diff options
| -rw-r--r-- | generic/tclVar.c | 58 | ||||
| -rw-r--r-- | tests/set.test | 5 |
2 files changed, 36 insertions, 27 deletions
diff --git a/generic/tclVar.c b/generic/tclVar.c index 6bf4564..befcc26 100644 --- a/generic/tclVar.c +++ b/generic/tclVar.c @@ -475,7 +475,9 @@ TclObjLookupVar( if (part2) { part2Ptr = Tcl_NewStringObj(part2, -1); - Tcl_IncrRefCount(part2Ptr); + if (createPart2) { + Tcl_IncrRefCount(part2Ptr); + } } resPtr = TclObjLookupVarEx(interp, part1Ptr, part2Ptr, @@ -488,6 +490,12 @@ TclObjLookupVar( return resPtr; } +/* + * When createPart1 is 1, callers must IncrRefCount part1Ptr if they + * plan to DecrRefCount it. + * When createPart2 is 1, callers must IncrRefCount part2Ptr if they + * plan to DecrRefCount it. + */ Var * TclObjLookupVarEx( Tcl_Interp *interp, /* Interpreter to use for lookup. */ @@ -628,7 +636,9 @@ TclObjLookupVarEx( part2 = newPart2 = part1Ptr->internalRep.twoPtrValue.ptr2; if (newPart2) { part2Ptr = Tcl_NewStringObj(newPart2, -1); - Tcl_IncrRefCount(part2Ptr); + if (createPart2) { + Tcl_IncrRefCount(part2Ptr); + } } part1Ptr = part1Ptr->internalRep.twoPtrValue.ptr1; typePtr = part1Ptr->typePtr; @@ -674,7 +684,9 @@ TclObjLookupVarEx( *(newPart2+len2) = '\0'; part2 = newPart2; part2Ptr = Tcl_NewStringObj(newPart2, -1); - Tcl_IncrRefCount(part2Ptr); + if (createPart2) { + Tcl_IncrRefCount(part2Ptr); + } /* * Free the internal rep of the original part1Ptr, now renamed @@ -1084,6 +1096,8 @@ TclLookupSimpleVar( * The variable at arrayPtr may be converted to be an array if * createPart1 is 1. A new hashtable entry may be created if createPart2 * is 1. + * When createElem is 1, callers must incr elNamePtr if they plan + * to decr it. * *---------------------------------------------------------------------- */ @@ -1218,11 +1232,9 @@ Tcl_GetVar( * TCL_NAMESPACE_ONLY or TCL_LEAVE_ERR_MSG * bits. */ { - Tcl_Obj *varNamePtr, *resultPtr; + Tcl_Obj *varNamePtr = Tcl_NewStringObj(varName, -1); + Tcl_Obj *resultPtr = Tcl_ObjGetVar2(interp, varNamePtr, NULL, flags); - varNamePtr = Tcl_NewStringObj(varName, -1); - Tcl_IncrRefCount(varNamePtr); - resultPtr = Tcl_ObjGetVar2(interp, varNamePtr, NULL, flags); TclDecrRefCount(varNamePtr); if (resultPtr == NULL) { @@ -1266,15 +1278,12 @@ Tcl_GetVar2( * TCL_NAMESPACE_ONLY and TCL_LEAVE_ERR_MSG * * bits. */ { - Tcl_Obj *resultPtr, *part1Ptr, *part2Ptr; + Tcl_Obj *resultPtr; + Tcl_Obj *part2Ptr = NULL, *part1Ptr = Tcl_NewStringObj(part1, -1); - part1Ptr = Tcl_NewStringObj(part1, -1); - Tcl_IncrRefCount(part1Ptr); if (part2) { part2Ptr = Tcl_NewStringObj(part2, -1); Tcl_IncrRefCount(part2Ptr); - } else { - part2Ptr = NULL; } resultPtr = Tcl_ObjGetVar2(interp, part1Ptr, part2Ptr, flags); @@ -1325,7 +1334,6 @@ Tcl_GetVar2Ex( { Tcl_Obj *resPtr, *part2Ptr = NULL, *part1Ptr = Tcl_NewStringObj(part1, -1); - Tcl_IncrRefCount(part1Ptr); if (part2) { part2Ptr = Tcl_NewStringObj(part2, -1); Tcl_IncrRefCount(part2Ptr); @@ -1361,6 +1369,8 @@ Tcl_GetVar2Ex( * the returned reference; if you want to keep a reference to the object * you must increment its ref count yourself. * + * Callers