mercurial/repoview.py

47009:42eb8b7881b8

_filteredrepotypes = weakref.WeakKeyDictionary()


def newtype(base):
    """Create a new type with the repoview mixin and the given base class"""
    cls = _filteredrepotypes.get(base)
    if cls is not None:
        return cls

    class filteredrepo(repoview, base):
        pass

    _filteredrepotypes[base] = filteredrepo
    return filteredrepo

47010:76ae43d5b1db

_filteredrepotypes = weakref.WeakKeyDictionary()


def newtype(base):
    """Create a new type with the repoview mixin and the given base class"""
    ref = _filteredrepotypes.get(base)
    if ref is not None:
        cls = ref()
        if cls is not None:
            return cls

    class filteredrepo(repoview, base):
        pass

    _filteredrepotypes[base] = weakref.ref(filteredrepo)
    # do not reread from weakref to be 100% sure not to return None
    return filteredrepo