• Arun Chandrasekaran (19/19) Dec 06 2018 I'm trying to get the current function name and apparently the
• Neia Neutuladh (20/24) Dec 06 2018 Referring to nested functions is weird.
• Sepheus (3/22) Dec 07 2018 Looks like this will do the trick https://run.dlang.io/is/cX3S37

Arun Chandrasekaran <aruncxy gmail.com> writes:

I'm trying to get the current function name and apparently the 
commented line errors out.

What am I doing wrong?

https://run.dlang.io/is/EGsRU2

```


void main()
{
     import std.experimental.all;
     void foo() {
         // __traits(identifier, mixin(__FUNCTION__)).writeln; // 
compilation error
         __FUNCTION__.split('.')[$-1].writeln;
     }
     __traits(identifier, mixin(__FUNCTION__)).writeln;
     __FUNCTION__.split('.')[$-1].writeln;
     foo();
}
```

Neia Neutuladh <neia ikeran.org> writes:

On Fri, 07 Dec 2018 02:37:34 +0000, Arun Chandrasekaran wrote:
 I'm trying to get the current function name and apparently the commented
 line errors out.
 
 What am I doing wrong?

Referring to nested functions is weird.

Dotted identifiers let you traverse aggregates. Modules, C++ namespaces 
(ugh), enums, structs, identifiers, unions, that sort of thing. They 
*don't* let you traverse functions to refer to symbols defined inside 
those functions.

*Separately*, nested functions have names that look like dotted 
identifiers. But you can't use that to refer to them, because that would 
make it *very* awkward to do symbol lookup.

For example:

    struct Foo { int bar; }
    Foo test()
    {
        void bar() { }
        writeln(&test.bar);
        return Foo();
    }

Should the `writeln` line invoke the `test` function, get the `bar` field 
from its result, and take its address? Or should it take the address of 
the nested function `bar`?

Sepheus <noreply sepheus.co.uk> writes:

On Friday, 7 December 2018 at 02:37:34 UTC, Arun Chandrasekaran 
wrote:
 I'm trying to get the current function name and apparently the 
 commented line errors out.

 What am I doing wrong?

 https://run.dlang.io/is/EGsRU2

 ```


 void main()
 {
     import std.experimental.all;
     void foo() {
         // __traits(identifier, mixin(__FUNCTION__)).writeln; 
 // compilation error
         __FUNCTION__.split('.')[$-1].writeln;
     }
     __traits(identifier, mixin(__FUNCTION__)).writeln;
     __FUNCTION__.split('.')[$-1].writeln;
     foo();
 }
 ```

Looks like this will do the trick https://run.dlang.io/is/cX3S37