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/*
* Copyright (C) 2012 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.
*/
#ifndef JSCTypedArrayStubs_h
#define JSCTypedArrayStubs_h
#include "Float32Array.h"
#include "Float64Array.h"
#include "Int16Array.h"
#include "Int32Array.h"
#include "Int8Array.h"
#include "JSObject.h"
#include "ObjectPrototype.h"
#include "Uint16Array.h"
#include "Uint32Array.h"
#include "Uint8Array.h"
namespace JSC {
#define TYPED_ARRAY(name, type) \
class JS##name##Array : public JSNonFinalObject { \
public: \
typedef JSNonFinalObject Base; \
static JS##name##Array* create(JSC::Structure* structure, JSGlobalObject* globalObject, PassRefPtr<name##Array> impl) \
{ \
JS##name##Array* ptr = new (NotNull, JSC::allocateCell<JS##name##Array>(globalObject->globalData().heap)) JS##name##Array(structure, globalObject, impl); \
ptr->finishCreation(globalObject->globalData()); \
return ptr; \
}\
\
static bool getOwnPropertySlot(JSC::JSCell*, JSC::ExecState*, const JSC::Identifier& propertyName, JSC::PropertySlot&);\
static bool getOwnPropertyDescriptor(JSC::JSObject*, JSC::ExecState*, const JSC::Identifier& propertyName, JSC::PropertyDescriptor&);\
static bool getOwnPropertySlotByIndex(JSC::JSCell*, JSC::ExecState*, unsigned propertyName, JSC::PropertySlot&);\
static void put(JSC::JSCell*, JSC::ExecState*, const JSC::Identifier& propertyName, JSC::JSValue, JSC::PutPropertySlot&);\
static void putByIndex(JSC::JSCell*, JSC::ExecState*, unsigned propertyName, JSC::JSValue);\
static const JSC::ClassInfo s_info;\
\
static JSC::Structure* createStructure(JSC::JSGlobalData& globalData, JSC::JSGlobalObject* globalObject, JSC::JSValue prototype)\
{\
return JSC::Structure::create(globalData, globalObject, prototype, JSC::TypeInfo(JSC::ObjectType, StructureFlags), &s_info);\
}\
\
static void getOwnPropertyNames(JSC::JSObject*, JSC::ExecState*, JSC::PropertyNameArray&, JSC::EnumerationMode mode = JSC::ExcludeDontEnumProperties);\
static JSC::JSValue getConstructor(JSC::ExecState*, JSC::JSGlobalObject*);\
\
static const JSC::TypedArrayType TypedArrayStorageType = JSC::TypedArray##name;\
uint32_t m_storageLength;\
type* m_storage;\
RefPtr<name##Array> m_impl;\
protected:\
JS##name##Array(JSC::Structure*, JSGlobalObject*, PassRefPtr<name##Array>);\
void finishCreation(JSC::JSGlobalData&);\
static const unsigned StructureFlags = JSC::OverridesGetPropertyNames | JSC::OverridesGetOwnPropertySlot | Base::StructureFlags;\
JSC::JSValue getByIndex(JSC::ExecState*, unsigned index);\
void indexSetter(JSC::ExecState*, unsigned index, JSC::JSValue);\
};\
\
const ClassInfo JS##name##Array::s_info = { #name "Array" , &Base::s_info, 0, 0, CREATE_METHOD_TABLE(JS##name##Array) };\
\
JS##name##Array::JS##name##Array(Structure* structure, JSGlobalObject* globalObject, PassRefPtr<name##Array> impl)\
: Base(globalObject->globalData(), structure)\
, m_impl(impl)\
{\
}\
\
void JS##name##Array::finishCreation(JSGlobalData& globalData)\
{\
Base::finishCreation(globalData);\
TypedArrayDescriptor descriptor(&JS##name##Array::s_info, OBJECT_OFFSETOF(JS##name##Array, m_storage), OBJECT_OFFSETOF(JS##name##Array, m_storageLength));\
globalData.registerTypedArrayDescriptor(m_impl.get(), descriptor);\
m_storage = m_impl->data();\
m_storageLength = m_impl->length();\
putDirect(globalData, globalData.propertyNames->length, jsNumber(m_storageLength), DontDelete | ReadOnly | DontEnum); \
ASSERT(inherits(&s_info));\
}\
\
bool JS##name##Array::getOwnPropertySlot(JSCell* cell, ExecState* exec, const Identifier& propertyName, PropertySlot& slot)\
{\
JS##name##Array* thisObject = jsCast<JS##name##Array*>(cell);\
ASSERT_GC_OBJECT_INHERITS(thisObject, &s_info);\
bool ok;\
