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| 1 /* | |
| 2 * Copyright (c) 2010-2011 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 "bindings/v8/ScriptDebugServer.h" | |
| 33 | |
| 34 #include "bindings/core/v8/V8JavaScriptCallFrame.h" | |
| 35 #include "bindings/v8/ScopedPersistent.h" | |
| 36 #include "bindings/v8/ScriptCallStackFactory.h" | |
| 37 #include "bindings/v8/ScriptController.h" | |
| 38 #include "bindings/v8/ScriptSourceCode.h" | |
| 39 #include "bindings/v8/ScriptValue.h" | |
| 40 #include "bindings/v8/V8Binding.h" | |
| 41 #include "bindings/v8/V8ScriptRunner.h" | |
| 42 #include "core/DebuggerScriptSource.h" | |
| 43 #include "core/inspector/JavaScriptCallFrame.h" | |
| 44 #include "core/inspector/ScriptDebugListener.h" | |
| 45 #include "platform/JSONValues.h" | |
| 46 #include "wtf/StdLibExtras.h" | |
| 47 #include "wtf/Vector.h" | |
| 48 #include "wtf/dtoa/utils.h" | |
| 49 #include "wtf/text/CString.h" | |
| 50 | |
| 51 namespace WebCore { | |
| 52 | |
| 53 namespace { | |
| 54 | |
| 55 class ClientDataImpl : public v8::Debug::ClientData { | |
| 56 public: | |
| 57 ClientDataImpl(PassOwnPtr<ScriptDebugServer::Task> task) : m_task(task) { } | |
| 58 virtual ~ClientDataImpl() { } | |
| 59 ScriptDebugServer::Task* task() const { return m_task.get(); } | |
| 60 private: | |
| 61 OwnPtr<ScriptDebugServer::Task> m_task; | |
| 62 }; | |
| 63 | |
| 64 const char stepIntoV8MethodName[] = "stepIntoStatement"; | |
| 65 const char stepOutV8MethodName[] = "stepOutOfFunction"; | |
| 66 } | |
| 67 | |
| 68 v8::Local<v8::Value> ScriptDebugServer::callDebuggerMethod(const char* functionN
ame, int argc, v8::Handle<v8::Value> argv[]) | |
| 69 { | |
| 70 v8::Handle<v8::Object> debuggerScript = m_debuggerScript.newLocal(m_isolate)
; | |
| 71 v8::Handle<v8::Function> function = v8::Local<v8::Function>::Cast(debuggerSc
ript->Get(v8AtomicString(m_isolate, functionName))); | |
| 72 ASSERT(m_isolate->InContext()); | |
| 73 return V8ScriptRunner::callInternalFunction(function, debuggerScript, argc,
argv, m_isolate); | |
| 74 } | |
| 75 | |
| 76 ScriptDebugServer::ScriptDebugServer(v8::Isolate* isolate) | |
| 77 : m_pauseOnExceptionsState(DontPauseOnExceptions) | |
| 78 , m_breakpointsActivated(true) | |
| 79 , m_isolate(isolate) | |
| 80 , m_runningNestedMessageLoop(false) | |
| 81 { | |
| 82 } | |
| 83 | |
| 84 ScriptDebugServer::~ScriptDebugServer() | |
| 85 { | |
| 86 } | |
| 87 | |
| 88 String ScriptDebugServer::setBreakpoint(const String& sourceID, const ScriptBrea
kpoint& scriptBreakpoint, int* actualLineNumber, int* actualColumnNumber, bool i
nterstatementLocation) | |
| 89 { | |
| 90 v8::HandleScope scope(m_isolate); | |
| 91 v8::Local<v8::Context> debuggerContext = v8::Debug::GetDebugContext(); | |
| 92 v8::Context::Scope contextScope(debuggerContext); | |
| 93 | |
| 94 v8::Local<v8::Object> info = v8::Object::New(m_isolate); | |
| 95 info->Set(v8AtomicString(m_isolate, "sourceID"), v8String(debuggerContext->G
etIsolate(), sourceID)); | |
| 96 info->Set(v8AtomicString(m_isolate, "lineNumber"), v8::Integer::New(debugger
Context->GetIsolate(), scriptBreakpoint.lineNumber)); | |
| 97 info->Set(v8AtomicString(m_isolate, "columnNumber"), v8::Integer::New(debugg
erContext->GetIsolate(), scriptBreakpoint.columnNumber)); | |
| 98 info->Set(v8AtomicString(m_isolate, "interstatementLocation"), v8Boolean(int
erstatementLocation, debuggerContext->GetIsolate())); | |
| 99 info->Set(v8AtomicString(m_isolate, "condition"), v8String(debuggerContext->
GetIsolate(), scriptBreakpoint.condition)); | |
| 100 | |
| 101 v8::Handle<v8::Function> setBreakpointFunction = v8::Local<v8::Function>::Ca
st(m_debuggerScript.newLocal(m_isolate)->Get(v8AtomicString(m_isolate, "setBreak
point"))); | |
