class Tapioca::Dsl::Compilers::RailsGenerators

~~~
end
def skip_comments; end
sig { returns(T::Boolean)}
def result_type; end
sig { returns(::String)}
class ServiceGenerator
# typed: strong
# service_generator.rbi
~~~rbi
this compiler will produce the RBI file ‘service_generator.rbi` with the following content:
~~~
end
class_option :skip_comments, type: :boolean, default: false
argument :result_type, type: :string
class ServiceGenerator < Rails::Generators::NamedBase
# lib/generators/sample_generator.rb
~~~rb
For example, with the following generator:
`Tapioca::Dsl::Compilers::RailsGenerators` generates RBI files for Rails generators

def base_class_of_constant 

def base_class_of_constant
  ancestor = inherited_ancestors_of(constant).find do |klass|
    qualified_name_of(klass)&.match?(BUILT_IN_MATCHER)
  end
  T.cast(ancestor, T.class_of(::Rails::Generators::Base))
end

def decorate 

def decorate
  base_class = base_class_of_constant
  arguments = constant.arguments - base_class.arguments
  class_options = constant.class_options.reject do |name, option|
    base_class.class_options[name] == option
  end
  return if arguments.empty? && class_options.empty?
  root.create_path(constant) do |klass|
    arguments.each { |argument| generate_methods_for_argument(klass, argument) }
    class_options.each { |_name, option| generate_methods_for_argument(klass, option) }
  end
end

def gather_constants 

def gather_constants
  all_classes.select do |const|
    name = qualified_name_of(const)
    name &&
      !name.match?(BUILT_IN_MATCHER) &&
      ::Rails::Generators::Base > const
  end
end

def generate_methods_for_argument(klass, argument) 

def generate_methods_for_argument(klass, argument)
  klass.create_method(
    argument.name,
    parameters: [],
    return_type: type_for(argument),
  )
end

def type_for(arg) 

def type_for(arg)
  type =
    case arg.type
    when :array then "T::Array[::String]"
    when :boolean then "T::Boolean"
    when :hash then "T::Hash[::String, ::String]"
    when :numeric then "::Numeric"
    when :string then "::String"
    else "T.untyped"
    end
  if arg.required || arg.default
    type
  else
    as_nilable_type(type)
  end
end