Module: Micro::Struct::Factory::CreateStruct::ClassScope

Defined in:
lib/micro/struct/factory/create_struct.rb

Class Method Summary collapse

Class Method Details

.def_new(struct, members) ⇒ Object 



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# File 'lib/micro/struct/factory/create_struct.rb', line 24

def self.def_new(struct, members)
  # The .new() method will require all required keyword arguments.
  # We are doing this because the Struct constructor keyword init option treats everything as optional.
  #
  struct.class_eval(<<-RUBY, __FILE__, __LINE__ + 1)
    class << self
      undef_method :new

      def new(#{members.to_eval.keyword_args})                         # def new(a:, b:, c: nil) do
        instance = allocate                                            #   instance = allocate
        instance.send(:initialize, #{members.to_eval.positional_args}) #   instance.send(:initialize, a, b, c)
        instance                                                       #   instance
      end                                                              # end

      alias __new__ new
    end
  RUBY
end

.def_private_writers(struct) ⇒ Object 



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# File 'lib/micro/struct/factory/create_struct.rb', line 51

def self.def_private_writers(struct)
  struct.send(:private, *struct.members.map { |member| "#{member}=" })
end

.def_to_proc(struct) ⇒ Object 



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# File 'lib/micro/struct/factory/create_struct.rb', line 43

def self.def_to_proc(struct)
  struct.class_eval(<<-RUBY, __FILE__, __LINE__ + 1)
    def self.to_proc
      ->(hash) { new(**hash) }
    end
  RUBY
end

.evaluate(struct, block) ⇒ Object 



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# File 'lib/micro/struct/factory/create_struct.rb', line 55

def self.evaluate(struct, block)
  struct.class_eval(&block) if block
end