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rust-clippy/tests/ui/string_extend.rs

35 lines
623 B
Rust

//@run-rustfix
#[derive(Copy, Clone)]
struct HasChars;
impl HasChars {
fn chars(self) -> std::str::Chars<'static> {
"HasChars".chars()
}
}
fn main() {
let abc = "abc";
let def = String::from("def");
let mut s = String::new();
s.push_str(abc);
s.extend(abc.chars());
s.push_str("abc");
s.extend("abc".chars());
s.push_str(&def);
s.extend(def.chars());
s.extend(abc.chars().skip(1));
s.extend("abc".chars().skip(1));
s.extend(['a', 'b', 'c'].iter());
let f = HasChars;
s.extend(f.chars());
// issue #9735
s.extend(abc[0..2].chars());
}