author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Mon, 04 Oct 2010 01:32:07 +0300 | |
changeset 2 | 303757a437d3 |
parent 0 | 4f2f89ce4247 |
permissions | -rw-r--r-- |
0
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/* |
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* Copyright (c) 2010, Google Inc. All rights reserved. |
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* |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that the following conditions are |
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* met: |
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* |
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* * Redistributions of source code must retain the above copyright |
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* notice, this list of conditions and the following disclaimer. |
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* * Redistributions in binary form must reproduce the above |
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* copyright notice, this list of conditions and the following disclaimer |
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* in the documentation and/or other materials provided with the |
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* distribution. |
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* * Neither the name of Google Inc. nor the names of its |
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* contributors may be used to endorse or promote products derived from |
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* this software without specific prior written permission. |
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* |
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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*/ |
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|
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#include "config.h" |
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#include "ScriptDebugServer.h" |
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|
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#if ENABLE(JAVASCRIPT_DEBUGGER) |
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#include "Frame.h" |
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#include "JavaScriptCallFrame.h" |
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#include "Page.h" |
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#include "ScriptDebugListener.h" |
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#include "V8Binding.h" |
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#include "V8DOMWindow.h" |
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#include "V8Proxy.h" |
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#include <wtf/StdLibExtras.h> |
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namespace WebCore { |
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static Frame* retrieveFrame(v8::Handle<v8::Context> context) |
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{ |
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if (context.IsEmpty()) |
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return 0; |
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// Test that context has associated global dom window object. |
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v8::Handle<v8::Object> global = context->Global(); |
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if (global.IsEmpty()) |
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return 0; |
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global = V8DOMWrapper::lookupDOMWrapper(V8DOMWindow::GetTemplate(), global); |
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if (global.IsEmpty()) |
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return 0; |
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return V8Proxy::retrieveFrame(context); |
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} |
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ScriptDebugServer& ScriptDebugServer::shared() |
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{ |
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DEFINE_STATIC_LOCAL(ScriptDebugServer, server, ()); |
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return server; |
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} |
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ScriptDebugServer::ScriptDebugServer() |
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: m_pauseOnExceptionsState(DontPauseOnExceptions) |
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, m_pausedPage(0) |
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, m_enabled(true) |
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{ |
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} |
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void ScriptDebugServer::setDebuggerScriptSource(const String& scriptSource) |
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{ |
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m_debuggerScriptSource = scriptSource; |
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} |
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void ScriptDebugServer::addListener(ScriptDebugListener* listener, Page* page) |
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{ |
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if (!m_enabled) |
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return; |
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V8Proxy* proxy = V8Proxy::retrieve(page->mainFrame()); |
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if (!proxy) |
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return; |
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|
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v8::HandleScope scope; |
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v8::Local<v8::Context> debuggerContext = v8::Debug::GetDebugContext(); |
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v8::Context::Scope contextScope(debuggerContext); |
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if (!m_listenersMap.size()) { |
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ensureDebuggerScriptCompiled(); |
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ASSERT(!m_debuggerScript.get()->IsUndefined()); |
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v8::Debug::SetDebugEventListener2(&ScriptDebugServer::v8DebugEventCallback); |
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} |
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m_listenersMap.set(page, listener); |
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v8::Local<v8::Context> context = proxy->mainWorldContext(); |
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103 |
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v8::Handle<v8::Function> getScriptsFunction = v8::Local<v8::Function>::Cast(m_debuggerScript.get()->Get(v8::String::New("getScripts"))); |
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v8::Handle<v8::Value> argv[] = { context->GetData() }; |
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v8::Handle<v8::Value> value = getScriptsFunction->Call(m_debuggerScript.get(), 1, argv); |
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if (value.IsEmpty()) |
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return; |
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ASSERT(!value->IsUndefined() && value->IsArray()); |
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v8::Handle<v8::Array> scriptsArray = v8::Handle<v8::Array>::Cast(value); |
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for (unsigned i = 0; i < scriptsArray->Length(); ++i) |
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dispatchDidParseSource(listener, v8::Handle<v8::Object>::Cast(scriptsArray->Get(v8::Integer::New(i)))); |
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} |
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|
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void ScriptDebugServer::removeListener(ScriptDebugListener* listener, Page* page) |