| 102 v8::Handle<v8::Value> breakpointId = v8::Debug::Call(setBreakpointFunction,
info); | |
| 103 if (breakpointId.IsEmpty() || !breakpointId->IsString()) | |
| 104 return ""; | |
| 105 *actualLineNumber = info->Get(v8AtomicString(m_isolate, "lineNumber"))->Int3
2Value(); | |
| 106 *actualColumnNumber = info->Get(v8AtomicString(m_isolate, "columnNumber"))->
Int32Value(); | |
| 107 return toCoreString(breakpointId.As<v8::String>()); | |
| 108 } | |
| 109 | |
| 110 void ScriptDebugServer::removeBreakpoint(const String& breakpointId) | |
| 111 { | |
| 112 v8::HandleScope scope(m_isolate); | |
| 113 v8::Local<v8::Context> debuggerContext = v8::Debug::GetDebugContext(); | |
| 114 v8::Context::Scope contextScope(debuggerContext); | |
| 115 | |
| 116 v8::Local<v8::Object> info = v8::Object::New(m_isolate); | |
| 117 info->Set(v8AtomicString(m_isolate, "breakpointId"), v8String(debuggerContex
t->GetIsolate(), breakpointId)); | |
| 118 | |
| 119 v8::Handle<v8::Function> removeBreakpointFunction = v8::Local<v8::Function>:
:Cast(m_debuggerScript.newLocal(m_isolate)->Get(v8AtomicString(m_isolate, "remov
eBreakpoint"))); | |
| 120 v8::Debug::Call(removeBreakpointFunction, info); | |
| 121 } | |
| 122 | |
| 123 void ScriptDebugServer::clearBreakpoints() | |
| 124 { | |
| 125 ensureDebuggerScriptCompiled(); | |
| 126 v8::HandleScope scope(m_isolate); | |
| 127 v8::Local<v8::Context> debuggerContext = v8::Debug::GetDebugContext(); | |
| 128 v8::Context::Scope contextScope(debuggerContext); | |
| 129 | |
| 130 v8::Handle<v8::Function> clearBreakpoints = v8::Local<v8::Function>::Cast(m_
debuggerScript.newLocal(m_isolate)->Get(v8AtomicString(m_isolate, "clearBreakpoi
nts"))); | |
| 131 v8::Debug::Call(clearBreakpoints); | |
| 132 } | |
| 133 | |
| 134 void ScriptDebugServer::setBreakpointsActivated(bool activated) | |
| 135 { | |
| 136 ensureDebuggerScriptCompiled(); | |
| 137 v8::HandleScope scope(m_isolate); | |
| 138 v8::Local<v8::Context> debuggerContext = v8::Debug::GetDebugContext(); | |
| 139 v8::Context::Scope contextScope(debuggerContext); | |
| 140 | |
| 141 v8::Local<v8::Object> info = v8::Object::New(m_isolate); | |
| 142 info->Set(v8AtomicString(m_isolate, "enabled"), v8::Boolean::New(m_isolate,
activated)); | |
| 143 v8::Handle<v8::Function> setBreakpointsActivated = v8::Local<v8::Function>::
Cast(m_debuggerScript.newLocal(m_isolate)->Get(v8AtomicString(m_isolate, "setBre
akpointsActivated"))); | |
| 144 v8::Debug::Call(setBreakpointsActivated, info); | |
| 145 | |
| 146 m_breakpointsActivated = activated; | |
| 147 } | |
| 148 | |
| 149 ScriptDebugServer::PauseOnExceptionsState ScriptDebugServer::pauseOnExceptionsSt
ate() | |
| 150 { | |
| 151 ensureDebuggerScriptCompiled(); | |
| 152 v8::HandleScope scope(m_isolate); | |
| 153 v8::Context::Scope contextScope(v8::Debug::GetDebugContext()); | |
| 154 | |
| 155 v8::Handle<v8::Value> argv[] = { v8Undefined() }; | |
| 156 v8::Handle<v8::Value> result = callDebuggerMethod("pauseOnExceptionsState",
0, argv); | |
| 157 return static_cast<ScriptDebugServer::PauseOnExceptionsState>(result->Int32V
alue()); | |
| 158 } | |
| 159 | |
| 160 void ScriptDebugServer::setPauseOnExceptionsState(PauseOnExceptionsState pauseOn
ExceptionsState) | |
| 161 { | |
| 162 ensureDebuggerScriptCompiled(); | |
| 163 v8::HandleScope scope(m_isolate); | |
| 164 v8::Context::Scope contextScope(v8::Debug::GetDebugContext()); | |
| 165 | |
| 166 v8::Handle<v8::Value> argv[] = { v8::Int32::New(m_isolate, pauseOnExceptions
State) }; | |
| 167 callDebuggerMethod("setPauseOnExceptionsState", 1, argv); | |
| 168 } | |
| 169 | |
| 170 void ScriptDebugServer::setPauseOnNextStatement(bool pause) | |
| 171 { | |
| 172 ASSERT(!isPaused()); | |
| 173 if (pause) | |
| 174 v8::Debug::DebugBreak(m_isolate); | |
| 175 else | |
