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Everywhere: Hoist the Libraries folder to the top-level
This commit is contained in:
parent
950e819ee7
commit
93712b24bf
Notes:
github-actions[bot]
2024-11-10 11:51:52 +00:00
Author: https://github.com/trflynn89
Commit: 93712b24bf
Pull-request: https://github.com/LadybirdBrowser/ladybird/pull/2256
Reviewed-by: https://github.com/sideshowbarker
4547 changed files with 104 additions and 113 deletions
533
Libraries/LibJS/Runtime/PromiseConstructor.cpp
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533
Libraries/LibJS/Runtime/PromiseConstructor.cpp
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/*
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* Copyright (c) 2021-2024, Linus Groh <linusg@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 <AK/Function.h>
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#include <LibJS/Runtime/AbstractOperations.h>
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#include <LibJS/Runtime/AggregateError.h>
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#include <LibJS/Runtime/Array.h>
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#include <LibJS/Runtime/Error.h>
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#include <LibJS/Runtime/FunctionObject.h>
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#include <LibJS/Runtime/GlobalObject.h>
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#include <LibJS/Runtime/Iterator.h>
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#include <LibJS/Runtime/Promise.h>
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#include <LibJS/Runtime/PromiseCapability.h>
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#include <LibJS/Runtime/PromiseConstructor.h>
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#include <LibJS/Runtime/PromiseResolvingElementFunctions.h>
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namespace JS {
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JS_DEFINE_ALLOCATOR(PromiseConstructor);
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// 27.2.4.1.1 GetPromiseResolve ( promiseConstructor ), https://tc39.es/ecma262/#sec-getpromiseresolve
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static ThrowCompletionOr<Value> get_promise_resolve(VM& vm, Value constructor)
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{
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VERIFY(constructor.is_constructor());
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// 1. Let promiseResolve be ? Get(promiseConstructor, "resolve").
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auto promise_resolve = TRY(constructor.get(vm, vm.names.resolve));
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// 2. If IsCallable(promiseResolve) is false, throw a TypeError exception.
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if (!promise_resolve.is_function())
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return vm.throw_completion<TypeError>(ErrorType::NotAFunction, promise_resolve.to_string_without_side_effects());
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// 3. Return promiseResolve.
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return promise_resolve;
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}
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using EndOfElementsCallback = Function<ThrowCompletionOr<Value>(PromiseValueList&)>;
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using InvokeElementFunctionCallback = Function<ThrowCompletionOr<Value>(PromiseValueList&, RemainingElements&, Value, size_t)>;
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static ThrowCompletionOr<Value> perform_promise_common(VM& vm, IteratorRecord& iterator_record, Value constructor, PromiseCapability const& result_capability, Value promise_resolve, EndOfElementsCallback end_of_list, InvokeElementFunctionCallback invoke_element_function)
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{
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VERIFY(constructor.is_constructor());
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VERIFY(promise_resolve.is_function());
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// 1. Let values be a new empty List.
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auto values = vm.heap().allocate_without_realm<PromiseValueList>();
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// 2. Let remainingElementsCount be the Record { [[Value]]: 1 }.
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auto remaining_elements_count = vm.heap().allocate_without_realm<RemainingElements>(1);
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// 3. Let index be 0.
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size_t index = 0;
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// 4. Repeat,
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while (true) {
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// a. Let next be ? IteratorStepValue(iteratorRecord).
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auto next = TRY(iterator_step_value(vm, iterator_record));
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// b. If next is DONE, then
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if (!next.has_value()) {
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// i. Set remainingElementsCount.[[Value]] to remainingElementsCount.[[Value]] - 1.
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// ii. If remainingElementsCount.[[Value]] = 0, then
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if (--remaining_elements_count->value == 0) {
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// 1-2. are handled in `end_of_list`
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return TRY(end_of_list(*values));
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}
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// iii. Return resultCapability.[[Promise]].
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return result_capability.promise();
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}
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// c. Append undefined to values.
