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Odin's `using` comes from Pascal's `with`, of which was block based. Odin's `using` can be applied to a load more than just scopes: https://odin-lang.org/docs/

• hota_mazi 7y ago
  Yes, the general idea is not new but the devil is in the details. As far as I can tell, Odin's `using` is applicable in the same areas as Kotlin's, but I still favor Kotlin's scoped version. When I see "using foo;" in Odin, it's not quite obvious to me where the scope of applicability is. Any reason why you didn't do something like entity.use { // "this" is now the entity instance } // back to your regular "this" ?
  • gingerBill 7y ago
    You can easily do the same in Odin, if you would like. However, `using` works for a lot more than that just this. `using` allows for many for type system features beyond a basic scope import like Pascal's with. `using` can be applied to procedure parameters, struct field declarations allow for subtype polymorphism (even of pointers), scope imports, and more. Koltin's approach is limited to purely the same Pascal's `with` allowed. But if you want to be clear: { using entity; // the fields of "entity" are not usable in this scope x = 123; } entity.x = 123;
    • gingerBill 7y ago
      * are now usable typo