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-rw-r--r--generic/tclLink.c236
1 files changed, 128 insertions, 108 deletions
diff --git a/generic/tclLink.c b/generic/tclLink.c
index 7bf4fd5..2735256 100644
--- a/generic/tclLink.c
+++ b/generic/tclLink.c
@@ -11,8 +11,6 @@
*
* See the file "license.terms" for information on usage and redistribution of
* this file, and for a DISCLAIMER OF ALL WARRANTIES.
- *
- * RCS: @(#) $Id: tclLink.c,v 1.17 2006/08/18 07:45:31 das Exp $
*/
#include "tclInt.h"
@@ -67,8 +65,19 @@ typedef struct Link {
*/
static char * LinkTraceProc(ClientData clientData,Tcl_Interp *interp,
- CONST char *name1, CONST char *name2, int flags);
+ const char *name1, const char *name2, int flags);
static Tcl_Obj * ObjValue(Link *linkPtr);
+
+/*
+ * Convenience macro for accessing the value of the C variable pointed to by a
+ * link. Note that this macro produces something that may be regarded as an
+ * lvalue or rvalue; it may be assigned to as well as read. Also note that
+ * this macro assumes the name of the variable being accessed (linkPtr); this
+ * is not strictly a good thing, but it keeps the code much shorter and
+ * cleaner.
+ */
+
+#define LinkedVar(type) (*(type *) linkPtr->addr)
/*
*----------------------------------------------------------------------
@@ -93,7 +102,7 @@ static Tcl_Obj * ObjValue(Link *linkPtr);
int
Tcl_LinkVar(
Tcl_Interp *interp, /* Interpreter in which varName exists. */
- CONST char *varName, /* Name of a global variable in interp. */
+ const char *varName, /* Name of a global variable in interp. */
char *addr, /* Address of a C variable to be linked to
* varName. */
int type) /* Type of C variable: TCL_LINK_INT, etc. Also
@@ -103,7 +112,15 @@ Tcl_LinkVar(
Link *linkPtr;
int code;
- linkPtr = (Link *) ckalloc(sizeof(Link));
+ linkPtr = (Link *) Tcl_VarTraceInfo2(interp, varName, NULL,
+ TCL_GLOBAL_ONLY, LinkTraceProc, (ClientData) NULL);
+ if (linkPtr != NULL) {
+ Tcl_SetObjResult(interp, Tcl_ObjPrintf(
+ "variable '%s' is already linked", varName));
+ return TCL_ERROR;
+ }
+
+ linkPtr = ckalloc(sizeof(Link));
linkPtr->interp = interp;
linkPtr->varName = Tcl_NewStringObj(varName, -1);
Tcl_IncrRefCount(linkPtr->varName);
@@ -118,15 +135,15 @@ Tcl_LinkVar(
if (Tcl_ObjSetVar2(interp, linkPtr->varName, NULL, objPtr,
TCL_GLOBAL_ONLY|TCL_LEAVE_ERR_MSG) == NULL) {
Tcl_DecrRefCount(linkPtr->varName);
- ckfree((char *) linkPtr);
+ ckfree(linkPtr);
return TCL_ERROR;
}
- code = Tcl_TraceVar(interp, varName, TCL_GLOBAL_ONLY|TCL_TRACE_READS
- |TCL_TRACE_WRITES|TCL_TRACE_UNSETS, LinkTraceProc,
- (ClientData) linkPtr);
+ code = Tcl_TraceVar2(interp, varName, NULL,
+ TCL_GLOBAL_ONLY|TCL_TRACE_READS|TCL_TRACE_WRITES|TCL_TRACE_UNSETS,
+ LinkTraceProc, linkPtr);
if (code != TCL_OK) {
Tcl_DecrRefCount(linkPtr->varName);
- ckfree((char *) linkPtr);
+ ckfree(linkPtr);
}
return code;
}
