File: panic.go

package info (click to toggle)
llvm-toolchain-9 1%3A9.0.1-16
  • links: PTS, VCS
  • area: main
  • in suites: bullseye
  • size: 882,436 kB
  • sloc: cpp: 4,167,636; ansic: 714,256; asm: 457,610; python: 155,927; objc: 65,094; sh: 42,856; lisp: 26,908; perl: 7,786; pascal: 7,722; makefile: 6,881; ml: 5,581; awk: 3,648; cs: 2,027; xml: 888; javascript: 381; ruby: 156
file content (36 lines) | stat: -rw-r--r-- 659 bytes parent folder | download | duplicates (7)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
// +build ignore

package main

// Test of value flow from panic() to recover().
// We model them as stores/loads of a global location.
// We ignore concrete panic types originating from the runtime.

var someval int

type myPanic struct{}

func f(int) {}

func g() string { return "" }

func deadcode() {
	panic(123) // not reached
}

func main() {
	switch someval {
	case 0:
		panic("oops")
	case 1:
		panic(myPanic{})
	case 2:
		panic(f)
	case 3:
		panic(g)
	}
	ex := recover()
	print(ex)                 // @types myPanic | string | func(int) | func() string
	print(ex.(func(int)))     // @pointsto main.f
	print(ex.(func() string)) // @pointsto main.g
}