134a135
> 'INCR', 'DECR',
158a160,161
> t_INCR = r'\+\+'
> t_DECR = r'--'
160a164
> ('left', 'INCR', 'DECR'),
672a677,678
> | INCR expr
> | DECR expr
674c680
< p[0] = PrefixOperatorExpr(p[1], p[2])
---
> p[0] = ast.PrefixOperatorExprAST(self, p[1], p[2])