@@ -152,20 +169,19 @@ Tcl_LinkVar(
void
Tcl_UnlinkVar(
Tcl_Interp *interp, /* Interpreter containing variable to unlink */
- CONST char *varName) /* Global variable in interp to unlink. */
+ const char *varName) /* Global variable in interp to unlink. */
{
- Link *linkPtr;
+ Link *linkPtr = (Link *) Tcl_VarTraceInfo2(interp, varName, NULL,
+ TCL_GLOBAL_ONLY, LinkTraceProc, NULL);
- linkPtr = (Link *) Tcl_VarTraceInfo(interp, varName, TCL_GLOBAL_ONLY,
- LinkTraceProc, (ClientData) NULL);
if (linkPtr == NULL) {
return;
}
- Tcl_UntraceVar(interp, varName,
+ Tcl_UntraceVar2(interp, varName, NULL,
TCL_GLOBAL_ONLY|TCL_TRACE_READS|TCL_TRACE_WRITES|TCL_TRACE_UNSETS,
- LinkTraceProc, (ClientData) linkPtr);
+ LinkTraceProc, linkPtr);
Tcl_DecrRefCount(linkPtr->varName);
- ckfree((char *) linkPtr);
+ ckfree(linkPtr);
}
/*
@@ -190,13 +206,12 @@ Tcl_UnlinkVar(
void
Tcl_UpdateLinkedVar(
Tcl_Interp *interp, /* Interpreter containing variable. */
- CONST char *varName) /* Name of global variable that is linked. */
+ const char *varName) /* Name of global variable that is linked. */
{
- Link *linkPtr;
+ Link *linkPtr = (Link *) Tcl_VarTraceInfo2(interp, varName, NULL,
+ TCL_GLOBAL_ONLY, LinkTraceProc, NULL);
int savedFlag;
- linkPtr = (Link *) Tcl_VarTraceInfo(interp, varName, TCL_GLOBAL_ONLY,
- LinkTraceProc, (ClientData) NULL);
if (linkPtr == NULL) {
return;
}
@@ -204,7 +219,14 @@ Tcl_UpdateLinkedVar(
linkPtr->flags |= LINK_BEING_UPDATED;
Tcl_ObjSetVar2(interp, linkPtr->varName, NULL, ObjValue(linkPtr),
TCL_GLOBAL_ONLY);
- linkPtr->flags = (linkPtr->flags & ~LINK_BEING_UPDATED) | savedFlag;
+ /*
+ * Callback may have unlinked the variable. [Bug 1740631]
+ */
+ linkPtr = (Link *) Tcl_VarTraceInfo2(interp, varName, NULL,
+ TCL_GLOBAL_ONLY, LinkTraceProc, NULL);
+ if (linkPtr != NULL) {
+ linkPtr->flags = (linkPtr->flags & ~LINK_BEING_UPDATED) | savedFlag;
+ }
}
/*
@@ -232,13 +254,13 @@ static char *
LinkTraceProc(
ClientData clientData, /* Contains information about the link. */
Tcl_Interp *interp, /* Interpreter containing Tcl variable. */
- CONST char *name1, /* First part of variable name. */
- CONST char *name2, /* Second part of variable name. */
+ const char *name1, /* First part of variable name. */
+ const char *name2, /* Second part of variable name. */
int flags) /* Miscellaneous additional information. */
{
- Link *linkPtr = (Link *) clientData;
+ Link *linkPtr = clientData;
int changed, valueLength;
- CONST char *value;
+ const char *value;
char **pp;
Tcl_Obj *valueObj;
int valueInt;
@@ -251,15 +273,15 @@ LinkTraceProc(
*/
if (flags & TCL_TRACE_UNSETS) {
- if (flags & TCL_INTERP_DESTROYED) {
+ if (Tcl_InterpDeleted(interp)) {
Tcl_DecrRefCount(linkPtr->varName);
- ckfree((char *) linkPtr);
+ ckfree(linkPtr);
} else if (flags & TCL_TRACE_DESTROYED) {
Tcl_ObjSetVar2(interp, linkPtr->varName, NULL, ObjValue(linkPtr),
TCL_GLOBAL_ONLY);
