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author | 2025-03-09 17:47:56 +0100 | |
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committer | 2025-03-10 01:59:49 +0100 | |
commit | 3ac1ee16f377d31a0fb80c8dae28b6239ac4229e (patch) | |
tree | f61faa581feaaeaba2542b9f2b8234a590684413 /vendor/google.golang.org/protobuf/internal/impl/decode.go | |
parent | [chore] update URLs to forked source (diff) | |
download | gotosocial-3ac1ee16f377d31a0fb80c8dae28b6239ac4229e.tar.xz |
[chore] remove vendor
Diffstat (limited to 'vendor/google.golang.org/protobuf/internal/impl/decode.go')
-rw-r--r-- | vendor/google.golang.org/protobuf/internal/impl/decode.go | 333 |
1 files changed, 0 insertions, 333 deletions
diff --git a/vendor/google.golang.org/protobuf/internal/impl/decode.go b/vendor/google.golang.org/protobuf/internal/impl/decode.go deleted file mode 100644 index e0dd21fa5..000000000 --- a/vendor/google.golang.org/protobuf/internal/impl/decode.go +++ /dev/null @@ -1,333 +0,0 @@ -// 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 ( - "math/bits" - - "google.golang.org/protobuf/encoding/protowire" - "google.golang.org/protobuf/internal/errors" - "google.golang.org/protobuf/internal/flags" - "google.golang.org/protobuf/proto" - "google.golang.org/protobuf/reflect/protoreflect" - "google.golang.org/protobuf/reflect/protoregistry" - "google.golang.org/protobuf/runtime/protoiface" -) - -var errDecode = errors.New("cannot parse invalid wire-format data") -var errRecursionDepth = errors.New("exceeded maximum recursion depth") - -type unmarshalOptions struct { - flags protoiface.UnmarshalInputFlags - resolver interface { - FindExtensionByName(field protoreflect.FullName) (protoreflect.ExtensionType, error) - FindExtensionByNumber(message protoreflect.FullName, field protoreflect.FieldNumber) (protoreflect.ExtensionType, error) - } - depth int -} - -func (o unmarshalOptions) Options() proto.UnmarshalOptions { - return proto.UnmarshalOptions{ - Merge: true, - AllowPartial: true, - DiscardUnknown: o.DiscardUnknown(), - Resolver: o.resolver, - - NoLazyDecoding: o.NoLazyDecoding(), - } -} - -func (o unmarshalOptions) DiscardUnknown() bool { - return o.flags&protoiface.UnmarshalDiscardUnknown != 0 -} - -func (o unmarshalOptions) AliasBuffer() bool { return o.flags&protoiface.UnmarshalAliasBuffer != 0 } -func (o unmarshalOptions) Validated() bool { return o.flags&protoiface.UnmarshalValidated != 0 } -func (o unmarshalOptions) NoLazyDecoding() bool { - return o.flags&protoiface.UnmarshalNoLazyDecoding != 0 -} - -func (o unmarshalOptions) CanBeLazy() bool { - if o.resolver != protoregistry.GlobalTypes { - return false - } - // We ignore the UnmarshalInvalidateSizeCache even though it's not in the default set - return (o.flags & ^(protoiface.UnmarshalAliasBuffer | protoiface.UnmarshalValidated | protoiface.UnmarshalCheckRequired)) == 0 -} - -var lazyUnmarshalOptions = unmarshalOptions{ - resolver: protoregistry.GlobalTypes, - - flags: protoiface.UnmarshalAliasBuffer | protoiface.UnmarshalValidated, - - depth: protowire.DefaultRecursionLimit, -} - -type unmarshalOutput struct { - n int // number of bytes consumed - initialized bool -} - -// unmarshal is protoreflect.Methods.Unmarshal. -func (mi *MessageInfo) unmarshal(in protoiface.UnmarshalInput) (protoiface.UnmarshalOutput, error) { - var p pointer - if ms, ok := in.Message.(*messageState); ok { - p = ms.pointer() - } else { - p = in.Message.(*messageReflectWrapper).pointer() - } - out, err := mi.unmarshalPointer(in.Buf, p, 0, unmarshalOptions{ - flags: in.Flags, - resolver: in.Resolver, - depth: in.Depth, - }) - var flags protoiface.UnmarshalOutputFlags - if out.initialized { - flags |= protoiface.UnmarshalInitialized - } - return protoiface.UnmarshalOutput{ - Flags: flags, - }, err -} - -// errUnknown is returned during unmarshaling to indicate a parse error that -// should result in a field being placed in the unknown fields section (for example, -// when the wire type doesn't match) as opposed to the entire unmarshal operation -// failing (for example, when a field extends past the available input). -// -// This is a sentinel error which should never be visible to the user. -var errUnknown = errors.New("unknown") - -func (mi *MessageInfo) unmarshalPointer(b []byte, p pointer, groupTag protowire.Number, opts unmarshalOptions) (out unmarshalOutput, err error) { - mi.init() - opts.depth-- - if opts.depth < 0 { - return out, errRecursionDepth - } - if flags.ProtoLegacy && mi.isMessageSet { - return unmarshalMessageSet(mi, b, p, opts) - } - - lazyDecoding := LazyEnabled() // default - if opts.NoLazyDecoding() { - lazyDecoding = false // explicitly disabled - } - if mi.lazyOffset.IsValid() && lazyDecoding { - return mi.unmarshalPointerLazy(b, p, groupTag, opts) - } - return mi.unmarshalPointerEager(b, p, groupTag, opts) -} - -// unmarshalPointerEager is the message unmarshalling function for all messages that are not lazy. -// The corresponding function for Lazy is in google_lazy.go. -func (mi *MessageInfo) unmarshalPointerEager(b []byte, p pointer, groupTag protowire.Number, opts unmarshalOptions) (out unmarshalOutput, err error) { - - initialized := true - var requiredMask uint64 - var exts *map[int32]ExtensionField - - var presence presence - if mi.presenceOffset.IsValid() { - presence = p.Apply(mi.presenceOffset).PresenceInfo() - } - - start := len(b) - for len(b) > 0 { - // Parse the tag (field number and wire type). - var tag uint64 - if b[0] < 0x80 { - tag = uint64(b[0]) - b = b[1:] - } else if len(b) >= 2 && b[1] < 128 { - tag = uint64(b[0]&0x7f) + uint64(b[1])<<7 - b = b[2:] - } else { - var n int - tag, n = protowire.ConsumeVarint(b) - if n < 0 { - return out, errDecode - } - b = b[n:] - } - var num protowire.Number - if n := tag >> 3; n < uint64(protowire.MinValidNumber) || n > uint64(protowire.MaxValidNumber) { - return out, errDecode - } else { - num = protowire.Number(n) - } - wtyp := protowire.Type(tag & 7) - - if wtyp == protowire.EndGroupType { - if num != groupTag { - return out, errDecode - } - groupTag = 0 - break - } - - var f *coderFieldInfo - if int(num) < len(mi.denseCoderFields) { - f = mi.denseCoderFields[num] - } else { - f = mi.coderFields[num] - } - var n int - err := errUnknown - switch { - case f != nil: - if f.funcs.unmarshal == nil { - break - } - var o unmarshalOutput - o, err = f.funcs.unmarshal(b, p.Apply(f.offset), wtyp, f, opts) - n = o.n - if err != nil { - break - } - requiredMask |= f.validation.requiredBit - if f.funcs.isInit != nil && !o.initialized { - initialized = false - } - - if f.presenceIndex != noPresence { - presence.SetPresentUnatomic(f.presenceIndex, mi.presenceSize) - } - - default: - // Possible extension. - if exts == nil && mi.extensionOffset.IsValid() { - exts = p.Apply(mi.extensionOffset).Extensions() - if *exts == nil { - *exts = make(map[int32]ExtensionField) - } - } - if exts == nil { - break - } - var o unmarshalOutput - o, err = mi.unmarshalExtension(b, num, wtyp, *exts, opts) - if err != nil { - break - } - n = o.n - if !o.initialized { - initialized = false - } - } - if err != nil { - if err != errUnknown { - return out, err - } - n = protowire.ConsumeFieldValue(num, wtyp, b) - if n < 0 { - return out, errDecode - } - if !opts.DiscardUnknown() && mi.unknownOffset.IsValid() { - u := mi.mutableUnknownBytes(p) - *u = protowire.AppendTag(*u, num, wtyp) - *u = append(*u, b[:n]...) - } - } - b = b[n:] - } - if groupTag != 0 { - return out, errDecode - } - if mi.numRequiredFields > 0 && bits.OnesCount64(requiredMask) != int(mi.numRequiredFields) { - initialized = false - } - if initialized { - out.initialized = true - } - out.n = start - len(b) - return out, nil -} - -func (mi *MessageInfo) unmarshalExtension(b []byte, num protowire.Number, wtyp protowire.Type, exts map[int32]ExtensionField, opts unmarshalOptions) (out unmarshalOutput, err error) { - x := exts[int32(num)] - xt := x.Type() - if xt == nil { - var err error - xt, err = opts.resolver.FindExtensionByNumber(mi.Desc.FullName(), num) - if err != nil { - if err == protoregistry.NotFound { - return out, errUnknown - } - return out, errors.New("%v: unable to resolve extension %v: %v", mi.Desc.FullName(), num, err) - } - } - xi := getExtensionFieldInfo(xt) - if xi.funcs.unmarshal == nil { - return out, errUnknown - } - if flags.LazyUnmarshalExtensions { - if opts.CanBeLazy() && x.canLazy(xt) { - out, valid := skipExtension(b, xi, num, wtyp, opts) - switch valid { - case ValidationValid: - if out.initialized { - x.appendLazyBytes(xt, xi, num, wtyp, b[:out.n]) - exts[int32(num)] = x - return out, nil - } - case ValidationInvalid: - return out, errDecode - case ValidationUnknown: - } - } - } - ival := x.Value() - if !ival.IsValid() && xi.unmarshalNeedsValue { - // Create a new message, list, or map value to fill in. - // For enums, create a prototype value to let the unmarshal func know the - // concrete type. - ival = xt.New() - } - v, out, err := xi.funcs.unmarshal(b, ival, num, wtyp, opts) - if err != nil { - return out, err - } - if xi.funcs.isInit == nil { - out.initialized = true - } - x.Set(xt, v) - exts[int32(num)] = x - return out, nil -} - -func skipExtension(b []byte, xi *extensionFieldInfo, num protowire.Number, wtyp protowire.Type, opts unmarshalOptions) (out unmarshalOutput, _ ValidationStatus) { - if xi.validation.mi == nil { - return out, ValidationUnknown - } - xi.validation.mi.init() - switch xi.validation.typ { - case validationTypeMessage: - if wtyp != protowire.BytesType { - return out, ValidationUnknown - } - v, n := protowire.ConsumeBytes(b) - if n < 0 { - return out, ValidationUnknown - } - - if opts.Validated() { - out.initialized = true - out.n = n - return out, ValidationValid - } - - out, st := xi.validation.mi.validate(v, 0, opts) - out.n = n - return out, st - case validationTypeGroup: - if wtyp != protowire.StartGroupType { - return out, ValidationUnknown - } - out, st := xi.validation.mi.validate(b, num, opts) - return out, st - default: - return out, ValidationUnknown - } -} |