356 lines
9.7 KiB
Go
356 lines
9.7 KiB
Go
|
// Copyright (c) 2013, Vastech SA (PTY) LTD. All 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 descriptor
|
||
|
|
|
||
|
|
import (
|
||
|
|
"strings"
|
||
|
|
)
|
||
|
|
|
||
|
|
func (msg *DescriptorProto) GetMapFields() (*FieldDescriptorProto, *FieldDescriptorProto) {
|
||
|
|
if !msg.GetOptions().GetMapEntry() {
|
||
|
|
return nil, nil
|
||
|
|
}
|
||
|
|
return msg.GetField()[0], msg.GetField()[1]
|
||
|
|
}
|
||
|
|
|
||
|
|
func dotToUnderscore(r rune) rune {
|
||
|
|
if r == '.' {
|
||
|
|
return '_'
|
||
|
|
}
|
||
|
|
return r
|
||
|
|
}
|
||
|
|
|
||
|
|
func (field *FieldDescriptorProto) WireType() (wire int) {
|
||
|
|
switch *field.Type {
|
||
|
|
case FieldDescriptorProto_TYPE_DOUBLE:
|
||
|
|
return 1
|
||
|
|
case FieldDescriptorProto_TYPE_FLOAT:
|
||
|
|
return 5
|
||
|
|
case FieldDescriptorProto_TYPE_INT64:
|
||
|
|
return 0
|
||
|
|
case FieldDescriptorProto_TYPE_UINT64:
|
||
|
|
return 0
|
||
|
|
case FieldDescriptorProto_TYPE_INT32:
|
||
|
|
return 0
|
||
|
|
case FieldDescriptorProto_TYPE_UINT32:
|
||
|
|
return 0
|
||
|
|
case FieldDescriptorProto_TYPE_FIXED64:
|
||
|
|
return 1
|
||
|
|
case FieldDescriptorProto_TYPE_FIXED32:
|
||
|
|
return 5
|
||
|
|
case FieldDescriptorProto_TYPE_BOOL:
|
||
|
|
return 0
|
||
|
|
case FieldDescriptorProto_TYPE_STRING:
|
||
|
|
return 2
|
||
|
|
case FieldDescriptorProto_TYPE_GROUP:
|
||
|
|
return 2
|
||
|
|
case FieldDescriptorProto_TYPE_MESSAGE:
|
||
|
|
return 2
|
||
|
|
case FieldDescriptorProto_TYPE_BYTES:
|
||
|
|
return 2
|
||
|
|
case FieldDescriptorProto_TYPE_ENUM:
|
||
|
|
return 0
|
||
|
|
case FieldDescriptorProto_TYPE_SFIXED32:
|
||
|
|
return 5
|
||
|
|
case FieldDescriptorProto_TYPE_SFIXED64:
|
||
|
|
return 1
|
||
|
|
case FieldDescriptorProto_TYPE_SINT32:
|
||
|
|
return 0
|
||
|
|
case FieldDescriptorProto_TYPE_SINT64:
|
||
|
|
return 0
|
||
|
|
}
|
||
|
|
panic("unreachable")
|
||
|
|
}
|
||
|
|
|
||
|
|
func (field *FieldDescriptorProto) GetKeyUint64() (x uint64) {
|
||
|
|
packed := field.IsPacked()
|
||
|
|
wireType := field.WireType()
|
||
|
|
fieldNumber := field.GetNumber()
|
||
|
|
if packed {
|
||
|
|
wireType = 2
|
||
|
|
}
|
||
|
|
x = uint64(uint32(fieldNumber)<<3 | uint32(wireType))
|
||
|
|
return x
|
||
|
|
}
|
||
|
|
|
||
|
|
func (field *FieldDescriptorProto) GetKey() []byte {
|
||
|
|
x := field.GetKeyUint64()
|
||
|
|
i := 0
|
||
|
|
keybuf := make([]byte, 0)
|
||
|
|
for i = 0; x > 127; i++ {
|
||
|
|
keybuf = append(keybuf, 0x80|uint8(x&0x7F))
|
||
|
|
x >>= 7
|
||
|
|
}
|
||
|
|
keybuf = append(keybuf, uint8(x))
|
||
|
|
return keybuf
|
||
|
|
}
|
||
|
|
|
||
|
|
func (desc *FileDescriptorSet) GetField(packageName, messageName, fieldName string) *FieldDescriptorProto {
|
||
|
|
