module FFI
  class PlatformError < LoadError
  end

  module Platform
    OS: String

    OSVERSION: Integer

    CPU: String

    ARCH: String

    IS_GNU: bool
    IS_LINUX: bool
    IS_MAC: bool
    IS_FREEBSD: bool
    IS_NETBSD: bool
    IS_OPENBSD: bool
    IS_DRAGONFLYBSD: bool
    IS_SOLARIS: bool
    IS_WINDOWS: bool
    IS_BSD: bool

    NAME: String

    CONF_DIR: String

    LIBPREFIX: String

    LIBSUFFIX: String

    LIBC: String

    LITTLE_ENDIAN: Integer

    BIG_ENDIAN: Integer

    def self.bsd?: () -> bool
    def self.windows?: () -> bool
    def self.mac?: () -> bool
    def self.solaris?: () -> bool
    def self.unix?: () -> bool

    private

    def self.is_os: (String os) -> bool
  end
end