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https://github.com/golang/go
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f14067f3c1
Fixes #23837 Change-Id: I53f524d87946a0065f28a4ddbe47b40f2b43c459 Reviewed-on: https://go-review.googlesource.com/c/145757 Run-TryBot: Keith Randall <khr@golang.org> Reviewed-by: Matthew Dempsky <mdempsky@google.com>
71 lines
1.1 KiB
Go
71 lines
1.1 KiB
Go
// run
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// Copyright 2018 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package main
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//go:noinline
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func f(p, q *struct{}) bool {
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return *p == *q
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}
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type T struct {
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x struct{}
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y int
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}
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//go:noinline
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func g(p, q *T) bool {
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return p.x == q.x
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}
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//go:noinline
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func h(p, q func() struct{}) bool {
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return p() == q()
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}
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func fi(p, q *struct{}) bool {
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return *p == *q
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}
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func gi(p, q *T) bool {
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return p.x == q.x
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}
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func hi(p, q func() struct{}) bool {
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return p() == q()
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}
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func main() {
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shouldPanic(func() { f(nil, nil) })
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shouldPanic(func() { g(nil, nil) })
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shouldPanic(func() { h(nil, nil) })
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shouldPanic(func() { fi(nil, nil) })
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shouldPanic(func() { gi(nil, nil) })
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shouldPanic(func() { hi(nil, nil) })
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n := 0
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inc := func() struct{} {
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n++
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return struct{}{}
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}
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h(inc, inc)
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if n != 2 {
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panic("inc not called")
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}
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hi(inc, inc)
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if n != 4 {
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panic("inc not called")
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}
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}
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func shouldPanic(x func()) {
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defer func() {
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if recover() == nil {
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panic("did not panic")
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}
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}()
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x()
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}
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