feat(alba): Handle inline associations

lib/typelizer.rb

@@ -18,6 +18,8 @@
 
 require_relative "typelizer/railtie" if defined?(Rails)
 
+require "logger"
+
 module Typelizer
  class << self
  def enabled?

lib/typelizer/config.rb

@@ -29,7 +29,11 @@ class Config < Struct.new(
  class << self
  def instance
  @instance ||= new(
- serializer_name_mapper: ->(serializer) { serializer.name.ends_with?("Serializer") ? serializer.name.delete_suffix("Serializer") : serializer.name.delete_suffix("Resource") },
+ serializer_name_mapper: ->(serializer) do
+ return "" if serializer.name.nil?
+
+ serializer.name.ends_with?("Serializer") ? serializer.name&.delete_suffix("Serializer") : serializer.name&.delete_suffix("Resource")
+ end,
  serializer_model_mapper: ->(serializer) do
  base_class = serializer_name_mapper.call(serializer)
  Object.const_get(base_class) if Object.const_defined?(base_class)

lib/typelizer/generator.rb

@@ -33,8 +33,9 @@ def target_serializers
  raise ArgumentError, "Please ensure all your serializers include Typelizer::DSL." if base_classes.none?
  end
 
- (base_classes + base_classes.flat_map(&:descendants)).uniq.sort_by(&:name)
- .reject { |serializer| Typelizer.reject_class.call(serializer: serializer) }
+ (base_classes + base_classes.flat_map(&:descendants)).uniq
+ .reject { |serializer| Typelizer.reject_class.call(serializer: serializer) || serializer.name.nil? }
+ .sort_by(&:name)
  end
 
  def read_serializers(files = nil)

lib/typelizer/inline_type.rb

@@ -0,0 +1,22 @@
+module Typelizer
+ # InlineType is mainly used with Alba plugin to represent inline associations.
+ # `name `method` is the same interface as `Interface` class.
+ class InlineType
+ TEMPLATE = <<~ERB.strip
+ {
+ <%- properties.each do |property| %>
+ <%= property %>;
+ <% end %>
+ }
+ ERB
+ def initialize(serializer:, config:)
+ @serializer = serializer
+ @config = config
+ end
+
+ def name
+ properties = SerializerPlugins::Alba.new(serializer: @serializer, config: @config).properties
+ ERB.new(TEMPLATE, trim_mode: "-").result_with_hash(properties: properties)
+ end
+ end
+end

lib/typelizer/interface.rb

@@ -54,6 +54,7 @@ def imports
  .filter_map { |interface| interface.name if interface.name != name }
 
  custom_type_imports = attribute_types
+ .reject { |type| type.is_a?(InlineType) }
  .flat_map { |type| extract_typescript_types(type.to_s) }
  .uniq
  .reject { |type| global_type?(type) }

lib/typelizer/serializer_plugins/alba.rb

@@ -1,4 +1,5 @@
 require_relative "base"
+require_relative "../inline_type"
 
 module Typelizer
  module SerializerPlugins
@@ -74,9 +75,10 @@ def build_property(name, attr, **options)
  )
  when ::Alba::Association
  resource = attr.instance_variable_get(:@resource)
+ type = (resource.is_a?(Class) && !resource.name.nil?) ? Interface.new(serializer: resource) : InlineType.new(serializer: resource, config: {})
  Property.new(
  name: name,
- type: Interface.new(serializer: resource),
+ type: type,
  optional: false,
  nullable: false,
  multi: false, # we override this in typelize_method_transform