add a NonManaged kind #10869
Labels
A-type-system
Area: Type system
E-easy
Call for participation: Easy difficulty. Experience needed to fix: Not much. Good first issue.
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It's unclear if this will be necessary. It's a problem for a garbage collector implementation to deal with. |
flip1995
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Jun 30, 2023
[`allow_attributes`, `allow_attributes_without_reason`]: Ignore attributes from procedural macros I use `lint_reasons` and `clap`, which is a bit overzealous when it comes to preventing warnings in its macros; it uses a ton of allow attributes on everything to, as ironic as it is, silence warnings. These two now ignore anything from procedural macros. PS, I think `allow_attributes.rs` should be merged with `attrs.rs` in the future. fixes rust-lang#10377 changelog: [`allow_attributes`, `allow_attributes_without_reason`]: Ignore attributes from procedural macros
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This is needed to implemented weak pointers for reference counted pointers without adding explicit support in the compiler. They unable to allocate/deallocate with
~Tbecause the object and allocation may have to be separately freed.A dead simple implementation: https://github.com/thestinger/rust-core/blob/master/core/weak.rs
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