Move rustc_middle::middle::cstore to rustc_session.

Cargo.lock

@@ -4382,6 +4382,7 @@ dependencies = [
  "rustc_errors",
  "rustc_feature",
  "rustc_fs_util",
+ "rustc_hir",
  "rustc_lint_defs",
  "rustc_macros",
  "rustc_serialize",

compiler/rustc_codegen_cranelift/src/archive.rs

@@ -242,7 +242,7 @@ enum BuilderKind {
     fn inject_dll_import_lib(
         &mut self,
         _lib_name: &str,
-        _dll_imports: &[rustc_middle::middle::cstore::DllImport],
+        _dll_imports: &[rustc_session::cstore::DllImport],
         _tmpdir: &rustc_data_structures::temp_dir::MaybeTempDir,
     ) {
         bug!("injecting dll imports is not supported");

compiler/rustc_codegen_gcc/src/archive.rs

@@ -1,12 +1,11 @@
 use std::fs::File;
 use std::path::{Path, PathBuf};
 
-use rustc_session::Session;
 use rustc_codegen_ssa::back::archive::ArchiveBuilder;
+use rustc_session::Session;
 
 use rustc_data_structures::temp_dir::MaybeTempDir;
-use rustc_middle::middle::cstore::DllImport;
-
+use rustc_session::cstore::DllImport;
 
 struct ArchiveConfig<'a> {
     sess: &'a Session,

compiler/rustc_codegen_llvm/src/back/archive.rs

@@ -11,7 +11,7 @@
 use crate::llvm::{self, ArchiveKind, LLVMMachineType, LLVMRustCOFFShortExport};
 use rustc_codegen_ssa::back::archive::ArchiveBuilder;
 use rustc_data_structures::temp_dir::MaybeTempDir;
-use rustc_middle::middle::cstore::{DllCallingConvention, DllImport};
+use rustc_session::cstore::{DllCallingConvention, DllImport};
 use rustc_session::Session;
 
 struct ArchiveConfig<'a> {

compiler/rustc_codegen_ssa/src/back/archive.rs

@@ -1,5 +1,5 @@
 use rustc_data_structures::temp_dir::MaybeTempDir;
-use rustc_middle::middle::cstore::DllImport;
+use rustc_session::cstore::DllImport;
 use rustc_session::Session;
 use rustc_span::symbol::Symbol;
 

compiler/rustc_codegen_ssa/src/back/link.rs

@@ -3,10 +3,10 @@
 use rustc_errors::{ErrorReported, Handler};
 use rustc_fs_util::fix_windows_verbatim_for_gcc;
 use rustc_hir::def_id::CrateNum;
-use rustc_middle::middle::cstore::DllImport;
 use rustc_middle::middle::dependency_format::Linkage;
 use rustc_session::config::{self, CFGuard, CrateType, DebugInfo, LdImpl, Strip};
 use rustc_session::config::{OutputFilenames, OutputType, PrintRequest};
+use rustc_session::cstore::DllImport;
 use rustc_session::output::{check_file_is_writeable, invalid_output_for_target, out_filename};
 use rustc_session::search_paths::PathKind;
 use rustc_session::utils::NativeLibKind;

compiler/rustc_codegen_ssa/src/back/metadata.rs

@@ -8,7 +8,7 @@
 use rustc_data_structures::owning_ref::OwningRef;
 use rustc_data_structures::rustc_erase_owner;
 use rustc_data_structures::sync::MetadataRef;
-use rustc_middle::middle::cstore::MetadataLoader;
+use rustc_session::cstore::MetadataLoader;
 use rustc_target::spec::Target;
 
 use crate::METADATA_FILENAME;

compiler/rustc_codegen_ssa/src/lib.rs

@@ -25,10 +25,10 @@
 use rustc_hir::def_id::CrateNum;
 use rustc_hir::LangItem;
 use rustc_middle::dep_graph::WorkProduct;
-use rustc_middle::middle::cstore::{self, CrateSource};
 use rustc_middle::middle::dependency_format::Dependencies;
 use rustc_middle::ty::query::Providers;
 use rustc_session::config::{CrateType, OutputFilenames, OutputType, RUST_CGU_EXT};
+use rustc_session::cstore::{self, CrateSource};
 use rustc_session::utils::NativeLibKind;
 use rustc_span::symbol::Symbol;
 use std::path::{Path, PathBuf};

