So, if I were to write a programming language where the scope is accessible as an object, for example:

BlockScope {
    scope: [circular BlockScope],
    concat: "hello world",
    parent: FunctionScope {
        scope: [circular FunctionScope],
        arg1: "hello",
        arg2: "world",
        parent: GlobalScope {
            scope: [circular GlobalScope]
            /* ... */
        }
    }
}

Would the performance be terrible? I know most programming languages, even interpreted languages, don’t preserve variable names, save for the global scope. I can infer, then, that this increases performance by a significant amount, but in this language, I would have to keep track of everything, nullifying most scope-based optimizations.

Note: This language would be written in a compiled language of some sort, maybe Rust.