Module: OOP::Tools::ClassMethods

Defined in:
lib/oop/tools.rb

Instance Method Summary collapse

Instance Method Details

#konstructor(*parts, &block) ⇒ Object 



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# File 'lib/oop/tools.rb', line 12

def konstructor(*parts, &block)
  parts_hsh = if parts.last.is_a?(Hash)
    *parts, hsh = parts
    parts += hsh.keys
    parts.reduce({}){|m,e| m[e] = nil; m}.merge(hsh)
  else
    parts.reduce({}){|m,e| m[e] = nil; m}
  end
  define_method(:initialize) do |opts|
    if block
      opts = block.call(opts) || raise("#{self} invalid with #{opts}")
    end

    opts = opts.map{|k,v| [k.to_sym, v] }.to_h
    @opts = {}
    extra_args = (opts.keys - parts)
    missing_args = parts.select do |k|
      !opts.has_key?(k) && !parts_hsh.has_key?(k)
    end
    if extra_args.any?
      raise "extra args: #{extra_args}"
    elsif missing_args.any?
      raise "missing args: #{missing_args}"
    end

    opts.each do |k, v|
      k = k.to_sym
      if self.is_a? Value
        @opts[_rules.cast_to_value(k)] = _rules.cast_to_value(v)
      else
        @opts[k] = v
      end
    end
    @opts
  end
  parts_hsh.each do |part, defaultt|
    part = part.to_sym
    define_method(part) do
      @opts[part] ||= defaultt
    end
  end
end

#message(meth, &block) ⇒ Object 



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# File 'lib/oop/tools.rb', line 4

def message(meth, &block)
  define_method(meth) do |*args, &blk|
    args = args.map do |arg|
      _rules.cast_to_value(arg)
    end
    _rules.cast_to_value(self.instance_exec(*(args + [blk]), &block))
  end
end