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values->values().append(js_undefined());
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// d. Let nextPromise be ? Call(promiseResolve, constructor, « next »).
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auto next_promise = TRY(call(vm, promise_resolve.as_function(), constructor, next.release_value()));
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// e-l. are handled in `invoke_element_function`
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// m. Set remainingElementsCount.[[Value]] to remainingElementsCount.[[Value]] + 1.
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++remaining_elements_count->value;
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// n. Perform ? Invoke(nextPromise, "then", « ... »).
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TRY(invoke_element_function(*values, *remaining_elements_count, next_promise, index));
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// o. Set index to index + 1.
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++index;
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}
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}
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// 27.2.4.1.2 PerformPromiseAll ( iteratorRecord, constructor, resultCapability, promiseResolve ), https://tc39.es/ecma262/#sec-performpromiseall
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static ThrowCompletionOr<Value> perform_promise_all(VM& vm, IteratorRecord& iterator_record, Value constructor, PromiseCapability const& result_capability, Value promise_resolve)
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{
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auto& realm = *vm.current_realm();
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return perform_promise_common(
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vm, iterator_record, constructor, result_capability, promise_resolve,
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[&](PromiseValueList& values) -> ThrowCompletionOr<Value> {
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// 1. Let valuesArray be CreateArrayFromList(values).
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auto values_array = Array::create_from(realm, values.values());
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// 2. Perform ? Call(resultCapability.[[Resolve]], undefined, « valuesArray »).
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TRY(call(vm, *result_capability.resolve(), js_undefined(), values_array));
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// iv. Return resultCapability.[[Promise]].
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return result_capability.promise();
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},
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[&](PromiseValueList& values, RemainingElements& remaining_elements_count, Value next_promise, size_t index) {
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// j. Let steps be the algorithm steps defined in Promise.all Resolve Element Functions.
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// k. Let length be the number of non-optional parameters of the function definition in Promise.all Resolve Element Functions.
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// l. Let onFulfilled be CreateBuiltinFunction(steps, length, "", « [[AlreadyCalled]], [[Index]], [[Values]], [[Capability]], [[RemainingElements]] »).
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// m. Set onFulfilled.[[AlreadyCalled]] to false.
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// n. Set onFulfilled.[[Index]] to index.
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// o. Set onFulfilled.[[Values]] to values.
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// p. Set onFulfilled.[[Capability]] to resultCapability.
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// q. Set onFulfilled.[[RemainingElements]] to remainingElementsCount.
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auto on_fulfilled = PromiseAllResolveElementFunction::create(realm, index, values, result_capability, remaining_elements_count);
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on_fulfilled->define_direct_property(vm.names.name, PrimitiveString::create(vm, String {}), Attribute::Configurable);
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// s. Perform ? Invoke(nextPromise, "then", « onFulfilled, resultCapability.[[Reject]] »).
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return next_promise.invoke(vm, vm.names.then, on_fulfilled, result_capability.reject());
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});
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}
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// 27.2.4.2.1 PerformPromiseAllSettled ( iteratorRecord, constructor, resultCapability, promiseResolve ), https://tc39.es/ecma262/#sec-performpromiseallsettled
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static ThrowCompletionOr<Value> perform_promise_all_settled(VM& vm, IteratorRecord& iterator_record, Value constructor, PromiseCapability const& result_capability, Value promise_resolve)
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{
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auto& realm = *vm.current_realm();
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return perform_promise_common(
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vm, iterator_record, constructor, result_capability, promise_resolve,
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[&](PromiseValueList& values) -> ThrowCompletionOr<Value> {
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auto values_array = Array::create_from(realm, values.values());
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TRY(call(vm, *result_capability.resolve(), js_undefined(), values_array));
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return result_capability.promise();
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},
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[&](PromiseValueList& values, RemainingElements& remaining_elements_count, Value next_promise, size_t index) {
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// j. Let stepsFulfilled be the algorithm steps defined in Promise.allSettled Resolve Element Functions.
