Method UpdateContext

log.go:296–308

UpdateContext updates the internal logger's context. Caution: This method is not concurrency safe. Use the With method to create a child logger before modifying the context from concurrent goroutines.

(update func(c Context) Context)

// Caution: This method is not concurrency safe.
// Use the With method to create a child logger before modifying the context from concurrent goroutines.
func (l *Logger) UpdateContext(update func(c Context) Context) {
	if l.disabled() {
		return
	}
	if cap(l.context) == 0 {
		l.context = make([]byte, 0, 500)
	}
	if len(l.context) == 0 {
		l.context = enc.AppendBeginMarker(l.context)
	}
	c := update(Context{*l})
	l.context = c.l.context
}

// Level creates a child logger with the minimum accepted level set to level.
func (l Logger) Level(lvl Level) Logger {