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85a59d40f1
Remove `#[rustc_allow_const_fn_ptr]` and add `#![feature(const_fn_fn_ptr_basics)]` `rustc_allow_const_fn_ptr` was a hack to work around the lack of an escape hatch for the "min `const fn`" checks in const-stable functions. Now that we have co-opted `allow_internal_unstable` for this purpose, we no longer need a bespoke attribute. Now this functionality is gated under `const_fn_fn_ptr_basics` (how concise!), and `#[allow_internal_unstable(const_fn_fn_ptr_basics)]` replaces `#[rustc_allow_const_fn_ptr]`. `const_fn_fn_ptr_basics` allows function pointer types to appear in the arguments and locals of a `const fn` as well as function pointer casts to be performed inside a `const fn`. Both of these were allowed in constants and statics already. Notably, this does **not** allow users to invoke function pointers in a const context. Presumably, we will use a nicer name for that (`const_fn_ptr`?). r? @oli-obk |
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|---|---|---|
| .. | ||
| check_consts | ||
| add_call_guards.rs | ||
| add_moves_for_packed_drops.rs | ||
| add_retag.rs | ||
| check_const_item_mutation.rs | ||
| check_packed_ref.rs | ||
| check_unsafety.rs | ||
| cleanup_post_borrowck.rs | ||
| const_prop.rs | ||
| copy_prop.rs | ||
| deaggregator.rs | ||
| dest_prop.rs | ||
| dump_mir.rs | ||
| early_otherwise_branch.rs | ||
| elaborate_drops.rs | ||
| generator.rs | ||
| inline.rs | ||
| instcombine.rs | ||
| instrument_coverage.rs | ||
| match_branches.rs | ||
| mod.rs | ||
| no_landing_pads.rs | ||
| nrvo.rs | ||
| promote_consts.rs | ||
| remove_noop_landing_pads.rs | ||
| remove_unneeded_drops.rs | ||
| required_consts.rs | ||
| rustc_peek.rs | ||
| simplify_branches.rs | ||
| simplify_comparison_integral.rs | ||
| simplify_try.rs | ||
| simplify.rs | ||
| uninhabited_enum_branching.rs | ||
| unreachable_prop.rs | ||
| validate.rs | ||