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parser: fall back to prefix inc/dec on postfix error

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This commit is contained in:
Guillem L. Jara
2026-05-15 16:37:56 +02:00
parent e35185be81
commit 281fc2ba8a
1 changed files with 10 additions and 3 deletions
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parser/src/pratt.rs
+10 -3
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@@ -74,9 +74,16 @@ impl<'a, 'b> Pratt<'a, 'b> {
if op.binding_power() < min_bp {
break;
}
lex.next();
let place = Place::lower_from(lhs.take(), lex.span())?;
Expr::node(op.expr(place), self.parser.arena)
match Place::lower_from(lhs.take(), lex.span()) {
Ok(place) => {
lex.next();
Expr::node(op.expr(place), self.parser.arena)
}
Err((lhs, _)) => Expr::node(
BinaryOperator::Concat.expr(lhs, self.parse_prefix(lex)?),
self.parser.arena,
),
}
} else if let Ok(op) = BinaryPlaceOperator::parse(next, &span) {
// Places consume assignment operators with maximum precedence;
// effectively ignoring the enclosing operator's precedence.