| 176 v8::Debug::CancelDebugBreak(m_isolate); | |
| 177 } | |
| 178 | |
| 179 bool ScriptDebugServer::canBreakProgram() | |
| 180 { | |
| 181 if (!m_breakpointsActivated) | |
| 182 return false; | |
| 183 return m_isolate->InContext(); | |
| 184 } | |
| 185 | |
| 186 void ScriptDebugServer::breakProgram() | |
| 187 { | |
| 188 if (!canBreakProgram()) | |
| 189 return; | |
| 190 | |
| 191 v8::HandleScope scope(m_isolate); | |
| 192 if (m_breakProgramCallbackTemplate.isEmpty()) { | |
| 193 v8::Handle<v8::FunctionTemplate> templ = v8::FunctionTemplate::New(m_iso
late); | |
| 194 templ->SetCallHandler(&ScriptDebugServer::breakProgramCallback, v8::Exte
rnal::New(m_isolate, this)); | |
| 195 m_breakProgramCallbackTemplate.set(m_isolate, templ); | |
| 196 } | |
| 197 | |
| 198 v8::Handle<v8::Function> breakProgramFunction = m_breakProgramCallbackTempla
te.newLocal(m_isolate)->GetFunction(); | |
| 199 v8::Debug::Call(breakProgramFunction); | |
| 200 } | |
| 201 | |
| 202 void ScriptDebugServer::continueProgram() | |
| 203 { | |
| 204 if (isPaused()) | |
| 205 quitMessageLoopOnPause(); | |
| 206 m_pausedScriptState.clear(); | |
| 207 m_executionState.Clear(); | |
| 208 } | |
| 209 | |
| 210 void ScriptDebugServer::stepIntoStatement() | |
| 211 { | |
| 212 ASSERT(isPaused()); | |
| 213 ASSERT(!m_executionState.IsEmpty()); | |
| 214 v8::HandleScope handleScope(m_isolate); | |
| 215 v8::Handle<v8::Value> argv[] = { m_executionState }; | |
| 216 callDebuggerMethod(stepIntoV8MethodName, 1, argv); | |
| 217 continueProgram(); | |
| 218 } | |
| 219 | |
| 220 void ScriptDebugServer::stepOverStatement() | |
| 221 { | |
| 222 ASSERT(isPaused()); | |
| 223 ASSERT(!m_executionState.IsEmpty()); | |
| 224 v8::HandleScope handleScope(m_isolate); | |
| 225 v8::Handle<v8::Value> argv[] = { m_executionState }; | |
| 226 callDebuggerMethod("stepOverStatement", 1, argv); | |
| 227 continueProgram(); | |
| 228 } | |
| 229 | |
| 230 void ScriptDebugServer::stepOutOfFunction() | |
| 231 { | |
| 232 ASSERT(isPaused()); | |
| 233 ASSERT(!m_executionState.IsEmpty()); | |
| 234 v8::HandleScope handleScope(m_isolate); | |
| 235 v8::Handle<v8::Value> argv[] = { m_executionState }; | |
| 236 callDebuggerMethod(stepOutV8MethodName, 1, argv); | |
| 237 continueProgram(); | |
| 238 } | |
| 239 | |
| 240 bool ScriptDebugServer::setScriptSource(const String& sourceID, const String& ne
wContent, bool preview, String* error, RefPtr<TypeBuilder::Debugger::SetScriptSo
urceError>& errorData, ScriptValue* newCallFrames, RefPtr<JSONObject>* result) | |
| 241 { | |
| 242 class EnableLiveEditScope { | |
| 243 public: | |
| 244 explicit EnableLiveEditScope(v8::Isolate* isolate) : m_isolate(isolate)
{ v8::Debug::SetLiveEditEnabled(m_isolate, true); } | |
| 245 ~EnableLiveEditScope() { v8::Debug::SetLiveEditEnabled(m_isolate, false)
; } | |
| 246 private: | |
| 247 v8::Isolate* m_isolate; | |
| 248 }; | |
| 249 | |
| 250 ensureDebuggerScriptCompiled(); | |
| 251 v8::HandleScope scope(m_isolate); | |
| 252 | |
| 253 OwnPtr<v8::Context::Scope> contextScope; | |
| 254 v8::Handle<v8::Context> debuggerContext = v8::Debug::GetDebugContext(); | |
| 255 if (!isPaused()) | |
| 256 contextScope = adoptPtr(new v8::Context::Scope(debuggerContext)); | |
| 257 | |
| 258 v8::Handle<v8::Value> argv[] = { v8String(m_isolate, sourceID), v8String(m_i
solate, newContent), v8Boolean(preview, m_isolate) }; | |
| 259 | |
| 260 v8::Local<v8::Value> v8result; | |
| 261 { | |
| 262 EnableLiveEditScope enableLiveEditScope(m_isolate); | |
| 263 v8::TryCatch tryCatch; | |
| 264 tryCatch.SetVerbose(false); | |
| 265 v8result = callDebuggerMethod("liveEditScriptSource", 3, argv); | |
| 266 if (tryCatch.HasCaught()) { | |
| 267 v8::Local<v8::Message> message = tryCatch.Message(); | |
| 268 if (!message.IsEmpty()) | |
