Index: proc.c
===================================================================
--- proc.c	(revision 18724)
+++ proc.c	(working copy)
@@ -1332,6 +1332,18 @@
     return method;
 }
 
+static VALUE
+method_iseq(VALUE method)
+{
+    struct METHOD *data;
+
+    Data_Get_Struct(method, struct METHOD, data);
+
+    VALUE iseqval = (VALUE)data->body->nd_body;
+
+    return iseqval;
+}
+
 int
 rb_node_arity(NODE* body)
 {
@@ -1790,6 +1802,7 @@
     rb_define_method(rb_cMethod, "name", method_name, 0);
     rb_define_method(rb_cMethod, "owner", method_owner, 0);
     rb_define_method(rb_cMethod, "unbind", method_unbind, 0);
+    rb_define_method(rb_cMethod, "iseq", method_iseq, 0);
     rb_define_method(rb_mKernel, "method", rb_obj_method, 1);
     rb_define_method(rb_mKernel, "public_method", rb_obj_public_method, 1);
 
@@ -1807,6 +1820,7 @@
     rb_define_method(rb_cUnboundMethod, "name", method_name, 0);
     rb_define_method(rb_cUnboundMethod, "owner", method_owner, 0);
     rb_define_method(rb_cUnboundMethod, "bind", umethod_bind, 1);
+    rb_define_method(rb_cUnboundMethod, "iseq", method_iseq, 0);
 
     /* Module#*_method */
     rb_define_method(rb_cModule, "instance_method", rb_mod_instance_method, 1);