Method preVisit

src/ast/ast_unused.cpp:399–404

addr of expression

        }
    // addr of expression
        virtual void preVisit ( ExprRef2Ptr * expr ) override {
            Visitor::preVisit(expr);
            // TODO:
            //  at some point we should do better data trackng for this type of aliasing
            propagateWrite(expr);
        }
    // source in the For loop
        virtual void preVisitForSource ( ExprFor * expr, Expression * subexpr, bool last ) override {
            Visitor::preVisitForSource(expr, subexpr, last);