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// k. Let lengthFulfilled be the number of non-optional parameters of the function definition in Promise.allSettled Resolve Element Functions.
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// l. Let onFulfilled be CreateBuiltinFunction(stepsFulfilled, lengthFulfilled, "", « [[AlreadyCalled]], [[Index]], [[Values]], [[Capability]], [[RemainingElements]] »).
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// m. Let alreadyCalled be the Record { [[Value]]: false }.
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// n. Set onFulfilled.[[AlreadyCalled]] to alreadyCalled.
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// o. Set onFulfilled.[[Index]] to index.
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// p. Set onFulfilled.[[Values]] to values.
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// q. Set onFulfilled.[[Capability]] to resultCapability.
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// r. Set onFulfilled.[[RemainingElements]] to remainingElementsCount.
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auto on_fulfilled = PromiseAllSettledResolveElementFunction::create(realm, index, values, result_capability, remaining_elements_count);
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on_fulfilled->define_direct_property(vm.names.name, PrimitiveString::create(vm, String {}), Attribute::Configurable);
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// s. Let stepsRejected be the algorithm steps defined in Promise.allSettled Reject Element Functions.
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// t. Let lengthRejected be the number of non-optional parameters of the function definition in Promise.allSettled Reject Element Functions.
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// u. Let onRejected be CreateBuiltinFunction(stepsRejected, lengthRejected, "", « [[AlreadyCalled]], [[Index]], [[Values]], [[Capability]], [[RemainingElements]] »).
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// v. Set onRejected.[[AlreadyCalled]] to alreadyCalled.
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// w. Set onRejected.[[Index]] to index.
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// x. Set onRejected.[[Values]] to values.
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// y. Set onRejected.[[Capability]] to resultCapability.
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// z. Set onRejected.[[RemainingElements]] to remainingElementsCount.
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auto on_rejected = PromiseAllSettledRejectElementFunction::create(realm, index, values, result_capability, remaining_elements_count);
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on_rejected->define_direct_property(vm.names.name, PrimitiveString::create(vm, String {}), Attribute::Configurable);
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// ab. Perform ? Invoke(nextPromise, "then", « onFulfilled, onRejected »).
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return next_promise.invoke(vm, vm.names.then, on_fulfilled, on_rejected);
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});
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}
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// 27.2.4.3.1 PerformPromiseAny ( iteratorRecord, constructor, resultCapability, promiseResolve ), https://tc39.es/ecma262/#sec-performpromiseany
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static ThrowCompletionOr<Value> perform_promise_any(VM& vm, IteratorRecord& iterator_record, Value constructor, PromiseCapability& result_capability, Value promise_resolve)
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{
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auto& realm = *vm.current_realm();
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return perform_promise_common(
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vm, iterator_record, constructor, result_capability, promise_resolve,
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[&](PromiseValueList& errors) -> ThrowCompletionOr<Value> {
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// 1. Let error be a newly created AggregateError object.
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auto error = AggregateError::create(realm);
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// 2. Perform ! DefinePropertyOrThrow(error, "errors", PropertyDescriptor { [[Configurable]]: true, [[Enumerable]]: false, [[Writable]]: true, [[Value]]: CreateArrayFromList(errors) }).
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auto errors_array = Array::create_from(realm, errors.values());
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MUST(error->define_property_or_throw(vm.names.errors, { .value = errors_array, .writable = true, .enumerable = false, .configurable = true }));
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// 3. Return ThrowCompletion(error).
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return throw_completion(error);
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},
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[&](PromiseValueList& errors, RemainingElements& remaining_elements_count, Value next_promise, size_t index) {
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// j. Let stepsRejected be the algorithm steps defined in Promise.any Reject Element Functions.
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// k. Let lengthRejected be the number of non-optional parameters of the function definition in Promise.any Reject Element Functions.
