import type { DeepPath , FnO , OptPathVal , Path , Path0 , Path1 , Path2 , Path3 , Path4 , Path5 , Path6 , Path7 , Path8 , PathVal , } from "@thi.ng/api" ; import type { UpdateFn } from "./api.js" ; import { defGetter } from "./getter.js" ; import { defSetter } from "./setter.js" ; /**
 * Similar to  defSetterUnsafe , returns a function to update
 * values at given `path` using provided update `fn`. Paths and the
 * arguments given to the returned function are NOT type checked.
 *
 *  remarks example param path param fn export const defUpdaterUnsafe = < T = any > ( path , fn ) : FnO < T , any > => defUpdater ( < any > path , fn ) ; /**
 * Type checked version of  defUpdaterUnsafe . Only the first 8
 * path levels are type checked.
 *
 *  param path param fn export function defUpdater < T > ( path , fn ) ; export function defUpdater < T , A > ( path , fn ) ; export function defUpdater < T , A , B > ( path , fn ) ; export function defUpdater < T , A , B , C > ( path , fn ) ; export function defUpdater < T , A , B , C , D > ( path , fn ) ; export function defUpdater < T , A , B , C , D , E > ( path , fn ) ; export function defUpdater < T , A , B , C , D , E , F > ( path , fn ) ; export function defUpdater < T , A , B , C , D , E , F , G > ( path , fn ) ; export function defUpdater < T , A , B , C , D , E , F , G , H > ( path , fn ) ; export function defUpdater < T , A , B , C , D , E , F , G , H > ( path , fn ) ; export function defUpdater ( path , fn ) { const g = defGetter ( < any > path ) ; const s = defSetter ( < any > path ) ; return ( state , ... args ) => s ( state , fn . apply ( null , < any > ( args . unshift ( g ( state ) ) , args ) ) ) ; }