1 files changed, 20 insertions, 0 deletions
diff --git a/std/encoding/_yaml/error.ts b/std/encoding/_yaml/error.ts
new file mode 100644
index 000000000..7f305ccf2
--- /dev/null
+++ b/std/encoding/_yaml/error.ts
@@ -0,0 +1,20 @@
+// Ported from js-yaml v3.13.1:
+// https://github.com/nodeca/js-yaml/commit/665aadda42349dcae869f12040d9b10ef18d12da
+// Copyright 2011-2015 by Vitaly Puzrin. All rights reserved. MIT license.
+// Copyright 2018-2020 the Deno authors. All rights reserved. MIT license.
+
+import { Mark } from "./mark.ts";
+
+export class YAMLError extends Error {
+  constructor(
+    message = "(unknown reason)",
+    protected mark: Mark | string = ""
+  ) {
+    super(`${message} ${mark}`);
+    this.name = this.constructor.name;
+  }
+
+  public toString(_compact: boolean): string {
+    return `${this.name}: ${this.message} ${this.mark}`;
+  }
+}