From 9bc69925cb4a1391a9a41411c56ae059877bf8fb Mon Sep 17 00:00:00 2001 From: KaDiWa Date: Tue, 9 Aug 2022 02:14:43 +0200 Subject: [PATCH] compiler: remove unnecessary imports and qualified paths --- compiler/rustc_abi/src/lib.rs | 1 - compiler/rustc_apfloat/src/ieee.rs | 1 - compiler/rustc_arena/src/lib.rs | 2 +- compiler/rustc_ast/src/ast.rs | 1 - compiler/rustc_ast/src/ptr.rs | 1 - compiler/rustc_ast/src/tokenstream.rs | 2 +- compiler/rustc_ast_lowering/src/lib.rs | 4 ++-- compiler/rustc_builtin_macros/src/concat.rs | 2 -- compiler/rustc_codegen_ssa/src/base.rs | 1 - compiler/rustc_const_eval/src/const_eval/eval_queries.rs | 1 - compiler/rustc_const_eval/src/interpret/cast.rs | 1 - compiler/rustc_const_eval/src/interpret/intrinsics.rs | 2 -- .../src/interpret/intrinsics/caller_location.rs | 2 -- compiler/rustc_const_eval/src/interpret/operator.rs | 2 -- compiler/rustc_const_eval/src/interpret/util.rs | 1 - compiler/rustc_const_eval/src/interpret/validity.rs | 1 - compiler/rustc_const_eval/src/util/aggregate.rs | 1 - compiler/rustc_data_structures/src/fingerprint.rs | 1 - compiler/rustc_data_structures/src/graph/scc/mod.rs | 1 - compiler/rustc_data_structures/src/graph/vec_graph/mod.rs | 2 -- compiler/rustc_data_structures/src/owning_ref/mod.rs | 5 +---- compiler/rustc_data_structures/src/owning_ref/tests.rs | 4 ++-- compiler/rustc_data_structures/src/profiling.rs | 1 - compiler/rustc_data_structures/src/sorted_map.rs | 1 - compiler/rustc_data_structures/src/sorted_map/index_map.rs | 1 - compiler/rustc_data_structures/src/sso/either_iter.rs | 2 -- compiler/rustc_data_structures/src/sso/map.rs | 1 - compiler/rustc_data_structures/src/sso/set.rs | 1 - compiler/rustc_data_structures/src/sync.rs | 2 +- compiler/rustc_data_structures/src/tagged_ptr/drop.rs | 2 +- compiler/rustc_data_structures/src/vec_map.rs | 1 - compiler/rustc_driver/src/lib.rs | 1 - compiler/rustc_error_codes/src/error_codes/E0492.md | 1 - compiler/rustc_errors/src/diagnostic_impls.rs | 2 +- compiler/rustc_expand/src/base.rs | 1 - compiler/rustc_hir/src/pat_util.rs | 2 +- compiler/rustc_hir_analysis/src/check/wfcheck.rs | 1 - compiler/rustc_incremental/src/persist/dirty_clean.rs | 2 -- compiler/rustc_incremental/src/persist/fs.rs | 7 +++---- compiler/rustc_index/src/vec.rs | 1 - compiler/rustc_interface/src/tests.rs | 1 - compiler/rustc_lexer/src/lib.rs | 1 - compiler/rustc_lint/src/types.rs | 3 +-- compiler/rustc_metadata/src/rmeta/table.rs | 1 - compiler/rustc_middle/src/mir/coverage.rs | 1 - compiler/rustc_middle/src/mir/interpret/mod.rs | 1 - compiler/rustc_middle/src/mir/interpret/pointer.rs | 1 - compiler/rustc_middle/src/mir/interpret/value.rs | 1 - compiler/rustc_middle/src/mir/mod.rs | 1 - compiler/rustc_middle/src/traits/query.rs | 1 - compiler/rustc_middle/src/ty/consts/int.rs | 1 - compiler/rustc_middle/src/ty/consts/kind.rs | 2 -- compiler/rustc_middle/src/ty/print/pretty.rs | 1 - compiler/rustc_middle/src/ty/vtable.rs | 1 - compiler/rustc_mir_build/src/build/matches/mod.rs | 1 - compiler/rustc_mir_build/src/build/matches/util.rs | 1 - .../rustc_mir_build/src/thir/pattern/deconstruct_pat.rs | 2 +- compiler/rustc_mir_dataflow/src/framework/lattice.rs | 2 +- compiler/rustc_mir_transform/src/simplify.rs | 1 - compiler/rustc_monomorphize/src/polymorphize.rs | 1 - compiler/rustc_parse/src/parser/attr.rs | 1 - compiler/rustc_parse/src/parser/attr_wrapper.rs | 1 - compiler/rustc_parse/src/parser/item.rs | 1 - compiler/rustc_query_system/src/dep_graph/graph.rs | 2 +- compiler/rustc_query_system/src/dep_graph/serialized.rs | 1 - compiler/rustc_query_system/src/query/caches.rs | 1 - compiler/rustc_query_system/src/query/job.rs | 6 +++--- compiler/rustc_save_analysis/src/lib.rs | 1 - compiler/rustc_serialize/src/opaque.rs | 1 - compiler/rustc_session/src/config.rs | 2 +- compiler/rustc_session/src/filesearch.rs | 1 - compiler/rustc_span/src/source_map.rs | 3 +-- compiler/rustc_span/src/symbol.rs | 2 -- compiler/rustc_target/src/lib.rs | 1 - compiler/rustc_target/src/spec/mod.rs | 2 -- compiler/rustc_type_ir/src/sty.rs | 2 +- 76 files changed, 24 insertions(+), 98 deletions(-) diff --git a/compiler/rustc_abi/src/lib.rs b/compiler/rustc_abi/src/lib.rs index e14c9ea9a5d1a..4ca59144b2990 100644 --- a/compiler/rustc_abi/src/lib.rs +++ b/compiler/rustc_abi/src/lib.rs @@ -1,6 +1,5 @@ #![cfg_attr(feature = "nightly", feature(step_trait, rustc_attrs, min_specialization))] -use std::convert::{TryFrom, TryInto}; use std::fmt; #[cfg(feature = "nightly")] use std::iter::Step; diff --git a/compiler/rustc_apfloat/src/ieee.rs b/compiler/rustc_apfloat/src/ieee.rs index 3db8adb2a2444..2286712f02565 100644 --- a/compiler/rustc_apfloat/src/ieee.rs +++ b/compiler/rustc_apfloat/src/ieee.rs @@ -2,7 +2,6 @@ use crate::{Category, ExpInt, IEK_INF, IEK_NAN, IEK_ZERO}; use crate::{Float, FloatConvert, ParseError, Round, Status, StatusAnd}; use core::cmp::{self, Ordering}; -use core::convert::TryFrom; use core::fmt::{self, Write}; use core::marker::PhantomData; use core::mem; diff --git a/compiler/rustc_arena/src/lib.rs b/compiler/rustc_arena/src/lib.rs index 46dbbd83d1905..4fae5ef845f7d 100644 --- a/compiler/rustc_arena/src/lib.rs +++ b/compiler/rustc_arena/src/lib.rs @@ -28,7 +28,7 @@ use smallvec::SmallVec; use std::alloc::Layout; use std::cell::{Cell, RefCell}; use std::cmp; -use