comparison mercurial/manifest.py @ 30331:b19291e5d506

manifest: add __nonzero__ method

This adds a __nonzero__ method to manifestdict. This isn't strictly necessary in
the vanilla Mercurial implementation, since Python will handle nonzero checks by
using __len__, but having it implemented here makes it easier for alternative
implementations to implement __nonzero__ and have them be plug-n-play with the
normal implementation.

30330:a2f2f694dce9

        return self._lm[key]

    def __len__(self):
        return len(self._lm)

    def __setitem__(self, key, node):
        self._lm[key] = node, self.flags(key, '')

    def __contains__(self, key):
        return key in self._lm

30331:b19291e5d506

        return self._lm[key]

    def __len__(self):
        return len(self._lm)

    def __nonzero__(self):
        # nonzero is covered by the __len__ function, but implementing it here
        # makes it easier for extensions to override.
        return len(self._lm) != 0

    def __setitem__(self, key, node):
        self._lm[key] = node, self.flags(key, '')

    def __contains__(self, key):
        return key in self._lm