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types(reactivity): optimize the display type of ref #12005

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types(reactivity): optimize the display type of ref #12005

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perf(ref): optimize the display type of ref
yangliguo7 Sep 23, 2024
dafd7dd
Merge branch 'main' into pref-ref-type
edison1105 Mar 19, 2025
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4 changes: 3 additions & 1 deletion packages/reactivity/src/ref.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -45,6 +45,8 @@ export function isRef(r: any): r is Ref {
return r ? r[ReactiveFlags.IS_REF] === true : false
}

export type TypeRef<T> = Ref<UnwrapRef<T>, UnwrapRef<T> | T>

/**
* Takes an inner value and returns a reactive and mutable ref object, which
* has a single property `.value` that points to the inner value.
Expand All @@ -54,7 +56,7 @@ export function isRef(r: any): r is Ref {
*/
export function ref<T>(
value: T,
): [T] extends [Ref] ? IfAny<T, Ref<T>, T> : Ref<UnwrapRef<T>, UnwrapRef<T> | T>
): [T] extends [Ref] ? IfAny<T, Ref<T>, T> : TypeRef<T>
export function ref<T = any>(): Ref<T | undefined>
export function ref(value?: unknown) {
return createRef(value, false)
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