Remove re-export.

Cargo.lock

@@ -3684,6 +3684,7 @@ dependencies = [
  "rustc_llvm",
  "rustc_metadata",
  "rustc_middle",
+ "rustc_query_system",
  "rustc_serialize",
  "rustc_session",
  "rustc_span",
@@ -3717,6 +3718,7 @@ dependencies = [
  "rustc_macros",
  "rustc_metadata",
  "rustc_middle",
+ "rustc_query_system",
  "rustc_serialize",
  "rustc_session",
  "rustc_span",
@@ -3744,6 +3746,7 @@ dependencies = [
  "rustc_macros",
  "rustc_middle",
  "rustc_mir_dataflow",
+ "rustc_query_system",
  "rustc_session",
  "rustc_span",
  "rustc_target",
@@ -4178,6 +4181,7 @@ dependencies = [
  "rustc_index",
  "rustc_middle",
  "rustc_mir_dataflow",
+ "rustc_query_system",
  "rustc_serialize",
  "rustc_session",
  "rustc_span",
@@ -4422,6 +4426,7 @@ dependencies = [
  "rustc_data_structures",
  "rustc_hir",
  "rustc_middle",
+ "rustc_query_system",
  "rustc_session",
  "rustc_span",
  "rustc_target",
@@ -4465,6 +4470,7 @@ dependencies = [
  "rustc_macros",
  "rustc_middle",
  "rustc_parse_format",
+ "rustc_query_system",
  "rustc_session",
  "rustc_span",
  "rustc_target",

compiler/rustc_codegen_llvm/Cargo.toml

@@ -26,6 +26,7 @@ rustc_hir = { path = "../rustc_hir" }
 rustc_index = { path = "../rustc_index" }
 rustc_llvm = { path = "../rustc_llvm" }
 rustc_metadata = { path = "../rustc_metadata" }
+rustc_query_system = { path = "../rustc_query_system" }
 rustc_session = { path = "../rustc_session" }
 rustc_serialize = { path = "../rustc_serialize" }
 rustc_target = { path = "../rustc_target" }

compiler/rustc_codegen_llvm/src/debuginfo/metadata.rs

@@ -26,13 +26,13 @@ use rustc_fs_util::path_to_c_string;
 use rustc_hir::def::CtorKind;
 use rustc_hir::def_id::{DefId, LOCAL_CRATE};
 use rustc_index::vec::{Idx, IndexVec};
-use rustc_middle::ich::NodeIdHashingMode;
 use rustc_middle::mir::{self, GeneratorLayout};
 use rustc_middle::ty::layout::{self, IntegerExt, LayoutOf, PrimitiveExt, TyAndLayout};
 use rustc_middle::ty::subst::GenericArgKind;
 use rustc_middle::ty::Instance;
 use rustc_middle::ty::{self, AdtKind, GeneratorSubsts, ParamEnv, Ty, TyCtxt};
 use rustc_middle::{bug, span_bug};
+use rustc_query_system::ich::NodeIdHashingMode;
 use rustc_session::config::{self, DebugInfo};
 use rustc_span::symbol::Symbol;
 use rustc_span::FileNameDisplayPreference;

compiler/rustc_codegen_ssa/Cargo.toml

@@ -33,6 +33,7 @@ rustc_incremental = { path = "../rustc_incremental" }
 rustc_index = { path = "../rustc_index" }
 rustc_macros = { path = "../rustc_macros" }
 rustc_metadata = { path = "../rustc_metadata" }
+rustc_query_system = { path = "../rustc_query_system" }
 rustc_target = { path = "../rustc_target" }
 rustc_session = { path = "../rustc_session" }
 

compiler/rustc_codegen_ssa/src/debuginfo/type_names.rs

@@ -16,10 +16,10 @@ use rustc_data_structures::stable_hasher::{HashStable, StableHasher};
 use rustc_hir as hir;
 use rustc_hir::def_id::DefId;
 use rustc_hir::definitions::{DefPathData, DefPathDataName, DisambiguatedDefPathData};
-use rustc_middle::ich::NodeIdHashingMode;
 use rustc_middle::ty::layout::IntegerExt;
 use rustc_middle::ty::subst::{GenericArgKind, SubstsRef};
 use rustc_middle::ty::{self, AdtDef, ExistentialProjection, Ty, TyCtxt};
+use rustc_query_system::ich::NodeIdHashingMode;
 use rustc_target::abi::{Integer, TagEncoding, Variants};
 use smallvec::SmallVec;
 

