Treating a java array of more than two dimensions as a list

Question

I am using Groovy to write a DSL handling BASIC and I would like some assistance with how to handle multi (more than 2) dimensional arrays.

I am dealing with BASIC code like this:

100 LET X = A(1, 2, 3)

It is easy to handle the 1 dimensional case - just create a closure (via MOP) that returns the elements of A, while for 2 dimensions I can do the same in the form

A(2, 3) == A.get(2)[3]

But how do I handle arrays of unlimited dimensions?

Update: To make this a bit clearer, the question is how can I return the array values dynamically in the DSL context? The script interpreter sees A(1, 2, 3) as a function call which I can intercept using the MOP. But how do I return the value of the array element in that context?

Answer 1

In the end I decided to parse the input and use that to build a closure via the MOP:

    /* array references look like functions to Groovy so trap them */
    BinsicInterpreter.metaClass."$varName" = {Object[] arg ->
        def answer = "package binsic; $varName"
        arg.each { 
            answer = answer + "[$it]"
        }
        def something = shell.evaluate(answer)
        return something
    }

So if we had:

100 LET X = A(10, 20, 3)

The MOP traps A(...) as a function call and the code above gives me A[10][20][3]