
*valuePtrPtr = NULL;
} else {
@@ -1102,8 +1136,7 @@ Tcl_DictObjFirst(
searchPtr->next = cPtr->nextPtr;
dict->refcount++;
if (keyPtrPtr != NULL) {
- *keyPtrPtr = (Tcl_Obj *) Tcl_GetHashKey(&dict->table,
- &cPtr->entry);
+ *keyPtrPtr = Tcl_GetHashKey(&dict->table, &cPtr->entry);
}
if (valuePtrPtr != NULL) {
*valuePtrPtr = Tcl_GetHashValue(&cPtr->entry);
@@ -1179,7 +1212,7 @@ Tcl_DictObjNext(
searchPtr->next = cPtr->nextPtr;
*donePtr = 0;
if (keyPtrPtr != NULL) {
- *keyPtrPtr = (Tcl_Obj *) Tcl_GetHashKey(
+ *keyPtrPtr = Tcl_GetHashKey(
&((Dict *)searchPtr->dictionaryPtr)->table, &cPtr->entry);
}
if (valuePtrPtr != NULL) {
@@ -1363,7 +1396,7 @@ Tcl_NewDictObj(void)
TclNewObj(dictPtr);
TclInvalidateStringRep(dictPtr);
- dict = (Dict *) ckalloc(sizeof(Dict));
+ dict = ckalloc(sizeof(Dict));
InitChainTable(dict);
dict->epoch = 0;
dict->chain = NULL;
@@ -1412,7 +1445,7 @@ Tcl_DbNewDictObj(
TclDbNewObj(dictPtr, file, line);
TclInvalidateStringRep(dictPtr);
- dict = (Dict *) ckalloc(sizeof(Dict));
+ dict = ckalloc(sizeof(Dict));
InitChainTable(dict);
dict->epoch = 0;
dict->chain = NULL;
@@ -1506,7 +1539,7 @@ DictGetCmd(
int result;
if (objc < 2) {
- Tcl_WrongNumArgs(interp, 1, objv, "dictionary ?key key ...?");
+ Tcl_WrongNumArgs(interp, 1, objv, "dictionary ?key ...?");
return TCL_ERROR;
}
@@ -1517,7 +1550,7 @@ DictGetCmd(
*/
if (objc == 2) {
- Tcl_Obj *keyPtr, *listPtr;
+ Tcl_Obj *keyPtr = NULL, *listPtr;
Tcl_DictSearch search;
int done;
@@ -1559,9 +1592,11 @@ DictGetCmd(
return result;
}
if (valuePtr == NULL) {
- Tcl_ResetResult(interp);
- Tcl_AppendResult(interp, "key \"", TclGetString(objv[objc-1]),
- "\" not known in dictionary", NULL);
+ Tcl_SetObjResult(interp, Tcl_ObjPrintf(
+ "key \"%s\" not known in dictionary",
+ TclGetString(objv[objc-1])));
+ Tcl_SetErrorCode(interp, "TCL", "LOOKUP", "DICT",
+ TclGetString(objv[objc-1]), NULL);
return TCL_ERROR;
}
Tcl_SetObjResult(interp, valuePtr);
@@ -1697,7 +1732,7 @@ DictMergeCmd(
int objc,
Tcl_Obj *const *objv)
{
- Tcl_Obj *targetObj, *keyObj, *valueObj;
+ Tcl_Obj *targetObj, *keyObj = NULL, *valueObj = NULL;
int allocatedDict = 0;
int i, done;
Tcl_DictSearch search;
@@ -1787,7 +1822,7 @@ DictKeysCmd(
Tcl_Obj *const *objv)
{
Tcl_Obj *listPtr;
- char *pattern = NULL;
+ const char *pattern = NULL;
if (objc!=2 && objc!=3) {
Tcl_WrongNumArgs(interp, 1, objv, "dictionary ?pattern?");
@@ -1821,8 +1856,8 @@ DictKeysCmd(
}
} else {
Tcl_DictSearch search;
- Tcl_Obj *keyPtr;
- int done;
+ Tcl_Obj *keyPtr = NULL;
+ int done = 0;
/*
* At this point, we know we have a dictionary (or at least something
@@ -1869,10 +1904,10 @@ DictValuesCmd(
int objc,
Tcl_Obj *const *objv)
{
- Tcl_Obj *valuePtr, *listPtr;
+ Tcl_Obj *valuePtr = NULL, *listPtr;
Tcl_DictSearch search;
int done;
- char *pattern;
+ const char *pattern;
if (objc!=2 && objc!=3) {
Tcl_WrongNumArgs(interp, 1, objv, "dictionary ?pattern?");
@@ -2013,6 +2048,7 @@ DictInfoCmd(
{
Tcl_Obj *dictPtr;
Dict *dict;
+ char *statsStr;
if (objc != 2) {
Tcl_WrongNumArgs(interp, 1, objv, "dictionary");
@@ -2028,11 +2064,9 @@ DictInfoCmd(
}
dict = dictPtr->internalRep.twoPtrValue.ptr1;
- /*
- * This next cast is actually OK.
