object.c: fixable float to fixnum

* object.c (rb_convert_to_integer): convert a fixable float to a
  fixnum directly without the convesion method, as well as bignum
  case.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@56497 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 10 insertions, 0 deletions

diff --git a/test/ruby/test_integer.rb b/test/ruby/test_integer.rb
index 32c3511576..00c3c12577 100644
--- a/test/ruby/test_integer.rb
+++ b/test/ruby/test_integer.rb
@@ -104,6 +104,16 @@ class TestInteger < Test::Unit::TestCase
     obj = Struct.new(:s).new(%w[42 not-an-integer])
     def obj.to_str; s.shift; end
     assert_equal(42, Integer(obj, 10))
+
+    assert_separately([], "#{<<-"begin;"}\n#{<<-"end;"}")
+    begin;
+      class Float
+        undef to_int
+        def to_int; raise "conversion failed"; end
+      end
+      assert_equal (1 << 100), Integer((1 << 100).to_f)
+      assert_equal 1, Integer(1.0)
+    end;
   end
 
   def test_int_p