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Don't call + and < in Integer.times for !FIXNUM

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The methods aren't called for FIXNUM, and it's best to have
consistent behavior.

Fixes [Bug #18377]
This commit is contained in:
Jeremy Evans 2021-12-01 13:00:11 -08:00
parent e387458da9
commit fe1725236c
Notes: git 2021-12-02 09:22:12 +09:00 
Merged: https://github.com/ruby/ruby/pull/5199
2 changed files with 27 additions and 2 deletions
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4
numeric.c
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@ -5697,9 +5697,9 @@ int_dotimes(VALUE num)
VALUE i = INT2FIX(0);
for (;;) {
if (!RTEST(rb_funcall(i, '<', 1, num))) break;
if (!RTEST(int_le(i, num))) break;
rb_yield(i);
i = rb_funcall(i, '+', 1, INT2FIX(1));
i = rb_int_plus(i, INT2FIX(1));
}
}
return num;

25
test/ruby/test_integer.rb
View file

@ -299,6 +299,31 @@ class TestInteger < Test::Unit::TestCase
end
end
def test_times_bignum_redefine_plus_lt
assert_separately([], "#{<<-"begin;"}\n#{<<~"end;"}")
begin;
called = false
Integer.class_eval do
alias old_plus +
undef +
define_method(:+){|x| called = true; 1}
alias old_lt <
undef <
define_method(:<){|x| called = true}
end
big = 2**65
big.times{break 0}
Integer.class_eval do
undef +
alias + old_plus
undef <
alias < old_lt
end
bug18377 = "[ruby-core:106361]"
assert_equal(false, called, bug18377)
end;
end
def assert_int_equal(expected, result, mesg = nil)
assert_kind_of(Integer, result, mesg)
assert_equal(expected, result, mesg)