diff options
| -rw-r--r-- | pym/portage/dep.py | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/pym/portage/dep.py b/pym/portage/dep.py index 03f428495..a1908276b 100644 --- a/pym/portage/dep.py +++ b/pym/portage/dep.py @@ -392,6 +392,15 @@ class _use_dep(object): tokens.extend(self.conditional_disabled.difference(use)) return _use_dep(tokens) +class _AtomCache(type): + atoms = {} + def __call__(cls, s): + instance = cls.atoms.get(s) + if instance is None: + instance = super(_AtomCache, cls).__call__(s) + cls.atoms[s] = instance + return instance + class Atom(object): """ @@ -399,6 +408,8 @@ class Atom(object): class emulates most of the str methods that are useful with atoms. """ + __metaclass__ = _AtomCache + _str_methods = ("endswith", "find", "index", "lstrip", "replace", "startswith", "strip", "rindex", "rfind", "rstrip", "__getitem__", "__len__", "__repr__", "__str__") |