internal/line/line.go


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package line

import "sync"

type Line struct {
	sync.Mutex
	num int64
}

func (l *Line) Inc() {
	l.Lock()
	defer l.Unlock()

	l.num++
}

func (l *Line) Num() int64 {
	l.Lock()
	defer l.Unlock()

	return l.num
}