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LibWeb: Port Stream algorithms from JS::SafeFunction to JS::HeapFunction

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Shannon Booth 2024-01-26 18:54:24 +13:00 • committed by Tim Flynn
parent e118430648
commit 5f484d200a
14 changed files with 211 additions and 189 deletions
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19
Userland/Libraries/LibWeb/Fetch/Infrastructure/HTTP/Bodies.cpp
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@ -4,6 +4,7 @@
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <LibJS/Heap/HeapFunction.h>
#include <LibJS/Runtime/PromiseCapability.h>
#include <LibWeb/Bindings/MainThreadVM.h>
#include <LibWeb/Fetch/BodyInit.h>
@ -55,14 +56,22 @@ JS::NonnullGCPtr<Body> Body::clone(JS::Realm& realm) const
// FIXME: 2. Set body’s stream to out1.
JS::GCPtr<Streams::ReadableStream> out2;
Streams::StartAlgorithm start_algorithm = []() { return JS::js_undefined(); };
Streams::PullAlgorithm pull_algorithm = [&realm]() { return WebIDL::create_resolved_promise(realm, JS::js_undefined()); };
Streams::CancelAlgorithm cancel_algorithm = [&realm](auto) { return WebIDL::create_resolved_promise(realm, JS::js_undefined()); };
auto start_algorithm = JS::create_heap_function(realm.heap(), []() -> WebIDL::ExceptionOr<JS::Value> {
return JS::js_undefined();
});
auto pull_algorithm = JS::create_heap_function(realm.heap(), [&realm]() -> WebIDL::ExceptionOr<JS::NonnullGCPtr<WebIDL::Promise>> {
return WebIDL::create_resolved_promise(realm, JS::js_undefined());
});
auto cancel_algorithm = JS::create_heap_function(realm.heap(), [&realm](JS::Value) -> WebIDL::ExceptionOr<JS::NonnullGCPtr<WebIDL::Promise>> {
return WebIDL::create_resolved_promise(realm, JS::js_undefined());
});
if (m_stream->controller()->has<JS::NonnullGCPtr<Streams::ReadableStreamDefaultController>>()) {
out2 = Streams::create_readable_stream(realm, move(start_algorithm), move(pull_algorithm), move(cancel_algorithm)).release_value_but_fixme_should_propagate_errors();
out2 = Streams::create_readable_stream(realm, start_algorithm, pull_algorithm, cancel_algorithm).release_value_but_fixme_should_propagate_errors();
} else {
out2 = Streams::create_readable_byte_stream(realm, move(start_algorithm), move(pull_algorithm), move(cancel_algorithm)).release_value_but_fixme_should_propagate_errors();
out2 = Streams::create_readable_byte_stream(realm, start_algorithm, pull_algorithm, cancel_algorithm).release_value_but_fixme_should_propagate_errors();
}
// 3. Return a body whose stream is out2 and other members are copied from body.