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Remove unused/unnecessary features #119968

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Jan 26, 2024
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2 changes: 0 additions & 2 deletions compiler/rustc_ast/src/lib.rs
Original file line number Diff line number Diff line change
Expand Up @@ -13,13 +13,11 @@
#![feature(rustdoc_internals)]
#![feature(associated_type_bounds)]
#![feature(box_patterns)]
#![feature(const_trait_impl)]
#![feature(if_let_guard)]
#![feature(let_chains)]
#![feature(min_specialization)]
#![feature(negative_impls)]
#![feature(stmt_expr_attributes)]
#![recursion_limit = "256"]
#![deny(rustc::untranslatable_diagnostic)]
#![deny(rustc::diagnostic_outside_of_impl)]

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2 changes: 0 additions & 2 deletions compiler/rustc_ast_lowering/src/lib.rs
Original file line number Diff line number Diff line change
Expand Up @@ -33,10 +33,8 @@
#![allow(internal_features)]
#![feature(rustdoc_internals)]
#![doc(rust_logo)]
#![feature(if_let_guard)]
#![feature(box_patterns)]
#![feature(let_chains)]
#![recursion_limit = "256"]
#![deny(rustc::untranslatable_diagnostic)]
#![deny(rustc::diagnostic_outside_of_impl)]

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1 change: 0 additions & 1 deletion compiler/rustc_ast_passes/src/lib.rs
Original file line number Diff line number Diff line change
Expand Up @@ -11,7 +11,6 @@
#![feature(if_let_guard)]
#![feature(iter_is_partitioned)]
#![feature(let_chains)]
#![recursion_limit = "256"]
#![deny(rustc::untranslatable_diagnostic)]
#![deny(rustc::diagnostic_outside_of_impl)]

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2 changes: 0 additions & 2 deletions compiler/rustc_ast_pretty/src/lib.rs
Original file line number Diff line number Diff line change
Expand Up @@ -4,8 +4,6 @@
#![deny(rustc::untranslatable_diagnostic)]
#![deny(rustc::diagnostic_outside_of_impl)]
#![feature(box_patterns)]
#![feature(let_chains)]
#![recursion_limit = "256"]

mod helpers;
pub mod pp;
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3 changes: 0 additions & 3 deletions compiler/rustc_borrowck/src/lib.rs
Original file line number Diff line number Diff line change
Expand Up @@ -8,12 +8,9 @@
#![feature(let_chains)]
#![feature(min_specialization)]
#![feature(never_type)]
#![feature(lazy_cell)]
#![feature(rustc_attrs)]
#![feature(stmt_expr_attributes)]
#![feature(trusted_step)]
#![feature(try_blocks)]
#![recursion_limit = "256"]

#[macro_use]
extern crate rustc_middle;
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3 changes: 0 additions & 3 deletions compiler/rustc_builtin_macros/src/lib.rs
Original file line number Diff line number Diff line change
Expand Up @@ -5,17 +5,14 @@
#![feature(rustdoc_internals)]
#![doc(rust_logo)]
#![doc(html_root_url = "https://doc.rust-lang.org/nightly/nightly-rustc/")]
#![feature(array_windows)]
#![feature(assert_matches)]
#![feature(box_patterns)]
#![feature(decl_macro)]
#![feature(if_let_guard)]
#![feature(is_sorted)]
#![feature(let_chains)]
#![feature(lint_reasons)]
#![feature(proc_macro_internals)]
#![feature(proc_macro_quote)]
#![recursion_limit = "256"]

extern crate proc_macro;

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2 changes: 0 additions & 2 deletions compiler/rustc_codegen_llvm/src/lib.rs
Original file line number Diff line number Diff line change
Expand Up @@ -14,9 +14,7 @@
#![feature(iter_intersperse)]
#![feature(let_chains)]
#![feature(min_specialization)]
#![feature(never_type)]
#![feature(impl_trait_in_assoc_type)]
#![recursion_limit = "256"]
#![deny(rustc::untranslatable_diagnostic)]
#![deny(rustc::diagnostic_outside_of_impl)]

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2 changes: 0 additions & 2 deletions compiler/rustc_codegen_ssa/src/lib.rs
Original file line number Diff line number Diff line change
Expand Up @@ -7,10 +7,8 @@
#![feature(if_let_guard)]
#![feature(let_chains)]
#![feature(negative_impls)]
#![feature(never_type)]
#![feature(strict_provenance)]
#![feature(try_blocks)]
#![recursion_limit = "256"]

