Beispiel #1
0
def copy_slice_from_whitelist(_from,
                              _to,
                              dims,
                              both_slices,
                              isNav,
                              order=None):
    """Copies things from one object to another, according to whitelist, slicing
    where required.

    Parameters
    ----------
    _from : object
        Original object
    _to : object
        Target object
    dims : tuple
        (navigation_dimensions, signal_dimensions) of the original object that
        is sliced
    both_slices : tuple
        (original_slices, array_slices) of the operation that is performed
    isNav : bool
        if the slicing operation is performed on navigation dimensions of the
        object
    order : tuple, None
        if given, performs the copying in the order given. If not all attributes
        given, the rest is random (the order a whitelist.keys() returns them).
        If given in the object, _slicing_order is looked up.
    """
    def make_slice_navigation_decision(flags, isnav):
        if isnav:
            if 'inav' in flags:
                return True
            return None
        if 'isig' in flags:
            return False
        return None

    swl = None
    if hasattr(_from, '_slicing_whitelist'):
        swl = _from._slicing_whitelist

    if order is not None and not isinstance(order, tuple):
        raise ValueError('order argument has to be None or a tuple of strings')

    if order is None:
        order = ()
    if hasattr(_from, '_slicing_order'):
        order = order + \
            tuple(k for k in _from._slicing_order if k not in order)

    keys = order + tuple(k for k in _from._whitelist.keys() if k not in order)

    for key in keys:
        val = _from._whitelist[key]
        if key == 'self':
            target = None
        else:
            target = attrgetter(key)(_from)

        if val is None:
            # attrsetter(_to, key, attrgetter(key)(_from))
            # continue
            flags = []
        else:
            flags_str = val[0]
            flags = parse_flag_string(flags_str)

        if swl is not None and key in swl:
            flags.extend(parse_flag_string(swl[key]))

        if 'init' in flags:
            continue
        if 'id' in flags:
            continue
        if 'inav' in flags or 'isig' in flags:
            slice_nav = make_slice_navigation_decision(flags, isNav)
            result = _slice_target(target, dims, both_slices, slice_nav, 'sig'
                                   in flags)
            attrsetter(_to, key, result)
            continue
        else:
            # 'fn' in flag or no flags at all
            attrsetter(_to, key, target)
            continue
Beispiel #2
0
def copy_slice_from_whitelist(
        _from, _to, dims, both_slices, isNav, order=None):
    """Copies things from one object to another, according to whitelist, slicing
    where required.

    Parameters
    ----------
    _from : object
        Original object
    _to : object
        Target object
    dims : tuple
        (navigation_dimensions, signal_dimensions) of the original object that
        is sliced
    both_slices : tuple
        (original_slices, array_slices) of the operation that is performed
    isNav : bool
        if the slicing operation is performed on navigation dimensions of the
        object
    order : tuple, None
        if given, performs the copying in the order given. If not all attributes
        given, the rest is random (the order a whitelist.keys() returns them).
        If given in the object, _slicing_order is looked up.
    """

    def make_slice_navigation_decision(flags, isnav):
        if isnav:
            if 'inav' in flags:
                return True
            return None
        if 'isig' in flags:
            return False
        return None

    swl = None
    if hasattr(_from, '_slicing_whitelist'):
        swl = _from._slicing_whitelist

    if order is not None and not isinstance(order, tuple):
        raise ValueError('order argument has to be None or a tuple of strings')

    if order is None:
        order = ()
    if hasattr(_from, '_slicing_order'):
        order = order + \
            tuple(k for k in _from._slicing_order if k not in order)

    keys = order + tuple(k for k in _from._whitelist.keys() if k not in
                         order)

    for key in keys:
        val = _from._whitelist[key]
        if val is None:
            # attrsetter(_to, key, attrgetter(key)(_from))
            # continue
            flags = []
        else:
            flags_str = val[0]
            flags = parse_flag_string(flags_str)

        if swl is not None and key in swl:
            flags.extend(parse_flag_string(swl[key]))