compiler/rustc_codegen_ssa/src/traits/backend.rs

@@ -8,12 +8,12 @@
 use rustc_errors::ErrorReported;
 use rustc_metadata::EncodedMetadata;
 use rustc_middle::dep_graph::{WorkProduct, WorkProductId};
-use rustc_middle::middle::cstore::MetadataLoaderDyn;
 use rustc_middle::ty::layout::{FnAbiOf, HasTyCtxt, LayoutOf, TyAndLayout};
 use rustc_middle::ty::query::Providers;
 use rustc_middle::ty::{Ty, TyCtxt};
 use rustc_session::{
     config::{self, OutputFilenames, PrintRequest},
+    cstore::MetadataLoaderDyn,
     Session,
 };
 use rustc_span::symbol::Symbol;

compiler/rustc_driver/src/lib.rs

@@ -25,12 +25,12 @@
 use rustc_interface::{interface, Queries};
 use rustc_lint::LintStore;
 use rustc_metadata::locator;
-use rustc_middle::middle::cstore::MetadataLoader;
 use rustc_save_analysis as save;
 use rustc_save_analysis::DumpHandler;
 use rustc_serialize::json::{self, ToJson};
 use rustc_session::config::{nightly_options, CG_OPTIONS, DB_OPTIONS};
 use rustc_session::config::{ErrorOutputType, Input, OutputType, PrintRequest, TrimmedDefPaths};
+use rustc_session::cstore::MetadataLoader;
 use rustc_session::getopts;
 use rustc_session::lint::{Lint, LintId};
 use rustc_session::{config, DiagnosticOutput, Session};

compiler/rustc_interface/src/passes.rs

@@ -19,7 +19,6 @@
 use rustc_metadata::{encode_metadata, EncodedMetadata};
 use rustc_middle::arena::Arena;
 use rustc_middle::dep_graph::DepGraph;
-use rustc_middle::middle::cstore::{MetadataLoader, MetadataLoaderDyn};
 use rustc_middle::ty::query::Providers;
 use rustc_middle::ty::{self, GlobalCtxt, ResolverOutputs, TyCtxt};
 use rustc_mir_build as mir_build;
@@ -30,6 +29,7 @@
 use rustc_resolve::{Resolver, ResolverArenas};
 use rustc_serialize::json;
 use rustc_session::config::{CrateType, Input, OutputFilenames, OutputType, PpMode, PpSourceMode};
+use rustc_session::cstore::{MetadataLoader, MetadataLoaderDyn};
 use rustc_session::lint;
 use rustc_session::output::{filename_for_input, filename_for_metadata};
 use rustc_session::search_paths::PathKind;

compiler/rustc_metadata/src/creader.rs

@@ -13,11 +13,11 @@
 use rustc_hir::def_id::{CrateNum, LocalDefId, StableCrateId, LOCAL_CRATE};
 use rustc_hir::definitions::Definitions;
 use rustc_index::vec::IndexVec;
-use rustc_middle::middle::cstore::{CrateDepKind, CrateSource, ExternCrate};
-use rustc_middle::middle::cstore::{ExternCrateSource, MetadataLoaderDyn};
 use rustc_middle::ty::TyCtxt;
 use rustc_serialize::json::ToJson;
 use rustc_session::config::{self, CrateType, ExternLocation};
+use rustc_session::cstore::{CrateDepKind, CrateSource, ExternCrate};
+use rustc_session::cstore::{ExternCrateSource, MetadataLoaderDyn};
 use rustc_session::lint::{self, BuiltinLintDiagnostics, ExternDepSpec};
 use rustc_session::output::validate_crate_name;
 use rustc_session::search_paths::PathKind;

