bool Debugger::hasBreakpoint(SourceID sourceID, const TextPosition& position, Breakpoint *hitBreakpoint)
{
if (!m_breakpointsActivated)
return false;
SourceIDToBreakpointsMap::const_iterator it = m_sourceIDToBreakpoints.find(sourceID);
if (it == m_sourceIDToBreakpoints.end())
return false;
unsigned line = position.m_line.zeroBasedInt();
unsigned column = position.m_column.zeroBasedInt();
LineToBreakpointsMap::const_iterator breaksIt = it->value.find(line);
if (breaksIt == it->value.end())
return false;
bool hit = false;
const BreakpointsInLine& breakpoints = breaksIt->value;
unsigned breakpointsCount = breakpoints.size();
unsigned i;
for (i = 0; i < breakpointsCount; i++) {
unsigned breakLine = breakpoints[i].line;
unsigned breakColumn = breakpoints[i].column;
// Since frontend truncates the indent, the first statement in a line must match the breakpoint (line,0).
ASSERT(this == m_currentCallFrame->codeBlock()->globalObject()->debugger());
if ((line != m_lastExecutedLine && line == breakLine && !breakColumn)
|| (line == breakLine && column == breakColumn)) {
hit = true;
break;
}
}
if (!hit)
return false;
if (hitBreakpoint)
*hitBreakpoint = breakpoints[i];
if (breakpoints[i].condition.isEmpty())
return true;
// We cannot stop in the debugger while executing condition code,
// so make it looks like the debugger is already paused.
TemporaryPausedState pausedState(*this);
JSValue exception;
DebuggerCallFrame* debuggerCallFrame = currentDebuggerCallFrame();
JSValue result = debuggerCallFrame->evaluate(breakpoints[i].condition, exception);
// We can lose the debugger while executing JavaScript.
if (!m_currentCallFrame)
return false;
if (exception) {
// An erroneous condition counts as "false".
handleExceptionInBreakpointCondition(m_currentCallFrame, exception);
return false;
}
return result.toBoolean(m_currentCallFrame);
}
void ScriptDebugServer::dispatchDidPause(ScriptDebugListener* listener)
{
ASSERT(isPaused());
DebuggerCallFrame* debuggerCallFrame = currentDebuggerCallFrame();
JSGlobalObject* globalObject = debuggerCallFrame->scope()->globalObject();
JSC::ExecState* state = globalObject->globalExec();
RefPtr<JavaScriptCallFrame> javaScriptCallFrame = JavaScriptCallFrame::create(debuggerCallFrame);
JSValue jsCallFrame = toJS(state, globalObject, javaScriptCallFrame.get());
listener->didPause(state, Deprecated::ScriptValue(state->vm(), jsCallFrame), Deprecated::ScriptValue());
}
void ScriptDebugServer::willExecuteProgram(const DebuggerCallFrame& debuggerCallFrame, intptr_t sourceID, int lineNumber, int columnNumber)
{
if (!m_paused) {
createCallFrame(debuggerCallFrame, sourceID, lineNumber, columnNumber);
pauseIfNeeded(debuggerCallFrame.dynamicGlobalObject());
}
}
void JavaScriptDebugServer::willExecuteProgram(const DebuggerCallFrame& debuggerCallFrame, int sourceID, int lineNumber)
{
if (m_paused)
return;
m_currentCallFrame = JavaScriptCallFrame::create(debuggerCallFrame, m_currentCallFrame, sourceID, lineNumber);
pauseIfNeeded(toPage(debuggerCallFrame.dynamicGlobalObject()));
}
void DebuggerShell::exception(const DebuggerCallFrame& callFrame, intptr_t sourceID, int lineNumber, int column, bool hasHandler) {
ExecState *execState = callFrame.dynamicGlobalObject()->globalExec();
WTF::CString exceptString = callFrame.exception().toString(execState)->getString(execState).ascii();
if (tracing_ || !hasHandler) {
WTF::CString f = WTF::String::format("Exception (%shandled) at "WHEREAMI_FMT": %s",
hasHandler ? "" : "un", WHEREAMI_DATA, exceptString.data()).ascii();
std::string& url = source_map_[sourceID].url;
if (hasHandler) {
dumpToTTY(f);
} else {
dumpToTTYPopup(f);
pause_ASAP_ = true;
}
}
maybeBlockExecution(callFrame);
}
void ScriptDebugServer::dispatchDidPause(ScriptDebugListener* listener)
{
ASSERT(m_paused);
DebuggerCallFrame* debuggerCallFrame = currentDebuggerCallFrame();
JSGlobalObject* globalObject = debuggerCallFrame->scope()->globalObject();
JSC::ExecState* state = globalObject->globalExec();
RefPtr<JavaScriptCallFrame> javaScriptCallFrame = JavaScriptCallFrame::create(debuggerCallFrame);
JSValue jsCallFrame;
{
if (globalObject->inherits(JSDOMGlobalObject::info())) {
JSDOMGlobalObject* domGlobalObject = jsCast<JSDOMGlobalObject*>(globalObject);
JSLockHolder lock(state);
jsCallFrame = toJS(state, domGlobalObject, javaScriptCallFrame.get());
} else
jsCallFrame = jsUndefined();
}
listener->didPause(state, ScriptValue(state->vm(), jsCallFrame), ScriptValue());
}
