rustc: Move crate_types and stable_crate_id from Session to GlobalCtxt

compiler/rustc_ast_lowering/src/lib.rs

@@ -457,7 +457,7 @@ pub fn lower_to_hir(tcx: TyCtxt<'_>, (): ()) -> hir::Crate<'_> {
 
     // Don't hash unless necessary, because it's expensive.
     let opt_hir_hash =
-        if tcx.sess.needs_crate_hash() { Some(compute_hir_hash(tcx, &owners)) } else { None };
+        if tcx.needs_crate_hash() { Some(compute_hir_hash(tcx, &owners)) } else { None };
     hir::Crate { owners, opt_hir_hash }
 }
 
@@ -648,7 +648,7 @@ impl<'a, 'hir> LoweringContext<'a, 'hir> {
         let bodies = SortedMap::from_presorted_elements(bodies);
 
         // Don't hash unless necessary, because it's expensive.
-        let (opt_hash_including_bodies, attrs_hash) = if self.tcx.sess.needs_crate_hash() {
+        let (opt_hash_including_bodies, attrs_hash) = if self.tcx.needs_crate_hash() {
             self.tcx.with_stable_hashing_context(|mut hcx| {
                 let mut stable_hasher = StableHasher::new();
                 hcx.with_hir_bodies(node.def_id(), &bodies, |hcx| {

compiler/rustc_codegen_cranelift/src/driver/jit.rs

@@ -98,7 +98,7 @@ pub(crate) fn run_jit(tcx: TyCtxt<'_>, backend_config: BackendConfig) -> ! {
         tcx.sess.fatal("JIT mode doesn't work with `cargo check`");
     }
 
-    if !tcx.sess.crate_types().contains(&rustc_session::config::CrateType::Executable) {
+    if !tcx.crate_types().contains(&rustc_session::config::CrateType::Executable) {
         tcx.sess.fatal("can't jit non-executable crate");
     }
 

compiler/rustc_codegen_llvm/src/context.rs

@@ -209,7 +209,7 @@ pub unsafe fn create_module<'ll>(
         // PIE is potentially more effective than PIC, but can only be used in executables.
         // If all our outputs are executables, then we can relax PIC to PIE.
         if reloc_model == RelocModel::Pie
-            || sess.crate_types().iter().all(|ty| *ty == CrateType::Executable)
+            || tcx.crate_types().iter().all(|ty| *ty == CrateType::Executable)
         {
             llvm::LLVMRustSetModulePIELevel(llmod);
         }

compiler/rustc_codegen_llvm/src/debuginfo/gdb.rs

@@ -92,7 +92,7 @@ pub fn needs_gdb_debug_scripts_section(cx: &CodegenCx<'_, '_>) -> bool {
     // each rlib could produce a different set of visualizers that would be embedded
     // in the `.debug_gdb_scripts` section. For that reason, we make sure that the
     // section is only emitted for leaf crates.
-    let embed_visualizers = cx.sess().crate_types().iter().any(|&crate_type| match crate_type {
+    let embed_visualizers = cx.tcx.crate_types().iter().any(|&crate_type| match crate_type {
         CrateType::Executable | CrateType::Dylib | CrateType::Cdylib | CrateType::Staticlib => {
             // These are crate types for which we will embed pretty printers since they
             // are treated as leaf crates.

compiler/rustc_codegen_llvm/src/mono_item.rs

@@ -111,7 +111,7 @@ impl CodegenCx<'_, '_> {
         }
 
         // Symbols from executables can't really be imported any further.
-        let all_exe = self.tcx.sess.crate_types().iter().all(|ty| *ty == CrateType::Executable);
+        let all_exe = self.tcx.crate_types().iter().all(|ty| *ty == CrateType::Executable);
         let is_declaration_for_linker =
             is_declaration || linkage == llvm::Linkage::AvailableExternallyLinkage;
         if all_exe && !is_declaration_for_linker {

compiler/rustc_codegen_ssa/src/back/link.rs

@@ -69,7 +69,7 @@ pub fn link_binary<'a>(
     let _timer = sess.timer("link_binary");
     let output_metadata = sess.opts.output_types.contains_key(&OutputType::Metadata);
     let mut tempfiles_for_stdout_output: Vec<PathBuf> = Vec::new();
-    for &crate_type in sess.crate_types().iter() {
+    for &crate_type in &codegen_results.crate_info.crate_types {
         // Ignore executable crates if we have -Z no-codegen, as they will error.
         if (sess.opts.unstable_opts.no_codegen || !sess.opts.output_types.should_codegen())
             && !output_metadata

compiler/rustc_codegen_ssa/src/back/linker.rs

@@ -1703,7 +1703,7 @@ fn exported_symbols_for_proc_macro_crate(tcx: TyCtxt<'_>) -> Vec<String> {
         return Vec::new();
     }
 
