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parser: treat ? : same as ?: combined

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Ryan Chandler 2022-12-10 17:12:23 +00:00
parent 4076aeea85
commit 7e66e812d9
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1 changed files with 7 additions and 2 deletions
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9
src/parser/expressions.rs
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@ -93,12 +93,17 @@ fn for_precedence(state: &mut State, precedence: Precedence) -> ParseResult<Expr
match kind { match kind {
TokenKind::Question => { TokenKind::Question => {
let then = lowest_precedence(state)?; let then = if state.current.kind == TokenKind::Colon {
None
} else {
Some(Box::new(lowest_precedence(state)?))
};
utils::skip_colon(state)?; utils::skip_colon(state)?;
let otherwise = for_precedence(state, rpred)?; let otherwise = for_precedence(state, rpred)?;
left = Expression::Ternary { left = Expression::Ternary {
condition: Box::new(left), condition: Box::new(left),
then: Some(Box::new(then)), then,
r#else: Box::new(otherwise), r#else: Box::new(otherwise),
} }
} }