Bring back ScriptDebugServer and associated machinery

sky/engine/core/inspector/JavaScriptCallFrame.h

+/*
+ * 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.
+ */
+
+#ifndef JavaScriptCallFrame_h
+#define JavaScriptCallFrame_h
+
+#include "bindings/core/v8/ScopedPersistent.h"
+#include "bindings/core/v8/ScriptState.h"
+#include "bindings/core/v8/ScriptWrappable.h"
+#include "v8/include/v8.h"
+#include "wtf/RefCounted.h"
+#include "wtf/text/WTFString.h"
+
+namespace blink {
+
+class ScriptValue;
+
+class JavaScriptCallFrame : public RefCounted<JavaScriptCallFrame>, public ScriptWrappable {
+    DEFINE_WRAPPERTYPEINFO();
+public:
+    static PassRefPtr<JavaScriptCallFrame> create(v8::Handle<v8::Context> debuggerContext, v8::Handle<v8::Object> callFrame)
+    {
+        return adoptRef(new JavaScriptCallFrame(debuggerContext, callFrame));
+    }
+    ~JavaScriptCallFrame();
+    void trace(Visitor*);
+
+    JavaScriptCallFrame* caller();
+
+    int sourceID() const;
+    int line() const;
+    int column() const;
+    String scriptName() const;
+    String functionName() const;
+
+    v8::Handle<v8::Value> scopeChain() const;
+    int scopeType(int scopeIndex) const;
+    v8::Handle<v8::Value> thisObject() const;
+    String stepInPositions() const;
+    bool isAtReturn() const;
+    v8::Handle<v8::Value> returnValue() const;
+
+    v8::Handle<v8::Value> evaluateWithExceptionDetails(const String& expression);
+    v8::Handle<v8::Value> restart();
+    ScriptValue setVariableValue(ScriptState*, int scopeNumber, const String& variableName, const ScriptValue& newValue);
+
+    static v8::Handle<v8::Object> createExceptionDetails(v8::Handle<v8::Message>, v8::Isolate*);
+
+private:
+    JavaScriptCallFrame(v8::Handle<v8::Context> debuggerContext, v8::Handle<v8::Object> callFrame);
+
+    int callV8FunctionReturnInt(const char* name) const;
+    String callV8FunctionReturnString(const char* name) const;
+
+    v8::Isolate* m_isolate;
+    RefPtr<JavaScriptCallFrame> m_caller;
+    ScopedPersistent<v8::Context> m_debuggerContext;
+    ScopedPersistent<v8::Object> m_callFrame;
+};
+
+} // namespace blink
+
+#endif // JavaScriptCallFrame_h