On Wednesday, 15 August 2018 at 09:21:29 UTC, Per Nordlöw wrote:
Have anybody thought about non-throwing variants of std.conv.to
typically named `tryTo`
similar to what Folly
https://github.com/facebook/folly/blob/master/folly/docs/Conv.md#non-throwing-interfaces
does, for instance, as
tryTo<int>(str).then([](int i) { use(i); });
?
Would it be sane to add these to std.conv alongside existing
std.conv.to so that underlying logic in std.conv.to can be
reused?
If so, AFAICT, existing std.conv.to should be implemented on
top of std.conv.tryTo.
Well, for now you can use `ifThrown` from std.exception:
https://dlang.org/phobos/std_exception.html#ifThrown
---
"foo".to!int.ifThrown(42)
---
https://run.dlang.io/is/nlZKOw
Usage of optionals/nullables is sadly not very common in Phobos
and I think if we want everything to work nicely, we probably
have to start a new standard library (or do massive refactorings
of the existing one.)