-    let stable_crate_id = tcx.sess.local_stable_crate_id();
+    let stable_crate_id = tcx.stable_crate_id(LOCAL_CRATE);
     let proc_macro_decls_name = tcx.sess.generate_proc_macro_decls_symbol(stable_crate_id);
     let metadata_symbol_name = exported_symbols::metadata_symbol_name(tcx);
 

compiler/rustc_codegen_ssa/src/back/symbol_export.rs

@@ -19,7 +19,7 @@ use rustc_session::config::{CrateType, OomStrategy};
 use rustc_target::spec::SanitizerSet;
 
 pub fn threshold(tcx: TyCtxt<'_>) -> SymbolExportLevel {
-    crates_export_threshold(&tcx.sess.crate_types())
+    crates_export_threshold(tcx.crate_types())
 }
 
 fn crate_export_threshold(crate_type: CrateType) -> SymbolExportLevel {
@@ -290,8 +290,8 @@ fn exported_symbols_provider_local(
         }));
     }
 
-    if tcx.sess.crate_types().contains(&CrateType::Dylib)
-        || tcx.sess.crate_types().contains(&CrateType::ProcMacro)
+    if tcx.crate_types().contains(&CrateType::Dylib)
+        || tcx.crate_types().contains(&CrateType::ProcMacro)
     {
         let symbol_name = metadata_symbol_name(tcx);
         let exported_symbol = ExportedSymbol::NoDefId(SymbolName::new(tcx, &symbol_name));

compiler/rustc_codegen_ssa/src/back/write.rs

@@ -123,7 +123,7 @@ pub struct ModuleConfig {
 impl ModuleConfig {
     fn new(
         kind: ModuleKind,
-        sess: &Session,
+        tcx: TyCtxt<'_>,
         no_builtins: bool,
         is_compiler_builtins: bool,
     ) -> ModuleConfig {
@@ -135,6 +135,7 @@ impl ModuleConfig {
             };
         }
 
+        let sess = tcx.sess;
         let opt_level_and_size = if_regular!(Some(sess.opts.optimize), None);
 
         let save_temps = sess.opts.cg.save_temps;
@@ -166,7 +167,7 @@ impl ModuleConfig {
             // `#![no_builtins]` is assumed to not participate in LTO and
             // instead goes on to generate object code.
             EmitObj::Bitcode
-        } else if need_bitcode_in_object(sess) {
+        } else if need_bitcode_in_object(tcx) {
             EmitObj::ObjectCode(BitcodeSection::Full)
         } else {
             EmitObj::ObjectCode(BitcodeSection::None)
@@ -414,9 +415,10 @@ pub struct CompiledModules {
     pub allocator_module: Option<CompiledModule>,
 }
 
-fn need_bitcode_in_object(sess: &Session) -> bool {
+fn need_bitcode_in_object(tcx: TyCtxt<'_>) -> bool {
+    let sess = tcx.sess;
     let requested_for_rlib = sess.opts.cg.embed_bitcode
-        && sess.crate_types().contains(&CrateType::Rlib)
+        && tcx.crate_types().contains(&CrateType::Rlib)
         && sess.opts.output_types.contains_key(&OutputType::Exe);
     let forced_by_target = sess.target.forces_embed_bitcode;
     requested_for_rlib || forced_by_target
@@ -450,11 +452,11 @@ pub fn start_async_codegen<B: ExtraBackendMethods>(
     let crate_info = CrateInfo::new(tcx, target_cpu);
 
