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Go Try/Catch/Finally implementation
// source: https://play.golang.org/p/LXroobH8SM
package main
import (
"fmt"
)
type Block struct {
Try func()
Catch func(Exception)
Finally func()
}
type Exception interface{}
func Throw(up Exception) {
panic(up)
}
func (tcf Block) Do() {
if tcf.Finally != nil {
defer tcf.Finally()
}
if tcf.Catch != nil {
defer func() {
if r := recover(); r != nil {
tcf.Catch(r)
}
}()
}
tcf.Try()
}
func main() {
fmt.Println("We started")
Block{
Try: func() {
fmt.Println("I tried")
Throw("Oh,...sh...")
},
Catch: func(e Exception) {
fmt.Printf("Caught %v\n", e)
},
Finally: func() {
fmt.Println("Finally...")
},
}.Do()
fmt.Println("We went on")
}
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