compiler/rustc_metadata/src/dependency_format.rs

@@ -55,11 +55,11 @@
 
 use rustc_data_structures::fx::FxHashMap;
 use rustc_hir::def_id::CrateNum;
-use rustc_middle::middle::cstore::CrateDepKind;
-use rustc_middle::middle::cstore::LinkagePreference::{self, RequireDynamic, RequireStatic};
 use rustc_middle::middle::dependency_format::{Dependencies, DependencyList, Linkage};
 use rustc_middle::ty::TyCtxt;
 use rustc_session::config::CrateType;
+use rustc_session::cstore::CrateDepKind;
+use rustc_session::cstore::LinkagePreference::{self, RequireDynamic, RequireStatic};
 use rustc_target::spec::PanicStrategy;
 
 crate fn calculate(tcx: TyCtxt<'_>) -> Dependencies {

compiler/rustc_metadata/src/foreign_modules.rs

@@ -1,7 +1,7 @@
 use rustc_hir as hir;
 use rustc_hir::itemlikevisit::ItemLikeVisitor;
-use rustc_middle::middle::cstore::ForeignModule;
 use rustc_middle::ty::TyCtxt;
+use rustc_session::cstore::ForeignModule;
 
 crate fn collect(tcx: TyCtxt<'_>) -> Vec<ForeignModule> {
     let mut collector = Collector { modules: Vec::new() };

compiler/rustc_metadata/src/locator.rs

@@ -221,8 +221,8 @@
 use rustc_data_structures::svh::Svh;
 use rustc_data_structures::sync::MetadataRef;
 use rustc_errors::struct_span_err;
-use rustc_middle::middle::cstore::{CrateSource, MetadataLoader};
 use rustc_session::config::{self, CrateType};
+use rustc_session::cstore::{CrateSource, MetadataLoader};
 use rustc_session::filesearch::{FileDoesntMatch, FileMatches, FileSearch};
 use rustc_session::search_paths::PathKind;
 use rustc_session::utils::CanonicalizedPath;

compiler/rustc_metadata/src/native_libs.rs

@@ -3,8 +3,8 @@
 use rustc_errors::struct_span_err;
 use rustc_hir as hir;
 use rustc_hir::itemlikevisit::ItemLikeVisitor;
-use rustc_middle::middle::cstore::{DllCallingConvention, DllImport, NativeLib};
 use rustc_middle::ty::{List, ParamEnv, ParamEnvAnd, Ty, TyCtxt};
+use rustc_session::cstore::{DllCallingConvention, DllImport, NativeLib};
 use rustc_session::parse::feature_err;
 use rustc_session::utils::NativeLibKind;
 use rustc_session::Session;

compiler/rustc_metadata/src/rmeta/decoder.rs

@@ -21,8 +21,6 @@
 use rustc_hir::lang_items;
 use rustc_index::vec::{Idx, IndexVec};
 use rustc_middle::hir::exports::Export;
-use rustc_middle::middle::cstore::{CrateSource, ExternCrate};
-use rustc_middle::middle::cstore::{ForeignModule, LinkagePreference, NativeLib};
 use rustc_middle::middle::exported_symbols::{ExportedSymbol, SymbolExportLevel};
 use rustc_middle::mir::interpret::{AllocDecodingSession, AllocDecodingState};
 use rustc_middle::mir::{self, Body, Promoted};
@@ -30,6 +28,9 @@
 use rustc_middle::ty::codec::TyDecoder;
 use rustc_middle::ty::{self, Ty, TyCtxt, Visibility};
 use rustc_serialize::{opaque, Decodable, Decoder};
+use rustc_session::cstore::{
+    CrateSource, ExternCrate, ForeignModule, LinkagePreference, NativeLib,
+};
 use rustc_session::Session;
 use rustc_span::hygiene::{ExpnIndex, MacroKind};
 use rustc_span::source_map::{respan, Spanned};

