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LibWeb: Add and use a helper to reject a promise with an exception

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This commit is contained in:
Sam Atkins 2024-03-08 15:37:28 +00:00 • committed by Tim Flynn
parent 24951a039e
commit 4bdb7dba8c
10 changed files with 42 additions and 52 deletions
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15
Userland/Libraries/LibWeb/FileAPI/Blob.cpp
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@ -367,11 +367,8 @@ WebIDL::ExceptionOr<JS::NonnullGCPtr<JS::Promise>> Blob::text()
// 2. Let reader be the result of getting a reader from stream. If that threw an exception, return a new promise rejected with that exception.
auto reader_or_exception = acquire_readable_stream_default_reader(*stream);
if (reader_or_exception.is_exception()) {
auto throw_completion = Bindings::dom_exception_to_throw_completion(vm, reader_or_exception.exception());
auto promise_capability = WebIDL::create_rejected_promise(realm, *throw_completion.value());
return JS::NonnullGCPtr { verify_cast<JS::Promise>(*promise_capability->promise().ptr()) };
}
if (reader_or_exception.is_exception())
return WebIDL::create_rejected_promise_from_exception(realm, reader_or_exception.release_error());
auto reader = reader_or_exception.release_value();
// 3. Let promise be the result of reading all bytes from stream with reader
@ -393,18 +390,14 @@ WebIDL::ExceptionOr<JS::NonnullGCPtr<JS::Promise>> Blob::text()
WebIDL::ExceptionOr<JS::NonnullGCPtr<JS::Promise>> Blob::array_buffer()
{
auto& realm = this->realm();
auto& vm = realm.vm();
// 1. Let stream be the result of calling get stream on this.
auto stream = TRY(this->get_stream());
// 2. Let reader be the result of getting a reader from stream. If that threw an exception, return a new promise rejected with that exception.
auto reader_or_exception = acquire_readable_stream_default_reader(*stream);
if (reader_or_exception.is_exception()) {
auto throw_completion = Bindings::dom_exception_to_throw_completion(vm, reader_or_exception.exception());
auto promise_capability = WebIDL::create_rejected_promise(realm, *throw_completion.value());
return JS::NonnullGCPtr { verify_cast<JS::Promise>(*promise_capability->promise().ptr()) };
}
if (reader_or_exception.is_exception())
return WebIDL::create_rejected_promise_from_exception(realm, reader_or_exception.release_error());
auto reader = reader_or_exception.release_value();
// 3. Let promise be the result of reading all bytes from stream with reader.