Request to add retry() feature to Try::Tiny

[cobber]

Hi Jesse,

I'd like to add a "retry" function to Try::Tiny.

My inspiration came while reworking the error handling in one of my projects. I kept ending up with the following pattern:

RETRY:
try {
    ...
} catch {
    # check what might have caused the error
    # try to fix what broke
    goto RETRY if $try_again;
};

Ugly!

This patch makes it possible to simply call retry:

try {
    ...
} catch {
    # check what might have caused the error
    # try to fix what broke
    retry if $try_again;
};

It works much like skip() in Test::More - but doesn't require the user to set up a label and it uses perl's redo function to unwind the stack properly.

I hope you like it!

Steve

[doy]

I don't think this is worth adding to Try::Tiny itself (it's a bit of an edge case). It wouldn't be hard to write a wrapper module that did this though, and I think that's where this functionality would belong.