Fix a read-before-init bug in lexer.c.

One of the branches in the lexer tested ls->last without checking ls->cc first.

1 files changed, 1 insertions, 1 deletions

diff --git a/src/lexer.c b/src/lexer.c
index 5610519..540160a 100644
--- a/src/lexer.c
+++ b/src/lexer.c
@@ -94,7 +94,7 @@ static int read_buffer(lexer_state_t *ls)
 				ls->in_token = false;
 				ret_token = true;
 			}
-		} else if (*ls->buf_c == '/' && ls->last == '/') {
+		} else if (*ls->buf_c == '/' && (ls->cc && ls->last == '/')) {
 			ls->in_comment = true;
 			ls->in_token = false;