rust-clippy/tests/ui/single_char_pattern.rs
flip1995 d866f31678
rustup rust-lang/rust#52994
s/trim_left/trim_start/

s/trim_right/trim_end/
2018-12-14 12:35:44 +01:00

59 lines
1.7 KiB
Rust
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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.

// Copyright 2014-2018 The Rust Project Developers. See the COPYRIGHT
// file at the top-level directory of this distribution.
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.
use std::collections::HashSet;
fn main() {
let x = "foo";
x.split("x");
x.split("xx");
x.split('x');
let y = "x";
x.split(y);
// Not yet testing for multi-byte characters
// Changing `r.len() == 1` to `r.chars().count() == 1` in `lint_clippy::single_char_pattern`
// should have done this but produced an ICE
//
// We may not want to suggest changing these anyway
// See: https://github.com/rust-lang/rust-clippy/issues/650#issuecomment-184328984
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");
// Make sure we escape characters correctly.
x.split("\n");
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);
}