Function _unpack_map

src/fallback/umsgpack/umsgpack.py:735–769

(code, fp, options)

def _unpack_map(code, fp, options):
    if (ord(code) & 0xf0) == 0x80:
        length = (ord(code) & ~0xf0)
    elif code == b'\xde':
        length = struct.unpack(">H", _read_except(fp, 2))[0]
    elif code == b'\xdf':
        length = struct.unpack(">I", _read_except(fp, 4))[0]
    else:
        raise Exception("logic error, not map: 0x%02x" % ord(code))

    d = {} if not options.get('use_ordered_dict') \
        else collections.OrderedDict()
    for _ in xrange(length):
        # Unpack key
        k = _unpack(fp, options)

        if isinstance(k, list):
            # Attempt to convert list into a hashable tuple
            k = _deep_list_to_tuple(k)
        elif not isinstance(k, collections.Hashable):
            raise UnhashableKeyException(
                "encountered unhashable key: %s, %s" % (str(k), str(type(k))))
        elif k in d:
            raise DuplicateKeyException(
                "encountered duplicate key: %s, %s" % (str(k), str(type(k))))

        # Unpack value
        v = _unpack(fp, options)

        try:
            d[k] = v
        except TypeError:
            raise UnhashableKeyException(
                "encountered unhashable key: %s" % str(k))
    return d


def _unpack(fp, options):