package zerolog import ( "context" "io/ioutil" ) var disabledLogger = New(ioutil.Discard).Level(Disabled) type ctxKey struct{} // WithContext returns a copy of ctx with l associated. func (l Logger) WithContext(ctx context.Context) context.Context { if lp, ok := ctx.Value(ctxKey{}).(*Logger); ok { // Update existing pointer. *lp = l return ctx } return context.WithValue(ctx, ctxKey{}, &l) } // Ctx returns the Logger associated with the ctx. If no logger // is associated, a disabled logger is returned. func Ctx(ctx context.Context) Logger { if l, ok := ctx.Value(ctxKey{}).(*Logger); ok { return *l } return disabledLogger }