feat: [类型] 函数返回结果 (#67)

zsqk · May 23, 2024 · 78a9b42 · 78a9b42
1 parent d4e4c34
commit 78a9b42
Showing 1 changed file with 9 additions and 0 deletions.
diff --git a/ts/error.ts b/ts/error.ts
@@ -8,3 +8,12 @@ export function assertError(v: unknown): asserts v is Error {
     throw new TypeError(`should be Error but ${v}`);
   }
 }
+
+/**
+ * [类型] 函数返回结果
+ *
+ * @description 可能出现错误的结果 (类似 Rust Result)
+ */
+export type Result<T, E extends Error = Error, L extends boolean = true> =
+  L extends true ? [E, null] | [true, null] | [null, T]
+    : [E, null] | [null, T];