* generic/tclCompCmds.c: Simplified [variable] compiler and

	* generic/tclExecute.c:   executor. Missed updates to "there is
	always a valid frame".

3 files changed, 45 insertions, 47 deletions

diff --git a/ChangeLog b/ChangeLog
index 043c57f..c17d3b1 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,9 @@
 2007-06-15  Miguel Sofer  <msofer@users.sf.net>
 
+	* generic/tclCompCmds.c:  Simplified [variable] compiler and 
+	* generic/tclExecute.c:   executor. Missed updates to "there is 
+	always a valid frame".
+
 	* generic/tclCompile.c: reverted TclEvalObjvInternal and 
 	* generic/tclExecute.c: INST_INVOKE to essentially what they were 
 	* generic/tclBasic.c:   previous to the commit of 2007-04-03
diff --git a/generic/tclCompCmds.c b/generic/tclCompCmds.c
index 8651432..952f4bd 100644
--- a/generic/tclCompCmds.c
+++ b/generic/tclCompCmds.c
@@ -12,7 +12,7 @@
  * See the file "license.terms" for information on usage and redistribution of
  * this file, and for a DISCLAIMER OF ALL WARRANTIES.
  *
- * RCS: @(#) $Id: tclCompCmds.c,v 1.109 2007/04/23 19:04:42 kennykb Exp $
+ * RCS: @(#) $Id: tclCompCmds.c,v 1.110 2007/06/15 22:58:48 msofer Exp $
  */
 
 #include "tclInt.h"
@@ -5637,7 +5637,6 @@ TclCompileVariableCmd(
 				 * created by Tcl_ParseCommand. */
     CompileEnv *envPtr)		/* Holds resulting instructions. */
 {
-    Interp *iPtr = (Interp *) interp;
     Tcl_Token *varTokenPtr, *valueTokenPtr;
     int localIndex, numWords, i;    
     DefineLineInformation;	/* TIP #280 */
@@ -5656,13 +5655,6 @@ TclCompileVariableCmd(
     }
     
     /*
-     * Push the namespace: it is the namespace corresponding to the current
-     * compilation. 
-     */
-
-    PushLiteral(envPtr, iPtr->varFramePtr->nsPtr->fullName,-1);
-
-    /*
      * Loop over the (var, value) pairs. 
      */
 
@@ -5692,10 +5684,9 @@ TclCompileVariableCmd(
     }
     
     /*
-     * Pop the namespace, and set the result to empty
+     * Set the result to empty
      */
 
-    TclEmitOpcode(INST_POP, envPtr);
     PushLiteral(envPtr, "", 0);
     return TCL_OK;
 }
diff --git a/generic/tclExecute.c b/generic/tclExecute.c
index 80ec09b..0d6a061 100644
--- a/generic/tclExecute.c
+++ b/generic/tclExecute.c
@@ -12,7 +12,7 @@
  * See the file "license.terms" for information on usage and redistribution of
  * this file, and for a DISCLAIMER OF ALL WARRANTIES.
  *
- * RCS: @(#) $Id: tclExecute.c,v 1.294 2007/06/15 19:58:13 msofer Exp $
+ * RCS: @(#) $Id: tclExecute.c,v 1.295 2007/06/15 22:58:49 msofer Exp $
  */
 
 #include "tclInt.h"
@@ -1139,8 +1139,7 @@ TclCompEvalObj(
 	if (((Interp *) *codePtr->interpHandle != iPtr)
 		|| (codePtr->compileEpoch != iPtr->compileEpoch)
 #ifdef CHECK_PROC_ORIGINATION	/* [Bug: 3412 Pedantic] */
-		|| (codePtr->procPtr != NULL && !(iPtr->varFramePtr &&
-			iPtr->varFramePtr->procPtr == codePtr->procPtr))
+		|| codePtr->procPtr != iPtr->varFramePtr->procPtr
 #endif
 		|| (codePtr->nsPtr != namespacePtr)
 		|| (codePtr->nsEpoch != namespacePtr->resolverEpoch)) {
@@ -1430,13 +1429,8 @@ TclExecuteByteCode(
     iPtr->stats.numExecutions++;
 #endif
 
