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LibJS: Convert NativeFunction::{call,construct}() to ThrowCompletionOr

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Both at the same time because many of them call construct() in call()
and I'm not keen on adding a bunch of temporary plumbing to turn
exceptions into throw completions.
Also changes the return value of construct() to Object* instead of Value
as it always needs to return an object; allowing an arbitrary Value is a
massive foot gun.
This commit is contained in:
Linus Groh 2021-10-20 21:16:30 +01:00
parent 0881f8160f
commit 5832de62fe
99 changed files with 597 additions and 669 deletions
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23
Userland/Libraries/LibJS/Runtime/Temporal/PlainDateConstructor.cpp
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@ -37,43 +37,40 @@ void PlainDateConstructor::initialize(GlobalObject& global_object)
}
// 3.1.1 Temporal.PlainDate ( isoYear, isoMonth, isoDay [ , calendarLike ] ), https://tc39.es/proposal-temporal/#sec-temporal.plaindate
Value PlainDateConstructor::call()
ThrowCompletionOr<Value> PlainDateConstructor::call()
{
auto& vm = this->vm();
// 1. If NewTarget is undefined, throw a TypeError exception.
vm.throw_exception<TypeError>(global_object(), ErrorType::ConstructorWithoutNew, "Temporal.PlainDate");
return {};
return vm.throw_completion<TypeError>(global_object(), ErrorType::ConstructorWithoutNew, "Temporal.PlainDate");
}
// 3.1.1 Temporal.PlainDate ( isoYear, isoMonth, isoDay [ , calendarLike ] ), https://tc39.es/proposal-temporal/#sec-temporal.plaindate
Value PlainDateConstructor::construct(FunctionObject& new_target)
ThrowCompletionOr<Object*> PlainDateConstructor::construct(FunctionObject& new_target)
{
auto& vm = this->vm();
auto& global_object = this->global_object();
// 2. Let y be ? ToIntegerThrowOnInfinity(isoYear).
auto y = TRY_OR_DISCARD(to_integer_throw_on_infinity(global_object, vm.argument(0), ErrorType::TemporalInvalidPlainDate));
auto y = TRY(to_integer_throw_on_infinity(global_object, vm.argument(0), ErrorType::TemporalInvalidPlainDate));
// 3. Let m be ? ToIntegerThrowOnInfinity(isoMonth).
auto m = TRY_OR_DISCARD(to_integer_throw_on_infinity(global_object, vm.argument(1), ErrorType::TemporalInvalidPlainDate));
auto m = TRY(to_integer_throw_on_infinity(global_object, vm.argument(1), ErrorType::TemporalInvalidPlainDate));
// 4. Let d be ? ToIntegerThrowOnInfinity(isoDay).
auto d = TRY_OR_DISCARD(to_integer_throw_on_infinity(global_object, vm.argument(2), ErrorType::TemporalInvalidPlainDate));
auto d = TRY(to_integer_throw_on_infinity(global_object, vm.argument(2), ErrorType::TemporalInvalidPlainDate));
// 5. Let calendar be ? ToTemporalCalendarWithISODefault(calendarLike).
auto* calendar = TRY_OR_DISCARD(to_temporal_calendar_with_iso_default(global_object, vm.argument(3)));
auto* calendar = TRY(to_temporal_calendar_with_iso_default(global_object, vm.argument(3)));
// IMPLEMENTATION DEFINED: This is an optimization that allows us to treat these doubles as normal integers from this point onwards.
// This does not change the exposed behavior as the call to CreateTemporalDate will immediately check that these values are valid
// ISO values (for years: -273975 - 273975, for months: 1 - 12, for days: 1 - 31) all of which are subsets of this check.
if (!AK::is_within_range<i32>(y) || !AK::is_within_range<u8>(m) || !AK::is_within_range<u8>(d)) {
vm.throw_exception<RangeError>(global_object, ErrorType::TemporalInvalidPlainDate);
return {};
}
if (!AK::is_within_range<i32>(y) || !AK::is_within_range<u8>(m) || !AK::is_within_range<u8>(d))
return vm.throw_completion<RangeError>(global_object, ErrorType::TemporalInvalidPlainDate);
// 6. Return ? CreateTemporalDate(y, m, d, calendar, NewTarget).
return TRY_OR_DISCARD(create_temporal_date(global_object, y, m, d, *calendar, &new_target));
return TRY(create_temporal_date(global_object, y, m, d, *calendar, &new_target));
}
// 3.2.2 Temporal.PlainDate.from ( item [ , options ] ), https://tc39.es/proposal-temporal/#sec-temporal.plaindate.from