module RBS
  class Sorter
    include RBS::AST

    type member = AST::Declarations::Class::member
                | AST::Declarations::Module::member
                | AST::Declarations::Interface::member

    attr_reader path: Pathname

    attr_reader stdout: IO

    def initialize: (Pathname path, ?stdout: IO) -> void

    def run: () -> void

    def group: (member member) -> Numeric

    def key: (member member) -> String

    def sort_decl!: (AST::Declarations::t decl) -> void
  end
end