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Serialization for unsigned integers
[sandbox]
/
serial
/
binary.py
diff --git
a/serial/binary.py
b/serial/binary.py
index
e8c9093
..
f6bcff7
100644
(file)
--- a/
serial/binary.py
+++ b/
serial/binary.py
@@
-1,9
+1,15
@@
import collections
import collections
+import functools
import io
import io
+import struct
TAG_NULL = 0x00
TAG_TRUE = 0x01
TAG_FALSE = 0x02
TAG_NULL = 0x00
TAG_TRUE = 0x01
TAG_FALSE = 0x02
+TAG_UINT8 = 0x03
+TAG_UINT16 = 0x04
+TAG_UINT32 = 0x05
+TAG_UINT64 = 0x06
TaggedObject = collections.namedtuple(
'TaggedObject',
TaggedObject = collections.namedtuple(
'TaggedObject',
@@
-22,10
+28,23
@@
def _make_tag_only_serializer(tag, expected_value):
return serializer
return serializer
+def _make_struct_serializer(fmt):
+ fmt = '!B' + fmt
+ packer = functools.partial(struct.pack, fmt)
+
+ def serializer(to):
+ return packer(to.tag, to.instance)
+
+ return serializer
+
_TAGS_TO_SERIALIZERS = {
TAG_NULL: _make_tag_only_serializer(TAG_NULL, None),
TAG_TRUE: _make_tag_only_serializer(TAG_TRUE, True),
TAG_FALSE: _make_tag_only_serializer(TAG_FALSE, False),
_TAGS_TO_SERIALIZERS = {
TAG_NULL: _make_tag_only_serializer(TAG_NULL, None),
TAG_TRUE: _make_tag_only_serializer(TAG_TRUE, True),
TAG_FALSE: _make_tag_only_serializer(TAG_FALSE, False),
+ TAG_UINT8: _make_struct_serializer('B'),
+ TAG_UINT16: _make_struct_serializer('H'),
+ TAG_UINT32: _make_struct_serializer('I'),
+ TAG_UINT64: _make_struct_serializer('Q'),
}
def serialize(to):
}
def serialize(to):