def is_simple(sum_type):
"""Return True if a sum is a simple.
- A sum is simple if it's types have no fields and itself
+ A sum is simple if its types have no fields and itself
doesn't have any attributes. Instances of these types are
cached at C level, and they act like singletons when propagating
parser generated nodes into Python level, e.g.
self.visit(t, name, sum.attributes)
def get_args(self, fields):
- """Return list of C argument into, one for each field.
+ """Return list of C argument info, one for each field.
Argument info is 3-tuple of a C type, variable name, and flag
that is true if type can be NULL.