Class: Object

Inherits:
BasicObject
Defined in:
lib/keystone/core_ext/blank.rb,
lib/keystone/core_ext/object.rb

Instance Method Summary collapse

Instance Method Details

#blank? ⇒ Boolean

copy from activesupport

Returns:

  • (Boolean) 


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# File 'lib/keystone/core_ext/blank.rb', line 3

def blank?
  respond_to?(:empty?) ? empty? : !self
end

#class_def(name, &blk) ⇒ Object

www.yohasebe.com/pages/trans-seeing-metaclasses-clearly/



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# File 'lib/keystone/core_ext/object.rb', line 20

def class_def(name, &blk)
  class_eval { define_method name, &blk }
end

#meta_def(name, &blk) ⇒ Object

www.yohasebe.com/pages/trans-seeing-metaclasses-clearly/



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# File 'lib/keystone/core_ext/object.rb', line 15

def meta_def(name, &blk)
 meta_eval { define_method name, &blk }
end

#meta_eval(&blk) ⇒ Object

www.yohasebe.com/pages/trans-seeing-metaclasses-clearly/



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# File 'lib/keystone/core_ext/object.rb', line 10

def meta_eval(&blk)
  metaclass.instance_eval(&blk)
end

#metaclass ⇒ Object

www.yohasebe.com/pages/trans-seeing-metaclasses-clearly/



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# File 'lib/keystone/core_ext/object.rb', line 3

def metaclass
  class << self
    self
  end
end

#tap {|_self| ... } ⇒ Object

1.8.7 エミュレートTODO version 指定

Yields:

  • (_self)

Yield Parameters:

  • _self (Object) —

    the object that the method was called on



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# File 'lib/keystone/core_ext/object.rb', line 26

def tap
  yield(self)
  self
end

#tapp ⇒ Object 



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# File 'lib/keystone/core_ext/object.rb', line 31

def tapp
  self.tap{|obj| p obj}
end