[PATCH 06 of 10] py3: add @util.boolclass markers for boolean classes

[timeless]

# HG changeset patch
# User timeless <timeless at mozdev.org>
# Date 1463009260 0
#      Wed May 11 23:27:40 2016 +0000
# Node ID d0b1768012385bb1ceacace2f6c32ee28a29f46e
# Parent  e670b15b74f80135c28e3ac57b0580ad98b47cb9
# Available At bb://timeless/mercurial-crew
#              hg pull bb://timeless/mercurial-crew -r d0b176801238
py3: add @util.boolclass markers for boolean classes

diff -r e670b15b74f8 -r d0b176801238 mercurial/ancestor.py
--- a/mercurial/ancestor.py	Thu May 12 00:06:19 2016 +0000
+++ b/mercurial/ancestor.py	Wed May 11 23:27:40 2016 +0000
@@ -11,6 +11,7 @@
 import heapq
 
 from .node import nullrev
+from . import util
 
 def commonancestorsheads(pfunc, *nodes):
     """Returns a set with the heads of all common ancestors of all nodes,
@@ -257,6 +258,7 @@
         missing.reverse()
         return missing
 
+ at util.boolclass
 class lazyancestors(object):
     def __init__(self, pfunc, revs, stoprev=0, inclusive=False):
         """Create a new object generating ancestors for the given revs. Does
diff -r e670b15b74f8 -r d0b176801238 mercurial/bundle2.py
--- a/mercurial/bundle2.py	Thu May 12 00:06:19 2016 +0000
+++ b/mercurial/bundle2.py	Wed May 11 23:27:40 2016 +0000
@@ -225,6 +225,7 @@
         return func
     return _decorator
 
+ at util.boolclass
 class unbundlerecords(object):
     """keep record of what happens during and unbundle
 
diff -r e670b15b74f8 -r d0b176801238 mercurial/context.py
--- a/mercurial/context.py	Thu May 12 00:06:19 2016 +0000
+++ b/mercurial/context.py	Wed May 11 23:27:40 2016 +0000
@@ -395,6 +395,7 @@
                  date, extra, editor)
     return ctx
 
+ at util.boolclass
 class changectx(basectx):
     """A changecontext object makes access to data related to a particular
     changeset convenient. It represents a read-only context already present in
@@ -707,6 +708,10 @@
             # file is missing
             return False
 
+    def __bool__(self):
+        """Python 3 equivalent of Python 2 __nonzero__"""
+        return self.__nonzero__()
+
     def __str__(self):
         return "%s@%s" % (self.path(), self._changectx)
 
@@ -1180,6 +1185,10 @@
     def __nonzero__(self):
         return True
 
+    def __bool__(self):
+        """Python 3 equivalent of Python 2 __nonzero__"""
+        return self.__nonzero__()
+
     def _buildflagfunc(self):
         # Create a fallback function for getting file flags when the
         # filesystem doesn't support them
@@ -1675,6 +1684,10 @@
     def __nonzero__(self):
         return True
 
+    def __bool__(self):
+        """Python 3 equivalent of Python 2 __nonzero__"""
+        return self.__nonzero__()
+
     def linkrev(self):
         # linked to self._changectx no matter if file is modified or not
         return self.rev()
diff -r e670b15b74f8 -r d0b176801238 mercurial/formatter.py
--- a/mercurial/formatter.py	Thu May 12 00:06:19 2016 +0000
+++ b/mercurial/formatter.py	Wed May 11 23:27:40 2016 +0000
@@ -24,6 +24,7 @@
 
 pickle = util.pickle
 
+ at util.boolclass
 class baseformatter(object):
     def __init__(self, ui, topic, opts):
         self._ui = ui
@@ -66,6 +67,7 @@
         if self._item is not None:
             self._showitem()
 
+ at util.boolclass
 class plainformatter(baseformatter):
     '''the default text output scheme'''
     def __init__(self, ui, topic, opts):
diff -r e670b15b74f8 -r d0b176801238 mercurial/hgweb/webutil.py
--- a/mercurial/hgweb/webutil.py	Thu May 12 00:06:19 2016 +0000
+++ b/mercurial/hgweb/webutil.py	Wed May 11 23:27:40 2016 +0000
@@ -58,6 +58,7 @@
         yield 3 * step
         step *= 10
 
+ at util.boolclass
 class revnav(object):
 
     def __init__(self, repo):
diff -r e670b15b74f8 -r d0b176801238 mercurial/localrepo.py
--- a/mercurial/localrepo.py	Thu May 12 00:06:19 2016 +0000
+++ b/mercurial/localrepo.py	Wed May 11 23:27:40 2016 +0000
@@ -228,6 +228,7 @@
     def changegroupsubset(self, bases, heads, source):
         return changegroup.changegroupsubset(self._repo, bases, heads, source)
 
+ at util.boolclass
 class localrepository(object):
 
     supportedformats = set(('revlogv1', 'generaldelta', 'treemanifest',
diff -r e670b15b74f8 -r d0b176801238 mercurial/revset.py
--- a/mercurial/revset.py	Thu May 12 00:06:19 2016 +0000
+++ b/mercurial/revset.py	Wed May 11 23:27:40 2016 +0000
@@ -2481,6 +2481,7 @@
     else:
         return repr(r)
 
+ at util.boolclass
 class abstractsmartset(object):
 
     def __nonzero__(self):
@@ -2590,6 +2591,7 @@
             condition = util.cachefunc(condition)
         return filteredset(self, condition, condrepr)
 
+ at util.boolclass
 class baseset(abstractsmartset):
     """Basic data structure that represents a revset and contains the basic
     operation that it should be able to perform.
@@ -2703,6 +2705,7 @@
             s = repr(l)
         return '<%s%s %s>' % (type(self).__name__, d, s)
 
+ at util.boolclass
 class filteredset(abstractsmartset):
     """Duck type for baseset class which iterates lazily over the revisions in
     the subset and contains a function which tests for membership in the
@@ -2842,6 +2845,7 @@
         for val in it:
             yield val
 
+ at util.boolclass
 class addset(abstractsmartset):
     """Represent the addition of two sets
 
@@ -3045,6 +3049,7 @@
         d = {None: '', False: '-', True: '+'}[self._ascending]
         return '<%s%s %r, %r>' % (type(self).__name__, d, self._r1, self._r2)
 
+ at util.boolclass
 class generatorset(abstractsmartset):
     """Wrap a generator for lazy iteration
 
@@ -3219,6 +3224,7 @@
         d = {False: '-', True: '+'}[self._ascending]
         return '<%s%s>' % (type(self).__name__, d)
 
+ at util.boolclass
 class spanset(abstractsmartset):
     """Duck type for baseset class which represents a range of revisions and
     can work lazily and without having all the range in memory