src/test/run-pass/shadow.rs

   1 // Copyright 2012 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 foo(c: Vec<isize> ) {
  12     let a: isize = 5;
  13     let mut b: Vec<isize> = Vec::new();
  14
  15
  16     match t::none::<isize> {
  17         t::some::<isize>(_) => {
  18             for _i in &c {
  19                 println!("{}", a);
  20                 let a = 17;
  21                 b.push(a);
  22             }
  23         }
  24         _ => { }
  25     }
  26 }
  27
  28 enum t<T> { none, some(T), }
  29
  30 pub fn main() { let x = 10; let x = x + 20; assert_eq!(x, 30); foo(Vec::new()); }