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// Copyright 2019 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 purego || appengine
// +build purego appengine
package impl
import (
"reflect"
"google.golang.org/protobuf/encoding/protowire"
)
func sizeEnum(p pointer, f *coderFieldInfo, _ marshalOptions) (size int) {
v := p.v.Elem().Int()
return f.tagsize + protowire.SizeVarint(uint64(v))
}
func appendEnum(b []byte, p pointer, f *coderFieldInfo, opts marshalOptions) ([]byte, error) {
v := p.v.Elem().Int()
b = protowire.AppendVarint(b, f.wiretag)
b = protowire.AppendVarint(b, uint64(v))
return b, nil
}
func consumeEnum(b []byte, p pointer, wtyp protowire.Type, f *coderFieldInfo, _ unmarshalOptions) (out unmarshalOutput, err error) {
if wtyp != protowire.VarintType {
return out, errUnknown
}
v, n := protowire.ConsumeVarint(b)
if n < 0 {
return out, errDecode
}
p.v.Elem().SetInt(int64(v))
out.n = n
return out, nil
}
func mergeEnum(dst, src pointer, _ *coderFieldInfo, _ mergeOptions) {
dst.v.Elem().Set(src.v.Elem())
}
var coderEnum = pointerCoderFuncs{
size: sizeEnum,
marshal: appendEnum,
unmarshal: consumeEnum,
merge: mergeEnum,
}
func sizeEnumNoZero(p pointer, f *coderFieldInfo, opts marshalOptions) (size int) {
if p.v.Elem().Int() == 0 {
return 0
}
return sizeEnum(p, f, opts)
}
func appendEnumNoZero(b []byte, p pointer, f *coderFieldInfo, opts marshalOptions) ([]byte, error) {
if p.v.Elem().Int() == 0 {
return b, nil
}
return appendEnum(b, p, f, opts)
}
func mergeEnumNoZero(dst, src pointer, _ *coderFieldInfo, _ mergeOptions) {
if src.v.Elem().Int() != 0 {
dst.v.Elem().Set(src.v.Elem())
}
}
var coderEnumNoZero = pointerCoderFuncs{
size: sizeEnumNoZero,
marshal: appendEnumNoZero,
unmarshal: consumeEnum,
merge: mergeEnumNoZero,
}
func sizeEnumPtr(p pointer, f *coderFieldInfo, opts marshalOptions) (size int) {
return sizeEnum(pointer{p.v.Elem()}, f, opts)
}
func appendEnumPtr(b []byte, p pointer, f *coderFieldInfo, opts marshalOptions) ([]byte, error) {
return appendEnum(b, pointer{p.v.Elem()}, f, opts)
}
func consumeEnumPtr(b []byte, p pointer, wtyp protowire.Type, f *coderFieldInfo, opts unmarshalOptions) (out unmarshalOutput, err error) {
if wtyp != protowire.VarintType {
return out, errUnknown
}
if p.v.Elem().IsNil() {
p.v.Elem().Set(reflect.New(p.v.Elem().Type().Elem()))
}
return consumeEnum(b, pointer{p.v.Elem()}, wtyp, f, opts)
}
func mergeEnumPtr(dst, src pointer, _ *coderFieldInfo, _ mergeOptions) {
if !src.v.Elem().IsNil() {
v := reflect.New(dst.v.Type().Elem().Elem())
v.Elem().Set(src.v.Elem().Elem())
dst.v.Elem().Set(v)
}
}
var coderEnumPtr = pointerCoderFuncs{
size: sizeEnumPtr,
marshal: appendEnumPtr,
unmarshal: consumeEnumPtr,
merge: mergeEnumPtr,
}
func sizeEnumSlice(p pointer, f *coderFieldInfo, opts marshalOptions) (size int) {
s := p.v.Elem()
for i, llen := 0, s.Len(); i < llen; i++ {
size += protowire.SizeVarint(uint64(s.Index(i).Int())) + f.tagsize
}
return size
}
func appendEnumSlice(b []byte, p pointer, f *coderFieldInfo, opts marshalOptions) ([]byte, error) {
s := p.v.Elem()
for i, llen := 0, s.Len(); i < llen; i++ {
b = protowire.AppendVarint(b, f.wiretag)
b = protowire.AppendVarint(b, uint64(s.Index(i).Int()))
}
return b, nil
}
func consumeEnumSlice(b []byte, p pointer, wtyp protowire.Type, f *coderFieldInfo, opts unmarshalOptions) (out unmarshalOutput, err error) {
s := p.v.Elem()
if wtyp == protowire.BytesType {
b, n := protowire.ConsumeBytes(b)
if n < 0 {
return out, errDecode
}
for len(b) > 0 {
v, n := protowire.ConsumeVarint(b)
if n < 0 {
return out, errDecode
}
rv := reflect.New(s.Type().Elem()).Elem()
rv.SetInt(int64(v))
s.Set(reflect.Append(s, rv))
b = b[n:]
}
out.n = n
return out, nil
}
if wtyp != protowire.VarintType {
return out, errUnknown
}
v, n := protowire.ConsumeVarint(b)
if n < 0 {
return out, errDecode
}
rv := reflect.New(s.Type().Elem()).Elem()
rv.SetInt(int64(v))
s.Set(reflect.Append(s, rv))
out.n = n
return out, nil
}
func mergeEnumSlice(dst, src pointer, _ *coderFieldInfo, _ mergeOptions) {
dst.v.Elem().Set(reflect.AppendSlice(dst.v.Elem(), src.v.Elem()))
}
var coderEnumSlice = pointerCoderFuncs{
size: sizeEnumSlice,
marshal: appendEnumSlice,
unmarshal: consumeEnumSlice,
merge: mergeEnumSlice,
}
func sizeEnumPackedSlice(p pointer, f *coderFieldInfo, opts marshalOptions) (size int) {
s := p.v.Elem()
llen := s.Len()
if llen == 0 {
return 0
}
n := 0
for i := 0; i < llen; i++ {
n += protowire.SizeVarint(uint64(s.Index(i).Int()))
}
return f.tagsize + protowire.SizeBytes(n)
}
func appendEnumPackedSlice(b []byte, p pointer, f *coderFieldInfo, opts marshalOptions) ([]byte, error) {
s := p.v.Elem()
llen := s.Len()
if llen == 0 {
return b, nil
}
b = protowire.AppendVarint(b, f.wiretag)
n := 0
for i := 0; i < llen; i++ {
n += protowire.SizeVarint(uint64(s.Index(i).Int()))
}
b = protowire.AppendVarint(b, uint64(n))
for i := 0; i < llen; i++ {
b = protowire.AppendVarint(b, uint64(s.Index(i).Int()))
}
return b, nil
}
var coderEnumPackedSlice = pointerCoderFuncs{
size: sizeEnumPackedSlice,
marshal: appendEnumPackedSlice,
unmarshal: consumeEnumSlice,
merge: mergeEnumSlice,
}
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