     let regular_config =
-        ModuleConfig::new(ModuleKind::Regular, sess, no_builtins, is_compiler_builtins);
+        ModuleConfig::new(ModuleKind::Regular, tcx, no_builtins, is_compiler_builtins);
     let metadata_config =
-        ModuleConfig::new(ModuleKind::Metadata, sess, no_builtins, is_compiler_builtins);
+        ModuleConfig::new(ModuleKind::Metadata, tcx, no_builtins, is_compiler_builtins);
     let allocator_config =
-        ModuleConfig::new(ModuleKind::Allocator, sess, no_builtins, is_compiler_builtins);
+        ModuleConfig::new(ModuleKind::Allocator, tcx, no_builtins, is_compiler_builtins);
 
     let (shared_emitter, shared_emitter_main) = SharedEmitter::new();
     let (codegen_worker_send, codegen_worker_receive) = channel();
@@ -1092,7 +1094,7 @@ fn start_executing_work<B: ExtraBackendMethods>(
     };
 
     let cgcx = CodegenContext::<B> {
-        crate_types: sess.crate_types().to_vec(),
+        crate_types: tcx.crate_types().to_vec(),
         each_linked_rlib_for_lto,
         lto: sess.lto(),
         fewer_names: sess.fewer_names(),
@@ -2063,7 +2065,7 @@ fn msvc_imps_needed(tcx: TyCtxt<'_>) -> bool {
     );
 
     tcx.sess.target.is_like_windows &&
-        tcx.sess.crate_types().iter().any(|ct| *ct == CrateType::Rlib) &&
+        tcx.crate_types().iter().any(|ct| *ct == CrateType::Rlib) &&
     // ThinLTO can't handle this workaround in all cases, so we don't
     // emit the `__imp_` symbols. Instead we make them unnecessary by disallowing
     // dynamic linking when linker plugin LTO is enabled.

compiler/rustc_codegen_ssa/src/base.rs

@@ -779,18 +779,13 @@ pub fn codegen_crate<B: ExtraBackendMethods>(
 
 impl CrateInfo {
     pub fn new(tcx: TyCtxt<'_>, target_cpu: String) -> CrateInfo {
-        let exported_symbols = tcx
-            .sess
-            .crate_types()
+        let crate_types = tcx.crate_types().to_vec();
+        let exported_symbols = crate_types
             .iter()
             .map(|&c| (c, crate::back::linker::exported_symbols(tcx, c)))
             .collect();
-        let linked_symbols = tcx
-            .sess
-            .crate_types()
-            .iter()
-            .map(|&c| (c, crate::back::linker::linked_symbols(tcx, c)))
-            .collect();
+        let linked_symbols =
+            crate_types.iter().map(|&c| (c, crate::back::linker::linked_symbols(tcx, c))).collect();
         let local_crate_name = tcx.crate_name(LOCAL_CRATE);
         let crate_attrs = tcx.hir().attrs(rustc_hir::CRATE_HIR_ID);
         let subsystem = attr::first_attr_value_str_by_name(crate_attrs, sym::windows_subsystem);
@@ -829,6 +824,7 @@ impl CrateInfo {
 
         let mut info = CrateInfo {
             target_cpu,
+            crate_types,
             exported_symbols,
             linked_symbols,
             local_crate_name,
@@ -916,7 +912,7 @@ impl CrateInfo {
                 });
         }
 
-        let embed_visualizers = tcx.sess.crate_types().iter().any(|&crate_type| match crate_type {
+        let embed_visualizers = tcx.crate_types().iter().any(|&crate_type| match crate_type {
             CrateType::Executable | CrateType::Dylib | CrateType::Cdylib => {
                 // These are crate types for which we invoke the linker and can embed
                 // NatVis visualizers.
@@ -1013,7 +1009,7 @@ fn determine_cgu_reuse<'tcx>(tcx: TyCtxt<'tcx>, cgu: &CodegenUnit<'tcx>) -> CguR
         match compute_per_cgu_lto_type(
             &tcx.sess.lto(),
             &tcx.sess.opts,
-            &tcx.sess.crate_types(),
+            tcx.crate_types(),
             ModuleKind::Regular,
         ) {
             ComputedLtoType::No => CguReuse::PostLto,

compiler/rustc_codegen_ssa/src/lib.rs

@@ -150,6 +150,7 @@ impl From<&cstore::NativeLib> for NativeLib {
 #[derive(Debug, Encodable, Decodable)]
 pub struct CrateInfo {
     pub target_cpu: String,
+    pub crate_types: Vec<CrateType>,
     pub exported_symbols: FxHashMap<CrateType, Vec<String>>,
     pub linked_symbols: FxHashMap<CrateType, Vec<(String, SymbolExportKind)>>,
     pub local_crate_name: Symbol,