//! This crate contains codegen code that is used by all codegen backends (LLVM and others).
//! The backend-agnostic functions of this crate use functions defined in various traits that
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7 changes: 0 additions & 7 deletions compiler/rustc_const_eval/src/lib.rs
Original file line number Diff line number Diff line change
Expand Up @@ -11,20 +11,13 @@ Rust MIR: a lowered representation of Rust.
#![feature(assert_matches)]
#![feature(box_patterns)]
#![feature(decl_macro)]
#![feature(exact_size_is_empty)]
#![feature(let_chains)]
#![feature(map_try_insert)]
#![feature(min_specialization)]
#![feature(slice_ptr_get)]
#![feature(option_get_or_insert_default)]
#![feature(never_type)]
#![feature(trait_alias)]
#![feature(trusted_len)]
#![feature(trusted_step)]
#![feature(try_blocks)]
#![feature(yeet_expr)]
#![feature(if_let_guard)]
#![recursion_limit = "256"]

#[macro_use]
extern crate tracing;
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2 changes: 1 addition & 1 deletion compiler/rustc_data_structures/src/lib.rs
Original file line number Diff line number Diff line change
Expand Up @@ -10,6 +10,7 @@
#![allow(internal_features)]
#![allow(rustc::default_hash_types)]
#![allow(rustc::potential_query_instability)]
#![cfg_attr(not(parallel_compiler), feature(cell_leak))]
#![deny(rustc::diagnostic_outside_of_impl)]
#![deny(rustc::untranslatable_diagnostic)]
#![deny(unsafe_op_in_unsafe_fn)]
Expand All @@ -18,7 +19,6 @@
#![feature(allocator_api)]
#![feature(array_windows)]
#![feature(auto_traits)]
#![feature(cell_leak)]
#![feature(cfg_match)]
#![feature(core_intrinsics)]
#![feature(extend_one)]
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2 changes: 0 additions & 2 deletions compiler/rustc_driver_impl/src/lib.rs
Original file line number Diff line number Diff line change
Expand Up @@ -9,11 +9,9 @@
#![feature(rustdoc_internals)]
#![allow(internal_features)]
#![feature(decl_macro)]
#![feature(lazy_cell)]
#![feature(let_chains)]
#![feature(panic_update_hook)]
#![feature(result_flattening)]
#![recursion_limit = "256"]
#![deny(rustc::untranslatable_diagnostic)]
#![deny(rustc::diagnostic_outside_of_impl)]

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1 change: 0 additions & 1 deletion compiler/rustc_error_messages/src/lib.rs
Original file line number Diff line number Diff line change
@@ -1,6 +1,5 @@
#![doc(rust_logo)]
#![feature(rustdoc_internals)]
#![feature(let_chains)]
#![feature(lazy_cell)]
#![feature(rustc_attrs)]
#![feature(type_alias_impl_trait)]
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3 changes: 1 addition & 2 deletions compiler/rustc_errors/src/lib.rs
Original file line number Diff line number Diff line change
Expand Up @@ -8,15 +8,14 @@
#![feature(array_windows)]
#![feature(associated_type_defaults)]
#![feature(box_into_inner)]
#![feature(box_patterns)]
#![feature(extract_if)]
#![feature(if_let_guard)]
#![feature(let_chains)]
#![feature(negative_impls)]
#![feature(never_type)]
#![feature(rustc_attrs)]
#![feature(yeet_expr)]
#![feature(try_blocks)]
#![feature(box_patterns)]
#![feature(error_reporter)]
#![allow(incomplete_features)]
#![allow(internal_features)]
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2 changes: 0 additions & 2 deletions compiler/rustc_expand/src/lib.rs
Original file line number Diff line number Diff line change
Expand Up @@ -9,9 +9,7 @@
#![feature(proc_macro_diagnostic)]
#![feature(proc_macro_internals)]
#![feature(proc_macro_span)]
#![feature(rustc_attrs)]
#![feature(try_blocks)]
#![recursion_limit = "256"]
#![deny(rustc::untranslatable_diagnostic)]
#![allow(internal_features)]

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1 change: 0 additions & 1 deletion compiler/rustc_hir/src/lib.rs
Original file line number Diff line number Diff line change
Expand Up @@ -9,7 +9,6 @@
#![feature(never_type)]
#![feature(rustc_attrs)]
#![feature(variant_count)]
#![recursion_limit = "256"]
#![deny(rustc::untranslatable_diagnostic)]
#![deny(rustc::diagnostic_outside_of_impl)]
#![allow(internal_features)]
Expand Down
3 changes: 0 additions & 3 deletions compiler/rustc_hir_analysis/src/lib.rs
Original file line number Diff line number Diff line change
Expand Up @@ -60,7 +60,6 @@ This API is completely unstable and subject to change.
#![doc(rust_logo)]
#![feature(rustdoc_internals)]
#![allow(internal_features)]
#![feature(box_patterns)]
#![feature(control_flow_enum)]
#![feature(if_let_guard)]
#![feature(is_sorted)]
Expand All @@ -71,8 +70,6 @@ This API is completely unstable and subject to change.
#![feature(lazy_cell)]
#![feature(slice_partition_dedup)]
#![feature(try_blocks)]
#![feature(type_alias_impl_trait)]
#![recursion_limit = "256"]

