On Tuesday, 27 September 2016 at 10:55:47 UTC, John Colvin wrote:
but we don't (yet) have catch else, which is harder to
immitate. Options are:
A) the else clause is nothrow (in which case it can just go
last inside the try)
or
B) store a flag and have to use immitation finally:
{
/*finally*/ scope (exit) {}
bool exceptionThrown = false;
try {
doSomething();
} catch (Exception e) {
exceptionThrown = true;
}
/*else*/ if (!exceptionThrown) {}
}
C) Use collectException:
import std.exception;
auto ex = collectException!MyException(doSomething());
if (ex) handleException(ex);
else {
// doSomething succeeded
...
}
collectException could be improved to catch more than one type of
exception, returning the common type. Alternatively it could
maybe return a tuple of the exception and the 1-based index of
which type of exception was thrown.
