mirror of
https://gitee.com/openharmony/arkcompiler_ets_runtime
synced 2024-11-27 04:00:37 +00:00
73 lines
3.4 KiB
C++
73 lines
3.4 KiB
C++
/*
|
|
* Copyright (c) 2021 Huawei Device Co., Ltd.
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*/
|
|
|
|
#include "ecmascript/js_primitive_ref.h"
|
|
|
|
#include "ecmascript/global_env.h"
|
|
|
|
namespace panda::ecmascript {
|
|
// ES6 9.4.3.4 StringCreate( value, prototype)
|
|
JSHandle<JSPrimitiveRef> JSPrimitiveRef::StringCreate(JSThread *thread, const JSHandle<JSTaggedValue> &value,
|
|
const JSHandle<JSTaggedValue> &newTarget)
|
|
{
|
|
ASSERT(value->IsString());
|
|
// 1. Let S be MakeBasicObject(<<[[Prototype]], [[Extensible]], [[StringData]]>>).
|
|
// 2. Set S.[[Prototype]] to prototype.
|
|
// 3. Set S.[[StringData]] to value.
|
|
// 4. Set S.[[GetOwnProperty]] as specified.
|
|
// 5. Set S.[[DefineOwnProperty]] as specified.
|
|
// 6. Set S.[[OwnPropertyKeys]] as specified.
|
|
ObjectFactory *factory = thread->GetEcmaVM()->GetFactory();
|
|
JSHandle<JSTaggedValue> str(factory->NewJSString(value, newTarget));
|
|
RETURN_HANDLE_IF_ABRUPT_COMPLETION(JSPrimitiveRef, thread);
|
|
// 7. Let length be the number of code unit elements in value.
|
|
JSHandle<JSTaggedValue> lengthStr = thread->GlobalConstants()->GetHandledLengthString();
|
|
uint32_t length = EcmaStringAccessor(value->GetTaggedObject()).GetLength();
|
|
// 8. Perform ! DefinePropertyOrThrow(S, "length", PropertyDescriptor { [[Value]]: F(length),
|
|
// [[Writable]]: false, [[Enumerable]]: false, [[Configurable]]: false }).
|
|
PropertyDescriptor desc(thread, JSHandle<JSTaggedValue>(thread, JSTaggedValue(length)), false, false, false);
|
|
[[maybe_unused]] bool status = JSTaggedValue::DefinePropertyOrThrow(thread, str, lengthStr, desc);
|
|
RETURN_HANDLE_IF_ABRUPT_COMPLETION(JSPrimitiveRef, thread);
|
|
ASSERT(status);
|
|
// 9. Return S.
|
|
return JSHandle<JSPrimitiveRef>(str);
|
|
}
|
|
|
|
bool JSPrimitiveRef::StringGetIndexProperty(const JSThread *thread, const JSHandle<JSObject> &obj, uint32_t index,
|
|
PropertyDescriptor *desc)
|
|
{
|
|
uint16_t tmpChar = 0;
|
|
{
|
|
JSHandle<EcmaString> strHandle(thread, EcmaString::Cast(JSPrimitiveRef::Cast(*obj)->GetValue()));
|
|
JSHandle<EcmaString> strFlat(thread, EcmaStringAccessor::Flatten(thread->GetEcmaVM(), strHandle));
|
|
if (EcmaStringAccessor(strFlat).GetLength() <= index) {
|
|
return false;
|
|
}
|
|
// 10. Let resultStr be a String value of length 1, containing one code unit from str, specifically the code
|
|
// unit at index index
|
|
tmpChar = EcmaStringAccessor(strFlat).Get(index);
|
|
}
|
|
JSHandle<JSTaggedValue> value(thread->GetEcmaVM()->GetFactory()->NewFromUtf16(&tmpChar, 1));
|
|
// 11. Return a PropertyDescriptor{ [[Value]]: resultStr, [[Enumerable]]: true, [[Writable]]: false,
|
|
// [[Configurable]]: false }.
|
|
desc->SetValue(value);
|
|
desc->SetEnumerable(true);
|
|
desc->SetWritable(false);
|
|
desc->SetConfigurable(false);
|
|
return true;
|
|
}
|
|
// ES6 9.4.3.3 [[OwnPropertyKeys]] ( )
|
|
} // namespace panda::ecmascript
|