| 269 *error = toCoreStringWithUndefinedOrNullCheck(message->Get()); | |
| 270 else | |
| 271 *error = "Unknown error."; | |
| 272 return false; | |
| 273 } | |
| 274 } | |
| 275 ASSERT(!v8result.IsEmpty()); | |
| 276 v8::Local<v8::Object> resultTuple = v8result->ToObject(); | |
| 277 int code = static_cast<int>(resultTuple->Get(0)->ToInteger()->Value()); | |
| 278 switch (code) { | |
| 279 case 0: | |
| 280 { | |
| 281 v8::Local<v8::Value> normalResult = resultTuple->Get(1); | |
| 282 RefPtr<JSONValue> jsonResult = v8ToJSONValue(m_isolate, normalResult
, JSONValue::maxDepth); | |
| 283 if (jsonResult) | |
| 284 *result = jsonResult->asObject(); | |
| 285 // Call stack may have changed after if the edited function was on t
he stack. | |
| 286 if (!preview && isPaused()) | |
| 287 *newCallFrames = currentCallFrames(); | |
| 288 return true; | |
| 289 } | |
| 290 // Compile error. | |
| 291 case 1: | |
| 292 { | |
| 293 RefPtr<TypeBuilder::Debugger::SetScriptSourceError::CompileError> co
mpileError = | |
| 294 TypeBuilder::Debugger::SetScriptSourceError::CompileError::creat
e() | |
| 295 .setMessage(toCoreStringWithUndefinedOrNullCheck(resultTuple
->Get(2))) | |
| 296 .setLineNumber(resultTuple->Get(3)->ToInteger()->Value()) | |
| 297 .setColumnNumber(resultTuple->Get(4)->ToInteger()->Value()); | |
| 298 | |
| 299 *error = toCoreStringWithUndefinedOrNullCheck(resultTuple->Get(1)); | |
| 300 errorData = TypeBuilder::Debugger::SetScriptSourceError::create(); | |
| 301 errorData->setCompileError(compileError); | |
| 302 return false; | |
| 303 } | |
| 304 } | |
| 305 *error = "Unknown error."; | |
| 306 return false; | |
| 307 } | |
| 308 | |
| 309 int ScriptDebugServer::frameCount() | |
| 310 { | |
| 311 ASSERT(isPaused()); | |
| 312 ASSERT(!m_executionState.IsEmpty()); | |
| 313 v8::Handle<v8::Value> argv[] = { m_executionState }; | |
| 314 v8::Handle<v8::Value> result = callDebuggerMethod("frameCount", WTF_ARRAY_LE
NGTH(argv), argv); | |
| 315 if (result->IsInt32()) | |
| 316 return result->Int32Value(); | |
| 317 return 0; | |
| 318 } | |
| 319 | |
| 320 PassRefPtrWillBeRawPtr<JavaScriptCallFrame> ScriptDebugServer::wrapCallFrames(in
t maximumLimit, ScopeInfoDetails scopeDetails) | |
| 321 { | |
| 322 const int scopeBits = 2; | |
| 323 COMPILE_ASSERT(NoScopes < (1 << scopeBits), not_enough_bits_to_encode_ScopeI
nfoDetails); | |
| 324 | |
| 325 ASSERT(maximumLimit >= 0); | |
| 326 int data = (maximumLimit << scopeBits) | scopeDetails; | |
| 327 v8::Handle<v8::Value> currentCallFrameV8; | |
| 328 if (m_executionState.IsEmpty()) { | |
| 329 v8::Handle<v8::Function> currentCallFrameFunction = v8::Local<v8::Functi
on>::Cast(m_debuggerScript.newLocal(m_isolate)->Get(v8AtomicString(m_isolate, "c
urrentCallFrame"))); | |
| 330 currentCallFrameV8 = v8::Debug::Call(currentCallFrameFunction, v8::Integ
er::New(m_isolate, data)); | |
| 331 } else { | |
| 332 v8::Handle<v8::Value> argv[] = { m_executionState, v8::Integer::New(m_is
olate, data) }; | |
| 333 currentCallFrameV8 = callDebuggerMethod("currentCallFrame", WTF_ARRAY_LE
NGTH(argv), argv); | |
| 334 } | |
| 335 ASSERT(!currentCallFrameV8.IsEmpty()); | |
| 336 if (!currentCallFrameV8->IsObject()) | |
| 337 return nullptr; | |
| 338 return JavaScriptCallFrame::create(v8::Debug::GetDebugContext(), v8::Handle<
v8::Object>::Cast(currentCallFrameV8)); | |
| 339 } | |
| 340 | |
| 341 ScriptValue ScriptDebugServer::currentCallFramesInner(ScopeInfoDetails scopeDeta
ils) | |
| 342 { | |
| 343 if (!m_isolate->InContext()) | |
| 344 return ScriptValue(); | |
| 345 v8::HandleScope handleScope(m_isolate); | |
| 346 | |
| 347 RefPtrWillBeRawPtr<JavaScriptCallFrame> currentCallFrame = wrapCallFrames(0,
scopeDetails); | |
| 348 if (!currentCallFrame) | |
