Cleanup dart to string conversions.

Source/WebCore/bindings/dart/custom/DartLocationCustom.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 28 matching lines @@
 
 namespace DartLocationInternal {
 
 void hrefSetter(Dart_NativeArguments args)
 {
     DartApiScope dartApiScope;
     Dart_Handle exception = 0;
     {
         Location* receiver = DartDOMWrapper::receiver<Location>(args);
 
-        const ParameterAdapter<String> href(Dart_GetNativeArgument(args, 1));
-        if (!href.conversionSuccessful()) {
-            exception = href.exception();
+        DartStringAdapter href = DartUtilities::dartToString(Dart_GetNativeArgument(args, 1), exception);
+        if (exception)
             goto fail;
-        }
 
         receiver->setHref(href, DartUtilities::domWindowForCurrentIsolate(), receiver->frame()->existingDOMWindow());
         return;
     }
 
 fail:
     Dart_ThrowException(exception);
     ASSERT_NOT_REACHED();
 }
 
 void protocolSetter(Dart_NativeArguments args)
 {
     DartApiScope dartApiScope;
     Dart_Handle exception = 0;
     {
         Location* receiver = DartDOMWrapper::receiver<Location>(args);
 
-        const ParameterAdapter<String> protocol(Dart_GetNativeArgument(args, 1));
-        if (!protocol.conversionSuccessful()) {
-            exception = protocol.exception();
+        DartStringAdapter protocol = DartUtilities::dartToString(Dart_GetNativeArgument(args, 1), exception);
+        if (exception)
             goto fail;
-        }
 
         DOMWindow* window = receiver->frame()->existingDOMWindow();
         ASSERT(window == DartUtilities::domWindowForCurrentIsolate());
         ExceptionCode ec = 0;
         receiver->setProtocol(protocol, window, window, ec);
         if (UNLIKELY(ec)) {
             exception = DartDOMWrapper::exceptionCodeToDartException(ec);
             goto fail;
         }
         return;
     }
 
 fail:
     Dart_ThrowException(exception);
     ASSERT_NOT_REACHED();
 }
 
 void hostSetter(Dart_NativeArguments args)
 {
     DartApiScope dartApiScope;
     Dart_Handle exception = 0;
     {
         Location* receiver = DartDOMWrapper::receiver<Location>(args);
 
-        const ParameterAdapter<String> host(Dart_GetNativeArgument(args, 1));
-        if (!host.conversionSuccessful()) {
-            exception = host.exception();
+        DartStringAdapter host = DartUtilities::dartToString(Dart_GetNativeArgument(args, 1), exception);
+        if (exception)
             goto fail;
-        }
 
         DOMWindow* window = receiver->frame()->existingDOMWindow();
         ASSERT(window == DartUtilities::domWindowForCurrentIsolate());
         receiver->setHost(host, window, window);
         return;
     }
 
 fail:
     Dart_ThrowException(exception);
     ASSERT_NOT_REACHED();
 }
 
 void hostnameSetter(Dart_NativeArguments args)
 {
     DartApiScope dartApiScope;
     Dart_Handle exception = 0;
     {
         Location* receiver = DartDOMWrapper::receiver<Location>(args);
 
-        const ParameterAdapter<String> hostname(Dart_GetNativeArgument(args, 1));
-        if (!hostname.conversionSuccessful()) {
-            exception = hostname.exception();
+        DartStringAdapter hostname = DartUtilities::dartToString(Dart_GetNativeArgument(args, 1), exception);
+        if (exception)
             goto fail;
-        }
 
         DOMWindow* window = receiver->frame()->existingDOMWindow();
         ASSERT(window == DartUtilities::domWindowForCurrentIsolate());
         receiver->setHostname(hostname, window, window);
         return;
     }
 
 fail:
     Dart_ThrowException(exception);
     ASSERT_NOT_REACHED();
 }
 
 void portSetter(Dart_NativeArguments args)
 {
     DartApiScope dartApiScope;
     Dart_Handle exception = 0;
     {
         Location* receiver = DartDOMWrapper::receiver<Location>(args);
 
-        const ParameterAdapter<String> port(Dart_GetNativeArgument(args, 1));
-        if (!port.conversionSuccessful()) {
-            exception = port.exception();
+        DartStringAdapter port = DartUtilities::dartToString(Dart_GetNativeArgument(args, 1), exception);
+        if (exception)
             goto fail;
-        }
 
