rust/tests/ui/single_char_pattern.rs
Marcel Hellwig c080899848 add strip_{prefix,suffix} to PATTERN_METHODS
this will warn, if a single_char_pattern is used in one of the above
methods
2021-05-03 16:18:41 +02:00

59 lines
1.2 KiB
Rust
Raw Blame History

This file contains ambiguous Unicode characters

This file contains Unicode characters that might be confused with other characters. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

// run-rustfix
#![allow(unused_must_use)]
use std::collections::HashSet;
fn main() {
let x = "foo";
x.split("x");
x.split("xx");
x.split('x');
let y = "x";
x.split(y);
x.split("ß");
x.split("");
x.split("💣");
// Can't use this lint for unicode code points which don't fit in a char
x.split("❤️");
x.contains("x");
x.starts_with("x");
x.ends_with("x");
x.find("x");
x.rfind("x");
x.rsplit("x");
x.split_terminator("x");
x.rsplit_terminator("x");
x.splitn(0, "x");
x.rsplitn(0, "x");
x.matches("x");
x.rmatches("x");
x.match_indices("x");
x.rmatch_indices("x");
x.trim_start_matches("x");
x.trim_end_matches("x");
x.strip_prefix("x");
x.strip_suffix("x");
// Make sure we escape characters correctly.
x.split("\n");
x.split("'");
x.split("\'");
let h = HashSet::<String>::new();
h.contains("X"); // should not warn
x.replace(";", ",").split(","); // issue #2978
x.starts_with("\x03"); // issue #2996
// Issue #3204
const S: &str = "#";
x.find(S);
// Raw string
x.split(r"a");
x.split(r#"a"#);
x.split(r###"a"###);
x.split(r###"'"###);
x.split(r###"#"###);
}