| 1 | // Copyright 2021 The Go Authors. All rights reserved. |
|---|---|
| 2 | // Use of this source code is governed by a BSD-style |
| 3 | // license that can be found in the LICENSE file. |
| 4 | |
| 5 | // go:build ignore |
| 6 | |
| 7 | package testdata |
| 8 | |
| 9 | type I interface { |
| 10 | Foo() |
| 11 | } |
| 12 | |
| 13 | type A struct{} |
| 14 | |
| 15 | func (a A) Foo() {} |
| 16 | |
| 17 | type B struct{} |
| 18 | |
| 19 | func (b B) Foo() {} |
| 20 | |
| 21 | type C struct{} |
| 22 | |
| 23 | func (c C) Foo() {} |
| 24 | |
| 25 | func NewB() B { |
| 26 | return B{} |
| 27 | } |
| 28 | |
| 29 | func Do(b bool) I { |
| 30 | if b { |
| 31 | return A{} |
| 32 | } |
| 33 | |
| 34 | c := C{} |
| 35 | c.Foo() |
| 36 | |
| 37 | return NewB() |
| 38 | } |
| 39 | |
| 40 | func Baz(b bool) { |
| 41 | Do(b).Foo() |
| 42 | } |
| 43 | |
| 44 | // Relevant SSA: |
| 45 | // func Baz(b bool): |
| 46 | // t0 = Do(b) |
| 47 | // t1 = invoke t0.Foo() |
| 48 | // return |
| 49 | |
| 50 | // func Do(b bool) I: |
| 51 | // ... |
| 52 | // t3 = local C (c) |
| 53 | // t4 = *t3 |
| 54 | // t5 = (C).Foo(t4) |
| 55 | // t6 = NewB() |
| 56 | // t7 = make I <- B (t6) |
| 57 | // return t7 |
| 58 | |
| 59 | // WANT: |
| 60 | // Baz: Do(b) -> Do; invoke t0.Foo() -> A.Foo, B.Foo |
| 61 | // Do: (C).Foo(t4) -> C.Foo; NewB() -> NewB |
| 62 |