diff -r 000000000000 -r 4f2f89ce4247 WebCore/bindings/js/JSJavaScriptCallFrameCustom.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/WebCore/bindings/js/JSJavaScriptCallFrameCustom.cpp	Fri Sep 17 09:02:29 2010 +0300
@@ -0,0 +1,128 @@
+/*
+ * Copyright (C) 2008 Apple Inc. All Rights Reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE INC. OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+ * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "config.h"
+#include "JSJavaScriptCallFrame.h"
+
+#if ENABLE(JAVASCRIPT_DEBUGGER)
+
+#include "JavaScriptCallFrame.h"
+#include <runtime/ArrayPrototype.h>
+#include <runtime/Error.h>
+
+using namespace JSC;
+
+namespace WebCore {
+
+JSValue JSJavaScriptCallFrame::evaluate(ExecState* exec)
+{
+    JSValue exception;
+    JSValue result = impl()->evaluate(exec->argument(0).toString(exec), exception);
+
+    if (exception)
+        throwError(exec, exception);
+
+    return result;
+}
+
+JSValue JSJavaScriptCallFrame::thisObject(ExecState*) const
+{
+    return impl()->thisObject() ? impl()->thisObject() : jsNull();
+}
+
+JSValue JSJavaScriptCallFrame::type(ExecState* exec) const
+{
+    switch (impl()->type()) {
+        case DebuggerCallFrame::FunctionType:
+            return jsString(exec, UString("function"));
+        case DebuggerCallFrame::ProgramType:
+            return jsString(exec, UString("program"));
+    }
+
+    ASSERT_NOT_REACHED();
+    return jsNull();
+}
+
+JSValue JSJavaScriptCallFrame::scopeChain(ExecState* exec) const
+{
+    if (!impl()->scopeChain())
+        return jsNull();
+
+    const ScopeChainNode* scopeChain = impl()->scopeChain();
+    ScopeChainIterator iter = scopeChain->begin();
+    ScopeChainIterator end = scopeChain->end();
+
+    // we must always have something in the scope chain
+    ASSERT(iter != end);
+
+    MarkedArgumentBuffer list;
+    do {
+        list.append(*iter);
+        ++iter;
+    } while (iter != end);
+
+    return constructArray(exec, list);
+}
+
+JSValue JSJavaScriptCallFrame::scopeType(ExecState* exec)
+{
+    if (!impl()->scopeChain())
+        return jsUndefined();
+
+    if (!exec->argument(0).isInt32())
+        return jsUndefined();
+    int index = exec->argument(0).asInt32();
+
+    const ScopeChainNode* scopeChain = impl()->scopeChain();
+    ScopeChainIterator end = scopeChain->end();
+
+    bool foundLocalScope = false;
+    for (ScopeChainIterator iter = scopeChain->begin(); iter != end; ++iter) {
+        JSObject* scope = *iter;
+        if (scope->isActivationObject()) {
+            if (!foundLocalScope) {
+                // First activation object is local scope, each successive activation object is closure.
+                if (!index)
+                    return jsJavaScriptCallFrameLOCAL_SCOPE(exec, JSValue(), Identifier());
+                foundLocalScope = true;
+            } else if (!index)
+                return jsJavaScriptCallFrameCLOSURE_SCOPE(exec, JSValue(), Identifier());
+        }
+
+        if (!index) {
+            // Last in the chain is global scope.
+            if (++iter == end)
+                return jsJavaScriptCallFrameGLOBAL_SCOPE(exec, JSValue(), Identifier());
+            return jsJavaScriptCallFrameWITH_SCOPE(exec, JSValue(), Identifier());
+        }
+
+        --index;
+    }
+    return jsUndefined();
+}
+
+} // namespace WebCore
+
+#endif // ENABLE(JAVASCRIPT_DEBUGGER)