#![allow(non_camel_case_types)] | |
trait Parser<T> { | |
fn parse(text: &str) -> Option<T>; | |
} | |
impl<bool> Parser<bool> for bool { | |
fn parse(text: &str) -> Option<bool> { | |
Some(true) //~ ERROR mismatched types | |
} | |
} | |
fn main() { | |
println!("{}", bool::parse("ok").unwrap_or(false)); | |
} |