# HG changeset patch
# User Lucas Moscovicz <lmoscovicz@fb.com>
# Date 1394669258 25200
# Node ID 9cc2249a9461c04d6e65a510c1103f46270466eb
# Parent  623ed0ed793e57723de6bb2f5351cfb3e2133ef5
revset: made generatorset a private class

This class are not supposed to be used outside revset.py since it only
wraps content that is used by baseset typed classes.

It only gets created by revset operations or private methods.

diff -r 623ed0ed793e -r 9cc2249a9461 mercurial/revset.py
--- a/mercurial/revset.py	Wed Mar 05 18:49:47 2014 -0800
+++ b/mercurial/revset.py	Wed Mar 12 17:07:38 2014 -0700
@@ -2325,7 +2325,7 @@
                 for r in self._r2:
                     if r not in s:
                         yield r
-            self._iter = generatorset(gen())
+            self._iter = _generatorset(gen())
 
         return self._iter
 
@@ -2336,11 +2336,16 @@
     def __contains__(self, x):
         return x in self._r1 or x in self._r2
 
-class generatorset(object):
-    """Wrapper structure for generators that provides lazy membership and can
+class _generatorset(object):
+    """Wrap a generator for lazy iteration
+
+    Wrapper structure for generators that provides lazy membership and can
     be iterated more than once.
     When asked for membership it generates values until either it finds the
     requested one or has gone through all the elements in the generator
+
+    This class does not duck-type baseset and it's only supposed to be used
+    internally
     """
     def __init__(self, gen):
         self._gen = gen
@@ -2386,8 +2391,8 @@
                 continue
         self._genlist.sort(reverse=reverse)
 
-class ascgeneratorset(generatorset):
-    """ Same structure as generatorset but stops iterating after it goes past
+class ascgeneratorset(_generatorset):
+    """ Same structure as _generatorset but stops iterating after it goes past
     the value when asked for membership and the element is not contained
     """
     def __contains__(self, x):
@@ -2403,8 +2408,8 @@
         self._cache[x] = False
         return False
 
-class descgeneratorset(generatorset):
-    """ Same structure as generatorset but stops iterating after it goes past
+class descgeneratorset(_generatorset):
+    """ Same structure as _generatorset but stops iterating after it goes past
     the value when asked for membership and the element is not contained
     """
     def __contains__(self, x):