eldridge.cam
Actually just three programming languages in a trenchcoat
1use super::*;
2use crate::Parser;
3use trilogy_scanner::TokenType::*;
4
5#[derive(Clone, Debug, Spanned, PrettyPrintSExpr)]
6pub enum Handler {
7 When(Box<WhenHandler>),
8 Else(Box<ElseHandler>),
9}
10
11impl Handler {
12 pub(crate) fn parse(parser: &mut Parser) -> SyntaxResult<Self> {
13 match parser.peek().token_type {
14 KwWhen => Ok(Self::When(Box::new(WhenHandler::parse(parser)?))),
15 KwElse => Ok(Self::Else(Box::new(ElseHandler::parse(parser)?))),
16 _ => unreachable!("Caller should have checked the first token"),
17 }
18 }
19}
20
21#[cfg(test)]
22mod test {
23 use super::*;
24
25 test_parse!(handler_when: "when 'NAN resume 5" => Handler::parse => "(Handler::When (WhenHandler _ _ _ _))");
26 test_parse!(handler_else: "else n resume 5" => Handler::parse => "(Handler::Else (ElseHandler _ _ _))");
27}