On Tuesday, 5 March 2013 at 08:04:12 UTC, Andrej Mitrovic wrote:
On Tuesday, 5 March 2013 at 07:53:15 UTC, cal wrote:
I'm confused about this:
import std.conv;
void main()
{
enum s = "`1`.to!int;";
enum c = __traits(compiles, mixin("{auto a = new
"~s~";}")); // line 1
mixin("auto a = "~s~";");
// line 2
}
This does not compile, giving errors about instantiating
std.conv.to!(int).to!(string). If I switch the order of lines
1 and 2 it compiles. Is this a bug or something I don't
understand about __traits(compiles)?
You can't test declarations inside of __traits(compiles), only
expressions. It's in the docs:
http://dlang.org/traits.html#compiles
The errormessage is rather cryptic though.. Makes it look like
there is something with conv rather than compiles.
