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#![warn(clippy::manual_strip)]
fn main() {
let s = "abc";
if s.starts_with("ab") {
str::to_string(&s["ab".len()..]);
s["ab".len()..].to_string();
str::to_string(&s[2..]);
s[2..].to_string();
}
if s.ends_with("bc") {
str::to_string(&s[..s.len() - "bc".len()]);
s[..s.len() - "bc".len()].to_string();
str::to_string(&s[..s.len() - 2]);
s[..s.len() - 2].to_string();
}
// Character patterns
if s.starts_with('a') {
str::to_string(&s[1..]);
s[1..].to_string();
}
// Variable prefix
let prefix = "ab";
if s.starts_with(prefix) {
str::to_string(&s[prefix.len()..]);
}
// Constant prefix
const PREFIX: &str = "ab";
if s.starts_with(PREFIX) {
str::to_string(&s[PREFIX.len()..]);
str::to_string(&s[2..]);
}
// Constant target
const TARGET: &str = "abc";
if TARGET.starts_with(prefix) {
str::to_string(&TARGET[prefix.len()..]);
}
// String target - not mutated.
let s1: String = "abc".into();
if s1.starts_with("ab") {
s1[2..].to_uppercase();
}
// String target - mutated. (Don't lint.)
let mut s2: String = "abc".into();
if s2.starts_with("ab") {
s2.push('d');
s2[2..].to_uppercase();
}
// Target not stripped. (Don't lint.)
let s3 = String::from("abcd");
let s4 = String::from("efgh");
if s3.starts_with("ab") {
s4[2..].to_string();
}
}
#[clippy::msrv = "1.44"]
fn msrv_1_44() {
let s = "abc";
if s.starts_with('a') {
s[1..].to_string();
}
}
#[clippy::msrv = "1.45"]
fn msrv_1_45() {
let s = "abc";
if s.starts_with('a') {
s[1..].to_string();
}
}
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