msg := desc.GetMessage(packageName, messageName)
|
||
|
|
if msg == nil {
|
||
|
|
return nil
|
||
|
|
}
|
||
|
|
for _, field := range msg.GetField() {
|
||
|
|
if field.GetName() == fieldName {
|
||
|
|
return field
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return nil
|
||
|
|
}
|
||
|
|
|
||
|
|
func (file *FileDescriptorProto) GetMessage(typeName string) *DescriptorProto {
|
||
|
|
for _, msg := range file.GetMessageType() {
|
||
|
|
if msg.GetName() == typeName {
|
||
|
|
return msg
|
||
|
|
}
|
||
|
|
nes := file.GetNestedMessage(msg, strings.TrimPrefix(typeName, msg.GetName()+"."))
|
||
|
|
if nes != nil {
|
||
|
|
return nes
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return nil
|
||
|
|
}
|
||
|
|
|
||
|
|
func (file *FileDescriptorProto) GetNestedMessage(msg *DescriptorProto, typeName string) *DescriptorProto {
|
||
|
|
for _, nes := range msg.GetNestedType() {
|
||
|
|
if nes.GetName() == typeName {
|
||
|
|
return nes
|
||
|
|
}
|
||
|
|
res := file.GetNestedMessage(nes, strings.TrimPrefix(typeName, nes.GetName()+"."))
|
||
|
|
if res != nil {
|
||
|
|
return res
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return nil
|
||
|
|
}
|
||
|
|
|
||
|
|
func (desc *FileDescriptorSet) GetMessage(packageName string, typeName string) *DescriptorProto {
|
||
|
|
for _, file := range desc.GetFile() {
|
||
|
|
if strings.Map(dotToUnderscore, file.GetPackage()) != strings.Map(dotToUnderscore, packageName) {
|
||
|
|
continue
|
||
|
|
}
|
||
|
|
for _, msg := range file.GetMessageType() {
|
||
|
|
if msg.GetName() == typeName {
|
||
|
|
return msg
|
||
|
|
}
|
||
|
|
}
|
||
|
|
for _, msg := range file.GetMessageType() {
|
||
|
|
for _, nes := range msg.GetNestedType() {
|
||
|
|
if nes.GetName() == typeName {
|
||
|
|
return nes
|
||
|
|
}
|
||
|
|
if msg.GetName()+"."+nes.GetName() == typeName {
|
||
|
|
return nes
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return nil
|
||
|
|
}
|
||
|
|
|
||
|
|
func (desc *FileDescriptorSet) IsProto3(packageName string, typeName string) bool {
|
||
|
|
for _, file := range desc.GetFile() {
|
||
|
|
if strings.Map(dotToUnderscore, file.GetPackage()) != strings.Map(dotToUnderscore, packageName) {
|
||
|
|
continue
|
||
|
|
}
|
||
|
|
for _, msg := range file.GetMessageType() {
|
||
|
|
if msg.GetName() == typeName {
|
||
|
|
return file.GetSyntax() == "proto3"
|
||
|
|
}
|
||
|
|
}
|
||
|
|
for _, msg := range file.GetMessageType() {
|
||
|
|
for _, nes := range msg.GetNestedType() {
|
||
|
|
if nes.GetName() == typeName {
|
||
|
|
return file.GetSyntax() == "proto3"
|
||
|
|
}
|
||
|
|
if msg.GetName()+"."+nes.GetName() == typeName {
|
||
|
|
return file.GetSyntax() == "proto3"
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return false
|
||
|
|
}
|
||
|
|
|
||
|
|