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// l. Let onRejected be CreateBuiltinFunction(stepsRejected, lengthRejected, "", « [[AlreadyCalled]], [[Index]], [[Errors]], [[Capability]], [[RemainingElements]] »).
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// m. Set onRejected.[[AlreadyCalled]] to false.
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// n. Set onRejected.[[Index]] to index.
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// o. Set onRejected.[[Errors]] to errors.
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// p. Set onRejected.[[Capability]] to resultCapability.
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// q. Set onRejected.[[RemainingElements]] to remainingElementsCount.
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auto on_rejected = PromiseAnyRejectElementFunction::create(realm, index, errors, result_capability, remaining_elements_count);
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on_rejected->define_direct_property(vm.names.name, PrimitiveString::create(vm, String {}), Attribute::Configurable);
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// s. Perform ? Invoke(nextPromise, "then", « resultCapability.[[Resolve]], onRejected »).
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return next_promise.invoke(vm, vm.names.then, result_capability.resolve(), on_rejected);
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});
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}
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// 27.2.4.5.1 PerformPromiseRace ( iteratorRecord, constructor, resultCapability, promiseResolve ), https://tc39.es/ecma262/#sec-performpromiserace
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static ThrowCompletionOr<Value> perform_promise_race(VM& vm, IteratorRecord& iterator_record, Value constructor, PromiseCapability const& result_capability, Value promise_resolve)
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{
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return perform_promise_common(
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vm, iterator_record, constructor, result_capability, promise_resolve,
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[&](PromiseValueList&) -> ThrowCompletionOr<Value> {
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// ii. Return resultCapability.[[Promise]].
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return result_capability.promise();
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},
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[&](PromiseValueList&, RemainingElements&, Value next_promise, size_t) {
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// i. Perform ? Invoke(nextPromise, "then", « resultCapability.[[Resolve]], resultCapability.[[Reject]] »).
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return next_promise.invoke(vm, vm.names.then, result_capability.resolve(), result_capability.reject());
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});
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}
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PromiseConstructor::PromiseConstructor(Realm& realm)
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: NativeFunction(realm.vm().names.Promise.as_string(), realm.intrinsics().function_prototype())
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{
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}
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void PromiseConstructor::initialize(Realm& realm)
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{
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auto& vm = this->vm();
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Base::initialize(realm);
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// 27.2.4.4 Promise.prototype, https://tc39.es/ecma262/#sec-promise.prototype
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define_direct_property(vm.names.prototype, realm.intrinsics().promise_prototype(), 0);
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u8 attr = Attribute::Writable | Attribute::Configurable;
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define_native_function(realm, vm.names.all, all, 1, attr);
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define_native_function(realm, vm.names.allSettled, all_settled, 1, attr);
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define_native_function(realm, vm.names.any, any, 1, attr);
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define_native_function(realm, vm.names.race, race, 1, attr);
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define_native_function(realm, vm.names.reject, reject, 1, attr);
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define_native_function(realm, vm.names.resolve, resolve, 1, attr);
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define_native_function(realm, vm.names.try_, try_, 1, attr);
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define_native_function(realm, vm.names.withResolvers, with_resolvers, 0, attr);
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define_native_accessor(realm, vm.well_known_symbol_species(), symbol_species_getter, {}, Attribute::Configurable);
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define_direct_property(vm.names.length, Value(1), Attribute::Configurable);
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}
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// 27.2.3.1 Promise ( executor ), https://tc39.es/ecma262/#sec-promise-executor
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ThrowCompletionOr<Value> PromiseConstructor::call()
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{
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auto& vm = this->vm();
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// 1. If NewTarget is undefined, throw a TypeError exception.
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return vm.throw_completion<TypeError>(ErrorType::ConstructorWithoutNew, vm.names.Promise);
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}
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// 27.2.3.1 Promise ( executor ), https://tc39.es/ecma262/#sec-promise-executor
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ThrowCompletionOr<NonnullGCPtr<Object>> PromiseConstructor::construct(FunctionObject& new_target)
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{
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auto& vm = this->vm();
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auto executor = vm.argument(0);
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// 2. If IsCallable(executor) is false, throw a TypeError exception.
