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/*
* Copyright (C) 2013 Apple 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:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "config.h"
#include "JSArrayBuffer.h"
#include "JSCInlines.h"
#include "Reject.h"
namespace JSC {
const ClassInfo JSArrayBuffer::s_info = {
"ArrayBuffer", &Base::s_info, 0, CREATE_METHOD_TABLE(JSArrayBuffer)};
JSArrayBuffer::JSArrayBuffer(VM& vm, Structure* structure, PassRefPtr<ArrayBuffer> arrayBuffer)
: Base(vm, structure)
, m_impl(arrayBuffer.get())
{
}
void JSArrayBuffer::finishCreation(VM& vm)
{
Base::finishCreation(vm);
vm.heap.addReference(this, m_impl);
}
JSArrayBuffer* JSArrayBuffer::create(
VM& vm, Structure* structure, PassRefPtr<ArrayBuffer> passedBuffer)
{
RefPtr<ArrayBuffer> buffer = passedBuffer;
JSArrayBuffer* result =
new (NotNull, allocateCell<JSArrayBuffer>(vm.heap))
JSArrayBuffer(vm, structure, buffer);
result->finishCreation(vm);
return result;
}
Structure* JSArrayBuffer::createStructure(
VM& vm, JSGlobalObject* globalObject, JSValue prototype)
{
return Structure::create(
vm, globalObject, prototype, TypeInfo(ObjectType, StructureFlags), info(),
NonArray);
}
bool JSArrayBuffer::getOwnPropertySlot(
JSObject* object, ExecState* exec, PropertyName propertyName, PropertySlot& slot)
{
JSArrayBuffer* thisObject = jsCast<JSArrayBuffer*>(object);
if (propertyName == exec->propertyNames().byteLength) {
slot.setValue(thisObject, DontDelete | ReadOnly, jsNumber(thisObject->impl()->byteLength()));
return true;
}
return Base::getOwnPropertySlot(thisObject, exec, propertyName, slot);
}
void JSArrayBuffer::put(
JSCell* cell, ExecState* exec, PropertyName propertyName, JSValue value,
PutPropertySlot& slot)
{
JSArrayBuffer* thisObject = jsCast<JSArrayBuffer*>(cell);
if (propertyName == exec->propertyNames().byteLength) {
reject(exec, slot.isStrictMode(), "Attempting to write to a read-only array buffer property.");
return;
}
Base::put(thisObject, exec, propertyName, value, slot);
}
bool JSArrayBuffer::defineOwnProperty(
JSObject* object, ExecState* exec, PropertyName propertyName,
const PropertyDescriptor& descriptor, bool shouldThrow)
{
JSArrayBuffer* thisObject = jsCast<JSArrayBuffer*>(object);
if (propertyName == exec->propertyNames().byteLength)
return reject(exec, shouldThrow, "Attempting to define read-only array buffer property.");
return Base::defineOwnProperty(thisObject, exec, propertyName, descriptor, shouldThrow);
}
bool JSArrayBuffer::deleteProperty(JSCell* cell, ExecState* exec, PropertyName propertyName)
{
JSArrayBuffer* thisObject = jsCast<JSArrayBuffer*>(cell);
if (propertyName == exec->propertyNames().byteLength)
return false;
return Base::deleteProperty(thisObject, exec, propertyName);
}
void JSArrayBuffer::getOwnNonIndexPropertyNames(
JSObject* object, ExecState* exec, PropertyNameArray& array, EnumerationMode mode)
{
JSArrayBuffer* thisObject = jsCast<JSArrayBuffer*>(object);
if (shouldIncludeDontEnumProperties(mode))
array.add(exec->propertyNames().byteLength);
Base::getOwnNonIndexPropertyNames(thisObject, exec, array, mode);
}
} // namespace JSC
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