From 40ea7598ae313f1e75b600822a55fa748dafc676 Mon Sep 17 00:00:00 2001
From: fef <owo@fef.moe>
Date: Wed, 27 Jul 2022 19:59:18 +0200
Subject: [PATCH] ast: support parenthesized subexpressions

---
 src/ast/mod.rs | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/ast/mod.rs b/src/ast/mod.rs
index bb57460..0c43e0c 100644
--- a/src/ast/mod.rs
+++ b/src/ast/mod.rs
@@ -248,6 +248,10 @@ impl Parser {
     fn parse_primary_expr(&mut self) -> Result<tree::Node, Error> {
         let token = self.lexer.require_next()?;
         match token.kind {
+            token::Kind::OParen => {
+                let expr = self.parse_binary_expr_or_higher(&[token::Kind::CParen])?;
+                self.parse_primary_expr_rest(expr)
+            },
             token::Kind::Ident => {
                 let ident = tree::Node::Ident(String::from(token.raw));
                 self.parse_primary_expr_rest(ident)