diff options
Diffstat (limited to 'vendor/github.com/golang/protobuf/proto/pointer_reflect.go')
-rw-r--r-- | vendor/github.com/golang/protobuf/proto/pointer_reflect.go | 360 |
1 files changed, 0 insertions, 360 deletions
diff --git a/vendor/github.com/golang/protobuf/proto/pointer_reflect.go b/vendor/github.com/golang/protobuf/proto/pointer_reflect.go deleted file mode 100644 index 94fa9194..00000000 --- a/vendor/github.com/golang/protobuf/proto/pointer_reflect.go +++ /dev/null @@ -1,360 +0,0 @@ -// Go support for Protocol Buffers - Google's data interchange format -// -// Copyright 2012 The Go Authors. All rights reserved. -// https://github.com/golang/protobuf -// -// Redistribution and use in source and binary forms, with or without -// modification, are permitted provided that the following conditions are -// met: -// -// * Redistributions of source code must retain the above copyright -// notice, this list of conditions and the following disclaimer. -// * Redistributions in binary form must reproduce the above -// copyright notice, this list of conditions and the following disclaimer -// in the documentation and/or other materials provided with the -// distribution. -// * Neither the name of Google Inc. nor the names of its -// contributors may be used to endorse or promote products derived from -// this software without specific prior written permission. -// -// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS -// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT -// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR -// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT -// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, -// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT -// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, -// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY -// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT -// (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 purego appengine js - -// This file contains an implementation of proto field accesses using package reflect. -// It is slower than the code in pointer_unsafe.go but it avoids package unsafe and can -// be used on App Engine. - -package proto - -import ( - "reflect" - "sync" -) - -const unsafeAllowed = false - -// A field identifies a field in a struct, accessible from a pointer. -// In this implementation, a field is identified by the sequence of field indices -// passed to reflect's FieldByIndex. -type field []int - -// toField returns a field equivalent to the given reflect field. -func toField(f *reflect.StructField) field { - return f.Index -} - -// invalidField is an invalid field identifier. -var invalidField = field(nil) - -// zeroField is a noop when calling pointer.offset. -var zeroField = field([]int{}) - -// IsValid reports whether the field identifier is valid. -func (f field) IsValid() bool { return f != nil } - -// The pointer type is for the table-driven decoder. -// The implementation here uses a reflect.Value of pointer type to -// create a generic pointer. In pointer_unsafe.go we use unsafe -// instead of reflect to implement the same (but faster) interface. -type pointer struct { - v reflect.Value -} - -// toPointer converts an interface of pointer type to a pointer -// that points to the same target. -func toPointer(i *Message) pointer { - return pointer{v: reflect.ValueOf(*i)} -} - -// toAddrPointer converts an interface to a pointer that points to -// the interface data. -func toAddrPointer(i *interface{}, isptr, deref bool) pointer { - v := reflect.ValueOf(*i) - u := reflect.New(v.Type()) - u.Elem().Set(v) - if deref { - u = u.Elem() - } - return pointer{v: u} -} - -// valToPointer converts v to a pointer. v must