Module: HammerBuilder::DynamicClasses

Included in:

Abstract

Defined in:

lib/hammer_builder/dynamic_classes.rb

Overview

class A
  extend DynamicClasses
  dynamic_classes do
    def_class :A do
      def to_s
        'a'
      end
    end
    def_class :B, :A do
      class_eval <<-RUBYCODE, __FILE__, __LINE__+1
        def to_s
          super + 'b'
        end
      RUBYCODE
    end
  end
end

class B < A
end

class C < A
  dynamic_classes do
    extend_class :A do
      def to_s
        'aa'
      end
    end
  end
end

puts A.dc[:A] # => #<Class:0x00000001d449b8(A.dc[:A])>
puts B.dc[:A] # => #<Class:0x00000001d42398(B.dc[:A])>
puts B.dc[:A].new # => a
puts B.dc[:B].new # => ab
puts C.dc[:B].new # => aab

Defined Under Namespace

Modules: Describable Classes: ClassDefinition, ClassExtension, Classes, DescribableClass

Class Method Summary (collapse)

• + (Object) extended(base)

  hook to create Classes instance.

Instance Method Summary (collapse)

• - (Object) create_dynamic_classes private
• - (Classes) dynamic_classes {|Proc, nil| ... } (also: #dc)

  call this to get access to Classes instance to define/extend classes inside definition calls Classes#load! to preload defined classes a Proc enables writing class definitions/extensions.

• - (Object) inherited(base)

  hook to create Classes instance in descendants.

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# File 'lib/hammer_builder/dynamic_classes.rb', line 175

def self.extended(base)
  base.send :create_dynamic_classes
  super
end

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# File 'lib/hammer_builder/dynamic_classes.rb', line 205

def create_dynamic_classes
  @dynamic_classes = Classes.new(self)
end

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# File 'lib/hammer_builder/dynamic_classes.rb', line 191

def dynamic_classes(&definition)
  if definition
    @dynamic_classes.instance_eval &definition
#      @dynamic_classes.load!
    nil
  else
    @dynamic_classes
  end
end

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# File 'lib/hammer_builder/dynamic_classes.rb', line 181

def inherited(base)
  base.send :create_dynamic_classes
  super
end