From 8d62576a9b47922ce58ac757e6e4944d45b223a6 Mon Sep 17 00:00:00 2001
From: Edwin Cheng <edwin0cheng@gmail.com>
Date: Sun, 10 Jan 2021 20:52:46 +0800
Subject: Fixed expr meta var after path colons in mbe

---
 crates/mbe/src/tests.rs | 23 ++++++++++++++++++++++-
 1 file changed, 22 insertions(+), 1 deletion(-)

(limited to 'crates/mbe/src')

diff --git a/crates/mbe/src/tests.rs b/crates/mbe/src/tests.rs
index d854985c5..17ddd0a9c 100644
--- a/crates/mbe/src/tests.rs
+++ b/crates/mbe/src/tests.rs
@@ -1,7 +1,11 @@
 use std::fmt::Write;
 
 use ::parser::FragmentKind;
-use syntax::{ast, AstNode, NodeOrToken, SyntaxKind::IDENT, SyntaxNode, WalkEvent, T};
+use syntax::{
+    ast, AstNode, NodeOrToken,
+    SyntaxKind::{ERROR, IDENT},
+    SyntaxNode, WalkEvent, T,
+};
 use test_utils::assert_eq_text;
 
 use super::*;
@@ -1194,6 +1198,23 @@ macro_rules! foo {
     );
 }
 
+#[test]
+fn test_expr_after_path_colons() {
+    assert!(parse_macro(
+        r#"
+macro_rules! m {
+    ($k:expr) => {
+            f(K::$k);
+       }
+}
+"#,
+    )
+    .expand_statements(r#"m!(C("0"))"#)
+    .descendants()
+    .find(|token| token.kind() == ERROR)
+    .is_some());
+}
+
 // The following tests are based on real world situations
 #[test]
 fn test_vec() {
-- 
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