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Code Issues Projects Releases Packages Wiki Activity Actions 9

LibJS: Port iterator_next() to NonnullGCPtr

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This commit is contained in:
Linus Groh 2023-04-15 16:13:45 +02:00
parent b110258848
commit e54536421a
Notes: sideshowbarker 2024-07-17 08:38:37 +09:00
4 changed files with 12 additions and 12 deletions
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6
Userland/Libraries/LibJS/Bytecode/Op.cpp
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@ -277,16 +277,16 @@ ThrowCompletionOr<void> IteratorToArray::execute_impl(Bytecode::Interpreter& int
size_t index = 0;
while (true) {
auto* iterator_result = TRY(iterator_next(vm, iterator));
auto iterator_result = TRY(iterator_next(vm, iterator));
auto complete = TRY(iterator_complete(vm, *iterator_result));
auto complete = TRY(iterator_complete(vm, iterator_result));
if (complete) {
interpreter.accumulator() = array;
return {};
}
auto value = TRY(iterator_value(vm, *iterator_result));
auto value = TRY(iterator_value(vm, iterator_result));
MUST(array->create_data_property_or_throw(index, value));
index++;

4
Userland/Libraries/LibJS/Runtime/AsyncFromSyncIteratorPrototype.cpp
View file

@ -87,12 +87,12 @@ JS_DEFINE_NATIVE_FUNCTION(AsyncFromSyncIteratorPrototype::next)
// 6. Else,
// a. Let result be Completion(IteratorNext(syncIteratorRecord)).
// 7. IfAbruptRejectPromise(result, promiseCapability).
auto* result = TRY_OR_REJECT(vm, promise_capability,
auto result = TRY_OR_REJECT(vm, promise_capability,
(vm.argument_count() > 0 ? iterator_next(vm, sync_iterator_record, vm.argument(0))
: iterator_next(vm, sync_iterator_record)));
// 8. Return AsyncFromSyncIteratorContinuation(result, promiseCapability).
return async_from_sync_iterator_continuation(vm, *result, promise_capability);
return async_from_sync_iterator_continuation(vm, result, promise_capability);
}
// 27.1.4.2.2 %AsyncFromSyncIteratorPrototype%.return ( [ value ] ), https://tc39.es/ecma262/#sec-%asyncfromsynciteratorprototype%.return

10
Userland/Libraries/LibJS/Runtime/IteratorOperations.cpp
View file

@ -68,7 +68,7 @@ ThrowCompletionOr<Iterator> get_iterator(VM& vm, Value value, IteratorHint hint,
}
// 7.4.3 IteratorNext ( iteratorRecord [ , value ] ), https://tc39.es/ecma262/#sec-iteratornext
ThrowCompletionOr<Object*> iterator_next(VM& vm, Iterator const& iterator_record, Optional<Value> value)
ThrowCompletionOr<NonnullGCPtr<Object>> iterator_next(VM& vm, Iterator const& iterator_record, Optional<Value> value)
{
Value result;
@ -86,7 +86,7 @@ ThrowCompletionOr<Object*> iterator_next(VM& vm, Iterator const& iterator_record
return vm.throw_completion<TypeError>(ErrorType::IterableNextBadReturn);
// 4. Return result.
return &result.as_object();
return result.as_object();
}
// 7.4.4 IteratorComplete ( iterResult ), https://tc39.es/ecma262/#sec-iteratorcomplete
@ -107,17 +107,17 @@ ThrowCompletionOr<Value> iterator_value(VM& vm, Object& iterator_result)
ThrowCompletionOr<Object*> iterator_step(VM& vm, Iterator const& iterator_record)
{
// 1. Let result be ? IteratorNext(iteratorRecord).
auto* result = TRY(iterator_next(vm, iterator_record));
auto result = TRY(iterator_next(vm, iterator_record));
// 2. Let done be ? IteratorComplete(result).
auto done = TRY(iterator_complete(vm, *result));
auto done = TRY(iterator_complete(vm, result));
// 3. If done is true, return false.
if (done)
return nullptr;
// 4. Return result.
return result;
return result.ptr();
}
// 7.4.7 IteratorClose ( iteratorRecord, completion ), https://tc39.es/ecma262/#sec-iteratorclose

4
Userland/Libraries/LibJS/Runtime/IteratorOperations.h
View file

@ -1,6 +1,6 @@
/*
* Copyright (c) 2020, Matthew Olsson <mattco@serenityos.org>
* Copyright (c) 2022, Linus Groh <linusg@serenityos.org>
* Copyright (c) 2022-2023, Linus Groh <linusg@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
@ -23,7 +23,7 @@ enum class IteratorHint {
};
ThrowCompletionOr<Iterator> get_iterator(VM&, Value, IteratorHint = IteratorHint::Sync, Optional<Value> method = {});
ThrowCompletionOr<Object*> iterator_next(VM&, Iterator const&, Optional<Value> = {});
ThrowCompletionOr<NonnullGCPtr<Object>> iterator_next(VM&, Iterator const&, Optional<Value> = {});
ThrowCompletionOr<Object*> iterator_step(VM&, Iterator const&);
ThrowCompletionOr<bool> iterator_complete(VM&, Object& iterator_result);
ThrowCompletionOr<Value> iterator_value(VM&, Object& iterator_result);