1 # Copyright 2016 Google Inc. All rights reserved. 2 # 3 # Licensed under the Apache License, Version 2.0 (the "License"); 4 # you may not use this file except in compliance with the License. 5 # You may obtain a copy of the License at 6 # 7 # http://www.apache.org/licenses/LICENSE-2.0 8 # 9 # Unless required by applicable law or agreed to in writing, software 10 # distributed under the License is distributed on an "AS IS" BASIS, 11 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 # See the License for the specific language governing permissions and 13 # limitations under the License. 14 15 """ 16 Provide pre-compiled struct packers for encoding and decoding. 17 18 See: https://docs.python.org/2/library/struct.html#format-characters 19 """ 20 21 import struct 22 from . import compat 23 24 25 boolean = struct.Struct(compat.struct_bool_decl) 26 27 uint8 = struct.Struct("<B") 28 uint16 = struct.Struct("<H") 29 uint32 = struct.Struct("<I") 30 uint64 = struct.Struct("<Q") 31 32 int8 = struct.Struct("<b") 33 int16 = struct.Struct("<h") 34 int32 = struct.Struct("<i") 35 int64 = struct.Struct("<q") 36 37 float32 = struct.Struct("<f") 38 float64 = struct.Struct("<d") 39 40 uoffset = uint32 41 soffset = int32 42 voffset = uint16 43