compiler/rustc_metadata/src/rmeta/decoder/cstore_impl.rs

@@ -8,12 +8,11 @@
 use rustc_hir::def_id::{CrateNum, DefId, DefIdMap, CRATE_DEF_INDEX, LOCAL_CRATE};
 use rustc_hir::definitions::{DefKey, DefPath, DefPathHash};
 use rustc_middle::hir::exports::Export;
-use rustc_middle::middle::cstore::ForeignModule;
-use rustc_middle::middle::cstore::{CrateSource, CrateStore};
 use rustc_middle::middle::exported_symbols::ExportedSymbol;
 use rustc_middle::middle::stability::DeprecationEntry;
 use rustc_middle::ty::query::Providers;
 use rustc_middle::ty::{self, TyCtxt, Visibility};
+use rustc_session::cstore::{CrateSource, CrateStore, ForeignModule};
 use rustc_session::utils::NativeLibKind;
 use rustc_session::{Session, StableCrateId};
 use rustc_span::hygiene::{ExpnHash, ExpnId};

compiler/rustc_metadata/src/rmeta/encoder.rs

@@ -18,7 +18,6 @@
 use rustc_index::bit_set::GrowableBitSet;
 use rustc_index::vec::Idx;
 use rustc_middle::hir::map::Map;
-use rustc_middle::middle::cstore::{ForeignModule, LinkagePreference, NativeLib};
 use rustc_middle::middle::dependency_format::Linkage;
 use rustc_middle::middle::exported_symbols::{
     metadata_symbol_name, ExportedSymbol, SymbolExportLevel,
@@ -30,6 +29,7 @@
 use rustc_middle::ty::{self, SymbolName, Ty, TyCtxt};
 use rustc_serialize::{opaque, Encodable, Encoder};
 use rustc_session::config::CrateType;
+use rustc_session::cstore::{ForeignModule, LinkagePreference, NativeLib};
 use rustc_span::symbol::{sym, Ident, Symbol};
 use rustc_span::{self, ExternalSource, FileName, SourceFile, Span, SyntaxContext};
 use rustc_span::{

compiler/rustc_metadata/src/rmeta/mod.rs

@@ -13,13 +13,13 @@
 use rustc_hir::lang_items;
 use rustc_index::{bit_set::FiniteBitSet, vec::IndexVec};
 use rustc_middle::hir::exports::Export;
-use rustc_middle::middle::cstore::{CrateDepKind, ForeignModule, LinkagePreference, NativeLib};
 use rustc_middle::middle::exported_symbols::{ExportedSymbol, SymbolExportLevel};
 use rustc_middle::mir;
 use rustc_middle::thir;
 use rustc_middle::ty::{self, ReprOptions, Ty};
 use rustc_serialize::opaque::Encoder;
 use rustc_session::config::SymbolManglingVersion;
+use rustc_session::cstore::{CrateDepKind, ForeignModule, LinkagePreference, NativeLib};
 use rustc_span::edition::Edition;
 use rustc_span::hygiene::{ExpnIndex, MacroKind};
 use rustc_span::symbol::{Ident, Symbol};

compiler/rustc_middle/src/arena.rs

@@ -79,8 +79,8 @@ macro_rules! arena_types {
                 >,
             [few] all_traits: Vec<rustc_hir::def_id::DefId>,
             [few] privacy_access_levels: rustc_middle::middle::privacy::AccessLevels,
-            [few] foreign_module: rustc_middle::middle::cstore::ForeignModule,
-            [few] foreign_modules: Vec<rustc_middle::middle::cstore::ForeignModule>,
+            [few] foreign_module: rustc_session::cstore::ForeignModule,
+            [few] foreign_modules: Vec<rustc_session::cstore::ForeignModule>,
             [] upvars_mentioned: rustc_data_structures::fx::FxIndexMap<rustc_hir::HirId, rustc_hir::Upvar>,
             [] object_safety_violations: rustc_middle::traits::ObjectSafetyViolation,
             [] codegen_unit: rustc_middle::mir::mono::CodegenUnit<$tcx>,

compiler/rustc_middle/src/ich/hcx.rs

@@ -1,7 +1,5 @@
 use crate::ich;
-use crate::middle::cstore::CrateStore;
 use crate::ty::TyCtxt;
-
 use rustc_ast as ast;
 use rustc_data_structures::fx::FxHashSet;
 use rustc_data_structures::stable_hasher::{HashStable, StableHasher};
@@ -9,6 +7,7 @@
 use rustc_hir as hir;
 use rustc_hir::def_id::{DefId, LocalDefId};
 use rustc_hir::definitions::{DefPathHash, Definitions};
+use rustc_session::cstore::CrateStore;
 use rustc_session::Session;
 use rustc_span::source_map::SourceMap;
 use rustc_span::symbol::Symbol;

