diff options
Diffstat (limited to 'compiler/rustc_metadata/src/rmeta/decoder/cstore_impl.rs')
| -rw-r--r-- | compiler/rustc_metadata/src/rmeta/decoder/cstore_impl.rs | 680 |
1 files changed, 680 insertions, 0 deletions
diff --git a/compiler/rustc_metadata/src/rmeta/decoder/cstore_impl.rs b/compiler/rustc_metadata/src/rmeta/decoder/cstore_impl.rs new file mode 100644 index 000000000..38ce50e83 --- /dev/null +++ b/compiler/rustc_metadata/src/rmeta/decoder/cstore_impl.rs @@ -0,0 +1,680 @@ +use crate::creader::{CStore, LoadedMacro}; +use crate::foreign_modules; +use crate::native_libs; + +use rustc_ast as ast; +use rustc_attr::Deprecation; +use rustc_hir::def::{CtorKind, DefKind, Res}; +use rustc_hir::def_id::{CrateNum, DefId, DefIdMap, LOCAL_CRATE}; +use rustc_hir::definitions::{DefKey, DefPath, DefPathHash}; +use rustc_middle::arena::ArenaAllocatable; +use rustc_middle::metadata::ModChild; +use rustc_middle::middle::exported_symbols::ExportedSymbol; +use rustc_middle::middle::stability::DeprecationEntry; +use rustc_middle::ty::fast_reject::SimplifiedType; +use rustc_middle::ty::query::{ExternProviders, Providers}; +use rustc_middle::ty::{self, TyCtxt, Visibility}; +use rustc_session::cstore::{CrateSource, CrateStore}; +use rustc_session::utils::NativeLibKind; +use rustc_session::{Session, StableCrateId}; +use rustc_span::hygiene::{ExpnHash, ExpnId}; +use rustc_span::source_map::{Span, Spanned}; +use rustc_span::symbol::{kw, Symbol}; + +use rustc_data_structures::sync::Lrc; +use smallvec::SmallVec; +use std::any::Any; + +use super::{Decodable, DecodeContext, DecodeIterator}; + +trait ProcessQueryValue<'tcx, T> { + fn process_decoded(self, _tcx: TyCtxt<'tcx>, _err: impl Fn() -> !) -> T; +} + +impl<T> ProcessQueryValue<'_, Option<T>> for Option<T> { + #[inline(always)] + fn process_decoded(self, _tcx: TyCtxt<'_>, _err: impl Fn() -> !) -> Option<T> { + self + } +} + +impl<T> ProcessQueryValue<'_, T> for Option<T> { + #[inline(always)] + fn process_decoded(self, _tcx: TyCtxt<'_>, err: impl Fn() -> !) -> T { + if let Some(value) = self { value } else { err() } + } +} + +impl<'tcx, T: ArenaAllocatable<'tcx>> ProcessQueryValue<'tcx, &'tcx T> for Option<T> { + #[inline(always)] + fn process_decoded(self, tcx: TyCtxt<'tcx>, err: impl Fn() -> !) -> &'tcx T { + if let Some(value) = self { tcx.arena.alloc(value) } else { err() } + } +} + +impl<T, E> ProcessQueryValue<'_, Result<Option<T>, E>> for Option<T> { + #[inline(always)] + fn process_decoded(self, _tcx: TyCtxt<'_>, _err: impl Fn() -> !) -> Result<Option<T>, E> { + Ok(self) + } +} + +impl<'a, 'tcx, T: Copy + Decodable<DecodeContext<'a, 'tcx>>> ProcessQueryValue<'tcx, &'tcx [T]> + for Option<DecodeIterator<'a, 'tcx, T>> +{ + #[inline(always)] + fn process_decoded(self, tcx: TyCtxt<'tcx>, _err: impl Fn() -> !) -> &'tcx [T] { + if let Some(iter) = self { tcx.arena.alloc_from_iter(iter) } else { &[] } + } +} + +impl ProcessQueryValue<'_, Option<DeprecationEntry>> for Option<Deprecation> { + #[inline(always)] + fn process_decoded(self, _tcx: TyCtxt<'_>, _err: impl Fn() -> !) -> Option<DeprecationEntry> { + self.map(DeprecationEntry::external) + } +} + +macro_rules! provide_one { + (<$lt:tt> $tcx:ident, $def_id:ident, $other:ident, $cdata:ident, $name:ident => { table }) => { + provide_one! { + <$lt> $tcx, $def_id, $other, $cdata, $name => { + $cdata + .root + .tables + .$name + .get($cdata, $def_id.index) + .map(|lazy| lazy.decode(($cdata, $tcx))) + .process_decoded($tcx, || panic!("{:?} does not have a {:?}", $def_id, stringify!