The code below doesn't compile because "static variable z cannot be read at compile time". However, z is a static variable, so I don't see why it wouldn't be available at compile-time.

Bug or am I missing something?

struct Bar
{
    int x = 2;
    int y;
}

static Bar z = {y:1};

void main()
{
    @z int d;
    //@Bar(2, 1) int d; //this compiles, but requires putting x in there
}

On Tuesday, 13 June 2017 at 22:04:48 UTC, jmh530 wrote:
> The code below doesn't compile because "static variable z cannot be read at compile time". However, z is a static variable, so I don't see why it wouldn't be available at compile-time.
>
> Bug or am I missing something?
>
> struct Bar
> {
>     int x = 2;
>     int y;
> }
>
> static Bar z = {y:1};
>
> void main()
> {
>     @z int d;
>     //@Bar(2, 1) int d; //this compiles, but requires putting x in there
> }

use "static immutable" as storage class. static is not enough for CT.

On 06/14/2017 12:04 AM, jmh530 wrote:
> The code below doesn't compile because "static variable z cannot be read at compile time". However, z is a static variable, so I don't see why it wouldn't be available at compile-time.
> 
> Bug or am I missing something?
> 
> struct Bar
> {
>      int x = 2;
>      int y;
> }
> 
> static Bar z = {y:1};
> 
> void main()
> {
>      @z int d;
>      //@Bar(2, 1) int d; //this compiles, but requires putting x in there
> }

No bug. `static` has no effect on module-level variables. `z` is a normal mutable variable, not at all guaranteed to be constant. Make it an `enum` or `immutable`.

Note that immutable doesn't guarantee compile-time constancy, either. You can only use an `immutable` as a compile-time constant when it's statically initialized.

On Tuesday, 13 June 2017 at 22:16:37 UTC, ag0aep6g wrote:
>
> No bug. `static` has no effect on module-level variables. `z` is a normal mutable variable, not at all guaranteed to be constant. Make it an `enum` or `immutable`.
>
> Note that immutable doesn't guarantee compile-time constancy, either. You can only use an `immutable` as a compile-time constant when it's statically initialized.

Appreciate the replies.