Module: ToyAdt::PublicApi

Extended by:
T::Sig
Included in:
ToyAdt
Defined in:
lib/toy_adt/public_api.rb

Instance Method Summary collapse

Instance Method Details

#sum(**types, &fn) ⇒ Object 



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# File 'lib/toy_adt/public_api.rb', line 33

def sum(**types, &fn)
  container_module = Module.new do
    extend T::Helpers
    sealed!

    const_set(:FIELDS, types.keys)

    module_eval(&fn) if block_given?

    def self.match(&fn) = Matcher.new(from: self, &fn)
    def self.match_call(input, &fn) = match(&fn).call(input)
  end

  types.each do |type, config|
    klass = Class.new(T::Struct) do
      include container_module
      include DeconstructableSorbetStruct

      const_set(:CONTAINER, container_module)

      config.each do |field, type|
        const field, type
      end

      def match(&fn) = self.class::CONTAINER.match(&fn).call(self)
    end

    container_module.const_set(type.capitalize, klass)
    container_module.define_method(type) do
      klass
    end
  end

  container_module
end

#type(**config, &fn) ⇒ Object 



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# File 'lib/toy_adt/public_api.rb', line 15

def type(**config, &fn)
  Class.new(T::Struct) do
    include DeconstructableSorbetStruct

    config.each do |field, type|
      const field, type
    end

    module_eval(&fn) if block_given?
  end
end