From 4e50fd864921c556988c919269448efdb90fa961 Mon Sep 17 00:00:00 2001 From: Wim Date: Mon, 10 Aug 2020 00:29:54 +0200 Subject: Use mattermost v5 module (#1192) --- .../protobuf/internal/impl/codec_message.go | 159 +++++++++++++++++++++ 1 file changed, 159 insertions(+) create mode 100644 vendor/google.golang.org/protobuf/internal/impl/codec_message.go (limited to 'vendor/google.golang.org/protobuf/internal/impl/codec_message.go') diff --git a/vendor/google.golang.org/protobuf/internal/impl/codec_message.go b/vendor/google.golang.org/protobuf/internal/impl/codec_message.go new file mode 100644 index 00000000..0e176d56 --- /dev/null +++ b/vendor/google.golang.org/protobuf/internal/impl/codec_message.go @@ -0,0 +1,159 @@ +// Copyright 2019 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +package impl + +import ( + "fmt" + "reflect" + "sort" + + "google.golang.org/protobuf/encoding/protowire" + "google.golang.org/protobuf/internal/encoding/messageset" + "google.golang.org/protobuf/internal/fieldsort" + pref "google.golang.org/protobuf/reflect/protoreflect" + piface "google.golang.org/protobuf/runtime/protoiface" +) + +// coderMessageInfo contains per-message information used by the fast-path functions. +// This is a different type from MessageInfo to keep MessageInfo as general-purpose as +// possible. +type coderMessageInfo struct { + methods piface.Methods + + orderedCoderFields []*coderFieldInfo + denseCoderFields []*coderFieldInfo + coderFields map[protowire.Number]*coderFieldInfo + sizecacheOffset offset + unknownOffset offset + extensionOffset offset + needsInitCheck bool + isMessageSet bool + numRequiredFields uint8 +} + +type coderFieldInfo struct { + funcs pointerCoderFuncs // fast-path per-field functions + mi *MessageInfo // field's message + ft reflect.Type + validation validationInfo // information used by message validation + num pref.FieldNumber // field number + offset offset // struct field offset + wiretag uint64 // field tag (number + wire type) + tagsize int // size of the varint-encoded tag + isPointer bool // true if IsNil may be called on the struct field + isRequired bool // true if field is required +} + +func (mi *MessageInfo) makeCoderMethods(t reflect.Type, si structInfo) { + mi.sizecacheOffset = si.sizecacheOffset + mi.unknownOffset = si.unknownOffset + mi.extensionOffset = si.extensionOffset + + mi.coderFields = make(map[protowire.Number]*coderFieldInfo) + fields := mi.Desc.Fields() + preallocFields := make([]coderFieldInfo, fields.Len()) + for i := 0; i < fields.Len(); i++ { + fd := fields.Get(i) + + fs := si.fieldsByNumber[fd.Number()] + isOneof := fd.ContainingOneof() != nil && !fd.ContainingOneof().IsSynthetic() + if isOneof { + fs = si.oneofsByName[fd.ContainingOneof().Name()] + } + ft := fs.Type + var wiretag uint64 + if !fd.IsPacked() { + wiretag = protowire.EncodeTag(fd.Number(), wireTypes[fd.Kind()]) + } else { + wiretag = protowire.EncodeTag(fd.Number(), protowire.BytesType) + } + var fieldOffset offset + var funcs pointerCoderFuncs + var childMessage *MessageInfo + switch { + case isOneof: + fieldOffset = offsetOf(fs, mi.Exporter) + case fd.IsWeak(): + fieldOffset = si.weakOffset + funcs = makeWeakMessageFieldCoder(fd) + default: + fieldOffset = offsetOf(fs, mi.Exporter) + childMessage, funcs = fieldCoder(fd, ft) + } + cf := &preallocFields[i] + *cf = coderFieldInfo{ + num: fd.Number(), + offset: fieldOffset, + wiretag: wiretag, + ft: ft, + tagsize: protowire.SizeVarint(wiretag), + funcs: funcs, + mi: childMessage, + validation: newFieldValidationInfo(mi, si, fd, ft), + isPointer: fd.Cardinality() == pref.Repeated || fd.HasPresence(), + isRequired: fd.Cardinality() == pref.Required, + } + mi.orderedCoderFields = append(mi.orderedCoderFields, cf) + mi.coderFields[cf.num] = cf + } + for i, oneofs := 0, mi.Desc.Oneofs(); i < oneofs.Len(); i++ { + if od := oneofs.Get(i); !od.IsSynthetic() { + mi.initOneofFieldCoders(od, si) + } + } + if messageset.IsMessageSet(mi.Desc) { + if !mi.extensionOffset.IsValid() { + panic(fmt.Sprintf("%v: MessageSet with no extensions field", mi.Desc.FullName())) + } + if !mi.unknownOffset.IsValid() { + panic(fmt.Sprintf("%v: MessageSet with no unknown field", mi.Desc.FullName())) + } + mi.isMessageSet = true + } + sort.Slice(mi.orderedCoderFields, func(i, j int) bool { + return mi.orderedCoderFields[i].num < mi.orderedCoderFields[j].num + }) + + var maxDense pref.FieldNumber + for _, cf := range mi.orderedCoderFields { + if cf.num >= 16 && cf.num >= 2*maxDense { + break + } + maxDense = cf.num + } + mi.denseCoderFields = make([]*coderFieldInfo, maxDense+1) + for _, cf := range mi.orderedCoderFields { + if int(cf.num) >= len(mi.denseCoderFields) { + break + } + mi.denseCoderFields[cf.num] = cf + } + + // To preserve compatibility with historic wire output, marshal oneofs last. + if mi.Desc.Oneofs().Len() > 0 { + sort.Slice(mi.orderedCoderFields, func(i, j int) bool { + fi := fields.ByNumber(mi.orderedCoderFields[i].num) + fj := fields.ByNumber(mi.orderedCoderFields[j].num) + return fieldsort.Less(fi, fj) + }) + } + + mi.needsInitCheck = needsInitCheck(mi.Desc) + if mi.methods.Marshal == nil && mi.methods.Size == nil { + mi.methods.Flags |= piface.SupportMarshalDeterministic + mi.methods.Marshal = mi.marshal + mi.methods.Size = mi.size + } + if mi.methods.Unmarshal == nil { + mi.methods.Flags |= piface.SupportUnmarshalDiscardUnknown + mi.methods.Unmarshal = mi.unmarshal + } + if mi.methods.CheckInitialized == nil { + mi.methods.CheckInitialized = mi.checkInitialized + } + if mi.methods.Merge == nil { + mi.methods.Merge = mi.merge + } +} -- cgit v1.2.3