Method con

chapter21/src/test/java/com/seaofnodes/simple/Eval2.java:302–311

( Type t )

    // Java box ints and floats.  Other things can just be null or some informative string
    private static Object con( Type t ) {
        return switch ( t ) {
        case TypeInteger i -> i.isConstant() ? (Long  )i.value() : "INT";
        case TypeFloat   f -> f.isConstant() ? (Double)f.value() : "FLT";
        case TypeMemPtr tmp -> tmp;
        case TypeFunPtr tfp -> tfp;
        case TypeMem mem -> "MEM";
        default -> null;
        };
    }

    // Convert array size to array element count
    private static int offToIdx( long off, TypeStruct t) {