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some test

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This commit is contained in:
Natapat Samutpong 2022-03-06 23:02:54 +07:00
parent cf65687337
commit a42415a90a
2 changed files with 41 additions and 0 deletions
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21
crates/lexer/src/lib.rs
View file

@ -129,4 +129,25 @@ pub fn lexer() -> impl Parser<char, Vec<(Token, Span)>, Error = Simple<char>> {
pub fn lex(src: String) -> (Option<Vec<(Token, std::ops::Range<usize>)>>, Vec<Simple<char>>) {
let (tokens, lex_error) = lexer().parse_recovery(src.as_str());
return (tokens, lex_error);
}
#[cfg(test)]
mod tests {
use super::*;
#[test]
fn lex_let_simple() {
let (tokens, err) = lex("let x: Int = 1;".to_string());
assert_eq!(tokens, Some(vec![
(Token::KwLet, 0..3),
(Token::Identifier("x".to_string()), 4..5),
(Token::Colon, 5..6),
(Token::Identifier("Int".to_string()), 7..10),
(Token::Assign, 11..12),
(Token::Int(1), 13..14),
(Token::SemiColon, 14..15),
]));
assert_eq!(err, vec![]);
}
}

20
crates/parser/src/lib.rs
View file

@ -228,4 +228,24 @@ pub fn parse(tokens: Vec<(Token, std::ops::Range<usize>)>, len: usize) -> (Optio
));
return (ast, parse_error)
}
#[cfg(test)]
mod tests {
use super::*;
#[test]
fn parse_simple() {
let (_, err) = parse(vec![
(Token::KwLet, 0..3),
(Token::Identifier("x".to_string()), 4..5),
(Token::Colon, 5..6),
(Token::Identifier("Int".to_string()), 7..10),
(Token::Assign, 11..12),
(Token::Int(1), 13..14),
(Token::SemiColon, 14..15),
], 15);
assert_eq!(err, vec![]);
}
}