Mini Shell
--
--------------------------------------------------------------------------------
-- FILE: wire_format.lua
-- DESCRIPTION: protoc-gen-lua
-- Google's Protocol Buffers project, ported to lua.
-- https://code.google.com/p/protoc-gen-lua/
--
-- Copyright (c) 2010 , 林卓毅 (Zhuoyi Lin) netsnail@gmail.com
-- All rights reserved.
--
-- Use, modification and distribution are subject to the "New BSD License"
-- as listed at <url: http://www.opensource.org/licenses/bsd-license.php >.
-- COMPANY: NetEase
-- CREATED: 2010年07月30日 15时59分53秒 CST
--------------------------------------------------------------------------------
--
local pb = require "pb"
module "wire_format"
WIRETYPE_VARINT = 0
WIRETYPE_FIXED64 = 1
WIRETYPE_LENGTH_DELIMITED = 2
WIRETYPE_START_GROUP = 3
WIRETYPE_END_GROUP = 4
WIRETYPE_FIXED32 = 5
_WIRETYPE_MAX = 5
-- yeah, we don't need uint64
local function _VarUInt64ByteSizeNoTag(uint64)
if uint64 <= 0x7f then return 1 end
if uint64 <= 0x3fff then return 2 end
if uint64 <= 0x1fffff then return 3 end
if uint64 <= 0xfffffff then return 4 end
return 5
end
function PackTag(field_number, wire_type)
return field_number * 8 + wire_type
end
function UnpackTag(tag)
local wire_type = tag % 8
return (tag - wire_type) / 8, wire_type
end
ZigZagEncode32 = pb.zig_zag_encode32
ZigZagDecode32 = pb.zig_zag_decode32
ZigZagEncode64 = pb.zig_zag_encode64
ZigZagDecode64 = pb.zig_zag_decode64
function Int32ByteSize(field_number, int32)
return Int64ByteSize(field_number, int32)
end
function Int32ByteSizeNoTag(int32)
return _VarUInt64ByteSizeNoTag(int32)
end
function Int64ByteSize(field_number, int64)
return UInt64ByteSize(field_number, int64)
end
function UInt32ByteSize(field_number, uint32)
return UInt64ByteSize(field_number, uint32)
end
function UInt64ByteSize(field_number, uint64)
return TagByteSize(field_number) + _VarUInt64ByteSizeNoTag(uint64)
end
function SInt32ByteSize(field_number, int32)
return UInt32ByteSize(field_number, ZigZagEncode(int32))
end
function SInt64ByteSize(field_number, int64)
return UInt64ByteSize(field_number, ZigZagEncode(int64))
end
function Fixed32ByteSize(field_number, fixed32)
return TagByteSize(field_number) + 4
end
function Fixed64ByteSize(field_number, fixed64)
return TagByteSize(field_number) + 8
end
function SFixed32ByteSize(field_number, sfixed32)
return TagByteSize(field_number) + 4
end
function SFixed64ByteSize(field_number, sfixed64)
return TagByteSize(field_number) + 8
end
function FloatByteSize(field_number, flt)
return TagByteSize(field_number) + 4
end
function DoubleByteSize(field_number, double)
return TagByteSize(field_number) + 8
end
function BoolByteSize(field_number, b)
return TagByteSize(field_number) + 1
end
function EnumByteSize(field_number, enum)
return UInt32ByteSize(field_number, enum)
end
function StringByteSize(field_number, string)
return BytesByteSize(field_number, string)
end
function BytesByteSize(field_number, b)
return TagByteSize(field_number) + _VarUInt64ByteSizeNoTag(#b) + #b
end
function MessageByteSize(field_number, message)
return TagByteSize(field_number) + _VarUInt64ByteSizeNoTag(message.ByteSize()) + message.ByteSize()
end
function MessageSetItemByteSize(field_number, msg)
local total_size = 2 * TagByteSize(1) + TagByteSize(2) + TagByteSize(3)
total_size = total_size + _VarUInt64ByteSizeNoTag(field_number)
local message_size = msg.ByteSize()
total_size = total_size + _VarUInt64ByteSizeNoTag(message_size)
total_size = total_size + message_size
return total_size
end
function TagByteSize(field_number)
return _VarUInt64ByteSizeNoTag(PackTag(field_number, 0))
end
Zerion Mini Shell 1.0