diff options
Diffstat (limited to 'vendor/github.com/google/go-cmp/cmp/internal/value/pointer_unsafe.go')
-rw-r--r-- | vendor/github.com/google/go-cmp/cmp/internal/value/pointer_unsafe.go | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/vendor/github.com/google/go-cmp/cmp/internal/value/pointer_unsafe.go b/vendor/github.com/google/go-cmp/cmp/internal/value/pointer_unsafe.go new file mode 100644 index 0000000..da134ae --- /dev/null +++ b/vendor/github.com/google/go-cmp/cmp/internal/value/pointer_unsafe.go @@ -0,0 +1,26 @@ +// Copyright 2018, 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.md file. + +// +build !purego + +package value + +import ( + "reflect" + "unsafe" +) + +// Pointer is an opaque typed pointer and is guaranteed to be comparable. +type Pointer struct { + p unsafe.Pointer + t reflect.Type +} + +// PointerOf returns a Pointer from v, which must be a +// reflect.Ptr, reflect.Slice, or reflect.Map. +func PointerOf(v reflect.Value) Pointer { + // The proper representation of a pointer is unsafe.Pointer, + // which is necessary if the GC ever uses a moving collector. + return Pointer{unsafe.Pointer(v.Pointer()), v.Type()} +} |