| 349 return ScriptValue(); | |
| 350 | |
| 351 ScriptState* scriptState = m_pausedScriptState ? m_pausedScriptState.get() :
ScriptState::current(m_isolate); | |
| 352 ScriptState::Scope scope(scriptState); | |
| 353 return ScriptValue(scriptState, toV8(currentCallFrame.release(), scriptState
->context()->Global(), m_isolate)); | |
| 354 } | |
| 355 | |
| 356 ScriptValue ScriptDebugServer::currentCallFrames() | |
| 357 { | |
| 358 return currentCallFramesInner(AllScopes); | |
| 359 } | |
| 360 | |
| 361 ScriptValue ScriptDebugServer::currentCallFramesForAsyncStack() | |
| 362 { | |
| 363 return currentCallFramesInner(FastAsyncScopes); | |
| 364 } | |
| 365 | |
| 366 PassRefPtrWillBeRawPtr<JavaScriptCallFrame> ScriptDebugServer::topCallFrameNoSco
pes() | |
| 367 { | |
| 368 return wrapCallFrames(1, NoScopes); | |
| 369 } | |
| 370 | |
| 371 void ScriptDebugServer::interruptAndRun(PassOwnPtr<Task> task, v8::Isolate* isol
ate) | |
| 372 { | |
| 373 v8::Debug::DebugBreakForCommand(isolate, new ClientDataImpl(task)); | |
| 374 } | |
| 375 | |
| 376 void ScriptDebugServer::runPendingTasks() | |
| 377 { | |
| 378 v8::Debug::ProcessDebugMessages(); | |
| 379 } | |
| 380 | |
| 381 static ScriptDebugServer* toScriptDebugServer(v8::Handle<v8::Value> data) | |
| 382 { | |
| 383 void* p = v8::Handle<v8::External>::Cast(data)->Value(); | |
| 384 return static_cast<ScriptDebugServer*>(p); | |
| 385 } | |
| 386 | |
| 387 void ScriptDebugServer::breakProgramCallback(const v8::FunctionCallbackInfo<v8::
Value>& info) | |
| 388 { | |
| 389 ASSERT(2 == info.Length()); | |
| 390 ScriptDebugServer* thisPtr = toScriptDebugServer(info.Data()); | |
| 391 ScriptState* pausedScriptState = ScriptState::current(thisPtr->m_isolate); | |
| 392 v8::Handle<v8::Value> exception; | |
| 393 v8::Handle<v8::Array> hitBreakpoints; | |
| 394 thisPtr->handleProgramBreak(pausedScriptState, v8::Handle<v8::Object>::Cast(
info[0]), exception, hitBreakpoints); | |
| 395 } | |
| 396 | |
| 397 void ScriptDebugServer::handleProgramBreak(ScriptState* pausedScriptState, v8::H
andle<v8::Object> executionState, v8::Handle<v8::Value> exception, v8::Handle<v8
::Array> hitBreakpointNumbers) | |
| 398 { | |
| 399 // Don't allow nested breaks. | |
| 400 if (isPaused()) | |
| 401 return; | |
| 402 | |
| 403 ScriptDebugListener* listener = getDebugListenerForContext(pausedScriptState
->context()); | |
| 404 if (!listener) | |
| 405 return; | |
| 406 | |
| 407 Vector<String> breakpointIds; | |
| 408 if (!hitBreakpointNumbers.IsEmpty()) { | |
| 409 breakpointIds.resize(hitBreakpointNumbers->Length()); | |
| 410 for (size_t i = 0; i < hitBreakpointNumbers->Length(); i++) { | |
| 411 v8::Handle<v8::Value> hitBreakpointNumber = hitBreakpointNumbers->Ge
t(i); | |
| 412 ASSERT(!hitBreakpointNumber.IsEmpty() && hitBreakpointNumber->IsInt3
2()); | |
| 413 breakpointIds[i] = String::number(hitBreakpointNumber->Int32Value())
; | |
| 414 } | |
| 415 } | |
| 416 | |
| 417 m_pausedScriptState = pausedScriptState; | |
| 418 m_executionState = executionState; | |
| 419 ScriptDebugListener::SkipPauseRequest result = listener->didPause(pausedScri
ptState, currentCallFrames(), ScriptValue(pausedScriptState, exception), breakpo
intIds); | |
| 420 if (result == ScriptDebugListener::NoSkip) { | |
| 421 m_runningNestedMessageLoop = true; | |
| 422 runMessageLoopOnPause(pausedScriptState->context()); | |
| 423 m_runningNestedMessageLoop = false; | |
| 424 } | |
| 425 m_pausedScriptState.clear(); | |
| 426 m_executionState.Clear(); | |
| 427 | |
| 428 if (result == ScriptDebugListener::StepInto) { | |
| 429 v8::Handle<v8::Value> argv[] = { executionState }; | |
| 430 callDebuggerMethod(stepIntoV8MethodName, 1, argv); | |
| 431 } else if (result == ScriptDebugListener::StepOut) { | |
