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Side by Side Diff: third_party/protobuf26/internal/decoder.py

Issue 1162993005: Renamed google.protobuf to protobuf26 (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/tools/depot_tools
Patch Set: Addressed comments Created 5 years, 6 months ago
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1 # Protocol Buffers - Google's data interchange format 1 # Protocol Buffers - Google's data interchange format
2 # Copyright 2008 Google Inc. All rights reserved. 2 # Copyright 2008 Google Inc. All rights reserved.
3 # http://code.google.com/p/protobuf/ 3 # http://code.google.com/p/protobuf/
4 # 4 #
5 # Redistribution and use in source and binary forms, with or without 5 # Redistribution and use in source and binary forms, with or without
6 # modification, are permitted provided that the following conditions are 6 # modification, are permitted provided that the following conditions are
7 # met: 7 # met:
8 # 8 #
9 # * Redistributions of source code must retain the above copyright 9 # * Redistributions of source code must retain the above copyright
10 # notice, this list of conditions and the following disclaimer. 10 # notice, this list of conditions and the following disclaimer.
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80 Then, for every field of every message class we construct an actual decoder. 80 Then, for every field of every message class we construct an actual decoder.
81 That decoder goes into a dict indexed by tag, so when we decode a message 81 That decoder goes into a dict indexed by tag, so when we decode a message
82 we repeatedly read a tag, look up the corresponding decoder, and invoke it. 82 we repeatedly read a tag, look up the corresponding decoder, and invoke it.
83 """ 83 """
84 84
85 __author__ = 'kenton@google.com (Kenton Varda)' 85 __author__ = 'kenton@google.com (Kenton Varda)'
86 86
87 import struct 87 import struct
88 import sys ##PY25 88 import sys ##PY25
89 _PY2 = sys.version_info[0] < 3 ##PY25 89 _PY2 = sys.version_info[0] < 3 ##PY25
90 from google.protobuf.internal import encoder 90 from protobuf26.internal import encoder
91 from google.protobuf.internal import wire_format 91 from protobuf26.internal import wire_format
92 from google.protobuf import message 92 from protobuf26 import message
93 93
94 94
95 # This will overflow and thus become IEEE-754 "infinity". We would use 95 # This will overflow and thus become IEEE-754 "infinity". We would use
96 # "float('inf')" but it doesn't work on Windows pre-Python-2.6. 96 # "float('inf')" but it doesn't work on Windows pre-Python-2.6.
97 _POS_INF = 1e10000 97 _POS_INF = 1e10000
98 _NEG_INF = -_POS_INF 98 _NEG_INF = -_POS_INF
99 _NAN = _POS_INF * 0 99 _NAN = _POS_INF * 0
100 100
101 101
102 # This is not for optimization, but rather to avoid conflicts with local 102 # This is not for optimization, but rather to avoid conflicts with local
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822 tag (in which case the calling loop should break). 822 tag (in which case the calling loop should break).
823 """ 823 """
824 824
825 # The wire type is always in the first byte since varints are little-endian. 825 # The wire type is always in the first byte since varints are little-endian.
826 wire_type = ord(tag_bytes[0:1]) & wiretype_mask 826 wire_type = ord(tag_bytes[0:1]) & wiretype_mask
827 return WIRETYPE_TO_SKIPPER[wire_type](buffer, pos, end) 827 return WIRETYPE_TO_SKIPPER[wire_type](buffer, pos, end)
828 828
829 return SkipField 829 return SkipField
830 830
831 SkipField = _FieldSkipper() 831 SkipField = _FieldSkipper()
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