Injecting variable values in .interpret

Questions
1

Hi all,
I want to do something like this:

var vx = 3;
var vy = 9;
("vx + vy").interpret

…but I’m not sure how to inject the values into the interpreting process. Any ideas?

2

Local variables exist only within their “compilation context.” .interpret is a new, separate compilation context. So what you’re thinking is not possible.

However I think this might work:

var vx = 3;
var vy = 9;
("{ |vx, vy| vx + vy }").interpret.value(vx, vy);

Or use environment variables, which exist in a collection rather than in a “context.”

// use-ing a new environment preserves locality
Environment.new.use {
    ~vx = 3;
    ~vy = 9;
    ("~vx + ~vy").interpret;
}

hjh

1 Like
3

Interesting! That’s exactly the kind of thing I was looking for; I think it might work for what I’m trying to do.