func (msg *DescriptorProto) IsExtendable() bool {
|
||
|
|
return len(msg.GetExtensionRange()) > 0
|
||
|
|
}
|
||
|
|
|
||
|
|
func (desc *FileDescriptorSet) FindExtension(packageName string, typeName string, fieldName string) (extPackageName string, field *FieldDescriptorProto) {
|
||
|
|
parent := desc.GetMessage(packageName, typeName)
|
||
|
|
if parent == nil {
|
||
|
|
return "", nil
|
||
|
|
}
|
||
|
|
if !parent.IsExtendable() {
|
||
|
|
return "", nil
|
||
|
|
}
|
||
|
|
extendee := "." + packageName + "." + typeName
|
||
|
|
for _, file := range desc.GetFile() {
|
||
|
|
for _, ext := range file.GetExtension() {
|
||
|
|
if strings.Map(dotToUnderscore, file.GetPackage()) == strings.Map(dotToUnderscore, packageName) {
|
||
|
|
if !(ext.GetExtendee() == typeName || ext.GetExtendee() == extendee) {
|
||
|
|
continue
|
||
|
|
}
|
||
|
|
} else {
|
||
|
|
if ext.GetExtendee() != extendee {
|
||
|
|
continue
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if ext.GetName() == fieldName {
|
||
|
|
return file.GetPackage(), ext
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return "", nil
|
||
|
|
}
|
||
|
|
|
||
|
|
func (desc *FileDescriptorSet) FindExtensionByFieldNumber(packageName string, typeName string, fieldNum int32) (extPackageName string, field *FieldDescriptorProto) {
|
||
|
|
parent := desc.GetMessage(packageName, typeName)
|
||
|
|
if parent == nil {
|
||
|
|
return "", nil
|
||
|
|
}
|
||
|
|
if !parent.IsExtendable() {
|
||
|
|
return "", nil
|
||
|
|
}
|
||
|
|
extendee := "." + packageName + "." + typeName
|
||
|
|
for _, file := range desc.GetFile() {
|
||
|
|
for _, ext := range file.GetExtension() {
|
||
|
|
if strings.Map(dotToUnderscore, file.GetPackage()) == strings.Map(dotToUnderscore, packageName) {
|
||
|
|
if !(ext.GetExtendee() == typeName || ext.GetExtendee() == extendee) {
|
||
|
|
continue
|
||
|
|
}
|
||
|
|
} else {
|
||
|
|
if ext.GetExtendee() != extendee {
|
||
|
|
continue
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if ext.GetNumber() == fieldNum {
|
||
|
|
return file.GetPackage(), ext
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return "", nil
|
||
|
|
}
|
||
|
|
|
||
|
|
func (desc *FileDescriptorSet) FindMessage(packageName string, typeName string, fieldName string) (msgPackageName string, msgName string) {
|
||
|
|
parent := desc.GetMessage(packageName, typeName)
|
||
|
|
if parent == nil {
|
||
|
|
return "", ""
|
||
|
|
}
|
||
|
|
field := parent.GetFieldDescriptor(fieldName)
|
||
|
|
if field == nil {
|
||
|
|
var extPackageName string
|
||
|
|
extPackageName, field = desc.FindExtension(packageName, typeName, fieldName)
|
||
|
|
if field == nil {
|
||
|
|
return "", ""
|
||
|
|
}
|
||
|
|
packageName = extPackageName
|
||
|
|
}
|
||
|
|
typeNames := strings.Split(field.GetTypeName(), ".")
