Implement OscillatorNode.type= for Dartium.

Source/bindings/dart/custom/DartOscillatorNodeCustom.cpp

 // Copyright 2013, 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 19 matching lines @@
 #include "config.h"
 
 #if ENABLE(WEB_AUDIO)
 
 #include "DartOscillatorNode.h"
 
 namespace WebCore {
 
 namespace DartOscillatorNodeInternal {
 
-void typeSetter(Dart_NativeArguments)
+void typeSetter(Dart_NativeArguments args)
 {
-    // FIXME: proper implementation.
-    DART_UNIMPLEMENTED();
+    Dart_Handle exception = 0;
+    {
+        OscillatorNode* receiver = DartDOMWrapper::receiver<OscillatorNode>(args);
+
+        String type = DartUtilities::dartToString(Dart_GetNativeArgument(args, 1), exception);

[siva, 2013/10/19 00:03:48]

you could use DartUtilities::dartToString(args, 1, exception) here.

[rmacnak, 2013/10/21 23:44:47]

Done.

+        if (exception)
+            goto fail;
+
+        if (type == "sine" || type == "square" || type == "sawtooth" || type == "triangle") {
+            receiver->setType(type);
+            return;
+        }
+
+        exception = Dart_NewStringFromCString("Illegal OscillatorNode type");
+    }
+
+fail:
+    Dart_ThrowException(exception);
+    ASSERT_NOT_REACHED();
 }
 
 }
 
 }
 
 #endif // ENABLE(WEB_AUDIO)