1 files changed, 41 insertions, 0 deletions
diff --git a/dom/webgpu/ValidationError.cpp b/dom/webgpu/ValidationError.cpp
new file mode 100644
index 0000000000..119156713c
--- /dev/null
+++ b/dom/webgpu/ValidationError.cpp
@@ -0,0 +1,41 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* 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 "ValidationError.h"
+#include "mozilla/dom/WebGPUBinding.h"
+#include "mozilla/ErrorResult.h"
+#include "nsIGlobalObject.h"
+#include "nsReadableUtils.h"
+
+namespace mozilla::webgpu {
+
+GPU_IMPL_CYCLE_COLLECTION(ValidationError, mGlobal)
+GPU_IMPL_JS_WRAP(ValidationError)
+
+ValidationError::ValidationError(nsIGlobalObject* aGlobal,
+                                 const nsACString& aMessage)
+    : mGlobal(aGlobal) {
+  CopyUTF8toUTF16(aMessage, mMessage);
+}
+
+ValidationError::ValidationError(nsIGlobalObject* aGlobal,
+                                 const nsAString& aMessage)
+    : mGlobal(aGlobal), mMessage(aMessage) {}
+
+ValidationError::~ValidationError() = default;
+
+already_AddRefed<ValidationError> ValidationError::Constructor(
+    const dom::GlobalObject& aGlobal, const nsAString& aString,
+    ErrorResult& aRv) {
+  nsCOMPtr<nsIGlobalObject> global = do_QueryInterface(aGlobal.GetAsSupports());
+  if (!global) {
+    aRv.ThrowInvalidStateError("aGlobal is not nsIGlobalObject");
+    return nullptr;
+  }
+
+  return MakeAndAddRef<ValidationError>(global, aString);
+}
+
+}  // namespace mozilla::webgpu