From: Owen Avery <powerboat9.gamer@gmail.com>
Date: Fri, 7 Apr 2023 20:47:54 +0000 (-0400)
Subject: gccrs: Handle underscore in MacroMatch.
X-Git-Tag: basepoints/gcc-15~2666
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=cd73752ad6df6dde49323e0d5facb87dce70fff1;p=thirdparty%2Fgcc.git

gccrs: Handle underscore in MacroMatch.

gcc/rust/ChangeLog:

	* parse/rust-parse-impl.h
	(Parser::parse_macro_match): Handle underscore.

gcc/testsuite/ChangeLog:

	* rust/compile/macro51.rs: New test.
---

diff --git a/gcc/rust/parse/rust-parse-impl.h b/gcc/rust/parse/rust-parse-impl.h
index 67c4f6a3fabd..c48c71f6ca33 100644
--- a/gcc/rust/parse/rust-parse-impl.h
+++ b/gcc/rust/parse/rust-parse-impl.h
@@ -2081,6 +2081,7 @@ Parser<ManagedTokenSource>::parse_macro_match ()
 	  case WHILE:
 	  case YIELD:
 	  case IDENTIFIER:
+	  case UNDERSCORE:
 	    // macro fragment
 	    return parse_macro_match_fragment ();
 	  case LEFT_PAREN:
diff --git a/gcc/testsuite/rust/compile/macro51.rs b/gcc/testsuite/rust/compile/macro51.rs
new file mode 100644
index 000000000000..6659486d2682
--- /dev/null
+++ b/gcc/testsuite/rust/compile/macro51.rs
@@ -0,0 +1,3 @@
+macro_rules! test {
+    ($_:ident) => {""}
+}