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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-16 19:19:13 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-16 19:19:13 +0000 |
commit | ccd992355df7192993c666236047820244914598 (patch) | |
tree | f00fea65147227b7743083c6148396f74cd66935 /src/reflect/nih_test.go | |
parent | Initial commit. (diff) | |
download | golang-1.21-ccd992355df7192993c666236047820244914598.tar.xz golang-1.21-ccd992355df7192993c666236047820244914598.zip |
Adding upstream version 1.21.8.upstream/1.21.8
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/reflect/nih_test.go')
-rw-r--r-- | src/reflect/nih_test.go | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/src/reflect/nih_test.go b/src/reflect/nih_test.go new file mode 100644 index 0000000..f503939 --- /dev/null +++ b/src/reflect/nih_test.go @@ -0,0 +1,38 @@ +// Copyright 2009 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. + +//go:build cgo + +package reflect_test + +import ( + . "reflect" + "runtime/cgo" + "testing" + "unsafe" +) + +type nih struct { + _ cgo.Incomplete + x int +} + +var global_nih = nih{x: 7} + +func TestNotInHeapDeref(t *testing.T) { + // See issue 48399. + v := ValueOf((*nih)(nil)) + v.Elem() + shouldPanic("reflect: call of reflect.Value.Field on zero Value", func() { v.Elem().Field(0) }) + + v = ValueOf(&global_nih) + if got := v.Elem().Field(1).Int(); got != 7 { + t.Fatalf("got %d, want 7", got) + } + + v = ValueOf((*nih)(unsafe.Pointer(new(int)))) + shouldPanic("reflect: reflect.Value.Elem on an invalid notinheap pointer", func() { v.Elem() }) + shouldPanic("reflect: reflect.Value.Pointer on an invalid notinheap pointer", func() { v.Pointer() }) + shouldPanic("reflect: reflect.Value.UnsafePointer on an invalid notinheap pointer", func() { v.UnsafePointer() }) +} |