mercurial/context.py

40691:a65fe13de84f

        changeset the filectx was created from. It ensures the returned
        revision is one of its ancestors. This prevents bugs from
        'linkrev-shadowing' when a file revision is used by multiple
        changesets.
        """
        attrs = vars(self)
        hastoprev = (r'_changeid' in attrs or r'_changectx' in attrs)
        if hastoprev:
            return self._adjustlinkrev(self.rev(), inclusive=True)
        else:
            return self.linkrev()

    def introfilectx(self):
        """Return filectx having identical contents, but pointing to the

40692:f3f4d8537b11

        changeset the filectx was created from. It ensures the returned
        revision is one of its ancestors. This prevents bugs from
        'linkrev-shadowing' when a file revision is used by multiple
        changesets.
        """
        toprev = None
        attrs = vars(self)
        if r'_changeid' in attrs:
            # We have a cached value already
            toprev = self._changeid
        elif r'_changectx' in attrs:
            # We know which changelog entry we are coming from
            toprev = self._changectx.rev()

        if toprev is not None:
            return self._adjustlinkrev(toprev, inclusive=True)
        else:
            return self.linkrev()

    def introfilectx(self):
        """Return filectx having identical contents, but pointing to the