Merge DevTools Refactor CL to Blink36

Source/bindings/common/ScriptValue.h

Index: Source/bindings/common/ScriptValue.h
diff --git a/Source/bindings/common/ScriptValue.h b/Source/bindings/common/ScriptValue.h
index 95a6ac95d0427c944843c8005bdb83e4f6593923..cba00e0baa204c091097053d6c523fb5a9b95c39 100644
--- a/Source/bindings/common/ScriptValue.h
+++ b/Source/bindings/common/ScriptValue.h
@@ -38,6 +38,7 @@
 #include "wtf/PassRefPtr.h"
 #include "wtf/RefPtr.h"
 #include "wtf/text/WTFString.h"
+#include <dart_debugger_api.h>
 #include <v8.h>
 
 namespace WebCore {
@@ -173,6 +174,99 @@ private:
     RefPtr<AbstractScriptValue> m_implScriptValue;
 };
 
+// FIXMEDART: where should we define this class that holds either a V8 or Dart
+// stack trace?
+class StackTrace {
+public:
+    explicit StackTrace()
+    {
+        m_isJavaScript = true;
+        m_dartStackTrace = 0;
+    }
+
+    explicit StackTrace(const ScriptValue& stackTrace)
+    {
+        m_isJavaScript = true;
+        m_scriptValue = stackTrace;
+        m_dartStackTrace = 0;
+    }
+
+    explicit StackTrace(Dart_StackTrace stackTrace)
+    {
+        m_isJavaScript = false;
+        m_dartStackTrace = stackTrace;
+    }
+
+    bool isJavaScript() const
+    {
+        return m_isJavaScript;
+    }
+
+    ScriptValue asJavaScript() const
+    {
+        ASSERT(m_isJavaScript);
+        return m_scriptValue;
+    }
+
+    Dart_StackTrace asDart() const
+    {
+        ASSERT(!m_isJavaScript);
+        return m_dartStackTrace;
+    }
+
+    bool isNull() const
+    {
+        return m_isJavaScript ? m_scriptValue.isNull() : !m_dartStackTrace;
+    }
+
+private:
+    bool m_isJavaScript;
+    ScriptValue m_scriptValue;
+    Dart_StackTrace m_dartStackTrace;
+};
+
+// FIXMEDART: where should we define this class that holds either a V8 or Dart
+// activation frame?
+class ActivationFrame {
+public:
+    explicit ActivationFrame()
+    {
+        m_isJavaScript = true;
+        m_dartActivationFrame = 0;
+    }
+
+    explicit ActivationFrame(const ScriptValue& activationFrame)
+    {
+        m_isJavaScript = true;
+        m_scriptValue = activationFrame;
+        m_dartActivationFrame = 0;
+    }
+
+    explicit ActivationFrame(Dart_ActivationFrame activationFrame)
+    {
+        m_isJavaScript = false;
+        m_dartActivationFrame = activationFrame;
+    }
+
+    bool isJavaScript() const { return m_isJavaScript; }
+    ScriptValue asJavaScript() const
+    {
+        ASSERT(m_isJavaScript);
+        return m_scriptValue;
+    }
+
+    Dart_ActivationFrame asDart() const
+    {
+        ASSERT(!m_isJavaScript);
+        return m_dartActivationFrame;
+    }
+
+private:
+    bool m_isJavaScript;
+    ScriptValue m_scriptValue;
+    Dart_ActivationFrame m_dartActivationFrame;
+};
+
 } // namespace WebCore
 
 #endif // ScriptValue_h