self.wire = wire
self.auto = auto
self.isfd = isfd
+ self.parent = None
class Expression(object):
elif elt.tag == 'sumof':
self.op = 'sumof'
self.lenfield_name = elt.get('ref')
+ subexpressions = list(elt)
+ if len(subexpressions) > 0:
+ # sumof with a nested expression which is to be evaluated
+ # for each list-element in the context of that list-element.
+ # sumof then returns the sum of the results of these evaluations
+ self.rhs = Expression(subexpressions[0], parent)
else:
# Notreached