- */
-
- Tcl_SetResult(interp, (char *) Tcl_HashStats(&dict->table), TCL_DYNAMIC);
+ statsStr = Tcl_HashStats(&dict->table);
+ Tcl_SetObjResult(interp, Tcl_NewStringObj(statsStr, -1));
+ ckfree(statsStr);
return TCL_OK;
}
@@ -2319,9 +2353,9 @@ DictAppendCmd(
/*
*----------------------------------------------------------------------
*
- * DictForCmd --
+ * DictForNRCmd --
*
- * This function implements the "dict for" Tcl command. See the user
+ * These functions implement the "dict for" Tcl command. See the user
* documentation for details on what it does, and TIP#111 for the formal
* specification.
*
@@ -2335,7 +2369,7 @@ DictAppendCmd(
*/
static int
-DictForCmd(
+DictForNRCmd(
ClientData dummy,
Tcl_Interp *interp,
int objc,
@@ -2344,8 +2378,8 @@ DictForCmd(
Interp *iPtr = (Interp *) interp;
Tcl_Obj *scriptObj, *keyVarObj, *valueVarObj;
Tcl_Obj **varv, *keyObj, *valueObj;
- Tcl_DictSearch search;
- int varc, done, result;
+ Tcl_DictSearch *searchPtr;
+ int varc, done;
if (objc != 4) {
Tcl_WrongNumArgs(interp, 1, objv,
@@ -2353,22 +2387,32 @@ DictForCmd(
return TCL_ERROR;
}
+ /*
+ * Parse arguments.
+ */
+
if (TclListObjGetElements(interp, objv[1], &varc, &varv) != TCL_OK) {
return TCL_ERROR;
}
if (varc != 2) {
- Tcl_SetResult(interp, "must have exactly two variable names",
- TCL_STATIC);
+ Tcl_SetObjResult(interp, Tcl_NewStringObj(
+ "must have exactly two variable names", -1));
return TCL_ERROR;
}
- keyVarObj = varv[0];
- valueVarObj = varv[1];
- scriptObj = objv[3];
-
- if (Tcl_DictObjFirst(interp, objv[2], &search, &keyObj, &valueObj,
+ searchPtr = TclStackAlloc(interp, sizeof(Tcl_DictSearch));
+ if (Tcl_DictObjFirst(interp, objv[2], searchPtr, &keyObj, &valueObj,
&done) != TCL_OK) {
+ TclStackFree(interp, searchPtr);
return TCL_ERROR;
}
+ if (done) {
+ TclStackFree(interp, searchPtr);
+ return TCL_OK;
+ }
+ TclListObjGetElements(NULL, objv[1], &varc, &varv);
+ keyVarObj = varv[0];
+ valueVarObj = varv[1];
+ scriptObj = objv[3];
/*
* Make sure that these objects (which we need throughout the body of the
@@ -2380,64 +2424,332 @@ DictForCmd(
Tcl_IncrRefCount(valueVarObj);
Tcl_IncrRefCount(scriptObj);
- result = TCL_OK;
- while (!done) {
- /*
- * Stop the value from getting hit in any way by any traces on the key
- * variable.
- */
+ /*
+ * Stop the value from getting hit in any way by any traces on the key
+ * variable.
+ */
- Tcl_IncrRefCount(valueObj);
- if (Tcl_ObjSetVar2(interp, keyVarObj, NULL, keyObj, 0) == NULL) {
- Tcl_ResetResult(interp);
- Tcl_AppendResult(interp, "couldn't set key variable: \"",
- TclGetString(keyVarObj), "\"", NULL);
- TclDecrRefCount(valueObj);
- result = TCL_ERROR;
- break;
- }
+ Tcl_IncrRefCount(valueObj);
+ if (Tcl_ObjSetVar2(interp, keyVarObj, NULL, keyObj, TCL_LEAVE_ERR_MSG) == NULL) {
TclDecrRefCount(valueObj);
- if (Tcl_ObjSetVar2(interp, valueVarObj, NULL, valueObj, 0) == NULL) {
- Tcl_ResetResult(interp);
- Tcl_AppendResult(interp, "couldn't set value variable: \"",
- TclGetString(valueVarObj), "\"", NULL);
- result = TCL_ERROR;
- break;
- }
+ goto error;
+ }
+ TclDecrRefCount(valueObj);
+ if (Tcl_ObjSetVar2(interp, valueVarObj, NULL, valueObj, TCL_LEAVE_ERR_MSG) == NULL) {
+ goto error;
+ }
- /*
- * TIP #280. Make invoking context available to loop body.
- */
+ /*
+ * Run the script.
+ */
+
+ TclNRAddCallback(interp, DictForLoopCallback, searchPtr, keyVarObj,
+ valueVarObj, scriptObj);
+ return TclNREvalObjEx(interp, scriptObj, 0, iPtr->cmdFramePtr, 3);
+
+ /*
+ * For unwinding everything on error.
+ */
+
+ error:
+ TclDecrRefCount(keyVarObj);
+ TclDecrRefCount(valueVarObj);
+ TclDecrRefCount(scriptObj);
+ Tcl_DictObjDone(searchPtr);
+ TclStackFree(interp, searchPtr);
+ return TCL_ERROR;
+}
- result = TclEvalObjEx(interp, scriptObj, 0, iPtr->cmdFramePtr, 3);
- if (result == TCL_CONTINUE) {
+static int
+DictForLoopCallback(
+ ClientData data[],
+ Tcl_Interp *interp,
+ int result)
+{
+ Interp *iPtr = (Interp *) interp;
+ Tcl_DictSearch *searchPtr = data[0];
+ Tcl_Obj *keyVarObj = data[1];
+ Tcl_Obj *valueVarObj = data[2];
+ Tcl_Obj *scriptObj = data[3];
+ Tcl_Obj *keyObj, *valueObj;
+ int done;
+
+ /*
+ * Process the result from the previous execution of the script body.