compiler/rustc_const_eval/Cargo.toml

@@ -21,6 +21,7 @@ rustc_infer = { path = "../rustc_infer" }
 rustc_macros = { path = "../rustc_macros" }
 rustc_middle = { path = "../rustc_middle" }
 rustc_mir_dataflow = { path = "../rustc_mir_dataflow" }
+rustc_query_system = { path = "../rustc_query_system" }
 rustc_session = { path = "../rustc_session" }
 rustc_target = { path = "../rustc_target" }
 rustc_trait_selection = { path = "../rustc_trait_selection" }

compiler/rustc_const_eval/src/interpret/eval_context.rs

@@ -6,13 +6,13 @@ use rustc_data_structures::stable_hasher::{HashStable, StableHasher};
 use rustc_hir::{self as hir, def_id::DefId, definitions::DefPathData};
 use rustc_index::vec::IndexVec;
 use rustc_macros::HashStable;
-use rustc_middle::ich::StableHashingContext;
 use rustc_middle::mir;
 use rustc_middle::ty::layout::{self, LayoutError, LayoutOf, LayoutOfHelpers, TyAndLayout};
 use rustc_middle::ty::{
     self, query::TyCtxtAt, subst::SubstsRef, ParamEnv, Ty, TyCtxt, TypeFoldable,
 };
 use rustc_mir_dataflow::storage::AlwaysLiveLocals;
+use rustc_query_system::ich::StableHashingContext;
 use rustc_session::Limit;
 use rustc_span::{Pos, Span};
 use rustc_target::abi::{Align, HasDataLayout, Size, TargetDataLayout};

compiler/rustc_macros/src/hash_stable.rs

@@ -116,14 +116,14 @@ pub fn hash_stable_derive(mut s: synstructure::Structure<'_>) -> proc_macro2::To
     s.bound_impl(
         quote!(
             ::rustc_data_structures::stable_hasher::HashStable<
-                ::rustc_middle::ich::StableHashingContext<'__ctx>,
+                ::rustc_query_system::ich::StableHashingContext<'__ctx>,
             >
         ),
         quote! {
             #[inline]
             fn hash_stable(
                 &self,
-                __hcx: &mut ::rustc_middle::ich::StableHashingContext<'__ctx>,
+                __hcx: &mut ::rustc_query_system::ich::StableHashingContext<'__ctx>,
                 __hasher: &mut ::rustc_data_structures::stable_hasher::StableHasher) {
                 #discriminant
                 match *self { #body }

compiler/rustc_middle/src/dep_graph/mod.rs

@@ -1,7 +1,7 @@
-use crate::ich::StableHashingContext;
 use crate::ty::{self, TyCtxt};
 use rustc_data_structures::profiling::SelfProfilerRef;
 use rustc_data_structures::sync::Lock;
+use rustc_query_system::ich::StableHashingContext;
 use rustc_session::Session;
 
 #[macro_use]

compiler/rustc_middle/src/hir/map/collector.rs

@@ -1,7 +1,6 @@
 use crate::arena::Arena;
 use crate::hir::map::Map;
 use crate::hir::{IndexedHir, OwnerNodes, ParentedNode};
-use crate::ich::StableHashingContext;
 use rustc_data_structures::fingerprint::Fingerprint;
 use rustc_data_structures::fx::FxHashMap;
 use rustc_data_structures::stable_hasher::{HashStable, StableHasher};
@@ -12,6 +11,7 @@ use rustc_hir::definitions;
 use rustc_hir::intravisit::{self, NestedVisitorMap, Visitor};
 use rustc_hir::*;
 use rustc_index::vec::{Idx, IndexVec};
+use rustc_query_system::ich::StableHashingContext;
 use rustc_session::Session;
 use rustc_span::source_map::SourceMap;
 use rustc_span::{Span, DUMMY_SP};

compiler/rustc_middle/src/hir/mod.rs

@@ -6,7 +6,6 @@ pub mod exports;
 pub mod map;
 pub mod place;
 
-use crate::ich::StableHashingContext;
 use crate::ty::query::Providers;
 use crate::ty::TyCtxt;
 use rustc_ast::Attribute;
@@ -16,6 +15,7 @@ use rustc_data_structures::stable_hasher::{HashStable, StableHasher};
 use rustc_hir::def_id::LocalDefId;
 use rustc_hir::*;
 use rustc_index::vec::{Idx, IndexVec};
+use rustc_query_system::ich::StableHashingContext;
 use rustc_span::DUMMY_SP;
 use std::collections::BTreeMap;
 

compiler/rustc_middle/src/ich.rs

@@ -1,5 +1,3 @@
 //! ICH - Incremental Compilation Hash
 
-pub use rustc_query_system::ich::{NodeIdHashingMode, StableHashingContext};
-
 mod impls_ty;

compiler/rustc_middle/src/ich/impls_ty.rs

@@ -1,13 +1,13 @@
 //! This module contains `HashStable` implementations for various data types
 //! from `rustc_middle::ty` in no particular order.
 
