1 /* 2 * Copyright (C) 2008 Apple 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 6 * are met: 7 * 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. Neither the name of Apple Computer, Inc. ("Apple") nor the names of 14 * its contributors may be used to endorse or promote products derived 15 * from this software without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY 18 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 19 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 20 * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY 21 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 22 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 23 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND 24 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 */ 28 29 #ifndef JavaScriptDebugServer_h 30 #define JavaScriptDebugServer_h 31 32 #if ENABLE(JAVASCRIPT_DEBUGGER) && USE(JSC) 33 34 #include "Timer.h" 35 #include <debugger/Debugger.h> 36 #include <runtime/UString.h> 37 #include <wtf/HashMap.h> 38 #include <wtf/HashSet.h> 39 #include <wtf/RefPtr.h> 40 41 namespace JSC { 42 class DebuggerCallFrame; 43 class JSGlobalObject; 44 } 45 46 namespace WebCore { 47 48 class Frame; 49 class FrameView; 50 class Page; 51 class PageGroup; 52 class JavaScriptCallFrame; 53 class JavaScriptDebugListener; 54 55 class JavaScriptDebugServer : JSC::Debugger, public Noncopyable { 56 public: 57 static JavaScriptDebugServer& shared(); 58 59 void addListener(JavaScriptDebugListener*); 60 void removeListener(JavaScriptDebugListener*); 61 62 void addListener(JavaScriptDebugListener*, Page*); 63 void removeListener(JavaScriptDebugListener*, Page*); 64 65 void addBreakpoint(intptr_t sourceID, unsigned lineNumber, const JSC::UString& condition); 66 void updateBreakpoint(intptr_t sourceID, unsigned lineNumber, const JSC::UString& condition); 67 void removeBreakpoint(intptr_t sourceID, unsigned lineNumber); 68 bool hasBreakpoint(intptr_t sourceID, unsigned lineNumber) const; 69 void clearBreakpoints(); 70 71 enum PauseOnExceptionsState { 72 DontPauseOnExceptions, 73 PauseOnAllExceptions, 74 PauseOnUncaughtExceptions 75 }; pauseOnExceptionsState()76 PauseOnExceptionsState pauseOnExceptionsState() const { return m_pauseOnExceptionsState; } 77 void setPauseOnExceptionsState(PauseOnExceptionsState); 78 79 void pauseProgram(); 80 void continueProgram(); 81 void stepIntoStatement(); 82 void stepOverStatement(); 83 void stepOutOfFunction(); 84 85 void recompileAllJSFunctionsSoon(); 86 void recompileAllJSFunctions(Timer<JavaScriptDebugServer>* = 0); 87 88 JavaScriptCallFrame* currentCallFrame(); 89 90 void pageCreated(Page*); 91 92 typedef HashSet<JavaScriptDebugListener*> ListenerSet; 93 typedef void (JavaScriptDebugListener::*JavaScriptExecutionCallback)(); 94 95 private: 96 class BreakpointInfo { 97 public: BreakpointInfo(const JSC::UString & condition)98 BreakpointInfo(const JSC::UString& condition) : m_condition(condition) {} 99 const JSC::UString& condition() const; 100 void setCondition(const JSC::UString& condition); 101 private: 102 JSC::UString m_condition; 103 }; 104 105 JavaScriptDebugServer(); 106 ~JavaScriptDebugServer(); 107 hasListeners()108 bool hasListeners() const { return !m_listeners.isEmpty() || !m_pageListenersMap.isEmpty(); } hasGlobalListeners()109 bool hasGlobalListeners() const { return !m_listeners.isEmpty(); } 110 bool hasListenersInterestedInPage(Page*); 111 112 void setJavaScriptPaused(const PageGroup&, bool paused); 113 void setJavaScriptPaused(Page*, bool paused); 114 void setJavaScriptPaused(Frame*, bool paused); 115 void setJavaScriptPaused(FrameView*, bool paused); 116 117 void dispatchFunctionToListeners(JavaScriptExecutionCallback, Page*); 118 void pauseIfNeeded(Page*); 119 BreakpointInfo* breakpointInfo(intptr_t sourceID, unsigned lineNumber) const; 120 void updateBreakpointInfo(BreakpointInfo* info, const JSC::UString& condition); 121 122 virtual void detach(JSC::JSGlobalObject*); 123 124 virtual void sourceParsed(JSC::ExecState*, const JSC::SourceCode&, int errorLine, const JSC::UString& errorMsg); 125 virtual void callEvent(const JSC::DebuggerCallFrame&, intptr_t sourceID, int lineNumber); 126 virtual void atStatement(const JSC::DebuggerCallFrame&, intptr_t sourceID, int firstLine); 127 virtual void returnEvent(const JSC::DebuggerCallFrame&, intptr_t sourceID, int lineNumber); 128 virtual void exception(const JSC::DebuggerCallFrame&, intptr_t sourceID, int lineNumber, bool hasHandler); 129 virtual void willExecuteProgram(const JSC::DebuggerCallFrame&, intptr_t sourceID, int lineno); 130 virtual void didExecuteProgram(const JSC::DebuggerCallFrame&, intptr_t sourceID, int lineno); 131 virtual void didReachBreakpoint(const JSC::DebuggerCallFrame&, intptr_t sourceID, int lineno); 132 133 void didAddListener(Page*); 134 void didRemoveListener(Page*); 135 void didRemoveLastListener(); 136 137 typedef HashMap<Page*, ListenerSet*> PageListenersMap; 138 typedef HashMap<unsigned, BreakpointInfo*> LineToBreakpointInfoMap; 139 typedef HashMap<intptr_t, LineToBreakpointInfoMap*> BreakpointsMap; 140 141 PageListenersMap m_pageListenersMap; 142 ListenerSet m_listeners; 143 bool m_callingListeners; 144 PauseOnExceptionsState m_pauseOnExceptionsState; 145 bool m_pauseOnNextStatement; 146 bool m_paused; 147 bool m_doneProcessingDebuggerEvents; 148 JavaScriptCallFrame* m_pauseOnCallFrame; 149 RefPtr<JavaScriptCallFrame> m_currentCallFrame; 150 BreakpointsMap m_breakpoints; 151 Timer<JavaScriptDebugServer> m_recompileTimer; 152 }; 153 154 } // namespace WebCore 155 156 #endif // ENABLE(JAVASCRIPT_DEBUGGER) 157 158 #endif // JavaScriptDebugServer_h 159