+ */
+
+ if (result == TCL_CONTINUE) {
+ result = TCL_OK;
+ } else if (result != TCL_OK) {
+ if (result == TCL_BREAK) {
+ Tcl_ResetResult(interp);
result = TCL_OK;
- } else if (result != TCL_OK) {
- if (result == TCL_BREAK) {
- result = TCL_OK;
- } else if (result == TCL_ERROR) {
- Tcl_AppendObjToErrorInfo(interp, Tcl_ObjPrintf(
- "\n (\"dict for\" body line %d)",
- interp->errorLine));
- }
- break;
+ } else if (result == TCL_ERROR) {
+ Tcl_AppendObjToErrorInfo(interp, Tcl_ObjPrintf(
+ "\n (\"dict for\" body line %d)",
+ Tcl_GetErrorLine(interp)));
}
+ goto done;
+ }
+
+ /*
+ * Get the next mapping from the dictionary.
+ */
+
+ Tcl_DictObjNext(searchPtr, &keyObj, &valueObj, &done);
+ if (done) {
+ Tcl_ResetResult(interp);
+ goto done;
+ }
- Tcl_DictObjNext(&search, &keyObj, &valueObj, &done);
+ /*
+ * Stop the value from getting hit in any way by any traces on the key
+ * variable.
+ */
+
+ Tcl_IncrRefCount(valueObj);
+ if (Tcl_ObjSetVar2(interp, keyVarObj, NULL, keyObj,
+ TCL_LEAVE_ERR_MSG) == NULL) {
+ TclDecrRefCount(valueObj);
+ result = TCL_ERROR;
+ goto done;
}
+ TclDecrRefCount(valueObj);
+ if (Tcl_ObjSetVar2(interp, valueVarObj, NULL, valueObj,
+ TCL_LEAVE_ERR_MSG) == NULL) {
+ result = TCL_ERROR;
+ goto done;
+ }
+
+ /*
+ * Run the script.
+ */
+
+ TclNRAddCallback(interp, DictForLoopCallback, searchPtr, keyVarObj,
+ valueVarObj, scriptObj);
+ return TclNREvalObjEx(interp, scriptObj, 0, iPtr->cmdFramePtr, 3);
/*
- * Stop holding a reference to these objects.
+ * For unwinding everything once the iterating is done.
*/
+ done:
TclDecrRefCount(keyVarObj);
TclDecrRefCount(valueVarObj);
TclDecrRefCount(scriptObj);
+ Tcl_DictObjDone(searchPtr);
+ TclStackFree(interp, searchPtr);
+ return result;
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * DictMapNRCmd --
+ *
+ * These functions implement the "dict map" Tcl command. See the user
+ * documentation for details on what it does, and TIP#405 for the formal
+ * specification.
+ *
+ * Results:
+ * A standard Tcl result.
+ *
+ * Side effects:
+ * See the user documentation.
+ *
+ *----------------------------------------------------------------------
+ */
- Tcl_DictObjDone(&search);
- if (result == TCL_OK) {
- Tcl_ResetResult(interp);
+static int
+DictMapNRCmd(
+ ClientData dummy,
+ Tcl_Interp *interp,
+ int objc,
+ Tcl_Obj *const *objv)
+{
+ Interp *iPtr = (Interp *) interp;
+ Tcl_Obj **varv, *keyObj, *valueObj;
+ DictMapStorage *storagePtr;
+ int varc, done;
+
+ if (objc != 4) {
+ Tcl_WrongNumArgs(interp, 1, objv,
+ "{keyVar valueVar} dictionary script");
+ return TCL_ERROR;
+ }
+
+ /*
+ * Parse arguments.
+ */
+
+ if (TclListObjGetElements(interp, objv[1], &varc, &varv) != TCL_OK) {
+ return TCL_ERROR;
+ }
+ if (varc != 2) {
+ Tcl_SetObjResult(interp, Tcl_NewStringObj(
+ "must have exactly two variable names", -1));
+ return TCL_ERROR;
+ }
+ storagePtr = TclStackAlloc(interp, sizeof(DictMapStorage));
+ if (Tcl_DictObjFirst(interp, objv[2], &storagePtr->search, &keyObj,
+ &valueObj, &done) != TCL_OK) {
+ TclStackFree(interp, storagePtr);
+ return TCL_ERROR;
+ }
+ if (done) {
+ /*
+ * Note that this exit leaves an empty value in the result (due to
+ * command calling conventions) but that is OK since an empty value is
+ * an empty dictionary.
+ */
+
+ TclStackFree(interp, storagePtr);
+ return TCL_OK;
+ }
+ TclNewObj(storagePtr->accumulatorObj);
+ TclListObjGetElements(NULL, objv[1], &varc, &varv);
+ storagePtr->keyVarObj = varv[0];
+ storagePtr->valueVarObj = varv[1];
+ storagePtr->scriptObj = objv[3];
+
+ /*
+ * Make sure that these objects (which we need throughout the body of the
+ * loop) don't vanish. Note that the dictionary internal rep is locked
+ * internally so that updates, shimmering, etc are not a problem.
