rust/src/test/compile-fail/writing-through-read-alias.rs

// -*- rust -*-

// error-pattern: writing to immutable type

type point = rec(int x, int y, int z);

fn f(&point p) {
  p.x = 13;
}

fn main() {
  let point x = rec(x=10, y=11, z=12);
  f(x);
}