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bitbake: COW: formatting

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(Bitbake rev: d2b202e04cd4837992283577747475fa7d9e34e5)

Signed-off-by: Chris Laplante <chris.laplante@agilent.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
This commit is contained in:
Chris Laplante
2020-08-27 16:38:38 -04:00
committed by Richard Purdie
parent b36dfafb69
commit ef26587a72
1 changed files with 21 additions and 7 deletions
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bitbake/lib/bb/COW.py
+21 -7
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@@ -3,13 +3,14 @@
# #
# Copyright (C) 2006 Tim Ansell # Copyright (C) 2006 Tim Ansell
# #
#Please Note: # Please Note:
# Be careful when using mutable types (ie Dict and Lists) - operations involving these are SLOW. # Be careful when using mutable types (ie Dict and Lists) - operations involving these are SLOW.
# Assign a file to __warn__ to get warnings about slow operations. # Assign a file to __warn__ to get warnings about slow operations.
# #
import copy import copy
ImmutableTypes = ( ImmutableTypes = (
bool, bool,
complex, complex,
@@ -22,9 +23,11 @@ ImmutableTypes = (
MUTABLE = "__mutable__" MUTABLE = "__mutable__"
class COWMeta(type): class COWMeta(type):
pass pass
class COWDictMeta(COWMeta): class COWDictMeta(COWMeta):
__warn__ = False __warn__ = False
__hasmutable__ = False __hasmutable__ = False
@@ -33,12 +36,15 @@ class COWDictMeta(COWMeta):
def __str__(cls): def __str__(cls):
# FIXME: I have magic numbers! # FIXME: I have magic numbers!
return "<COWDict Level: %i Current Keys: %i>" % (cls.__count__, len(cls.__dict__) - 3) return "<COWDict Level: %i Current Keys: %i>" % (cls.__count__, len(cls.__dict__) - 3)
__repr__ = __str__ __repr__ = __str__
def cow(cls): def cow(cls):
class C(cls): class C(cls):
__count__ = cls.__count__ + 1 __count__ = cls.__count__ + 1
return C return C
copy = cow copy = cow
__call__ = cow __call__ = cow
@@ -70,8 +76,9 @@ class COWDictMeta(COWMeta):
return value return value
__getmarker__ = [] __getmarker__ = []
def __getreadonly__(cls, key, default=__getmarker__): def __getreadonly__(cls, key, default=__getmarker__):
"""\ """
Get a value (even if mutable) which you promise not to change. Get a value (even if mutable) which you promise not to change.
""" """
return cls.__getitem__(key, default, True) return cls.__getitem__(key, default, True)
@@ -138,24 +145,29 @@ class COWDictMeta(COWMeta):
def iterkeys(cls): def iterkeys(cls):
return cls.iter("keys") return cls.iter("keys")
def itervalues(cls, readonly=False): def itervalues(cls, readonly=False):
if not cls.__warn__ is False and cls.__hasmutable__ and readonly is False: if not cls.__warn__ is False and cls.__hasmutable__ and readonly is False:
print("Warning: If you arn't going to change any of the values call with True.", file=cls.__warn__) print("Warning: If you aren't going to change any of the values call with True.", file=cls.__warn__)
return cls.iter("values", readonly) return cls.iter("values", readonly)
def iteritems(cls, readonly=False): def iteritems(cls, readonly=False):
if not cls.__warn__ is False and cls.__hasmutable__ and readonly is False: if not cls.__warn__ is False and cls.__hasmutable__ and readonly is False:
print("Warning: If you arn't going to change any of the values call with True.", file=cls.__warn__) print("Warning: If you aren't going to change any of the values call with True.", file=cls.__warn__)
return cls.iter("items", readonly) return cls.iter("items", readonly)
class COWSetMeta(COWDictMeta): class COWSetMeta(COWDictMeta):
def __str__(cls): def __str__(cls):
# FIXME: I have magic numbers! # FIXME: I have magic numbers!
return "<COWSet Level: %i Current Keys: %i>" % (cls.__count__, len(cls.__dict__) -3) return "<COWSet Level: %i Current Keys: %i>" % (cls.__count__, len(cls.__dict__) - 3)
__repr__ = __str__ __repr__ = __str__
def cow(cls): def cow(cls):
class C(cls): class C(cls):
__count__ = cls.__count__ + 1 __count__ = cls.__count__ + 1
return C return C
def add(cls, value): def add(cls, value):
@@ -173,11 +185,13 @@ class COWSetMeta(COWDictMeta):
def iteritems(cls): def iteritems(cls):
raise TypeError("sets don't have 'items'") raise TypeError("sets don't have 'items'")
# These are the actual classes you use! # These are the actual classes you use!
class COWDictBase(object, metaclass = COWDictMeta): class COWDictBase(metaclass=COWDictMeta):
__count__ = 0 __count__ = 0
class COWSetBase(object, metaclass = COWSetMeta):
class COWSetBase(metaclass=COWSetMeta):
__count__ = 0 __count__ = 0
if __name__ == "__main__": if __name__ == "__main__":