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// Protocol Buffers for Go with Gadgets
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// Copyright (c) 2013, The GoGo Authors. All rights reserved.
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// http://github.com/gogo/protobuf
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are
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// * Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above
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// copyright notice, this list of conditions and the following disclaimer
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// in the documentation and/or other materials provided with the
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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func Skip(data []byte) (n int, err error) {
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for shift := uint(0); ; shift += 7 {
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return 0, io.ErrUnexpectedEOF
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wire |= (uint64(b) & 0x7F) << shift
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wireType := int(wire & 0x7)
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return 0, io.ErrUnexpectedEOF
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if data[index-1] < 0x80 {
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for shift := uint(0); ; shift += 7 {
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return 0, io.ErrUnexpectedEOF
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length |= (int(b) & 0x7F) << shift
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for shift := uint(0); ; shift += 7 {
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return 0, io.ErrUnexpectedEOF
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innerWire |= (uint64(b) & 0x7F) << shift
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innerWireType := int(innerWire & 0x7)
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if innerWireType == 4 {
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next, err := Skip(data[start:])
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return 0, fmt.Errorf("proto: illegal wireType %d", wireType)