be of pointer type. -func valToPointer(v reflect.Value) pointer { - return pointer{v: v} -} - -// offset converts from a pointer to a structure to a pointer to -// one of its fields. -func (p pointer) offset(f field) pointer { - return pointer{v: p.v.Elem().FieldByIndex(f).Addr()} -} - -func (p pointer) isNil() bool { - return p.v.IsNil() -} - -// grow updates the slice s in place to make it one element longer. -// s must be addressable. -// Returns the (addressable) new element. -func grow(s reflect.Value) reflect.Value { - n, m := s.Len(), s.Cap() - if n < m { - s.SetLen(n + 1) - } else { - s.Set(reflect.Append(s, reflect.Zero(s.Type().Elem()))) - } - return s.Index(n) -} - -func (p pointer) toInt64() *int64 { - return p.v.Interface().(*int64) -} -func (p pointer) toInt64Ptr() **int64 { - return p.v.Interface().(**int64) -} -func (p pointer) toInt64Slice() *[]int64 { - return p.v.Interface().(*[]int64) -} - -var int32ptr = reflect.TypeOf((*int32)(nil)) - -func (p pointer) toInt32() *int32 { - return p.v.Convert(int32ptr).Interface().(*int32) -} - -// The toInt32Ptr/Slice methods don't work because of enums. -// Instead, we must use set/get methods for the int32ptr/slice case. -/* - func (p pointer) toInt32Ptr() **int32 { - return p.v.Interface().(**int32) -} - func (p pointer) toInt32Slice() *[]int32 { - return p.v.Interface().(*[]int32) -} -*/ -func (p pointer) getInt32Ptr() *int32 { - if p.v.Type().Elem().Elem() == reflect.TypeOf(int32(0)) { - // raw int32 type - return p.v.Elem().Interface().(*int32) - } - // an enum - return p.v.Elem().Convert(int32PtrType).Interface().(*int32) -} -func (p pointer) setInt32Ptr(v int32) { - // Allocate value in a *int32. Possibly convert that to a *enum. - // Then assign it to a **int32 or **enum. - // Note: we can convert *int32 to *enum, but we can't convert - // **int32 to **enum! - p.v.Elem().Set(reflect.ValueOf(&v).Convert(p.v.Type().Elem())) -} - -// getInt32Slice copies []int32 from p as a new slice. -// This behavior differs from the implementation in pointer_unsafe.go. -func (p pointer) getInt32Slice() []int32 { - if p.v.Type().Elem().Elem() == reflect.TypeOf(int32(0)) { - // raw int32 type - return p.v.Elem().Interface().([]int32) - } - // an enum - // Allocate a []int32, then assign []enum's values into it. - // Note: we can't convert []enum to []int32. - slice := p.v.Elem() - s := make([]int32, slice.Len()) - for i := 0; i < slice.Len(); i++ { - s[i] = int32(slice.Index(i).Int()) - } - return s -} - -// setInt32Slice copies []int32 into p as a new slice. -// This behavior differs from the implementation in pointer_unsafe.go. -func (p pointer) setInt32Slice(v []int32) { - if p.v.Type().Elem().Elem() == reflect.TypeOf(int32(0)) { - // raw int32 type - p.v.Elem().Set(reflect.ValueOf(v)) - return - } - // an enum - // Allocate a []enum, then assign []int32's values into it. - // Note: we can't convert []enum to []int32. - slice := reflect.MakeSlice(p.v.Type().Elem(), len(v), cap(v)) - for i, x := range v { - slice.Index(i).SetInt(int64(x)) - } - p.v.Elem().Set(slice) -} -func (p pointer) appendInt32Slice(v int32) { - grow(p.v.Elem()).SetInt(int64(v)) -} - -func (p pointer) toUint64() *uint64 { - return p.v.Interface().(*uint64) -} -func (p pointer) toUint64Ptr() **uint64 { - return p.v.Interface().(**uint64) -} -func (p pointer) toUint64Slice() *[]uint64 { - return p.v.Interface().(*[]uint64) -} -func (p pointer) toUint32() *uint32 { - return p.v.Interface().(*uint32) -} -func (p pointer) toUint32Ptr() **uint32 { - return p.v.Interface().(**uint32) -} -func (p pointer) toUint32Slice() *[]uint32 { - return p.v.Interface().(*[]uint32) -} -func (p pointer) toBool() *bool { - return p.v.Interface().