#[macro_use]
extern crate tracing;
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2 changes: 1 addition & 1 deletion compiler/rustc_hir_typeck/src/check.rs
Original file line number Diff line number Diff line change
Expand Up @@ -72,7 +72,7 @@ pub(super) fn check_fn<'a, 'tcx>(
let inputs_fn = fn_sig.inputs().iter().copied();
for (idx, (param_ty, param)) in inputs_fn.chain(maybe_va_list).zip(body.params).enumerate() {
// Check the pattern.
let ty: Option<&hir::Ty<'_>> = try { inputs_hir?.get(idx)? };
let ty: Option<&hir::Ty<'_>> = inputs_hir.and_then(|h| h.get(idx));
let ty_span = ty.map(|ty| ty.span);
fcx.check_pat_top(param.pat, param_ty, ty_span, None, None);
if param.pat.is_never_pattern() {
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1 change: 0 additions & 1 deletion compiler/rustc_hir_typeck/src/lib.rs
Original file line number Diff line number Diff line change
Expand Up @@ -5,7 +5,6 @@
#![feature(box_patterns)]
#![feature(min_specialization)]
#![feature(control_flow_enum)]
#![recursion_limit = "256"]

#[macro_use]
extern crate tracing;
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1 change: 0 additions & 1 deletion compiler/rustc_incremental/src/lib.rs
Original file line number Diff line number Diff line change
Expand Up @@ -5,7 +5,6 @@
#![doc(rust_logo)]
#![feature(rustdoc_internals)]
#![allow(internal_features)]
#![recursion_limit = "256"]
#![deny(rustc::untranslatable_diagnostic)]
#![deny(rustc::diagnostic_outside_of_impl)]

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11 changes: 2 additions & 9 deletions compiler/rustc_index/src/lib.rs
Original file line number Diff line number Diff line change
Expand Up @@ -2,16 +2,9 @@
#![deny(rustc::diagnostic_outside_of_impl)]
#![cfg_attr(
feature = "nightly",
feature(
allow_internal_unstable,
extend_one,
min_specialization,
new_uninit,
step_trait,
stmt_expr_attributes,
test
)
feature(extend_one, min_specialization, new_uninit, step_trait, test)
)]
#![cfg_attr(all(feature = "nightly", test), feature(stmt_expr_attributes))]
#![cfg_attr(feature = "nightly", allow(internal_features))]

pub mod bit_set;
Expand Down
2 changes: 0 additions & 2 deletions compiler/rustc_infer/src/lib.rs
Original file line number Diff line number Diff line change
Expand Up @@ -18,12 +18,10 @@
#![allow(internal_features)]
#![feature(associated_type_bounds)]
#![feature(box_patterns)]
#![feature(control_flow_enum)]
#![feature(extend_one)]
#![feature(let_chains)]
#![feature(if_let_guard)]
#![feature(min_specialization)]
#![feature(never_type)]
#![feature(try_blocks)]
#![recursion_limit = "512"] // For rustdoc

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3 changes: 0 additions & 3 deletions compiler/rustc_interface/src/lib.rs
Original file line number Diff line number Diff line change
@@ -1,12 +1,9 @@
#![feature(box_patterns)]
#![feature(decl_macro)]
#![feature(error_iter)]
#![feature(internal_output_capture)]
#![feature(lazy_cell)]
#![feature(let_chains)]
#![feature(thread_spawn_unchecked)]
#![feature(try_blocks)]
#![recursion_limit = "256"]
#![deny(rustc::untranslatable_diagnostic)]
#![deny(rustc::diagnostic_outside_of_impl)]

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3 changes: 0 additions & 3 deletions compiler/rustc_lint/src/lib.rs
Original file line number Diff line number Diff line change
Expand Up @@ -32,14 +32,11 @@
#![feature(box_patterns)]
#![feature(control_flow_enum)]
#![feature(if_let_guard)]
#![feature(iter_intersperse)]
#![feature(iter_order_by)]
#![feature(let_chains)]
#![cfg_attr(not(bootstrap), feature(trait_upcasting))]
#![feature(min_specialization)]
#![feature(never_type)]
#![feature(rustc_attrs)]
#![recursion_limit = "256"]
#![deny(rustc::untranslatable_diagnostic)]
#![deny(rustc::diagnostic_outside_of_impl)]
#![allow(internal_features)]
Expand Down
1 change: 0 additions & 1 deletion compiler/rustc_macros/src/lib.rs
Original file line number Diff line number Diff line change
Expand Up @@ -9,7 +9,6 @@
#![deny(rustc::untranslatable_diagnostic)]
#![deny(rustc::diagnostic_outside_of_impl)]
#![allow(internal_features)]
#![recursion_limit = "128"]

use synstructure::decl_derive;

