src/test/ui/issue-46576.rs

   1 // Copyright 2017 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 // ignore-cloudabi no std::fs support
  12
  13 #![allow(dead_code)]
  14 #![deny(unused_imports)]
  15
  16 use std::fs::File;
  17 use std::io::{BufRead, BufReader, Read};
  18 //~^ ERROR unused import: `BufRead`
  19
  20 pub fn read_from_file(path: &str) {
  21     let file = File::open(&path).unwrap();
  22     let mut reader = BufReader::new(file);
  23     let mut s = String::new();
  24     reader.read_to_string(&mut s).unwrap();
  25 }
  26
  27 pub fn read_lines(s: &str) {
  28     for _line in s.lines() {
  29
  30     }
  31 }
  32
  33 fn main() {}