You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
79 lines
2.3 KiB
79 lines
2.3 KiB
// Copyright 2015 Matt T. Proud
|
|
//
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
|
// you may not use this file except in compliance with the License.
|
|
// You may obtain a copy of the License at
|
|
//
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
|
|
package pbtest
|
|
|
|
import (
|
|
"errors"
|
|
"reflect"
|
|
|
|
"github.com/golang/protobuf/proto"
|
|
)
|
|
|
|
var (
|
|
errNotPointer = errors.New("pbtest: cannot sanitize non-pointer message")
|
|
errNotStruct = errors.New("pbtest: cannot sanitize non-struct message")
|
|
)
|
|
|
|
// SanitizeGenerated empties the private state fields of Protocol Buffer
|
|
// messages that have been generated by the testing/quick package or returns
|
|
// an error indicating a problem it encountered.
|
|
func SanitizeGenerated(m proto.Message) error {
|
|
return sanitizeGenerated(m, 0)
|
|
}
|
|
|
|
func sanitizeGenerated(m proto.Message, l int) error {
|
|
typ := reflect.TypeOf(m)
|
|
if typ.Kind() != reflect.Ptr {
|
|
if l == 0 {
|
|
// Changes cannot be applied to non-pointers.
|
|
return errNotPointer
|
|
}
|
|
return nil
|
|
}
|
|
if elemTyp := typ.Elem(); elemTyp.Kind() != reflect.Struct {
|
|
if l == 0 {
|
|
// Protocol Buffer messages are structures; only they can be cleaned.
|
|
return errNotStruct
|
|
}
|
|
return nil
|
|
}
|
|
elem := reflect.ValueOf(m).Elem()
|
|
for i := 0; i < elem.NumField(); i++ {
|
|
field := elem.Field(i)
|
|
if field.Type().Implements(reflect.TypeOf((*proto.Message)(nil)).Elem()) {
|
|
if err := sanitizeGenerated(field.Interface().(proto.Message), l+1); err != nil {
|
|
return err
|
|
}
|
|
}
|
|
if field.Kind() == reflect.Slice {
|
|
for i := 0; i < field.Len(); i++ {
|
|
elem := field.Index(i)
|
|
if elem.Type().Implements(reflect.TypeOf((*proto.Message)(nil)).Elem()) {
|
|
if err := sanitizeGenerated(elem.Interface().(proto.Message), l+1); err != nil {
|
|
return err
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
if field := elem.FieldByName("XXX_unrecognized"); field.IsValid() {
|
|
field.Set(reflect.ValueOf([]byte{}))
|
|
}
|
|
if field := elem.FieldByName("XXX_extensions"); field.IsValid() {
|
|
field.Set(reflect.ValueOf(nil))
|
|
}
|
|
return nil
|
|
}
|