• Jonathan M Davis <jmdavisprog gmail.com> Jul 04 2010
• "Simen kjaeraas" <simen.kjaras gmail.com> Jul 04 2010
• "Simen kjaeraas" <simen.kjaras gmail.com> Jul 04 2010
• Philippe Sigaud <philippe.sigaud gmail.com> Jul 04 2010

Jonathan M Davis <jmdavisprog gmail.com> writes:

MemberFunctionsTuple() from std.traits will return the list of names of member 
function, and FieldTypeTuple from std.traits will return the list of the
_types_ 
of the member variables. But I don't see a function that returns the list of
the 
_names_ of the member variables. Am I just blind, or does such a function not 
currently exist?

- Jonathan M Davis

"Simen kjaeraas" <simen.kjaras gmail.com> writes:

Jonathan M Davis <jmdavisprog gmail.com> wrote:

 MemberFunctionsTuple() from std.traits will return the list of names of  
 member
 function, and FieldTypeTuple from std.traits will return the list of the  
 _types_
 of the member variables. But I don't see a function that returns the  
 list of the
 _names_ of the member variables. Am I just blind, or does such a  
 function not
 currently exist?


__traits[1] is your friend in these matters.

__traits( allMembers, Foo ) returns a tuple of string literals, each of
which corresponds to a member of Foo.

[1] http://www.digitalmars.com/d/2.0/traits.html

-- 
Simen

"Simen kjaeraas" <simen.kjaras gmail.com> writes:

Simen kjaeraas <simen.kjaras gmail.com> wrote:

 Jonathan M Davis <jmdavisprog gmail.com> wrote:

 MemberFunctionsTuple() from std.traits will return the list of names of  
 member
 function, and FieldTypeTuple from std.traits will return the list of  
 the _types_
 of the member variables. But I don't see a function that returns the  
 list of the
 _names_ of the member variables. Am I just blind, or does such a  
 function not
 currently exist?


 __traits[1] is your friend in these matters.

 __traits( allMembers, Foo ) returns a tuple of string literals, each of
 which corresponds to a member of Foo.


If you prefer the temmplated way, here's a FieldNameTuple template:

template FieldNameTuple( T ) {
     enum FieldNameTuple = __traits( allMembers, T );
}

-- 
Simen

Philippe Sigaud <philippe.sigaud gmail.com> writes:

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On Sun, Jul 4, 2010 at 12:55, Simen kjaeraas <simen.kjaras gmail.com> wrote:

 __traits[1] is your friend in these matters.
 __traits( allMembers, Foo ) returns a tuple of string literals, each of
 which corresponds to a member of Foo.





auto ioMembers = __traits(allMembers, std.stdio);

It also contains the unittests... Hmm, I wonder what one can do with that.


Philippe

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<div class=3D"gmail_quote">On Sun, Jul 4, 2010 at 12:55, Simen kjaeraas <sp=
an dir=3D"ltr">&lt;<a href=3D"mailto:simen.kjaras gmail.com">simen.kjaras g=
mail.com</a>&gt;</span> wrote:<br><blockquote class=3D"gmail_quote" style=
=3D"margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); p=
adding-left: 1ex;">
<div><div></div><div class=3D"h5"><br><blockquote class=3D"gmail_quote" sty=
le=3D"margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204);=
 padding-left: 1ex;">
__traits[1] is your friend in these matters.<br>
<br>
__traits( allMembers, Foo ) returns a tuple of string literals, each of<br>
which corresponds to a member of Foo.<br>
</blockquote><br></div></div></blockquote><div><br>Somehting I discovered t=
oday: it works for module names, also:<br><br>auto ioMembers =3D __traits(a=
llMembers, std.stdio);<br><br>It also contains the unittests... Hmm, I wond=
er what one can do with that.<br>
<br><br>Philippe <br></div></div>

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