Anonymous method and callback was unsupported.

[LiaoPeng]

The below code:

function some_func(x: u64, y: u64): u64 {
    let operator: (t: u64) =>u64 = function(y: u64): u64 {
       let res = y + x;
       return res;
    };
   return operator(y) + x;
 }

 assert(some_func(12,12) == 36);

It throw the below error:

TS2304: Cannot find name 'x'.

          let res = y + x;
                        ~
   in anonymous.ts(4,21)


  Error: Compile error

Expected that using x in the operator function.

[dcodeIO]

Background is that closures are not yet supported because there is no respective representation in WASM. Afaik this is usually solved through GC support, i.e. by binding a scope to a concrete instance of a function.

[dcodeIO]

Closing as this requires the concept of closures in general, which should have one or two tracking issues somewhere.