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LibJS: Implement Intl.RelativeTimeFormat.prototype.formatToParts
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@ -6,6 +6,7 @@
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#include <AK/StringBuilder.h>
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#include <LibJS/Runtime/AbstractOperations.h>
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#include <LibJS/Runtime/Array.h>
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#include <LibJS/Runtime/GlobalObject.h>
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#include <LibJS/Runtime/Intl/NumberFormat.h>
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#include <LibJS/Runtime/Intl/NumberFormatConstructor.h>
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@ -313,4 +314,46 @@ ThrowCompletionOr<String> format_relative_time(GlobalObject& global_object, Rela
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return result.build();
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}
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// 17.1.6 FormatRelativeTimeToParts ( relativeTimeFormat, value, unit ), https://tc39.es/ecma402/#sec-FormatRelativeTimeToParts
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ThrowCompletionOr<Array*> format_relative_time_to_parts(GlobalObject& global_object, RelativeTimeFormat& relative_time_format, double value, StringView unit)
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{
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auto& vm = global_object.vm();
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// 1. Let parts be ? PartitionRelativeTimePattern(relativeTimeFormat, value, unit).
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auto parts = TRY(partition_relative_time_pattern(global_object, relative_time_format, value, unit));
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// 2. Let result be ArrayCreate(0).
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auto* result = MUST(Array::create(global_object, 0));
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// 3. Let n be 0.
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size_t n = 0;
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// 4. For each Record { [[Type]], [[Value]], [[Unit]] } part in parts, do
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for (auto& part : parts) {
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// a. Let O be OrdinaryObjectCreate(%Object.prototype%).
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auto* object = Object::create(global_object, global_object.object_prototype());
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// b. Perform ! CreateDataPropertyOrThrow(O, "type", part.[[Type]]).
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MUST(object->create_data_property_or_throw(vm.names.type, js_string(vm, part.type)));
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// c. Perform ! CreateDataPropertyOrThrow(O, "value", part.[[Value]]).
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MUST(object->create_data_property_or_throw(vm.names.value, js_string(vm, move(part.value))));
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// d. If part.[[Unit]] is not empty, then
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if (!part.unit.is_empty()) {
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// i. Perform ! CreateDataPropertyOrThrow(O, "unit", part.[[Unit]]).
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MUST(object->create_data_property_or_throw(vm.names.unit, js_string(vm, part.unit)));
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}
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// e. Perform ! CreateDataPropertyOrThrow(result, ! ToString(n), O).
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MUST(result->create_data_property_or_throw(n, object));
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// f. Increment n by 1.
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++n;
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}
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// 5. Return result.
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return result;
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}
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}
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@ -82,5 +82,6 @@ ThrowCompletionOr<Unicode::TimeUnit> singular_relative_time_unit(GlobalObject& g
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ThrowCompletionOr<Vector<PatternPartitionWithUnit>> partition_relative_time_pattern(GlobalObject& global_object, RelativeTimeFormat& relative_time_format, double value, StringView unit);
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Vector<PatternPartitionWithUnit> make_parts_list(StringView pattern, StringView unit, Vector<PatternPartition> parts);
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ThrowCompletionOr<String> format_relative_time(GlobalObject& global_object, RelativeTimeFormat& relative_time_format, double value, StringView unit);
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ThrowCompletionOr<Array*> format_relative_time_to_parts(GlobalObject& global_object, RelativeTimeFormat& relative_time_format, double value, StringView unit);
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}
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@ -4,6 +4,7 @@
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <LibJS/Runtime/Array.h>
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#include <LibJS/Runtime/GlobalObject.h>
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#include <LibJS/Runtime/Intl/RelativeTimeFormatPrototype.h>
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@ -26,6 +27,7 @@ void RelativeTimeFormatPrototype::initialize(GlobalObject& global_object)
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u8 attr = Attribute::Writable | Attribute::Configurable;
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define_native_function(vm.names.format, format, 2, attr);
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define_native_function(vm.names.formatToParts, format_to_parts, 2, attr);
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define_native_function(vm.names.resolvedOptions, resolved_options, 0, attr);
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}
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@ -47,6 +49,23 @@ JS_DEFINE_NATIVE_FUNCTION(RelativeTimeFormatPrototype::format)
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return js_string(vm, move(formatted));
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}
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// 17.4.4 Intl.RelativeTimeFormat.prototype.formatToParts ( value, unit ), https://tc39.es/ecma402/#sec-Intl.RelativeTimeFormat.prototype.formatToParts
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JS_DEFINE_NATIVE_FUNCTION(RelativeTimeFormatPrototype::format_to_parts)
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{
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// 1. Let relativeTimeFormat be the this value.
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// 2. Perform ? RequireInternalSlot(relativeTimeFormat, [[InitializedRelativeTimeFormat]]).
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auto* relative_time_format = TRY(typed_this_object(global_object));
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// 3. Let value be ? ToNumber(value).
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auto value = TRY(vm.argument(0).to_number(global_object));
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// 4. Let unit be ? ToString(unit).
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auto unit = TRY(vm.argument(1).to_string(global_object));
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// 5. Return ? FormatRelativeTimeToParts(relativeTimeFormat, value, unit).
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return TRY(format_relative_time_to_parts(global_object, *relative_time_format, value.as_double(), unit));
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}
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// 17.4.5 Intl.RelativeTimeFormat.prototype.resolvedOptions ( ), https://tc39.es/ecma402/#sec-intl.relativetimeformat.prototype.resolvedoptions
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JS_DEFINE_NATIVE_FUNCTION(RelativeTimeFormatPrototype::resolved_options)
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{
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@ -21,6 +21,7 @@ public:
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private:
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JS_DECLARE_NATIVE_FUNCTION(format);
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JS_DECLARE_NATIVE_FUNCTION(format_to_parts);
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JS_DECLARE_NATIVE_FUNCTION(resolved_options);
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};
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