Allow optional arguments and/or block for Object#try like Object#send…

… does. [rails#1425 state:resolved]

Original suggestion by Pat Nakajima.

Signed-off-by: Pratik Naik <pratiknaik@gmail.com>

activesupport/lib/active_support/core_ext/object/misc.rb

@@ -73,6 +73,7 @@ def acts_like?(duck)
   end
 
   # Tries to send the method only if object responds to it. Return +nil+ otherwise.
+  # It will also forward any arguments and/or block like Object#send does.
   # 
   # ==== Example :
   # 
@@ -81,7 +82,11 @@ def acts_like?(duck)
   # 
   # With try
   # @person.try(:name)
-  def try(method)
-    send(method) if respond_to?(method, true)
+  #
+  # # try also accepts arguments/blocks for the method it is trying
+  # Person.try(:find, 1)
+  # @people.try(:map) {|p| p.name}
+  def try(method, *args, &block)
+    send(method, *args, &block) if respond_to?(method, true)
   end
 end

activesupport/test/core_ext/object_and_class_ext_test.rb

@@ -271,4 +271,11 @@ class << @string
     assert_equal 5, @string.try(:size)
   end
 
+  def test_argument_forwarding
+    assert_equal 'Hey', @string.try(:sub, 'llo', 'y')
+  end
+
+  def test_block_forwarding
+    assert_equal 'Hey', @string.try(:sub, 'llo') { |match| 'y' }
+  end
 end