Type Alias unstable_Matcher<narrowedOrFn, input, pattern>`Experimental`

unstable_Matcher: ReturnType<
CustomP<input, pattern, narrowedOrFn>[Pattern.matcher],
>

A Matcher is an object with match function, which defines how this object should be matched by TS-Pattern.

This feature is unstable.

Type Parameters

narrowedOrFn
input = unknown
pattern = never

Example

class Some<T> implements P.unstable_Matchable {
 [P.matcher](): P.unstable_Matcher<Some<T>>
}