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{ |
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if (!m_listenersMap.contains(page)) |
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return; |
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|
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if (m_pausedPage == page) |
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continueProgram(); |
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|
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m_listenersMap.remove(page); |
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124 |
|
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if (m_listenersMap.isEmpty()) |
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v8::Debug::SetDebugEventListener(0); |
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// FIXME: Remove all breakpoints set by the agent. |
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} |
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129 |
|
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bool ScriptDebugServer::setBreakpoint(const String& sourceID, ScriptBreakpoint breakpoint, unsigned lineNumber, unsigned* actualLineNumber) |
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{ |
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v8::HandleScope scope; |
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v8::Local<v8::Context> debuggerContext = v8::Debug::GetDebugContext(); |
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v8::Context::Scope contextScope(debuggerContext); |
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|
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v8::Local<v8::Object> args = v8::Object::New(); |
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args->Set(v8::String::New("scriptId"), v8String(sourceID)); |
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args->Set(v8::String::New("lineNumber"), v8::Integer::New(lineNumber)); |
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args->Set(v8::String::New("condition"), v8String(breakpoint.condition)); |
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args->Set(v8::String::New("enabled"), v8::Boolean::New(breakpoint.enabled)); |
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141 |
|
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v8::Handle<v8::Function> setBreakpointFunction = v8::Local<v8::Function>::Cast(m_debuggerScript.get()->Get(v8::String::New("setBreakpoint"))); |
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v8::Handle<v8::Value> result = v8::Debug::Call(setBreakpointFunction, args); |
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if (!result->IsNumber()) |
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return false; |
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ASSERT(result->Int32Value() >= 0); |
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*actualLineNumber = result->Int32Value(); |
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return true; |
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} |
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150 |
|
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void ScriptDebugServer::removeBreakpoint(const String& sourceID, unsigned lineNumber) |
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{ |
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v8::HandleScope scope; |
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v8::Local<v8::Context> debuggerContext = v8::Debug::GetDebugContext(); |
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v8::Context::Scope contextScope(debuggerContext); |
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|
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v8::Local<v8::Object> args = v8::Object::New(); |
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args->Set(v8::String::New("scriptId"), v8String(sourceID)); |
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args->Set(v8::String::New("lineNumber"), v8::Integer::New(lineNumber)); |
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|
160 |
|
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v8::Handle<v8::Function> removeBreakpointFunction = v8::Local<v8::Function>::Cast(m_debuggerScript.get()->Get(v8::String::New("removeBreakpoint"))); |
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v8::Debug::Call(removeBreakpointFunction, args); |
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163 |
} |
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|
164 |
|
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void ScriptDebugServer::clearBreakpoints() |
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166 |
{ |
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ensureDebuggerScriptCompiled(); |
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v8::HandleScope scope; |
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v8::Local<v8::Context> debuggerContext = v8::Debug::GetDebugContext(); |
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v8::Context::Scope contextScope(debuggerContext); |
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|
171 |
|
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v8::Handle<v8::Function> clearBreakpoints = v8::Local<v8::Function>::Cast(m_debuggerScript.get()->Get(v8::String::New("clearBreakpoints"))); |
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v8::Debug::Call(clearBreakpoints); |
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} |
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|
175 |
|
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void ScriptDebugServer::setBreakpointsActivated(bool enabled) |
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{ |
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ensureDebuggerScriptCompiled(); |
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v8::HandleScope scope; |
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v8::Local<v8::Context> debuggerContext = v8::Debug::GetDebugContext(); |
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v8::Context::Scope contextScope(debuggerContext); |
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182 |
|
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v8::Local<v8::Object> args = v8::Object::New(); |
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args->Set(v8::String::New("enabled"), v8::Boolean::New(enabled)); |
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|
185 |
v8::Handle<v8::Function> setBreakpointsActivated = v8::Local<v8::Function>::Cast(m_debuggerScript.get()->Get(v8::String::New("setBreakpointsActivated"))); |
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v8::Debug::Call(setBreakpointsActivated, args); |
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} |
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|
188 |
|
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ScriptDebugServer::PauseOnExceptionsState ScriptDebugServer::pauseOnExceptionsState() |
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190 |
{ |
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ensureDebuggerScriptCompiled(); |
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192 |
v8::HandleScope scope; |
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v8::Context::Scope contextScope(v8::Debug::GetDebugContext()); |
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|
194 |
|
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v8::Handle<v8::Function> function = v8::Local<v8::Function>::Cast(m_debuggerScript.get()->Get(v8::String::New("pauseOnExceptionsState"))); |
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v8::Handle<v8::Value> argv[] = { v8::Handle<v8::Value>() }; |
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v8::Handle<v8::Value> result = function->Call(m_debuggerScript.get(), 0, argv); |
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return static_cast<ScriptDebugServer::PauseOnExceptionsState>(result->Int32Value()); |
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|
199 |
} |
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void ScriptDebugServer::setPauseOnExceptionsState(PauseOnExceptionsState pauseOnExceptionsState) |
