protobuf-go/reflect/protoreflect/value_pure.go
Joe Tsai bc534a98a5 all: add appengine build tag
The purego tag (see https://golang.org/issue/23172) is a community agreed
upon signal that a given build environment does not support unsafe.
The appengine environment is supposed to respect this tag, but does not
properly do so. Add this tag back in until they fix their environment.

Change-Id: I9a70062be4339c2e1a93cac31d387698c561b8aa
Reviewed-on: https://go-review.googlesource.com/c/154743
Reviewed-by: Damien Neil <dneil@google.com>
2018-12-19 00:36:57 +00:00

60 lines
1.2 KiB
Go

// 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 protoreflect
import "github.com/golang/protobuf/v2/internal/pragma"
type valueType int
const (
nilType valueType = iota
boolType
int32Type
int64Type
uint32Type
uint64Type
float32Type
float64Type
stringType
bytesType
enumType
ifaceType
)
// value is a union where only one type can be represented at a time.
// This uses a distinct field for each type. This is type safe in Go, but
// occupies more memory than necessary (72B).
type value struct {
pragma.DoNotCompare // 0B
typ valueType // 8B
num uint64 // 8B
str string // 16B
bin []byte // 24B
iface interface{} // 16B
}
func valueOfString(v string) Value {
return Value{typ: stringType, str: v}
}
func valueOfBytes(v []byte) Value {
return Value{typ: bytesType, bin: v}
}
func valueOfIface(v interface{}) Value {
return Value{typ: ifaceType, iface: v}
}
func (v Value) getString() string {
return v.str
}
func (v Value) getBytes() []byte {
return v.bin
}
func (v Value) getIface() interface{} {
return v.iface
}