js sourcemap that maps a to t.a

I am developing a js code converter. here is a(much simplified) example input.js

let a=5
let b=6
const result = a + b;
console.log(result)

and the corresponding output.js

const t={}
t.a=5
t.b=6
t.result = t.a + t.b;
console.log(t.result)

I would like to debug the input.js using chrome devtools. While debugging, I want to run output.js, but see input.js on the devtool debugger. I am using source map for that and it works. the problem is that when hovering on a, I don't see the corresponding value t.a

my question is: is is possible to create a source map that will show me the value of t.a while hovering on a?