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2 changes: 0 additions & 2 deletions compiler/rustc_metadata/src/lib.rs
Original file line number Diff line number Diff line change
Expand Up @@ -11,11 +11,9 @@
#![feature(proc_macro_internals)]
#![feature(macro_metavar_expr)]
#![feature(min_specialization)]
#![feature(slice_as_chunks)]
#![feature(trusted_len)]
#![feature(try_blocks)]
#![feature(never_type)]
#![recursion_limit = "256"]
#![allow(rustc::potential_query_instability)]
#![deny(rustc::untranslatable_diagnostic)]
#![deny(rustc::diagnostic_outside_of_impl)]
Expand Down
6 changes: 0 additions & 6 deletions compiler/rustc_middle/src/lib.rs
Original file line number Diff line number Diff line change
Expand Up @@ -33,7 +33,6 @@
#![feature(discriminant_kind)]
#![feature(exhaustive_patterns)]
#![feature(coroutines)]
#![feature(get_mut_unchecked)]
#![feature(if_let_guard)]
#![feature(inline_const)]
#![feature(iter_from_coroutine)]
Expand All @@ -50,19 +49,14 @@
#![feature(rustc_attrs)]
#![feature(control_flow_enum)]
#![cfg_attr(not(bootstrap), feature(trait_upcasting))]
#![feature(trusted_step)]
#![feature(try_blocks)]
#![feature(try_reserve_kind)]
#![feature(nonzero_ops)]
#![feature(decl_macro)]
#![feature(extract_if)]
#![feature(intra_doc_pointers)]
#![feature(yeet_expr)]
#![feature(const_option)]
#![feature(trait_alias)]
#![feature(ptr_alignment_type)]
#![feature(macro_metavar_expr)]
#![recursion_limit = "512"]
#![allow(rustc::potential_query_instability)]
#![allow(internal_features)]

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1 change: 0 additions & 1 deletion compiler/rustc_mir_build/src/lib.rs
Original file line number Diff line number Diff line change
Expand Up @@ -8,7 +8,6 @@
#![feature(let_chains)]
#![feature(min_specialization)]
#![feature(try_blocks)]
#![recursion_limit = "256"]

#[macro_use]
extern crate tracing;
Expand Down
2 changes: 1 addition & 1 deletion compiler/rustc_mir_dataflow/src/framework/cursor.rs
Original file line number Diff line number Diff line change
Expand Up @@ -185,8 +185,8 @@ where
debug_assert_eq!(target.block, self.pos.block);

let block_data = &self.body[target.block];
#[rustfmt::skip]
let next_effect = if A::Direction::IS_FORWARD {
#[rustfmt::skip]
self.pos.curr_effect_index.map_or_else(
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|| Effect::Before.at_index(0),
EffectIndex::next_in_forward_order,
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2 changes: 0 additions & 2 deletions compiler/rustc_mir_dataflow/src/lib.rs
Original file line number Diff line number Diff line change
Expand Up @@ -3,9 +3,7 @@
#![feature(exact_size_is_empty)]
#![feature(let_chains)]
#![feature(min_specialization)]
#![feature(stmt_expr_attributes)]
#![feature(try_blocks)]
#![recursion_limit = "256"]
#![deny(rustc::untranslatable_diagnostic)]
#![deny(rustc::diagnostic_outside_of_impl)]

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2 changes: 0 additions & 2 deletions compiler/rustc_mir_transform/src/lib.rs
Original file line number Diff line number Diff line change
Expand Up @@ -14,11 +14,9 @@
#![feature(never_type)]
#![feature(option_get_or_insert_default)]
#![feature(round_char_boundary)]
#![feature(trusted_step)]
#![feature(try_blocks)]
#![feature(yeet_expr)]
#![feature(if_let_guard)]
#![recursion_limit = "256"]

#[macro_use]
extern crate tracing;
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1 change: 0 additions & 1 deletion compiler/rustc_monomorphize/src/lib.rs
Original file line number Diff line number Diff line change
@@ -1,6 +1,5 @@
#![feature(array_windows)]
#![feature(is_sorted)]
#![recursion_limit = "256"]
#![allow(rustc::potential_query_instability)]
#![deny(rustc::untranslatable_diagnostic)]
#![deny(rustc::diagnostic_outside_of_impl)]
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3 changes: 0 additions & 3 deletions compiler/rustc_parse/src/lib.rs
Original file line number Diff line number Diff line change
Expand Up @@ -5,9 +5,6 @@
#![feature(if_let_guard)]
#![feature(iter_intersperse)]
#![feature(let_chains)]
#![feature(never_type)]
#![feature(rustc_attrs)]
#![recursion_limit = "256"]
#![allow(internal_features)]

#[macro_use]
Expand Down
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