Function main

cmd/panic/main.go:47–85

()

)

func main() {
	if len(os.Args) == 2 {
		switch n := os.Args[1]; n {
		case "-h", "-help", "--help", "help":
			usage()
			os.Exit(0)

		case "dump_commands":
			// Undocumented command to do a raw dump of the supported commands. This
			// is used by unit tests in ../../stack.
			items := make([]string, 0, len(types))
			for n := range types {
				items = append(items, n)
			}
			sort.Strings(items)
			for _, n := range items {
				fmt.Printf("%s\n", n)
			}
			os.Exit(0)

		default:
			if f, ok := types[n]; ok {
				fmt.Printf("GOTRACEBACK=%s\n", os.Getenv("GOTRACEBACK"))
				if n == "simple" {
					// Since the map lookup creates another call stack entry, add a
					// one-off "simple" panic style to test the very minimal case.
					// types["simple"].f is never called.
					panic("simple")
				}
				f.f()
				os.Exit(3)
			}
			fmt.Fprintf(stdErr, "unknown panic style %q\n", n)
			os.Exit(1)
		}
	}
	usage()
	os.Exit(1)
}

// Mocked in test.
var stdErr io.Writer = os.Stderr