std::marker::{PhantomData, Send}; +use std::marker::PhantomData; use std::mem::{self, MaybeUninit}; use std::ptr::{self, NonNull}; use std::slice; diff --git a/compiler/rustc_ast/src/ast.rs b/compiler/rustc_ast/src/ast.rs index 4d80f904ac461..74a0c13b23f74 100644 --- a/compiler/rustc_ast/src/ast.rs +++ b/compiler/rustc_ast/src/ast.rs @@ -33,7 +33,6 @@ use rustc_serialize::{Decodable, Decoder, Encodable, Encoder}; use rustc_span::source_map::{respan, Spanned}; use rustc_span::symbol::{kw, sym, Ident, Symbol}; use rustc_span::{Span, DUMMY_SP}; -use std::convert::TryFrom; use std::fmt; use std::mem; use thin_vec::{thin_vec, ThinVec}; diff --git a/compiler/rustc_ast/src/ptr.rs b/compiler/rustc_ast/src/ptr.rs index 30481eddf9160..4b2850336a03d 100644 --- a/compiler/rustc_ast/src/ptr.rs +++ b/compiler/rustc_ast/src/ptr.rs @@ -22,7 +22,6 @@ //! Moreover, a switch to, e.g., `P<'a, T>` would be easy and mostly automated. use std::fmt::{self, Debug, Display}; -use std::iter::FromIterator; use std::ops::{Deref, DerefMut}; use std::{slice, vec}; diff --git a/compiler/rustc_ast/src/tokenstream.rs b/compiler/rustc_ast/src/tokenstream.rs index 482c302950f01..29a5eb4b7c509 100644 --- a/compiler/rustc_ast/src/tokenstream.rs +++ b/compiler/rustc_ast/src/tokenstream.rs @@ -362,7 +362,7 @@ impl TokenStream { } } -impl iter::FromIterator for TokenStream { +impl FromIterator for TokenStream { fn from_iter>(iter: I) -> Self { TokenStream::new(iter.into_iter().collect::>()) } diff --git a/compiler/rustc_ast_lowering/src/lib.rs b/compiler/rustc_ast_lowering/src/lib.rs index 4fa18907fcd46..5d7397977e984 100644 --- a/compiler/rustc_ast_lowering/src/lib.rs +++ b/compiler/rustc_ast_lowering/src/lib.rs @@ -456,8 +456,8 @@ pub fn lower_to_hir<'hir>(tcx: TyCtxt<'hir>, (): ()) -> hir::Crate<'hir> { } // Drop AST to free memory - std::mem::drop(ast_index); - sess.time("drop_ast", || std::mem::drop(krate)); + drop(ast_index); + sess.time("drop_ast", || drop(krate)); // Discard hygiene data, which isn't required after lowering to HIR. if !sess.opts.unstable_opts.keep_hygiene_data { diff --git a/compiler/rustc_builtin_macros/src/concat.rs b/compiler/rustc_builtin_macros/src/concat.rs index e2d71825d556f..c9dc6b847cdb5 100644 --- a/compiler/rustc_builtin_macros/src/concat.rs +++ b/compiler/rustc_builtin_macros/src/concat.rs @@ -4,8 +4,6 @@ use rustc_expand::base::{self, DummyResult}; use rustc_session::errors::report_lit_error; use rustc_span::symbol::Symbol; -use std::string::String; - pub fn expand_concat( cx: &mut base::ExtCtxt<'_>, sp: rustc_span::Span, diff --git a/compiler/rustc_codegen_ssa/src/base.rs b/compiler/rustc_codegen_ssa/src/base.rs index 4f396e970ad70..664697e0edaa4 100644 --- a/compiler/rustc_codegen_ssa/src/base.rs +++ b/compiler/rustc_codegen_ssa/src/base.rs @@ -41,7 +41,6 @@ use rustc_span::{DebuggerVisualizerFile, DebuggerVisualizerType}; use rustc_target::abi::{Align, Size, VariantIdx}; use std::collections::BTreeSet; -use std::convert::TryFrom; use std::time::{Duration, Instant}; use itertools::Itertools; diff --git a/compiler/rustc_const_eval/src/const_eval/eval_queries.rs b/compiler/rustc_const_eval/src/const_eval/eval_queries.rs index c27790d8887a3..319f2b2c25ebf 100644 --- a/compiler/rustc_const_eval/src/const_eval/eval_queries.rs +++ b/compiler/rustc_const_eval/src/const_eval/eval_queries.rs @@ -1,5 +1,4 @@ use std::borrow::Cow; -use std::convert::TryInto; use either::{Left, Right}; diff --git a/compiler/rustc_const_eval/src/interpret/cast.rs b/compiler/rustc_const_eval/src/interpret/cast.rs index 269ae15d49745..b1fdeb01b100a 100644 --- a/compiler/rustc_const_eval/src/interpret/cast.rs +++ b/compiler/rustc_const_eval/src/interpret/cast.rs @@ -1,5 +1,4 @@ use std::assert_matches::assert_matches; -use std::convert::TryFrom; use rustc_apfloat::ieee::{Double, Single}; use rustc_apfloat::{Float, FloatConvert}; diff --git a/compiler/rustc_const_eval/src/interpret/intrinsics.rs b/compiler/rustc_const_eval/src/interpret/intrinsics.rs index 7940efcd2b11f..b9be7fa48000b 100644 --- a/compiler/rustc_const_eval/src/interpret/intrinsics.rs +++ b/compiler/rustc_const_eval/src/interpret/intrinsics.rs @@ -2,8 +2,6 @@ //! looking at their MIR. Intrinsics/functions supported here are shared by CTFE //! and miri. -use std::convert::TryFrom; - use rustc_hir::def_id::DefId; use rustc_middle::mir::{ self, diff --git a/compiler/rustc_const_eval/src/interpret/intrinsics/caller_location.rs b/compiler/rustc_const_eval/src/interpret/intrinsics/caller_location.rs index 7d94a22c43d71..77c7b4bacb8c8 100644 --- a/compiler/rustc_const_eval/src/interpret/intrinsics/caller_location.rs +++ b/compiler/rustc_const_eval/src/interpret/intrinsics/caller_location.rs @@ -1,5 +1,3 @@ -use std::convert::TryFrom; - use rustc_ast::Mutability; use rustc_hir::lang_items::LangItem; use rustc_middle::mir::TerminatorKind; diff --git a/compiler/rustc_const_eval/src/interpret/operator.rs b/compiler/rustc_const_eval/src/interpret/operator.rs index 1f1d0665139d0..949f95c5fa81c 100644 --- a/compiler/rustc_const_eval/src/interpret/operator.rs +++ b/compiler/rustc_const_eval/src/interpret/operator.rs @@ -1,5 +1,3 @@ -use std::convert::TryFrom; - use rustc_apfloat::Float; use rustc_middle::mir; use rustc_middle::mir::interpret::{InterpResult, Scalar}; diff --git