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 #include "config.h" 32 #include "JavaScriptCallFrame.h" 33 34 #if ENABLE(JAVASCRIPT_DEBUGGER) 35 36 #include "V8Binding.h" 37 38 namespace WebCore { 39 40 JavaScriptCallFrame::JavaScriptCallFrame(v8::Handle<v8::Context> debuggerContext, v8::Handle<v8::Object> callFrame) 41 : m_debuggerContext(debuggerContext) 42 , m_callFrame(callFrame) 43 { 44 } 45 46 JavaScriptCallFrame::~JavaScriptCallFrame() 47 { 48 } 49 50 JavaScriptCallFrame* JavaScriptCallFrame::caller() 51 { 52 if (!m_caller) { 53 v8::HandleScope handleScope; 54 v8::Context::Scope contextScope(m_debuggerContext.get()); 55 v8::Handle<v8::Value> callerFrame = m_callFrame.get()->Get(v8String("caller")); 56 if (!callerFrame->IsObject()) 57 return 0; 58 m_caller = JavaScriptCallFrame::create(m_debuggerContext.get(), v8::Handle<v8::Object>::Cast(callerFrame)); 59 } 60 return m_caller.get(); 61 } 62 63 int JavaScriptCallFrame::sourceID() const 64 { 65 v8::HandleScope handleScope; 66 v8::Context::Scope contextScope(m_debuggerContext.get()); 67 v8::Handle<v8::Value> result = m_callFrame.get()->Get(v8String("sourceID")); 68 if (result->IsInt32()) 69 return result->Int32Value(); 70 return 0; 71 } 72 73 int JavaScriptCallFrame::line() const 74 { 75 v8::HandleScope handleScope; 76 v8::Context::Scope contextScope(m_debuggerContext.get()); 77 v8::Handle<v8::Value> result = m_callFrame.get()->Get(v8String("line")); 78 if (result->IsInt32()) 79 return result->Int32Value(); 80 return 0; 81 } 82 83 int JavaScriptCallFrame::column() const 84 { 85 v8::HandleScope handleScope; 86 v8::Context::Scope contextScope(m_debuggerContext.get()); 87 v8::Handle<v8::Value> result = m_callFrame.get()->Get(v8String("column")); 88 if (result->IsInt32()) 89 return result->Int32Value(); 90 return 0; 91 } 92 93 String JavaScriptCallFrame::functionName() const 94 { 95 v8::HandleScope handleScope; 96 v8::Context::Scope contextScope(m_debuggerContext.get()); 97 v8::Handle<v8::Value> result = m_callFrame.get()->Get(v8String("functionName")); 98 return toWebCoreStringWithNullOrUndefinedCheck(result); 99 } 100 101 v8::Handle<v8::Value> JavaScriptCallFrame::scopeChain() const 102 { 103 v8::Handle<v8::Array> scopeChain = v8::Handle<v8::Array>::Cast(m_callFrame.get()->Get(v8String("scopeChain"))); 104 v8::Handle<v8::Array> result = v8::Array::New(scopeChain->Length()); 105 for (uint32_t i = 0; i < scopeChain->Length(); i++) 106 result->Set(i, scopeChain->Get(i)); 107 return result; 108 } 109 110 int JavaScriptCallFrame::scopeType(int scopeIndex) const 111 { 112 v8::Handle<v8::Array> scopeType = v8::Handle<v8::Array>::Cast(m_callFrame.get()->Get(v8String("scopeType"))); 113 return scopeType->Get(scopeIndex)->Int32Value(); 114 } 115 116 v8::Handle<v8::Value> JavaScriptCallFrame::thisObject() const 117 { 118 return m_callFrame.get()->Get(v8String("thisObject")); 119 } 120 121 v8::Handle<v8::Value> JavaScriptCallFrame::evaluate(const String& expression) 122 { 123 v8::Handle<v8::Function> evalFunction = v8::Handle<v8::Function>::Cast(m_callFrame.get()->Get(v8String("evaluate"))); 124 v8::Handle<v8::Value> argv[] = { v8String(expression) }; 125 return evalFunction->Call(m_callFrame.get(), 1, argv); 126 } 127 128 } // namespace WebCore 129 130 #endif // ENABLE(JAVASCRIPT_DEBUGGER) 131
