Interface Array

packages/effect-app/src/builtin.ts:25–34

  // above) so a source-linked consumer can disable them in linked mode.

  interface Array<T> {
    // Conditional return instead of a `this`-typed overload: a `this` overload
    // is selected-then-rejected on union-of-array receivers (TS2684), poisoning
    // foreign code like `(readonly A[] | readonly B[]).map(...)`. A single
    // conditional-return signature refines NonEmpty without a `this` param.
    map<U>(
      callbackfn: (value: T, index: number, array: T[]) => U,
      thisArg?: any
    ): this extends NonEmptyArray<any> ? NonEmptyArray<U> : U[]
  }
  interface ReadonlyArray<T> {
    // Subsequent property declarations must have the same type.  Property 'length' must be of type 'number', but here has type 'NonNegativeInt'.
    // readonly length: NonNegativeInt