1 /* 2 * Copyright (C) 2010 Google Inc. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY 15 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 16 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 17 * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY 18 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 19 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 20 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND 21 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 23 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 24 */ 25 26 #ifndef DictionaryHelperForBindings_h 27 #define DictionaryHelperForBindings_h 28 29 #include "Source/bindings/core/v8/Dictionary.h" 30 31 namespace blink { 32 33 template <typename T> 34 struct DictionaryHelperTraits { 35 }; 36 37 template <template <typename> class PointerType, typename T> 38 bool DictionaryHelper::get(const Dictionary& dictionary, const String& key, PointerType<T>& value) 39 { 40 v8::Local<v8::Value> v8Value; 41 if (!dictionary.get(key, v8Value)) 42 return false; 43 44 value = DictionaryHelperTraits<T>::type::toImplWithTypeCheck(dictionary.isolate(), v8Value); 45 return true; 46 } 47 48 template <template <typename> class PointerType, typename T> 49 bool DictionaryHelper::convert(const Dictionary& dictionary, Dictionary::ConversionContext& context, const String& key, PointerType<T>& value) 50 { 51 Dictionary::ConversionContextScope scope(context); 52 53 if (!DictionaryHelper::get(dictionary, key, value)) 54 return true; 55 56 if (value) 57 return true; 58 59 v8::Local<v8::Value> v8Value; 60 dictionary.get(key, v8Value); 61 if (context.isNullable() && blink::isUndefinedOrNull(v8Value)) 62 return true; 63 64 context.throwTypeError(ExceptionMessages::incorrectPropertyType(key, "does not have a " + context.typeName() + " type.")); 65 return false; 66 } 67 68 } // namespace blink 69 70 #endif // DictionaryHelperForBindings_h 71
