From be9432a893dd1662c10ff41c7ab552bcba8f3e1b Mon Sep 17 00:00:00 2001
From: Dax <mail@thdxr.com>
Date: Wed, 15 Apr 2026 10:26:20 -0400
Subject: shared package (#22626)

---
 packages/shared/src/util/error.ts | 54 +++++++++++++++++++++++++++++++++++++++
 1 file changed, 54 insertions(+)
 create mode 100644 packages/shared/src/util/error.ts

(limited to 'packages/shared/src/util/error.ts')

diff --git a/packages/shared/src/util/error.ts b/packages/shared/src/util/error.ts
new file mode 100644
index 000000000..12c27a0a7
--- /dev/null
+++ b/packages/shared/src/util/error.ts
@@ -0,0 +1,54 @@
+import z from "zod"
+
+export abstract class NamedError extends Error {
+  abstract schema(): z.core.$ZodType
+  abstract toObject(): { name: string; data: any }
+
+  static create<Name extends string, Data extends z.core.$ZodType>(name: Name, data: Data) {
+    const schema = z
+      .object({
+        name: z.literal(name),
+        data,
+      })
+      .meta({
+        ref: name,
+      })
+    const result = class extends NamedError {
+      public static readonly Schema = schema
+
+      public override readonly name = name as Name
+
+      constructor(
+        public readonly data: z.input<Data>,
+        options?: ErrorOptions,
+      ) {
+        super(name, options)
+        this.name = name
+      }
+
+      static isInstance(input: any): input is InstanceType<typeof result> {
+        return typeof input === "object" && "name" in input && input.name === name
+      }
+
+      schema() {
+        return schema
+      }
+
+      toObject() {
+        return {
+          name: name,
+          data: this.data,
+        }
+      }
+    }
+    Object.defineProperty(result, "name", { value: name })
+    return result
+  }
+
+  public static readonly Unknown = NamedError.create(
+    "UnknownError",
+    z.object({
+      message: z.string(),
+    }),
+  )
+}
-- 
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