options classname and object_id

# Conflicts:
#	spec/objects_spec.rb

README.md

@@ -43,6 +43,8 @@ sort_keys:     false,  # Do not sort hash keys.
 sort_vars:     true,   # Sort instance variables.
 limit:         false,  # Limit arrays & hashes. Accepts bool or int.
 ruby19_syntax: false,  # Use Ruby 1.9 hash syntax in output.
+class_name:    :class, # Method called to report the instance class name. (e.g. :to_s)
+object_id:     true,   # Show object id.
 color: {
   args:       :pale,
   array:      :white,

lib/awesome_print/formatters/object_formatter.rb

@@ -60,7 +60,9 @@ module AwesomePrint
       end
 
       def awesome_instance
-        "#{object.class}:0x%08x" % (object.__id__ * 2)
+        str = object.send(options[:class_name]).to_s
+        str << ":0x%08x" % (object.__id__ * 2) if options[:object_id]
+        str
       end
 
       def left_aligned

lib/awesome_print/inspector.rb

@@ -23,6 +23,8 @@ module AwesomePrint
         sort_vars:     true,   # Sort instance variables.
         limit:         false,  # Limit arrays & hashes. Accepts bool or int.
         ruby19_syntax: false,  # Use Ruby 1.9 hash syntax in output.
+        class_name:    :class, # Method used to get Instance class name.
+        object_id:     true,   # Show object_id.
         color: {
           args:       :pale,
           array:      :white,

spec/objects_spec.rb

@@ -167,5 +167,54 @@ EOS
       expect(out).to be_similar_to(str)
       expect(hello.ai(plain: true, raw: false)).to eq(hello.inspect)
     end
+
+    it 'object_id' do
+      class Hello
+        def initialize
+          @abra = 1
+          @ca = 2
+          @dabra = 3
+        end
+      end
+
+      hello = Hello.new
+      out = hello.ai(plain: true, raw: true, object_id: false)
+      str = <<-EOS.strip
+#<Hello
+    @abra = 1,
+    @ca = 2,
+    @dabra = 3
+>
+EOS
+      expect(out).to be_similar_to(str)
+      expect(hello.ai(plain: true, raw: false)).to eq(hello.inspect)
+    end
+
+    it 'class_name' do
+      class Hello
+        def initialize
+          @abra = 1
+          @ca = 2
+          @dabra = 3
+        end
+
+        def to_s
+          "CustomizedHello"
+        end
+      end
+
+      hello = Hello.new
+      out = hello.ai(plain: true, raw: true, class_name: :to_s)
+      str = <<-EOS.strip
+#<CustomizedHello:placeholder_id
+    @abra = 1,
+    @ca = 2,
+    @dabra = 3
+>
+EOS
+      expect(out).to be_similar_to(str)
+      expect(hello.ai(plain: true, raw: false)).to eq(hello.inspect)
+    end
+
   end
 end