must incr part2Ptr if they plan to decr it. + * *---------------------------------------------------------------------- */ @@ -1566,17 +1576,13 @@ Tcl_SetVar( * TCL_APPEND_VALUE, TCL_LIST_ELEMENT, * TCL_LEAVE_ERR_MSG. */ { - Tcl_Obj *valuePtr, *varNamePtr, *varValuePtr; + Tcl_Obj *varValuePtr, *varNamePtr = Tcl_NewStringObj(varName, -1); - varNamePtr = Tcl_NewStringObj(varName, -1); Tcl_IncrRefCount(varNamePtr); - valuePtr = Tcl_NewStringObj(newValue, -1); - Tcl_IncrRefCount(valuePtr); - - varValuePtr = Tcl_ObjSetVar2(interp, varNamePtr, NULL, valuePtr, flags); - + varValuePtr = Tcl_ObjSetVar2(interp, varNamePtr, NULL, + Tcl_NewStringObj(newValue, -1), flags); Tcl_DecrRefCount(varNamePtr); - Tcl_DecrRefCount(valuePtr); + if (varValuePtr == NULL) { return NULL; } @@ -1724,6 +1730,7 @@ Tcl_SetVar2Ex( * The value of the given variable is set. If either the array or the * entry didn't exist then a new variable is created. * Callers must Incr part1Ptr if they plan to Decr it. + * Callers must Incr part2Ptr if they plan to Decr it. * *---------------------------------------------------------------------- */ @@ -2014,6 +2021,7 @@ TclPtrSetVar( * incremented to reflect the returned reference; if you want to keep a * reference to the object you must increment its ref count yourself. * Callers must Incr part1Ptr if they plan to Decr it. + * Callers must Incr part2Ptr if they plan to Decr it. * *---------------------------------------------------------------------- */ @@ -2221,10 +2229,8 @@ Tcl_UnsetVar2( int result; Tcl_Obj *part2Ptr = NULL, *part1Ptr = Tcl_NewStringObj(part1, -1); - Tcl_IncrRefCount(part1Ptr); if (part2) { part2Ptr = Tcl_NewStringObj(part2, -1); - Tcl_IncrRefCount(part2Ptr); } /* @@ -3093,7 +3099,7 @@ ArrayStartSearchCmd( Tcl_ObjPrintf("s-%d-%s", searchPtr->id, varName)); return TCL_OK; } - + /* *---------------------------------------------------------------------- * @@ -3199,7 +3205,7 @@ ArrayAnyMoreCmd( Tcl_SetObjResult(interp, iPtr->execEnvPtr->constants[gotValue]); return TCL_OK; } - + /* *---------------------------------------------------------------------- * @@ -5784,7 +5790,6 @@ Tcl_FindNamespaceVar( Tcl_Obj *namePtr = Tcl_NewStringObj(name, -1); Tcl_Var var; - Tcl_IncrRefCount(namePtr); var = ObjFindNamespaceVar(interp, namePtr, contextNsPtr, flags); Tcl_DecrRefCount(namePtr); return var; @@ -5879,7 +5884,6 @@ ObjFindNamespaceVar( varPtr = NULL; if (simpleName != name) { simpleNamePtr = Tcl_NewStringObj(simpleName, -1); - Tcl_IncrRefCount(simpleNamePtr); } else { simpleNamePtr = namePtr; } diff --git a/tests/set.test b/tests/set.test index 1d88553..18119f5 100644 --- a/tests/set.test +++ b/tests/set.test @@ -524,6 +524,11 @@ test set-5.1 {error on malformed array name} testset2 { list $msg $msg1 } {{can't read "z(a)(b)": variable isn't array} {can't read "z(b)(a)": variable isn't array}} +# In a mem-debug build, this test will crash unless Bug 3602706 is fixed. +test set-5.2 {Bug 3602706} -body { + testset2 ::tcl_platform not-in-there +} -returnCodes error -result * -match glob + # cleanup catch {unset a} catch {unset b} |