tuple4<A, B, C, D> function

Parser<Tuple4<A, B, C, D>> tuple4<A, B, C, D>(Parser<A> a, Parser<B> b, Parser<C> c, Parser<D> d,)

A typed parser that parses a sequence of 4 values of different types.

Implementation

Parser<Tuple4<A, B, C, D>> tuple4<A, B, C, D>(
    Parser<A> a, Parser<B> b, Parser<C> c, Parser<D> d) {
  return chain([a, b, c, d]).map((r) {
    return Tuple4(
        r.value?[0] as A, r.value?[1] as B, r.value?[2] as C, r.value?[3] as D);
  });
}