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if (!executor.is_function())
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return vm.throw_completion<TypeError>(ErrorType::PromiseExecutorNotAFunction);
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// 3. Let promise be ? OrdinaryCreateFromConstructor(NewTarget, "%Promise.prototype%", « [[PromiseState]], [[PromiseResult]], [[PromiseFulfillReactions]], [[PromiseRejectReactions]], [[PromiseIsHandled]] »).
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// 4. Set promise.[[PromiseState]] to pending.
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// 5. Set promise.[[PromiseFulfillReactions]] to a new empty List.
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// 6. Set promise.[[PromiseRejectReactions]] to a new empty List.
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// 7. Set promise.[[PromiseIsHandled]] to false.
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auto promise = TRY(ordinary_create_from_constructor<Promise>(vm, new_target, &Intrinsics::promise_prototype));
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// 8. Let resolvingFunctions be CreateResolvingFunctions(promise).
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auto [resolve_function, reject_function] = promise->create_resolving_functions();
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// 9. Let completion be Completion(Call(executor, undefined, « resolvingFunctions.[[Resolve]], resolvingFunctions.[[Reject]] »)).
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auto completion = JS::call(vm, executor.as_function(), js_undefined(), resolve_function, reject_function);
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// 10. If completion is an abrupt completion, then
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if (completion.is_error()) {
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// a. Perform ? Call(resolvingFunctions.[[Reject]], undefined, « completion.[[Value]] »).
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TRY(JS::call(vm, *reject_function, js_undefined(), *completion.release_error().value()));
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}
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// 11. Return promise.
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return promise;
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}
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// 27.2.4.1 Promise.all ( iterable ), https://tc39.es/ecma262/#sec-promise.all
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JS_DEFINE_NATIVE_FUNCTION(PromiseConstructor::all)
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{
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// 1. Let C be the this value.
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auto constructor = TRY(vm.this_value().to_object(vm));
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// 2. Let promiseCapability be ? NewPromiseCapability(C).
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auto promise_capability = TRY(new_promise_capability(vm, constructor));
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// 3. Let promiseResolve be Completion(GetPromiseResolve(C)).
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// 4. IfAbruptRejectPromise(promiseResolve, promiseCapability).
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auto promise_resolve = TRY_OR_REJECT(vm, promise_capability, get_promise_resolve(vm, constructor));
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// 5. Let iteratorRecord be Completion(GetIterator(iterable, sync)).
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// 6. IfAbruptRejectPromise(iteratorRecord, promiseCapability).
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auto iterator_record = TRY_OR_REJECT(vm, promise_capability, get_iterator(vm, vm.argument(0), IteratorHint::Sync));
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// 7. Let result be Completion(PerformPromiseAll(iteratorRecord, C, promiseCapability, promiseResolve)).
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auto result = perform_promise_all(vm, iterator_record, constructor, promise_capability, promise_resolve);
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// 8. If result is an abrupt completion, then
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if (result.is_error()) {
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// a. If iteratorRecord.[[Done]] is false, set result to Completion(IteratorClose(iteratorRecord, result)).
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if (!iterator_record->done)
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result = iterator_close(vm, iterator_record, result.release_error());
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// b. IfAbruptRejectPromise(result, promiseCapability).
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TRY_OR_REJECT(vm, promise_capability, result);
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}
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// 9. Return ? result.
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return result;
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}
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// 27.2.4.2 Promise.allSettled ( iterable ), https://tc39.es/ecma262/#sec-promise.allsettled
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JS_DEFINE_NATIVE_FUNCTION(PromiseConstructor::all_settled)
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{
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// 1. Let C be the this value.
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auto constructor = TRY(vm.this_value().to_object(vm));
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// 2. Let promiseCapability be ? NewPromiseCapability(C).