compiler/rustc_middle/src/middle/mod.rs

@@ -1,5 +1,4 @@
 pub mod codegen_fn_attrs;
-pub mod cstore;
 pub mod dependency_format;
 pub mod exported_symbols;
 pub mod lang_items;

compiler/rustc_middle/src/ty/mod.rs

@@ -21,7 +21,6 @@
 
 use crate::hir::exports::ExportMap;
 use crate::ich::StableHashingContext;
-use crate::middle::cstore::CrateStoreDyn;
 use crate::mir::{Body, GeneratorLayout};
 use crate::traits::{self, Reveal};
 use crate::ty;
@@ -37,6 +36,7 @@
 use rustc_hir::def_id::{CrateNum, DefId, LocalDefId, LocalDefIdMap, CRATE_DEF_INDEX};
 use rustc_hir::Node;
 use rustc_macros::HashStable;
+use rustc_session::cstore::CrateStoreDyn;
 use rustc_span::symbol::{kw, Ident, Symbol};
 use rustc_span::Span;
 use rustc_target::abi::Align;

compiler/rustc_middle/src/ty/print/pretty.rs

@@ -1,4 +1,3 @@
-use crate::middle::cstore::{ExternCrate, ExternCrateSource};
 use crate::mir::interpret::{AllocRange, ConstValue, GlobalAlloc, Pointer, Provenance, Scalar};
 use crate::ty::subst::{GenericArg, GenericArgKind, Subst};
 use crate::ty::{self, ConstInt, DefIdTree, ParamConst, ScalarInt, Ty, TyCtxt, TypeFoldable};
@@ -11,6 +10,7 @@
 use rustc_hir::definitions::{DefPathData, DefPathDataName, DisambiguatedDefPathData};
 use rustc_hir::ItemKind;
 use rustc_session::config::TrimmedDefPaths;
+use rustc_session::cstore::{ExternCrate, ExternCrateSource};
 use rustc_span::symbol::{kw, Ident, Symbol};
 use rustc_target::abi::Size;
 use rustc_target::spec::abi::Abi;

compiler/rustc_middle/src/ty/query.rs

@@ -3,8 +3,6 @@
 use crate::infer::canonical::{self, Canonical};
 use crate::lint::LintLevelMap;
 use crate::middle::codegen_fn_attrs::CodegenFnAttrs;
-use crate::middle::cstore::{CrateDepKind, CrateSource};
-use crate::middle::cstore::{ExternCrate, ForeignModule, LinkagePreference, NativeLib};
 use crate::middle::exported_symbols::{ExportedSymbol, SymbolExportLevel};
 use crate::middle::lib_features::LibFeatures;
 use crate::middle::privacy::AccessLevels;
@@ -46,6 +44,8 @@
 use rustc_hir::{Crate, ItemLocalId, TraitCandidate};
 use rustc_index::{bit_set::FiniteBitSet, vec::IndexVec};
 use rustc_session::config::{EntryFnType, OptLevel, OutputFilenames, SymbolManglingVersion};
+use rustc_session::cstore::{CrateDepKind, CrateSource};
+use rustc_session::cstore::{ExternCrate, ForeignModule, LinkagePreference, NativeLib};
 use rustc_session::utils::NativeLibKind;
 use rustc_session::Limits;
 use rustc_target::abi;

compiler/rustc_passes/src/lang_items.rs

@@ -10,9 +10,6 @@
 use crate::check_attr::target_from_impl_item;
 use crate::weak_lang_items;
 
