On Monday, 22 May 2017 at 12:00:30 UTC, Nick Treleaven wrote:
//FIXME: uniqueToString should return @nogc UniquePtr!(const
char[])
import std.conv;
alias uniqueToString = to!(const char[]);
class MessageEx(E, sinkArgs...) : E
{
this(A...)(A args)
{
super(args);
}
//FIXME: delegate not @nogc
/*@nogc*/ override void toString(scope void delegate(in
char[]) sink) const
{
foreach (a; sinkArgs)
sink(uniqueToString(a));
}
}
unittest
{
auto x = 7;
throw new MessageEx!(Exception, "x = ", x)(null);
}
The result of uniqueToString would free any memory allocated
after the call to sink.
Heh, I actually ran into this problem earlier today and just saw
this post https://issues.dlang.org/show_bug.cgi?id=17420
Weird coincidence.
