Parsing bug?

[RazvanN]

On Monday, 27 April 2020 at 22:48:46 UTC, Jean-Louis Leroy wrote:
> import std.traits;
>
> unittest
> {
>   struct attr;
>   void foo() {}
>   ReturnType!foo bar(int a) {}
>   void baz(@attr int a) {}
>   ReturnType!foo blah(@attr int a) {}
> }
>
> dmd -c -unittest bug.d
> bug.d(9): Error: found `blah` when expecting `;` following 
> statement
> bug.d(10): Error: found `}` when expecting `;` following 
> statement
> bug.d(11): Error: found `End of File` when expecting `}` 
> following compound statement
>
> This goes away if I remove `unittest { }`.

Yes, this is a parser bug. `unittest` isn't important here (you 
can replace unittest with a function declaration and the behavior 
will be the same), it's the fact that you are declaring a nested 
function which returns a template instance  that confuses the 
parser. Please file this on bugzilla.