• Andrey Zherikov (13/13) Jan 19 I was looking at dmd source code and found an undocumented
• Richard (Rikki) Andrew Cattermole (1/1) Jan 19 https://issues.dlang.org/show_bug.cgi?id=24346
• Andrey Zherikov (4/5) Jan 19 Does this mean it's a bug? :)
• Richard (Rikki) Andrew Cattermole (8/14) Jan 19 There is a bug here yes.

Andrey Zherikov <andrey.zherikov gmail.com> writes:

I was looking at dmd source code and found an undocumented 
behavior:
```d
 a=>7 int b;
pragma(msg, __traits(getAttributes, b)); // AliasSeq!((a) => 7)
```
[D 
grammar](https://dlang.org/spec/grammar.html#UserDefinedAttribute) allows
lambda in UDA only inside parenthesis:
```d
 (a=>7) int b;
pragma(msg, __traits(getAttributes, b)); // AliasSeq!((a) => 7)
```

So is this a bug in compiler or in grammar documentation?

"Richard (Rikki) Andrew Cattermole" <richard cattermole.co.nz> writes:

https://issues.dlang.org/show_bug.cgi?id=24346

Andrey Zherikov <andrey.zherikov gmail.com> writes:

On Saturday, 20 January 2024 at 01:25:16 UTC, Richard (Rikki) 
Andrew Cattermole wrote:
 https://issues.dlang.org/show_bug.cgi?id=24346

Does this mean it's a bug? :)
tbh I'd like to try fixing it since I'm with that code atm.

"Richard (Rikki) Andrew Cattermole" <richard cattermole.co.nz> writes:

On 20/01/2024 2:26 PM, Andrey Zherikov wrote:
 On Saturday, 20 January 2024 at 01:25:16 UTC, Richard (Rikki) Andrew 
 Cattermole wrote:
 https://issues.dlang.org/show_bug.cgi?id=24346

 
 Does this mean it's a bug? :)
 tbh I'd like to try fixing it since I'm with that code atm.

There is a bug here yes.

The problem is it might be a compiler bug, or it could be a 
specification bug.

Generally we consider the implementation to win on differences between 
the compiler and specification for issues such as this.

Given that it does not appear to be harmful, no need to change the 
compiler :)