unsigned index = propertyName.toUInt32(ok);\
if (ok && index < thisObject->m_storageLength) {\
slot.setValue(thisObject->getByIndex(exec, index));\
return true;\
}\
return Base::getOwnPropertySlot(cell, exec, propertyName, slot);\
}\
\
bool JS##name##Array::getOwnPropertyDescriptor(JSObject* object, ExecState* exec, const Identifier& propertyName, PropertyDescriptor& descriptor)\
{\
JS##name##Array* thisObject = jsCast<JS##name##Array*>(object);\
ASSERT_GC_OBJECT_INHERITS(thisObject, &s_info);\
bool ok;\
unsigned index = propertyName.toUInt32(ok);\
if (ok && index < thisObject->m_storageLength) {\
descriptor.setDescriptor(thisObject->getByIndex(exec, index), DontDelete);\
return true;\
}\
return Base::getOwnPropertyDescriptor(object, exec, propertyName, descriptor);\
}\
\
bool JS##name##Array::getOwnPropertySlotByIndex(JSCell* cell, ExecState* exec, unsigned propertyName, PropertySlot& slot)\
{\
JS##name##Array* thisObject = jsCast<JS##name##Array*>(cell);\
ASSERT_GC_OBJECT_INHERITS(thisObject, &s_info);\
if (propertyName < thisObject->m_storageLength) {\
slot.setValue(thisObject->getByIndex(exec, propertyName));\
return true;\
}\
return thisObject->methodTable()->getOwnPropertySlot(thisObject, exec, Identifier::from(exec, propertyName), slot);\
}\
\
void JS##name##Array::put(JSCell* cell, ExecState* exec, const Identifier& propertyName, JSValue value, PutPropertySlot& slot)\
{\
JS##name##Array* thisObject = jsCast<JS##name##Array*>(cell);\
ASSERT_GC_OBJECT_INHERITS(thisObject, &s_info);\
bool ok;\
unsigned index = propertyName.toUInt32(ok);\
if (ok) {\
thisObject->indexSetter(exec, index, value);\
return;\
}\
Base::put(thisObject, exec, propertyName, value, slot);\
}\
\
void JS##name##Array::indexSetter(JSC::ExecState* exec, unsigned index, JSC::JSValue value) \
{\
m_impl->set(index, value.toNumber(exec));\
}\
\
void JS##name##Array::putByIndex(JSCell* cell, ExecState* exec, unsigned propertyName, JSValue value)\
{\
JS##name##Array* thisObject = jsCast<JS##name##Array*>(cell);\
ASSERT_GC_OBJECT_INHERITS(thisObject, &s_info);\
thisObject->indexSetter(exec, propertyName, value);\
return;\
}\
\
void JS##name##Array::getOwnPropertyNames(JSObject* object, ExecState* exec, PropertyNameArray& propertyNames, EnumerationMode mode)\
{\
JS##name##Array* thisObject = jsCast<JS##name##Array*>(object);\
ASSERT_GC_OBJECT_INHERITS(thisObject, &s_info);\
for (unsigned i = 0; i < thisObject->m_storageLength; ++i)\
propertyNames.add(Identifier::from(exec, i));\
Base::getOwnPropertyNames(thisObject, exec, propertyNames, mode);\
}\
\
JSValue JS##name##Array::getByIndex(ExecState*, unsigned index)\
{\
ASSERT_GC_OBJECT_INHERITS(this, &s_info);\
type result = m_impl->item(index);\
if (isnan((double)result))\
return jsNaN();\
return JSValue(result);\
}\
static EncodedJSValue JSC_HOST_CALL constructJS##name##Array(ExecState* callFrame) { \
if (callFrame->argumentCount() < 1) \
return JSValue::encode(jsUndefined()); \
int32_t length = callFrame->argument(0).toInt32(callFrame); \
if (length < 0) \
return JSValue::encode(jsUndefined()); \
Structure* structure = JS##name##Array::createStructure(callFrame->globalData(), callFrame->lexicalGlobalObject(), callFrame->lexicalGlobalObject()->objectPrototype()); \
return JSValue::encode(JS##name##Array::create(structure, callFrame->lexicalGlobalObject(), name##Array::create(length)));\
}
#if ENABLE(COMMANDLINE_TYPEDARRAYS)
TYPED_ARRAY(Uint8, uint8_t);
TYPED_ARRAY(Uint16, uint16_t);
TYPED_ARRAY(Uint32, uint32_t);
TYPED_ARRAY(Int8, int8_t);
TYPED_ARRAY(Int16, int16_t);
TYPED_ARRAY(Int32, int32_t);
TYPED_ARRAY(Float32, float);
TYPED_ARRAY(Float64, double);
#endif
}
#endif
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