-use crate::ich::StableHashingContext;
 use crate::middle::region;
 use crate::mir;
 use crate::ty;
 use rustc_data_structures::fingerprint::Fingerprint;
 use rustc_data_structures::fx::FxHashMap;
 use rustc_data_structures::stable_hasher::{HashStable, StableHasher, ToStableHashKey};
+use rustc_query_system::ich::StableHashingContext;
 use std::cell::RefCell;
 use std::mem;
 

compiler/rustc_middle/src/lint.rs

@@ -1,11 +1,11 @@
 use std::cmp;
 
-use crate::ich::StableHashingContext;
 use rustc_data_structures::fx::FxHashMap;
 use rustc_data_structures::stable_hasher::{HashStable, StableHasher};
 use rustc_errors::{DiagnosticBuilder, DiagnosticId};
 use rustc_hir::HirId;
 use rustc_index::vec::IndexVec;
+use rustc_query_system::ich::StableHashingContext;
 use rustc_session::lint::{
     builtin::{self, FORBIDDEN_LINT_GROUPS},
     FutureIncompatibilityReason, Level, Lint, LintId,

compiler/rustc_middle/src/middle/region.rs

@@ -6,10 +6,10 @@
 //!
 //! [rustc dev guide]: https://rustc-dev-guide.rust-lang.org/borrow_check.html
 
-use crate::ich::{NodeIdHashingMode, StableHashingContext};
 use crate::ty::TyCtxt;
 use rustc_hir as hir;
 use rustc_hir::Node;
+use rustc_query_system::ich::{NodeIdHashingMode, StableHashingContext};
 
 use rustc_data_structures::fx::FxHashMap;
 use rustc_data_structures::stable_hasher::{HashStable, StableHasher};

compiler/rustc_middle/src/mir/mod.rs

@@ -803,8 +803,8 @@ pub enum ImplicitSelfKind {
 TrivialTypeFoldableAndLiftImpls! { BindingForm<'tcx>, }
 
 mod binding_form_impl {
-    use crate::ich::StableHashingContext;
     use rustc_data_structures::stable_hasher::{HashStable, StableHasher};
+    use rustc_query_system::ich::StableHashingContext;
 
     impl<'a, 'tcx> HashStable<StableHashingContext<'a>> for super::BindingForm<'tcx> {
         fn hash_stable(&self, hcx: &mut StableHashingContext<'a>, hasher: &mut StableHasher) {

compiler/rustc_middle/src/mir/mono.rs

@@ -1,5 +1,4 @@
 use crate::dep_graph::{DepNode, WorkProduct, WorkProductId};
-use crate::ich::{NodeIdHashingMode, StableHashingContext};
 use crate::ty::{subst::InternalSubsts, Instance, InstanceDef, SymbolName, TyCtxt};
 use rustc_attr::InlineAttr;
 use rustc_data_structures::base_n;
@@ -8,6 +7,7 @@ use rustc_data_structures::fx::FxHashMap;
 use rustc_data_structures::stable_hasher::{HashStable, StableHasher};
 use rustc_hir::def_id::{CrateNum, DefId, LOCAL_CRATE};
 use rustc_hir::{HirId, ItemId};
+use rustc_query_system::ich::{NodeIdHashingMode, StableHashingContext};
 use rustc_session::config::OptLevel;
 use rustc_span::source_map::Span;
 use rustc_span::symbol::Symbol;

compiler/rustc_middle/src/traits/query.rs

@@ -5,7 +5,6 @@
 //! The providers for the queries defined here can be found in
 //! `rustc_traits`.
 
