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/*
* Copyright (C) 2003-2019 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 "runtime_array.h"
#include "JSDOMBinding.h"
#include <JavaScriptCore/ArrayPrototype.h>
#include <JavaScriptCore/Error.h>
#include <JavaScriptCore/PropertyNameArray.h>
using namespace WebCore;
namespace JSC {
const ClassInfo RuntimeArray::s_info = { "RuntimeArray", &Base::s_info, nullptr, nullptr, CREATE_METHOD_TABLE(RuntimeArray) };
RuntimeArray::RuntimeArray(ExecState* exec, Structure* structure)
: JSArray(exec->vm(), structure, 0)
, m_array(0)
{
}
void RuntimeArray::finishCreation(VM& vm, Bindings::Array* array)
{
Base::finishCreation(vm);
ASSERT(inherits(vm, info()));
m_array = array;
}
RuntimeArray::~RuntimeArray()
{
delete getConcreteArray();
}
void RuntimeArray::destroy(JSCell* cell)
{
static_cast<RuntimeArray*>(cell)->RuntimeArray::~RuntimeArray();
}
EncodedJSValue RuntimeArray::lengthGetter(ExecState* exec, EncodedJSValue thisValue, PropertyName)
{
VM& vm = exec->vm();
auto scope = DECLARE_THROW_SCOPE(vm);
RuntimeArray* thisObject = jsDynamicCast<RuntimeArray*>(vm, JSValue::decode(thisValue));
if (!thisObject)
return throwVMTypeError(exec, scope);
return JSValue::encode(jsNumber(thisObject->getLength()));
}
void RuntimeArray::getOwnPropertyNames(JSObject* object, ExecState* exec, PropertyNameArray& propertyNames, EnumerationMode mode)
{
VM& vm = exec->vm();
RuntimeArray* thisObject = jsCast<RuntimeArray*>(object);
unsigned length = thisObject->getLength();
for (unsigned i = 0; i < length; ++i)
propertyNames.add(Identifier::from(vm, i));
if (mode.includeDontEnumProperties())
propertyNames.add(vm.propertyNames->length);
JSObject::getOwnPropertyNames(thisObject, exec, propertyNames, mode);
}
bool RuntimeArray::getOwnPropertySlot(JSObject* object, ExecState* exec, PropertyName propertyName, PropertySlot& slot)
{
VM& vm = exec->vm();
RuntimeArray* thisObject = jsCast<RuntimeArray*>(object);
if (propertyName == vm.propertyNames->length) {
slot.setCacheableCustom(thisObject, PropertyAttribute::DontDelete | PropertyAttribute::ReadOnly | PropertyAttribute::DontEnum, thisObject->lengthGetter);
return true;
}
Optional<uint32_t> index = parseIndex(propertyName);
if (index && index.value() < thisObject->getLength()) {
slot.setValue(thisObject, PropertyAttribute::DontDelete | PropertyAttribute::DontEnum,
thisObject->getConcreteArray()->valueAt(exec, index.value()));
return true;
}
return JSObject::getOwnPropertySlot(thisObject, exec, propertyName, slot);
}
bool RuntimeArray::getOwnPropertySlotByIndex(JSObject* object, ExecState *exec, unsigned index, PropertySlot& slot)
{
RuntimeArray* thisObject = jsCast<RuntimeArray*>(object);
if (index < thisObject->getLength()) {
slot.setValue(thisObject, PropertyAttribute::DontDelete | PropertyAttribute::DontEnum,
thisObject->getConcreteArray()->valueAt(exec, index));
return true;
}
return JSObject::getOwnPropertySlotByIndex(thisObject, exec, index, slot);
}
bool RuntimeArray::put(JSCell* cell, ExecState* exec, PropertyName propertyName, JSValue value, PutPropertySlot& slot)
{
VM& vm = exec->vm();
auto scope = DECLARE_THROW_SCOPE(vm);
RuntimeArray* thisObject = jsCast<RuntimeArray*>(cell);
if (propertyName == vm.propertyNames->length) {
throwException(exec, scope, createRangeError(exec, "Range error"));
return false;
}
if (Optional<uint32_t> index = parseIndex(propertyName))
return thisObject->getConcreteArray()->setValueAt(exec, index.value(), value);
RELEASE_AND_RETURN(scope, JSObject::put(thisObject, exec, propertyName, value, slot));
}
bool RuntimeArray::putByIndex(JSCell* cell, ExecState* exec, unsigned index, JSValue value, bool)
{
VM& vm = exec->vm();
auto scope = DECLARE_THROW_SCOPE(vm);
RuntimeArray* thisObject = jsCast<RuntimeArray*>(cell);
if (index >= thisObject->getLength()) {
throwException(exec, scope, createRangeError(exec, "Range error"));
return false;
}
return thisObject->getConcreteArray()->setValueAt(exec, index, value);
}
bool RuntimeArray::deleteProperty(JSCell*, ExecState*, PropertyName)
{
return false;
}
bool RuntimeArray::deletePropertyByIndex(JSCell*, ExecState*, unsigned)
{
return false;
}
}