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f7517c5b8d
Our Temporal implementation is woefully out of date. The spec has been so vastly rewritten that it is unfortunately not practical to update our implementation in-place. Even just removing Temporal objects that were removed from the spec, or updating any of the simpler remaining objects, has proven to be a mess in previous attempts. So, this removes our Temporal implementation. AOs used by other specs are left intact.
93 lines
3.5 KiB
C++
93 lines
3.5 KiB
C++
/*
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* Copyright (c) 2021-2022, Idan Horowitz <idan.horowitz@serenityos.org>
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* Copyright (c) 2021-2023, Linus Groh <linusg@serenityos.org>
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* Copyright (c) 2021, Luke Wilde <lukew@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <LibJS/Runtime/PropertyKey.h>
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#include <LibJS/Runtime/Temporal/AbstractOperations.h>
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namespace JS::Temporal {
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// 13.2 GetOptionsObject ( options ), https://tc39.es/proposal-temporal/#sec-getoptionsobject
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ThrowCompletionOr<Object*> get_options_object(VM& vm, Value options)
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{
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auto& realm = *vm.current_realm();
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// 1. If options is undefined, then
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if (options.is_undefined()) {
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// a. Return OrdinaryObjectCreate(null).
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return Object::create(realm, nullptr).ptr();
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}
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// 2. If Type(options) is Object, then
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if (options.is_object()) {
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// a. Return options.
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return &options.as_object();
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}
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// 3. Throw a TypeError exception.
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return vm.throw_completion<TypeError>(ErrorType::NotAnObject, "Options");
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}
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// 13.3 GetOption ( options, property, type, values, fallback ), https://tc39.es/proposal-temporal/#sec-getoption
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ThrowCompletionOr<Value> get_option(VM& vm, Object const& options, PropertyKey const& property, OptionType type, ReadonlySpan<StringView> values, OptionDefault const& default_)
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{
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VERIFY(property.is_string());
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// 1. Let value be ? Get(options, property).
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auto value = TRY(options.get(property));
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// 2. If value is undefined, then
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if (value.is_undefined()) {
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// a. If default is required, throw a RangeError exception.
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if (default_.has<GetOptionRequired>())
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return vm.throw_completion<RangeError>(ErrorType::OptionIsNotValidValue, "undefined"sv, property.as_string());
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// b. Return default.
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return default_.visit(
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[](GetOptionRequired) -> ThrowCompletionOr<Value> { VERIFY_NOT_REACHED(); },
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[](Empty) -> ThrowCompletionOr<Value> { return js_undefined(); },
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[](bool b) -> ThrowCompletionOr<Value> { return Value(b); },
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[](double d) -> ThrowCompletionOr<Value> { return Value(d); },
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[&vm](StringView s) -> ThrowCompletionOr<Value> { return PrimitiveString::create(vm, s); });
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}
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// 5. If type is "boolean", then
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if (type == OptionType::Boolean) {
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// a. Set value to ToBoolean(value).
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value = Value(value.to_boolean());
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}
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// 6. Else if type is "number", then
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else if (type == OptionType::Number) {
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// a. Set value to ? ToNumber(value).
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value = TRY(value.to_number(vm));
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// b. If value is NaN, throw a RangeError exception.
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if (value.is_nan())
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return vm.throw_completion<RangeError>(ErrorType::OptionIsNotValidValue, vm.names.NaN.as_string(), property.as_string());
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}
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// 7. Else,
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else {
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// a. Assert: type is "string".
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VERIFY(type == OptionType::String);
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// b. Set value to ? ToString(value).
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value = TRY(value.to_primitive_string(vm));
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}
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// 8. If values is not undefined and values does not contain an element equal to value, throw a RangeError exception.
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if (!values.is_empty()) {
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// NOTE: Every location in the spec that invokes GetOption with type=boolean also has values=undefined.
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VERIFY(value.is_string());
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if (auto value_string = value.as_string().utf8_string(); !values.contains_slow(value_string))
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return vm.throw_completion<RangeError>(ErrorType::OptionIsNotValidValue, value_string, property.as_string());
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}
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// 9. Return value.
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return value;
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}
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}
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