-use crate::ich::StableHashingContext;
 use crate::infer::canonical::{Canonical, QueryResponse};
 use crate::ty::error::TypeError;
 use crate::ty::subst::GenericArg;
@@ -14,6 +13,7 @@ use crate::ty::{self, Ty, TyCtxt};
 use rustc_data_structures::stable_hasher::{HashStable, StableHasher};
 use rustc_data_structures::sync::Lrc;
 use rustc_errors::struct_span_err;
+use rustc_query_system::ich::StableHashingContext;
 use rustc_span::source_map::Span;
 use std::iter::FromIterator;
 use std::mem;

compiler/rustc_middle/src/ty/adt.rs

@@ -1,4 +1,3 @@
-use crate::ich::StableHashingContext;
 use crate::mir::interpret::ErrorHandled;
 use crate::ty;
 use crate::ty::util::{Discr, IntTypeExt};
@@ -11,6 +10,7 @@ use rustc_hir as hir;
 use rustc_hir::def::{DefKind, Res};
 use rustc_hir::def_id::DefId;
 use rustc_index::vec::{Idx, IndexVec};
+use rustc_query_system::ich::StableHashingContext;
 use rustc_serialize::{self, Encodable, Encoder};
 use rustc_session::DataTypeKind;
 use rustc_span::symbol::sym;

compiler/rustc_middle/src/ty/context.rs

@@ -3,7 +3,6 @@
 use crate::arena::Arena;
 use crate::dep_graph::DepGraph;
 use crate::hir::place::Place as HirPlace;
-use crate::ich::{NodeIdHashingMode, StableHashingContext};
 use crate::infer::canonical::{Canonical, CanonicalVarInfo, CanonicalVarInfos};
 use crate::lint::{struct_lint_level, LintDiagnosticBuilder, LintLevelSource};
 use crate::middle;
@@ -45,6 +44,7 @@ use rustc_hir::{
 use rustc_index::vec::{Idx, IndexVec};
 use rustc_macros::HashStable;
 use rustc_middle::mir::FakeReadCause;
+use rustc_query_system::ich::{NodeIdHashingMode, StableHashingContext};
 use rustc_serialize::opaque::{FileEncodeResult, FileEncoder};
 use rustc_session::config::{BorrowckMode, CrateType, OutputFilenames};
 use rustc_session::lint::{Level, Lint};

compiler/rustc_middle/src/ty/fast_reject.rs

@@ -1,7 +1,7 @@
-use crate::ich::StableHashingContext;
 use crate::ty::{self, Ty, TyCtxt};
 use rustc_data_structures::stable_hasher::{HashStable, StableHasher};
 use rustc_hir::def_id::DefId;
+use rustc_query_system::ich::StableHashingContext;
 use std::fmt::Debug;
 use std::hash::Hash;
 use std::mem;

compiler/rustc_middle/src/ty/layout.rs

@@ -2,7 +2,6 @@ use crate::middle::codegen_fn_attrs::CodegenFnAttrFlags;
 use crate::mir::{GeneratorLayout, GeneratorSavedLocal};
 use crate::ty::subst::Subst;
 use crate::ty::{self, subst::SubstsRef, ReprOptions, Ty, TyCtxt, TypeFoldable};
-
 use rustc_ast as ast;
 use rustc_attr as attr;
 use rustc_hir as hir;

compiler/rustc_middle/src/ty/mod.rs

@@ -20,7 +20,6 @@ pub use generics::*;
 pub use vtable::*;
 
 use crate::hir::exports::ExportMap;
-use crate::ich::StableHashingContext;
 use crate::mir::{Body, GeneratorLayout};
 use crate::traits::{self, Reveal};
 use crate::ty;
@@ -36,6 +35,7 @@ use rustc_hir::def::{CtorKind, CtorOf, DefKind, Res};
 use rustc_hir::def_id::{CrateNum, DefId, LocalDefId, LocalDefIdMap, CRATE_DEF_INDEX};
 use rustc_hir::Node;
 use rustc_macros::HashStable;
+use rustc_query_system::ich::StableHashingContext;
 use rustc_session::cstore::CrateStoreDyn;
 use rustc_span::symbol::{kw, Ident, Symbol};
 use rustc_span::Span;

compiler/rustc_middle/src/ty/util.rs

@@ -1,6 +1,5 @@
 //! Miscellaneous type-system utilities that are too small to deserve their own modules.
 
-use crate::ich::NodeIdHashingMode;
 use crate::middle::codegen_fn_attrs::CodegenFnAttrFlags;
 use crate::ty::fold::TypeFolder;
 use crate::ty::layout::IntegerExt;
@@ -18,6 +17,7 @@ use rustc_hir as hir;
 use rustc_hir::def::DefKind;
 use rustc_hir::def_id::DefId;
 use rustc_macros::HashStable;
+use rustc_query_system::ich::NodeIdHashingMode;
 use rustc_span::DUMMY_SP;
 use rustc_target::abi::{Integer, Size, TargetDataLayout};
 use smallvec::SmallVec;

