fun readVarint64()

in crumb-compiler/src/main/kotlin/com/uber/crumb/internal/wire/ProtoReader.kt [332:350]

• 19 lines of code
• 5 McCabe index (conditional complexity)

  fun readVarint64(): Long {
    if (state != STATE_VARINT && state != STATE_LENGTH_DELIMITED) {
      throw ProtocolException("Expected VARINT or LENGTH_DELIMITED but was $state")
    }
    var shift = 0
    var result: Long = 0
    while (shift < 64) {
      source.require(1) // Throws EOFException if insufficient bytes are available.
      pos++
      val b = source.readByte()
      result = result or ((b and 0x7F).toLong() shl shift)
      if (b and 0x80 == 0) {
        afterPackableScalar(STATE_VARINT)
        return result
      }
      shift += 7
    }
    throw ProtocolException("WireInput encountered a malformed varint")
  }