value_pure.go

Documentation: google.golang.org/protobuf/reflect/protoreflect

     1  // Copyright 2018 The Go Authors. All rights reserved.
     2  // Use of this source code is governed by a BSD-style
     3  // license that can be found in the LICENSE file.
     4  
     5  //go:build purego || appengine
     6  // +build purego appengine
     7  
     8  package protoreflect
     9  
    10  import "google.golang.org/protobuf/internal/pragma"
    11  
    12  type valueType int
    13  
    14  const (
    15  	nilType valueType = iota
    16  	boolType
    17  	int32Type
    18  	int64Type
    19  	uint32Type
    20  	uint64Type
    21  	float32Type
    22  	float64Type
    23  	stringType
    24  	bytesType
    25  	enumType
    26  	ifaceType
    27  )
    28  
    29  // value is a union where only one type can be represented at a time.
    30  // This uses a distinct field for each type. This is type safe in Go, but
    31  // occupies more memory than necessary (72B).
    32  type value struct {
    33  	pragma.DoNotCompare // 0B
    34  
    35  	typ   valueType   // 8B
    36  	num   uint64      // 8B
    37  	str   string      // 16B
    38  	bin   []byte      // 24B
    39  	iface interface{} // 16B
    40  }
    41  
    42  func valueOfString(v string) Value {
    43  	return Value{typ: stringType, str: v}
    44  }
    45  func valueOfBytes(v []byte) Value {
    46  	return Value{typ: bytesType, bin: v}
    47  }
    48  func valueOfIface(v interface{}) Value {
    49  	return Value{typ: ifaceType, iface: v}
    50  }
    51  
    52  func (v Value) getString() string {
    53  	return v.str
    54  }
    55  func (v Value) getBytes() []byte {
    56  	return v.bin
    57  }
    58  func (v Value) getIface() interface{} {
    59  	return v.iface
    60  }
    61
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