On 12/04/2015 03:24 AM, Tofu Ninja wrote:
On Friday, 4 December 2015 at 02:02:48 UTC, Timon Gehr wrote:
On 12/04/2015 02:37 AM, Mike wrote:
On Friday, 4 December 2015 at 01:04:33 UTC, Idan Arye wrote:
People are going to hate me, but http://dpaste.dzfl.pl/851d1d1f5e4b
Doesn't seem to scale to member access:
http://dpaste.dzfl.pl/37193377524c
/d649/f987.d-mixin-3(7): Error: 'this' is only defined in non-static
member functions, not fun
Is there a way to make it work?
Mike
template namespace(string code,alias a=void){
mixin(code);
}
struct List{
int x;
alias stable = namespace!(q{
void fun(){
import std.stdio;
writeln(this.x);
}
},x);
}
void main(){
List lst;
lst.stable.fun();
}
:o)
WTF! Why does that even work! That is strait madness! When the code gets
mixed into the namespace template, x would have been re-aliased to a, it
would have made sense to write "writeln(a)" which works as well... but
"writeln(this.x)", wut, how... that makes no sense...
http://dlang.org/spec/template.html#nested-templates
"If a template has a template alias parameter, and is instantiated with
a local symbol, the instantiated function will implicitly become nested
in order to access runtime data of the given local symbol."
You are probably relying on this feature in a significant portion of
your code, especially for lambda template arguments. It does not really
cover all cases where one would like to have nested instantiation though.