a/compiler/rustc_const_eval/src/interpret/util.rs b/compiler/rustc_const_eval/src/interpret/util.rs index 2bc521d5bbe0b..e4f716c31945c 100644 --- a/compiler/rustc_const_eval/src/interpret/util.rs +++ b/compiler/rustc_const_eval/src/interpret/util.rs @@ -1,6 +1,5 @@ use rustc_middle::mir::interpret::InterpResult; use rustc_middle::ty::{self, Ty, TyCtxt, TypeSuperVisitable, TypeVisitable, TypeVisitor}; -use std::convert::TryInto; use std::ops::ControlFlow; /// Checks whether a type contains generic parameters which require substitution. diff --git a/compiler/rustc_const_eval/src/interpret/validity.rs b/compiler/rustc_const_eval/src/interpret/validity.rs index 0e85c7d11bce5..fc65306e440a9 100644 --- a/compiler/rustc_const_eval/src/interpret/validity.rs +++ b/compiler/rustc_const_eval/src/interpret/validity.rs @@ -4,7 +4,6 @@ //! That's useful because it means other passes (e.g. promotion) can rely on `const`s //! to be const-safe. -use std::convert::TryFrom; use std::fmt::{Display, Write}; use std::num::NonZeroUsize; diff --git a/compiler/rustc_const_eval/src/util/aggregate.rs b/compiler/rustc_const_eval/src/util/aggregate.rs index c43de3368c62f..10783c5ed1d1c 100644 --- a/compiler/rustc_const_eval/src/util/aggregate.rs +++ b/compiler/rustc_const_eval/src/util/aggregate.rs @@ -3,7 +3,6 @@ use rustc_middle::mir::*; use rustc_middle::ty::{Ty, TyCtxt}; use rustc_target::abi::VariantIdx; -use std::convert::TryFrom; use std::iter::TrustedLen; /// Expand `lhs = Rvalue::Aggregate(kind, operands)` into assignments to the fields. diff --git a/compiler/rustc_data_structures/src/fingerprint.rs b/compiler/rustc_data_structures/src/fingerprint.rs index d98f4e43fe884..b6e866f15efe3 100644 --- a/compiler/rustc_data_structures/src/fingerprint.rs +++ b/compiler/rustc_data_structures/src/fingerprint.rs @@ -1,6 +1,5 @@ use crate::stable_hasher; use rustc_serialize::{Decodable, Decoder, Encodable, Encoder}; -use std::convert::TryInto; use std::hash::{Hash, Hasher}; #[cfg(test)] diff --git a/compiler/rustc_data_structures/src/graph/scc/mod.rs b/compiler/rustc_data_structures/src/graph/scc/mod.rs index 7099ca7eb88c2..b31092eca9837 100644 --- a/compiler/rustc_data_structures/src/graph/scc/mod.rs +++ b/compiler/rustc_data_structures/src/graph/scc/mod.rs @@ -9,7 +9,6 @@ use crate::fx::FxHashSet; use crate::graph::vec_graph::VecGraph; use crate::graph::{DirectedGraph, GraphSuccessors, WithNumEdges, WithNumNodes, WithSuccessors}; use rustc_index::vec::{Idx, IndexVec}; -use std::cmp::Ord; use std::ops::Range; #[cfg(test)] diff --git a/compiler/rustc_data_structures/src/graph/vec_graph/mod.rs b/compiler/rustc_data_structures/src/graph/vec_graph/mod.rs index e8efbd09a2c38..94232bb7626ec 100644 --- a/compiler/rustc_data_structures/src/graph/vec_graph/mod.rs +++ b/compiler/rustc_data_structures/src/graph/vec_graph/mod.rs @@ -1,5 +1,3 @@ -use std::cmp::Ord; - use crate::graph::{DirectedGraph, GraphSuccessors, WithNumEdges, WithNumNodes, WithSuccessors}; use rustc_index::vec::{Idx, IndexVec}; diff --git a/compiler/rustc_data_structures/src/owning_ref/mod.rs b/compiler/rustc_data_structures/src/owning_ref/mod.rs index 980a540ccba7a..d1d92b905b82e 100644 --- a/compiler/rustc_data_structures/src/owning_ref/mod.rs +++ b/compiler/rustc_data_structures/src/owning_ref/mod.rs @@ -867,11 +867,9 @@ where ///////////////////////////////////////////////////////////////////////////// use std::borrow::Borrow; -use std::cmp::{Eq, Ord, Ordering, PartialEq, PartialOrd}; -use std::convert::From; +use std::cmp::Ordering; use std::fmt::{self, Debug}; use std::hash::{Hash, Hasher}; -use std::marker::{Send, Sync}; impl Deref for OwningRef { type Target = T; @@ -1096,7 +1094,6 @@ where // std types integration and convenience type defs ///////////////////////////////////////////////////////////////////////////// -use std::boxed::Box; use std::cell::{Ref, RefCell, RefMut}; use std::rc::Rc; use std::sync::Arc; diff --git a/compiler/rustc_data_structures/src/owning_ref/tests.rs b/compiler/rustc_data_structures/src/owning_ref/tests.rs index 320c03d5139f4..a9b187c4ce0a7 100644 --- a/compiler/rustc_data_structures/src/owning_ref/tests.rs +++ b/compiler/rustc_data_structures/src/owning_ref/tests.rs @@ -3,7 +3,7 @@ mod owning_ref { use super::super::OwningRef; use super::super::{BoxRef, Erased, ErasedBoxRef, RcRef}; - use std::cmp::{Ord, Ordering, PartialEq, PartialOrd}; + use std::cmp::Ordering; use std::collections::hash_map::DefaultHasher; use std::collections::HashMap; use std::hash::{Hash, Hasher}; @@ -368,7 +368,7 @@ mod owning_handle { mod owning_ref_mut { use super::super::BoxRef; use super::super::{BoxRefMut, Erased, ErasedBoxRefMut, OwningRefMut}; - use std::cmp::{Ord, Ordering, PartialEq, PartialOrd}; + use std::cmp::Ordering; use std::collections::hash_map::DefaultHasher; use std::collections::HashMap; use std::hash::{Hash, Hasher}; diff --git a/compiler/rustc_data_structures/src/profiling.rs b/compiler/rustc_data_structures/src/profiling.rs index aa7a01eed15c9..1d4014f05acdc 100644 --- a/compiler/rustc_data_structures/src/profiling.rs +++ b/compiler/rustc_data_structures/src/profiling.rs @@ -86,7 +86,6 @@ use crate::fx::FxHashMap; use std::borrow::Borrow; use std::collections::hash_map::Entry; -use std::convert::Into; use std::error::Error; use std::fs; use std::path::Path; diff --git