The Repo API is from https://github.com/lainio/err2/tree/v0.9.1#error-checks
I like err2 old api, so I create this.
package main
import (
"fmt"
"github.com/shynome/err0"
"github.com/shynome/err0/try"
)
func main() {
var err error
defer err0.Then(&err, func() {
fmt.Println("no error", err)
}, func() {
fmt.Println("has error", err)
})
try.To(fmt.Errorf("hi, error!"))
}