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path: root/vendor/github.com/gogo/protobuf/proto/pointer_unsafe_gogo.go
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Diffstat (limited to 'vendor/github.com/gogo/protobuf/proto/pointer_unsafe_gogo.go')
-rw-r--r--vendor/github.com/gogo/protobuf/proto/pointer_unsafe_gogo.go100
1 files changed, 14 insertions, 86 deletions
diff --git a/vendor/github.com/gogo/protobuf/proto/pointer_unsafe_gogo.go b/vendor/github.com/gogo/protobuf/proto/pointer_unsafe_gogo.go
index f156a29f0..aca8eed02 100644
--- a/vendor/github.com/gogo/protobuf/proto/pointer_unsafe_gogo.go
+++ b/vendor/github.com/gogo/protobuf/proto/pointer_unsafe_gogo.go
@@ -1,6 +1,6 @@
// Protocol Buffers for Go with Gadgets
//
-// Copyright (c) 2013, The GoGo Authors. All rights reserved.
+// Copyright (c) 2018, The GoGo Authors. All rights reserved.
// http://github.com/gogo/protobuf
//
// Redistribution and use in source and binary forms, with or without
@@ -26,7 +26,7 @@
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-// +build !appengine,!js
+// +build !purego,!appengine,!js
// This file contains the implementation of the proto field accesses using package unsafe.
@@ -37,92 +37,20 @@ import (
"unsafe"
)
-func structPointer_InterfaceAt(p structPointer, f field, t reflect.Type) interface{} {
- point := unsafe.Pointer(uintptr(p) + uintptr(f))
- r := reflect.NewAt(t, point)
- return r.Interface()
+func (p pointer) getRef() pointer {
+ return pointer{p: (unsafe.Pointer)(&p.p)}
}
-func structPointer_InterfaceRef(p structPointer, f field, t reflect.Type) interface{} {
- point := unsafe.Pointer(uintptr(p) + uintptr(f))
- r := reflect.NewAt(t, point)
- if r.Elem().IsNil() {
- return nil
- }
- return r.Elem().Interface()
+func (p pointer) appendRef(v pointer, typ reflect.Type) {
+ slice := p.getSlice(typ)
+ elem := v.asPointerTo(typ).Elem()
+ newSlice := reflect.Append(slice, elem)
+ slice.Set(newSlice)
}
-func copyUintPtr(oldptr, newptr uintptr, size int) {
- oldbytes := make([]byte, 0)
- oldslice := (*reflect.SliceHeader)(unsafe.Pointer(&oldbytes))
- oldslice.Data = oldptr
- oldslice.Len = size
- oldslice.Cap = size
- newbytes := make([]byte, 0)
- newslice := (*reflect.SliceHeader)(unsafe.Pointer(&newbytes))
- newslice.Data = newptr
- newslice.Len = size
- newslice.Cap = size
- copy(newbytes, oldbytes)
-}
-
-func structPointer_Copy(oldptr structPointer, newptr structPointer, size int) {
- copyUintPtr(uintptr(oldptr), uintptr(newptr), size)
-}
-
-func appendStructPointer(base structPointer, f field, typ reflect.Type) structPointer {
- size := typ.Elem().Size()
-
- oldHeader := structPointer_GetSliceHeader(base, f)
- oldSlice := reflect.NewAt(typ, unsafe.Pointer(oldHeader)).Elem()
- newLen := oldHeader.Len + 1
- newSlice := reflect.MakeSlice(typ, newLen, newLen)
- reflect.Copy(newSlice, oldSlice)
- bas := toStructPointer(newSlice)
- oldHeader.Data = uintptr(bas)
- oldHeader.Len = newLen
- oldHeader.Cap = newLen
-
- return structPointer(unsafe.Pointer(uintptr(unsafe.Pointer(bas)) + uintptr(uintptr(newLen-1)*size)))
-}
-
-func structPointer_FieldPointer(p structPointer, f field) structPointer {
- return structPointer(unsafe.Pointer(uintptr(p) + uintptr(f)))
-}
-
-func structPointer_GetRefStructPointer(p structPointer, f field) structPointer {
- return structPointer((*structPointer)(unsafe.Pointer(uintptr(p) + uintptr(f))))
-}
-
-func structPointer_GetSliceHeader(p structPointer, f field) *reflect.SliceHeader {
- return (*reflect.SliceHeader)(unsafe.Pointer(uintptr(p) + uintptr(f)))
-}
-
-func structPointer_Add(p structPointer, size field) structPointer {
- return structPointer(unsafe.Pointer(uintptr(p) + uintptr(size)))
-}
-
-func structPointer_Len(p structPointer, f field) int {
- return len(*(*[]interface{})(unsafe.Pointer(structPointer_GetRefStructPointer(p, f))))
-}
-
-func structPointer_StructRefSlice(p structPointer, f field, size uintptr) *structRefSlice {
- return &structRefSlice{p: p, f: f, size: size}
-}
-
-// A structRefSlice represents a slice of structs (themselves submessages or groups).
-type structRefSlice struct {
- p structPointer
- f field
- size uintptr
-}
-
-func (v *structRefSlice) Len() int {
- return structPointer_Len(v.p, v.f)
-}
-
-func (v *structRefSlice) Index(i int) structPointer {
- ss := structPointer_GetStructPointer(v.p, v.f)
- ss1 := structPointer_GetRefStructPointer(ss, 0)
- return structPointer_Add(ss1, field(uintptr(i)*v.size))
+func (p pointer) getSlice(typ reflect.Type) reflect.Value {
+ sliceTyp := reflect.SliceOf(typ)
+ slice := p.asPointerTo(sliceTyp)
+ slice = slice.Elem()
+ return slice
}