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112 lines
4.6 KiB
C++
112 lines
4.6 KiB
C++
/*
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* Copyright (C) 2009, 2010 Google Inc. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following disclaimer
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* in the documentation and/or other materials provided with the
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* distribution.
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* * Neither the name of Google Inc. nor the names of its
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* contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef SerializedScriptValue_h
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#define SerializedScriptValue_h
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#include "bindings/core/v8/ScriptValue.h"
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#include "wtf/HashMap.h"
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#include "wtf/ThreadSafeRefCounted.h"
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#include <v8.h>
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namespace WTF {
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class ArrayBuffer;
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class ArrayBufferContents;
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}
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namespace blink {
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class ExceptionState;
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typedef Vector<RefPtr<WTF::ArrayBuffer>, 1> ArrayBufferArray;
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class SerializedScriptValue final : public ThreadSafeRefCounted<SerializedScriptValue> {
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public:
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// Increment this for each incompatible change to the wire format.
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// Version 2: Added StringUCharTag for UChar v8 strings.
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// Version 3: Switched to using uuids as blob data identifiers.
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// Version 4: Extended File serialization to be complete.
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// Version 5: Added CryptoKeyTag for Key objects.
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// Version 6: Added indexed serialization for File, Blob, and FileList.
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// Version 7: Extended File serialization with user visibility.
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static const uint32_t wireFormatVersion = 7;
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~SerializedScriptValue();
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// If a serialization error occurs (e.g., cyclic input value) this
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// function returns an empty representation, schedules a V8 exception to
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// be thrown using v8::ThrowException(), and sets |didThrow|. In this case
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// the caller must not invoke any V8 operations until control returns to
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// V8. When serialization is successful, |didThrow| is false.
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static PassRefPtr<SerializedScriptValue> create(v8::Handle<v8::Value>, ArrayBufferArray*, ExceptionState&, v8::Isolate*);
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static PassRefPtr<SerializedScriptValue> createFromWire(const String&);
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static PassRefPtr<SerializedScriptValue> createFromWireBytes(const Vector<uint8_t>&);
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static PassRefPtr<SerializedScriptValue> create(const String&);
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static PassRefPtr<SerializedScriptValue> create(const String&, v8::Isolate*);
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static PassRefPtr<SerializedScriptValue> create();
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static PassRefPtr<SerializedScriptValue> create(const ScriptValue&, ExceptionState&, v8::Isolate*);
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// Never throws exceptions.
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static PassRefPtr<SerializedScriptValue> createAndSwallowExceptions(v8::Handle<v8::Value>, v8::Isolate*);
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static PassRefPtr<SerializedScriptValue> nullValue();
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String toWireString() const { return m_data; }
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void toWireBytes(Vector<char>&) const;
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// Deserializes the value (in the current context). Returns a null value in
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// case of failure.
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v8::Handle<v8::Value> deserialize();
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v8::Handle<v8::Value> deserialize(v8::Isolate*);
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private:
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enum StringDataMode {
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StringValue,
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WireData
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};
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typedef Vector<WTF::ArrayBufferContents, 1> ArrayBufferContentsArray;
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SerializedScriptValue();
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SerializedScriptValue(v8::Handle<v8::Value>, ArrayBufferArray*, ExceptionState&, v8::Isolate*);
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explicit SerializedScriptValue(const String& wireData);
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static PassOwnPtr<ArrayBufferContentsArray> transferArrayBuffers(ArrayBufferArray&, ExceptionState&, v8::Isolate*);
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String m_data;
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OwnPtr<ArrayBufferContentsArray> m_arrayBufferContentsArray;
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intptr_t m_externallyAllocatedMemory;
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};
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} // namespace blink
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#endif // SerializedScriptValue_h
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