On 2/11/2014 6:35 PM, Sean Kelly wrote:
Throw a static exception (maybe even derived directly from Throwable),
similar to OutOfMemory, with a custom toString. That should eliminate
the formatting you don't like and will prevent the trace from occurring
as well (see rt/deh.d in Druntime--the trace isn't run if you throw
typeid(t).init.ptr).
Hmm, my custom toString isn't being executed. Am I doing something wrong
here? Same result if I inherit direct from Throwable instead of Exception.
class Fail : Exception
{
private this()
{
super(null);
}
private static Fail opCall(string msg, string file=__FILE__, int
line=__LINE__)
{
auto f = cast(Fail) cast(void*) Fail.classinfo.init;
f.msg = msg;
f.file = file;
f.line = line;
return f;
}
override string toString()
{
writeln("In Fail.toString()");
return "someapp: ERROR: "~msg;
}
}
void fail(string msg, string file=__FILE__, int line=__LINE__)
{
throw Fail(msg, file, line);
}
void main()
{
fail("Shit/fan collision detected.");
}
Output:
[email protected](106): Shit/fan collision detected.
