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mirror of https://github.com/jlu5/PyLink.git synced 2024-11-24 03:29:28 +01:00

Move DeprecatedAttributesObject, CamelCaseToSnakeCase to structures (#476)

This commit is contained in:
James Lu 2017-08-28 19:36:55 -07:00
parent 0907f05296
commit b1159400f1
3 changed files with 47 additions and 46 deletions

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@ -45,7 +45,7 @@ class ChannelState(structures.IRCCaseInsensitiveDict):
return self._data[key]
class PyLinkNetworkCore(utils.DeprecatedAttributesObject, utils.CamelCaseToSnakeCase):
class PyLinkNetworkCore(structures.DeprecatedAttributesObject, structures.CamelCaseToSnakeCase):
"""Base IRC object for PyLink."""
def __init__(self, netname):
@ -1568,7 +1568,7 @@ class Server():
IrcServer = Server
class Channel(utils.DeprecatedAttributesObject, utils.CamelCaseToSnakeCase, structures.CopyWrapper):
class Channel(structures.DeprecatedAttributesObject, structures.CamelCaseToSnakeCase, structures.CopyWrapper):
"""PyLink IRC channel class."""
def __init__(self, irc, name=None):

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@ -11,6 +11,7 @@ import pickle
import os
import threading
from copy import copy, deepcopy
import string
from .log import log
from . import conf
@ -151,6 +152,50 @@ class IRCCaseInsensitiveSet(CaseInsensitiveSet):
def __copy__(self):
return self.__class__(self._irc, data=self._data.copy())
class DeprecatedAttributesObject():
"""
Object implementing deprecated attributes and warnings on access.
"""
def __init__(self):
self.deprecated_attributes = {}
def __getattribute__(self, attr):
# Note: "self.deprecated_attributes" calls this too, so the != check is
# needed to prevent a recursive loop!
# Also ignore reserved names beginning with "__".
if attr != 'deprecated_attributes' and not attr.startswith('__') and attr in self.deprecated_attributes:
log.warning('Attribute %s.%s is deprecated: %s' % (self.__class__.__name__, attr,
self.deprecated_attributes.get(attr)))
return object.__getattribute__(self, attr)
class CamelCaseToSnakeCase():
"""
Class which automatically converts missing attributes from camel case to snake case.
"""
def __getattr__(self, attr):
"""
Attribute fetching fallback function which normalizes camel case attributes to snake case.
"""
assert isinstance(attr, str), "Requested attribute %r is not a string!" % attr
normalized_attr = '' # Start off with the first letter, which is ignored when processing
for char in attr:
if char in string.ascii_uppercase:
char = '_' + char.lower()
normalized_attr += char
classname = self.__class__.__name__
if normalized_attr == attr:
# __getattr__ only fires if normal attribute fetching fails, so we can assume that
# the attribute was tried already and failed.
raise AttributeError('%s object has no attribute with normalized name %r' % (classname, attr))
target = getattr(self, normalized_attr)
log.warning('%s.%s is deprecated, considering migrating to %s.%s!', classname, attr, classname, normalized_attr)
return target
class DataStore:
"""
Generic database class. Plugins should use a subclass of this such as JSONDataStore or

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@ -669,47 +669,3 @@ class IRCParser(argparse.ArgumentParser):
def exit(self, *args):
return
class DeprecatedAttributesObject():
"""
Object implementing deprecated attributes and warnings on access.
"""
def __init__(self):
self.deprecated_attributes = {}
def __getattribute__(self, attr):
# Note: "self.deprecated_attributes" calls this too, so the != check is
# needed to prevent a recursive loop!
# Also ignore reserved names beginning with "__".
if attr != 'deprecated_attributes' and not attr.startswith('__') and attr in self.deprecated_attributes:
log.warning('Attribute %s.%s is deprecated: %s' % (self.__class__.__name__, attr,
self.deprecated_attributes.get(attr)))
return object.__getattribute__(self, attr)
class CamelCaseToSnakeCase():
"""
Class which automatically converts missing attributes from camel case to snake case.
"""
def __getattr__(self, attr):
"""
Attribute fetching fallback function which normalizes camel case attributes to snake case.
"""
assert isinstance(attr, str), "Requested attribute %r is not a string!" % attr
normalized_attr = '' # Start off with the first letter, which is ignored when processing
for char in attr:
if char in string.ascii_uppercase:
char = '_' + char.lower()
normalized_attr += char
classname = self.__class__.__name__
if normalized_attr == attr:
# __getattr__ only fires if normal attribute fetching fails, so we can assume that
# the attribute was tried already and failed.
raise AttributeError('%s object has no attribute with normalized name %r' % (classname, attr))
target = getattr(self, normalized_attr)
log.warning('%s.%s is deprecated, considering migrating to %s.%s!', classname, attr, classname, normalized_attr)
return target