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by masklinn
717 days ago
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Yes. > I can't tell if I'm amazed or terrified. The rule is very simple and obvious, and the compiler will yell at you if you get it wrong. It's also very useful and even critical of how expression-oriented the language is: an `if/else` or a match statement must typecheck, all branches have to have the same type. It's obvious if you're using it as an expression, but it doesn't go away if you're using it for the side-effect (as an imperative conditional/switch) and then things can get more dicey as the expressions in each branch can have different types. `;` solves that by making every branch `()`-valued. |
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