Option 3 looks prettiest to me, but I like that in Option 1 the
error-raising code comes before the error-handling code (based on
experience with other languages). This might not be an issue in practice.
I am not sure how I like Option 3 with a more complex trap block:
OutOfKittens.trap(|t| {
OrderFailure.trap(|t| notify_support()).in {
order_more_kittens();
}
UseAardvarksInstead
}).in {
do_some_stuff();
that_might_raise();
out_of_kittens();
}
Compare this to some "ideal" syntax:
protect {
do_some_stuff();
that_might_raise();
out_of_kittens();
} handle OutOfKittens(t) {
protect {
order_more_kittens();
} handle OrderFailure(t) {
notify_support();
}
UseAardvarksInstead
)
Gareth
_______________________________________________
Rust-dev mailing list
[email protected]
https://mail.mozilla.org/listinfo/rust-dev
