* lib/delegate.rb: split executable code into sample directory.

* sample/delegate.rb: ditto.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@46966 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 31 insertions, 0 deletions

diff --git a/sample/delegate.rb b/sample/delegate.rb
new file mode 100644
index 0000000000..918dc08877
--- /dev/null
+++ b/sample/delegate.rb
@@ -0,0 +1,31 @@
+require 'delegate'
+
+class ExtArray<DelegateClass(Array)
+  def initialize()
+    super([])
+  end
+end
+
+ary = ExtArray.new
+p ary.class
+ary.push 25
+p ary
+ary.push 42
+ary.each {|x| p x}
+
+foo = Object.new
+def foo.test
+  25
+end
+def foo.iter
+  yield self
+end
+def foo.error
+  raise 'this is OK'
+end
+foo2 = SimpleDelegator.new(foo)
+p foo2
+foo2.instance_eval{print "foo\n"}
+p foo.test == foo2.test       # => true
+p foo2.iter{[55,true]}        # => true
+foo2.error                    # raise error!