Equality of value types

[egranata]

There is no way to compare value type instances for equality, e.g.

val type VT {
    x: int64,
}

func main() ret int32 {
    let v1 = alloc VT{x:1};
    let v2 = alloc VT{x:2};

    let eq = v1 == v2;

    let t1 = {1,2,3};
    let t2 = {3,4,5};

    let eq = t2 == t1;

    return 0;
}

the comparisons will fail:

error: type mismatch in expression
   ┌─ test.cpm:23:14
   │
23 │     let eq = v1 == v2;
   │              ^^^^^^^^

error: invalid expression
   ┌─ test.cpm:23:14
   │
23 │     let eq = v1 == v2;
   │              ^^^^^^^^

error: type mismatch in expression
   ┌─ test.cpm:28:14
   │
28 │     let eq = t2 == t1;
   │              ^^^^^^^^

error: invalid expression
   ┌─ test.cpm:28:14
   │
28 │     let eq = t2 == t1;
   │              ^^^^^^^^

There is no definition of equality for value types, either implicit by bitwise comparison or explicit by user defined comparator

[egranata]

This should be done in the general context of operator overloading