-use rustc_middle::middle::cstore::ExternCrate;
-use rustc_middle::ty::TyCtxt;
-
 use rustc_ast::Attribute;
 use rustc_errors::{pluralize, struct_span_err};
 use rustc_hir as hir;
@@ -20,6 +17,8 @@
 use rustc_hir::itemlikevisit::ItemLikeVisitor;
 use rustc_hir::lang_items::{extract, GenericRequirement, ITEM_REFS};
 use rustc_hir::{HirId, LangItem, LanguageItems, Target};
+use rustc_middle::ty::TyCtxt;
+use rustc_session::cstore::ExternCrate;
 use rustc_span::Span;
 
 use rustc_middle::ty::query::Providers;

compiler/rustc_plugin_impl/src/load.rs

@@ -4,7 +4,7 @@
 use rustc_ast::Crate;
 use rustc_errors::struct_span_err;
 use rustc_metadata::locator;
-use rustc_middle::middle::cstore::MetadataLoader;
+use rustc_session::cstore::MetadataLoader;
 use rustc_session::Session;
 use rustc_span::symbol::{sym, Ident};
 use rustc_span::Span;

compiler/rustc_resolve/src/build_reduced_graph.rs

@@ -27,8 +27,8 @@
 use rustc_metadata::creader::LoadedMacro;
 use rustc_middle::bug;
 use rustc_middle::hir::exports::Export;
-use rustc_middle::middle::cstore::CrateStore;
 use rustc_middle::ty;
+use rustc_session::cstore::CrateStore;
 use rustc_span::hygiene::{ExpnId, LocalExpnId, MacroKind};
 use rustc_span::source_map::{respan, Spanned};
 use rustc_span::symbol::{kw, sym, Ident, Symbol};

compiler/rustc_resolve/src/lib.rs

@@ -51,10 +51,10 @@
 use rustc_index::vec::IndexVec;
 use rustc_metadata::creader::{CStore, CrateLoader};
 use rustc_middle::hir::exports::ExportMap;
-use rustc_middle::middle::cstore::{CrateStore, MetadataLoaderDyn};
 use rustc_middle::span_bug;
 use rustc_middle::ty::query::Providers;
 use rustc_middle::ty::{self, DefIdTree, MainDefinition, ResolverOutputs};
+use rustc_session::cstore::{CrateStore, MetadataLoaderDyn};
 use rustc_session::lint;
 use rustc_session::lint::{BuiltinLintDiagnostics, LintBuffer};
 use rustc_session::Session;

compiler/rustc_save_analysis/src/lib.rs

@@ -19,11 +19,11 @@
 use rustc_hir::Node;
 use rustc_hir_pretty::{enum_def_to_string, fn_to_string, ty_to_string};
 use rustc_middle::hir::map::Map;
-use rustc_middle::middle::cstore::ExternCrate;
 use rustc_middle::middle::privacy::AccessLevels;
 use rustc_middle::ty::{self, print::with_no_trimmed_paths, DefIdTree, TyCtxt};
 use rustc_middle::{bug, span_bug};
 use rustc_session::config::{CrateType, Input, OutputType};
+use rustc_session::cstore::ExternCrate;
 use rustc_session::output::{filename_for_metadata, out_filename};
 use rustc_span::source_map::Spanned;
 use rustc_span::symbol::Ident;

compiler/rustc_session/Cargo.toml

@@ -9,6 +9,7 @@ rustc_macros = { path = "../rustc_macros" }
 tracing = "0.1"
 rustc_errors = { path = "../rustc_errors" }
 rustc_feature = { path = "../rustc_feature" }
+rustc_hir = { path = "../rustc_hir" }
 rustc_target = { path = "../rustc_target" }
 rustc_serialize = { path = "../rustc_serialize" }
 rustc_data_structures = { path = "../rustc_data_structures" }

compiler/rustc_session/src/cstore.rs

@@ -2,13 +2,12 @@
 //! are *mostly* used as a part of that interface, but these should
 //! probably get a better home if someone can find one.
 
