Times error handling via panics vs. if statements

timing_test.go

package bench

import (
	"errors"
	"os"
	"testing"
)

func TestMain(m *testing.M) {
	code := m.Run()
	os.Exit(code)
}

func BenchmarkPanic(b *testing.B) {
	for i := 0; i < b.N; i++ {
		somethingThatPanics()
	}
}

func somethingThatPanics() {
	defer somethingThatRecovers()
	panic(errors.New("Rob Pike made me do it!"))
}

func somethingThatRecovers() {
	if r := recover(); r != nil {
		return
	}
}

func BenchmarkIfError(t *testing.B) {
	for i := 0; i < t.N; i++ {
		err := somethingThatReturnsAnError()
		if err != nil {
			continue
		}
	}
}

func somethingThatReturnsAnError() error {
	return errors.New("Rob Pike made me do it!")
}