Poc - DSL - Ruby generate Crystal

poc_dsl_ruby_generate_crystal.rb

class CrystalDSL
  attr_reader :code

  def initialize(&block)
    @code = ''
    instance_eval(&block) if block_given?
  end

  def generate(&block)
    instance_eval(&block) if block_given?
  end

  def module(name, &block)
    @code += "module #{name}\n"
    instance_eval(&block) if block_given?
    @code += "end\n"
  end

  def klass(name, &block)
    @code += "class #{name}\n"
    instance_eval(&block) if block_given?
    @code += "end\n"
  end

  def initialize_method(parameter, type, &block)
    @code += "def initialize(#{parameter} : #{type})\n"
    instance_eval(&block) if block_given?
    @code += "end\n"
  end

  def method(name, &block)
    @code += "def #{name}\n"
    instance_eval(&block) if block_given?
    @code += "end\n"
  end

  def usage_example(&block)
    @code += "# Usage example\n"
    instance_eval(&block) if block_given?
  end

  def instance_creation(klass, arguments)
    @code += "instance = #{klass}.new(#{arguments})\n"
  end

  def method_call(method)
    @code += "instance.#{method}\n"
  end
end

# Define the Crystal code using the DSL
crystal_code = CrystalDSL.new do
  generate do
    module 'MyModule' do
      klass 'Person' do
        initialize_method('name', 'String') do
          # Custom initialization code can be added here
        end

        method 'greet' do
          @code += "puts \"Hello, \#{@name}!\"\n"
        end
      end
    end

    usage_example do
      instance_creation('MyModule::Person', '"John"')
      method_call('greet')
    end
  end
end

# Print the generated Crystal code
puts crystal_code.code