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Auto merge of rust-lang#87768 - rust-lang:core-features-cleanup, r=dt…
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…olnay

Core features cleanup

This sorts and categorizes the `#![features]` in `core` and removes unused ones.

This is part of rust-lang#87766

The following feature attributes were unnecessary and are removed:

```diff
// Library features:
-#![feature(bool_to_option)]
-#![feature(char_indices_offset)]
-#![feature(pin_deref_mut)]
-#![feature(str_split_as_str)]
-#![feature(str_split_inclusive_as_str)]

// Language features:
-#![feature(arbitrary_self_types)]
-#![feature(custom_inner_attributes)]
-#![feature(nll)]
```
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bors committed Aug 5, 2021
2 parents 61a941b + cdf83c0 commit 2f07ae4
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Showing 2 changed files with 60 additions and 61 deletions.
1 change: 0 additions & 1 deletion library/core/src/internal_macros.rs
Original file line number Diff line number Diff line change
Expand Up @@ -77,7 +77,6 @@ macro_rules! forward_ref_op_assign {
}

/// Create a zero-size type similar to a closure type, but named.
#[unstable(feature = "std_internals", issue = "none")]
macro_rules! impl_fn_for_zst {
($(
$( #[$attr: meta] )*
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120 changes: 60 additions & 60 deletions library/core/src/lib.rs
Original file line number Diff line number Diff line change
Expand Up @@ -61,115 +61,115 @@
test(attr(allow(dead_code, deprecated, unused_variables, unused_mut)))
)]
#![no_core]
//
// Lints:
#![deny(rust_2021_incompatible_or_patterns)]
#![deny(unsafe_op_in_unsafe_fn)]
#![warn(deprecated_in_future)]
#![warn(missing_docs)]
#![warn(missing_debug_implementations)]
#![warn(missing_docs)]
#![allow(explicit_outlives_requirements)]
#![feature(rustc_allow_const_fn_unstable)]
#![feature(allow_internal_unstable)]
#![feature(arbitrary_self_types)]
#![feature(asm)]
#![feature(bool_to_option)]
#![feature(cfg_target_has_atomic)]
#![feature(const_heap)]
//
// Library features for const fns:
#![feature(const_align_of_val)]
#![feature(const_alloc_layout)]
#![feature(const_arguments_as_str)]
#![feature(const_assert_type)]
#![feature(const_discriminant)]
#![feature(const_caller_location)]
#![feature(const_cell_into_inner)]
#![feature(const_intrinsic_copy)]
#![feature(const_intrinsic_forget)]
#![feature(const_float_classify)]
#![feature(const_discriminant)]
#![feature(const_float_bits_conv)]
#![feature(const_int_unchecked_arith)]
#![feature(const_float_classify)]
#![feature(const_heap)]
#![feature(const_inherent_unchecked_arith)]
#![feature(const_mut_refs)]
#![feature(const_refs_to_cell)]
#![feature(const_panic)]
#![feature(const_pin)]
#![cfg_attr(bootstrap, feature(const_fn_union))]
#![feature(const_impl_trait)]
#![feature(const_fn_floating_point_arithmetic)]
#![feature(const_fn_fn_ptr_basics)]
#![feature(const_fn_trait_bound)]
#![feature(const_int_unchecked_arith)]
#![feature(const_intrinsic_copy)]
#![feature(const_intrinsic_forget)]
#![feature(const_likely)]
#![feature(const_maybe_uninit_as_ptr)]
#![feature(const_maybe_uninit_assume_init)]
#![feature(const_option)]
#![feature(const_precise_live_drops)]
#![feature(const_pin)]
#![feature(const_ptr_offset)]
#![feature(const_ptr_offset_from)]
#![feature(const_ptr_read)]
#![feature(const_ptr_write)]
#![feature(const_raw_ptr_comparison)]
#![feature(const_raw_ptr_deref)]
#![feature(const_size_of_val)]
#![feature(const_slice_from_raw_parts)]
