trilogy-parser/src/token_pattern.rs at main

Actually just three programming languages in a trenchcoat

trilogy / trilogy-parser / src / token_pattern.rs

at main 19 lines 513 B view raw

wrap content

 1use trilogy_scanner::{Token, TokenType};
 2
 3/// Trait that describes a pattern that can be used to match certain
 4/// tokens, similar to [std::str::Pattern][].
 5pub(crate) trait TokenPattern {
 6    fn matches(&self, token: &Token) -> bool;
 7}
 8
 9impl TokenPattern for TokenType {
10    fn matches(&self, token: &Token) -> bool {
11        token.token_type == *self
12    }
13}
14
15impl<const N: usize> TokenPattern for [TokenType; N] {
16    fn matches(&self, token: &Token) -> bool {
17        self.contains(&token.token_type)
18    }
19}