+ */
+
+ Tcl_IncrRefCount(storagePtr->accumulatorObj);
+ Tcl_IncrRefCount(storagePtr->keyVarObj);
+ Tcl_IncrRefCount(storagePtr->valueVarObj);
+ Tcl_IncrRefCount(storagePtr->scriptObj);
+
+ /*
+ * Stop the value from getting hit in any way by any traces on the key
+ * variable.
+ */
+
+ Tcl_IncrRefCount(valueObj);
+ if (Tcl_ObjSetVar2(interp, storagePtr->keyVarObj, NULL, keyObj,
+ TCL_LEAVE_ERR_MSG) == NULL) {
+ TclDecrRefCount(valueObj);
+ goto error;
+ }
+ if (Tcl_ObjSetVar2(interp, storagePtr->valueVarObj, NULL, valueObj,
+ TCL_LEAVE_ERR_MSG) == NULL) {
+ TclDecrRefCount(valueObj);
+ goto error;
+ }
+ TclDecrRefCount(valueObj);
+
+ /*
+ * Run the script.
+ */
+
+ TclNRAddCallback(interp, DictMapLoopCallback, storagePtr, NULL,NULL,NULL);
+ return TclNREvalObjEx(interp, storagePtr->scriptObj, 0,
+ iPtr->cmdFramePtr, 3);
+
+ /*
+ * For unwinding everything on error.
+ */
+
+ error:
+ TclDecrRefCount(storagePtr->keyVarObj);
+ TclDecrRefCount(storagePtr->valueVarObj);
+ TclDecrRefCount(storagePtr->scriptObj);
+ TclDecrRefCount(storagePtr->accumulatorObj);
+ Tcl_DictObjDone(&storagePtr->search);
+ TclStackFree(interp, storagePtr);
+ return TCL_ERROR;
+}
+
+static int
+DictMapLoopCallback(
+ ClientData data[],
+ Tcl_Interp *interp,
+ int result)
+{
+ Interp *iPtr = (Interp *) interp;
+ DictMapStorage *storagePtr = data[0];
+ Tcl_Obj *keyObj, *valueObj;
+ int done;
+
+ /*
+ * Process the result from the previous execution of the script body.
+ */
+
+ if (result == TCL_CONTINUE) {
+ result = TCL_OK;
+ } else if (result != TCL_OK) {
+ if (result == TCL_BREAK) {
+ Tcl_ResetResult(interp);
+ result = TCL_OK;
+ } else if (result == TCL_ERROR) {
+ Tcl_AppendObjToErrorInfo(interp, Tcl_ObjPrintf(
+ "\n (\"dict map\" body line %d)",
+ Tcl_GetErrorLine(interp)));
+ }
+ goto done;
+ } else {
+ keyObj = Tcl_ObjGetVar2(interp, storagePtr->keyVarObj, NULL,
+ TCL_LEAVE_ERR_MSG);
+ if (keyObj == NULL) {
+ result = TCL_ERROR;
+ goto done;
+ }
+ Tcl_DictObjPut(NULL, storagePtr->accumulatorObj, keyObj,
+ Tcl_GetObjResult(interp));
}
+
+ /*
+ * Get the next mapping from the dictionary.
+ */
+
+ Tcl_DictObjNext(&storagePtr->search, &keyObj, &valueObj, &done);
+ if (done) {
+ Tcl_SetObjResult(interp, storagePtr->accumulatorObj);
+ goto done;
+ }
+
+ /*
+ * Stop the value from getting hit in any way by any traces on the key
+ * variable.
+ */
+
+ Tcl_IncrRefCount(valueObj);
+ if (Tcl_ObjSetVar2(interp, storagePtr->keyVarObj, NULL, keyObj,
+ TCL_LEAVE_ERR_MSG) == NULL) {
+ TclDecrRefCount(valueObj);
+ result = TCL_ERROR;
+ goto done;
+ }
+ if (Tcl_ObjSetVar2(interp, storagePtr->valueVarObj, NULL, valueObj,
+ TCL_LEAVE_ERR_MSG) == NULL) {
+ TclDecrRefCount(valueObj);
+ result = TCL_ERROR;
+ goto done;
+ }
+ TclDecrRefCount(valueObj);
+
+ /*
+ * Run the script.
+ */
+
+ TclNRAddCallback(interp, DictMapLoopCallback, storagePtr, NULL,NULL,NULL);
+ return TclNREvalObjEx(interp, storagePtr->scriptObj, 0,
+ iPtr->cmdFramePtr, 3);
+
+ /*
+ * For unwinding everything once the iterating is done.
+ */
+
+ done:
+ TclDecrRefCount(storagePtr->keyVarObj);
+ TclDecrRefCount(storagePtr->valueVarObj);
+ TclDecrRefCount(storagePtr->scriptObj);
+ TclDecrRefCount(storagePtr->accumulatorObj);
+ Tcl_DictObjDone(&storagePtr->search);
+ TclStackFree(interp, storagePtr);
return result;
}
@@ -2586,20 +2898,20 @@ DictFilterCmd(
Tcl_Obj *const *objv)
{
Interp *iPtr = (Interp *) interp;
- static const char *filters[] = {
+ static const char *const filters[] = {
"key", "script", "value", NULL
};
enum FilterTypes {
FILTER_KEYS, FILTER_SCRIPT, FILTER_VALUES
};
Tcl_Obj *scriptObj, *keyVarObj, *valueVarObj;
- Tcl_Obj **varv, *keyObj, *valueObj, *resultObj, *boolObj;
+ Tcl_Obj **varv, *keyObj = NULL, *valueObj = NULL, *resultObj, *boolObj;
Tcl_DictSearch search;
int index, varc, done, result, satisfied;
- char *pattern;
+ const char *pattern;
if (objc < 3) {
- Tcl_WrongNumArgs(interp, 1, objv, "dictionary filterType ...");
+ Tcl_WrongNumArgs(interp, 1, objv, "dictionary filterType ?arg ...?");
return TCL_ERROR;
}
if (Tcl_GetIndexFromObj(interp, objv[2], filters, "filterType",
@@ -2609,11 +2921,6 @@ DictFilterCmd(
switch ((enum FilterTypes) index) {
case FILTER_KEYS:
- if (objc != 4) {
- Tcl_WrongNumArgs(interp, 1, objv, "dictionary key globPattern");
- return TCL_ERROR;
- }
-
/*
* Create a dictionary whose keys all match a certain pattern.
