if (c.isLowSurrogate() || !low.isLowSurrogate()) {
              '?'.code
            } else {
              i++
              0x010000 + (c.code and 0x03ff shl 10 or (low.code and 0x03ff))
            }
          }

          else -> c.code
        }
      i++
    }
    return result
  }

  private val Int.punycodeDigit: Int
    get() =

  }

  @Test fun streamIdHasReservedBit() {
    val writer = Http2Writer(Buffer(), true)
    assertFailsWith<IllegalArgumentException> {
      var streamId = 3
      streamId = streamId or (1L shl 31).toInt() // set reserved bit
      writer.frameHeader(streamId, Http2.INITIAL_MAX_FRAME_SIZE, Http2.TYPE_DATA, FLAG_NONE)
    }.also { expected ->
      assertThat(expected.message).isEqualTo("reserved bit set: -2147483645")

pkg go/token, const REM_ASSIGN Token
pkg go/token, const RETURN Token
pkg go/token, const RPAREN Token
pkg go/token, const SELECT Token
pkg go/token, const SEMICOLON Token
pkg go/token, const SHL Token
pkg go/token, const SHL_ASSIGN Token
pkg go/token, const SHR Token
pkg go/token, const SHR_ASSIGN Token
pkg go/token, const STRING Token
pkg go/token, const STRUCT Token
pkg go/token, const SUB Token

pkg go/token, const REM = 16
pkg go/token, const REM_ASSIGN = 27
pkg go/token, const RETURN = 80
pkg go/token, const RPAREN = 54
pkg go/token, const SELECT = 81
pkg go/token, const SEMICOLON = 57
pkg go/token, const SHL = 20
pkg go/token, const SHL_ASSIGN = 31
pkg go/token, const SHR = 21
pkg go/token, const SHR_ASSIGN = 32
pkg go/token, const STRING = 9
pkg go/token, const STRUCT = 82
pkg go/token, const SUB = 13