Forget Borrow Checkers: C3 Solved Memory Lifetimes with Scopes

Re:Forget Borrow Checkers: C3 Solved Memory Lifetimes with S... by norman784 on Monday July 14, 2025 @09:18AM (#44559852)

The issue, most commonly noted by devs, with proc macros is that it slows down the incremental compilation times, because proc macros are recomputed each time.

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Re:Forget Borrow Checkers: C3 Solved Memory Lifetimes with S... by nextaccountic on Monday July 14, 2025 @08:47PM (#44566829)

There's no reason proc macros invocations can't themselves be cached. For the few macros that are not idempotent (an idea that is itself absurd) an attribute like `#[proc_macro_non_cacheable]` should be available

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