Function mergeProxy

packages/vue-table/src/merge-proxy.ts:57–81

(...sources: any)

export function mergeProxy<T extends any[]>(...sources: T): MergeProxy<T>
export function mergeProxy(...sources: any): any {
  return new Proxy(
    {
      get(property: string | number | symbol) {
        for (let i = sources.length - 1; i >= 0; i--) {
          const v = resolveSource(sources[i])[property]
          if (v !== undefined) return v
        }
      },
      has(property: string | number | symbol) {
        for (let i = sources.length - 1; i >= 0; i--) {
          if (property in resolveSource(sources[i])) return true
        }
        return false
      },
      keys() {
        const keys = []
        for (let i = 0; i < sources.length; i++)
          keys.push(...Object.keys(resolveSource(sources[i])))
        return [...Array.from(new Set(keys))]
      },
    },
    propTraps,
  )
}