*/
@@ -2622,23 +2929,52 @@ DictFilterCmd(
&keyObj, &valueObj, &done) != TCL_OK) {
return TCL_ERROR;
}
- pattern = TclGetString(objv[3]);
- resultObj = Tcl_NewDictObj();
- if (TclMatchIsTrivial(pattern)) {
+ if (objc == 3) {
/*
- * Must release the search lock here to prevent a memory leak
- * since we are not exhausing the search. [Bug 1705778, leak K05]
+ * Nothing to match, so return nothing (== empty dictionary).
*/
Tcl_DictObjDone(&search);
- Tcl_DictObjGet(interp, objv[1], objv[3], &valueObj);
- if (valueObj != NULL) {
- Tcl_DictObjPut(interp, resultObj, objv[3], valueObj);
+ return TCL_OK;
+ } else if (objc == 4) {
+ pattern = TclGetString(objv[3]);
+ resultObj = Tcl_NewDictObj();
+ if (TclMatchIsTrivial(pattern)) {
+ /*
+ * Must release the search lock here to prevent a memory leak
+ * since we are not exhausing the search. [Bug 1705778, leak
+ * K05]
+ */
+
+ Tcl_DictObjDone(&search);
+ Tcl_DictObjGet(interp, objv[1], objv[3], &valueObj);
+ if (valueObj != NULL) {
+ Tcl_DictObjPut(interp, resultObj, objv[3], valueObj);
+ }
+ } else {
+ while (!done) {
+ if (Tcl_StringMatch(TclGetString(keyObj), pattern)) {
+ Tcl_DictObjPut(interp, resultObj, keyObj, valueObj);
+ }
+ Tcl_DictObjNext(&search, &keyObj, &valueObj, &done);
+ }
}
} else {
+ /*
+ * Can't optimize this match for trivial globbing: would disturb
+ * order.
+ */
+
+ resultObj = Tcl_NewDictObj();
while (!done) {
- if (Tcl_StringMatch(TclGetString(keyObj), pattern)) {
- Tcl_DictObjPut(interp, resultObj, keyObj, valueObj);
+ int i;
+
+ for (i=3 ; i<objc ; i++) {
+ pattern = TclGetString(objv[i]);
+ if (Tcl_StringMatch(TclGetString(keyObj), pattern)) {
+ Tcl_DictObjPut(interp, resultObj, keyObj, valueObj);
+ break; /* stop inner loop */
+ }
}
Tcl_DictObjNext(&search, &keyObj, &valueObj, &done);
}
@@ -2647,11 +2983,6 @@ DictFilterCmd(
return TCL_OK;
case FILTER_VALUES:
- if (objc != 4) {
- Tcl_WrongNumArgs(interp, 1, objv, "dictionary value globPattern");
- return TCL_ERROR;
- }
-
/*
* Create a dictionary whose values all match a certain pattern.
