Function Example_valuer

log/example_test.go:62–79

()

}

func Example_valuer() {
	logger := log.NewLogfmtLogger(os.Stdout)

	count := 0
	counter := func() interface{} {
		count++
		return count
	}

	logger = log.With(logger, "count", log.Valuer(counter))

	logger.Log("call", "first")
	logger.Log("call", "second")

	// Output:
	// count=1 call=first
	// count=2 call=second
}

func Example_debugInfo() {
	logger := log.NewLogfmtLogger(os.Stdout)