Платформа ЦРНП "Мирокод" для разработки проектов
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88 lines
2.8 KiB
88 lines
2.8 KiB
// Copyright 2019 The Go Authors. All rights reserved. |
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// Use of this source code is governed by a BSD-style |
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// license that can be found in the LICENSE file. |
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package proto |
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import ( |
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"google.golang.org/protobuf/encoding/protowire" |
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"google.golang.org/protobuf/internal/encoding/messageset" |
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"google.golang.org/protobuf/internal/errors" |
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"google.golang.org/protobuf/internal/flags" |
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"google.golang.org/protobuf/reflect/protoreflect" |
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"google.golang.org/protobuf/reflect/protoregistry" |
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) |
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func (o MarshalOptions) sizeMessageSet(m protoreflect.Message) (size int) { |
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m.Range(func(fd protoreflect.FieldDescriptor, v protoreflect.Value) bool { |
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size += messageset.SizeField(fd.Number()) |
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size += protowire.SizeTag(messageset.FieldMessage) |
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size += protowire.SizeBytes(o.size(v.Message())) |
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return true |
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}) |
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size += messageset.SizeUnknown(m.GetUnknown()) |
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return size |
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} |
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func (o MarshalOptions) marshalMessageSet(b []byte, m protoreflect.Message) ([]byte, error) { |
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if !flags.ProtoLegacy { |
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return b, errors.New("no support for message_set_wire_format") |
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} |
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var err error |
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o.rangeFields(m, func(fd protoreflect.FieldDescriptor, v protoreflect.Value) bool { |
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b, err = o.marshalMessageSetField(b, fd, v) |
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return err == nil |
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}) |
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if err != nil { |
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return b, err |
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} |
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return messageset.AppendUnknown(b, m.GetUnknown()) |
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} |
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func (o MarshalOptions) marshalMessageSetField(b []byte, fd protoreflect.FieldDescriptor, value protoreflect.Value) ([]byte, error) { |
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b = messageset.AppendFieldStart(b, fd.Number()) |
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b = protowire.AppendTag(b, messageset.FieldMessage, protowire.BytesType) |
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b = protowire.AppendVarint(b, uint64(o.Size(value.Message().Interface()))) |
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b, err := o.marshalMessage(b, value.Message()) |
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if err != nil { |
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return b, err |
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} |
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b = messageset.AppendFieldEnd(b) |
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return b, nil |
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} |
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func (o UnmarshalOptions) unmarshalMessageSet(b []byte, m protoreflect.Message) error { |
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if !flags.ProtoLegacy { |
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return errors.New("no support for message_set_wire_format") |
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} |
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return messageset.Unmarshal(b, false, func(num protowire.Number, v []byte) error { |
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err := o.unmarshalMessageSetField(m, num, v) |
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if err == errUnknown { |
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unknown := m.GetUnknown() |
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unknown = protowire.AppendTag(unknown, num, protowire.BytesType) |
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unknown = protowire.AppendBytes(unknown, v) |
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m.SetUnknown(unknown) |
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return nil |
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} |
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return err |
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}) |
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} |
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func (o UnmarshalOptions) unmarshalMessageSetField(m protoreflect.Message, num protowire.Number, v []byte) error { |
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md := m.Descriptor() |
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if !md.ExtensionRanges().Has(num) { |
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return errUnknown |
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} |
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xt, err := o.Resolver.FindExtensionByNumber(md.FullName(), num) |
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if err == protoregistry.NotFound { |
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return errUnknown |
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} |
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if err != nil { |
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return errors.New("%v: unable to resolve extension %v: %v", md.FullName(), num, err) |
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} |
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xd := xt.TypeDescriptor() |
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if err := o.unmarshalMessage(v, m.Mutable(xd).Message()); err != nil { |
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return err |
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} |
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return nil |
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}
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