Deeply deny fn and raw ptrs in const generics #99651
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That bool argument did not get more readable by inverting its meaning 😆 That's preexisting, but maybe make the function private and expose two wrappers with explanatory names instead? |
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I only inverted it because I didn't want to come up with a better name for the boolean, but yeah I can split it into several functions. |
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…onst-generics, r=oli-obk
Deeply deny fn and raw ptrs in const generics
I think this is right -- just because we wrap a fn ptr in a wrapper type does not mean we should allow it in a const parameter.
We now reject both of these in the same way:
```
#![feature(adt_const_params)]
#[derive(Eq, PartialEq)]
struct Wrapper();
fn foo<const W: Wrapper>() {}
fn foo2<const F: fn()>() {}
```
This does regress one test (`src/test/ui/consts/refs_check_const_eq-issue-88384.stderr`), but I'm not sure it should've passed in the first place.
cc: `@b-naber` who introduced that test^
fixes rust-lang#99641
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…laumeGomez Rollup of 7 pull requests Successful merges: - rust-lang#94247 (Fix slice::ChunksMut aliasing) - rust-lang#99358 (Allow `ValTree::try_to_raw_bytes` on `u8` array) - rust-lang#99651 (Deeply deny fn and raw ptrs in const generics) - rust-lang#99710 (lint: add bad opt access internal lint) - rust-lang#99717 (Add some comments to the docs issue template to clarify) - rust-lang#99728 (Clean up HIR-based lifetime resolution) - rust-lang#99812 (Fix headings colors) Failed merges: r? `@ghost` `@rustbot` modify labels: rollup
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I think this is right -- just because we wrap a fn ptr in a wrapper type does not mean we should allow it in a const parameter.
We now reject both of these in the same way:
This does regress one test (
src/test/ui/consts/refs_check_const_eq-issue-88384.stderr), but I'm not sure it should've passed in the first place.cc: @b-naber who introduced that test^
fixes #99641