         DOMWindow* window = receiver->frame()->existingDOMWindow();
         ASSERT(window == DartUtilities::domWindowForCurrentIsolate());
         receiver->setPort(port, window, window);
         return;
     }
 
 fail:
     Dart_ThrowException(exception);
     ASSERT_NOT_REACHED();
 }
 
 void pathnameSetter(Dart_NativeArguments args)
 {
     DartApiScope dartApiScope;
     Dart_Handle exception = 0;
     {
         Location* receiver = DartDOMWrapper::receiver<Location>(args);
 
-        const ParameterAdapter<String> pathname(Dart_GetNativeArgument(args, 1));
-        if (!pathname.conversionSuccessful()) {
-            exception = pathname.exception();
+        DartStringAdapter pathname = DartUtilities::dartToString(Dart_GetNativeArgument(args, 1), exception);
+        if (exception)
             goto fail;
-        }
 
         DOMWindow* window = receiver->frame()->existingDOMWindow();
         ASSERT(window == DartUtilities::domWindowForCurrentIsolate());
         receiver->setPathname(pathname, window, window);
         return;
     }
 
 fail:
     Dart_ThrowException(exception);
     ASSERT_NOT_REACHED();
 }
 
 void searchSetter(Dart_NativeArguments args)
 {
     DartApiScope dartApiScope;
     Dart_Handle exception = 0;
     {
         Location* receiver = DartDOMWrapper::receiver<Location>(args);
 
-        const ParameterAdapter<String> search(Dart_GetNativeArgument(args, 1));
-        if (!search.conversionSuccessful()) {
-            exception = search.exception();
+        DartStringAdapter search = DartUtilities::dartToString(Dart_GetNativeArgument(args, 1), exception);
+        if (exception)
             goto fail;
-        }
 
         DOMWindow* window = receiver->frame()->existingDOMWindow();
         ASSERT(window == DartUtilities::domWindowForCurrentIsolate());
         receiver->setSearch(search, window, window);
         return;
     }
 
 fail:
     Dart_ThrowException(exception);
     ASSERT_NOT_REACHED();
 }
 
 void hashSetter(Dart_NativeArguments args)
 {
     DartApiScope dartApiScope;
     Dart_Handle exception = 0;
     {
         Location* receiver = DartDOMWrapper::receiver<Location>(args);
-        const ParameterAdapter<String> hash(Dart_GetNativeArgument(args, 1));
-        if (!hash.conversionSuccessful()) {
-            exception = hash.exception();
+        DartStringAdapter hash = DartUtilities::dartToString(Dart_GetNativeArgument(args, 1), exception);
+        if (exception)
             goto fail;
-        }
 
         DOMWindow* window = receiver->frame()->existingDOMWindow();
         ASSERT(window == DartUtilities::domWindowForCurrentIsolate());
         receiver->setHash(hash, window, window);
         return;
     }
 
 fail:
     Dart_ThrowException(exception);
     ASSERT_NOT_REACHED();
 }
 
 void assignCallback(Dart_NativeArguments args)
 {
     DartApiScope dartApiScope;
     Dart_Handle exception = 0;
     {
         Location* receiver = DartDOMWrapper::receiver<Location>(args);
-        const ParameterAdapter<String> url(Dart_GetNativeArgument(args, 1));
-        if (!url.conversionSuccessful()) {
-            exception = url.exception();
+        DartStringAdapter url = DartUtilities::dartToString(Dart_GetNativeArgument(args, 1), exception);
+        if (exception)
             goto fail;
-        }
 
         DOMWindow* window = receiver->frame()->existingDOMWindow();
         ASSERT(window == DartUtilities::domWindowForCurrentIsolate());
         receiver->assign(url, window, window);
         return;
     }
 
 fail:
     Dart_ThrowException(exception);
     ASSERT_NOT_REACHED();
 }
 
 void replaceCallback(Dart_NativeArguments args)
 {
     DartApiScope dartApiScope;
     Dart_Handle exception = 0;
     {
         Location* receiver = DartDOMWrapper::receiver<Location>(args);
-        const ParameterAdapter<String> url(Dart_GetNativeArgument(args, 1));
-        if (!url.conversionSuccessful()) {
-            exception = url.exception();
+        DartStringAdapter url = DartUtilities::dartToString(Dart_GetNativeArgument(args, 1), exception);
+        if (exception)
             goto fail;
-        }
 
         DOMWindow* window = receiver->frame()->existingDOMWindow();
         ASSERT(window == DartUtilities::domWindowForCurrentIsolate());
         receiver->replace(url, window, window);
         return;
     }
 
 fail:
     Dart_ThrowException(exception);
     ASSERT_NOT_REACHED();
@@ skipping 18 matching lines @@
 
 void valueOfCallback(Dart_NativeArguments args)
 {
     // FIXME: proper implementation.
     DART_UNIMPLEMENTED();
 }
 
 }
 
 }