fix(web): implement DOMException#code (#9015)

Co-authored-by: Luca Casonato <lucacasonato@yahoo.com>

1 files changed, 45 insertions, 10 deletions

diff --git a/op_crates/web/00_dom_exception.js b/op_crates/web/00_dom_exception.js
index 6d72779b0..5fb130452 100644
--- a/op_crates/web/00_dom_exception.js
+++ b/op_crates/web/00_dom_exception.js
@@ -1,15 +1,50 @@
 // Copyright 2018-2020 the Deno authors. All rights reserved. MIT license.
 
-// eslint-disable-next-line @typescript-eslint/no-unused-vars
-class DOMException extends Error {
-  #name = "";
+((window) => {
+  const nameToCodeMapping = Object.create(
+    null,
+    {
+      IndexSizeError: { value: 1 },
+      HierarchyRequestError: { value: 3 },
+      WrongDocumentError: { value: 4 },
+      InvalidCharacterError: { value: 5 },
+      NoModificationAllowedError: { value: 7 },
+      NotFoundError: { value: 8 },
+      NotSupportedError: { value: 9 },
+      InvalidStateError: { value: 11 },
+      SyntaxError: { value: 12 },
+      InvalidModificationError: { value: 13 },
+      NamespaceError: { value: 14 },
+      InvalidAccessError: { value: 15 },
+      TypeMismatchError: { value: 17 },
+      SecurityError: { value: 18 },
+      NetworkError: { value: 19 },
+      AbortError: { value: 20 },
+      URLMismatchError: { value: 21 },
+      QuotaExceededError: { value: 22 },
+      TimeoutError: { value: 23 },
+      InvalidNodeTypeError: { value: 24 },
+      DataCloneError: { value: 25 },
+    },
+  );
+  class DOMException extends Error {
+    #name = "";
+    #code = 0;
 
-  constructor(message = "", name = "Error") {
-    super(message);
-    this.#name = name;
-  }
+    constructor(message = "", name = "Error") {
+      super(message);
+      this.#name = name;
+      this.#code = nameToCodeMapping[name] ?? 0;
+    }
+
+    get name() {
+      return this.#name;
+    }
 
-  get name() {
-    return this.#name;
+    get code() {
+      return this.#code;
+    }
   }
-}
+
+  window.DOMException = DOMException;
+})(this);