DevTools: added injectedScript.evaluateWithDetails, that return exception details if it occured

Source/core/inspector/JavaScriptCallFrame.cpp

Index: Source/core/inspector/JavaScriptCallFrame.cpp
diff --git a/Source/core/inspector/JavaScriptCallFrame.cpp b/Source/core/inspector/JavaScriptCallFrame.cpp
index f01ce098d5c721aa88e782153cacc0d5e3174fa6..821adf0e414a0b0e369dc12d96b976d44279f344 100644
--- a/Source/core/inspector/JavaScriptCallFrame.cpp
+++ b/Source/core/inspector/JavaScriptCallFrame.cpp
@@ -150,12 +150,23 @@ v8::Handle<v8::Value> JavaScriptCallFrame::returnValue() const
     return m_callFrame.newLocal(m_isolate)->Get(v8AtomicString(m_isolate, "returnValue"));
 }
 
-v8::Handle<v8::Value> JavaScriptCallFrame::evaluate(const String& expression)
+v8::Handle<v8::Value> JavaScriptCallFrame::evaluateWithExceptionDetails(const String& expression)
 {
     v8::Handle<v8::Object> callFrame = m_callFrame.newLocal(m_isolate);
     v8::Handle<v8::Function> evalFunction = v8::Handle<v8::Function>::Cast(callFrame->Get(v8AtomicString(m_isolate, "evaluate")));
     v8::Handle<v8::Value> argv[] = { v8String(m_debuggerContext.newLocal(m_isolate)->GetIsolate(), expression) };
-    return evalFunction->Call(callFrame, WTF_ARRAY_LENGTH(argv), argv);
+    v8::TryCatch tryCatch;
+    v8::Handle<v8::Value> result = evalFunction->Call(callFrame, WTF_ARRAY_LENGTH(argv), argv);
+
+    v8::Handle<v8::Object> wrappedResult = v8::Object::New(m_isolate);
+    if (tryCatch.HasCaught()) {
+        wrappedResult->Set(v8::String::NewFromUtf8(m_isolate, "result"), tryCatch.Exception());
+        wrappedResult->Set(v8::String::NewFromUtf8(m_isolate, "exceptionDetails"), createExceptionDetails(tryCatch.Message(), m_isolate));
+    } else {
+        wrappedResult->Set(v8::String::NewFromUtf8(m_isolate, "result"), result);
+        wrappedResult->Set(v8::String::NewFromUtf8(m_isolate, "exceptionDetails"), v8::Undefined(m_isolate));
+    }
+    return wrappedResult;
 }
 
 v8::Handle<v8::Value> JavaScriptCallFrame::restart()
@@ -181,6 +192,20 @@ ScriptValue JavaScriptCallFrame::setVariableValue(ScriptState* scriptState, int
     return ScriptValue(scriptState, setVariableValueFunction->Call(callFrame, WTF_ARRAY_LENGTH(argv), argv));
 }
 
+v8::Handle<v8::Object> JavaScriptCallFrame::createExceptionDetails(v8::Handle<v8::Message> message, v8::Isolate* isolate)
+{
+    v8::Handle<v8::Object> exceptionDetails = v8::Object::New(isolate);
+    exceptionDetails->Set(v8::String::NewFromUtf8(isolate, "text"), message->Get());
+    exceptionDetails->Set(v8::String::NewFromUtf8(isolate, "url"), message->GetScriptOrigin().ResourceName());
+    exceptionDetails->Set(v8::String::NewFromUtf8(isolate, "line"), v8::Integer::New(isolate, message->GetLineNumber()));
+    exceptionDetails->Set(v8::String::NewFromUtf8(isolate, "column"), v8::Integer::New(isolate, message->GetStartColumn()));
+    if (!message->GetStackTrace().IsEmpty())
+        exceptionDetails->Set(v8::String::NewFromUtf8(isolate, "stackTrace"), message->GetStackTrace()->AsArray());
+    else
+        exceptionDetails->Set(v8::String::NewFromUtf8(isolate, "stackTrace"), v8::Undefined(isolate));
+    return exceptionDetails;
+}
+
 void JavaScriptCallFrame::trace(Visitor* visitor)
 {
     visitor->trace(m_caller);