Class: Object

Inherits:
BasicObject
Includes:
InstanceExecHelper
Defined in:
lib/roleful/core_ext/object.rb

Overview

eigenclass.org/hiki/bounded+space+instance_exec

Defined Under Namespace

Modules: InstanceExecHelper

Instance Method Summary collapse

Instance Method Details

#instance_exec(*args, &block) ⇒ Object 



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# File 'lib/roleful/core_ext/object.rb', line 6

def instance_exec(*args, &block)
  begin
    old_critical, Thread.critical = Thread.critical, true
    n = 0
    n += 1 while respond_to?(mname="__instance_exec#{n}")
    InstanceExecHelper.module_eval{ define_method(mname, &block) }
  ensure
    Thread.critical = old_critical
  end
  begin
    ret = send(mname, *args)
  ensure
    InstanceExecHelper.module_eval{ remove_method(mname) } rescue nil
  end
  ret
end