($name))) + } + } + }; + (<$lt:tt> $tcx:ident, $def_id:ident, $other:ident, $cdata:ident, $name:ident => { table_direct }) => { + provide_one! { + <$lt> $tcx, $def_id, $other, $cdata, $name => { + // We don't decode `table_direct`, since it's not a Lazy, but an actual value + $cdata + .root + .tables + .$name + .get($cdata, $def_id.index) + .process_decoded($tcx, || panic!("{:?} does not have a {:?}", $def_id, stringify!($name))) + } + } + }; + (<$lt:tt> $tcx:ident, $def_id:ident, $other:ident, $cdata:ident, $name:ident => $compute:block) => { + fn $name<$lt>( + $tcx: TyCtxt<$lt>, + def_id_arg: ty::query::query_keys::$name<$lt>, + ) -> ty::query::query_values::$name<$lt> { + let _prof_timer = + $tcx.prof.generic_activity(concat!("metadata_decode_entry_", stringify!($name))); + + #[allow(unused_variables)] + let ($def_id, $other) = def_id_arg.into_args(); + assert!(!$def_id.is_local()); + + // External query providers call `crate_hash` in order to register a dependency + // on the crate metadata. The exception is `crate_hash` itself, which obviously + // doesn't need to do this (and can't, as it would cause a query cycle). + use rustc_middle::dep_graph::DepKind; + if DepKind::$name != DepKind::crate_hash && $tcx.dep_graph.is_fully_enabled() { + $tcx.ensure().crate_hash($def_id.krate); + } + + let $cdata = CStore::from_tcx($tcx).get_crate_data($def_id.krate); + + $compute + } + }; +} + +macro_rules! provide { + (<$lt:tt> $tcx:ident, $def_id:ident, $other:ident, $cdata:ident, + $($name:ident => { $($compute:tt)* })*) => { + pub fn provide_extern(providers: &mut ExternProviders) { + $(provide_one! { + <$lt> $tcx, $def_id, $other, $cdata, $name => { $($compute)* } + })* + + *providers = ExternProviders { + $($name,)* + ..*providers + }; + } + } +} + +// small trait to work around different signature queries all being defined via +// the macro above. +trait IntoArgs { + type Other; + fn into_args(self) -> (DefId, Self::Other); +} + +impl IntoArgs for DefId { + type Other = (); + fn into_args(self) -> (DefId, ()) { + (self, ()) + } +} + +impl IntoArgs for CrateNum { + type Other = (); + fn into_args(self) -> (DefId, ()) { + (self.as_def_id(), ()) + } +} + +impl IntoArgs for (CrateNum, DefId) { + type Other = DefId; + fn into_args(self) -> (DefId, DefId) { + (self.0.as_def_id(), self.1) + } +} + +impl<'tcx> IntoArgs for ty::InstanceDef<'tcx> { + type Other = (); + fn into_args(self) -> (DefId, ()) { + (self.def_id(), ()) + } +} + +impl IntoArgs for (CrateNum, SimplifiedType) { + type Other = SimplifiedType; + fn into_args(self) -> (DefId, SimplifiedType) { + (self.0.as_def_id(), self.1) + } +} + +provide! { <'tcx> tcx, def_id, other, cdata, + explicit_item_bounds => { table } + explicit_predicates_of => { table } + generics_of => { table } + inferred_outlives_of => { table } + super_predicates_of => { table } + type_of => { table } + variances_of => { table } + fn_sig => { table } + codegen_fn_attrs => { table } + impl_trait_ref => { table } + const_param_default => { table } + thir_abstract_const => { table } + optimized_mir => { table } + mir_for_ctfe => { table } + promoted_mir => { table } + def_span => { table } + def_ident_span => { table } + lookup_stability => { table } + lookup_const_stability => { table } + lookup_deprecation_entry => { table } + visibility => { table } + unused_generic_params => { table } + opt_def_kind => { table_direct } + impl_parent => { table } + impl_polarity => { table_direct } + impl_defaultness => { table_direct } + constness => { table_direct } + coerce_unsized_info => { table } + mir_const_qualif => { table } + rendered_const => { table } + asyncness => { table_direct } + fn_arg_names => { table } + generator_kind => { table } + trait_def => { table } + + adt_def => { cdata.get_adt_def(def_id.index, tcx) } + adt_destructor => { + let _ = cdata; + tcx.calculate_dtor(def_id, |_,_| Ok(())) + } + associated_item_def_ids => { + tcx.arena.alloc_from_iter(cdata.get_associated_item_def_ids(def_id.index, tcx.sess)) + } + associated_item => { cdata.get_associated_item(def_id.index) } + inherent_impls => { cdata.get_inherent_implementations_for_type(tcx, def_id.index) } + is_foreign_item => { cdata.is_foreign_item(def_id.index) } + item_attrs => { tcx.arena.alloc_from_iter(cdata.get_item_attrs(def_id.index, tcx.sess)) } + is_mir_available => { cdata.is_item_mir_available(def_id.index) } + is_ctfe_mir_available => { cdata.is_ctfe_mir_available(def_id.index) } + + dylib_dependency_formats => { cdata.get_dylib_dependency_formats(tcx) } + is_private_dep => { cdata.private_dep } + is_panic_runtime => { cdata.root.panic_runtime } + is_compiler_builtins => { cdata.root.compiler_builtins } + has_global_allocator => { cdata.root.has_global_allocator } + has_panic_handler => { cdata.root.has_panic_handler } + is_profiler_runtime => { cdata.root.profiler_runtime } + required_panic_strategy => { cdata.root.required_panic_strategy } + panic_in_drop_strategy => { cdata.root.panic_in_drop_strategy } + extern_crate => { + let r = *cdata.extern_crate.lock(); + r.map(|c| &*tcx.arena.alloc(c)) + } + is_no_builtins => { cdata.root.no_builtins } + symbol_mangling_version => { cdata.root.symbol_mangling_version } + reachable_non_generics => { + let reachable_non_generics = tcx + .exported_symbols(cdata.cnum) + .iter() + .filter_map(|&(exported_symbol, export_info)| { + if let ExportedSymbol::NonGeneric(def_id) = exported_symbol { + Some((def_id, export_info)) + } else { + None + } + }) + .collect(); + + reachable_non_generics + } + native_libraries => { cdata.get_native_libraries(tcx.sess).collect() } + foreign_modules => { cdata.get_foreign_modules(tcx.sess).map(|m| (m.def_id, m)).collect() } + crate_hash => { cdata.root.hash } + crate_host_hash => { cdata.host_hash } + crate_name => { cdata.root.name } + + extra_filename => { cdata.root.extra_filename.clone() } + + traits_in_crate => { tcx.arena.alloc_from_iter(cdata.get_traits()) } + implementations_of_trait => { cdata.get_implementations_of_trait(tcx, other) } + crate_incoherent_impls => { cdata.get_incoherent_impls(tcx, other) } + + dep_kind => { + let r = *cdata.dep_kind.lock(); + r + } + module_children => { + let mut result = SmallVec::<[_; 8]>::new(); + cdata.for_each_module_child(def_id.index, |child| result.push(child), tcx.sess); + tcx.arena.alloc_slice(&result) + } + defined_lib_features => { cdata.get_lib_features(tcx) } + stability_implications => { + cdata.get_stability_implications(tcx).iter().copied().collect() + } + is_intrinsic => { cdata.get_is_intrinsic(def_id.index) } + defined_lang_items => { cdata.get_lang_items(tcx) } + diagnostic_items => { cdata.get_diagnostic_items() } + missing_lang_items => { cdata.get_missing_lang_items(tcx) } + + missing_extern_crate_item => { + let r = matches!