*/
@@ -2660,11 +2991,16 @@ DictFilterCmd(
&keyObj, &valueObj, &done) != TCL_OK) {
return TCL_ERROR;
}
- pattern = TclGetString(objv[3]);
resultObj = Tcl_NewDictObj();
while (!done) {
- if (Tcl_StringMatch(TclGetString(valueObj), pattern)) {
- Tcl_DictObjPut(interp, resultObj, keyObj, valueObj);
+ int i;
+
+ for (i=3 ; i<objc ; i++) {
+ pattern = TclGetString(objv[i]);
+ if (Tcl_StringMatch(TclGetString(valueObj), pattern)) {
+ Tcl_DictObjPut(interp, resultObj, keyObj, valueObj);
+ break; /* stop inner loop */
+ }
}
Tcl_DictObjNext(&search, &keyObj, &valueObj, &done);
}
@@ -2688,8 +3024,8 @@ DictFilterCmd(
return TCL_ERROR;
}
if (varc != 2) {
- Tcl_SetResult(interp, "must have exactly two variable names",
- TCL_STATIC);
+ Tcl_SetObjResult(interp, Tcl_NewStringObj(
+ "must have exactly two variable names", -1));
return TCL_ERROR;
}
keyVarObj = varv[0];
@@ -2729,16 +3065,19 @@ DictFilterCmd(
if (Tcl_ObjSetVar2(interp, keyVarObj, NULL, keyObj,
TCL_LEAVE_ERR_MSG) == NULL) {
Tcl_ResetResult(interp);
- Tcl_AppendResult(interp, "couldn't set key variable: \"",
- TclGetString(keyVarObj), "\"", NULL);
+ Tcl_SetObjResult(interp, Tcl_ObjPrintf(
+ "couldn't set key variable: \"%s\"",
+ TclGetString(keyVarObj)));
result = TCL_ERROR;
goto abnormalResult;
}
if (Tcl_ObjSetVar2(interp, valueVarObj, NULL, valueObj,
TCL_LEAVE_ERR_MSG) == NULL) {
Tcl_ResetResult(interp);
- Tcl_AppendResult(interp, "couldn't set value variable: \"",
- TclGetString(valueVarObj), "\"", NULL);
+ Tcl_SetObjResult(interp, Tcl_ObjPrintf(
+ "couldn't set value variable: \"%s\"",
+ TclGetString(valueVarObj)));
+ result = TCL_ERROR;
goto abnormalResult;
}
@@ -2778,7 +3117,7 @@ DictFilterCmd(
case TCL_ERROR:
Tcl_AppendObjToErrorInfo(interp, Tcl_ObjPrintf(
"\n (\"dict filter\" script line %d)",
- interp->errorLine));
+ Tcl_GetErrorLine(interp)));
default:
goto abnormalResult;
}
@@ -2847,8 +3186,7 @@ DictUpdateCmd(
{
Interp *iPtr = (Interp *) interp;
Tcl_Obj *dictPtr, *objPtr;
- int i, result, dummy;
- Tcl_InterpState state;
+ int i, dummy;
if (objc < 5 || !(objc & 1)) {
Tcl_WrongNumArgs(interp, 1, objv,
@@ -2881,10 +3219,34 @@ DictUpdateCmd(
TclDecrRefCount(dictPtr);
/*
- * Execute the body.
+ * Execute the body after setting up the NRE handler to process the
+ * results.
+ */
+
+ objPtr = Tcl_NewListObj(objc-3, objv+2);
+ Tcl_IncrRefCount(objPtr);
+ Tcl_IncrRefCount(objv[1]);
+ TclNRAddCallback(interp, FinalizeDictUpdate, objv[1], objPtr, NULL,NULL);
+
+ return TclNREvalObjEx(interp, objv[objc-1], 0, iPtr->cmdFramePtr, objc-1);
+}
+
+static int
+FinalizeDictUpdate(
+ ClientData data[],
+ Tcl_Interp *interp,
+ int result)
+{
+ Tcl_Obj *dictPtr, *objPtr, **objv;
+ Tcl_InterpState state;
+ int i, objc;
+ Tcl_Obj *varName = data[0];
+ Tcl_Obj *argsObj = data[1];
+
+ /*
+ * ErrorInfo handling.
*/
- result = TclEvalObjEx(interp, objv[objc-1], 0, iPtr->cmdFramePtr, objc-1);
if (result == TCL_ERROR) {
Tcl_AddErrorInfo(interp, "\n (body of \"dict update\")");
}
@@ -2893,8 +3255,10 @@ DictUpdateCmd(
* If the dictionary variable doesn't exist, drop everything silently.
*/
- dictPtr = Tcl_ObjGetVar2(interp, objv[1], NULL, 0);
+ dictPtr = Tcl_ObjGetVar2(interp, varName, NULL, 0);
if (dictPtr == NULL) {
+ TclDecrRefCount(varName);
+ TclDecrRefCount(argsObj);
return result;
}
@@ -2903,8 +3267,10 @@ DictUpdateCmd(
*/
state = Tcl_SaveInterpState(interp, result);
- if (Tcl_DictObjSize(interp, dictPtr, &dummy) != TCL_OK) {
+ if (Tcl_DictObjSize(interp, dictPtr, &objc) != TCL_OK) {
Tcl_DiscardInterpState(state);
+ TclDecrRefCount(varName);
+ TclDecrRefCount(argsObj);
return TCL_ERROR;
}
@@ -2917,7 +3283,8 @@ DictUpdateCmd(
* an instruction to remove the key.
*/
- for (i=2 ; i+2<objc ; i+=2) {
+ Tcl_ListObjGetElements(NULL, argsObj, &objc, &objv);
+ for (i=0 ; i<objc ; i+=2) {
objPtr = Tcl_ObjGetVar2(interp, objv[i+1], NULL, 0);
if (objPtr == NULL) {
Tcl_DictObjRemove(interp, dictPtr, objv[i]);
@@ -2934,17 +3301,20 @@ DictUpdateCmd(
Tcl_DictObjPut(interp, dictPtr, objv[i], objPtr);
}
}
+ TclDecrRefCount(argsObj);
/*
* Write the dictionary back to its variable.
*/
- if (Tcl_ObjSetVar2(interp, objv[1], NULL, dictPtr,
+ if (Tcl_ObjSetVar2(interp, varName, NULL, dictPtr,
TCL_LEAVE_ERR_MSG) == NULL) {
Tcl_DiscardInterpState(state);
+ TclDecrRefCount(varName);
return TCL_ERROR;
}
+ TclDecrRefCount(varName);
return Tcl_RestoreInterpState(interp, state);
}
@@ -2974,10 +3344,7 @@ DictWithCmd(
Tcl_Obj *const *objv)
{
Interp *iPtr = (Interp *) interp;
- Tcl_Obj *dictPtr, *keysPtr, *keyPtr, *valPtr, **keyv, *leafPtr;
- Tcl_DictSearch s;
- Tcl_InterpState state;
- int done, result, keyc, i, allocdict = 0;
+ Tcl_Obj *dictPtr, *keysPtr, *pathPtr;
if (objc < 3) {
Tcl_WrongNumArgs(interp, 1, objv, "dictVar ?key ...? script");
@@ -2992,11 +3359,126 @@ DictWithCmd(
if (dictPtr == NULL) {
return TCL_ERROR;
}
+
+ keysPtr = TclDictWithInit(interp, dictPtr, objc-3, objv+2);
+ if (keysPtr == NULL) {
+ return TCL_ERROR;
+ }
+ Tcl_IncrRefCount(keysPtr);
+
+ /*
+ * Execute the body, while making the invoking context available to the
+ * loop body (TIP#280) and postponing the cleanup until later (NRE).
