From e77c44ef26fdf7e66fd7129a3aa9240840344694 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Marc=20Poulhi=C3=A8s?= <dkm@kataplop.net>
Date: Tue, 23 Mar 2021 22:03:55 +0100
Subject: Fix error while unexpected EOF when scanning for end of comment

Emit an error when EOF is reached before end of C-style comment.
Add corresponding test for non regression.

fix #300
---
 gcc/rust/lex/rust-lex.cc | 8 ++++++++
 1 file changed, 8 insertions(+)

(limited to 'gcc/rust')

diff --git a/gcc/rust/lex/rust-lex.cc b/gcc/rust/lex/rust-lex.cc
index 6dfaea2..26745e4 100644
--- a/gcc/rust/lex/rust-lex.cc
+++ b/gcc/rust/lex/rust-lex.cc
@@ -427,6 +427,14 @@ Lexer::build_token ()
 		  current_column++; // for error-handling
 		  current_char = peek_input ();
 
+		  if (current_char == EOF)
+		    {
+		      rust_error_at (
+			loc, "unexpected EOF while looking for end of comment",
+			current_char);
+		      break;
+		    }
+
 		  // if /* found
 		  if (current_char == '/' && peek_input (1) == '*')
 		    {
-- 
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