[ruby/yarp] Do not leak memory from lex modes

ruby/prism@df6661740c
ruby · Jun 22, 2023 · b879528 · b879528
1 parent edd4881
commit b879528
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/yarp/yarp.c b/yarp/yarp.c
@@ -12841,6 +12841,10 @@ yp_parser_free(yp_parser_t *parser) {
     yp_comment_list_free(&parser->comment_list);
     yp_constant_pool_free(&parser->constant_pool);
     yp_newline_list_free(&parser->newline_list);
+
+    while (parser->lex_modes.index >= YP_LEX_STACK_SIZE) {
+        lex_mode_pop(parser);
+    }
 }
 
 // Parse the Ruby source associated with the given parser and return the tree.