package gun func UVarintLen(x uint64) int { switch { case x < 1<<(7*1): return 1 case x < 1<<(7*2): return 2 case x < 1<<(7*3): return 3 case x < 1<<(7*4): return 4 case x < 1<<(7*5): return 5 case x < 1<<(7*6): return 6 case x < 1<<(7*7): return 7 case x < 1<<(7*8): return 8 case x < 1<<(7*9): return 9 default: return 10 } }