| 432 v8::Handle<v8::Value> argv[] = { executionState }; | |
| 433 callDebuggerMethod(stepOutV8MethodName, 1, argv); | |
| 434 } | |
| 435 } | |
| 436 | |
| 437 void ScriptDebugServer::v8DebugEventCallback(const v8::Debug::EventDetails& even
tDetails) | |
| 438 { | |
| 439 ScriptDebugServer* thisPtr = toScriptDebugServer(eventDetails.GetCallbackDat
a()); | |
| 440 thisPtr->handleV8DebugEvent(eventDetails); | |
| 441 } | |
| 442 | |
| 443 void ScriptDebugServer::handleV8DebugEvent(const v8::Debug::EventDetails& eventD
etails) | |
| 444 { | |
| 445 v8::DebugEvent event = eventDetails.GetEvent(); | |
| 446 | |
| 447 if (event == v8::BreakForCommand) { | |
| 448 ClientDataImpl* data = static_cast<ClientDataImpl*>(eventDetails.GetClie
ntData()); | |
| 449 data->task()->run(); | |
| 450 return; | |
| 451 } | |
| 452 | |
| 453 if (event != v8::Break && event != v8::Exception && event != v8::AfterCompil
e && event != v8::BeforeCompile) | |
| 454 return; | |
| 455 | |
| 456 v8::Handle<v8::Context> eventContext = eventDetails.GetEventContext(); | |
| 457 ASSERT(!eventContext.IsEmpty()); | |
| 458 | |
| 459 ScriptDebugListener* listener = getDebugListenerForContext(eventContext); | |
| 460 if (listener) { | |
| 461 v8::HandleScope scope(m_isolate); | |
| 462 v8::Handle<v8::Object> debuggerScript = m_debuggerScript.newLocal(m_isol
ate); | |
| 463 if (event == v8::BeforeCompile) { | |
| 464 preprocessBeforeCompile(eventDetails); | |
| 465 } else if (event == v8::AfterCompile) { | |
| 466 v8::Context::Scope contextScope(v8::Debug::GetDebugContext()); | |
| 467 v8::Handle<v8::Function> getAfterCompileScript = v8::Local<v8::Funct
ion>::Cast(debuggerScript->Get(v8AtomicString(m_isolate, "getAfterCompileScript"
))); | |
| 468 v8::Handle<v8::Value> argv[] = { eventDetails.GetEventData() }; | |
| 469 v8::Handle<v8::Value> value = V8ScriptRunner::callInternalFunction(g
etAfterCompileScript, debuggerScript, WTF_ARRAY_LENGTH(argv), argv, m_isolate); | |
| 470 ASSERT(value->IsObject()); | |
| 471 v8::Handle<v8::Object> object = v8::Handle<v8::Object>::Cast(value); | |
| 472 dispatchDidParseSource(listener, object); | |
| 473 } else if (event == v8::Exception) { | |
| 474 v8::Local<v8::StackTrace> stackTrace = v8::StackTrace::CurrentStackT
race(m_isolate, 1); | |
| 475 // Stack trace is empty in case of syntax error. Silently continue e
xecution in such cases. | |
| 476 if (!stackTrace->GetFrameCount()) | |
| 477 return; | |
| 478 v8::Handle<v8::Object> eventData = eventDetails.GetEventData(); | |
| 479 v8::Handle<v8::Value> exceptionGetterValue = eventData->Get(v8Atomic
String(m_isolate, "exception")); | |
| 480 ASSERT(!exceptionGetterValue.IsEmpty() && exceptionGetterValue->IsFu
nction()); | |
| 481 v8::Handle<v8::Value> exception = V8ScriptRunner::callInternalFuncti
on(v8::Handle<v8::Function>::Cast(exceptionGetterValue), eventData, 0, 0, m_isol
ate); | |
| 482 handleProgramBreak(ScriptState::from(eventContext), eventDetails.Get
ExecutionState(), exception, v8::Handle<v8::Array>()); | |
| 483 } else if (event == v8::Break) { | |
| 484 v8::Handle<v8::Function> getBreakpointNumbersFunction = v8::Local<v8
::Function>::Cast(debuggerScript->Get(v8AtomicString(m_isolate, "getBreakpointNu
mbers"))); | |
| 485 v8::Handle<v8::Value> argv[] = { eventDetails.GetEventData() }; | |
| 486 v8::Handle<v8::Value> hitBreakpoints = V8ScriptRunner::callInternalF
unction(getBreakpointNumbersFunction, debuggerScript, WTF_ARRAY_LENGTH(argv), ar
gv, m_isolate); | |
| 487 ASSERT(hitBreakpoints->IsArray()); | |
| 488 handleProgramBreak(ScriptState::from(eventContext), eventDetails.Get
ExecutionState(), v8::Handle<v8::Value>(), hitBreakpoints.As<v8::Array>()); | |
| 489 } | |
| 490 } | |
| 491 } | |
| 492 | |
| 493 void ScriptDebugServer::dispatchDidParseSource(ScriptDebugListener* listener, v8
