1 files changed, 38 insertions, 0 deletions
diff --git a/dom/webtransport/api/WebTransportError.cpp b/dom/webtransport/api/WebTransportError.cpp
new file mode 100644
index 0000000000..8451e3937f
--- /dev/null
+++ b/dom/webtransport/api/WebTransportError.cpp
@@ -0,0 +1,38 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "WebTransportError.h"
+
+namespace mozilla::dom {
+
+JSObject* WebTransportError::WrapObject(JSContext* aCx,
+                                        JS::Handle<JSObject*> aGivenProto) {
+  return WebTransportError_Binding::Wrap(aCx, this, aGivenProto);
+}
+
+/* static */
+already_AddRefed<WebTransportError> WebTransportError::Constructor(
+    const GlobalObject& aGlobal, const WebTransportErrorInit& aInit) {
+  //  https://w3c.github.io/webtransport/#web-transport-error-constructor1
+
+  // Step 2: Let message be init.message if it exists, and "" otherwise.
+  nsCString message(""_ns);
+  if (aInit.mMessage.WasPassed()) {
+    CopyUTF16toUTF8(aInit.mMessage.Value(), message);
+  }
+
+  // Step 1: Let error be this.
+  // Step 3: Set up error with message and "stream".
+  RefPtr<WebTransportError> error(new WebTransportError(message));
+
+  // Step 4: Set error.[[StreamErrorCode]] to init.streamErrorCode if it exists.
+  if (aInit.mStreamErrorCode.WasPassed()) {
+    error->mStreamErrorCode = Nullable(aInit.mStreamErrorCode.Value());
+  }
+  return error.forget();
+}
+
+}  // namespace mozilla::dom