Use binding.receiver instead of binding.eval("self")

lib/irb/completion.rb

@@ -140,23 +140,23 @@ class RegexpCompletor < BaseCompletor # :nodoc:
     using Module.new {
       refine ::Binding do
         def eval_methods
-          ::Kernel.instance_method(:methods).bind(eval("self")).call
+          ::Kernel.instance_method(:methods).bind_call(receiver)
         end
 
         def eval_private_methods
-          ::Kernel.instance_method(:private_methods).bind(eval("self")).call
+          ::Kernel.instance_method(:private_methods).bind_call(receiver)
         end
 
         def eval_instance_variables
-          ::Kernel.instance_method(:instance_variables).bind(eval("self")).call
+          ::Kernel.instance_method(:instance_variables).bind_call(receiver)
         end
 
         def eval_global_variables
-          ::Kernel.instance_method(:global_variables).bind(eval("self")).call
+          ::Kernel.instance_method(:global_variables).bind_call(receiver)
         end
 
         def eval_class_constants
-          ::Module.instance_method(:constants).bind(eval("self.class")).call
+          ::Module.instance_method(:constants).bind_call(receiver.class)
         end
       end
     }

lib/irb/workspace.rb

@@ -61,7 +61,7 @@ def initialize(*main)
       end
 
       if main.empty?
-        @main = eval("self", @binding)
+        @main = @binding.receiver
       else
         @main = main[0]
       end