::Handle<v8::Object> object) | |
| 494 { | |
| 495 v8::Handle<v8::Value> id = object->Get(v8AtomicString(m_isolate, "id")); | |
| 496 ASSERT(!id.IsEmpty() && id->IsInt32()); | |
| 497 String sourceID = String::number(id->Int32Value()); | |
| 498 | |
| 499 ScriptDebugListener::Script script; | |
| 500 script.url = toCoreStringWithUndefinedOrNullCheck(object->Get(v8AtomicString
(m_isolate, "name"))); | |
| 501 script.source = toCoreStringWithUndefinedOrNullCheck(object->Get(v8AtomicStr
ing(m_isolate, "source"))); | |
| 502 script.sourceMappingURL = toCoreStringWithUndefinedOrNullCheck(object->Get(v
8AtomicString(m_isolate, "sourceMappingURL"))); | |
| 503 script.startLine = object->Get(v8AtomicString(m_isolate, "startLine"))->ToIn
teger()->Value(); | |
| 504 script.startColumn = object->Get(v8AtomicString(m_isolate, "startColumn"))->
ToInteger()->Value(); | |
| 505 script.endLine = object->Get(v8AtomicString(m_isolate, "endLine"))->ToIntege
r()->Value(); | |
| 506 script.endColumn = object->Get(v8AtomicString(m_isolate, "endColumn"))->ToIn
teger()->Value(); | |
| 507 script.isContentScript = object->Get(v8AtomicString(m_isolate, "isContentScr
ipt"))->ToBoolean()->Value(); | |
| 508 | |
| 509 listener->didParseSource(sourceID, script); | |
| 510 } | |
| 511 | |
| 512 void ScriptDebugServer::ensureDebuggerScriptCompiled() | |
| 513 { | |
| 514 if (!m_debuggerScript.isEmpty()) | |
| 515 return; | |
| 516 | |
| 517 v8::HandleScope scope(m_isolate); | |
| 518 v8::Context::Scope contextScope(v8::Debug::GetDebugContext()); | |
| 519 v8::Handle<v8::String> source = v8String(m_isolate, String(reinterpret_cast<
const char*>(DebuggerScriptSource_js), sizeof(DebuggerScriptSource_js))); | |
| 520 v8::Local<v8::Value> value = V8ScriptRunner::compileAndRunInternalScript(sou
rce, m_isolate); | |
| 521 ASSERT(!value.IsEmpty()); | |
| 522 ASSERT(value->IsObject()); | |
| 523 m_debuggerScript.set(m_isolate, v8::Handle<v8::Object>::Cast(value)); | |
| 524 } | |
| 525 | |
| 526 void ScriptDebugServer::discardDebuggerScript() | |
| 527 { | |
| 528 ASSERT(!m_debuggerScript.isEmpty()); | |
| 529 m_debuggerScript.clear(); | |
| 530 } | |
| 531 | |
| 532 v8::Local<v8::Value> ScriptDebugServer::functionScopes(v8::Handle<v8::Function>
function) | |
| 533 { | |
| 534 ensureDebuggerScriptCompiled(); | |
| 535 | |
| 536 v8::Handle<v8::Value> argv[] = { function }; | |
| 537 return callDebuggerMethod("getFunctionScopes", 1, argv); | |
| 538 } | |
| 539 | |
| 540 v8::Local<v8::Value> ScriptDebugServer::getInternalProperties(v8::Handle<v8::Obj
ect>& object) | |
| 541 { | |
| 542 if (m_debuggerScript.isEmpty()) | |
| 543 return v8::Local<v8::Value>::New(m_isolate, v8::Undefined(m_isolate)); | |
| 544 | |
| 545 v8::Handle<v8::Value> argv[] = { object }; | |
| 546 return callDebuggerMethod("getInternalProperties", 1, argv); | |
| 547 } | |
| 548 | |
| 549 v8::Handle<v8::Value> ScriptDebugServer::setFunctionVariableValue(v8::Handle<v8:
:Value> functionValue, int scopeNumber, const String& variableName, v8::Handle<v
8::Value> newValue) | |
| 550 { | |
| 551 v8::Local<v8::Context> debuggerContext = v8::Debug::GetDebugContext(); | |
| 552 if (m_debuggerScript.isEmpty()) | |
| 553 return m_isolate->ThrowException(v8::String::NewFromUtf8(m_isolate, "Deb
ugging is not enabled.")); | |
| 554 | |
| 555 v8::Handle<v8::Value> argv[] = { | |
| 556 functionValue, | |
| 557 v8::Handle<v8::Value>(v8::Integer::New(debuggerContext->GetIsolate(), sc
opeNumber)), | |
| 558 v8String(debuggerContext->GetIsolate(), variableName), | |
| 559 newValue | |
| 560 }; | |
| 561 return callDebuggerMethod("setFunctionVariableValue", 4, argv); | |
| 562 } | |
| 563 | |
| 564 | |
| 565 bool ScriptDebugServer::isPaused() | |
| 566 { | |
| 567 return m_pausedScriptState; | |
