Panic and recover / Recovering from panic / Essential Go
1234567891011121314151617181920212223242526272829303132333435363738
package main
import (
"fmt"
"runtime"
)
type Foo struct {
Is []int
}
func (fp *Foo) Panic() (err error) {
defer PanicRecovery(&err)
fp.Is[0] = 5
return nil
}
func PanicRecovery(err *error) {
if r := recover(); r != nil {
if _, ok := r.(runtime.Error); ok {
//fmt.Println("Panicing")
//panic(r)
*err = r.(error)
} else {
*err = r.(error)
}
}
}
func main() {
fp := &Foo{}
if err := fp.Panic(); err != nil {
fmt.Printf("Error: %v\n", err)
}
fmt.Println("ok")
}
Go
INFO