fix(asyncComputed): fix types for AsyncComputedOptions

antfu · antfu · commit 217cc54da3fe · 2025-05-27T17:51:56.000+09:00
diff --git a/packages/core/computedAsync/index.test.ts b/packages/core/computedAsync/index.test.ts
@@ -285,4 +285,14 @@ describe('computedAsync', () => {
     await vi.advanceTimersByTimeAsync(10)
     expect(uppercase.value).toBe('FINAL')
   })
+
+  it('type when lazy is a boolean', async () => {
+    const lazy: boolean = true
+    const data = [] as string[]
+    const data1 = computedAsync(async () => data, [], { lazy })
+    const data2 = computedAsync(async () => data, undefined, { lazy })
+
+    expectTypeOf(data1).toEqualTypeOf<ComputedRef<string[]>>()
+    expectTypeOf(data2).toEqualTypeOf<ComputedRef<string[] | undefined>>()
+  })
 })
diff --git a/packages/core/computedAsync/index.ts b/packages/core/computedAsync/index.ts
@@ -16,13 +16,13 @@ import {
  */
 export type AsyncComputedOnCancel = (cancelCallback: Fn) => void
 
-export interface AsyncComputedOptions {
+export interface AsyncComputedOptions<Lazy = boolean> {
   /**
    * Should value be evaluated lazily
    *
    * @default false
    */
-  lazy?: boolean
+  lazy?: Lazy
 
   /**
    * Ref passed to receive the updated of async evaluation
@@ -63,22 +63,22 @@ export interface AsyncComputedOptions {
 export function computedAsync<T>(
   evaluationCallback: (onCancel: AsyncComputedOnCancel) => T | Promise<T>,
   initialState: T,
-  optionsOrRef: AsyncComputedOptions & { lazy: true },
+  optionsOrRef: AsyncComputedOptions<true>,
 ): ComputedRef<T>
 export function computedAsync<T>(
   evaluationCallback: (onCancel: AsyncComputedOnCancel) => T | Promise<T>,
   initialState: undefined,
-  optionsOrRef: AsyncComputedOptions & { lazy: true },
+  optionsOrRef: AsyncComputedOptions<true>,
 ): ComputedRef<T | undefined>
 export function computedAsync<T>(
   evaluationCallback: (onCancel: AsyncComputedOnCancel) => T | Promise<T>,
   initialState: T,
-  optionsOrRef?: Ref<boolean> | (AsyncComputedOptions & { lazy?: false | undefined }),
+  optionsOrRef?: Ref<boolean> | AsyncComputedOptions,
 ): Ref<T>
 export function computedAsync<T>(
   evaluationCallback: (onCancel: AsyncComputedOnCancel) => T | Promise<T>,
   initialState?: undefined,
-  optionsOrRef?: Ref<boolean> | (AsyncComputedOptions & { lazy?: false | undefined }),
+  optionsOrRef?: Ref<boolean> | AsyncComputedOptions,
 ): Ref<T | undefined>
 export function computedAsync<T>(
   evaluationCallback: (onCancel: AsyncComputedOnCancel) => T | Promise<T>,
