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Side by Side Diff: third_party/protobuf26/internal/wire_format.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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26 # DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 26 # DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
27 # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27 # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
28 # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 28 # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
29 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30 30
31 """Constants and static functions to support protocol buffer wire format.""" 31 """Constants and static functions to support protocol buffer wire format."""
32 32
33 __author__ = 'robinson@google.com (Will Robinson)' 33 __author__ = 'robinson@google.com (Will Robinson)'
34 34
35 import struct 35 import struct
36 from google.protobuf import descriptor 36 from protobuf26 import descriptor
37 from google.protobuf import message 37 from protobuf26 import message
38 38
39 39
40 TAG_TYPE_BITS = 3 # Number of bits used to hold type info in a proto tag. 40 TAG_TYPE_BITS = 3 # Number of bits used to hold type info in a proto tag.
41 TAG_TYPE_MASK = (1 << TAG_TYPE_BITS) - 1 # 0x7 41 TAG_TYPE_MASK = (1 << TAG_TYPE_BITS) - 1 # 0x7
42 42
43 # These numbers identify the wire type of a protocol buffer value. 43 # These numbers identify the wire type of a protocol buffer value.
44 # We use the least-significant TAG_TYPE_BITS bits of the varint-encoded 44 # We use the least-significant TAG_TYPE_BITS bits of the varint-encoded
45 # tag-and-type to store one of these WIRETYPE_* constants. 45 # tag-and-type to store one of these WIRETYPE_* constants.
46 # These values must match WireType enum in google/protobuf/wire_format.h. 46 # These values must match WireType enum in google/protobuf/wire_format.h.
47 WIRETYPE_VARINT = 0 47 WIRETYPE_VARINT = 0
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259 def IsTypePackable(field_type): 259 def IsTypePackable(field_type):
260 """Return true iff packable = true is valid for fields of this type. 260 """Return true iff packable = true is valid for fields of this type.
261 261
262 Args: 262 Args:
263 field_type: a FieldDescriptor::Type value. 263 field_type: a FieldDescriptor::Type value.
264 264
265 Returns: 265 Returns:
266 True iff fields of this type are packable. 266 True iff fields of this type are packable.
267 """ 267 """
268 return field_type not in NON_PACKABLE_TYPES 268 return field_type not in NON_PACKABLE_TYPES
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