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{ |
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ensureDebuggerScriptCompiled(); |
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v8::HandleScope scope; |
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v8::Context::Scope contextScope(v8::Debug::GetDebugContext()); |
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v8::Handle<v8::Function> setPauseOnExceptionsFunction = v8::Local<v8::Function>::Cast(m_debuggerScript.get()->Get(v8::String::New("setPauseOnExceptionsState"))); |
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v8::Handle<v8::Value> argv[] = { v8::Int32::New(pauseOnExceptionsState) }; |
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setPauseOnExceptionsFunction->Call(m_debuggerScript.get(), 1, argv); |
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} |
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void ScriptDebugServer::continueProgram() |
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{ |
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if (m_pausedPage) |
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m_clientMessageLoop->quitNow(); |
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didResume(); |
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} |
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|
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void ScriptDebugServer::stepIntoStatement() |
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{ |
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ASSERT(m_pausedPage); |
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v8::Handle<v8::Function> function = v8::Local<v8::Function>::Cast(m_debuggerScript.get()->Get(v8::String::New("stepIntoStatement"))); |
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v8::Handle<v8::Value> argv[] = { m_executionState.get() }; |
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function->Call(m_debuggerScript.get(), 1, argv); |
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continueProgram(); |
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} |
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|
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void ScriptDebugServer::stepOverStatement() |
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{ |
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ASSERT(m_pausedPage); |
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v8::Handle<v8::Function> function = v8::Local<v8::Function>::Cast(m_debuggerScript.get()->Get(v8::String::New("stepOverStatement"))); |
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v8::Handle<v8::Value> argv[] = { m_executionState.get() }; |
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function->Call(m_debuggerScript.get(), 1, argv); |
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continueProgram(); |
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} |
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|
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void ScriptDebugServer::stepOutOfFunction() |
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{ |
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ASSERT(m_pausedPage); |
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v8::Handle<v8::Function> function = v8::Local<v8::Function>::Cast(m_debuggerScript.get()->Get(v8::String::New("stepOutOfFunction"))); |
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v8::Handle<v8::Value> argv[] = { m_executionState.get() }; |
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function->Call(m_debuggerScript.get(), 1, argv); |
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continueProgram(); |
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} |
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|
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bool ScriptDebugServer::editScriptSource(const String& sourceID, const String& newContent, String& newSourceOrErrorMessage) |
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{ |
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ensureDebuggerScriptCompiled(); |
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v8::HandleScope scope; |
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|
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OwnPtr<v8::Context::Scope> contextScope; |
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if (!m_pausedPage) |
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contextScope.set(new v8::Context::Scope(v8::Debug::GetDebugContext())); |
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|
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v8::Handle<v8::Function> function = v8::Local<v8::Function>::Cast(m_debuggerScript.get()->Get(v8::String::New("editScriptSource"))); |
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v8::Handle<v8::Value> argv[] = { v8String(sourceID), v8String(newContent) }; |
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|
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v8::TryCatch tryCatch; |
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tryCatch.SetVerbose(false); |
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v8::Handle<v8::Value> result = function->Call(m_debuggerScript.get(), 2, argv); |
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if (tryCatch.HasCaught()) { |
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v8::Local<v8::Message> message = tryCatch.Message(); |
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if (!message.IsEmpty()) |
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newSourceOrErrorMessage = toWebCoreStringWithNullOrUndefinedCheck(message->Get()); |
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return false; |
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} |
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ASSERT(!result.IsEmpty()); |
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newSourceOrErrorMessage = toWebCoreStringWithNullOrUndefinedCheck(result); |
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|
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// Call stack may have changed after if the edited function was on the stack. |
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if (m_currentCallFrame) |
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m_currentCallFrame.clear(); |
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return true; |
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} |
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|
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PassRefPtr<JavaScriptCallFrame> ScriptDebugServer::currentCallFrame() |
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{ |
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if (!m_currentCallFrame) { |
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v8::Handle<v8::Function> currentCallFrameFunction = v8::Local<v8::Function>::Cast(m_debuggerScript.get()->Get(v8::String::New("currentCallFrame"))); |
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v8::Handle<v8::Value> argv[] = { m_executionState.get() }; |
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v8::Handle<v8::Value> currentCallFrameV8 = currentCallFrameFunction->Call(m_debuggerScript.get(), 1, argv); |
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m_currentCallFrame = JavaScriptCallFrame::create(v8::Debug::GetDebugContext(), v8::Handle<v8::Object>::Cast(currentCallFrameV8)); |
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} |
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return m_currentCallFrame; |
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} |
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|
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void ScriptDebugServer::setEnabled(bool value) |
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{ |
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m_enabled = value; |
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} |
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|