(*cdata.extern_crate.borrow(), Some(extern_crate) if !extern_crate.is_direct()); + r + } + + used_crate_source => { Lrc::clone(&cdata.source) } + debugger_visualizers => { cdata.get_debugger_visualizers() } + + exported_symbols => { + let syms = cdata.exported_symbols(tcx); + + // FIXME rust-lang/rust#64319, rust-lang/rust#64872: We want + // to block export of generics from dylibs, but we must fix + // rust-lang/rust#65890 before we can do that robustly. + + syms + } + + crate_extern_paths => { cdata.source().paths().cloned().collect() } + expn_that_defined => { cdata.get_expn_that_defined(def_id.index, tcx.sess) } + generator_diagnostic_data => { cdata.get_generator_diagnostic_data(tcx, def_id.index) } +} + +pub(in crate::rmeta) fn provide(providers: &mut Providers) { + // FIXME(#44234) - almost all of these queries have no sub-queries and + // therefore no actual inputs, they're just reading tables calculated in + // resolve! Does this work? Unsure! That's what the issue is about + *providers = Providers { + allocator_kind: |tcx, ()| CStore::from_tcx(tcx).allocator_kind(), + is_dllimport_foreign_item: |tcx, id| match tcx.native_library_kind(id) { + Some( + NativeLibKind::Dylib { .. } | NativeLibKind::RawDylib | NativeLibKind::Unspecified, + ) => true, + _ => false, + }, + is_statically_included_foreign_item: |tcx, id| { + matches!(tcx.native_library_kind(id), Some(NativeLibKind::Static { .. })) + }, + is_private_dep: |_tcx, cnum| { + assert_eq!(cnum, LOCAL_CRATE); + false + }, + native_library_kind: |tcx, id| { + tcx.native_libraries(id.krate) + .iter() + .filter(|lib| native_libs::relevant_lib(&tcx.sess, lib)) + .find(|lib| { + let Some(fm_id) = lib.foreign_module else { + return false; + }; + let map = tcx.foreign_modules(id.krate); + map.get(&fm_id) + .expect("failed to find foreign module") + .foreign_items + .contains(&id) + }) + .map(|l| l.kind) + }, + native_libraries: |tcx, cnum| { + assert_eq!(cnum, LOCAL_CRATE); + native_libs::collect(tcx) + }, + foreign_modules: |tcx, cnum| { + assert_eq!(cnum, LOCAL_CRATE); + foreign_modules::collect(tcx).into_iter().map(|m| (m.def_id, m)).collect() + }, + + // Returns a map from a sufficiently visible external item (i.e., an + // external item that is visible from at least one local module) to a + // sufficiently visible parent (considering modules that re-export the + // external item to be parents). + visible_parent_map: |tcx, ()| { + use std::collections::hash_map::Entry; + use std::collections::vec_deque::VecDeque; + + let mut visible_parent_map: DefIdMap<DefId> = Default::default(); + // This is a secondary visible_parent_map, storing the DefId of + // parents that re-export the child as `_` or module parents + // which are `#[doc(hidden)]`. Since we prefer paths that don't + // do this, merge this map at the end, only if we're missing + // keys from the former. + // This is a rudimentary check that does not catch all cases, + // just the easiest. + let mut fallback_map: DefIdMap<DefId> = Default::default(); + + // Issue 46112: We want the map to prefer the shortest + // paths when reporting the path to an item. Therefore we + // build up the map via a breadth-first search (BFS), + // which naturally yields minimal-length paths. + // + // Note that it needs to be a BFS over the whole forest of + // crates, not just each individual crate; otherwise you + // only get paths that are locally minimal with respect to + // whatever crate we happened to encounter first in this + // traversal, but not globally minimal across all crates. + let bfs_queue = &mut VecDeque::new(); + + for &cnum in tcx.crates(()) { + // Ignore crates without a corresponding local `extern crate` item. + if tcx.missing_extern_crate_item(cnum) { + continue; + } + + bfs_queue.push_back(cnum.as_def_id()); + } + + let mut add_child = |bfs_queue: &mut VecDeque<_>, child: &ModChild, parent: DefId| { + if !child.vis.is_public() { + return; + } + + if let Some(def_id) = child.res.opt_def_id() { + if child.ident.name == kw::Underscore { + fallback_map.insert(def_id, parent); + return; + } + + if ty::util::is_doc_hidden(tcx, parent) { + fallback_map.insert(def_id, parent); + return; + } + + match visible_parent_map.entry(def_id) { + Entry::Occupied(mut entry) => { + // If `child` is defined in crate `cnum`, ensure + // that it is mapped to a parent in `cnum`. + if def_id.is_local() && entry.get().is_local() { + entry.insert(parent); + } + } + Entry::Vacant(entry) => { + entry.insert(parent); + if matches!