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
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
