go.etcd.io/etcd@v3.3.27+incompatible/pkg/pbutil/pbutil.go (about) 1 // Copyright 2015 The etcd Authors 2 // 3 // Licensed under the Apache License, Version 2.0 (the "License"); 4 // you may not use this file except in compliance with the License. 5 // You may obtain a copy of the License at 6 // 7 // http://www.apache.org/licenses/LICENSE-2.0 8 // 9 // Unless required by applicable law or agreed to in writing, software 10 // distributed under the License is distributed on an "AS IS" BASIS, 11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 // See the License for the specific language governing permissions and 13 // limitations under the License. 14 15 // Package pbutil defines interfaces for handling Protocol Buffer objects. 16 package pbutil 17 18 import "github.com/coreos/pkg/capnslog" 19 20 var ( 21 plog = capnslog.NewPackageLogger("github.com/coreos/etcd", "pkg/pbutil") 22 ) 23 24 type Marshaler interface { 25 Marshal() (data []byte, err error) 26 } 27 28 type Unmarshaler interface { 29 Unmarshal(data []byte) error 30 } 31 32 func MustMarshal(m Marshaler) []byte { 33 d, err := m.Marshal() 34 if err != nil { 35 plog.Panicf("marshal should never fail (%v)", err) 36 } 37 return d 38 } 39 40 func MustUnmarshal(um Unmarshaler, data []byte) { 41 if err := um.Unmarshal(data); err != nil { 42 plog.Panicf("unmarshal should never fail (%v)", err) 43 } 44 } 45 46 func MaybeUnmarshal(um Unmarshaler, data []byte) bool { 47 if err := um.Unmarshal(data); err != nil { 48 return false 49 } 50 return true 51 } 52 53 func GetBool(v *bool) (vv bool, set bool) { 54 if v == nil { 55 return false, false 56 } 57 return *v, true 58 } 59 60 func Boolp(b bool) *bool { return &b }