From 1f5a7f2f4970144164232a2bc45f561de5d65c33 Mon Sep 17 00:00:00 2001 From: "Yukihiro \"Matz\" Matsumoto" Date: Fri, 4 Oct 2019 16:02:50 +0900 Subject: Freeze strings from `nil.to_s`, `true.to_s`, `false.to_s`. This is an experimental changes in Ruby 2.7. --- src/object.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) (limited to 'src/object.c') diff --git a/src/object.c b/src/object.c index 0b83c97a3..4e2ba7154 100644 --- a/src/object.c +++ b/src/object.c @@ -83,13 +83,13 @@ mrb_true(mrb_state *mrb, mrb_value obj) static mrb_value nil_to_s(mrb_state *mrb, mrb_value obj) { - return mrb_str_new(mrb, 0, 0); + return mrb_str_new_frozen(mrb, 0, 0); } static mrb_value nil_inspect(mrb_state *mrb, mrb_value obj) { - return mrb_str_new_lit(mrb, "nil"); + return mrb_str_new_lit_frozen(mrb, "nil"); } /*********************************************************************** @@ -150,7 +150,7 @@ true_xor(mrb_state *mrb, mrb_value obj) static mrb_value true_to_s(mrb_state *mrb, mrb_value obj) { - return mrb_str_new_lit(mrb, "true"); + return mrb_str_new_lit_frozen(mrb, "true"); } /* 15.2.5.3.4 */ @@ -257,7 +257,7 @@ false_or(mrb_state *mrb, mrb_value obj) static mrb_value false_to_s(mrb_state *mrb, mrb_value obj) { - return mrb_str_new_lit(mrb, "false"); + return mrb_str_new_lit_frozen(mrb, "false"); } void -- cgit v1.2.3