diff -r 000000000000 -r 4f2f89ce4247 WebCore/bindings/v8/JavaScriptCallFrame.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/WebCore/bindings/v8/JavaScriptCallFrame.cpp	Fri Sep 17 09:02:29 2010 +0300
@@ -0,0 +1,120 @@
+/*
+ * Copyright (c) 2010, Google 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:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * 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.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "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 THE COPYRIGHT
+ * OWNER 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 "JavaScriptCallFrame.h"
+
+#if ENABLE(JAVASCRIPT_DEBUGGER)
+
+#include "V8Binding.h"
+
+namespace WebCore {
+
+JavaScriptCallFrame::JavaScriptCallFrame(v8::Handle<v8::Context> debuggerContext, v8::Handle<v8::Object> callFrame)
+    : m_debuggerContext(debuggerContext)
+    , m_callFrame(callFrame)
+{
+}
+
+JavaScriptCallFrame::~JavaScriptCallFrame()
+{
+}
+
+JavaScriptCallFrame* JavaScriptCallFrame::caller()
+{
+    if (!m_caller) {
+        v8::HandleScope handleScope;
+        v8::Context::Scope contextScope(m_debuggerContext.get());
+        v8::Handle<v8::Value> callerFrame = m_callFrame.get()->Get(v8String("caller"));
+        if (!callerFrame->IsObject())
+            return 0;
+        m_caller = JavaScriptCallFrame::create(m_debuggerContext.get(), v8::Handle<v8::Object>::Cast(callerFrame));
+    }
+    return m_caller.get();
+}
+
+int JavaScriptCallFrame::sourceID() const
+{
+    v8::HandleScope handleScope;
+    v8::Context::Scope contextScope(m_debuggerContext.get());
+    v8::Handle<v8::Value> result = m_callFrame.get()->Get(v8String("sourceID"));
+    if (result->IsInt32())
+        return result->Int32Value();
+    return 0;
+}
+
+int JavaScriptCallFrame::line() const
+{
+    v8::HandleScope handleScope;
+    v8::Context::Scope contextScope(m_debuggerContext.get());
+    v8::Handle<v8::Value> result = m_callFrame.get()->Get(v8String("line"));
+    if (result->IsInt32())
+        return result->Int32Value();
+    return 0;
+}
+
+String JavaScriptCallFrame::functionName() const
+{
+    v8::HandleScope handleScope;
+    v8::Context::Scope contextScope(m_debuggerContext.get());
+    v8::Handle<v8::Value> result = m_callFrame.get()->Get(v8String("functionName"));
+    return toWebCoreStringWithNullOrUndefinedCheck(result);
+}
+
+v8::Handle<v8::Value> JavaScriptCallFrame::scopeChain() const
+{
+    v8::Handle<v8::Array> scopeChain = v8::Handle<v8::Array>::Cast(m_callFrame.get()->Get(v8String("scopeChain")));
+    v8::Handle<v8::Array> result = v8::Array::New(scopeChain->Length());
+    for (uint32_t i = 0; i < scopeChain->Length(); i++)
+        result->Set(i, scopeChain->Get(i));
+    return result;
+}
+
+int JavaScriptCallFrame::scopeType(int scopeIndex) const
+{
+    v8::Handle<v8::Array> scopeType = v8::Handle<v8::Array>::Cast(m_callFrame.get()->Get(v8String("scopeType")));
+    return scopeType->Get(scopeIndex)->Int32Value();
+}
+
+v8::Handle<v8::Value> JavaScriptCallFrame::thisObject() const
+{
+    return m_callFrame.get()->Get(v8String("thisObject"));
+}
+
+v8::Handle<v8::Value> JavaScriptCallFrame::evaluate(const String& expression)
+{
+    v8::Handle<v8::Function> evalFunction = v8::Handle<v8::Function>::Cast(m_callFrame.get()->Get(v8String("evaluate")));
+    v8::Handle<v8::Value> argv[] = { v8String(expression) };
+    return evalFunction->Call(m_callFrame.get(), 1, argv);
+}
+
+} // namespace WebCore
+
+#endif // ENABLE(JAVASCRIPT_DEBUGGER)