From 9c0e2db051093767526c96cbe02d3c3b7d28f770 Mon Sep 17 00:00:00 2001 From: Ian Lance Taylor Date: Sat, 5 Dec 2020 08:08:47 -0800 Subject: test: add new test that gofrontend failed to handle The gofrontend code would in some circumstances incorrectly generate a type descriptor for an alias type, causing the type to fail to be equal to the unaliased type. Change-Id: I47d33b0bfde3c72a9a186049539732bdd5a6a96e Reviewed-on: https://go-review.googlesource.com/c/go/+/275632 Trust: Ian Lance Taylor Run-TryBot: Ian Lance Taylor TryBot-Result: Go Bot Reviewed-by: Cherry Zhang --- test/fixedbugs/bug510.dir/a.go | 13 +++++++++++++ test/fixedbugs/bug510.dir/b.go | 14 ++++++++++++++ test/fixedbugs/bug510.go | 9 +++++++++ 3 files changed, 36 insertions(+) create mode 100644 test/fixedbugs/bug510.dir/a.go create mode 100644 test/fixedbugs/bug510.dir/b.go create mode 100644 test/fixedbugs/bug510.go (limited to 'test') diff --git a/test/fixedbugs/bug510.dir/a.go b/test/fixedbugs/bug510.dir/a.go new file mode 100644 index 0000000000..db1cfef366 --- /dev/null +++ b/test/fixedbugs/bug510.dir/a.go @@ -0,0 +1,13 @@ +// Copyright 2020 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. + +package a + +import "reflect" + +type A = map[int] bool + +func F() interface{} { + return reflect.New(reflect.TypeOf((*A)(nil))).Elem().Interface() +} diff --git a/test/fixedbugs/bug510.dir/b.go b/test/fixedbugs/bug510.dir/b.go new file mode 100644 index 0000000000..56b0201858 --- /dev/null +++ b/test/fixedbugs/bug510.dir/b.go @@ -0,0 +1,14 @@ +// Copyright 2020 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. + +package main + +import "./a" + +func main() { + _, ok := a.F().(*map[int]bool) + if !ok { + panic("bad type") + } +} diff --git a/test/fixedbugs/bug510.go b/test/fixedbugs/bug510.go new file mode 100644 index 0000000000..8a6da5dfd6 --- /dev/null +++ b/test/fixedbugs/bug510.go @@ -0,0 +1,9 @@ +// rundir + +// Copyright 2020 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. + +// Gccgo confused type descriptors for aliases. + +package ignored -- cgit v1.2.3-54-g00ecf