Copy `rb_compile_option_t` only if needed

Use `COMPILE_OPTION_DEFAULT` if nothing to change.

1 files changed, 8 insertions, 17 deletions

diff --git a/iseq.c b/iseq.c
index 7d64177e99..3b91317d33 100644
--- a/iseq.c
+++ b/iseq.c
@@ -916,13 +916,12 @@ rb_iseq_new_with_opt(const rb_ast_body_t *ast, VALUE name, VALUE path, VALUE rea
     rb_iseq_t *iseq = iseq_alloc();
     rb_compile_option_t new_opt;
 
-    if (option) {
+    if (!option) option = &COMPILE_OPTION_DEFAULT;
+    if (ast) {
         new_opt = *option;
+        rb_iseq_make_compile_option(&new_opt, make_compile_option_from_ast(ast));
+        option = &new_opt;
     }
-    else {
-        new_opt = COMPILE_OPTION_DEFAULT;
-    }
-    if (ast) rb_iseq_make_compile_option(&new_opt, make_compile_option_from_ast(ast));
 
     VALUE script_lines = Qnil;
 
@@ -934,7 +933,7 @@ rb_iseq_new_with_opt(const rb_ast_body_t *ast, VALUE name, VALUE path, VALUE rea
     }
 
     prepare_iseq_build(iseq, name, path, realpath, first_lineno, node ? &node->nd_loc : NULL, node ? nd_node_id(node) : -1,
-                       parent, isolated_depth, type, script_lines, &new_opt);
+                       parent, isolated_depth, type, script_lines, option);
 
     rb_iseq_compile_node(iseq, node);
     finish_iseq_build(iseq);
@@ -950,19 +949,11 @@ yp_iseq_new_with_opt(yp_node_t *node, yp_parser_t *parser, VALUE name, VALUE pat
                      enum rb_iseq_type type, const rb_compile_option_t *option)
 {
     rb_iseq_t *iseq = iseq_alloc();
-    rb_compile_option_t new_opt;
-
-    if (option) {
-        new_opt = *option;
-    }
-    else {
-        new_opt = COMPILE_OPTION_DEFAULT;
-    }
-
     VALUE script_lines = Qnil;
-
     rb_code_location_t code_loc;
 
+    if (!option) option = &COMPILE_OPTION_DEFAULT;
+
     if (node) {
         yp_line_column_t start_line_col = yp_newline_list_line_column(&(parser->newline_list), node->location.start);
         yp_line_column_t end_line_col= yp_newline_list_line_column(&(parser->newline_list), node->location.end);
@@ -981,7 +972,7 @@ yp_iseq_new_with_opt(yp_node_t *node, yp_parser_t *parser, VALUE name, VALUE pat
     // TODO: node_id
     int node_id = -1;
     prepare_iseq_build(iseq, name, path, realpath, first_lineno, &code_loc, node_id,
-            parent, isolated_depth, type, script_lines, &new_opt);
+            parent, isolated_depth, type, script_lines, option);
 
     rb_iseq_compile_yarp_node(iseq, node, parser);