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* feat: add box templates and box type This commit adds an implementation of Boxes, memory manged heap allocated values. Boxes are implemented as C pointers, with no additional structure but are treated as structs in Carp. To facilitate this, we need to add them as a clause to our special type emissions (TypesToC) as they'd otherwise be emitted like other struct types. Co-authored-by: Veit Heller <[email protected]> * fix: slight memory management fix for Box Make sure we free the box! * test: add tests for box (including memory checks) * Revert "fix: Ignore clang nitpick" This reverts commit 70ec6d4. * fix: update example/functor.carp Now that a builtin type named Box exists, the definitions in this file cause a conflict. I've renamed the "Box" type in the functor example to remove the conflict. * feat: add Box.peek Box.peek allows users to transform a reference to a box into a a reference to the box's contained value. The returned reference will have the same lifetime as the box. This function allows callers to manipulate the value in a box without re-allocation, for example: ```clojure (deftype Num [val Int]) (let-do [box (Box.init (Num.init 0))] (Num.set-val! (Box.peek &box) 1) @(Num.val (Box.peek &box))) ``` This commit also includes tests for Box.peek. Co-authored-by: TimDeve <[email protected]> * feat: add c-name meta key for code emission overrides This commit adds a new special compiler meta key, c-name, that enables users to explicitly c the C identifier Carp should emit for a given symbol. For now, it is only explicitly supported for Def and Defn forms. For example: ```clojure (defn foo-bar [] 2) (c-name foo-bar "foo_bar") ``` Will cause foo-bar in emitted C code to be emitted as `foo_bar` instead of `foo_MINUS_bar`. I've also refactored some of the meta code to be a bit more principled about keys that are understood by the compiler. * docs: update CInterop docs Adds a section on using the c-name meta field to override identifiers exclusively defined in Carp. Also performs some minor editorial. Co-authored-by: Veit Heller <[email protected]> Co-authored-by: Erik Sved盲ng <[email protected]> Co-authored-by: TimDeve <[email protected]>
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