| 568 } | |
| 569 | |
| 570 void ScriptDebugServer::compileScript(ScriptState* scriptState, const String& ex
pression, const String& sourceURL, String* scriptId, String* exceptionDetailsTex
t, int* lineNumber, int* columnNumber, RefPtrWillBeRawPtr<ScriptCallStack>* stac
kTrace) | |
| 571 { | |
| 572 if (scriptState->contextIsEmpty()) | |
| 573 return; | |
| 574 ScriptState::Scope scope(scriptState); | |
| 575 | |
| 576 v8::Handle<v8::String> source = v8String(m_isolate, expression); | |
| 577 v8::TryCatch tryCatch; | |
| 578 v8::Local<v8::Script> script = V8ScriptRunner::compileScript(source, sourceU
RL, TextPosition(), 0, m_isolate); | |
| 579 if (tryCatch.HasCaught()) { | |
| 580 v8::Local<v8::Message> message = tryCatch.Message(); | |
| 581 if (!message.IsEmpty()) { | |
| 582 *exceptionDetailsText = toCoreStringWithUndefinedOrNullCheck(message
->Get()); | |
| 583 *lineNumber = message->GetLineNumber(); | |
| 584 *columnNumber = message->GetStartColumn(); | |
| 585 *stackTrace = createScriptCallStack(message->GetStackTrace(), messag
e->GetStackTrace()->GetFrameCount(), m_isolate); | |
| 586 } | |
| 587 return; | |
| 588 } | |
| 589 if (script.IsEmpty()) | |
| 590 return; | |
| 591 | |
| 592 *scriptId = String::number(script->GetUnboundScript()->GetId()); | |
| 593 m_compiledScripts.set(*scriptId, adoptPtr(new ScopedPersistent<v8::Script>(m
_isolate, script))); | |
| 594 } | |
| 595 | |
| 596 void ScriptDebugServer::clearCompiledScripts() | |
| 597 { | |
| 598 m_compiledScripts.clear(); | |
| 599 } | |
| 600 | |
| 601 void ScriptDebugServer::runScript(ScriptState* scriptState, const String& script
Id, ScriptValue* result, bool* wasThrown, String* exceptionDetailsText, int* lin
eNumber, int* columnNumber, RefPtrWillBeRawPtr<ScriptCallStack>* stackTrace) | |
| 602 { | |
| 603 if (!m_compiledScripts.contains(scriptId)) | |
| 604 return; | |
| 605 v8::HandleScope handleScope(m_isolate); | |
| 606 ScopedPersistent<v8::Script>* scriptHandle = m_compiledScripts.get(scriptId)
; | |
| 607 v8::Local<v8::Script> script = scriptHandle->newLocal(m_isolate); | |
| 608 m_compiledScripts.remove(scriptId); | |
| 609 if (script.IsEmpty()) | |
| 610 return; | |
| 611 | |
| 612 if (scriptState->contextIsEmpty()) | |
| 613 return; | |
| 614 ScriptState::Scope scope(scriptState); | |
| 615 v8::TryCatch tryCatch; | |
| 616 v8::Local<v8::Value> value = V8ScriptRunner::runCompiledScript(script, scrip
tState->executionContext(), m_isolate); | |
| 617 *wasThrown = false; | |
| 618 if (tryCatch.HasCaught()) { | |
| 619 *wasThrown = true; | |
| 620 *result = ScriptValue(scriptState, tryCatch.Exception()); | |
| 621 v8::Local<v8::Message> message = tryCatch.Message(); | |
| 622 if (!message.IsEmpty()) { | |
| 623 *exceptionDetailsText = toCoreStringWithUndefinedOrNullCheck(message
->Get()); | |
| 624 *lineNumber = message->GetLineNumber(); | |
| 625 *columnNumber = message->GetStartColumn(); | |
| 626 *stackTrace = createScriptCallStack(message->GetStackTrace(), messag
e->GetStackTrace()->GetFrameCount(), m_isolate); | |
| 627 } | |
| 628 } else { | |
| 629 *result = ScriptValue(scriptState, value); | |
| 630 } | |
| 631 } | |
| 632 | |
| 633 PassOwnPtr<ScriptSourceCode> ScriptDebugServer::preprocess(LocalFrame*, const Sc
riptSourceCode&) | |
| 634 { | |
| 635 return PassOwnPtr<ScriptSourceCode>(); | |
| 636 } | |
| 637 | |
| 638 String ScriptDebugServer::preprocessEventListener(LocalFrame*, const String& sou
rce, const String& url, const String& functionName) | |
| 639 { | |
| 640 return source; | |
| 641 } | |
| 642 | |
| 643 } // namespace WebCore | |
| OLD | NEW |
|---|
Chromium Code Reviews
Issue 351423002:
Moved files under Source/bindings/v8 to Source/bindings/core/v8. (Closed)
Base URL: svn://svn.chromium.org/blink/trunk