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author | dependabot-preview[bot] <27856297+dependabot-preview[bot]@users.noreply.github.com> | 2020-05-21 09:08:47 +0000 |
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committer | Daniel J Walsh <dwalsh@redhat.com> | 2020-05-21 07:35:42 -0400 |
commit | cdd1f2bbaf99f5fae8f5c08a25bccdf478cd9ada (patch) | |
tree | db1c0b9dfc258c40779d38875e71240f93544d22 /vendor/google.golang.org/protobuf/internal/impl/pointer_unsafe.go | |
parent | 8db7b9ea219ef06c50919dcfabdfdca5676e1456 (diff) | |
download | podman-cdd1f2bbaf99f5fae8f5c08a25bccdf478cd9ada.tar.gz podman-cdd1f2bbaf99f5fae8f5c08a25bccdf478cd9ada.tar.bz2 podman-cdd1f2bbaf99f5fae8f5c08a25bccdf478cd9ada.zip |
Bump github.com/onsi/gomega from 1.10.0 to 1.10.1
Bumps [github.com/onsi/gomega](https://github.com/onsi/gomega) from 1.10.0 to 1.10.1.
- [Release notes](https://github.com/onsi/gomega/releases)
- [Changelog](https://github.com/onsi/gomega/blob/master/CHANGELOG.md)
- [Commits](https://github.com/onsi/gomega/compare/v1.10.0...v1.10.1)
Signed-off-by: dependabot-preview[bot] <support@dependabot.com>
Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
Diffstat (limited to 'vendor/google.golang.org/protobuf/internal/impl/pointer_unsafe.go')
-rw-r--r-- | vendor/google.golang.org/protobuf/internal/impl/pointer_unsafe.go | 173 |
1 files changed, 173 insertions, 0 deletions
diff --git a/vendor/google.golang.org/protobuf/internal/impl/pointer_unsafe.go b/vendor/google.golang.org/protobuf/internal/impl/pointer_unsafe.go new file mode 100644 index 000000000..088aa85d4 --- /dev/null +++ b/vendor/google.golang.org/protobuf/internal/impl/pointer_unsafe.go @@ -0,0 +1,173 @@ +// 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 file. + +// +build !purego,!appengine + +package impl + +import ( + "reflect" + "sync/atomic" + "unsafe" +) + +const UnsafeEnabled = true + +// Pointer is an opaque pointer type. +type Pointer unsafe.Pointer + +// offset represents the offset to a struct field, accessible from a pointer. +// The offset is the byte offset to the field from the start of the struct. +type offset uintptr + +// offsetOf returns a field offset for the struct field. +func offsetOf(f reflect.StructField, x exporter) offset { + return offset(f.Offset) +} + +// IsValid reports whether the offset is valid. +func (f offset) IsValid() bool { return f != invalidOffset } + +// invalidOffset is an invalid field offset. +var invalidOffset = ^offset(0) + +// zeroOffset is a noop when calling pointer.Apply. +var zeroOffset = offset(0) + +// pointer is a pointer to a message struct or field. +type pointer struct{ p unsafe.Pointer } + +// pointerOf returns p as a pointer. +func pointerOf(p Pointer) pointer { + return pointer{p: unsafe.Pointer(p)} +} + +// pointerOfValue returns v as a pointer. +func pointerOfValue(v reflect.Value) pointer { + return pointer{p: unsafe.Pointer(v.Pointer())} +} + +// pointerOfIface returns the pointer portion of an interface. +func pointerOfIface(v interface{}) pointer { + type ifaceHeader struct { + Type unsafe.Pointer + Data unsafe.Pointer + } + return pointer{p: (*ifaceHeader)(unsafe.Pointer(&v)).Data} +} + +// IsNil reports whether the pointer is nil. +func (p pointer) IsNil() bool { + return p.p == nil +} + +// Apply adds an offset to the pointer to derive a new pointer +// to a specified field. The pointer must be valid and pointing at a struct. +func (p pointer) Apply(f offset) pointer { + if p.IsNil() { + panic("invalid nil pointer") + } + return pointer{p: unsafe.Pointer(uintptr(p.p) + uintptr(f))} +} + +// AsValueOf treats p as a pointer to an object of type t and returns the value. +// It is equivalent to reflect.ValueOf(p.AsIfaceOf(t)) +func (p pointer) AsValueOf(t reflect.Type) reflect.Value { + return reflect.NewAt(t, p.p) +} + +// AsIfaceOf treats p as a pointer to an object of type t and returns the value. +// It is equivalent to p.AsValueOf(t).Interface() +func (p pointer) AsIfaceOf(t reflect.Type) interface{} { + // TODO: Use tricky unsafe magic to directly create ifaceHeader. + return