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| // errorcheck -0 -d=ssa/opt/debug=3
|
| package main
|
| // Trivial interface call devirtualization test.
|
| type real struct {
| value int
| }
|
| func (r *real) Value() int { return r.value }
|
| type Valuer interface {
| Value() int
| }
|
| type indirectiface struct {
| a, b, c int
| }
|
| func (i indirectiface) Value() int {
| return i.a + i.b + i.c
| }
|
| func main() {
| var r Valuer
| rptr := &real{value: 3}
| r = rptr
|
| if r.Value() != 3 { // ERROR "de-virtualizing call$"
| panic("not 3")
| }
|
| // Can't do types that aren't "direct" interfaces (yet).
| r = indirectiface{3, 4, 5}
| if r.Value() != 12 {
| panic("not 12")
| }
| }
|
|
