Everywhere: Hoist the Libraries folder to the top-level

Author: https://github.com/trflynn89
Commit: 93712b24bf
Pull-request: https://github.com/LadybirdBrowser/ladybird/pull/2256
Reviewed-by: https://github.com/sideshowbarker

Libraries/LibWeb/Streams/WritableStreamDefaultController.cpp

@@ -0,0 +1,68 @@
+/*
+ * Copyright (c) 2023, Matthew Olsson <mattco@serenityos.org>
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+
+#include <LibWeb/Bindings/WritableStreamDefaultControllerPrototype.h>
+#include <LibWeb/DOM/AbortSignal.h>
+#include <LibWeb/Streams/WritableStream.h>
+#include <LibWeb/Streams/WritableStreamDefaultController.h>
+
+namespace Web::Streams {
+
+JS_DEFINE_ALLOCATOR(WritableStreamDefaultController);
+
+void WritableStreamDefaultController::visit_edges(Visitor& visitor)
+{
+    Base::visit_edges(visitor);
+    visitor.visit(m_signal);
+    for (auto& value : m_queue)
+        visitor.visit(value.value);
+    visitor.visit(m_stream);
+    visitor.visit(m_abort_algorithm);
+    visitor.visit(m_close_algorithm);
+    visitor.visit(m_strategy_size_algorithm);
+    visitor.visit(m_write_algorithm);
+}
+
+// https://streams.spec.whatwg.org/#ws-default-controller-error
+void WritableStreamDefaultController::error(JS::Value error)
+{
+    // 1. Let state be this.[[stream]].[[state]].
+    auto state = m_stream->state();
+
+    // 2. If state is not "writable", return.
+    if (state != WritableStream::State::Writable)
+        return;
+
+    // 3. Perform ! WritableStreamDefaultControllerError(this, e).
+    writable_stream_default_controller_error(*this, error);
+}
+
+// https://streams.spec.whatwg.org/#ws-default-controller-private-abort
+JS::NonnullGCPtr<WebIDL::Promise> WritableStreamDefaultController::abort_steps(JS::Value reason)
+{
+    // 1. Let result be the result of performing this.[[abortAlgorithm]], passing reason.
+    auto result = m_abort_algorithm->function()(reason);
+
+    // 2. Perform ! WritableStreamDefaultControllerClearAlgorithms(this).
+    writable_stream_default_controller_clear_algorithms(*this);
+
+    // 3. Return result.
+    return result;
+}
+
+// https://streams.spec.whatwg.org/#ws-default-controller-private-error
+void WritableStreamDefaultController::error_steps()
+{
+    // 1. Perform ! ResetQueue(this).
+    reset_queue(*this);
+}
+
+WritableStreamDefaultController::WritableStreamDefaultController(JS::Realm& realm)
+    : Bindings::PlatformObject(realm)
+{
+}
+
+}