comparison mercurial/pure/parsers.py @ 47507:d4c795576aeb

dirstate-entry: turn dirstate tuple into a real object (like in C)

With dirstate V2, the stored information and actual format will change. This mean we need to start an a better abstraction for a dirstate entry that a tuple directly accessed.

By chance, the C code is already doing this and pretend to be a tuple. So it
should be fairly easy. We start with turning the tuple into an object, we will
slowly migrate the dirstate code to no longer use the tuple directly in later
changesets.

Differential Revision: https://phab.mercurial-scm.org/D10949

47501:8b7e47802deb

_pack = struct.pack
_unpack = struct.unpack
_compress = zlib.compress
_decompress = zlib.decompress

# Some code below makes tuples directly because it's more convenient. However,
# code outside this module should always use dirstatetuple.
def dirstatetuple(*x):
    """the four items are:
    - state (one of 'n', 'a', 'r', 'm')
    - mode,
    - size,
    - mtime,
    """

    # x is a tuple
    return x


def gettype(q):
    return int(q & 0xFFFF)

47507:d4c795576aeb

_pack = struct.pack
_unpack = struct.unpack
_compress = zlib.compress
_decompress = zlib.decompress


class dirstatetuple(object):
    """represent a dirstate entry

    It contains:

    - state (one of 'n', 'a', 'r', 'm')
    - mode,
    - size,
    - mtime,
    """

    __slot__ = ('_state', '_mode', '_size', '_mtime')

    def __init__(self, state, mode, size, mtime):
        self._state = state
        self._mode = mode
        self._size = size
        self._mtime = mtime

    def __getitem__(self, idx):
        if idx == 0 or idx == -4:
            return self._state
        elif idx == 1 or idx == -3:
            return self._mode
        elif idx == 2 or idx == -2:
            return self._size
        elif idx == 3 or idx == -1:
            return self._mtime
        else:
            raise IndexError(idx)


def gettype(q):
    return int(q & 0xFFFF)