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auto promise_capability = TRY(new_promise_capability(vm, constructor));
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// 3. Let promiseResolve be Completion(GetPromiseResolve(C)).
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// 4. IfAbruptRejectPromise(promiseResolve, promiseCapability).
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auto promise_resolve = TRY_OR_REJECT(vm, promise_capability, get_promise_resolve(vm, constructor));
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// 5. Let iteratorRecord be Completion(GetIterator(iterable, sync)).
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// 6. IfAbruptRejectPromise(iteratorRecord, promiseCapability).
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auto iterator_record = TRY_OR_REJECT(vm, promise_capability, get_iterator(vm, vm.argument(0), IteratorHint::Sync));
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// 7. Let result be Completion(PerformPromiseAllSettled(iteratorRecord, C, promiseCapability, promiseResolve)).
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auto result = perform_promise_all_settled(vm, iterator_record, constructor, promise_capability, promise_resolve);
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// 8. If result is an abrupt completion, then
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if (result.is_error()) {
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// a. If iteratorRecord.[[Done]] is false, set result to Completion(IteratorClose(iteratorRecord, result)).
|
||||
if (!iterator_record->done)
|
||||
result = iterator_close(vm, iterator_record, result.release_error());
|
||||
|
||||
// b. IfAbruptRejectPromise(result, promiseCapability).
|
||||
TRY_OR_REJECT(vm, promise_capability, result);
|
||||
}
|
||||
|
||||
// 9. Return ? result.
|
||||
return result;
|
||||
}
|
||||
|
||||
// 27.2.4.3 Promise.any ( iterable ), https://tc39.es/ecma262/#sec-promise.any
|
||||
JS_DEFINE_NATIVE_FUNCTION(PromiseConstructor::any)
|
||||
{
|
||||
// 1. Let C be the this value.
|
||||
auto constructor = TRY(vm.this_value().to_object(vm));
|
||||
|
||||
// 2. Let promiseCapability be ? NewPromiseCapability(C).
|
||||
auto promise_capability = TRY(new_promise_capability(vm, constructor));
|
||||
|
||||
// 3. Let promiseResolve be Completion(GetPromiseResolve(C)).
|
||||
// 4. IfAbruptRejectPromise(promiseResolve, promiseCapability).
|
||||
auto promise_resolve = TRY_OR_REJECT(vm, promise_capability, get_promise_resolve(vm, constructor));
|
||||
|
||||
// 5. Let iteratorRecord be Completion(GetIterator(iterable, sync)).
|
||||
// 6. IfAbruptRejectPromise(iteratorRecord, promiseCapability).
|
||||
auto iterator_record = TRY_OR_REJECT(vm, promise_capability, get_iterator(vm, vm.argument(0), IteratorHint::Sync));
|
||||
|
||||
// 7. Let result be Completion(PerformPromiseAny(iteratorRecord, C, promiseCapability, promiseResolve)).
|
||||
auto result = perform_promise_any(vm, iterator_record, constructor, promise_capability, promise_resolve);
|
||||
|
||||
// 8. If result is an abrupt completion, then
|
||||
if (result.is_error()) {
|
||||
// a. If iteratorRecord.[[Done]] is false, set result to Completion(IteratorClose(iteratorRecord, result)).
|
||||
if (!iterator_record->done)
|
||||
result = iterator_close(vm, iterator_record, result.release_error());
|
||||
|
||||
// b. IfAbruptRejectPromise(result, promiseCapability).
|
||||
TRY_OR_REJECT(vm, promise_capability, result);
|
||||
}
|
||||
|
||||
// 9. Return ? result.
|
||||
return result;
|
||||
}
|
||||
|
||||
// 27.2.4.5 Promise.race ( iterable ), https://tc39.es/ecma262/#sec-promise.race
|
||||
JS_DEFINE_NATIVE_FUNCTION(PromiseConstructor::race)
|
||||
{
|
||||
// 1. Let C be the this value.
