Merge DevTools Refactor CL to Blink36

Source/bindings/dart/DartUtilities.cpp

 // Copyright 2011, Google Inc.
 // All rights reserved.
 //
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //    * Redistributions of source code must retain the above copyright
 // notice, this list of conditions and the following disclaimer.
 //    * Redistributions in binary form must reproduce the above
@@ skipping 924 matching lines @@
 }
 
 DOMWindow* DartUtilities::domWindowForCurrentIsolate()
 {
     DartDOMData* domData = DartDOMData::current();
     ASSERT(domData->scriptExecutionContext()->isDocument());
     Document* document = static_cast<Document*>(domData->scriptExecutionContext());
     return document->domWindow();
 }
 
+V8ScriptState* DartUtilities::v8ScriptStateForCurrentIsolate()
+{
+    return V8ScriptState::forMainWorld(domWindowForCurrentIsolate()->frame());
+}
+
 ExecutionContext* DartUtilities::scriptExecutionContext()
 {
     if (Dart_CurrentIsolate())
         return DartDOMData::current()->scriptExecutionContext();
     return 0;
 }
 
 bool DartUtilities::processingUserGesture()
 {
     // FIXME: implement this.
@@ skipping 71 matching lines @@
         // FIXME: Cause of sources tab sometimes interpreting line/column information relative to the page instead of the script tag body?
         const char* scriptName = "undefined";
         scriptCallStackFrames.append(ScriptCallFrame(functionName, scriptName, scriptUrl, lineNumber, columnNumber));
     }
     if (scriptCallStackFrames.isEmpty())
         scriptCallStackFrames.append(ScriptCallFrame("undefined", "undefined", "undefined", 0, 0));
 
     return ScriptCallStack::create(scriptCallStackFrames);
 }
 
+ScriptCallFrame DartUtilities::getTopFrame(Dart_StackTrace stackTrace, Dart_Handle& exception)
+{
+    {
+        uintptr_t frameCount = 0;
+        Dart_Handle result = Dart_StackTraceLength(stackTrace, reinterpret_cast<intptr_t*>(&frameCount));
+        if (Dart_IsError(result)) {
+            exception = result;
+            goto fail;
+        }
+        if (!frameCount) {
+            exception = Dart_NewStringFromCString("Empty stack trace");
+            goto fail;
+        }
+        Dart_ActivationFrame frame = 0;
+        result = Dart_GetActivationFrame(stackTrace, 0, &frame);
+        if (Dart_IsError(result)) {
+            exception = result;
+            goto fail;
+        }
+        ASSERT(frame);
+        return toScriptCallFrame(frame, exception);
+    }
+fail:
+    return ScriptCallFrame("undefined", "undefined", "undefined", 0, 0);
+}
+
+ScriptCallFrame DartUtilities::toScriptCallFrame(Dart_ActivationFrame frame, Dart_Handle& exception)
+{
+    ASSERT(frame);
+    Dart_Handle functionName;
+    Dart_Handle scriptUrl;
+    intptr_t lineNumber = 0;
+    intptr_t columnNumber = 0;
+    Dart_Handle result = Dart_ActivationFrameInfo(frame, &functionName, &scriptUrl, &lineNumber, &columnNumber);
+    if (Dart_IsError(result)) {
+        exception = result;
+        return ScriptCallFrame("undefined", "undefined", "undefined", 0, 0);
+    }
+    return ScriptCallFrame(DartUtilities::toString(functionName), "undefined", DartUtilities::toString(scriptUrl), lineNumber, columnNumber);
+}
+
 PassRefPtr<ScriptCallStack> DartUtilities::createScriptCallStack()
 {
     Dart_StackTrace trace = 0;
     Dart_Handle ALLOW_UNUSED result = Dart_GetStackTrace(&trace);
     ASSERT(!Dart_IsError(result));
     ASSERT(!Dart_IsNull(result));
     ASSERT(trace);
     return createScriptCallStackFromStackTrace(trace);
 }
 
@@ skipping 122 matching lines @@
     if (!v) {
         return 0;
     }
     ASSERT(valueLen > 0 && static_cast<size_t>(valueLen) > strlen(v));
     strncpy(value, v, valueLen);
     value[valueLen - 1] = '\0';
     return strlen(value);
 #endif
 }
 }