Exemplo n.º 1
0
def enum_spec_getter(dummy_reg, chan):
    # we have already read the header containing the field number
    # read the byte count, the length of the spec
    byte_count = read_raw_varint(chan)
    end = chan.position + byte_count           # XXX should use for validation

    # read field 0
    hdr = read_raw_varint(chan)
    # SHOULD COMPLAIN IF WRONG HEADER
    string = read_raw_len_plus(chan)
    name = string.decode('utf-8')                  # convert bytes to str

    # read instances of field 1: should enforce the + quantifier here
    pairs = []
    while chan.position < end:
        hdr = read_raw_varint(chan)
        if hdr_field_nbr(hdr) != 1:
            # XXX SHOULD COMPLAIN IF WRONG HEADER
            # XXX This is a a peek: pos only gets advanced if OK
            print("EXPECTED FIELD 1, FOUND %s" % hdr_field_nbr(hdr))
            break
        exc = enum_pair_spec_getter(dummy_reg, chan)
        pairs.append(exc)

    # create EnumSpec instance, which gets returned
    val = EnumSpec(name, pairs)
    return val
Exemplo n.º 2
0
def msg_spec_getter(msg_reg, chan):
    # read the byte count, the length of the spec
    byte_count = read_raw_varint(chan)
    end = chan.position + byte_count

    # read field 0
    hdr = read_raw_varint(chan)
    # SHOULD COMPLAIN IF WRONG HEADER
    string = read_raw_len_plus(chan)
    name = string.decode('utf8')                 # convert byte to str

    # read instances of field 1: should enforce the + quantifier here
    fields = []
    while chan.position < end:
        hdr = read_raw_varint(chan)
        if hdr_field_nbr(hdr) != 1:
            # XXX SHOULD COMPLAIN IF WRONG HEADER
            # XXX This is a a peek: pos only gets advanced if OK
            print("EXPECTED FIELD 1, FOUND %s" % hdr_field_nbr(hdr))
            break
        # XXX params should be (msgReg, chan)
        file = field_spec_getter(msg_reg, chan)       # was chan0
        fields.append(file)

    # we may have multiple enums
    enums = []
    while chan.position < end:
        hdr = read_raw_varint(chan)
        if hdr_field_nbr(hdr) != 2:
            print("EXPECTED FIELD 2, FOUND %s" % hdr_field_nbr(hdr))
            break
        enum = enum_spec_getter(chan)     # was chan0
        enums.append(enum)

    # XXX WRONG PARAMETER LIST
    # val = MsgSpec(name, fields, enums)
    dummy_parent = MsgSpec('dummy', msg_reg, None)
    val = MsgSpec(name, msg_reg, dummy_parent)
    return val