rtti.go
651 Bytes
package main
// Regression test for oracle crash
// https://code.google.com/p/go/issues/detail?id=6605
//
// Using reflection, methods may be called on types that are not the
// operand of any ssa.MakeInterface instruction. In this example,
// (Y).F is called by deriving the type Y from *Y. Prior to the fix,
// no RTTI (or method set) for type Y was included in the program, so
// the F() call would crash.
import "reflect"
var a int
type X struct{}
func (X) F() *int {
return &a
}
type I interface {
F() *int
}
func main() {
type Y struct{ X }
print(reflect.Indirect(reflect.ValueOf(new(Y))).Interface().(I).F()) // @pointsto main.a
}