Reviewed by Oliver.

        - fix Window shadowing regressions caused by the previous commit.

        * kjs/nodes.cpp:
        (VarDeclNode::evaluate): Handle the case of global scope specially.

git-svn-id: https://svn.webkit.org/repository/webkit/trunk@24533 268f45cc-cd09-0410-ab3c-d52691b4dbfc

diff --git a/JavaScriptCore/ChangeLog b/JavaScriptCore/ChangeLog
index e60d5c723acd4ba59d079526666ae1eed8638b2d..03ba9572ec27026d0befbcdb02ba0eea6f431e44 100644 (file)
--- a/JavaScriptCore/ChangeLog
+++ b/JavaScriptCore/ChangeLog
@@ -1,3 +1,12 @@
+2007-07-23  Maciej Stachowiak  <mjs@apple.com>
+
+        Reviewed by Oliver.
+        
+        - fix Window shadowing regressions caused by the previous commit.
+
+        * kjs/nodes.cpp:
+        (VarDeclNode::evaluate): Handle the case of global scope specially.
+
 2007-07-22  Maciej Stachowiak  <mjs@apple.com>
 
         Reviewed by Darin.

diff --git a/JavaScriptCore/kjs/nodes.cpp b/JavaScriptCore/kjs/nodes.cpp
index eef4deada0a3d1198ad01904bc1363f49247c2ac..9ffea7bd4ae9bdcef733f2bdb349a95286618623 100644 (file)
--- a/JavaScriptCore/kjs/nodes.cpp
+++ b/JavaScriptCore/kjs/nodes.cpp
@@ -1618,17 +1618,15 @@ JSValue* VarDeclNode::handleSlowCase(ExecState* exec, const ScopeChain& chain, J
 // ECMA 12.2
 JSValue* VarDeclNode::evaluate(ExecState* exec)
 {
-    JSValue* val;
+    const ScopeChain& chain = exec->context()->scopeChain();
+    JSObject* variableObject = exec->context()->variableObject();
+
+    ASSERT(!chain.isEmpty());
+
     if (init) {
-        val = init->evaluate(exec);
+        JSValue* val = init->evaluate(exec);
         KJS_CHECKEXCEPTIONVALUE
             
-        const ScopeChain& chain = exec->context()->scopeChain();
-        JSObject* variableObject = exec->context()->variableObject();
-
-        ASSERT(!chain.isEmpty());
-        ASSERT(variableObject->getDirect(ident) || ident == exec->propertyNames().arguments);
-
         // if the variable object is the top of the scope chain, then that must
         // be where this variable is declared, processVarDecls would have put 
         // it there. Don't search the scope chain, to optimize this very common case.
@@ -1640,8 +1638,29 @@ JSValue* VarDeclNode::evaluate(ExecState* exec)
         if (varType == VarDeclNode::Constant)
             flags |= ReadOnly;
         
-        variableObject->put(exec, ident, val, flags);
-    } 
+        if (++chain.begin() == chain.end()) {
+            int flags = Internal;
+            if (exec->context()->codeType() != EvalCode)
+                flags |= DontDelete;
+            if (varType == VarDeclNode::Constant)
+                flags |= ReadOnly;
+            variableObject->putDirect(ident, val, flags);
+        } else {
+            ASSERT(variableObject->getDirect(ident) || ident == exec->propertyNames().arguments);
+            variableObject->put(exec, ident, val, flags);
+        }
+    } else {
+        if (++chain.begin() == chain.end()) {
+            int flags = Internal;
+            if (exec->context()->codeType() != EvalCode)
+                flags |= DontDelete;
+            if (varType == VarDeclNode::Constant)
+                flags |= ReadOnly;
+            variableObject->putDirect(ident, jsUndefined(), flags);
+        } else {
+
+        }
+    }
 
     // no caller of this function actually uses the return value. 
     // FIXME: It would be better to change the inheritence hierarchy so this