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/*
* 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 ScriptDebugServer_h
#define ScriptDebugServer_h
#if ENABLE(JAVASCRIPT_DEBUGGER)
#include "OwnHandle.h"
#include "PlatformString.h"
#include "ScriptBreakpoint.h"
#include "ScriptState.h"
#include "StringHash.h"
#include "Timer.h"
#include <v8-debug.h>
#include <wtf/HashMap.h>
#include <wtf/Noncopyable.h>
namespace WebCore {
class JavaScriptCallFrame;
class Page;
class ScriptDebugListener;
class ScriptDebugServer : public Noncopyable {
public:
static ScriptDebugServer& shared();
// Function for retrieving the source name, line number and function name for the top
// JavaScript stack frame.
//
// It will return true if the caller information was successfully retrieved and written
// into the function parameters, otherwise the function will return false. It may
// fail due to a stack overflow in the underlying JavaScript implementation, handling
// of such exception is up to the caller.
static bool topStackFrame(String& sourceName, int& lineNumber, String& functionName);
void addListener(ScriptDebugListener*, Page*);
void removeListener(ScriptDebugListener*, Page*);
void setBreakpoint(const String& sourceID, unsigned lineNumber, ScriptBreakpoint breakpoint);
void removeBreakpoint(const String& sourceID, unsigned lineNumber);
void clearBreakpoints();
void setBreakpointsActivated(bool activated);
enum PauseOnExceptionsState {
DontPauseOnExceptions,
PauseOnAllExceptions,
PauseOnUncaughtExceptions
};
PauseOnExceptionsState pauseOnExceptionsState() const { return m_pauseOnExceptionsState; }
void setPauseOnExceptionsState(PauseOnExceptionsState pauseOnExceptionsState) { m_pauseOnExceptionsState = pauseOnExceptionsState; }
void pauseProgram() { }
void continueProgram();
void stepIntoStatement();
void stepOverStatement();
void stepOutOfFunction();
void recompileAllJSFunctionsSoon() { }
void recompileAllJSFunctions(Timer<ScriptDebugServer>* = 0) { }
ScriptState* currentCallFrameState();
void pageCreated(Page*) { }
// v8-specific methods.
void setDebuggerScriptSource(const String& scriptSource);
typedef void (*MessageLoopDispatchHandler)(const Vector<WebCore::Page*>&);
static void setMessageLoopDispatchHandler(MessageLoopDispatchHandler messageLoopDispatchHandler) { s_messageLoopDispatchHandler = messageLoopDispatchHandler; }
v8::Handle<v8::Value> currentCallFrameV8();
PassRefPtr<JavaScriptCallFrame> currentCallFrame();
private:
ScriptDebugServer();
~ScriptDebugServer() { }
static void onV8DebugMessage(const v8::Debug::Message& message);
static void onV8DebugHostDispatch();
void handleV8DebugMessage(const v8::Debug::Message& message);
void handleV8DebugHostDispatch();
void dispatchDidParseSource(ScriptDebugListener* listener, v8::Handle<v8::Object> sourceObject);
void ensureDebuggerScriptCompiled();
void didResume();
static void createUtilityContext();
// Returns a local handle of the utility context.
static v8::Local<v8::Context> utilityContext()
{
if (s_utilityContext.IsEmpty())
createUtilityContext();
return v8::Local<v8::Context>::New(s_utilityContext);
}
// Utility context holding JavaScript functions used internally.
static v8::Persistent<v8::Context> s_utilityContext;
typedef HashMap<Page*, ScriptDebugListener*> ListenersMap;
ListenersMap m_listenersMap;
typedef HashMap<ScriptDebugListener*, String> ContextDataMap;
ContextDataMap m_contextDataMap;
String m_debuggerScriptSource;
PauseOnExceptionsState m_pauseOnExceptionsState;
OwnHandle<v8::Object> m_debuggerScript;
ScriptState* m_currentCallFrameState;
OwnHandle<v8::Value> m_currentCallFrame;
OwnHandle<v8::Object> m_executionState;
static MessageLoopDispatchHandler s_messageLoopDispatchHandler;
};
} // namespace WebCore
#endif // ENABLE(JAVASCRIPT_DEBUGGER)
#endif // ScriptDebugServer_h
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