Changeset 3469

Timestamp:

01/23/06 06:40:43 (4 years ago)

Author:

sam

Message:

Add Object#instance_exec and Proc#bind

Files:

• trunk/activesupport/CHANGELOG (modified) (1 diff)
• trunk/activesupport/lib/active_support/core_ext/object_and_class.rb (modified) (1 diff)
• trunk/activesupport/lib/active_support/core_ext/proc.rb (added)
• trunk/activesupport/test/core_ext/object_and_class_ext_test.rb (modified) (1 diff)
• trunk/activesupport/test/core_ext/proc_test.rb (added)

trunk/activesupport/CHANGELOG

@@ -1 +1 @@
-*SVN*
+
+* Add Object#instance_exec, like instance_eval but passes its arguments to the block.  (Active Support will not override the Ruby 1.9 implementation of this method.) [Sam Stephenson]
+
+* Add Proc#bind(object) for changing a proc or block's self by returning a Method bound to the given object. Based on why the lucky stiff's "cloaker" method. [Sam Stephenson]
-
-* Fix merge and dup for hashes with indifferent access #3404 [kenneth.miller@bitfield.net]

trunk/activesupport/lib/active_support/core_ext/object_and_class.rb

@@ -66 +66 @@
-    ActiveSupport::JSON.encode(self)
-  end
+  
+  unless defined? instance_exec # 1.9
+    def instance_exec(*arguments, &block)
+      block.bind(self)[*arguments]
+    end
+  end
-end
-

trunk/activesupport/test/core_ext/object_and_class_ext_test.rb

@@ -112 +112 @@
-    assert_equal({'a' => 1, 'b' => 2}, object.instance_values)
-  end
+  
+  def test_instance_exec_passes_arguments_to_block
+    block = Proc.new { |value| [self, value] }
+    assert_equal %w(hello goodbye), 'hello'.instance_exec('goodbye', &block)
+  end
+  
-end