Create alias of same name in inner scope, bug or feature?

[Tejas]

On Saturday, 14 August 2021 at 04:01:31 UTC, Mike Parker wrote:
> On Saturday, 14 August 2021 at 03:47:05 UTC, Tejas wrote:
>> ```d
>> import std;
>> auto abc(T)(auto ref T a, auto ref T b){
>>     return a+b;
>> }
>>
>> auto def(T)(auto ref T a, auto ref T b){
>>         return a*b;
>>
>> }
>> alias macro_1 = abc;
>> void main()
>> {
>>     writeln(macro_1(15, 20));
>>     alias macro_1 = def;// is this NOT considered variable 
>> shadowing?
>>     writeln(macro_1(100, 20));
>>
>> }
>> ```
>
> Shadowing local symbols is illegal. But it's okay for local 
> symbols to have the same name as module-scope symbols. You can 
> disambigbuate with [the module scope operator][1]:
>
> ```d
> void main()
>    macro_1(); // the local symbol
>    .macro_1(); // the external symbol
> }
> ```
>
> [1]: https://dlang.org/spec/module.html#module_scope_operators

Oh right, the ```.``` operator will reference variable in the 
_module_ scope, not just the _immediate outer scope_, that's why 
it is not considered shadowing in that case.

Thank you very much!