a/compiler/rustc_data_structures/src/sorted_map.rs b/compiler/rustc_data_structures/src/sorted_map.rs index d13313dfd0ebf..03ff5e5b3751f 100644 --- a/compiler/rustc_data_structures/src/sorted_map.rs +++ b/compiler/rustc_data_structures/src/sorted_map.rs @@ -1,7 +1,6 @@ use crate::stable_hasher::{HashStable, StableHasher, StableOrd}; use std::borrow::Borrow; use std::cmp::Ordering; -use std::iter::FromIterator; use std::mem; use std::ops::{Bound, Index, IndexMut, RangeBounds}; diff --git a/compiler/rustc_data_structures/src/sorted_map/index_map.rs b/compiler/rustc_data_structures/src/sorted_map/index_map.rs index c2f0ae328962b..7af5c14942adf 100644 --- a/compiler/rustc_data_structures/src/sorted_map/index_map.rs +++ b/compiler/rustc_data_structures/src/sorted_map/index_map.rs @@ -1,7 +1,6 @@ //! A variant of `SortedMap` that preserves insertion order. use std::hash::{Hash, Hasher}; -use std::iter::FromIterator; use crate::stable_hasher::{HashStable, StableHasher}; use rustc_index::vec::{Idx, IndexVec}; diff --git a/compiler/rustc_data_structures/src/sso/either_iter.rs b/compiler/rustc_data_structures/src/sso/either_iter.rs index 131eeef4582de..bca6c0955b905 100644 --- a/compiler/rustc_data_structures/src/sso/either_iter.rs +++ b/compiler/rustc_data_structures/src/sso/either_iter.rs @@ -1,7 +1,5 @@ use std::fmt; -use std::iter::ExactSizeIterator; use std::iter::FusedIterator; -use std::iter::Iterator; /// Iterator which may contain instance of /// one of two specific implementations. diff --git a/compiler/rustc_data_structures/src/sso/map.rs b/compiler/rustc_data_structures/src/sso/map.rs index ec6a62016a87c..7cdac58197714 100644 --- a/compiler/rustc_data_structures/src/sso/map.rs +++ b/compiler/rustc_data_structures/src/sso/map.rs @@ -3,7 +3,6 @@ use crate::fx::FxHashMap; use arrayvec::ArrayVec; use std::fmt; use std::hash::Hash; -use std::iter::FromIterator; use std::ops::Index; // For pointer-sized arguments arrays diff --git a/compiler/rustc_data_structures/src/sso/set.rs b/compiler/rustc_data_structures/src/sso/set.rs index 406f0270dcc1b..a4b40138933de 100644 --- a/compiler/rustc_data_structures/src/sso/set.rs +++ b/compiler/rustc_data_structures/src/sso/set.rs @@ -1,6 +1,5 @@ use std::fmt; use std::hash::Hash; -use std::iter::FromIterator; use super::map::SsoHashMap; diff --git a/compiler/rustc_data_structures/src/sync.rs b/compiler/rustc_data_structures/src/sync.rs index e4f47b22ac358..ed5341c40ef08 100644 --- a/compiler/rustc_data_structures/src/sync.rs +++ b/compiler/rustc_data_structures/src/sync.rs @@ -138,7 +138,7 @@ cfg_if! { } } - pub use std::iter::Iterator as ParallelIterator; + pub use Iterator as ParallelIterator; pub fn par_iter(t: T) -> T::IntoIter { t.into_iter() diff --git a/compiler/rustc_data_structures/src/tagged_ptr/drop.rs b/compiler/rustc_data_structures/src/tagged_ptr/drop.rs index d44ccd368b3cb..b0315c93d934d 100644 --- a/compiler/rustc_data_structures/src/tagged_ptr/drop.rs +++ b/compiler/rustc_data_structures/src/tagged_ptr/drop.rs @@ -76,7 +76,7 @@ where fn drop(&mut self) { // No need to drop the tag, as it's Copy unsafe { - std::mem::drop(P::from_usize(self.raw.pointer_raw())); + drop(P::from_usize(self.raw.pointer_raw())); } } } diff --git a/compiler/rustc_data_structures/src/vec_map.rs b/compiler/rustc_data_structures/src/vec_map.rs index 86be0bd8775d7..2417df66bb9d8 100644 --- a/compiler/rustc_data_structures/src/vec_map.rs +++ b/compiler/rustc_data_structures/src/vec_map.rs @@ -1,6 +1,5 @@ use std::borrow::Borrow; use std::fmt::Debug; -use std::iter::FromIterator; use std::slice::Iter; use std::vec::IntoIter; diff --git a/compiler/rustc_driver/src/lib.rs b/compiler/rustc_driver/src/lib.rs index f06ca5a0733a5..711eed2b27231 100644 --- a/compiler/rustc_driver/src/lib.rs +++ b/compiler/rustc_driver/src/lib.rs @@ -45,7 +45,6 @@ use rustc_target::json::ToJson; use std::borrow::Cow; use std::cmp::max; -use std::default::Default; use std::env; use std::ffi::OsString; use std::fs; diff --git a/compiler/rustc_error_codes/src/error_codes/E0492.md b/compiler/rustc_error_codes/src/error_codes/E0492.md index 79e7c069a91c4..7c0719dc217d0 100644 --- a/compiler/rustc_error_codes/src/error_codes/E0492.md +++ b/compiler/rustc_error_codes/src/error_codes/E0492.md @@ -55,7 +55,6 @@ wrapper: ``` use std::cell::Cell; -use std::marker::Sync; struct NotThreadSafe { value: Cell, diff --git a/compiler/rustc_errors/src/diagnostic_impls.rs b/compiler/rustc_errors/src/diagnostic_impls.rs index 7155db32e53b7..88b4fffd46f61 100644 --- a/compiler/rustc_errors/src/diagnostic_impls.rs +++ b/compiler/rustc_errors/src/diagnostic_impls.rs @@ -59,7 +59,7 @@ into_diagnostic_arg_using_display!