Neat 0.4.0: Let's try something else
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Introducing breakelse!
If inside an if block, breakelse will jump to the else block.
If there is no else block, it will jump to the end of the if.
? has been expanded: if the expression type contains an :else, it will cause a breakelse. This is a shortcut for .case(:else: breakelse).
The .else(X) expression will directly replace the :else case with X. This is a shortcut for .case(:else: X).
The idea is to augment error handling with something like null: a type that represents "the operation failed, but in a normal way."