1 /* 2 * Copyright (c) 2010, Google Inc. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions are 6 * met: 7 * 8 * * Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * * Redistributions in binary form must reproduce the above 11 * copyright notice, this list of conditions and the following disclaimer 12 * in the documentation and/or other materials provided with the 13 * distribution. 14 * * Neither the name of Google Inc. nor the names of its 15 * contributors may be used to endorse or promote products derived from 16 * this software without specific prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29 */ 30 31 #ifndef ScriptDebugServer_h 32 #define ScriptDebugServer_h 33 34 35 #include "InspectorBackendDispatcher.h" 36 #include "bindings/v8/ScopedPersistent.h" 37 #include "core/inspector/ScriptBreakpoint.h" 38 #include "core/inspector/ScriptDebugListener.h" 39 #include <v8-debug.h> 40 #include "wtf/HashMap.h" 41 #include "wtf/Noncopyable.h" 42 #include "wtf/PassOwnPtr.h" 43 #include "wtf/Vector.h" 44 #include "wtf/text/StringHash.h" 45 #include "wtf/text/WTFString.h" 46 47 namespace WebCore { 48 49 class ScriptDebugListener; 50 class ScriptObject; 51 class ScriptState; 52 class ScriptValue; 53 class JavaScriptCallFrame; 54 55 class ScriptDebugServer { 56 WTF_MAKE_NONCOPYABLE(ScriptDebugServer); 57 public: 58 String setBreakpoint(const String& sourceID, const ScriptBreakpoint&, int* actualLineNumber, int* actualColumnNumber, bool interstatementLocation); 59 void removeBreakpoint(const String& breakpointId); 60 void clearBreakpoints(); 61 void setBreakpointsActivated(bool activated); 62 63 enum PauseOnExceptionsState { 64 DontPauseOnExceptions, 65 PauseOnAllExceptions, 66 PauseOnUncaughtExceptions 67 }; 68 PauseOnExceptionsState pauseOnExceptionsState(); 69 void setPauseOnExceptionsState(PauseOnExceptionsState pauseOnExceptionsState); 70 71 void setPauseOnNextStatement(bool pause); 72 bool canBreakProgram(); 73 void breakProgram(); 74 void continueProgram(); 75 void stepIntoStatement(); 76 void stepOverStatement(); 77 void stepOutOfFunction(); 78 79 bool setScriptSource(const String& sourceID, const String& newContent, bool preview, String* error, RefPtr<TypeBuilder::Debugger::SetScriptSourceError>&, ScriptValue* newCallFrames, ScriptObject* result); 80 void updateCallStack(ScriptValue* callFrame); 81 82 void setScriptPreprocessor(const String& preprocessorBody); 83 84 class Task { 85 public: 86 virtual ~Task() { } 87 virtual void run() = 0; 88 }; 89 static void interruptAndRun(PassOwnPtr<Task>, v8::Isolate*); 90 void runPendingTasks(); 91 92 bool isPaused(); 93 bool runningNestedMessageLoop() { return m_runningNestedMessageLoop; } 94 95 v8::Local<v8::Value> functionScopes(v8::Handle<v8::Function>); 96 v8::Local<v8::Value> getInternalProperties(v8::Handle<v8::Object>&); 97 v8::Handle<v8::Value> setFunctionVariableValue(v8::Handle<v8::Value> functionValue, int scopeNumber, const String& variableName, v8::Handle<v8::Value> newValue); 98 99 100 virtual void compileScript(ScriptState*, const String& expression, const String& sourceURL, String* scriptId, String* exceptionMessage); 101 virtual void clearCompiledScripts(); 102 virtual void runScript(ScriptState*, const String& scriptId, ScriptValue* result, bool* wasThrown, String* exceptionMessage); 103 104 protected: 105 explicit ScriptDebugServer(v8::Isolate*); 106 virtual ~ScriptDebugServer(); 107 108 ScriptValue currentCallFrame(); 109 110 virtual ScriptDebugListener* getDebugListenerForContext(v8::Handle<v8::Context>) = 0; 111 virtual void runMessageLoopOnPause(v8::Handle<v8::Context>) = 0; 112 virtual void quitMessageLoopOnPause() = 0; 113 114 static void breakProgramCallback(const v8::FunctionCallbackInfo<v8::Value>& args); 115 void handleProgramBreak(v8::Handle<v8::Object> executionState, v8::Handle<v8::Value> exception, v8::Handle<v8::Array> hitBreakpoints); 116 void handleProgramBreak(const v8::Debug::EventDetails&, v8::Handle<v8::Value> exception, v8::Handle<v8::Array> hitBreakpointNumbers); 117 118 static void v8DebugEventCallback(const v8::Debug::EventDetails& eventDetails); 119 void handleV8DebugEvent(const v8::Debug::EventDetails& eventDetails); 120 121 void dispatchDidParseSource(ScriptDebugListener* listener, v8::Handle<v8::Object> sourceObject); 122 123 void ensureDebuggerScriptCompiled(); 124 125 v8::Local<v8::Value> callDebuggerMethod(const char* functionName, int argc, v8::Handle<v8::Value> argv[]); 126 127 String preprocessSourceCode(const String& sourceCode); 128 129 PauseOnExceptionsState m_pauseOnExceptionsState; 130 ScopedPersistent<v8::Object> m_debuggerScript; 131 ScopedPersistent<v8::Object> m_executionState; 132 v8::Handle<v8::Context> m_pausedContext; 133 bool m_breakpointsActivated; 134 ScopedPersistent<v8::FunctionTemplate> m_breakProgramCallbackTemplate; 135 HashMap<String, OwnPtr<ScopedPersistent<v8::Script> > > m_compiledScripts; 136 v8::Isolate* m_isolate; 137 138 private: 139 PassRefPtr<JavaScriptCallFrame> wrapCallFrames(v8::Handle<v8::Object> executionState, int maximumLimit); 140 bool executeSkipPauseRequest(ScriptDebugListener::SkipPauseRequest, v8::Handle<v8::Object> executionState); 141 142 class ScriptPreprocessor; 143 OwnPtr<ScriptPreprocessor> m_scriptPreprocessor; 144 bool m_runningNestedMessageLoop; 145 }; 146 147 } // namespace WebCore 148 149 150 #endif // ScriptDebugServer_h 151