void ScriptDebugServer::updateCallFrameAndPauseIfNeeded(const DebuggerCallFrame& debuggerCallFrame, intptr_t sourceID, int lineNumber)
{
ASSERT(m_currentCallFrame);
if (!m_currentCallFrame)
return;
TextPosition textPosition(OrdinalNumber::fromOneBasedInt(lineNumber), OrdinalNumber::first());
m_currentCallFrame->update(debuggerCallFrame, sourceID, textPosition);
pauseIfNeeded(debuggerCallFrame.dynamicGlobalObject());
}
void ScriptDebugServer::updateCallFrameAndPauseIfNeeded(const DebuggerCallFrame& debuggerCallFrame, intptr_t sourceID, int lineNumber)
{
ASSERT(m_currentCallFrame);
if (!m_currentCallFrame)
return;
TextPosition0 textPosition(WTF::OneBasedNumber::fromOneBasedInt(lineNumber).convertToZeroBased(), WTF::ZeroBasedNumber::base());
m_currentCallFrame->update(debuggerCallFrame, sourceID, textPosition);
pauseIfNeeded(debuggerCallFrame.dynamicGlobalObject());
}
void JavaScriptDebugServer::atStatement(const DebuggerCallFrame& debuggerCallFrame, int sourceID, int lineNumber)
{
if (m_paused)
return;
ASSERT(m_currentCallFrame);
if (!m_currentCallFrame)
return;
m_currentCallFrame->update(debuggerCallFrame, sourceID, lineNumber);
pauseIfNeeded(toPage(debuggerCallFrame.dynamicGlobalObject()));
}
bool ScriptDebugServer::evaluateBreakpointAction(const ScriptBreakpointAction& breakpointAction) const
{
DebuggerCallFrame* debuggerCallFrame = currentDebuggerCallFrame();
switch (breakpointAction.type) {
case ScriptBreakpointActionTypeLog: {
DOMWindow& window = asJSDOMWindow(debuggerCallFrame->dynamicGlobalObject())->impl();
if (PageConsole* console = window.pageConsole())
console->addMessage(JSMessageSource, LogMessageLevel, breakpointAction.data);
break;
}
case ScriptBreakpointActionTypeEvaluate: {
JSValue exception;
debuggerCallFrame->evaluate(breakpointAction.data, exception);
if (exception)
reportException(debuggerCallFrame->exec(), exception);
break;
}
case ScriptBreakpointActionTypeSound:
systemBeep();
break;
}
return true;
}
void JavaScriptDebugServer::didExecuteProgram(const DebuggerCallFrame& debuggerCallFrame, int sourceID, int lineNumber)
{
if (m_paused)
return;
ASSERT(m_currentCallFrame);
if (!m_currentCallFrame)
return;
m_currentCallFrame->update(debuggerCallFrame, sourceID, lineNumber);
pauseIfNeeded(toPage(debuggerCallFrame.dynamicGlobalObject()));
// Treat stepping over the end of a program like stepping out.
if (m_currentCallFrame == m_pauseOnCallFrame)
m_pauseOnCallFrame = m_currentCallFrame->caller();
m_currentCallFrame = m_currentCallFrame->caller();
}
bool ScriptDebugServer::evaluateBreakpointAction(const ScriptBreakpointAction& breakpointAction)
{
DebuggerCallFrame* debuggerCallFrame = currentDebuggerCallFrame();
switch (breakpointAction.type) {
case ScriptBreakpointActionTypeLog: {
dispatchBreakpointActionLog(debuggerCallFrame->exec(), breakpointAction.data);
break;
}
case ScriptBreakpointActionTypeEvaluate: {
JSValue exception;
debuggerCallFrame->evaluate(breakpointAction.data, exception);
if (exception)
reportException(debuggerCallFrame->exec(), exception);
break;
}
case ScriptBreakpointActionTypeSound:
dispatchBreakpointActionSound(debuggerCallFrame->exec());
break;
case ScriptBreakpointActionTypeProbe: {
JSValue exception;
JSValue result = debuggerCallFrame->evaluate(breakpointAction.data, exception);
if (exception)
reportException(debuggerCallFrame->exec(), exception);
JSC::ExecState* state = debuggerCallFrame->scope()->globalObject()->globalExec();
Deprecated::ScriptValue wrappedResult = Deprecated::ScriptValue(state->vm(), exception ? exception : result);
dispatchDidSampleProbe(state, breakpointAction.identifier, wrappedResult);
break;
}
default:
ASSERT_NOT_REACHED();
}
return true;
}
void ScriptDebugServer::createCallFrameAndPauseIfNeeded(const DebuggerCallFrame& debuggerCallFrame, intptr_t sourceID, int lineNumber)
{
TextPosition textPosition(OrdinalNumber::fromOneBasedInt(lineNumber), OrdinalNumber::first());
m_currentCallFrame = JavaScriptCallFrame::create(debuggerCallFrame, m_currentCallFrame, sourceID, textPosition);
pauseIfNeeded(debuggerCallFrame.dynamicGlobalObject());
}
void ScriptDebugServer::createCallFrameAndPauseIfNeeded(const DebuggerCallFrame& debuggerCallFrame, intptr_t sourceID, int lineNumber)
{
TextPosition0 textPosition(WTF::OneBasedNumber::fromOneBasedInt(lineNumber).convertToZeroBased(), WTF::ZeroBasedNumber::base());
m_currentCallFrame = JavaScriptCallFrame::create(debuggerCallFrame, m_currentCallFrame, sourceID, textPosition);
pauseIfNeeded(debuggerCallFrame.dynamicGlobalObject());
}