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LibWeb: Clarify WebIDL::Promise as an alias for JS::PromiseCapability

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This patch adds the WebIDL::Promise type explicitly defined in the
WebIDL spec to be a PromiseCapability Record from ecma262.
This commit is contained in:
networkException 2023-02-13 11:58:39 +01:00 • committed by Linus Groh
parent 863afbaf38
commit f1dd4f42bc
6 changed files with 38 additions and 32 deletions
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36
Userland/Libraries/LibWeb/WebIDL/Promise.cpp
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@ -16,7 +16,7 @@
namespace Web::WebIDL {
// https://webidl.spec.whatwg.org/#a-new-promise
JS::NonnullGCPtr<JS::PromiseCapability> create_promise(JS::Realm& realm)
JS::NonnullGCPtr<Promise> create_promise(JS::Realm& realm)
{
auto& vm = realm.vm();
@ -29,7 +29,7 @@ JS::NonnullGCPtr<JS::PromiseCapability> create_promise(JS::Realm& realm)
}
// https://webidl.spec.whatwg.org/#a-promise-resolved-with
JS::NonnullGCPtr<JS::PromiseCapability> create_resolved_promise(JS::Realm& realm, JS::Value value)
JS::NonnullGCPtr<Promise> create_resolved_promise(JS::Realm& realm, JS::Value value)
{
auto& vm = realm.vm();
@ -50,7 +50,7 @@ JS::NonnullGCPtr<JS::PromiseCapability> create_resolved_promise(JS::Realm& realm
}
// https://webidl.spec.whatwg.org/#a-promise-rejected-with
JS::NonnullGCPtr<JS::PromiseCapability> create_rejected_promise(JS::Realm& realm, JS::Value reason)
JS::NonnullGCPtr<Promise> create_rejected_promise(JS::Realm& realm, JS::Value reason)
{
auto& vm = realm.vm();
@ -69,7 +69,7 @@ JS::NonnullGCPtr<JS::PromiseCapability> create_rejected_promise(JS::Realm& realm
}
// https://webidl.spec.whatwg.org/#resolve
void resolve_promise(JS::VM& vm, JS::PromiseCapability const& promise_capability, JS::Value value)
void resolve_promise(JS::VM& vm, Promise const& promise, JS::Value value)
{
// 1. If x is not given, then let it be the undefined value.
// NOTE: This is done via the default argument.
@ -77,20 +77,20 @@ void resolve_promise(JS::VM& vm, JS::PromiseCapability const& promise_capability
// 2. Let value be the result of converting x to an ECMAScript value.
// 3. Perform ! Call(p.[[Resolve]], undefined, « value »).
MUST(JS::call(vm, *promise_capability.resolve(), JS::js_undefined(), value));
MUST(JS::call(vm, *promise.resolve(), JS::js_undefined(), value));
}
// https://webidl.spec.whatwg.org/#reject
void reject_promise(JS::VM& vm, JS::PromiseCapability const& promise_capability, JS::Value reason)
void reject_promise(JS::VM& vm, Promise const& promise, JS::Value reason)
{
// 1. Perform ! Call(p.[[Reject]], undefined, « r »).
MUST(JS::call(vm, *promise_capability.reject(), JS::js_undefined(), reason));
MUST(JS::call(vm, *promise.reject(), JS::js_undefined(), reason));
}
// https://webidl.spec.whatwg.org/#dfn-perform-steps-once-promise-is-settled
JS::NonnullGCPtr<JS::Promise> react_to_promise(JS::PromiseCapability const& promise_capability, Optional<ReactionSteps> on_fulfilled_callback, Optional<ReactionSteps> on_rejected_callback)
JS::NonnullGCPtr<JS::Promise> react_to_promise(Promise const& promise, Optional<ReactionSteps> on_fulfilled_callback, Optional<ReactionSteps> on_rejected_callback)
{
auto& realm = promise_capability.promise()->shape().realm();
auto& realm = promise.promise()->shape().realm();
auto& vm = realm.vm();
// 1. Let onFulfilledSteps be the following steps given argument V:
@ -135,16 +135,16 @@ JS::NonnullGCPtr<JS::Promise> react_to_promise(JS::PromiseCapability const& prom
auto new_capability = MUST(JS::new_promise_capability(vm, constructor));
// 7. Return PerformPromiseThen(promise.[[Promise]], onFulfilled, onRejected, newCapability).
auto promise = verify_cast<JS::Promise>(promise_capability.promise().ptr());
auto value = promise->perform_then(on_fulfilled, on_rejected, new_capability);
auto promise_object = verify_cast<JS::Promise>(promise.promise().ptr());
auto value = promise_object->perform_then(on_fulfilled, on_rejected, new_capability);
return verify_cast<JS::Promise>(value.as_object());
}
// https://webidl.spec.whatwg.org/#upon-fulfillment
JS::NonnullGCPtr<JS::Promise> upon_fulfillment(JS::PromiseCapability const& promise_capability, ReactionSteps steps)
JS::NonnullGCPtr<JS::Promise> upon_fulfillment(Promise const& promise, ReactionSteps steps)
{
// 1. Return the result of reacting to promise:
return react_to_promise(promise_capability,
return react_to_promise(promise,
// - If promise was fulfilled with value v, then:
[steps = move(steps)](auto value) {
// 1. Perform steps with v.
@ -156,10 +156,10 @@ JS::NonnullGCPtr<JS::Promise> upon_fulfillment(JS::PromiseCapability const& prom
}
// https://webidl.spec.whatwg.org/#upon-rejection
JS::NonnullGCPtr<JS::Promise> upon_rejection(JS::PromiseCapability const& promise_capability, ReactionSteps steps)
JS::NonnullGCPtr<JS::Promise> upon_rejection(Promise const& promise, ReactionSteps steps)
{
// 1. Return the result of reacting to promise:
return react_to_promise(promise_capability, {},
return react_to_promise(promise, {},
// - If promise was rejected with reason r, then:
[steps = move(steps)](auto reason) {
// 1. Perform steps with r.
@ -170,11 +170,11 @@ JS::NonnullGCPtr<JS::Promise> upon_rejection(JS::PromiseCapability const& promis
}
// https://webidl.spec.whatwg.org/#mark-a-promise-as-handled
void mark_promise_as_handled(JS::PromiseCapability const& promise_capability)
void mark_promise_as_handled(Promise const& promise)
{
// To mark as handled a Promise<T> promise, set promise.[[Promise]].[[PromiseIsHandled]] to true.
auto promise = verify_cast<JS::Promise>(promise_capability.promise().ptr());
promise->set_is_handled();
auto promise_object = verify_cast<JS::Promise>(promise.promise().ptr());
promise_object->set_is_handled();
}
}