- Tcl_TraceVar(interp, Tcl_GetString(linkPtr->varName),
+ Tcl_TraceVar2(interp, Tcl_GetString(linkPtr->varName), NULL,
TCL_GLOBAL_ONLY|TCL_TRACE_READS|TCL_TRACE_WRITES
- |TCL_TRACE_UNSETS, LinkTraceProc, (ClientData) linkPtr);
+ |TCL_TRACE_UNSETS, LinkTraceProc, linkPtr);
}
return NULL;
}
@@ -283,51 +305,46 @@ LinkTraceProc(
switch (linkPtr->type) {
case TCL_LINK_INT:
case TCL_LINK_BOOLEAN:
- changed = *(int *)(linkPtr->addr) != linkPtr->lastValue.i;
+ changed = (LinkedVar(int) != linkPtr->lastValue.i);
break;
case TCL_LINK_DOUBLE:
- changed = *(double *)(linkPtr->addr) != linkPtr->lastValue.d;
+ changed = (LinkedVar(double) != linkPtr->lastValue.d);
break;
case TCL_LINK_WIDE_INT:
- changed = *(Tcl_WideInt *)(linkPtr->addr) != linkPtr->lastValue.w;
+ changed = (LinkedVar(Tcl_WideInt) != linkPtr->lastValue.w);
break;
case TCL_LINK_WIDE_UINT:
- changed = *(Tcl_WideUInt *)(linkPtr->addr) !=
- linkPtr->lastValue.uw;
+ changed = (LinkedVar(Tcl_WideUInt) != linkPtr->lastValue.uw);
break;
case TCL_LINK_CHAR:
- changed = *(char *)(linkPtr->addr) != linkPtr->lastValue.c;
+ changed = (LinkedVar(char) != linkPtr->lastValue.c);
break;
case TCL_LINK_UCHAR:
- changed = *(unsigned char *)(linkPtr->addr) !=
- linkPtr->lastValue.uc;
+ changed = (LinkedVar(unsigned char) != linkPtr->lastValue.uc);
break;
case TCL_LINK_SHORT:
- changed = *(short *)(linkPtr->addr) != linkPtr->lastValue.s;
+ changed = (LinkedVar(short) != linkPtr->lastValue.s);
break;
case TCL_LINK_USHORT:
- changed = *(unsigned short *)(linkPtr->addr) !=
- linkPtr->lastValue.us;
+ changed = (LinkedVar(unsigned short) != linkPtr->lastValue.us);
break;
case TCL_LINK_UINT:
- changed = *(unsigned int *)(linkPtr->addr) !=
- linkPtr->lastValue.ui;
+ changed = (LinkedVar(unsigned int) != linkPtr->lastValue.ui);
break;
case TCL_LINK_LONG:
- changed = *(long *)(linkPtr->addr) != linkPtr->lastValue.l;
+ changed = (LinkedVar(long) != linkPtr->lastValue.l);
break;
case TCL_LINK_ULONG:
- changed = *(unsigned long *)(linkPtr->addr) !=
- linkPtr->lastValue.ul;
+ changed = (LinkedVar(unsigned long) != linkPtr->lastValue.ul);
break;
case TCL_LINK_FLOAT:
- changed = *(float *)(linkPtr->addr) != linkPtr->lastValue.f;
+ changed = (LinkedVar(float) != linkPtr->lastValue.f);
break;
case TCL_LINK_STRING:
changed = 1;
break;
default:
- return "internal error: bad linked variable type";
+ return (char *) "internal error: bad linked variable type";
}
if (changed) {
Tcl_ObjSetVar2(interp, linkPtr->varName, NULL, ObjValue(linkPtr),
@@ -348,14 +365,15 @@ LinkTraceProc(
if (linkPtr->flags & LINK_READ_ONLY) {
Tcl_ObjSetVar2(interp, linkPtr->varName, NULL, ObjValue(linkPtr),
TCL_GLOBAL_ONLY);
- return "linked variable is read-only";
+ return (char *) "linked variable is read-only";
}
valueObj = Tcl_ObjGetVar2(interp, linkPtr->varName,NULL, TCL_GLOBAL_ONLY);
if (valueObj == NULL) {
/*
* This shouldn't ever happen.