|
||||
auto constructor = TRY(vm.this_value().to_object(vm));
|
||||
|
||||
// 2. Let promiseCapability be ? NewPromiseCapability(C).
|
||||
auto promise_capability = TRY(new_promise_capability(vm, constructor));
|
||||
|
||||
// 3. Let promiseResolve be Completion(GetPromiseResolve(C)).
|
||||
// 4. IfAbruptRejectPromise(promiseResolve, promiseCapability).
|
||||
auto promise_resolve = TRY_OR_REJECT(vm, promise_capability, get_promise_resolve(vm, constructor));
|
||||
|
||||
// 5. Let iteratorRecord be Completion(GetIterator(iterable, sync)).
|
||||
// 6. IfAbruptRejectPromise(iteratorRecord, promiseCapability).
|
||||
auto iterator_record = TRY_OR_REJECT(vm, promise_capability, get_iterator(vm, vm.argument(0), IteratorHint::Sync));
|
||||
|
||||
// 7. Let result be Completion(PerformPromiseRace(iteratorRecord, C, promiseCapability, promiseResolve)).
|
||||
auto result = perform_promise_race(vm, iterator_record, constructor, promise_capability, promise_resolve);
|
||||
|
||||
// 8. If result is an abrupt completion, then
|
||||
if (result.is_error()) {
|
||||
// a. If iteratorRecord.[[Done]] is false, set result to Completion(IteratorClose(iteratorRecord, result)).
|
||||
if (!iterator_record->done)
|
||||
result = iterator_close(vm, iterator_record, result.release_error());
|
||||
|
||||
// b. IfAbruptRejectPromise(result, promiseCapability).
|
||||
TRY_OR_REJECT(vm, promise_capability, result);
|
||||
}
|
||||
|
||||
// 9. Return ? result.
|
||||
return result;
|
||||
}
|
||||
|
||||
// 27.2.4.6 Promise.reject ( r ), https://tc39.es/ecma262/#sec-promise.reject
|
||||
JS_DEFINE_NATIVE_FUNCTION(PromiseConstructor::reject)
|
||||
{
|
||||
auto reason = vm.argument(0);
|
||||
|
||||
// 1. Let C be the this value.
|
||||
auto constructor = TRY(vm.this_value().to_object(vm));
|
||||
|
||||
// 2. Let promiseCapability be ? NewPromiseCapability(C).
|
||||
auto promise_capability = TRY(new_promise_capability(vm, constructor));
|
||||
|
||||
// 3. Perform ? Call(promiseCapability.[[Reject]], undefined, « r »).
|
||||
[[maybe_unused]] auto result = TRY(JS::call(vm, *promise_capability->reject(), js_undefined(), reason));
|
||||
|
||||
// 4. Return promiseCapability.[[Promise]].
|
||||
return promise_capability->promise();
|
||||
}
|
||||
|
||||
// 27.2.4.7 Promise.resolve ( x ), https://tc39.es/ecma262/#sec-promise.resolve
|
||||
JS_DEFINE_NATIVE_FUNCTION(PromiseConstructor::resolve)
|
||||
{
|
||||
auto value = vm.argument(0);
|
||||
|
||||
// 1. Let C be the this value.
|
||||
auto constructor = vm.this_value();
|
||||
|
||||
// 2. If Type(C) is not Object, throw a TypeError exception.
|
||||
if (!constructor.is_object())
|
||||
return vm.throw_completion<TypeError>(ErrorType::NotAnObject, constructor.to_string_without_side_effects());
|
||||
|
||||
// 3. Return ? PromiseResolve(C, x).
