don't crash on empty token list

2 files changed, 7 insertions, 4 deletions

diff --git a/main.c b/main.c
index cd64d09..30bd58e 100644
--- a/main.c
+++ b/main.c
@@ -32,10 +32,12 @@ main(int argc, char **argv)
 	fclose(file);
 
 	Token *tokens = lexer(slice);
-	destroy_duplicates(&tokens, TOK_END);
-	group_scope(&tokens);
-	token_print(tokens, 1, 0);
-	token_destroy(tokens);
+	if (tokens != NULL) {
+		destroy_duplicates(&tokens, TOK_END);
+		group_scope(&tokens);
+		token_print(tokens, 1, 0);
+		token_destroy(tokens);
+	}
 
 	if (slice.str != NULL)
 		free(slice.str);
diff --git a/test.sh b/test.sh
index 081f056..f53f967 100755
--- a/test.sh
+++ b/test.sh
@@ -1,3 +1,4 @@
 #!/bin/sh
 ./build.sh || exit 1
+./golem /dev/null || exit 1
 valgrind ./golem mvp.golem || exit 1