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bool ScriptDebugServer::isDebuggerAlwaysEnabled() |
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{ |
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return m_enabled; |
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} |
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|
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void ScriptDebugServer::v8DebugEventCallback(const v8::Debug::EventDetails& eventDetails) |
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{ |
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ScriptDebugServer::shared().handleV8DebugEvent(eventDetails); |
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} |
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|
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void ScriptDebugServer::handleV8DebugEvent(const v8::Debug::EventDetails& eventDetails) |
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{ |
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v8::DebugEvent event = eventDetails.GetEvent(); |
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if (event != v8::Break && event != v8::Exception && event != v8::AfterCompile) |
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return; |
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307 |
|
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v8::Handle<v8::Context> eventContext = eventDetails.GetEventContext(); |
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ASSERT(!eventContext.IsEmpty()); |
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|
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Frame* frame = retrieveFrame(eventContext); |
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if (frame) { |
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ScriptDebugListener* listener = m_listenersMap.get(frame->page()); |
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if (listener) { |
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v8::HandleScope scope; |
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if (event == v8::AfterCompile) { |
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v8::Context::Scope contextScope(v8::Debug::GetDebugContext()); |
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v8::Handle<v8::Function> onAfterCompileFunction = v8::Local<v8::Function>::Cast(m_debuggerScript.get()->Get(v8::String::New("getAfterCompileScript"))); |
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v8::Handle<v8::Value> argv[] = { eventDetails.GetEventData() }; |
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v8::Handle<v8::Value> value = onAfterCompileFunction->Call(m_debuggerScript.get(), 1, argv); |
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ASSERT(value->IsObject()); |
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v8::Handle<v8::Object> object = v8::Handle<v8::Object>::Cast(value); |
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dispatchDidParseSource(listener, object); |
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} else if (event == v8::Break || event == v8::Exception) { |
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if (event == v8::Exception) { |
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v8::Local<v8::StackTrace> stackTrace = v8::StackTrace::CurrentStackTrace(1); |
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// Stack trace is empty in case of syntax error. Silently continue execution in such cases. |
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if (!stackTrace->GetFrameCount()) |
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return; |
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} |
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331 |
|
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// Don't allow nested breaks. |
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if (m_pausedPage) |
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return; |
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m_executionState.set(eventDetails.GetExecutionState()); |
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m_pausedPage = frame->page(); |
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ScriptState* currentCallFrameState = mainWorldScriptState(frame); |
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listener->didPause(currentCallFrameState); |
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|
339 |
|
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// Wait for continue or step command. |
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m_clientMessageLoop->run(m_pausedPage); |
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ASSERT(!m_pausedPage); |
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|
343 |
|
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// The listener may have been removed in the nested loop. |
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if (ScriptDebugListener* listener = m_listenersMap.get(frame->page())) |
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listener->didContinue(); |
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} |
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} |
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} |
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} |
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|
351 |
|
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void ScriptDebugServer::dispatchDidParseSource(ScriptDebugListener* listener, v8::Handle<v8::Object> object) |
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{ |
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listener->didParseSource( |
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toWebCoreStringWithNullOrUndefinedCheck(object->Get(v8::String::New("id"))), |
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toWebCoreStringWithNullOrUndefinedCheck(object->Get(v8::String::New("name"))), |
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toWebCoreStringWithNullOrUndefinedCheck(object->Get(v8::String::New("source"))), |
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object->Get(v8::String::New("lineOffset"))->ToInteger()->Value(), |
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static_cast<ScriptWorldType>(object->Get(v8::String::New("scriptWorldType"))->Int32Value())); |
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} |
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|
361 |
|
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void ScriptDebugServer::ensureDebuggerScriptCompiled() |
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363 |
{ |
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if (m_debuggerScript.get().IsEmpty()) { |
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v8::HandleScope scope; |
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v8::Local<v8::Context> debuggerContext = v8::Debug::GetDebugContext(); |
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v8::Context::Scope contextScope(debuggerContext); |
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m_debuggerScript.set(v8::Handle<v8::Object>::Cast(v8::Script::Compile(v8String(m_debuggerScriptSource))->Run())); |
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|
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} |
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370 |
} |
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|
371 |
|
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void ScriptDebugServer::didResume() |
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{ |
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m_currentCallFrame.clear(); |
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m_executionState.clear(); |
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m_pausedPage = 0; |
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} |
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|
378 |
|
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} // namespace WebCore |
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380 |
|
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#endif // ENABLE(JAVASCRIPT_DEBUGGER) |