+ */
+
+ pathPtr = NULL;
if (objc > 3) {
- dictPtr = TclTraceDictPath(interp, dictPtr, objc-3, objv+2,
+ pathPtr = Tcl_NewListObj(objc-3, objv+2);
+ Tcl_IncrRefCount(pathPtr);
+ }
+ Tcl_IncrRefCount(objv[1]);
+ TclNRAddCallback(interp, FinalizeDictWith, objv[1], keysPtr, pathPtr,
+ NULL);
+
+ return TclNREvalObjEx(interp, objv[objc-1], 0, iPtr->cmdFramePtr, objc-1);
+}
+
+static int
+FinalizeDictWith(
+ ClientData data[],
+ Tcl_Interp *interp,
+ int result)
+{
+ Tcl_Obj **pathv;
+ int pathc;
+ Tcl_InterpState state;
+ Tcl_Obj *varName = data[0];
+ Tcl_Obj *keysPtr = data[1];
+ Tcl_Obj *pathPtr = data[2];
+ Var *varPtr, *arrayPtr;
+
+ if (result == TCL_ERROR) {
+ Tcl_AddErrorInfo(interp, "\n (body of \"dict with\")");
+ }
+
+ /*
+ * Save the result state; TDWF doesn't guarantee to not modify that on
+ * TCL_OK result.
+ */
+
+ state = Tcl_SaveInterpState(interp, result);
+ if (pathPtr != NULL) {
+ Tcl_ListObjGetElements(NULL, pathPtr, &pathc, &pathv);
+ } else {
+ pathc = 0;
+ pathv = NULL;
+ }
+
+ /*
+ * Pack from local variables back into the dictionary.
+ */
+
+ varPtr = TclObjLookupVarEx(interp, varName, NULL, TCL_LEAVE_ERR_MSG, "set",
+ /*createPart1*/ 1, /*createPart2*/ 1, &arrayPtr);
+ if (varPtr == NULL) {
+ result = TCL_ERROR;
+ } else {
+ result = TclDictWithFinish(interp, varPtr, arrayPtr, varName, NULL, -1,
+ pathc, pathv, keysPtr);
+ }
+
+ /*
+ * Tidy up and return the real result (unless we had an error).
+ */
+
+ TclDecrRefCount(varName);
+ TclDecrRefCount(keysPtr);
+ if (pathPtr != NULL) {
+ TclDecrRefCount(pathPtr);
+ }
+ if (result != TCL_OK) {
+ Tcl_DiscardInterpState(state);
+ return TCL_ERROR;
+ }
+ return Tcl_RestoreInterpState(interp, state);
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * TclDictWithInit --
+ *
+ * Part of the core of [dict with]. Pokes into a dictionary and converts
+ * the mappings there into assignments to (presumably) local variables.
+ * Returns a list of all the names that were mapped so that removal of
+ * either the variable or the dictionary entry won't surprise us when we
+ * come to stuffing everything back.
+ *
+ * Result:
+ * List of mapped names, or NULL if there was an error.
+ *
+ * Side effects:
+ * Assigns to variables, so potentially legion due to traces.
+ *
+ *----------------------------------------------------------------------
+ */
+
+Tcl_Obj *
+TclDictWithInit(
+ Tcl_Interp *interp,
+ Tcl_Obj *dictPtr,
+ int pathc,
+ Tcl_Obj *const pathv[])
+{
+ Tcl_DictSearch s;
+ Tcl_Obj *keyPtr, *valPtr, *keysPtr;
+ int done;
+
+ if (pathc > 0) {
+ dictPtr = TclTraceDictPath(interp, dictPtr, pathc, pathv,
DICT_PATH_READ);
if (dictPtr == NULL) {
- return TCL_ERROR;
+ return NULL;
}
}
@@ -3009,11 +3491,10 @@ DictWithCmd(
if (Tcl_DictObjFirst(interp, dictPtr, &s, &keyPtr, &valPtr,
&done) != TCL_OK) {
- return TCL_ERROR;
+ return NULL;
}
TclNewObj(keysPtr);
- Tcl_IncrRefCount(keysPtr);
for (; !done ; Tcl_DictObjNext(&s, &keyPtr, &valPtr, &done)) {
Tcl_ListObjAppendElement(NULL, keysPtr, keyPtr);
@@ -3021,47 +3502,87 @@ DictWithCmd(
TCL_LEAVE_ERR_MSG) == NULL) {
TclDecrRefCount(keysPtr);
Tcl_DictObjDone(&s);
- return TCL_ERROR;
+ return NULL;
}
}
- /*
- * Execute the body, while making the invoking context available to the
- * loop body (TIP#280).