(*bool) -} -func (p pointer) toBoolPtr() **bool { - return p.v.Interface().(**bool) -} -func (p pointer) toBoolSlice() *[]bool { - return p.v.Interface().(*[]bool) -} -func (p pointer) toFloat64() *float64 { - return p.v.Interface().(*float64) -} -func (p pointer) toFloat64Ptr() **float64 { - return p.v.Interface().(**float64) -} -func (p pointer) toFloat64Slice() *[]float64 { - return p.v.Interface().(*[]float64) -} -func (p pointer) toFloat32() *float32 { - return p.v.Interface().(*float32) -} -func (p pointer) toFloat32Ptr() **float32 { - return p.v.Interface().(**float32) -} -func (p pointer) toFloat32Slice() *[]float32 { - return p.v.Interface().(*[]float32) -} -func (p pointer) toString() *string { - return p.v.Interface().(*string) -} -func (p pointer) toStringPtr() **string { - return p.v.Interface().(**string) -} -func (p pointer) toStringSlice() *[]string { - return p.v.Interface().(*[]string) -} -func (p pointer) toBytes() *[]byte { - return p.v.Interface().(*[]byte) -} -func (p pointer) toBytesSlice() *[][]byte { - return p.v.Interface().(*[][]byte) -} -func (p pointer) toExtensions() *XXX_InternalExtensions { - return p.v.Interface().(*XXX_InternalExtensions) -} -func (p pointer) toOldExtensions() *map[int32]Extension { - return p.v.Interface().(*map[int32]Extension) -} -func (p pointer) getPointer() pointer { - return pointer{v: p.v.Elem()} -} -func (p pointer) setPointer(q pointer) { - p.v.Elem().Set(q.v) -} -func (p pointer) appendPointer(q pointer) { - grow(p.v.Elem()).Set(q.v) -} - -// getPointerSlice copies []*T from p as a new []pointer. -// This behavior differs from the implementation in pointer_unsafe.go. -func (p pointer) getPointerSlice() []pointer { - if p.v.IsNil() { - return nil - } - n := p.v.Elem().Len() - s := make([]pointer, n) - for i := 0; i < n; i++ { - s[i] = pointer{v: p.v.Elem().Index(i)} - } - return s -} - -// setPointerSlice copies []pointer into p as a new []*T. -// This behavior differs from the implementation in pointer_unsafe.go. -func (p pointer) setPointerSlice(v []pointer) { - if v == nil { - p.v.Elem().Set(reflect.New(p.v.Elem().Type()).Elem()) - return - } - s := reflect.MakeSlice(p.v.Elem().Type(), 0, len(v)) - for _, p := range v { - s = reflect.Append(s, p.v) - } - p.v.Elem().Set(s) -} - -// getInterfacePointer returns a pointer that points to the -// interface data of the interface pointed by p. -func (p pointer) getInterfacePointer() pointer { - if p.v.Elem().IsNil() { - return pointer{v: p.v.Elem()} - } - return pointer{v: p.v.Elem().Elem().Elem().Field(0).Addr()} // *interface -> interface -> *struct -> struct -} - -func (p pointer) asPointerTo(t reflect.Type) reflect.Value { - // TODO: check that p.v.Type().Elem() == t? - return p.v -} - -func atomicLoadUnmarshalInfo(p **unmarshalInfo) *unmarshalInfo { - atomicLock.Lock() - defer atomicLock.Unlock() - return *p -} -func atomicStoreUnmarshalInfo(p **unmarshalInfo, v *unmarshalInfo) { - atomicLock.Lock() - defer atomicLock.Unlock() - *p = v -} -func atomicLoadMarshalInfo(p **marshalInfo) *marshalInfo { - atomicLock.Lock() - defer atomicLock.Unlock() - return *p -} -func atomicStoreMarshalInfo(p **marshalInfo, v *marshalInfo) { - atomicLock.Lock() - defer atomicLock.Unlock() - *p = v -} -func atomicLoadMergeInfo(p **mergeInfo) *mergeInfo { - atomicLock.Lock() - defer atomicLock.Unlock() - return *p -} -func atomicStoreMergeInfo(p **mergeInfo, v *mergeInfo) { - atomicLock.Lock() - defer atomicLock.Unlock() - *p = v -} -func atomicLoadDiscardInfo(p **discardInfo) *discardInfo { - atomicLock.Lock() - defer atomicLock.Unlock() - return *p -} -func atomicStoreDiscardInfo(p **discardInfo, v *discardInfo) { - atomicLock.Lock() - defer atomicLock.Unlock() - *p = v -} - -var atomicLock sync.Mutex |