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[Bug #20389] Chilled string cannot be a shared root

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This commit is contained in:
Nobuyoshi Nakada 2024-03-25 09:24:21 +09:00
parent 95864a6e35
commit fdd7ffb70c
2 changed files with 13 additions and 1 deletions
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2
string.c
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@ -1340,7 +1340,7 @@ rb_str_new_shared(VALUE str)
VALUE VALUE
rb_str_new_frozen(VALUE orig) rb_str_new_frozen(VALUE orig)
{ {
if (OBJ_FROZEN(orig)) return orig; if (RB_FL_TEST_RAW(orig, FL_FREEZE | STR_CHILLED) == FL_FREEZE) return orig;
return str_new_frozen(rb_obj_class(orig), orig); return str_new_frozen(rb_obj_class(orig), orig);
} }

12
test/ruby/test_string.rb
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@ -3648,6 +3648,18 @@ CODE
Warning[:deprecated] = deprecated Warning[:deprecated] = deprecated
end end
def test_chilled_string_substring
deprecated = Warning[:deprecated]
Warning[:deprecated] = false
chilled_string = eval('"a chilled string."')
substring = chilled_string[0..-1]
assert_equal("a chilled string.", substring)
chilled_string[0..-1] = "This string is defrosted."
assert_equal("a chilled string.", substring)
ensure
Warning[:deprecated] = deprecated
end
private private
def assert_bytesplice_result(expected, s, *args) def assert_bytesplice_result(expected, s, *args)