syncthing/vendor/github.com/gogo/protobuf/vanity/enum.go
Jakob Borg 93a04158fd vendor: Update github.com/gogo/protobuf, keeping all files
gvt fetch -a, because we need the protobuf files etc for regeneration
2017-06-14 05:24:09 +02:00

79 lines
2.7 KiB
Go

// Protocol Buffers for Go with Gadgets
//
// Copyright (c) 2015, The GoGo Authors. rights reserved.
// http://github.com/gogo/protobuf
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
package vanity
import (
"github.com/gogo/protobuf/gogoproto"
"github.com/gogo/protobuf/proto"
descriptor "github.com/gogo/protobuf/protoc-gen-gogo/descriptor"
)
func EnumHasBoolExtension(enum *descriptor.EnumDescriptorProto, extension *proto.ExtensionDesc) bool {
if enum.Options == nil {
return false
}
value, err := proto.GetExtension(enum.Options, extension)
if err != nil {
return false
}
if value == nil {
return false
}
if value.(*bool) == nil {
return false
}
return true
}
func SetBoolEnumOption(extension *proto.ExtensionDesc, value bool) func(enum *descriptor.EnumDescriptorProto) {
return func(enum *descriptor.EnumDescriptorProto) {
if EnumHasBoolExtension(enum, extension) {
return
}
if enum.Options == nil {
enum.Options = &descriptor.EnumOptions{}
}
if err := proto.SetExtension(enum.Options, extension, &value); err != nil {
panic(err)
}
}
}
func TurnOffGoEnumPrefix(enum *descriptor.EnumDescriptorProto) {
SetBoolEnumOption(gogoproto.E_GoprotoEnumPrefix, false)(enum)
}
func TurnOffGoEnumStringer(enum *descriptor.EnumDescriptorProto) {
SetBoolEnumOption(gogoproto.E_GoprotoEnumStringer, false)(enum)
}
func TurnOnEnumStringer(enum *descriptor.EnumDescriptorProto) {
SetBoolEnumOption(gogoproto.E_EnumStringer, true)(enum)
}