Implement WebResult

index.ts

@@ -0,0 +1,29 @@
+import {Result, State} from 'result'
+export {State} from 'result'
+
+// @ts-expect-error
+export class WebResult<T> extends Result<T, number> {
+    public constructor(
+        _data: T | number,
+        _state: State,
+    ) {
+        super(_data, _state)
+    }
+
+    public static ok<T, U>(data: T) : WebResult<T> {
+        return new WebResult<T>(data, State.OK)
+    }
+    public static error<T>(code: number) : WebResult<T> {
+        return new WebResult<T>(code, State.ERROR)
+    }
+
+    public as_response<V>(error: (code: number) => V) : T | V {
+        if (this.state() === State.OK) {
+            // @ts-expect-error
+            return this._data
+        }
+
+        // @ts-expect-error
+        return error(this._data)
+    }
+}