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pub type Span = (usize, usize);
#[derive(Debug, PartialEq, Clone)]
pub enum TokenKind {
Fn,
Let,
If,
Else,
While,
Return,
Break,
Continue,
True,
False,
Identifier(String),
String(String),
Number(f64),
Colon,
DoubleColon,
SemiColon,
Comma,
LeftParen,
RightParen,
LeftBrace,
RightBrace,
LeftBracket,
RightBracket,
Plus,
Minus,
Asterisk,
Slash,
Percent,
DoubleAsterisk,
Equals,
EqualsEquals,
NotEquals,
GreaterThan,
GreaterThanEquals,
LessThan,
LessThanEquals,
Eof,
}
#[derive(Debug, Clone)]
pub struct Token {
pub kind: TokenKind,
pub line: usize,
pub span: Span,
}
impl Token {
pub fn new(kind: TokenKind, line: usize, span: Span) -> Self {
Self { kind, line, span }
}
pub fn eof() -> Self {
Self {
kind: TokenKind::Eof,
line: 0,
span: (0, 0),
}
}
}
impl Default for Token {
fn default() -> Self {
Self {
kind: TokenKind::Eof,
line: 0,
span: (0, 0),
}
}
}