mirror of
https://github.com/rust-lang/rust-clippy
synced 2024-09-21 07:01:54 +00:00
67 lines
1.8 KiB
Rust
67 lines
1.8 KiB
Rust
#![feature(plugin)]
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#![plugin(clippy)]
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#![allow(unused)]
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#![deny(invalid_regex, trivial_regex)]
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extern crate regex;
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use regex::Regex;
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const OPENING_PAREN : &'static str = "(";
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const NOT_A_REAL_REGEX : &'static str = "foobar";
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fn syntax_error() {
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let pipe_in_wrong_position = Regex::new("|");
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//~^ERROR: regex syntax error: empty alternate
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let wrong_char_ranice = Regex::new("[z-a]");
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//~^ERROR: regex syntax error: invalid character class range
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let some_regex = Regex::new(OPENING_PAREN);
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//~^ERROR: regex syntax error on position 0: unclosed
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let closing_paren = ")";
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let not_linted = Regex::new(closing_paren);
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}
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fn trivial_regex() {
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let trivial_eq = Regex::new("^foobar$");
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//~^ERROR: trivial regex
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//~|HELP consider using `==` on `str`s
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let trivial_starts_with = Regex::new("^foobar");
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//~^ERROR: trivial regex
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//~|HELP consider using `str::starts_with`
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let trivial_ends_with = Regex::new("foobar$");
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//~^ERROR: trivial regex
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//~|HELP consider using `str::ends_with`
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let trivial_contains = Regex::new("foobar");
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//~^ERROR: trivial regex
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//~|HELP consider using `str::contains`
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let trivial_contains = Regex::new(NOT_A_REAL_REGEX);
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//~^ERROR: trivial regex
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//~|HELP consider using `str::contains`
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// unlikely corner cases
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let trivial_empty = Regex::new("");
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//~^ERROR: trivial regex
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//~|HELP the regex is unlikely to be useful
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let trivial_empty = Regex::new("^$");
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//~^ERROR: trivial regex
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//~|HELP consider using `str::is_empty`
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// non-trivial regexes
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let non_trivial_eq = Regex::new("^foo|bar$");
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let non_trivial_starts_with = Regex::new("^foo|bar");
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let non_trivial_ends_with = Regex::new("^foo|bar");
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let non_trivial_ends_with = Regex::new("foo|bar");
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}
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fn main() {
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syntax_error();
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trivial_regex();
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}
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