diff options
Diffstat (limited to 'vendor/github.com/gogo/protobuf/proto/skip_gogo.go')
-rw-r--r-- | vendor/github.com/gogo/protobuf/proto/skip_gogo.go | 119 |
1 files changed, 119 insertions, 0 deletions
diff --git a/vendor/github.com/gogo/protobuf/proto/skip_gogo.go b/vendor/github.com/gogo/protobuf/proto/skip_gogo.go new file mode 100644 index 0000000000..5a5fd93f7c --- /dev/null +++ b/vendor/github.com/gogo/protobuf/proto/skip_gogo.go @@ -0,0 +1,119 @@ +// Protocol Buffers for Go with Gadgets +// +// Copyright (c) 2013, The GoGo Authors. 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 proto + +import ( + "fmt" + "io" +) + +func Skip(data []byte) (n int, err error) { + l := len(data) + index := 0 + for index < l { + var wire uint64 + for shift := uint(0); ; shift += 7 { + if index >= l { + return 0, io.ErrUnexpectedEOF + } + b := data[index] + index++ + wire |= (uint64(b) & 0x7F) << shift + if b < 0x80 { + break + } + } + wireType := int(wire & 0x7) + switch wireType { + case 0: + for { + if index >= l { + return 0, io.ErrUnexpectedEOF + } + index++ + if data[index-1] < 0x80 { + break + } + } + return index, nil + case 1: + index += 8 + return index, nil + case 2: + var length int + for shift := uint(0); ; shift += 7 { + if index >= l { + return 0, io.ErrUnexpectedEOF + } + b := data[index] + index++ + length |= (int(b) & 0x7F) << shift + if b < 0x80 { + break + } + } + index += length + return index, nil + case 3: + for { + var innerWire uint64 + var start int = index + for shift := uint(0); ; shift += 7 { + if index >= l { + return 0, io.ErrUnexpectedEOF + } + b := data[index] + index++ + innerWire |= (uint64(b) & 0x7F) << shift + if b < 0x80 { + break + } + } + innerWireType := int(innerWire & 0x7) + if innerWireType == 4 { + break + } + next, err := Skip(data[start:]) + if err != nil { + return 0, err + } + index = start + next + } + return index, nil + case 4: + return index, nil + case 5: + index += 4 + return index, nil + default: + return 0, fmt.Errorf("proto: illegal wireType %d", wireType) + } + } + panic("unreachable") +} |