Class: Attribute::Define

Inherits:
Object
  • Object
show all
Defined in:
lib/attribute/define.rb

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(target_class, name, visibility = nil) ⇒ Define

Returns a new instance of Define.



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# File 'lib/attribute/define.rb', line 7

def initialize(target_class, name, visibility=nil)
  visibility ||= :reader

  @target_class = target_class
  @name = name
  @visibility = visibility
end

Instance Attribute Details

#name ⇒ Object (readonly)

Returns the value of attribute name.



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# File 'lib/attribute/define.rb', line 4

def name
  @name
end

#target_class ⇒ Object (readonly)

Returns the value of attribute target_class.



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# File 'lib/attribute/define.rb', line 3

def target_class
  @target_class
end

#visibility ⇒ Object (readonly)

Returns the value of attribute visibility.



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# File 'lib/attribute/define.rb', line 5

def visibility
  @visibility
end

Class Method Details

.!(target_class, name, visibility) ⇒ Object 



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# File 'lib/attribute/define.rb', line 15

def self.!(target_class, name, visibility)
  instance = new target_class, name, visibility
  instance.!
end

Instance Method Details

#! ⇒ Object 



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# File 'lib/attribute/define.rb', line 20

def !
  define_getter if [:reader, :accessor].include? visibility
  define_setter if [:writer, :accessor].include? visibility
end

#define_getter ⇒ Object 



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# File 'lib/attribute/define.rb', line 25

def define_getter
  name = self.name
  target_class.send :define_method, name do
    instance_variable_get("@#{name}")
  end
end

#define_setter ⇒ Object 



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# File 'lib/attribute/define.rb', line 32

def define_setter
  name = self.name
  target_class.send :define_method, "#{name}=" do |value|
    instance_variable_set("@#{name}", value)
  end
end