diff options
Diffstat (limited to 'vendor/google.golang.org/protobuf/internal/impl/legacy_export.go')
-rw-r--r-- | vendor/google.golang.org/protobuf/internal/impl/legacy_export.go | 92 |
1 files changed, 0 insertions, 92 deletions
diff --git a/vendor/google.golang.org/protobuf/internal/impl/legacy_export.go b/vendor/google.golang.org/protobuf/internal/impl/legacy_export.go deleted file mode 100644 index 9b64ad5bb..000000000 --- a/vendor/google.golang.org/protobuf/internal/impl/legacy_export.go +++ /dev/null @@ -1,92 +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 ( - "encoding/binary" - "encoding/json" - "hash/crc32" - "math" - "reflect" - - "google.golang.org/protobuf/internal/errors" - "google.golang.org/protobuf/reflect/protoreflect" - "google.golang.org/protobuf/runtime/protoiface" -) - -// These functions exist to support exported APIs in generated protobufs. -// While these are deprecated, they cannot be removed for compatibility reasons. - -// LegacyEnumName returns the name of enums used in legacy code. -func (Export) LegacyEnumName(ed protoreflect.EnumDescriptor) string { - return legacyEnumName(ed) -} - -// LegacyMessageTypeOf returns the protoreflect.MessageType for m, -// with name used as the message name if necessary. -func (Export) LegacyMessageTypeOf(m protoiface.MessageV1, name protoreflect.FullName) protoreflect.MessageType { - if mv := (Export{}).protoMessageV2Of(m); mv != nil { - return mv.ProtoReflect().Type() - } - return legacyLoadMessageType(reflect.TypeOf(m), name) -} - -// UnmarshalJSONEnum unmarshals an enum from a JSON-encoded input. -// The input can either be a string representing the enum value by name, -// or a number representing the enum number itself. -func (Export) UnmarshalJSONEnum(ed protoreflect.EnumDescriptor, b []byte) (protoreflect.EnumNumber, error) { - if b[0] == '"' { - var name protoreflect.Name - if err := json.Unmarshal(b, &name); err != nil { - return 0, errors.New("invalid input for enum %v: %s", ed.FullName(), b) - } - ev := ed.Values().ByName(name) - if ev == nil { - return 0, errors.New("invalid value for enum %v: %s", ed.FullName(), name) - } - return ev.Number(), nil - } else { - var num protoreflect.EnumNumber - if err := json.Unmarshal(b, &num); err != nil { - return 0, errors.New("invalid input for enum %v: %s", ed.FullName(), b) - } - return num, nil - } -} - -// CompressGZIP compresses the input as a GZIP-encoded file. -// The current implementation does no compression. -func (Export) CompressGZIP(in []byte) (out []byte) { - // RFC 1952, section 2.3.1. - var gzipHeader = [10]byte{0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff} - - // RFC 1951, section 3.2.4. - var blockHeader [5]byte - const maxBlockSize = math.MaxUint16 - numBlocks := 1 + len(in)/maxBlockSize - - // RFC 1952, section 2.3.1. - var gzipFooter [8]byte - binary.LittleEndian.PutUint32(gzipFooter[0:4], crc32.ChecksumIEEE(in)) - binary.LittleEndian.PutUint32(gzipFooter[4:8], uint32(len(in))) - - // Encode the input without compression using raw DEFLATE blocks. - out = make([]byte, 0, len(gzipHeader)+len(blockHeader)*numBlocks+len(in)+len(gzipFooter)) - out = append(out, gzipHeader[:]...) - for blockHeader[0] == 0 { - blockSize := maxBlockSize - if blockSize > len(in) { - blockHeader[0] = 0x01 // final bit per RFC 1951, section 3.2.3. - blockSize = len(in) - } - binary.LittleEndian.PutUint16(blockHeader[1:3], uint16(blockSize)) - binary.LittleEndian.PutUint16(blockHeader[3:5], ^uint16(blockSize)) - out = append(out, blockHeader[:]...) - out = append(out, in[:blockSize]...) - in = in[blockSize:] - } - out = append(out, gzipFooter[:]...) - return out -} |