lrucachedict: implement clear()

mercurial/util.py

@@ -242,6 +242,10 class lrucachedict(object):
     def __contains__(self, key):
         return key in self._cache
 
+    def clear(self):
+        self._cache.clear()
+        self._order = deque()
+
 def lrucachefunc(func):
     '''cache most recent results of function calls'''
     cache = {}

tests/test-lrucachedict.py

@@ -31,5 +31,8 def test_lrucachedict():
     d['f'] = 'vf'
     printifpresent(d, ['b', 'c', 'd', 'e', 'f'])
 
+    d.clear()
+    printifpresent(d, ['b', 'c', 'd', 'e', 'f'])
+
 if __name__ == '__main__':
     test_lrucachedict()

tests/test-lrucachedict.py.out

@@ -24,3 +24,8 d['d']: vd
 'e' in d: False
 'f' in d: True
 d['f']: vf
+'b' in d: False
+'c' in d: False
+'d' in d: False
+'e' in d: False
+'f' in d: False