Function preVisit

include/daScript/simulate/simulate.h:226–226

    struct DAS_API SimVisitor {
        virtual void preVisit ( SimNode * ) { }
        virtual void cr () {}
        virtual void op ( const char * /* name */, uint32_t /* sz */ = 0, const string & /* TT */ = string() ) {}
        virtual void sp ( uint32_t /* stackTop */,  const char * /* op */ = "#sp" ) { }