From ed06429d33964a88754ada727937b6bb5a6407d6 Mon Sep 17 00:00:00 2001
From: Matthew Olsson <matthewcolsson@gmail.com>
Date: Sun, 9 Apr 2023 10:42:13 -0700
Subject: [PATCH] LibWeb: Implement ReadableByteStreamController.error()

---
 .../LibWeb/Streams/ReadableByteStreamController.cpp        | 7 +++++++
 .../LibWeb/Streams/ReadableByteStreamController.h          | 1 +
 .../LibWeb/Streams/ReadableByteStreamController.idl        | 2 +-
 3 files changed, 9 insertions(+), 1 deletion(-)

diff --git a/Userland/Libraries/LibWeb/Streams/ReadableByteStreamController.cpp b/Userland/Libraries/LibWeb/Streams/ReadableByteStreamController.cpp
index 11f54242e8..1c0974ad6a 100644
--- a/Userland/Libraries/LibWeb/Streams/ReadableByteStreamController.cpp
+++ b/Userland/Libraries/LibWeb/Streams/ReadableByteStreamController.cpp
@@ -37,6 +37,13 @@ WebIDL::ExceptionOr<void> ReadableByteStreamController::close()
     return {};
 }
 
+// https://streams.spec.whatwg.org/#rbs-controller-error
+void ReadableByteStreamController::error(JS::Value error)
+{
+    // 1. Perform ! ReadableByteStreamControllerError(this, e).
+    readable_byte_stream_controller_error(*this, error);
+}
+
 ReadableByteStreamController::ReadableByteStreamController(JS::Realm& realm)
     : Bindings::PlatformObject(realm)
 {
diff --git a/Userland/Libraries/LibWeb/Streams/ReadableByteStreamController.h b/Userland/Libraries/LibWeb/Streams/ReadableByteStreamController.h
index 520f554953..f4e3c79804 100644
--- a/Userland/Libraries/LibWeb/Streams/ReadableByteStreamController.h
+++ b/Userland/Libraries/LibWeb/Streams/ReadableByteStreamController.h
@@ -81,6 +81,7 @@ public:
 
     Optional<double> desired_size() const;
     WebIDL::ExceptionOr<void> close();
+    void error(JS::Value error);
 
     Optional<u32> const& auto_allocate_chunk_size() { return m_auto_allocate_chunk_size; }
     void set_auto_allocate_chunk_size(Optional<u32> value) { m_auto_allocate_chunk_size = value; }
diff --git a/Userland/Libraries/LibWeb/Streams/ReadableByteStreamController.idl b/Userland/Libraries/LibWeb/Streams/ReadableByteStreamController.idl
index 923a2238d3..71def45329 100644
--- a/Userland/Libraries/LibWeb/Streams/ReadableByteStreamController.idl
+++ b/Userland/Libraries/LibWeb/Streams/ReadableByteStreamController.idl
@@ -6,8 +6,8 @@ interface ReadableByteStreamController {
     readonly attribute unrestricted double? desiredSize;
 
     undefined close();
+    undefined error(optional any e);
 
     // FIXME: Implement
     // undefined enqueue(ArrayBufferView chunk);
-    // undefined error(optional any e);
 };