-    if (iPtr->varFramePtr != NULL) {
-	namespacePtr = iPtr->varFramePtr->nsPtr;
-	compiledLocals = iPtr->varFramePtr->compiledLocals;
-    } else {
-	namespacePtr = iPtr->globalNsPtr;
-	compiledLocals = NULL;
-    }
+    namespacePtr = iPtr->varFramePtr->nsPtr;
+    compiledLocals = iPtr->varFramePtr->compiledLocals;
 
     /*
      * Loop executing instructions until a "done" instruction, a TCL_RETURN,
@@ -2900,12 +2894,32 @@ TclExecuteByteCode(
 	}
 
     case INST_VARIABLE:
+	TRACE("variable ");
+	otherPtr = TclObjLookupVar(interp, OBJ_AT_TOS, NULL,
+		(TCL_NAMESPACE_ONLY | TCL_LEAVE_ERR_MSG), "access",
+		/*createPart1*/ 1, /*createPart2*/ 1, &varPtr);
+	if (otherPtr) {
+	    /*
+	     * Do the [variable] magic
+	     */
+	    
+	    if (!TclIsVarNamespaceVar(otherPtr)) {
+		TclSetVarNamespaceVar(otherPtr);
+		otherPtr->refCount++;
+	    }
+	    result = TCL_OK;
+	    goto doLinkVars;
+	}
+	result = TCL_ERROR;
+	goto checkForCatch;
+	
+
     case INST_NSUPVAR:
 	TRACE_WITH_OBJ(("nsupvar "), OBJ_UNDER_TOS);
 
 	{
 	    Tcl_Namespace *nsPtr, *savedNsPtr;
-
+	    
 	    result = TclGetNamespaceFromObj(interp, OBJ_UNDER_TOS, &nsPtr);
 	    if ((result == TCL_OK) && nsPtr) {
 		/*
@@ -2919,32 +2933,21 @@ TclExecuteByteCode(
 			/*createPart1*/ 1, /*createPart2*/ 1, &varPtr);
 		iPtr->varFramePtr->nsPtr = (Namespace *) savedNsPtr;
 		if (otherPtr) {
-		    /*
-		     * Do the [variable] magic if necessary
-		     */
-
-		    if ((*pc == INST_VARIABLE)
-			    && !TclIsVarNamespaceVar(otherPtr)) {
-			TclSetVarNamespaceVar(otherPtr);
-			otherPtr->refCount++;
-		    }
-		} else {
-		    result = TCL_ERROR;
-		    goto checkForCatch;
-		}
-	    } else {
-		if (nsPtr == NULL) {
-		    /*
-		     * The namespace does not exist, leave an error message.
-		     */
-
-		    Tcl_SetObjResult(interp, Tcl_Format(NULL,
-			    "namespace \"%s\" does not exist", 1,
-			    &OBJ_UNDER_TOS));
-		    result = TCL_ERROR;
+		    result = TCL_OK;
+		    goto doLinkVars;
 		}
-		goto checkForCatch;
 	    }
+	    if (!nsPtr) {
+		/*
+		 * The namespace does not exist, leave an error message.
+		 */
+		
+		Tcl_SetObjResult(interp, Tcl_Format(NULL,
+					 "namespace \"%s\" does not exist", 1,
+					 &OBJ_UNDER_TOS));
+	    }
+	    result = TCL_ERROR;
+	    goto checkForCatch;
 	}
 
     doLinkVars:
@@ -2983,7 +2986,7 @@ TclExecuteByteCode(
 
 	/*
 	 * Do not pop the namespace or frame index, it may be needed for other
-	 * variables.
+	 * variables - and [variable] did not push it at all.
 	 */
 
     doLinkVarsDone: