def parse_var_decl(self, base, offset):
last_id = ''
added = False
self.log.info('Parseaando declaracion de variables.')
while self.next_token.type != "semicolon":
self.read_token()
if self.next_token.type == "semicolon":
if not added:
try:
self.table.add_var(last_id, base)
except ValueError:
print("Error, identificador duplicado: " + last_id)
self.writer = NullWriter()
offset -= 1
self.read_token()
break
elif self.next_token.type == "ident":
if not added and last_id:
print('Se esperaba coma, se encontro identificador.')
self.table.add_var(last_id, base)
offset += 1
last_id = self.next_token.value
added = False
self.log.info("Declaro variable " + self.next_token.value)
elif self.next_token.type == "comma":
self.table.add_var(last_id, base)
added = True
self.log.info("Inicializo variable %s con valor por defecto" %
last_id)
elif self.next_token.type == 'semicolon':
self.table.add_var(last_id, base)
self.read_token()
return offset
else:
print("Error, token inesperado: " + str(self.next_token))
self._panic_synchronize(['comma', 'semicolon', 'ident'])
if not added:
offset -= 1
return offset
def error_expected(self, expected):
print("Se esperaba %s se recibio %s" %
(expected, self.next_token.value))
self.writer = NullWriter()
