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author | Chris Laplante <chris.laplante@agilent.com> | 2020-08-27 16:38:38 -0400 |
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committer | Richard Purdie <richard.purdie@linuxfoundation.org> | 2020-08-28 07:18:31 +0100 |
commit | d2b202e04cd4837992283577747475fa7d9e34e5 (patch) | |
tree | 69562c5d12376caccb24d28ec1685110b04df99b /lib | |
parent | 14caa3d4e5615252b9453162183980044d896d2f (diff) | |
download | bitbake-d2b202e04cd4837992283577747475fa7d9e34e5.tar.gz |
COW: formatting
Signed-off-by: Chris Laplante <chris.laplante@agilent.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Diffstat (limited to 'lib')
-rw-r--r-- | lib/bb/COW.py | 28 |
1 files changed, 21 insertions, 7 deletions
diff --git a/lib/bb/COW.py b/lib/bb/COW.py index bc20ce38e..3785a8b03 100644 --- a/lib/bb/COW.py +++ b/lib/bb/COW.py @@ -3,13 +3,14 @@ # # Copyright (C) 2006 Tim Ansell # -#Please Note: +# Please Note: # 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. # import copy + ImmutableTypes = ( bool, complex, @@ -22,9 +23,11 @@ ImmutableTypes = ( MUTABLE = "__mutable__" + class COWMeta(type): pass + class COWDictMeta(COWMeta): __warn__ = False __hasmutable__ = False @@ -33,12 +36,15 @@ class COWDictMeta(COWMeta): def __str__(cls): # FIXME: I have magic numbers! return "<COWDict Level: %i Current Keys: %i>" % (cls.__count__, len(cls.__dict__) - 3) + __repr__ = __str__ def cow(cls): class C(cls): __count__ = cls.__count__ + 1 + return C + copy = cow __call__ = cow @@ -70,8 +76,9 @@ class COWDictMeta(COWMeta): return value __getmarker__ = [] + def __getreadonly__(cls, key, default=__getmarker__): - """\ + """ Get a value (even if mutable) which you promise not to change. """ return cls.__getitem__(key, default, True) @@ -138,24 +145,29 @@ class COWDictMeta(COWMeta): def iterkeys(cls): return cls.iter("keys") + def itervalues(cls, readonly=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) + def iteritems(cls, readonly=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) + class COWSetMeta(COWDictMeta): def __str__(cls): # 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__ def cow(cls): class C(cls): __count__ = cls.__count__ + 1 + return C def add(cls, value): @@ -173,11 +185,13 @@ class COWSetMeta(COWDictMeta): def iteritems(cls): raise TypeError("sets don't have 'items'") + # These are the actual classes you use! -class COWDictBase(object, metaclass = COWDictMeta): +class COWDictBase(metaclass=COWDictMeta): __count__ = 0 -class COWSetBase(object, metaclass = COWSetMeta): + +class COWSetBase(metaclass=COWSetMeta): __count__ = 0 if __name__ == "__main__": |