Formally define repr(u32, i8, etc...) and repr(C) on enums with payloads - #2195
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Formally define the enum
#[repr(u32, i8, etc..)]and#[repr(C)]attributes to force a non-C-like enum to have defined layouts. This serves two purposes: allowing low-level Rust code to independently initialize the tag and payload, and allowing C(++) to safely manipulate these types.Rendered