|
||
|
|
if len(typeNames) == 1 {
|
||
|
|
msg := desc.GetMessage(packageName, typeName)
|
||
|
|
if msg == nil {
|
||
|
|
return "", ""
|
||
|
|
}
|
||
|
|
return packageName, msg.GetName()
|
||
|
|
}
|
||
|
|
if len(typeNames) > 2 {
|
||
|
|
for i := 1; i < len(typeNames)-1; i++ {
|
||
|
|
packageName = strings.Join(typeNames[1:len(typeNames)-i], ".")
|
||
|
|
typeName = strings.Join(typeNames[len(typeNames)-i:], ".")
|
||
|
|
msg := desc.GetMessage(packageName, typeName)
|
||
|
|
if msg != nil {
|
||
|
|
typeNames := strings.Split(msg.GetName(), ".")
|
||
|
|
if len(typeNames) == 1 {
|
||
|
|
return packageName, msg.GetName()
|
||
|
|
}
|
||
|
|
return strings.Join(typeNames[1:len(typeNames)-1], "."), typeNames[len(typeNames)-1]
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return "", ""
|
||
|
|
}
|
||
|
|
|
||
|
|
func (msg *DescriptorProto) GetFieldDescriptor(fieldName string) *FieldDescriptorProto {
|
||
|
|
for _, field := range msg.GetField() {
|
||
|
|
if field.GetName() == fieldName {
|
||
|
|
return field
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return nil
|
||
|
|
}
|
||
|
|
|
||
|
|
func (desc *FileDescriptorSet) GetEnum(packageName string, typeName string) *EnumDescriptorProto {
|
||
|
|
for _, file := range desc.GetFile() {
|
||
|
|
if strings.Map(dotToUnderscore, file.GetPackage()) != strings.Map(dotToUnderscore, packageName) {
|
||
|
|
continue
|
||
|
|
}
|
||
|
|
for _, enum := range file.GetEnumType() {
|
||
|
|
if enum.GetName() == typeName {
|
||
|
|
return enum
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return nil
|
||
|
|
}
|
||
|
|
|
||
|
|
func (f *FieldDescriptorProto) IsEnum() bool {
|
||
|
|
return *f.Type == FieldDescriptorProto_TYPE_ENUM
|
||
|
|
}
|
||
|
|
|
||
|
|
func (f *FieldDescriptorProto) IsMessage() bool {
|
||
|
|
return *f.Type == FieldDescriptorProto_TYPE_MESSAGE
|
||
|
|
}
|
||
|
|
|
||
|
|
func (f *FieldDescriptorProto) IsBytes() bool {
|
||
|
|
return *f.Type == FieldDescriptorProto_TYPE_BYTES
|
||
|
|
}
|
||
|
|
|
||
|
|
func (f *FieldDescriptorProto) IsRepeated() bool {
|
||
|
|
return f.Label != nil && *f.Label == FieldDescriptorProto_LABEL_REPEATED
|
||
|
|
}
|
||
|
|
|
||
|
|
func (f *FieldDescriptorProto) IsString() bool {
|
||
|
|
return *f.Type == FieldDescriptorProto_TYPE_STRING
|
||
|
|
}
|
||
|
|
|
||
|
|
func (f *FieldDescriptorProto) IsBool() bool {
|
||
|
|
return *f.Type == FieldDescriptorProto_TYPE_BOOL
|
||
|
|
}
|
||
|
|
|
||
|
|
func (f *FieldDescriptorProto) IsRequired() bool {
|
||
|
|
return f.Label != nil && *f.Label == FieldDescriptorProto_LABEL_REQUIRED
|
||
|
|
}
|
||
|
|
|
||
|
|
func (f *FieldDescriptorProto) IsPacked() bool {
|
||
|
|
return f.Options != nil && f.GetOptions().GetPacked()
|
||
|
|
}
|
||
|
|
|
||
|
|
func (m *DescriptorProto) HasExtension() bool {
|
||
|
|
return len(m.ExtensionRange) > 0
|
||
|
|
}
|