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* vm_eval.c (rb_f_loop): Support for loop.size

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[Feature #6636]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@37506 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
marcandre 2012-11-06 17:12:20 +00:00
parent b8b01ab995
commit 727024fbac
2 changed files with 10 additions and 1 deletions
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4
test/ruby/test_enumerator.rb
View File

@ -464,5 +464,9 @@ class TestEnumerator < Test::Unit::TestCase
assert_equal 0, [].cycle.size
assert_equal 0, [].cycle(5).size
end
def test_size_for_loops
assert_equal Float::INFINITY, loop.size
end
end

7
vm_eval.c
View File

@ -920,6 +920,11 @@ loop_i(void)
return Qnil;
}
static VALUE
rb_f_loop_size(VALUE self, VALUE args) {
return DBL2NUM(INFINITY);
}
/*
* call-seq:
* loop { block }
@ -942,7 +947,7 @@ loop_i(void)
static VALUE
rb_f_loop(VALUE self)
{
RETURN_ENUMERATOR(self, 0, 0);
RETURN_SIZED_ENUMERATOR(self, 0, 0, rb_f_loop_size);
rb_rescue2(loop_i, (VALUE)0, 0, 0, rb_eStopIteration, (VALUE)0);
return Qnil; /* dummy */
}