compiler/rustc_driver_impl/src/lib.rs

@@ -653,8 +653,6 @@ fn show_md_content_with_pager(content: &str, color: ColorConfig) {
 pub fn try_process_rlink(sess: &Session, compiler: &interface::Compiler) -> Compilation {
     if sess.opts.unstable_opts.link_only {
         if let Input::File(file) = &sess.io.input {
-            // FIXME: #![crate_type] and #![crate_name] support not implemented yet
-            sess.init_crate_types(collect_crate_types(sess, &[]));
             let outputs = compiler.build_output_filenames(sess, &[]);
             let rlink_data = fs::read(file).unwrap_or_else(|err| {
                 sess.emit_fatal(RlinkUnableToRead { err });

compiler/rustc_interface/src/passes.rs

@@ -12,7 +12,7 @@ use rustc_data_structures::sync::{Lrc, OnceCell, WorkerLocal};
 use rustc_errors::PResult;
 use rustc_expand::base::{ExtCtxt, LintStoreExpand};
 use rustc_fs_util::try_canonicalize;
-use rustc_hir::def_id::LOCAL_CRATE;
+use rustc_hir::def_id::{StableCrateId, LOCAL_CRATE};
 use rustc_lint::{unerased_lint_store, BufferedEarlyLint, EarlyCheckNode, LintStore};
 use rustc_metadata::creader::CStore;
 use rustc_middle::arena::Arena;
@@ -248,7 +248,7 @@ fn configure_and_expand(
         rustc_ast_passes::ast_validation::check_crate(sess, &krate, resolver.lint_buffer())
     });
 
-    let crate_types = sess.crate_types();
+    let crate_types = tcx.crate_types();
     let is_executable_crate = crate_types.contains(&CrateType::Executable);
     let is_proc_macro_crate = crate_types.contains(&CrateType::ProcMacro);
 
@@ -340,11 +340,12 @@ fn early_lint_checks(tcx: TyCtxt<'_>, (): ()) {
 
 // Returns all the paths that correspond to generated files.
 fn generated_output_paths(
-    sess: &Session,
+    tcx: TyCtxt<'_>,
     outputs: &OutputFilenames,
     exact_name: bool,
     crate_name: Symbol,
 ) -> Vec<PathBuf> {
+    let sess = tcx.sess;
     let mut out_filenames = Vec::new();
     for output_type in sess.opts.output_types.keys() {
         let out_filename = outputs.path(*output_type);
@@ -353,7 +354,7 @@ fn generated_output_paths(
             // If the filename has been overridden using `-o`, it will not be modified
             // by appending `.rlib`, `.exe`, etc., so we can skip this transformation.
             OutputType::Exe if !exact_name => {
-                for crate_type in sess.crate_types().iter() {
+                for crate_type in tcx.crate_types().iter() {
                     let p = filename_for_input(sess, *crate_type, crate_name, outputs);
                     out_filenames.push(p.as_path().to_path_buf());
                 }
@@ -586,7 +587,7 @@ fn output_filenames(tcx: TyCtxt<'_>, (): ()) -> Arc<OutputFilenames> {
     let outputs = util::build_output_filenames(&krate.attrs, sess);
 
     let output_paths =
-        generated_output_paths(sess, &outputs, sess.io.output_file.is_some(), crate_name);
+        generated_output_paths(tcx, &outputs, sess.io.output_file.is_some(), crate_name);
 
     // Ensure the source file isn't accidentally overwritten during compilation.
     if let Some(ref input_path) = sess.io.input.opt_path() {
@@ -664,6 +665,8 @@ pub static DEFAULT_EXTERN_QUERY_PROVIDERS: LazyLock<ExternProviders> = LazyLock:
 
 pub fn create_global_ctxt<'tcx>(
     compiler: &'tcx Compiler,
+    crate_types: Vec<CrateType>,
+    stable_crate_id: StableCrateId,
     lint_store: Lrc<LintStore>,
     dep_graph: DepGraph,
     untracked: Untracked,
@@ -696,6 +699,8 @@ pub fn create_global_ctxt<'tcx>(
         gcx_cell.get_or_init(move || {
             TyCtxt::create_global_ctxt(
                 sess,
+                crate_types,
+                stable_crate_id,
                 lint_store,
                 arena,
                 hir_arena,

compiler/rustc_interface/src/queries.rs

@@ -234,13 +234,13 @@ impl<'tcx> Queries<'tcx> {
             debug_assert_eq!(_id, CRATE_DEF_ID);
             let untracked = Untracked { cstore, source_span, definitions };
 