*/
- return "internal error: linked variable couldn't be read";
+
+ return (char *) "internal error: linked variable couldn't be read";
}
switch (linkPtr->type) {
@@ -364,9 +382,9 @@ LinkTraceProc(
!= TCL_OK) {
Tcl_ObjSetVar2(interp, linkPtr->varName, NULL, ObjValue(linkPtr),
TCL_GLOBAL_ONLY);
- return "variable must have integer value";
+ return (char *) "variable must have integer value";
}
- *(int *)(linkPtr->addr) = linkPtr->lastValue.i;
+ LinkedVar(int) = linkPtr->lastValue.i;
break;
case TCL_LINK_WIDE_INT:
@@ -374,36 +392,36 @@ LinkTraceProc(
!= TCL_OK) {
Tcl_ObjSetVar2(interp, linkPtr->varName, NULL, ObjValue(linkPtr),
TCL_GLOBAL_ONLY);
- return "variable must have integer value";
+ return (char *) "variable must have integer value";
}
- *(Tcl_WideInt *)(linkPtr->addr) = linkPtr->lastValue.w;
+ LinkedVar(Tcl_WideInt) = linkPtr->lastValue.w;
break;
case TCL_LINK_DOUBLE:
if (Tcl_GetDoubleFromObj(NULL, valueObj, &linkPtr->lastValue.d)
!= TCL_OK) {
#ifdef ACCEPT_NAN
- if (valueObj->typePtr != &tclDoubleType) {
+ if (valueObj->typePtr != &tclDoubleType) {
#endif
- Tcl_ObjSetVar2(interp, linkPtr->varName, NULL, ObjValue(linkPtr),
- TCL_GLOBAL_ONLY);
- return "variable must have real value";
+ Tcl_ObjSetVar2(interp, linkPtr->varName, NULL,
+ ObjValue(linkPtr), TCL_GLOBAL_ONLY);
+ return (char *) "variable must have real value";
#ifdef ACCEPT_NAN
- }
- linkPtr->lastValue.d = valueObj->internalRep.doubleValue;
+ }
+ linkPtr->lastValue.d = valueObj->internalRep.doubleValue;
#endif
}
- *(double *)(linkPtr->addr) = linkPtr->lastValue.d;
+ LinkedVar(double) = linkPtr->lastValue.d;
break;
case TCL_LINK_BOOLEAN:
if (Tcl_GetBooleanFromObj(NULL, valueObj, &linkPtr->lastValue.i)
- != TCL_OK) {
+ != TCL_OK) {
Tcl_ObjSetVar2(interp, linkPtr->varName, NULL, ObjValue(linkPtr),
TCL_GLOBAL_ONLY);
- return "variable must have boolean value";
+ return (char *) "variable must have boolean value";
}
- *(int *)(linkPtr->addr) = linkPtr->lastValue.i;
+ LinkedVar(int) = linkPtr->lastValue.i;
break;
case TCL_LINK_CHAR:
@@ -411,10 +429,10 @@ LinkTraceProc(
|| valueInt < SCHAR_MIN || valueInt > SCHAR_MAX) {
Tcl_ObjSetVar2(interp, linkPtr->varName, NULL, ObjValue(linkPtr),
TCL_GLOBAL_ONLY);
- return "variable must have char value";
+ return (char *) "variable must have char value";
}
linkPtr->lastValue.c = (char)valueInt;
- *(char *)(linkPtr->addr) = linkPtr->lastValue.c;
+ LinkedVar(char) = linkPtr->lastValue.c;
break;
case TCL_LINK_UCHAR:
@@ -422,10 +440,10 @@ LinkTraceProc(
|| valueInt < 0 || valueInt > UCHAR_MAX) {
Tcl_ObjSetVar2(interp, linkPtr->varName, NULL, ObjValue(linkPtr),
TCL_GLOBAL_ONLY);
- return "variable must have unsigned char value";
+ return (char *) "variable must have unsigned char value";
}
linkPtr->lastValue.uc = (unsigned char) valueInt;
- *(unsigned char *)(linkPtr->addr) = linkPtr->lastValue.uc;
+ LinkedVar(unsigned char) = linkPtr->lastValue.uc;
break;
case TCL_LINK_SHORT:
@@ -433,10 +451,10 @@ LinkTraceProc(
|| valueInt < SHRT_MIN || valueInt > SHRT_MAX) {
Tcl_ObjSetVar2(interp, linkPtr->varName, NULL, ObjValue(linkPtr),
TCL_GLOBAL_ONLY);
- return "variable must have short value";
+ return (char *) "variable must have short value";
}
linkPtr->lastValue.s = (short)valueInt;
- *(short *)(linkPtr->addr) = linkPtr->lastValue.s;
