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rust: simplify pattern file parsing...
rust: simplify pattern file parsing Previously we kept the pattern syntax as a &[u8] until the last possible moment, which meant we had to handle potential errors when parsing that &[u8]. But such errors could never actually occur, given the structure of the code. Now we parse it eagerly (in two places) and pass it around as a PatternSyntax, so we can delete some error handling code. parse_one_pattern is in particular useful for parsing patterns passed on the command line, as we'll support later in this series.
Pulkit Goyal - - Load All Authors

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types.py
55 lines | 1.3 KiB | text/x-python | PythonLexer
/ mercurial / thirdparty / cbor / cbor2 / types.py
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class CBORTag(object):
"""
Represents a CBOR semantic tag.
:param int tag: tag number
:param value: encapsulated value (any object)
"""
__slots__ = 'tag', 'value'
def __init__(self, tag, value):
self.tag = tag
self.value = value
def __eq__(self, other):
if isinstance(other, CBORTag):
return self.tag == other.tag and self.value == other.value
return NotImplemented
def __repr__(self):
return 'CBORTag({self.tag}, {self.value!r})'.format(self=self)
class CBORSimpleValue(object):
"""
Represents a CBOR "simple value".
:param int value: the value (0-255)
"""
__slots__ = 'value'
def __init__(self, value):
if value < 0 or value > 255:
raise TypeError('simple value too big')
self.value = value
def __eq__(self, other):
if isinstance(other, CBORSimpleValue):
return self.value == other.value
elif isinstance(other, int):
return self.value == other
return NotImplemented
def __repr__(self):
return 'CBORSimpleValue({self.value})'.format(self=self)
class UndefinedType(object):
__slots__ = ()
#: Represents the "undefined" value.
undefined = UndefinedType()
break_marker = object()