1 /* 2 * Copyright (C) 2009, 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 are 6 * met: 7 * 8 * * Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * * Redistributions in binary form must reproduce the above 11 * copyright notice, this list of conditions and the following disclaimer 12 * in the documentation and/or other materials provided with the 13 * distribution. 14 * * Neither the name of Google Inc. nor the names of its 15 * contributors may be used to endorse or promote products derived from 16 * this software without specific prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29 */ 30 31 #ifndef SerializedScriptValue_h 32 #define SerializedScriptValue_h 33 34 #include "ScriptValue.h" 35 #include <v8.h> 36 #include <wtf/Threading.h> 37 38 namespace WebCore { 39 40 class SerializedScriptValue : public ThreadSafeRefCounted<SerializedScriptValue> { 41 public: 42 static void deserializeAndSetProperty(v8::Handle<v8::Object>, const char* propertyName, 43 v8::PropertyAttribute, SerializedScriptValue*); 44 static void deserializeAndSetProperty(v8::Handle<v8::Object>, const char* propertyName, 45 v8::PropertyAttribute, PassRefPtr<SerializedScriptValue>); 46 47 // If a serialization error occurs (e.g., cyclic input value) this 48 // function returns an empty representation, schedules a V8 exception to 49 // be thrown using v8::ThrowException(), and sets |didThrow|. In this case 50 // the caller must not invoke any V8 operations until control returns to 51 // V8. When serialization is successful, |didThrow| is false. 52 static PassRefPtr<SerializedScriptValue> create(v8::Handle<v8::Value> value, bool& didThrow); 53 static PassRefPtr<SerializedScriptValue> create(v8::Handle<v8::Value>); 54 static PassRefPtr<SerializedScriptValue> createFromWire(String data); 55 static PassRefPtr<SerializedScriptValue> create(String data); 56 static PassRefPtr<SerializedScriptValue> create(); 57 58 static SerializedScriptValue* nullValue(); 59 static SerializedScriptValue* undefinedValue(); 60 61 PassRefPtr<SerializedScriptValue> release(); 62 toWireString()63 String toWireString() const { return m_data; } 64 65 // Deserializes the value (in the current context). Returns a null value in 66 // case of failure. 67 v8::Handle<v8::Value> deserialize(); 68 69 private: 70 enum StringDataMode { 71 StringValue, 72 WireData 73 }; 74 75 SerializedScriptValue(); 76 SerializedScriptValue(v8::Handle<v8::Value>, bool& didThrow); 77 explicit SerializedScriptValue(String wireData); 78 79 String m_data; 80 }; 81 82 } // namespace WebCore 83 84 #endif // SerializedScriptValue_h 85