From d59109e8fffa1d0b03234329e12f5d3e578804e8 Mon Sep 17 00:00:00 2001
From: Laurenz <laurmaedje@gmail.com>
Date: Tue, 3 May 2022 15:58:15 +0200
Subject: Support recursive show rules

---
 src/parse/mod.rs | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

(limited to 'src/parse')

diff --git a/src/parse/mod.rs b/src/parse/mod.rs
index 32d61885..9f4860e7 100644
--- a/src/parse/mod.rs
+++ b/src/parse/mod.rs
@@ -807,9 +807,15 @@ fn set_expr(p: &mut Parser) -> ParseResult {
 fn show_expr(p: &mut Parser) -> ParseResult {
     p.perform(NodeKind::ShowExpr, |p| {
         p.assert(NodeKind::Show);
-        ident(p)?;
-        p.expect(NodeKind::Colon)?;
-        ident(p)?;
+        let marker = p.marker();
+        expr(p)?;
+        if p.eat_if(NodeKind::Colon) {
+            marker.filter_children(p, |child| match child.kind() {
+                NodeKind::Ident(_) | NodeKind::Colon => Ok(()),
+                _ => Err("expected identifier"),
+            });
+            expr(p)?;
+        }
         p.expect(NodeKind::As)?;
         expr(p)
     })
-- 
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