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LibJS: Implement Temporal.PlainTime.prototype.toJSON()

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This commit is contained in:
Linus Groh 2021-09-08 23:04:43 +01:00
parent 6987e326d8
commit 9661d15fe2
3 changed files with 35 additions and 0 deletions
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16
Userland/Libraries/LibJS/Runtime/Temporal/PlainTimePrototype.cpp
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@ -44,6 +44,7 @@ void PlainTimePrototype::initialize(GlobalObject& global_object)
define_native_function(vm.names.getISOFields, get_iso_fields, 0, attr);
define_native_function(vm.names.toString, to_string, 0, attr);
define_native_function(vm.names.toLocaleString, to_locale_string, 0, attr);
define_native_function(vm.names.toJSON, to_json, 0, attr);
define_native_function(vm.names.valueOf, value_of, 0, attr);
}
@ -405,6 +406,21 @@ JS_DEFINE_NATIVE_FUNCTION(PlainTimePrototype::to_locale_string)
return js_string(vm, move(string));
}
// 4.3.22 Temporal.PlainTime.prototype.toJSON ( ), https://tc39.es/proposal-temporal/#sec-temporal.plaintime.prototype.tojson
JS_DEFINE_NATIVE_FUNCTION(PlainTimePrototype::to_json)
{
// 1. Let temporalTime be the this value.
// 2. Perform ? RequireInternalSlot(temporalTime, [[InitializedTemporalTime]]).
auto* temporal_time = typed_this(global_object);
if (vm.exception())
return {};
// FIXME: Hey spec, this cannot fail...
// 3. Return ? TemporalTimeToString(temporalTime.[[ISOHour]], temporalTime.[[ISOMinute]], temporalTime.[[ISOSecond]], temporalTime.[[ISOMillisecond]], temporalTime.[[ISOMicrosecond]], temporalTime.[[ISONanosecond]], "auto").
auto string = temporal_time_to_string(temporal_time->iso_hour(), temporal_time->iso_minute(), temporal_time->iso_second(), temporal_time->iso_millisecond(), temporal_time->iso_microsecond(), temporal_time->iso_nanosecond(), "auto"sv);
return js_string(vm, move(string));
}
// 4.3.23 Temporal.PlainTime.prototype.valueOf ( ), https://tc39.es/proposal-temporal/#sec-temporal.plaintime.prototype.valueof
JS_DEFINE_NATIVE_FUNCTION(PlainTimePrototype::value_of)
{

1
Userland/Libraries/LibJS/Runtime/Temporal/PlainTimePrototype.h
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@ -32,6 +32,7 @@ private:
JS_DECLARE_NATIVE_FUNCTION(get_iso_fields);
JS_DECLARE_NATIVE_FUNCTION(to_string);
JS_DECLARE_NATIVE_FUNCTION(to_locale_string);
JS_DECLARE_NATIVE_FUNCTION(to_json);
JS_DECLARE_NATIVE_FUNCTION(value_of);
};

18
Userland/Libraries/LibJS/Tests/builtins/Temporal/PlainTime/PlainTime.prototype.toJSON.js Normal file
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@ -0,0 +1,18 @@
describe("correct behavior", () => {
test("length is 0", () => {
expect(Temporal.PlainTime.prototype.toJSON).toHaveLength(0);
});
test("basic functionality", () => {
const plainTime = new Temporal.PlainTime(18, 14, 47, 123, 456, 789);
expect(plainTime.toJSON()).toBe("18:14:47.123456789");
});
});
describe("errors", () => {
test("this value must be a Temporal.PlainTime object", () => {
expect(() => {
Temporal.PlainTime.prototype.toJSON.call("foo");
}).toThrowWithMessage(TypeError, "Not a Temporal.PlainTime");
});
});