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// run
package main
import (
"fmt"
"reflect"
"strings"
)
// Copyright 2019 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
func main() {
defer func() {
e := recover()
if e == nil {
panic("should have panicked")
}
text := fmt.Sprintf("%s", e) // handles both string and runtime.errorString
if !strings.HasPrefix(text, "reflect:") {
panic("wanted a reflect error, got this instead:\n" + text)
}
}()
r := reflect.MakeFunc(reflect.TypeOf(func() error { return nil }),
func(args []reflect.Value) []reflect.Value {
var x [1]reflect.Value
return x[:]
}).Interface().(func() error)
r()
}
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