Struct initialization extra comma - should it compile

[Bastiaan Veelo]

On Sunday, 25 April 2021 at 13:39:54 UTC, JN wrote:
>         struct Foo
>         {
>             int x, y, z;
>         }
>
>         void main()
>         {
>              Foo bar = Foo(1,);
>         }
>
> This compiles without syntax errors, is this expected?

Yes, the 
[specification](https://dlang.org/spec/declaration.html#StructInitializer) is like this:
```
StructMemberInitializers:
     StructMemberInitializer
     StructMemberInitializer ,
     StructMemberInitializer , StructMemberInitializers
```

— Bastiaan.