Does Scala even need the `try` keyword, and must `catch` be a keyword? I'd be happy to call `.catch(partialFunction)` directly on an expression or code block. It could be implemented as an extension method.
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I need to play around. Don't trust there is a lawful conversion for any expr. For ex : (throw new Exception).catch(???)
That would work exactly the same as try { throw new Exception() } catch { ... }
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(except that in Scala 2 it would require an additional allocation, and you would get an additional stack frame...)
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