( i128, u128, std::io::Error, - std::boxed::Box, + Box, std::num::NonZeroU32, hir::Target, Edition, diff --git a/compiler/rustc_expand/src/base.rs b/compiler/rustc_expand/src/base.rs index 9d6a4f9a1fd7d..321c43a1aba8d 100644 --- a/compiler/rustc_expand/src/base.rs +++ b/compiler/rustc_expand/src/base.rs @@ -26,7 +26,6 @@ use rustc_span::symbol::{kw, sym, Ident, Symbol}; use rustc_span::{BytePos, FileName, RealFileName, Span, DUMMY_SP}; use smallvec::{smallvec, SmallVec}; -use std::default::Default; use std::iter; use std::path::PathBuf; use std::rc::Rc; diff --git a/compiler/rustc_hir/src/pat_util.rs b/compiler/rustc_hir/src/pat_util.rs index 6e2fbf96cbfb3..e870aa543d0b5 100644 --- a/compiler/rustc_hir/src/pat_util.rs +++ b/compiler/rustc_hir/src/pat_util.rs @@ -6,7 +6,7 @@ use rustc_span::hygiene::DesugaringKind; use rustc_span::symbol::Ident; use rustc_span::Span; -use std::iter::{Enumerate, ExactSizeIterator}; +use std::iter::Enumerate; pub struct EnumerateAndAdjust { enumerate: Enumerate, diff --git a/compiler/rustc_hir_analysis/src/check/wfcheck.rs b/compiler/rustc_hir_analysis/src/check/wfcheck.rs index b065ace6bf5e1..69eb96fe8e925 100644 --- a/compiler/rustc_hir_analysis/src/check/wfcheck.rs +++ b/compiler/rustc_hir_analysis/src/check/wfcheck.rs @@ -31,7 +31,6 @@ use rustc_trait_selection::traits::{ }; use std::cell::LazyCell; -use std::convert::TryInto; use std::iter; use std::ops::{ControlFlow, Deref}; diff --git a/compiler/rustc_incremental/src/persist/dirty_clean.rs b/compiler/rustc_incremental/src/persist/dirty_clean.rs index a8acaf6597aab..d1d328128bc15 100644 --- a/compiler/rustc_incremental/src/persist/dirty_clean.rs +++ b/compiler/rustc_incremental/src/persist/dirty_clean.rs @@ -30,8 +30,6 @@ use rustc_middle::hir::nested_filter; use rustc_middle::ty::TyCtxt; use rustc_span::symbol::{sym, Symbol}; use rustc_span::Span; -use std::iter::FromIterator; -use std::vec::Vec; const LOADED_FROM_DISK: Symbol = sym::loaded_from_disk; const EXCEPT: Symbol = sym::except; diff --git a/compiler/rustc_incremental/src/persist/fs.rs b/compiler/rustc_incremental/src/persist/fs.rs index 97ebed0585579..1fd2b9b0d7b7b 100644 --- a/compiler/rustc_incremental/src/persist/fs.rs +++ b/compiler/rustc_incremental/src/persist/fs.rs @@ -113,7 +113,6 @@ use rustc_span::Symbol; use std::fs as std_fs; use std::io::{self, ErrorKind}; -use std::mem; use std::path::{Path, PathBuf}; use std::time::{Duration, SystemTime, UNIX_EPOCH}; @@ -305,7 +304,7 @@ pub fn prepare_session_directory( } delete_session_dir_lock_file(sess, &lock_file_path); - mem::drop(directory_lock); + drop(directory_lock); } } } @@ -864,7 +863,7 @@ pub fn garbage_collect_session_directories(sess: &Session) -> io::Result<()> { // Let's make it explicit that the file lock is released at this point, // or rather, that we held on to it until here - mem::drop(lock); + drop(lock); } Err(_) => { debug!( @@ -898,7 +897,7 @@ pub fn garbage_collect_session_directories(sess: &Session) -> io::Result<()> { // Let's make it explicit that the file lock is released at this point, // or rather, that we held on to it until here - mem::drop(lock); + drop(lock); } Ok(()) diff --git a/compiler/rustc_index/src/vec.rs b/compiler/rustc_index/src/vec.rs index 39aa27a23c1d2..c18a911b2fbcd 100644 --- a/compiler/rustc_index/src/vec.rs +++ b/compiler/rustc_index/src/vec.rs @@ -4,7 +4,6 @@ use rustc_serialize::{Decodable, Decoder, Encodable, Encoder}; use std::fmt; use std::fmt::Debug; use std::hash::Hash; -use std::iter::FromIterator; use std::marker::PhantomData; use std::ops::{Index, IndexMut, RangeBounds}; use std::slice; diff --git a/compiler/rustc_interface/src/tests.rs b/compiler/rustc_interface/src/tests.rs index 2b8f6557c829b..e903cb86dd204 100644 --- a/compiler/rustc_interface/src/tests.rs +++ b/compiler/rustc_interface/src/tests.rs @@ -25,7 +25,6 @@ use rustc_target::spec::{CodeModel, LinkerFlavorCli, MergeFunctions, PanicStrate use rustc_target::spec::{RelroLevel, SanitizerSet, SplitDebuginfo, StackProtector, TlsModel}; use std::collections::{BTreeMap, BTreeSet}; -use std::iter::FromIterator; use std::num::NonZeroUsize; use std::path::{Path, PathBuf}; diff --git a/compiler/rustc_lexer/src/lib.rs b/compiler/rustc_lexer/src/lib.rs index 3fbabbc6344a7..50d6d5b9bab91 100644 --- a/compiler/rustc_lexer/src/lib.rs +++ b/compiler/rustc_lexer/src/lib.rs @@ -34,7 +34,6 @@ pub use crate::cursor::Cursor; use self::LiteralKind::*; use self::TokenKind::*; use crate::cursor::EOF_CHAR; -use std::convert::TryFrom; /// Parsed token. /// It doesn't contain information about data that has been parsed, diff --git a/compiler/rustc_lint/src/types.rs b/compiler/rustc_lint/src/types.rs index 297b509d4023d..8446da6098ee9 100644 --- a/compiler/rustc_lint/src/types.rs +++ b/compiler/rustc_lint/src/types.rs @@ -16,7 +16,6 @@ use rustc_target::abi::{Abi, Size, WrappingRange}; use rustc_target::abi::{Integer, TagEncoding, Variants}; use rustc_target::spec::abi::Abi as SpecAbi; -use std::cmp; use std::iter; use std::ops::ControlFlow; @@ -531,7 +530,7 @@ impl<'tcx> LateLintPass<'tcx> for TypeLimits { _ => {} }; - fn is_valid(binop: hir::BinOp, v: T, min: T, max: T) -> bool { + fn is_valid(binop: hir::BinOp, v: T, min: T, max: T) -> bool { match binop.node { hir::BinOpKind::Lt => v > min && v <= max, hir::BinOpKind::Le => v >= min && v < max, diff --git a/compiler/rustc_metadata/src/rmeta/table.rs b/compiler/rustc_metadata/src/rmeta/table.rs index 29fe6110797e3..716655c7f144d 100644 --- a/compiler/rustc_metadata/src/rmeta/table.rs +++ b/compiler/rustc_metadata/src/rmeta/table.rs @@ -7,7 +7,6 @@ use rustc_middle::ty::ParameterizedOverTcx; use rustc_serialize::opaque::FileEncoder; use rustc_serialize::Encoder as _; use rustc_span::hygiene::MacroKind; -use std::convert::TryInto; use std::marker::PhantomData; use std::num::NonZeroUsize; diff --git a/compiler/rustc_middle/src/mir/coverage.rs b/compiler/rustc_middle/src/mir/coverage.rs index efa9464529e71..0b55757eb0382 