src/test/mir-opt/nll/named-lifetimes-basic.rs

   1 // Copyright 2012-2016 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 // Basic test for named lifetime translation. Check that we
  12 // instantiate the types that appear in function arguments with
  13 // suitable variables and that we setup the outlives relationship
  14 // between R0 and R1 properly.
  15
  16 // compile-flags:-Znll -Zverbose
  17 //                     ^^^^^^^^^ force compiler to dump more region information
  18 // ignore-tidy-linelength
  19
  20 #![allow(warnings)]
  21
  22 fn use_x<'a, 'b: 'a, 'c>(w: &'a mut i32, x: &'b u32, y: &'a u32, z: &'c u32) -> bool { true }
  23
  24 fn main() {
  25 }
  26
  27 // END RUST SOURCE
  28 // START rustc.use_x.nll.0.mir
  29 // | '_#0r: {bb0[0], bb0[1], '_#0r, '_#1r, '_#2r, '_#3r}
  30 // | '_#1r: {bb0[0], bb0[1], '_#1r}
  31 // | '_#2r: {bb0[0], bb0[1], '_#1r, '_#2r}
  32 // | '_#3r: {bb0[0], bb0[1], '_#3r}
  33 // fn use_x(_1: &'_#1r mut i32, _2: &'_#2r u32, _3: &'_#1r u32, _4: &'_#3r u32) -> bool {
  34 // END rustc.use_x.nll.0.mir