+use crate::search_paths::PathKind;
+use crate::utils::NativeLibKind;
 use rustc_ast as ast;
 use rustc_data_structures::sync::{self, MetadataRef};
 use rustc_hir::def_id::{CrateNum, DefId, StableCrateId, LOCAL_CRATE};
 use rustc_hir::definitions::{DefKey, DefPath, DefPathHash};
-use rustc_macros::HashStable;
-use rustc_session::search_paths::PathKind;
-use rustc_session::utils::NativeLibKind;
 use rustc_span::hygiene::{ExpnHash, ExpnId};
 use rustc_span::symbol::Symbol;
 use rustc_span::Span;
@@ -21,7 +20,7 @@
 
 /// Where a crate came from on the local filesystem. One of these three options
 /// must be non-None.
-#[derive(PartialEq, Clone, Debug, HashStable, Encodable, Decodable)]
+#[derive(PartialEq, Clone, Debug, HashStable_Generic, Encodable, Decodable)]
 pub struct CrateSource {
     pub dylib: Option<(PathBuf, PathKind)>,
     pub rlib: Option<(PathBuf, PathKind)>,
@@ -35,7 +34,7 @@ pub fn paths(&self) -> impl Iterator<Item = &PathBuf> {
 }
 
 #[derive(Encodable, Decodable, Copy, Clone, Ord, PartialOrd, Eq, PartialEq, Debug)]
-#[derive(HashStable)]
+#[derive(HashStable_Generic)]
 pub enum CrateDepKind {
     /// A dependency that is only used for its macros.
     MacrosOnly,
@@ -56,13 +55,13 @@ pub fn macros_only(self) -> bool {
     }
 }
 
-#[derive(Copy, Debug, PartialEq, Clone, Encodable, Decodable, HashStable)]
+#[derive(Copy, Debug, PartialEq, Clone, Encodable, Decodable, HashStable_Generic)]
 pub enum LinkagePreference {
     RequireDynamic,
     RequireStatic,
 }
 
-#[derive(Debug, Encodable, Decodable, HashStable)]
+#[derive(Debug, Encodable, Decodable, HashStable_Generic)]
 pub struct NativeLib {
     pub kind: NativeLibKind,
     pub name: Option<Symbol>,
@@ -73,7 +72,7 @@ pub struct NativeLib {
     pub dll_imports: Vec<DllImport>,
 }
 
-#[derive(Clone, Debug, Encodable, Decodable, HashStable)]
+#[derive(Clone, Debug, Encodable, Decodable, HashStable_Generic)]
 pub struct DllImport {
     pub name: Symbol,
     pub ordinal: Option<u16>,
@@ -90,7 +89,7 @@ pub struct DllImport {
 ///
 /// The usize value, where present, indicates the size of the function's argument list
 /// in bytes.
-#[derive(Clone, PartialEq, Debug, Encodable, Decodable, HashStable)]
+#[derive(Clone, PartialEq, Debug, Encodable, Decodable, HashStable_Generic)]
 pub enum DllCallingConvention {
     C,
     Stdcall(usize),
@@ -98,13 +97,13 @@ pub enum DllCallingConvention {
     Vectorcall(usize),
 }
 
-#[derive(Clone, TyEncodable, TyDecodable, HashStable, Debug)]
+#[derive(Clone, Encodable, Decodable, HashStable_Generic, Debug)]
 pub struct ForeignModule {
     pub foreign_items: Vec<DefId>,
     pub def_id: DefId,
 }
 
-#[derive(Copy, Clone, Debug, HashStable)]
+#[derive(Copy, Clone, Debug, HashStable_Generic)]
 pub struct ExternCrate {
     pub src: ExternCrateSource,
 
@@ -135,7 +134,7 @@ pub fn rank(&self) -> impl PartialOrd {
     }
 }
 
-#[derive(Copy, Clone, Debug, HashStable)]
+#[derive(Copy, Clone, Debug, HashStable_Generic)]
 pub enum ExternCrateSource {
     /// Crate is loaded by `extern crate`.
     Extern(

compiler/rustc_session/src/lib.rs

@@ -14,6 +14,7 @@
 mod code_stats;
 #[macro_use]
 pub mod config;
+pub mod cstore;
 pub mod filesearch;
 mod options;
 pub mod search_paths;
@@ -28,4 +29,4 @@
 /// Requirements for a `StableHashingContext` to be used in this crate.
 /// This is a hack to allow using the `HashStable_Generic` derive macro
 /// instead of implementing everything in `rustc_middle`.
-pub trait HashStableContext {}
+pub trait HashStableContext: rustc_ast::HashStableContext + rustc_hir::HashStableContext {}