module GraphQL::Schema::Member::HasDirectives

# File lib/graphql/schema/member/has_directives.rb, line 59
def add_directive(schema_member, directives, directive_class, directive_options)
  remove_directive(directives, directive_class) unless directive_class.repeatable?
  directives << directive_class.new(schema_member, **directive_options)
end

# File lib/graphql/schema/member/has_directives.rb, line 8
def self.extended(child_cls)
  super
  child_cls.module_exec {
    #: self as GraphQL::Schema::Member::HasDirectives
    self.own_directives = nil
  }
end

# File lib/graphql/schema/member/has_directives.rb, line 68
def get_directives(schema_member, directives, directives_method)
  case schema_member
  when Class
    inherited_directives = if schema_member.superclass.respond_to?(directives_method)
      get_directives(schema_member.superclass, schema_member.superclass.public_send(directives_method), directives_method)
    else
      GraphQL::EmptyObjects::EMPTY_ARRAY
    end
    if !inherited_directives.empty? && directives
      dirs = [] #: Array[GraphQL::Schema::Directive]?
      merge_directives(dirs, inherited_directives)
      merge_directives(dirs, directives)
      dirs
    elsif directives
      directives
    elsif !inherited_directives.empty?
      inherited_directives
    else
      GraphQL::EmptyObjects::EMPTY_ARRAY
    end
  when Module
    dirs = nil #: Array[GraphQL::Schema::Directive]?
    ancestors = schema_member.ancestors #: Array[untyped]
    ancestors.reverse_each do |ancestor|
      if ancestor.respond_to?(:own_directives) &&
          !(anc_dirs = ancestor.own_directives).empty?
        dirs ||= []
        merge_directives(dirs, anc_dirs)
      end
    end
    if directives
      dirs ||= []
      merge_directives(dirs, directives)
    end
    dirs || GraphQL::EmptyObjects::EMPTY_ARRAY
  when HasDirectives
    directives || GraphQL::EmptyObjects::EMPTY_ARRAY
  else
    raise "Invariant: how could #{schema_member} not be a Class, Module, or instance of HasDirectives?"
  end
end

# File lib/graphql/schema/member/has_directives.rb, line 64
def remove_directive(directives, directive_class)
  directives && directives.reject! { |d| d.is_a?(directive_class) }
end

# File lib/graphql/schema/member/has_directives.rb, line 31
def directive(dir_class, **options)
  @own_directives ||= []
  HasDirectives.add_directive(self, @own_directives, dir_class, options)
  nil
end

# File lib/graphql/schema/member/has_directives.rb, line 54
def directives
  HasDirectives.get_directives(self, @own_directives, :directives)
end

# File lib/graphql/schema/member/has_directives.rb, line 16
def inherited(child_cls)
  super
  child_cls.own_directives = nil
end

# File lib/graphql/schema/member/has_directives.rb, line 49
def remove_directive(dir_class)
  HasDirectives.remove_directive(@own_directives, dir_class)
  nil
end