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LibJS: Disallow Temporal.Duration input values to be non-integers

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This is a normative change in the Temporal spec.

See: 8c85450
This commit is contained in:
Linus Groh 2021-11-17 22:20:59 +00:00
parent 92708746c8
commit ec1e1f4f12
6 changed files with 60 additions and 48 deletions
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23
Userland/Libraries/LibJS/Runtime/Temporal/AbstractOperations.h
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@ -142,7 +142,7 @@ ThrowCompletionOr<double> to_positive_integer(GlobalObject&, Value argument);
ThrowCompletionOr<Object*> prepare_temporal_fields(GlobalObject&, Object const& fields, Vector<String> const& field_names, Vector<StringView> const& required_fields);
ThrowCompletionOr<Object*> prepare_partial_temporal_fields(GlobalObject&, Object const& fields, Vector<String> const& field_names);
// 13.46 ToIntegerThrowOnInfinity ( argument ), https://tc39.es/proposal-temporal/#sec-temporal-tointegerthrowoninfinity
// 13.47 ToIntegerThrowOnInfinity ( argument ), https://tc39.es/proposal-temporal/#sec-temporal-tointegerthrowoninfinity
template<typename... Args>
ThrowCompletionOr<double> to_integer_throw_on_infinity(GlobalObject& global_object, Value argument, ErrorType error_type, Args... args)
{
@ -161,4 +161,25 @@ ThrowCompletionOr<double> to_integer_throw_on_infinity(GlobalObject& global_obje
return integer;
}
// 13.48 ToIntegerWithoutRounding ( argument ), https://tc39.es/proposal-temporal/#sec-temporal-tointegerwithoutrounding
template<typename... Args>
ThrowCompletionOr<double> to_integer_without_rounding(GlobalObject& global_object, Value argument, ErrorType error_type, Args... args)
{
auto& vm = global_object.vm();
// 1. Let number be ? ToNumber(argument).
auto number = TRY(argument.to_number(global_object));
// 2. If number is NaN, +0𝔽, or −0𝔽 return 0.
if (number.is_nan() || number.is_positive_zero() || number.is_negative_zero())
return 0;
// 3. If ! IsIntegralNumber(number) is false, throw a RangeError exception.
if (!number.is_integral_number())
return vm.template throw_completion<RangeError>(global_object, error_type, args...);
// 4. Return ℝ(number).
return number.as_double();
}
}