+ LinkedVar(short) = linkPtr->lastValue.s;
break;
case TCL_LINK_USHORT:
@@ -444,10 +462,10 @@ LinkTraceProc(
|| valueInt < 0 || valueInt > USHRT_MAX) {
Tcl_ObjSetVar2(interp, linkPtr->varName, NULL, ObjValue(linkPtr),
TCL_GLOBAL_ONLY);
- return "variable must have unsigned short value";
+ return (char *) "variable must have unsigned short value";
}
linkPtr->lastValue.us = (unsigned short)valueInt;
- *(unsigned short *)(linkPtr->addr) = linkPtr->lastValue.us;
+ LinkedVar(unsigned short) = linkPtr->lastValue.us;
break;
case TCL_LINK_UINT:
@@ -455,10 +473,10 @@ LinkTraceProc(
|| valueWide < 0 || valueWide > UINT_MAX) {
Tcl_ObjSetVar2(interp, linkPtr->varName, NULL, ObjValue(linkPtr),
TCL_GLOBAL_ONLY);
- return "variable must have unsigned int value";
+ return (char *) "variable must have unsigned int value";
}
linkPtr->lastValue.ui = (unsigned int)valueWide;
- *(unsigned int *)(linkPtr->addr) = linkPtr->lastValue.ui;
+ LinkedVar(unsigned int) = linkPtr->lastValue.ui;
break;
case TCL_LINK_LONG:
@@ -466,10 +484,10 @@ LinkTraceProc(
|| valueWide < LONG_MIN || valueWide > LONG_MAX) {
Tcl_ObjSetVar2(interp, linkPtr->varName, NULL, ObjValue(linkPtr),
TCL_GLOBAL_ONLY);
- return "variable must have long value";
+ return (char *) "variable must have long value";
}
linkPtr->lastValue.l = (long)valueWide;
- *(long *)(linkPtr->addr) = linkPtr->lastValue.l;
+ LinkedVar(long) = linkPtr->lastValue.l;
break;
case TCL_LINK_ULONG:
@@ -477,10 +495,10 @@ LinkTraceProc(
|| valueWide < 0 || (Tcl_WideUInt) valueWide > ULONG_MAX) {
Tcl_ObjSetVar2(interp, linkPtr->varName, NULL, ObjValue(linkPtr),
TCL_GLOBAL_ONLY);
- return "variable must have unsigned long value";
+ return (char *) "variable must have unsigned long value";
}
linkPtr->lastValue.ul = (unsigned long)valueWide;
- *(unsigned long *)(linkPtr->addr) = linkPtr->lastValue.ul;
+ LinkedVar(unsigned long) = linkPtr->lastValue.ul;
break;
case TCL_LINK_WIDE_UINT:
@@ -490,36 +508,34 @@ LinkTraceProc(
if (Tcl_GetWideIntFromObj(interp, valueObj, &valueWide) != TCL_OK) {
Tcl_ObjSetVar2(interp, linkPtr->varName, NULL, ObjValue(linkPtr),
TCL_GLOBAL_ONLY);
- return "variable must have unsigned wide int value";
+ return (char *) "variable must have unsigned wide int value";
}
linkPtr->lastValue.uw = (Tcl_WideUInt)valueWide;
- *(Tcl_WideUInt *)(linkPtr->addr) = linkPtr->lastValue.uw;
+ LinkedVar(Tcl_WideUInt) = linkPtr->lastValue.uw;
break;
case TCL_LINK_FLOAT:
if (Tcl_GetDoubleFromObj(interp, valueObj, &valueDouble) != TCL_OK
- || valueDouble < FLT_MIN || valueDouble > FLT_MAX) {
+ || valueDouble < -FLT_MAX || valueDouble > FLT_MAX) {
Tcl_ObjSetVar2(interp, linkPtr->varName, NULL, ObjValue(linkPtr),
TCL_GLOBAL_ONLY);
- return "variable must have float value";
+ return (char *) "variable must have float value";
}
linkPtr->lastValue.f = (float)valueDouble;
- *(float *)(linkPtr->addr) = linkPtr->lastValue.f;
+ LinkedVar(float) = linkPtr->lastValue.f;
break;
case TCL_LINK_STRING:
value = Tcl_GetStringFromObj(valueObj, &valueLength);
valueLength++;
- pp = (char **)(linkPtr->addr);
- if (*pp != NULL) {
- ckfree(*pp);
- }
- *pp = (char *) ckalloc((unsigned) valueLength);
+ pp = (char **) linkPtr->addr;
+
+ *pp = ckrealloc(*pp, valueLength);
memcpy(*pp, value, (unsigned) valueLength);
break;
default:
