static foreach(k, p; AliasSeq!(this, s))		
{{
    p.foo(); // Fails even if this line is removed
}}

this not known at compile time. replace s with this and it works! s is an argument which is also not known at compile time(generally).

Should work with this.

Just "simplifying"

this.foo();
s.foo();


(obviously more complex code)

On Monday, 7 January 2019 at 16:01:50 UTC, Michelle Long wrote:
> static foreach(k, p; AliasSeq!(this, s))		
> {{
>     p.foo(); // Fails even if this line is removed
> }}
>
> this not known at compile time. replace s with this and it works! s is an argument which is also not known at compile time(generally).
>
> Should work with this.
>
> Just "simplifying"
>
> this.foo();
> s.foo();
>
>
> (obviously more complex code)

static foreach(k, p; AliasSeq!(Alias!this, s))		
{{
    p.foo(); // Fails even if this line is removed
}}

On Monday, 7 January 2019 at 16:16:57 UTC, Michelle Long wrote:
> On Monday, 7 January 2019 at 16:01:50 UTC, Michelle Long wrote:
>> static foreach(k, p; AliasSeq!(this, s))		
>> {{
>>     p.foo(); // Fails even if this line is removed
>> }}
>>
>> this not known at compile time. replace s with this and it works! s is an argument which is also not known at compile time(generally).
>>
>> Should work with this.
>>
>> Just "simplifying"
>>
>> this.foo();
>> s.foo();
>>
>>
>> (obviously more complex code)
>
> static foreach(k, p; AliasSeq!(Alias!this, s))		
> {{
>     p.foo(); // Fails even if this line is removed
> }}

referring to
https://forum.dlang.org/post/aqypsijjvajybtqtmnwt@forum.dlang.org

Do you trying to do a recursive call from foo to itself?

On 1/7/19 11:16 AM, Michelle Long wrote:
> On Monday, 7 January 2019 at 16:01:50 UTC, Michelle Long wrote:
>> static foreach(k, p; AliasSeq!(this, s))
>> {{
>>     p.foo(); // Fails even if this line is removed
>> }}
>>
>> this not known at compile time. replace s with this and it works! s is an argument which is also not known at compile time(generally).
>>
>> Should work with this.
>>
>> Just "simplifying"
>>
>> this.foo();
>> s.foo();
>>
>>
>> (obviously more complex code)
> 
> static foreach(k, p; AliasSeq!(Alias!this, s))
> {{
>      p.foo(); // Fails even if this line is removed
> }}

To expand on Michelle's cryptic response, the second form (using `Alias!this` instead of `this`) DOES work!

I think this is a bug. If the latter works, the former should. Please file at issues.dlang.org with a complete example.

-Steve

On Monday, 7 January 2019 at 16:29:25 UTC, Alex wrote:
> On Monday, 7 January 2019 at 16:16:57 UTC, Michelle Long wrote:
>> On Monday, 7 January 2019 at 16:01:50 UTC, Michelle Long wrote:
>>> static foreach(k, p; AliasSeq!(this, s))		
>>> {{
>>>     p.foo(); // Fails even if this line is removed
>>> }}
>>>
>>> this not known at compile time. replace s with this and it works! s is an argument which is also not known at compile time(generally).
>>>
>>> Should work with this.
>>>
>>> Just "simplifying"
>>>
>>> this.foo();
>>> s.foo();
>>>
>>>
>>> (obviously more complex code)
>>
>> static foreach(k, p; AliasSeq!(Alias!this, s))		
>> {{
>>     p.foo(); // Fails even if this line is removed
>> }}
>
> referring to
> https://forum.dlang.org/post/aqypsijjvajybtqtmnwt@forum.dlang.org
>
> Do you trying to do a recursive call from foo to itself?

foo has nothing to do with it, as I said, removing it produces the same error['p.foo(); // Fails even if this line is removed']. I only put in something in the block because some blockhead would say something if there was nothing there like "Why are you even bothering with a static for each on an empty block? are you that stupid that you don't realize the compiler won't emit any code?".

On Monday, 7 January 2019 at 16:31:49 UTC, Steven Schveighoffer wrote:
> On 1/7/19 11:16 AM, Michelle Long wrote:
>> On Monday, 7 January 2019 at 16:01:50 UTC, Michelle Long wrote:
>>> [...]
>> 
>> static foreach(k, p; AliasSeq!(Alias!this, s))
>> {{
>>      p.foo(); // Fails even if this line is removed
>> }}
>
> To expand on Michelle's cryptic response, the second form (using `Alias!this` instead of `this`) DOES work!
>
> I think this is a bug. If the latter works, the former should. Please file at issues.dlang.org with a complete example.
>
> -Steve

Ah, yes.