100644 --- a/compiler/rustc_middle/src/mir/coverage.rs +++ b/compiler/rustc_middle/src/mir/coverage.rs @@ -3,7 +3,6 @@ use rustc_macros::HashStable; use rustc_span::Symbol; -use std::cmp::Ord; use std::fmt::{self, Debug, Formatter}; rustc_index::newtype_index! { diff --git a/compiler/rustc_middle/src/mir/interpret/mod.rs b/compiler/rustc_middle/src/mir/interpret/mod.rs index d79cd8b7a8a4b..8fe349d9640da 100644 --- a/compiler/rustc_middle/src/mir/interpret/mod.rs +++ b/compiler/rustc_middle/src/mir/interpret/mod.rs @@ -95,7 +95,6 @@ mod pointer; mod queries; mod value; -use std::convert::TryFrom; use std::fmt; use std::io; use std::io::{Read, Write}; diff --git a/compiler/rustc_middle/src/mir/interpret/pointer.rs b/compiler/rustc_middle/src/mir/interpret/pointer.rs index 9c270ba1ec179..b083099107620 100644 --- a/compiler/rustc_middle/src/mir/interpret/pointer.rs +++ b/compiler/rustc_middle/src/mir/interpret/pointer.rs @@ -3,7 +3,6 @@ use super::{AllocId, InterpResult}; use rustc_macros::HashStable; use rustc_target::abi::{HasDataLayout, Size}; -use std::convert::{TryFrom, TryInto}; use std::fmt; //////////////////////////////////////////////////////////////////////////////// diff --git a/compiler/rustc_middle/src/mir/interpret/value.rs b/compiler/rustc_middle/src/mir/interpret/value.rs index e6636e50e6e7a..88fb14eb35942 100644 --- a/compiler/rustc_middle/src/mir/interpret/value.rs +++ b/compiler/rustc_middle/src/mir/interpret/value.rs @@ -1,4 +1,3 @@ -use std::convert::{TryFrom, TryInto}; use std::fmt; use either::{Either, Left, Right}; diff --git a/compiler/rustc_middle/src/mir/mod.rs b/compiler/rustc_middle/src/mir/mod.rs index a513444e1e08b..db4fe6f886b25 100644 --- a/compiler/rustc_middle/src/mir/mod.rs +++ b/compiler/rustc_middle/src/mir/mod.rs @@ -36,7 +36,6 @@ use rustc_span::{Span, DUMMY_SP}; use either::Either; use std::borrow::Cow; -use std::convert::TryInto; use std::fmt::{self, Debug, Display, Formatter, Write}; use std::ops::{ControlFlow, Index, IndexMut}; use std::{iter, mem}; diff --git a/compiler/rustc_middle/src/traits/query.rs b/compiler/rustc_middle/src/traits/query.rs index fb152b63f6344..d40d7de5f315f 100644 --- a/compiler/rustc_middle/src/traits/query.rs +++ b/compiler/rustc_middle/src/traits/query.rs @@ -12,7 +12,6 @@ use crate::ty::subst::{GenericArg, SubstsRef}; use crate::ty::{self, Ty, TyCtxt}; use rustc_hir::def_id::DefId; use rustc_span::source_map::Span; -use std::iter::FromIterator; pub mod type_op { use crate::ty::fold::TypeFoldable; diff --git a/compiler/rustc_middle/src/ty/consts/int.rs b/compiler/rustc_middle/src/ty/consts/int.rs index f3186e1c30c3d..2a8a4d598882d 100644 --- a/compiler/rustc_middle/src/ty/consts/int.rs +++ b/compiler/rustc_middle/src/ty/consts/int.rs @@ -2,7 +2,6 @@ use rustc_apfloat::ieee::{Double, Single}; use rustc_apfloat::Float; use rustc_serialize::{Decodable, Decoder, Encodable, Encoder}; use rustc_target::abi::Size; -use std::convert::{TryFrom, TryInto}; use std::fmt; use std::num::NonZeroU8; diff --git a/compiler/rustc_middle/src/ty/consts/kind.rs b/compiler/rustc_middle/src/ty/consts/kind.rs index becc2b805dd1e..d9721863a58c8 100644 --- a/compiler/rustc_middle/src/ty/consts/kind.rs +++ b/compiler/rustc_middle/src/ty/consts/kind.rs @@ -1,5 +1,3 @@ -use std::convert::TryInto; - use super::Const; use crate::mir; use crate::mir::interpret::{AllocId, ConstValue, Scalar}; diff --git a/compiler/rustc_middle/src/ty/print/pretty.rs b/compiler/rustc_middle/src/ty/print/pretty.rs index 5303341ba443c..01e96fa5c7ade 100644 --- a/compiler/rustc_middle/src/ty/print/pretty.rs +++ b/compiler/rustc_middle/src/ty/print/pretty.rs @@ -23,7 +23,6 @@ use smallvec::SmallVec; use std::cell::Cell; use std::char; use std::collections::BTreeMap; -use std::convert::TryFrom; use std::fmt::{self, Write as _}; use std::iter; use std::ops::{ControlFlow, Deref, DerefMut}; diff --git a/compiler/rustc_middle/src/ty/vtable.rs b/compiler/rustc_middle/src/ty/vtable.rs index 6eae94511e4d6..802925dfb043e 100644 --- a/compiler/rustc_middle/src/ty/vtable.rs +++ b/compiler/rustc_middle/src/ty/vtable.rs @@ -1,4 +1,3 @@ -use std::convert::TryFrom; use std::fmt; use crate::mir::interpret::{alloc_range, AllocId, Allocation, Pointer, Scalar}; diff --git a/compiler/rustc_mir_build/src/build/matches/mod.rs b/compiler/rustc_mir_build/src/build/matches/mod.rs index 691cbee2c7319..ba6bc41c6675c 100644 --- a/compiler/rustc_mir_build/src/build/matches/mod.rs +++ b/compiler/rustc_mir_build/src/build/matches/mod.rs @@ -30,7 +30,6 @@ mod test; mod util; use std::borrow::Borrow; -use std::convert::TryFrom; use std::mem; impl<'a, 'tcx> Builder<'a, 'tcx> { diff --git a/compiler/rustc_mir_build/src/build/matches/util.rs b/compiler/rustc_mir_build/src/build/matches/util.rs index bd435f9ab0095..cbd494862a01f 100644 --- a/compiler/rustc_mir_build/src/build/matches/util.rs +++ b/compiler/rustc_mir_build/src/build/matches/util.rs @@ -7,7 +7,6 @@ use rustc_middle::thir::*; use rustc_middle::ty; use rustc_middle::ty::TypeVisitable; use smallvec::SmallVec; -use std::convert::TryInto; impl<'a, 'tcx> Builder<'a, 'tcx> { pub(crate) fn field_match_pairs<'pat>( diff --git a/compiler/rustc_mir_build/src/thir/pattern/deconstruct_pat.rs b/compiler/rustc_mir_build/src/thir/pattern/deconstruct_pat.rs index d60e8722cb61d..18e9c69c4870e 