Add UDP support to dart:io

runtime/bin/dartutils.cc

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #include "bin/dartutils.h"
 
 #include "include/dart_api.h"
 #include "include/dart_native_api.h"
 
 #include "platform/assert.h"
@@ skipping 88 matching lines @@
   const char* cstring = NULL;
   Dart_Handle result = Dart_StringToCString(str_obj, &cstring);
   ASSERT(!Dart_IsError(result));
   return cstring;
 }
 
 
 bool DartUtils::GetBooleanValue(Dart_Handle bool_obj) {
   bool value = false;
   Dart_Handle result = Dart_BooleanValue(bool_obj, &value);
-  ASSERT(!Dart_IsError(result));
+  if (Dart_IsError(result)) Dart_PropagateError(result);
   return value;
 }
 
 
 void DartUtils::SetIntegerField(Dart_Handle handle,
                                 const char* name,
                                 intptr_t val) {
   Dart_Handle result = Dart_SetField(handle,
                                      NewString(name),
                                      Dart_NewInteger(val));
@@ skipping 928 matching lines @@
       new CObjectString(CObject::NewString(os_error->message()));
   CObjectArray* result = new CObjectArray(CObject::NewArray(3));
   result->SetAt(0, new CObjectInt32(CObject::NewInt32(kOSError)));
   result->SetAt(1, new CObjectInt32(CObject::NewInt32(os_error->code())));
   result->SetAt(2, error_message);
   return result;
 }
 
 }  // namespace bin
 }  // namespace dart