-            // FIXME: Move these fields from session to tcx and make them immutable.
-            sess.init_crate_types(crate_types);
-            sess.stable_crate_id.set(stable_crate_id).expect("not yet initialized");
+            // FIXME: Move features from session to tcx and make them immutable.
             sess.init_features(rustc_expand::config::features(sess, &pre_configured_attrs));
 
             let qcx = passes::create_global_ctxt(
                 self.compiler,
+                crate_types,
+                stable_crate_id,
                 lint_store,
                 self.dep_graph(dep_graph_future),
                 untracked,
@@ -320,7 +320,7 @@ impl<'tcx> Queries<'tcx> {
 
         let (crate_hash, prepare_outputs, dep_graph) = self.global_ctxt()?.enter(|tcx| {
             (
-                if tcx.sess.needs_crate_hash() { Some(tcx.crate_hash(LOCAL_CRATE)) } else { None },
+                if tcx.needs_crate_hash() { Some(tcx.crate_hash(LOCAL_CRATE)) } else { None },
                 tcx.output_filenames(()).clone(),
                 tcx.dep_graph.clone(),
             )

compiler/rustc_metadata/src/creader.rs

@@ -545,7 +545,7 @@ impl<'a, 'tcx> CrateLoader<'a, 'tcx> {
                 name,
                 // The all loop is because `--crate-type=rlib --crate-type=rlib` is
                 // legal and produces both inside this type.
-                self.sess.crate_types().iter().all(|c| *c == CrateType::Rlib),
+                self.tcx.crate_types().iter().all(|c| *c == CrateType::Rlib),
                 hash,
                 extra_filename,
                 false, // is_host
@@ -689,7 +689,7 @@ impl<'a, 'tcx> CrateLoader<'a, 'tcx> {
     fn inject_panic_runtime(&mut self, krate: &ast::Crate) {
         // If we're only compiling an rlib, then there's no need to select a
         // panic runtime, so we just skip this section entirely.
-        let any_non_rlib = self.sess.crate_types().iter().any(|ct| *ct != CrateType::Rlib);
+        let any_non_rlib = self.tcx.crate_types().iter().any(|ct| *ct != CrateType::Rlib);
         if !any_non_rlib {
             info!("panic runtime injection skipped, only generating rlib");
             return;
@@ -818,7 +818,7 @@ impl<'a, 'tcx> CrateLoader<'a, 'tcx> {
         // At this point we've determined that we need an allocator. Let's see
         // if our compilation session actually needs an allocator based on what
         // we're emitting.
-        let all_rlib = self.sess.crate_types().iter().all(|ct| matches!(*ct, CrateType::Rlib));
+        let all_rlib = self.tcx.crate_types().iter().all(|ct| matches!(*ct, CrateType::Rlib));
         if all_rlib {
             return;
         }

compiler/rustc_metadata/src/dependency_format.rs

@@ -66,8 +66,7 @@ use rustc_session::cstore::CrateDepKind;
 use rustc_session::cstore::LinkagePreference::{self, RequireDynamic, RequireStatic};
 
 pub(crate) fn calculate(tcx: TyCtxt<'_>) -> Dependencies {
-    tcx.sess
-        .crate_types()
+    tcx.crate_types()
         .iter()
         .map(|&ty| {
             let linkage = calculate_type(tcx, ty);

compiler/rustc_metadata/src/fs.rs

@@ -56,7 +56,7 @@ pub fn encode_and_write_metadata(tcx: TyCtxt<'_>) -> (EncodedMetadata, bool) {
 
     // Always create a file at `metadata_filename`, even if we have nothing to write to it.
     // This simplifies the creation of the output `out_filename` when requested.
-    let metadata_kind = tcx.sess.metadata_kind();
+    let metadata_kind = tcx.metadata_kind();
     match metadata_kind {
         MetadataKind::None => {
             std::fs::File::create(&metadata_filename).unwrap_or_else(|err| {