10 examples of 'golang recover' in Go

333
func test8b() (r int) {
334
	defer varargs(&r, 4, 5, 6)
335
	return
336
}

3139
func (p *morsecodeParser) T() (localctx ITContext) {
3140
	localctx = NewTContext(p, p.GetParserRuleContext(), p.GetState())
3141
	p.EnterRule(localctx, 42, morsecodeParserRULE_t)
3142
3143
	defer func() {
3144
		p.ExitRule()
3145
	}()
3146
3147
	defer func() {
3148
		if err := recover(); err != nil {
3149
			if v, ok := err.(antlr.RecognitionException); ok {
3150
				localctx.SetException(v)
3151
				p.GetErrorHandler().ReportError(p, v)
3152
				p.GetErrorHandler().Recover(p, v)
3153
			} else {
3154
				panic(err)
3155
			}
3156
		}
3157
	}()
3158
3159
	p.EnterOuterAlt(localctx, 1)
3160
	{
3161
		p.SetState(199)
3162
		p.Match(morsecodeParserDASH)
3163
	}
3164
3165
	return localctx
3166
}

6
func RecoverDemo1() {
7
	defer func() {
8
		if err := recover(); err != nil {
9
			fmt.Println("A")
10
		}
11
	}()
12
13
	panic("demo")
14
	fmt.Println("B")
15
}

81
func RecoverDemo6() {
82
	defer func() {
83
		if err := recover(); err != nil {
84
			fmt.Println("A")
85
		}
86
	}()
87
88
	panic(nil)
89
	fmt.Println("B")
90
}

28
func main(){
29
	didPanic := throwsPanic(check_user)
30
	fmt.Println("didPanic =", didPanic)
31
}

688
func f41(p, q *int) (r *int) { // ERROR "live at entry to f41: p q$"
689
	r = p
690
	defer func() { // ERROR "live at call to deferproc: q r$" "live at call to deferreturn: r$"
691
		recover()
692
	}()
693
	printint(0) // ERROR "live at call to printint: q r$"
694
	r = q
695
	return // ERROR "live at call to deferreturn: r$"
696
}

70
func main() {
71
	shouldfail(badlen, "badlen")
72
	shouldfail(biglen, "biglen")
73
	shouldfail(badcap, "badcap")
74
	shouldfail(badcap1, "badcap1")
75
	shouldfail(bigcap, "bigcap")
76
	shouldfail(badchancap, "badchancap")
77
	shouldfail(bigchancap, "bigchancap")
78
	shouldfail(overflowchan, "overflowchan")
79
}

8
func main() {
9
	err := recover()
10
	println(err)
11
}

11
func main() {	
12
	n := int64(100)
13
	x := make([]int, n)
14
	x[99] = 234;	
15
	z := x[n-1]
16
	if z != 234 {
17
		println("BUG")
18
	}
19
	n |= 1<<32
20
	defer func() {
21
		recover()
22
	}()
23
	z = x[n-1]
24
	println("BUG2")
25
}

20
func (this ErrorHandler) Recover(p antlr.Parser, r antlr.RecognitionException) {
21
	os.Exit(1)
22
}