The snippet below failed to compile (I think) in the latest DMD - but I can't see the error message in the web-based editor at dlang.org. It certainly failed to compile under GDC 5.2.0 when tried out using d.godbolt.org. (Is there any chance of a later GDC compiler there?)

Is it my bug, or a compiler bug? (name clash at link-time?):

void main()
	{
		{
		immutable static dstring str1 = "a";
		}
		{
		immutable static dstring str1 = "b";
		}
	}

On Saturday, 29 July 2017 at 01:54:29 UTC, Cecil Ward wrote:
> The snippet below failed to compile (I think) in the latest DMD - but I can't see the error message in the web-based editor at dlang.org. It certainly failed to compile under GDC 5.2.0 when tried out using d.godbolt.org. (Is there any chance of a later GDC compiler there?)
>
> Is it my bug, or a compiler bug? (name clash at link-time?):
>
> void main()
> 	{
> 		{
> 		immutable static dstring str1 = "a";
> 		}
> 		{
> 		immutable static dstring str1 = "b";
> 		}
> 	}

Workaround is just to rename one, assuming that avoids a name clash at <xx?phase>-time.

On Saturday, July 29, 2017 1:54:29 AM MDT Cecil Ward via Digitalmars-d-learn wrote:
> The snippet below failed to compile (I think) in the latest DMD - but I can't see the error message in the web-based editor at dlang.org. It certainly failed to compile under GDC 5.2.0 when tried out using d.godbolt.org. (Is there any chance of a later GDC compiler there?)
>
> Is it my bug, or a compiler bug? (name clash at link-time?):
>
> void main()
>   {
>       {
>       immutable static dstring str1 = "a";
>       }
>       {
>       immutable static dstring str1 = "b";
>       }
>   }

Well, based on the error message, I'd say that the restriction is on purpose:

q.d(7): Error: declaration q.main.str1 is already defined in another scope
in main

The bit about "another scope" just wouldn't make sense if it weren't on purpose, since there is normally no such restriction. That being said, I have no idea why such a restriction would be in place. It works perfectly well if the variables aren't static, so it's something about static that's causing it. I would argue that it _should_ work, so I think that you should at least open up an enhancement request, but I have no idea what the compiler devs would say on the matter.

- Jonathan M Davis

On 07/29/2017 03:54 AM, Cecil Ward wrote:
> Is it my bug, or a compiler bug? (name clash at link-time?):
> 
> void main()
>      {
>          {
>          immutable static dstring str1 = "a";
>          }
>          {
>          immutable static dstring str1 = "b";
>          }
>      }

https://issues.dlang.org/show_bug.cgi?id=11720

Ideally (imo), the code would work. The two variables would need different mangled names. No idea how hard that would be to implement.