        if 'init' in flags:
            continue
        if 'id' in flags:
            continue

        if key == 'self':
            target = None
        else:
            target = attrgetter(key)(_from)

        if 'inav' in flags or 'isig' in flags:
            slice_nav = make_slice_navigation_decision(flags, isNav)
            result = _slice_target(
                target,
                dims,
                both_slices,
                slice_nav,
                'sig' in flags)
            attrsetter(_to, key, result)
            continue
        else:
            # 'fn' in flag or no flags at all
            attrsetter(_to, key, target)
            continue
Beispiel #3
0
def copy_slice_from_whitelist(_from, _to, dims, both_slices, isNav):
    """Copies things from one object to another, according to whitelist, slicing
    where required.

    Parameters
    ----------
    _from : object
        Original object
    _to : object
        Target object
    dims : tuple
        (navigation_dimensions, signal_dimensions) of the original object that
        is sliced
    both_slices : tuple
        (original_slices, array_slices) of the operation that is performed
    isNav : bool
        if the slicing operation is performed on navigation dimensions of the
        object
    """

    def make_slice_navigation_decision(flags, isnav):
        if isnav:
            if 'inav' in flags:
                return True
            return None
        if 'isig' in flags:
            return False
        return None

    swl = None
    if hasattr(_from, '_slicing_whitelist'):
        swl = _from._slicing_whitelist

    for key, val in _from._whitelist.iteritems():
        if key == 'self':
            target = None
        else:
            target = attrgetter(key)(_from)

        if val is None:
            # attrsetter(_to, key, attrgetter(key)(_from))
            # continue
            flags = []
        else:
            flags_str = val[0]
            flags = parse_flag_string(flags_str)

        if swl is not None and key in swl:
            flags.extend(parse_flag_string(swl[key]))

        if 'init' in flags:
            continue
        if 'id' in flags:
            continue
        if 'inav' in flags or 'isig' in flags:
            slice_nav = make_slice_navigation_decision(flags, isNav)
            result = _slice_target(
                target,
                dims,
                both_slices,
                slice_nav,
                'sig' in flags)
            attrsetter(_to, key, result)
            continue
        else:
# 'fn' in flag or no flags at all
            attrsetter(_to, key, target)
            continue
Beispiel #4
0
def copy_slice_from_whitelist(_from, _to, dims, both_slices, isNav):
    """Copies things from one object to another, according to whitelist, slicing
    where required.

    Parameters
    ----------
    _from : object
        Original object
    _to : object
        Target object
    dims : tuple
        (navigation_dimensions, signal_dimensions) of the original object that
        is sliced
    both_slices : tuple
        (original_slices, array_slices) of the operation that is performed
    isNav : bool
        if the slicing operation is performed on navigation dimensions of the
        object
    """
    def make_slice_navigation_decision(flags, isnav):
        if isnav:
            if 'inav' in flags:
                return True
            return None
        if 'isig' in flags:
            return False
        return None

    swl = None
    if hasattr(_from, '_slicing_whitelist'):
        swl = _from._slicing_whitelist

    for key, val in _from._whitelist.iteritems():
        if key == 'self':
            target = None
        else:
            target = attrgetter(key)(_from)

        if val is None:
            # attrsetter(_to, key, attrgetter(key)(_from))
            # continue
            flags = []
        else:
            flags_str = val[0]
            flags = parse_flag_string(flags_str)

        if swl is not None and key in swl:
            flags.extend(parse_flag_string(swl[key]))

        if 'init' in flags:
            continue
        if 'id' in flags:
            continue
        if 'inav' in flags or 'isig' in flags:
            slice_nav = make_slice_navigation_decision(flags, isNav)
            result = _slice_target(target, dims, both_slices, slice_nav, 'sig'
                                   in flags)
            attrsetter(_to, key, result)
            continue
        else:
            # 'fn' in flag or no flags at all
            attrsetter(_to, key, target)
            continue