|
||||
return TRY(promise_resolve(vm, constructor.as_object(), value));
|
||||
}
|
||||
|
||||
// 27.2.4.8 Promise.try ( callback, ...args ), https://tc39.es/ecma262/#sec-promise.try
|
||||
JS_DEFINE_NATIVE_FUNCTION(PromiseConstructor::try_)
|
||||
{
|
||||
auto callback = vm.argument(0);
|
||||
Span<Value> args;
|
||||
if (vm.argument_count() > 1) {
|
||||
args = vm.running_execution_context().arguments.span().slice(1, vm.argument_count() - 1);
|
||||
}
|
||||
|
||||
// 1. Let C be the this value.
|
||||
auto constructor = vm.this_value();
|
||||
|
||||
// 2. If C is not an Object, throw a TypeError exception.
|
||||
if (!constructor.is_object())
|
||||
return vm.throw_completion<TypeError>(ErrorType::NotAnObject, constructor.to_string_without_side_effects());
|
||||
|
||||
// 3. Let promiseCapability be ? NewPromiseCapability(C).
|
||||
auto promise_capability = TRY(new_promise_capability(vm, constructor));
|
||||
|
||||
// 4. Let status be Completion(Call(callback, undefined, args)).
|
||||
auto status = JS::call(vm, callback, js_undefined(), args);
|
||||
|
||||
// 5. If status is an abrupt completion, then
|
||||
if (status.is_throw_completion()) {
|
||||
// a. Perform ? Call(promiseCapability.[[Reject]], undefined, « status.[[Value]] »).
|
||||
TRY(JS::call(vm, *promise_capability->reject(), js_undefined(), *status.throw_completion().value()));
|
||||
}
|
||||
// 6. Else,
|
||||
else {
|
||||
// a. Perform ? Call(promiseCapability.[[Resolve]], undefined, « status.[[Value]] »).
|
||||
TRY(JS::call(vm, *promise_capability->resolve(), js_undefined(), status.value()));
|
||||
}
|
||||
|
||||
// 7. Return promiseCapability.[[Promise]].
|
||||
return promise_capability->promise();
|
||||
}
|
||||
|
||||
// 27.2.4.9 Promise.withResolvers ( ), https://tc39.es/ecma262/#sec-promise.withResolvers
|
||||
JS_DEFINE_NATIVE_FUNCTION(PromiseConstructor::with_resolvers)
|
||||
{
|
||||
auto& realm = *vm.current_realm();
|
||||
|
||||
// 1. Let C be the this value.
|
||||
auto constructor = vm.this_value();
|
||||
|
||||
// 2. Let promiseCapability be ? NewPromiseCapability(C).
|
||||
auto promise_capability = TRY(new_promise_capability(vm, constructor));
|
||||
|
||||
// 3. Let obj be OrdinaryObjectCreate(%Object.prototype%).
|
||||
auto object = Object::create(realm, realm.intrinsics().object_prototype());
|
||||
|
||||
// 4. Perform ! CreateDataPropertyOrThrow(obj, "promise", promiseCapability.[[Promise]]).
|
||||
MUST(object->create_data_property_or_throw(vm.names.promise, promise_capability->promise()));
|
||||
|
||||
// 5. Perform ! CreateDataPropertyOrThrow(obj, "resolve", promiseCapability.[[Resolve]]).
|
||||
MUST(object->create_data_property_or_throw(vm.names.resolve, promise_capability->resolve()));
|
||||
|
||||
// 6. Perform ! CreateDataPropertyOrThrow(obj, "reject", promiseCapability.[[Reject]]).
|
||||
MUST(object->create_data_property_or_throw(vm.names.reject, promise_capability->reject()));
|
||||
|
||||
// 7. Return obj.
|
||||
return object;
|
||||
}
|
||||
|
||||
// 27.2.4.10 get Promise [ @@species ], https://tc39.es/ecma262/#sec-get-promise-@@species
|
||||
JS_DEFINE_NATIVE_FUNCTION(PromiseConstructor::symbol_species_getter)
|
||||
{
|
||||
// 1. Return the this value.
|
||||
return vm.this_value();
|
||||
}
|
||||
|
||||
}
|
Loading…
Add table
Add a link
Reference in a new issue