gccrs: ast: Fix match case comma output

Even though the comma may be optional with blocks of expressions, it is
mandatory for a single expression alone. By changing this behavior we
ensure a working behavior with any kind of expressions.

gcc/rust/ChangeLog:

	* ast/rust-ast-tokenstream.cc (TokenStream::visit): Make comma
	mandatory.

Signed-off-by: Pierre-Emmanuel Patry <pierre-emmanuel.patry@embecosm.com>

diff --git a/gcc/rust/ast/rust-ast-tokenstream.cc b/gcc/rust/ast/rust-ast-tokenstream.cc
index b9473091d19177be95891d1554ed44e070cf3e9d..b248aeedea3ea576b27599b37d5e438d219847e9 100644 (file)
--- a/gcc/rust/ast/rust-ast-tokenstream.cc
+++ b/gcc/rust/ast/rust-ast-tokenstream.cc
@@ -1509,7 +1509,7 @@ TokenStream::visit (MatchCase &match_case)
   visit (match_case.get_arm ());
   tokens.push_back (Rust::Token::make (MATCH_ARROW, Location ()));
   visit (match_case.get_expr ());
-  trailing_comma ();
+  tokens.push_back (Rust::Token::make (COMMA, Location ()));
 }
 
 void