100644 --- a/compiler/rustc_mir_build/src/thir/pattern/deconstruct_pat.rs +++ b/compiler/rustc_mir_build/src/thir/pattern/deconstruct_pat.rs @@ -45,7 +45,7 @@ use std::cell::Cell; use std::cmp::{self, max, min, Ordering}; use std::fmt; -use std::iter::{once, IntoIterator}; +use std::iter::once; use std::ops::RangeInclusive; use smallvec::{smallvec, SmallVec}; diff --git a/compiler/rustc_mir_dataflow/src/framework/lattice.rs b/compiler/rustc_mir_dataflow/src/framework/lattice.rs index f0e75c53ea15c..8fdac7b2cf501 100644 --- a/compiler/rustc_mir_dataflow/src/framework/lattice.rs +++ b/compiler/rustc_mir_dataflow/src/framework/lattice.rs @@ -26,7 +26,7 @@ //! ## `PartialOrd` //! //! Given that they represent partially ordered sets, you may be surprised that [`JoinSemiLattice`] -//! and [`MeetSemiLattice`] do not have [`PartialOrd`][std::cmp::PartialOrd] as a supertrait. This +//! and [`MeetSemiLattice`] do not have [`PartialOrd`] as a supertrait. This //! is because most standard library types use lexicographic ordering instead of set inclusion for //! their `PartialOrd` impl. Since we do not actually need to compare lattice elements to run a //! dataflow analysis, there's no need for a newtype wrapper with a custom `PartialOrd` impl. The diff --git a/compiler/rustc_mir_transform/src/simplify.rs b/compiler/rustc_mir_transform/src/simplify.rs index 475e2ec9a1dea..8212a7b523bbc 100644 --- a/compiler/rustc_mir_transform/src/simplify.rs +++ b/compiler/rustc_mir_transform/src/simplify.rs @@ -35,7 +35,6 @@ use rustc_middle::mir::visit::{MutVisitor, MutatingUseContext, PlaceContext, Vis use rustc_middle::mir::*; use rustc_middle::ty::TyCtxt; use smallvec::SmallVec; -use std::convert::TryInto; pub struct SimplifyCfg { label: String, diff --git a/compiler/rustc_monomorphize/src/polymorphize.rs b/compiler/rustc_monomorphize/src/polymorphize.rs index 650076c2213a3..703ed09a254a9 100644 --- a/compiler/rustc_monomorphize/src/polymorphize.rs +++ b/compiler/rustc_monomorphize/src/polymorphize.rs @@ -20,7 +20,6 @@ use rustc_middle::ty::{ Const, Ty, TyCtxt, }; use rustc_span::symbol::sym; -use std::convert::TryInto; use std::ops::ControlFlow; use crate::errors::UnusedGenericParams; diff --git a/compiler/rustc_parse/src/parser/attr.rs b/compiler/rustc_parse/src/parser/attr.rs index c7d239b647f35..686454a8f1811 100644 --- a/compiler/rustc_parse/src/parser/attr.rs +++ b/compiler/rustc_parse/src/parser/attr.rs @@ -6,7 +6,6 @@ use rustc_ast::attr; use rustc_ast::token::{self, Delimiter, Nonterminal}; use rustc_errors::{error_code, fluent, Diagnostic, IntoDiagnostic, PResult}; use rustc_span::{sym, BytePos, Span}; -use std::convert::TryInto; // Public for rustfmt usage #[derive(Debug)] diff --git a/compiler/rustc_parse/src/parser/attr_wrapper.rs b/compiler/rustc_parse/src/parser/attr_wrapper.rs index a084a70108859..b97f22417cb7b 100644 --- a/compiler/rustc_parse/src/parser/attr_wrapper.rs +++ b/compiler/rustc_parse/src/parser/attr_wrapper.rs @@ -8,7 +8,6 @@ use rustc_errors::PResult; use rustc_session::parse::ParseSess; use rustc_span::{sym, Span, DUMMY_SP}; -use std::convert::TryInto; use std::ops::Range; /// A wrapper type to ensure that the parser handles outer attributes correctly. diff --git a/compiler/rustc_parse/src/parser/item.rs b/compiler/rustc_parse/src/parser/item.rs index 03f25392a7c1f..7ebcda249e23a 100644 --- a/compiler/rustc_parse/src/parser/item.rs +++ b/compiler/rustc_parse/src/parser/item.rs @@ -21,7 +21,6 @@ use rustc_span::lev_distance::lev_distance; use rustc_span::source_map::{self, Span}; use rustc_span::symbol::{kw, sym, Ident, Symbol}; use rustc_span::DUMMY_SP; -use std::convert::TryFrom; use std::mem; use thin_vec::ThinVec; use tracing::debug; diff --git a/compiler/rustc_query_system/src/dep_graph/graph.rs b/compiler/rustc_query_system/src/dep_graph/graph.rs index 38c7c6cce6765..0e7d628c1eb63 100644 --- a/compiler/rustc_query_system/src/dep_graph/graph.rs +++ b/compiler/rustc_query_system/src/dep_graph/graph.rs @@ -46,7 +46,7 @@ impl DepNodeIndex { pub const FOREVER_RED_NODE: DepNodeIndex = DepNodeIndex::from_u32(1); } -impl std::convert::From for QueryInvocationId { +impl From for QueryInvocationId { #[inline] fn from(dep_node_index: DepNodeIndex) -> Self { QueryInvocationId(dep_node_index.as_u32()) diff --git a/compiler/rustc_query_system/src/dep_graph/serialized.rs b/compiler/rustc_query_system/src/dep_graph/serialized.rs index 3b20ec70d73cb..d292f4beef2eb 100644 --- a/compiler/rustc_query_system/src/dep_graph/serialized.rs +++ b/compiler/rustc_query_system/src/dep_graph/serialized.rs @@ -22,7 +22,6 @@ use rustc_index::vec::{Idx, IndexVec}; use rustc_serialize::opaque::{FileEncodeResult, FileEncoder, IntEncodedWithFixedSize, MemDecoder}; use rustc_serialize::{Decodable, Decoder, Encodable}; use smallvec::SmallVec; -use std::convert::TryInto; // The maximum value of `SerializedDepNodeIndex` leaves the upper two bits // unused so that we can store multiple index types in `CompressedHybridIndex`, diff --git a/compiler/rustc_query_system/src/query/caches.rs b/compiler/rustc_query_system/src/query/caches.rs index 4c4680b5d8ea8..f65846fc77f6e 100644 --- a/compiler/rustc_query_system/src/query/caches.rs +++ b/compiler/rustc_query_system/src/query/caches.rs @@ -9,7 +9,6 @@ use rustc_data_structures::sharded::Sharded; use