compiler/rustc_mir_transform/Cargo.toml

@@ -19,6 +19,7 @@ rustc_index = { path = "../rustc_index" }
 rustc_middle = { path = "../rustc_middle" }
 rustc_const_eval = { path = "../rustc_const_eval" }
 rustc_mir_dataflow = { path = "../rustc_mir_dataflow" }
+rustc_query_system = { path = "../rustc_query_system" }
 rustc_serialize = { path = "../rustc_serialize" }
 rustc_session = { path = "../rustc_session" }
 rustc_target = { path = "../rustc_target" }

compiler/rustc_mir_transform/src/coverage/mod.rs

@@ -21,7 +21,6 @@ use rustc_data_structures::sync::Lrc;
 use rustc_index::vec::IndexVec;
 use rustc_middle::hir;
 use rustc_middle::hir::map::blocks::FnLikeNode;
-use rustc_middle::ich::StableHashingContext;
 use rustc_middle::middle::codegen_fn_attrs::CodegenFnAttrFlags;
 use rustc_middle::mir::coverage::*;
 use rustc_middle::mir::dump_enabled;
@@ -30,6 +29,7 @@ use rustc_middle::mir::{
     TerminatorKind,
 };
 use rustc_middle::ty::TyCtxt;
+use rustc_query_system::ich::StableHashingContext;
 use rustc_span::def_id::DefId;
 use rustc_span::source_map::SourceMap;
 use rustc_span::{CharPos, ExpnKind, Pos, SourceFile, Span, Symbol};

compiler/rustc_query_impl/src/lib.rs

@@ -20,10 +20,10 @@ use rustc_data_structures::fingerprint::Fingerprint;
 use rustc_data_structures::stable_hasher::{HashStable, StableHasher};
 use rustc_errors::DiagnosticBuilder;
 use rustc_middle::dep_graph;
-use rustc_middle::ich::StableHashingContext;
 use rustc_middle::ty::query::{query_keys, query_storage, query_stored, query_values};
 use rustc_middle::ty::query::{Providers, QueryEngine};
 use rustc_middle::ty::{self, TyCtxt};
+use rustc_query_system::ich::StableHashingContext;
 use rustc_span::Span;
 
 #[macro_use]

compiler/rustc_query_impl/src/plumbing.rs

@@ -36,7 +36,7 @@ impl<'tcx> std::ops::Deref for QueryCtxt<'tcx> {
 
 impl HasDepContext for QueryCtxt<'tcx> {
     type DepKind = rustc_middle::dep_graph::DepKind;
-    type StableHashingContext = rustc_middle::ich::StableHashingContext<'tcx>;
+    type StableHashingContext = rustc_query_system::ich::StableHashingContext<'tcx>;
     type DepContext = TyCtxt<'tcx>;
 
     #[inline]

compiler/rustc_symbol_mangling/Cargo.toml

@@ -16,4 +16,5 @@ rustc_middle = { path = "../rustc_middle" }
 rustc_hir = { path = "../rustc_hir" }
 rustc_target = { path = "../rustc_target" }
 rustc_data_structures = { path = "../rustc_data_structures" }
+rustc_query_system = { path = "../rustc_query_system" }
 rustc_session = { path = "../rustc_session" }

compiler/rustc_symbol_mangling/src/legacy.rs

@@ -1,12 +1,12 @@
 use rustc_data_structures::stable_hasher::{HashStable, StableHasher};
 use rustc_hir::def_id::CrateNum;
 use rustc_hir::definitions::{DefPathData, DisambiguatedDefPathData};
-use rustc_middle::ich::NodeIdHashingMode;
 use rustc_middle::mir::interpret::{ConstValue, Scalar};
 use rustc_middle::ty::print::{PrettyPrinter, Print, Printer};
 use rustc_middle::ty::subst::{GenericArg, GenericArgKind};
 use rustc_middle::ty::{self, Instance, Ty, TyCtxt, TypeFoldable};
 use rustc_middle::util::common::record_time;
+use rustc_query_system::ich::NodeIdHashingMode;
 
 use tracing::debug;
 

compiler/rustc_trait_selection/Cargo.toml

@@ -18,6 +18,7 @@ rustc_hir = { path = "../rustc_hir" }
 rustc_index = { path = "../rustc_index" }
 rustc_infer = { path = "../rustc_infer" }
 rustc_macros = { path = "../rustc_macros" }
+rustc_query_system = { path = "../rustc_query_system" }
 rustc_session = { path = "../rustc_session" }
 rustc_span = { path = "../rustc_span" }
 rustc_target = { path = "../rustc_target" }