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LibJS: Convert Intl::get_option() to ThrowCompletionOr
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6 changed files with 42 additions and 70 deletions
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@ -578,9 +578,7 @@ Array* supported_locales(GlobalObject& global_object, Vector<String> const& requ
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return {};
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// 2. Let matcher be ? GetOption(options, "localeMatcher", "string", « "lookup", "best fit" », "best fit").
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auto matcher = get_option(global_object, *options_object, vm.names.localeMatcher, Value::Type::String, { "lookup"sv, "best fit"sv }, "best fit"sv);
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if (vm.exception())
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return {};
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auto matcher = TRY_OR_DISCARD(get_option(global_object, *options_object, vm.names.localeMatcher, Value::Type::String, { "lookup"sv, "best fit"sv }, "best fit"sv));
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Vector<String> supported_locales;
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@ -613,15 +611,15 @@ Object* coerce_options_to_object(GlobalObject& global_object, Value options)
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}
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// 9.2.13 GetOption ( options, property, type, values, fallback ), https://tc39.es/ecma402/#sec-getoption
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Value get_option(GlobalObject& global_object, Object const& options, PropertyName const& property, Value::Type type, Vector<StringView> const& values, Fallback fallback)
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ThrowCompletionOr<Value> get_option(GlobalObject& global_object, Object const& options, PropertyName const& property, Value::Type type, Vector<StringView> const& values, Fallback fallback)
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{
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auto& vm = global_object.vm();
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// 1. Assert: Type(options) is Object.
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// 2. Let value be ? Get(options, property).
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auto value = options.get(property);
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if (vm.exception())
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return {};
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if (auto* exception = vm.exception())
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return throw_completion(exception->value());
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// 3. If value is undefined, return fallback.
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if (value.is_undefined()) {
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@ -643,18 +641,16 @@ Value get_option(GlobalObject& global_object, Object const& options, PropertyNam
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else {
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// a. Let value be ? ToString(value).
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value = value.to_primitive_string(global_object);
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if (vm.exception())
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return {};
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if (auto* exception = vm.exception())
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return throw_completion(exception->value());
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}
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// 7. 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 (!values.contains_slow(value.as_string().string())) {
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vm.throw_exception<RangeError>(global_object, ErrorType::OptionIsNotValidValue, value.to_string_without_side_effects(), property.as_string());
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return {};
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}
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if (!values.contains_slow(value.as_string().string()))
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return vm.throw_completion<RangeError>(global_object, ErrorType::OptionIsNotValidValue, value.to_string_without_side_effects(), property.as_string());
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}
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// 8. Return value.
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