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LibJS: Add a TRY_OR_CLOSE_ITERATOR macro for IfAbruptCloseIterator

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Behaves just like TRY_OR_REJECT for promises.
This commit is contained in:
Timothy Flynn 2025-04-28 18:22:32 -04:00 • committed by Tim Flynn
commit 908349f8fe
Notes: github-actions[bot] 2025-04-29 11:34:16 +00:00
3 changed files with 25 additions and 20 deletions
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11
Libraries/LibJS/Runtime/ArrayConstructor.cpp
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@ -214,12 +214,8 @@ JS_DEFINE_NATIVE_FUNCTION(ArrayConstructor::from)
// v. If mapping is true, then
if (mapfn) {
// 1. Let mappedValue be Completion(Call(mapfn, thisArg, « nextValue, 𝔽(k) »)).
auto mapped_value_or_error = JS::call(vm, *mapfn, this_arg, next.release_value(), Value(k));
// 2. IfAbruptCloseIterator(mappedValue, iteratorRecord).
if (mapped_value_or_error.is_error())
return TRY(iterator_close(vm, iterator, mapped_value_or_error.release_error()));
mapped_value = mapped_value_or_error.release_value();
mapped_value = TRY_OR_CLOSE_ITERATOR(vm, iterator, JS::call(vm, *mapfn, this_arg, next.release_value(), Value(k)));
}
// vi. Else, let mappedValue be nextValue.
else {
@ -227,11 +223,8 @@ JS_DEFINE_NATIVE_FUNCTION(ArrayConstructor::from)
}
// vii. Let defineStatus be Completion(CreateDataPropertyOrThrow(A, Pk, mappedValue)).
auto result_or_error = array->create_data_property_or_throw(property_key, mapped_value);
// viii. IfAbruptCloseIterator(defineStatus, iteratorRecord).
if (result_or_error.is_error())
return TRY(iterator_close(vm, iterator, result_or_error.release_error()));
TRY_OR_CLOSE_ITERATOR(vm, iterator, array->create_data_property_or_throw(property_key, mapped_value));
// ix. Set k to k + 1.
}