Class: Formica::Option

Inherits:
Struct
  • Object
show all
Defined in:
lib/formica.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Instance Attribute Details

#attr_name ⇒ Object

Returns the value of attribute attr_name



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# File 'lib/formica.rb', line 6

def attr_name
  @attr_name
end

#coerce ⇒ Object

Returns the value of attribute coerce



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# File 'lib/formica.rb', line 6

def coerce
  @coerce
end

#default ⇒ Object

Returns the value of attribute default



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# File 'lib/formica.rb', line 6

def default
  @default
end

#depends_on ⇒ Object

Returns the value of attribute depends_on



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# File 'lib/formica.rb', line 6

def depends_on
  @depends_on
end

#validate ⇒ Object

Returns the value of attribute validate



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# File 'lib/formica.rb', line 6

def validate
  @validate
end

Instance Method Details

#define_on(config_class) ⇒ Object 



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# File 'lib/formica.rb', line 7

def define_on(config_class)
  name = attr_name
  config_class.send :define_method, name do
    option = @options[name]
    if option.defined
      option.value
    else
      # evaluate all dependencies first, to help ensure we don't have to write default
      # blocks that clean up after themselves
      option.option.depends_on.each do |attr_name|
        public_send(attr_name)
      end
      option.defined = true
      default = instance_exec(&option.option.default)
      default = option.validate!(default, self)
      option.value = default
    end
  end
end