@3fv/guard/src/applyTypeGuardExtras.ts

TypeScript guard suite

import type { TypeGuard, TypeGuardExtras } from "./guards"

export function applyTypeGuardExtras<T>(fn:TypeGuard<T>):TypeGuardExtras<T> {
  (
    fn as TypeGuardExtras<T>
  ).lift = (o:any) => () => fn(o)
  return fn as TypeGuardExtras<T>
}