- return "internal error: bad linked variable type";
+ return (char *) "internal error: bad linked variable type";
}
return NULL;
}
@@ -547,54 +563,56 @@ ObjValue(
Link *linkPtr) /* Structure describing linked variable. */
{
char *p;
+ Tcl_Obj *resultObj;
switch (linkPtr->type) {
case TCL_LINK_INT:
- linkPtr->lastValue.i = *(int *)(linkPtr->addr);
+ linkPtr->lastValue.i = LinkedVar(int);
return Tcl_NewIntObj(linkPtr->lastValue.i);
case TCL_LINK_WIDE_INT:
- linkPtr->lastValue.w = *(Tcl_WideInt *)(linkPtr->addr);
+ linkPtr->lastValue.w = LinkedVar(Tcl_WideInt);
return Tcl_NewWideIntObj(linkPtr->lastValue.w);
case TCL_LINK_DOUBLE:
- linkPtr->lastValue.d = *(double *)(linkPtr->addr);
+ linkPtr->lastValue.d = LinkedVar(double);
return Tcl_NewDoubleObj(linkPtr->lastValue.d);
case TCL_LINK_BOOLEAN:
- linkPtr->lastValue.i = *(int *)(linkPtr->addr);
+ linkPtr->lastValue.i = LinkedVar(int);
return Tcl_NewBooleanObj(linkPtr->lastValue.i != 0);
case TCL_LINK_CHAR:
- linkPtr->lastValue.c = *(char *)(linkPtr->addr);
+ linkPtr->lastValue.c = LinkedVar(char);
return Tcl_NewIntObj(linkPtr->lastValue.c);
case TCL_LINK_UCHAR:
- linkPtr->lastValue.uc = *(unsigned char *)(linkPtr->addr);
+ linkPtr->lastValue.uc = LinkedVar(unsigned char);
return Tcl_NewIntObj(linkPtr->lastValue.uc);
case TCL_LINK_SHORT:
- linkPtr->lastValue.s = *(short *)(linkPtr->addr);
+ linkPtr->lastValue.s = LinkedVar(short);
return Tcl_NewIntObj(linkPtr->lastValue.s);
case TCL_LINK_USHORT:
- linkPtr->lastValue.us = *(unsigned short *)(linkPtr->addr);
+ linkPtr->lastValue.us = LinkedVar(unsigned short);
return Tcl_NewIntObj(linkPtr->lastValue.us);
case TCL_LINK_UINT:
- linkPtr->lastValue.ui = *(unsigned int *)(linkPtr->addr);
- return Tcl_NewWideIntObj((Tcl_WideInt)(linkPtr->lastValue.ui));
+ linkPtr->lastValue.ui = LinkedVar(unsigned int);
+ return Tcl_NewWideIntObj((Tcl_WideInt) linkPtr->lastValue.ui);
case TCL_LINK_LONG:
- linkPtr->lastValue.l = *(long *)(linkPtr->addr);
- return Tcl_NewWideIntObj(linkPtr->lastValue.l);
+ linkPtr->lastValue.l = LinkedVar(long);
+ return Tcl_NewWideIntObj((Tcl_WideInt) linkPtr->lastValue.l);
case TCL_LINK_ULONG:
- linkPtr->lastValue.ul = *(unsigned long *)(linkPtr->addr);
- return Tcl_NewWideIntObj((Tcl_WideInt)(linkPtr->lastValue.ul));
+ linkPtr->lastValue.ul = LinkedVar(unsigned long);
+ return Tcl_NewWideIntObj((Tcl_WideInt) linkPtr->lastValue.ul);
case TCL_LINK_FLOAT:
- linkPtr->lastValue.f = *(float *)(linkPtr->addr);
+ linkPtr->lastValue.f = LinkedVar(float);
return Tcl_NewDoubleObj(linkPtr->lastValue.f);
case TCL_LINK_WIDE_UINT:
- linkPtr->lastValue.uw = *(Tcl_WideUInt *)(linkPtr->addr);
+ linkPtr->lastValue.uw = LinkedVar(Tcl_WideUInt);
/*
* FIXME: represent as a bignum.
*/
return Tcl_NewWideIntObj((Tcl_WideInt) linkPtr->lastValue.uw);
case TCL_LINK_STRING:
- p = *(char **)(linkPtr->addr);
+ p = LinkedVar(char *);
if (p == NULL) {
- return Tcl_NewStringObj("NULL", 4);
+ TclNewLiteralStringObj(resultObj, "NULL");
+ return resultObj;
}
return Tcl_NewStringObj(p, -1);
@@ -602,8 +620,10 @@ ObjValue(
* This code only gets executed if the link type is unknown (shouldn't
* ever happen).
*/
+
default:
- return Tcl_NewStringObj("??", 2);
+ TclNewLiteralStringObj(resultObj, "??");
+ return resultObj;
}
}
generated by cgit v0.12 at 2025-10-31 23:21:09 (GMT)