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Bug #15926 » str-uminus-freeze-fix-v2.patch

jeremyevans0 (Jeremy Evans), 06/19/2019 05:03 PM

View differences:

string.c
static VALUE
str_uminus(VALUE str)
{
if (!BARE_STRING_P(str) && !rb_obj_frozen_p(str)) {
str = rb_str_dup(str);
}
return rb_fstring(str);
}
test/ruby/test_string.rb
assert_same(str, -bar, "uminus deduplicates [Feature #13077]")
end
def test_uminus_no_freeze_not_bare
str = @cls.new("foo")
-str
assert_equal(false, str.frozen?)
str = @cls.new("foo")
str.instance_variable_set(:@iv, 1)
-str
assert_equal(false, str.frozen?)
str = @cls.new("foo")
str.taint
-str
assert_equal(false, str.frozen?)
end
def test_ord
assert_equal(97, "a".ord)
assert_equal(97, "abc".ord)
(2-2/2)