#![feature(const_slice_ptr_len)]
#![feature(const_size_of_val)]
#![feature(const_swap)]
#![feature(const_align_of_val)]
#![feature(const_type_id)]
#![feature(const_type_name)]
#![feature(const_likely)]
#![feature(const_unreachable_unchecked)]
#![feature(const_maybe_uninit_assume_init)]
#![feature(const_maybe_uninit_as_ptr)]
#![feature(custom_inner_attributes)]
#![feature(duration_consts_2)]
#![feature(ptr_metadata)]
#![feature(slice_ptr_get)]
#![feature(variant_count)]
//
// Language features:
#![feature(abi_unadjusted)]
#![feature(allow_internal_unstable)]
#![feature(asm)]
#![feature(associated_type_bounds)]
#![feature(auto_traits)]
#![feature(cfg_target_has_atomic)]
#![feature(const_fn_floating_point_arithmetic)]
#![feature(const_fn_fn_ptr_basics)]
#![feature(const_fn_trait_bound)]
#![cfg_attr(bootstrap, feature(const_fn_transmute))]
#![cfg_attr(bootstrap, feature(const_fn_union))]
#![feature(const_impl_trait)]
#![feature(const_mut_refs)]
#![feature(const_panic)]
#![feature(const_precise_live_drops)]
#![feature(const_raw_ptr_deref)]
#![feature(const_refs_to_cell)]
#![feature(decl_macro)]
#![feature(doc_cfg)]
#![feature(doc_notable_trait)]
#![feature(duration_consts_2)]
#![feature(exhaustive_patterns)]
#![feature(extern_types)]
#![feature(fundamental)]
#![feature(intra_doc_pointers)]
#![feature(intrinsics)]
#![feature(lang_items)]
#![feature(link_llvm_intrinsics)]
#![feature(llvm_asm)]
#![feature(min_specialization)]
#![feature(negative_impls)]
#![feature(never_type)]
#![feature(nll)]
#![feature(exhaustive_patterns)]
#![feature(no_core)]
#![feature(auto_traits)]
#![feature(pin_deref_mut)]
#![feature(no_coverage)] // rust-lang/rust#84605
#![feature(no_niche)] // rust-lang/rust#68303
#![feature(platform_intrinsics)]
#![feature(prelude_import)]
#![feature(ptr_metadata)]
#![feature(repr_simd, platform_intrinsics)]
#![feature(repr_simd)]
#![feature(rustc_allow_const_fn_unstable)]
#![feature(rustc_attrs)]
#![feature(simd_ffi)]
#![feature(min_specialization)]
#![feature(staged_api)]
#![feature(std_internals)]
#![feature(stmt_expr_attributes)]
#![feature(str_split_as_str)]
#![feature(str_split_inclusive_as_str)]
#![feature(char_indices_offset)]
#![feature(trait_alias)]
#![feature(transparent_unions)]
#![feature(try_blocks)]
#![feature(unboxed_closures)]
#![feature(unsized_fn_params)]
#![feature(variant_count)]
#![feature(tbm_target_feature)]
#![feature(sse4a_target_feature)]
#![feature(arm_target_feature)]
#![feature(powerpc_target_feature)]
#![feature(mips_target_feature)]
//
// Target features:
#![feature(aarch64_target_feature)]
#![feature(wasm_target_feature)]
#![feature(adx_target_feature)]
#![feature(arm_target_feature)]
#![feature(avx512_target_feature)]
#![feature(cmpxchg16b_target_feature)]
#![feature(rtm_target_feature)]
#![feature(f16c_target_feature)]
#![feature(hexagon_target_feature)]
#![cfg_attr(bootstrap, feature(const_fn_transmute))]
#![feature(abi_unadjusted)]
#![feature(adx_target_feature)]
#![feature(associated_type_bounds)]
#![feature(const_caller_location)]
#![feature(slice_ptr_get)]
#![feature(no_niche)] // rust-lang/rust#68303
#![feature(no_coverage)] // rust-lang/rust#84605
#![deny(unsafe_op_in_unsafe_fn)]
#![deny(rust_2021_incompatible_or_patterns)]
#![feature(mips_target_feature)]
#![feature(powerpc_target_feature)]
#![feature(rtm_target_feature)]
#![feature(sse4a_target_feature)]
#![feature(tbm_target_feature)]
#![feature(wasm_target_feature)]

// allow using `core::` in intra-doc links
#[allow(unused_extern_crates)]
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