src/test/ui/anonymous-higher-ranked-lifetime.rs

   1 // Copyright 2015 The Rust Project Developers. See the COPYRIGHT
   2 // file at the top-level directory of this distribution and at
   3 // http://rust-lang.org/COPYRIGHT.
   4 //
   5 // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
   6 // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
   7 // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
   8 // option. This file may not be copied, modified, or distributed
   9 // except according to those terms.
  10
  11 fn main() {
  12     f1(|_: (), _: ()| {});
  13     f2(|_: (), _: ()| {});
  14     f3(|_: (), _: ()| {});
  15     f4(|_: (), _: ()| {});
  16     f5(|_: (), _: ()| {});
  17     g1(|_: (), _: ()| {});
  18     g2(|_: (), _: ()| {});
  19     g3(|_: (), _: ()| {});
  20     g4(|_: (), _: ()| {});
  21     h1(|_: (), _: (), _: (), _: ()| {});
  22     h2(|_: (), _: (), _: (), _: ()| {});
  23 }
  24
  25 // Basic
  26 fn f1<F>(_: F) where F: Fn(&(), &()) {}
  27 fn f2<F>(_: F) where F: for<'a> Fn(&'a (), &()) {}
  28 fn f3<'a, F>(_: F) where F: Fn(&'a (), &()) {}
  29 fn f4<F>(_: F) where F: for<'r> Fn(&(), &'r ()) {}
  30 fn f5<F>(_: F) where F: for<'r> Fn(&'r (), &'r ()) {}
  31
  32 // Nested
  33 fn g1<F>(_: F) where F: Fn(&(), Box<Fn(&())>) {}
  34 fn g2<F>(_: F) where F: Fn(&(), fn(&())) {}
  35 fn g3<F>(_: F) where F: for<'s> Fn(&'s (), Box<Fn(&())>) {}
  36 fn g4<F>(_: F) where F: Fn(&(), for<'r> fn(&'r ())) {}
  37
  38 // Mixed
  39 fn h1<F>(_: F) where F: Fn(&(), Box<Fn(&())>, &(), fn(&(), &())) {}
  40 fn h2<F>(_: F) where F: for<'t0> Fn(&(), Box<Fn(&())>, &'t0 (), fn(&(), &())) {}