- */
+ return keysPtr;
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * TclDictWithFinish --
+ *
+ * Part of the core of [dict with]. Reassembles the piece of the dict (in
+ * varName, location given by pathc/pathv) from the variables named in
+ * the keysPtr argument. NB, does not try to preserve errors or manage
+ * argument lifetimes.
+ *
+ * Result:
+ * TCL_OK if we succeeded, or TCL_ERROR if we failed.
+ *
+ * Side effects:
+ * Assigns to a variable, so potentially legion due to traces. Updates
+ * the dictionary in the named variable.
+ *
+ *----------------------------------------------------------------------
+ */
- result = TclEvalObjEx(interp, objv[objc-1], 0, iPtr->cmdFramePtr, objc-1);
- if (result == TCL_ERROR) {
- Tcl_AddErrorInfo(interp, "\n (body of \"dict with\")");
- }
+int
+TclDictWithFinish(
+ Tcl_Interp *interp, /* Command interpreter in which variable
+ * exists. Used for state management, traces
+ * and error reporting. */
+ Var *varPtr, /* Reference to the variable holding the
+ * dictionary. */
+ Var *arrayPtr, /* Reference to the array containing the
+ * variable, or NULL if the variable is a
+ * scalar. */
+ Tcl_Obj *part1Ptr, /* Name of an array (if part2 is non-NULL) or
+ * the name of a variable. NULL if the 'index'
+ * parameter is >= 0 */
+ Tcl_Obj *part2Ptr, /* If non-NULL, gives the name of an element
+ * in the array part1. */
+ int index, /* Index into the local variable table of the
+ * variable, or -1. Only used when part1Ptr is
+ * NULL. */
+ int pathc, /* The number of elements in the path into the
+ * dictionary. */
+ Tcl_Obj *const pathv[], /* The elements of the path to the subdict. */
+ Tcl_Obj *keysPtr) /* List of keys to be synchronized. This is
+ * the result value from TclDictWithInit. */
+{
+ Tcl_Obj *dictPtr, *leafPtr, *valPtr;
+ int i, allocdict, keyc;
+ Tcl_Obj **keyv;
/*
* If the dictionary variable doesn't exist, drop everything silently.
*/
- dictPtr = Tcl_ObjGetVar2(interp, objv[1], NULL, 0);
+ dictPtr = TclPtrGetVar(interp, varPtr, arrayPtr, part1Ptr, part2Ptr,
+ TCL_LEAVE_ERR_MSG, index);
if (dictPtr == NULL) {
- TclDecrRefCount(keysPtr);
- return result;
+ return TCL_OK;
}
/*
* Double-check that it is still a dictionary.
*/
- state = Tcl_SaveInterpState(interp, result);
if (Tcl_DictObjSize(interp, dictPtr, &i) != TCL_OK) {
- TclDecrRefCount(keysPtr);
- Tcl_DiscardInterpState(state);
return TCL_ERROR;
}
if (Tcl_IsShared(dictPtr)) {
dictPtr = Tcl_DuplicateObj(dictPtr);
allocdict = 1;
+ } else {
+ allocdict = 0;
}
- if (objc > 3) {
+ if (pathc > 0) {
/*
* Want to get to the dictionary which we will update; need to do
* prepare-for-update de-sharing along the path *but* avoid generating
@@ -3071,22 +3592,19 @@ DictWithCmd(
* perfectly efficient (but no memory should be leaked).
*/
- leafPtr = TclTraceDictPath(interp, dictPtr, objc-3, objv+2,
+ leafPtr = TclTraceDictPath(interp, dictPtr, pathc, pathv,
DICT_PATH_EXISTS | DICT_PATH_UPDATE);
if (leafPtr == NULL) {
- TclDecrRefCount(keysPtr);
if (allocdict) {
TclDecrRefCount(dictPtr);
}
- Tcl_DiscardInterpState(state);
return TCL_ERROR;
}
if (leafPtr == DICT_PATH_NON_EXISTENT) {
- TclDecrRefCount(keysPtr);
if (allocdict) {
TclDecrRefCount(dictPtr);
}
- return Tcl_RestoreInterpState(interp, state);
+ return TCL_OK;
}
} else {
leafPtr = dictPtr;
@@ -3112,14 +3630,13 @@ DictWithCmd(
Tcl_DictObjPut(NULL, leafPtr, keyv[i], valPtr);
}
}
- TclDecrRefCount(keysPtr);
/*
* Ensure that none of the dictionaries in the chain still have a string
* rep.
*/
- if (objc > 3) {
+ if (pathc > 0) {
InvalidateDictChain(leafPtr);
}
@@ -3127,12 +3644,14 @@ DictWithCmd(
* Write back the outermost dictionary to the variable.
*/
- if (Tcl_ObjSetVar2(interp, objv[1], NULL, dictPtr,
- TCL_LEAVE_ERR_MSG) == NULL) {
- Tcl_DiscardInterpState(state);
+ if (TclPtrSetVar(interp, varPtr, arrayPtr, part1Ptr, part2Ptr, dictPtr,
+ TCL_LEAVE_ERR_MSG, index) == NULL) {
+ if (allocdict) {
+ TclDecrRefCount(dictPtr);
+ }
return TCL_ERROR;
}
- return Tcl_RestoreInterpState(interp, state);
+ return TCL_OK;
}
/*
generated by cgit v0.12 at 2024-11-05 06:08:17 (GMT)