rust-clippy/tests/ui/collapsible_str_replace.rs
2023-08-11 14:02:28 +00:00

85 lines
2.5 KiB
Rust

#![allow(unused)]
#![warn(clippy::collapsible_str_replace)]
fn get_filter() -> char {
'u'
}
fn main() {
let d = 'd';
let p = 'p';
let s = 's';
let u = 'u';
let l = "l";
let mut iter = ["l", "z"].iter();
// LINT CASES
let _ = "hesuo worpd".replace('s', "l").replace('u', "l");
let _ = "hesuo worpd".replace('s', l).replace('u', l);
let _ = "hesuo worpd".replace('s', "l").replace('u', "l").replace('p', "l");
let _ = "hesuo worpd"
.replace('s', "l")
.replace('u', "l")
.replace('p', "l")
.replace('d', "l");
let _ = "hesuo world".replace(s, "l").replace('u', "l");
let _ = "hesuo worpd".replace(s, "l").replace('u', "l").replace('p', "l");
let _ = "hesuo worpd".replace(s, "l").replace(u, "l").replace('p', "l");
let _ = "hesuo worpd".replace(s, "l").replace(u, "l").replace(p, "l");
let _ = "hesuo worlp".replace('s', "l").replace('u', "l").replace('p', "d");
let _ = "hesuo worpd".replace('s', "x").replace('u', "l").replace('p', "l");
// Note: Future iterations could lint `replace(|c| matches!(c, "su" | 'd' | 'p'), "l")`
let _ = "hesudo worpd".replace("su", "l").replace('d', "l").replace('p', "l");
let _ = "hesudo worpd".replace(d, "l").replace('p', "l").replace("su", "l");
let _ = "hesuo world".replace(get_filter(), "l").replace('s', "l");
// NO LINT CASES
let _ = "hesuo world".replace('s', "l").replace('u', "p");
let _ = "hesuo worpd".replace('s', "l").replace('p', l);
let _ = "hesudo worpd".replace('d', "l").replace("su", "l").replace('p', "l");
// Note: Future iterations of `collapsible_str_replace` might lint this and combine to `[s, u, p]`
let _ = "hesuo worpd".replace([s, u], "l").replace([u, p], "l");
let _ = "hesuo worpd".replace(['s', 'u'], "l").replace(['u', 'p'], "l");
let _ = "hesuo worpd".replace('s', "l").replace(['u', 'p'], "l");
let _ = "hesuo worpd".replace(['s', 'u', 'p'], "l").replace('r', "l");
let _ = "hesuo worpd".replace(['s', 'u', 'p'], l).replace('r', l);
let _ = "hesuo worpd".replace(['s', u, 'p'], "l").replace('r', "l");
let _ = "hesuo worpd".replace([s, u], "l").replace(p, "l");
// Regression test
let _ = "hesuo worpd"
.replace('u', iter.next().unwrap())
.replace('s', iter.next().unwrap());
}
#[clippy::msrv = "1.57"]
fn msrv_1_57() {
let _ = "".replace('a', "1.57").replace('b', "1.57");
}
#[clippy::msrv = "1.58"]
fn msrv_1_58() {
let _ = "".replace('a', "1.58").replace('b', "1.58");
}