Function F

try.go:198–200

F recovers an error previously panicked with an E function, wraps it, and passes it to fn. The wrapping includes the file and line of the runtime frame in which it occurred. F pairs well with testing.TB.Fatal and log.Fatal.

(fn func(...any))

// The wrapping includes the file and line of the runtime frame in which it occurred.
// F pairs well with testing.TB.Fatal and log.Fatal.
func F(fn func(...any)) {
	r(recover(), func(w wrapError) { f(fn, w) })
}

func e(err error) {
	we := wrapError{error: err}