rustc_data_structures::sync::Lock; use rustc_data_structures::sync::WorkerLocal; use rustc_index::vec::{Idx, IndexVec}; -use std::default::Default; use std::fmt::Debug; use std::hash::Hash; use std::marker::PhantomData; diff --git a/compiler/rustc_query_system/src/query/job.rs b/compiler/rustc_query_system/src/query/job.rs index 49bbcf5780459..701bbde6ad23f 100644 --- a/compiler/rustc_query_system/src/query/job.rs +++ b/compiler/rustc_query_system/src/query/job.rs @@ -22,8 +22,8 @@ use { rustc_data_structures::{jobserver, OnDrop}, rustc_rayon_core as rayon_core, rustc_span::DUMMY_SP, - std::iter::{self, FromIterator}, - std::{mem, process}, + std::iter, + std::process, }; /// Represents a span and a query key. @@ -247,7 +247,7 @@ impl QueryLatch { jobserver::release_thread(); waiter.condvar.wait(&mut info); // Release the lock before we potentially block in `acquire_thread` - mem::drop(info); + drop(info); jobserver::acquire_thread(); } } diff --git a/compiler/rustc_save_analysis/src/lib.rs b/compiler/rustc_save_analysis/src/lib.rs index 7735c571310dd..6c310abf10ac5 100644 --- a/compiler/rustc_save_analysis/src/lib.rs +++ b/compiler/rustc_save_analysis/src/lib.rs @@ -36,7 +36,6 @@ use rustc_span::symbol::Ident; use rustc_span::*; use std::cell::Cell; -use std::default::Default; use std::env; use std::fs::File; use std::io::BufWriter; diff --git a/compiler/rustc_serialize/src/opaque.rs b/compiler/rustc_serialize/src/opaque.rs index 0afeb86fceb24..0e0ebc79eb2e3 100644 --- a/compiler/rustc_serialize/src/opaque.rs +++ b/compiler/rustc_serialize/src/opaque.rs @@ -1,6 +1,5 @@ use crate::leb128::{self, largest_max_leb128_len}; use crate::serialize::{Decodable, Decoder, Encodable, Encoder}; -use std::convert::TryInto; use std::fs::File; use std::io::{self, Write}; use std::mem::MaybeUninit; diff --git a/compiler/rustc_session/src/config.rs b/compiler/rustc_session/src/config.rs index 7a20100fd3133..6de564a3a0692 100644 --- a/compiler/rustc_session/src/config.rs +++ b/compiler/rustc_session/src/config.rs @@ -32,7 +32,7 @@ use std::collections::btree_map::{ use std::collections::{BTreeMap, BTreeSet}; use std::fmt; use std::hash::Hash; -use std::iter::{self, FromIterator}; +use std::iter; use std::path::{Path, PathBuf}; use std::str::{self, FromStr}; diff --git a/compiler/rustc_session/src/filesearch.rs b/compiler/rustc_session/src/filesearch.rs index 1b66773be6f08..1855a49c1ecdf 100644 --- a/compiler/rustc_session/src/filesearch.rs +++ b/compiler/rustc_session/src/filesearch.rs @@ -3,7 +3,6 @@ use smallvec::{smallvec, SmallVec}; use std::env; use std::fs; -use std::iter::FromIterator; use std::path::{Path, PathBuf}; use crate::search_paths::{PathKind, SearchPath}; diff --git a/compiler/rustc_span/src/source_map.rs b/compiler/rustc_span/src/source_map.rs index 2ae57d9e56d7c..43a3172270733 100644 --- a/compiler/rustc_span/src/source_map.rs +++ b/compiler/rustc_span/src/source_map.rs @@ -15,11 +15,10 @@ pub use crate::*; use rustc_data_structures::fx::FxHashMap; use rustc_data_structures::stable_hasher::StableHasher; use rustc_data_structures::sync::{AtomicU32, Lrc, MappedReadGuard, ReadGuard, RwLock}; +use std::cmp; use std::hash::Hash; use std::path::{Path, PathBuf}; use std::sync::atomic::Ordering; -use std::{clone::Clone, cmp}; -use std::{convert::TryFrom, unreachable}; use std::fs; use std::io; diff --git a/compiler/rustc_span/src/symbol.rs b/compiler/rustc_span/src/symbol.rs index 1fcf8c7a8bf13..d0fe598ce086e 100644 --- a/compiler/rustc_span/src/symbol.rs +++ b/compiler/rustc_span/src/symbol.rs @@ -9,7 +9,6 @@ use rustc_data_structures::sync::Lock; use rustc_macros::HashStable_Generic; use rustc_serialize::{Decodable, Decoder, Encodable, Encoder}; -use std::cmp::{Ord, PartialEq, PartialOrd}; use std::fmt; use std::hash::{Hash, Hasher}; use std::str; @@ -1974,7 +1973,6 @@ pub mod kw { /// For example `sym::rustfmt` or `sym::u8`. pub mod sym { use super::Symbol; - use std::convert::TryInto; #[doc(inline)] pub use super::sym_generated::*; diff --git a/compiler/rustc_target/src/lib.rs b/compiler/rustc_target/src/lib.rs index b69a0a645a415..dc2cc23ffb1e4 100644 --- a/compiler/rustc_target/src/lib.rs +++ b/compiler/rustc_target/src/lib.rs @@ -18,7 +18,6 @@ #![deny(rustc::untranslatable_diagnostic)] #![deny(rustc::diagnostic_outside_of_impl)] -use std::iter::FromIterator; use std::path::{Path, PathBuf}; #[macro_use] diff --git a/compiler/rustc_target/src/spec/mod.rs b/compiler/rustc_target/src/spec/mod.rs index 1db1d7e85adcc..be994eda14c00 100644 --- a/compiler/rustc_target/src/spec/mod.rs +++ b/compiler/rustc_target/src/spec/mod.rs @@ -45,9 +45,7 @@ use rustc_span::symbol::{sym, Symbol}; use serde_json::Value; use std::borrow::Cow; use std::collections::BTreeMap; -use std::convert::TryFrom; use std::hash::{Hash, Hasher}; -use std::iter::FromIterator; use std::ops::{Deref, DerefMut}; use std::path::{Path, PathBuf}; use std::str::FromStr; diff --git a/compiler/rustc_type_ir/src/sty.rs b/compiler/rustc_type_ir/src/sty.rs index 3ed616d709b1e..9aa2be124e294 100644 --- a/compiler/rustc_type_ir/src/sty.rs +++ b/compiler/rustc_type_ir/src/sty.rs @@ -1,6 +1,6 @@ #![allow(rustc::usage_of_ty_tykind)] -use std::cmp::{Eq, Ord, Ordering, PartialEq, PartialOrd}; +use std::cmp::Ordering; use std::{fmt, hash}; use crate::DebruijnIndex;