p.AsValueOf(t).Interface() +} + +func (p pointer) Bool() *bool { return (*bool)(p.p) } +func (p pointer) BoolPtr() **bool { return (**bool)(p.p) } +func (p pointer) BoolSlice() *[]bool { return (*[]bool)(p.p) } +func (p pointer) Int32() *int32 { return (*int32)(p.p) } +func (p pointer) Int32Ptr() **int32 { return (**int32)(p.p) } +func (p pointer) Int32Slice() *[]int32 { return (*[]int32)(p.p) } +func (p pointer) Int64() *int64 { return (*int64)(p.p) } +func (p pointer) Int64Ptr() **int64 { return (**int64)(p.p) } +func (p pointer) Int64Slice() *[]int64 { return (*[]int64)(p.p) } +func (p pointer) Uint32() *uint32 { return (*uint32)(p.p) } +func (p pointer) Uint32Ptr() **uint32 { return (**uint32)(p.p) } +func (p pointer) Uint32Slice() *[]uint32 { return (*[]uint32)(p.p) } +func (p pointer) Uint64() *uint64 { return (*uint64)(p.p) } +func (p pointer) Uint64Ptr() **uint64 { return (**uint64)(p.p) } +func (p pointer) Uint64Slice() *[]uint64 { return (*[]uint64)(p.p) } +func (p pointer) Float32() *float32 { return (*float32)(p.p) } +func (p pointer) Float32Ptr() **float32 { return (**float32)(p.p) } +func (p pointer) Float32Slice() *[]float32 { return (*[]float32)(p.p) } +func (p pointer) Float64() *float64 { return (*float64)(p.p) } +func (p pointer) Float64Ptr() **float64 { return (**float64)(p.p) } +func (p pointer) Float64Slice() *[]float64 { return (*[]float64)(p.p) } +func (p pointer) String() *string { return (*string)(p.p) } +func (p pointer) StringPtr() **string { return (**string)(p.p) } +func (p pointer) StringSlice() *[]string { return (*[]string)(p.p) } +func (p pointer) Bytes() *[]byte { return (*[]byte)(p.p) } +func (p pointer) BytesSlice() *[][]byte { return (*[][]byte)(p.p) } +func (p pointer) WeakFields() *weakFields { return (*weakFields)(p.p) } +func (p pointer) Extensions() *map[int32]ExtensionField { return (*map[int32]ExtensionField)(p.p) } + +func (p pointer) Elem() pointer { + return pointer{p: *(*unsafe.Pointer)(p.p)} +} + +// PointerSlice loads []*T from p as a []pointer. +// The value returned is aliased with the original slice. +// This behavior differs from the implementation in pointer_reflect.go. +func (p pointer) PointerSlice() []pointer { + // Super-tricky - p should point to a []*T where T is a + // message type. We load it as []pointer. + return *(*[]pointer)(p.p) +} + +// AppendPointerSlice appends v to p, which must be a []*T. +func (p pointer) AppendPointerSlice(v pointer) { + *(*[]pointer)(p.p) = append(*(*[]pointer)(p.p), v) +} + +// SetPointer sets *p to v. +func (p pointer) SetPointer(v pointer) { + *(*unsafe.Pointer)(p.p) = (unsafe.Pointer)(v.p) +} + +// Static check that MessageState does not exceed the size of a pointer. +const _ = uint(unsafe.Sizeof(unsafe.Pointer(nil)) - unsafe.Sizeof(MessageState{})) + +func (Export) MessageStateOf(p Pointer) *messageState { + // Super-tricky - see documentation on MessageState. + return (*messageState)(unsafe.Pointer(p)) +} +func (ms *messageState) pointer() pointer { + // Super-tricky - see documentation on MessageState. + return pointer{p: unsafe.Pointer(ms)} +} +func (ms *messageState) messageInfo() *MessageInfo { + mi := ms.LoadMessageInfo() + if mi == nil { + panic("invalid nil message info; this suggests memory corruption due to a race or shallow copy on the message struct") + } + return mi +} +func (ms *messageState) LoadMessageInfo() *MessageInfo { + return (*MessageInfo)(atomic.LoadPointer((*unsafe.Pointer)(unsafe.Pointer(&ms.atomicMessageInfo)))) +} +func (ms *messageState) StoreMessageInfo(mi *MessageInfo) { + atomic.StorePointer((*unsafe.Pointer)(unsafe.Pointer(&ms.atomicMessageInfo)), unsafe.Pointer(mi)) +} + +type atomicNilMessage struct{ p unsafe.Pointer } // p is a *messageReflectWrapper + +func (m *atomicNilMessage) Init(mi *MessageInfo) *messageReflectWrapper { + if p := atomic.LoadPointer(&m.p); p != nil { + return (*messageReflectWrapper)(p) + } + w := &messageReflectWrapper{mi: mi} + atomic.CompareAndSwapPointer(&m.p, nil, (unsafe.Pointer)(w)) + return (*messageReflectWrapper)(atomic.LoadPointer(&m.p)) +} |