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// check-pass
#![allow(dead_code)]
// pretty-expanded FIXME #23616
use std::fs::File;
use std::io::{self, BufReader, Read};
struct Lexer<R: Read>
{
reader: BufReader<R>,
}
impl<R: Read> Lexer<R>
{
pub fn new_from_reader(r: R) -> Lexer<R>
{
Lexer{reader: BufReader::new(r)}
}
pub fn new_from_file(p: &str) -> io::Result<Lexer<File>>
{
Ok(Lexer::new_from_reader(File::open(p)?))
}
pub fn new_from_str<'a>(s: &'a str) -> Lexer<&'a [u8]>
{
Lexer::new_from_reader(s.as_bytes())
}
}
fn main() {}
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