( + child.res, + Res::Def(DefKind::Mod | DefKind::Enum | DefKind::Trait, _) + ) { + bfs_queue.push_back(def_id); + } + } + } + } + }; + + while let Some(def) = bfs_queue.pop_front() { + for child in tcx.module_children(def).iter() { + add_child(bfs_queue, child, def); + } + } + + // Fill in any missing entries with the less preferable path. + // If this path re-exports the child as `_`, we still use this + // path in a diagnostic that suggests importing `::*`. + for (child, parent) in fallback_map { + visible_parent_map.entry(child).or_insert(parent); + } + + visible_parent_map + }, + + dependency_formats: |tcx, ()| Lrc::new(crate::dependency_format::calculate(tcx)), + has_global_allocator: |tcx, cnum| { + assert_eq!(cnum, LOCAL_CRATE); + CStore::from_tcx(tcx).has_global_allocator() + }, + postorder_cnums: |tcx, ()| { + tcx.arena + .alloc_slice(&CStore::from_tcx(tcx).crate_dependencies_in_postorder(LOCAL_CRATE)) + }, + crates: |tcx, ()| tcx.arena.alloc_from_iter(CStore::from_tcx(tcx).crates_untracked()), + ..*providers + }; +} + +impl CStore { + pub fn struct_field_names_untracked<'a>( + &'a self, + def: DefId, + sess: &'a Session, + ) -> impl Iterator<Item = Spanned<Symbol>> + 'a { + self.get_crate_data(def.krate).get_struct_field_names(def.index, sess) + } + + pub fn struct_field_visibilities_untracked( + &self, + def: DefId, + ) -> impl Iterator<Item = Visibility> + '_ { + self.get_crate_data(def.krate).get_struct_field_visibilities(def.index) + } + + pub fn ctor_def_id_and_kind_untracked(&self, def: DefId) -> Option<(DefId, CtorKind)> { + self.get_crate_data(def.krate).get_ctor_def_id_and_kind(def.index) + } + + pub fn visibility_untracked(&self, def: DefId) -> Visibility { + self.get_crate_data(def.krate).get_visibility(def.index) + } + + pub fn module_children_untracked(&self, def_id: DefId, sess: &Session) -> Vec<ModChild> { + let mut result = vec![]; + self.get_crate_data(def_id.krate).for_each_module_child( + def_id.index, + |child| result.push(child), + sess, + ); + result + } + + pub fn load_macro_untracked(&self, id: DefId, sess: &Session) -> LoadedMacro { + let _prof_timer = sess.prof.generic_activity("metadata_load_macro"); + + let data = self.get_crate_data(id.krate); + if data.root.is_proc_macro_crate() { + return LoadedMacro::ProcMacro(data.load_proc_macro(id.index, sess)); + } + + let span = data.get_span(id.index, sess); + + LoadedMacro::MacroDef( + ast::Item { + ident: data.item_ident(id.index, sess), + id: ast::DUMMY_NODE_ID, + span, + attrs: data.get_item_attrs(id.index, sess).collect(), + kind: ast::ItemKind::MacroDef(data.get_macro(id.index, sess)), + vis: ast::Visibility { + span: span.shrink_to_lo(), + kind: ast::VisibilityKind::Inherited, + tokens: None, + }, + tokens: None, + }, + data.root.edition, + ) + } + + pub fn fn_has_self_parameter_untracked(&self, def: DefId) -> bool { + self.get_crate_data(def.krate).get_fn_has_self_parameter(def.index) + } + + pub fn crate_source_untracked(&self, cnum: CrateNum) -> Lrc<CrateSource> { + self.get_crate_data(cnum).source.clone() + } + + pub fn get_span_untracked(&self, def_id: DefId, sess: &Session) -> Span { + self.get_crate_data(def_id.krate).get_span(def_id.index, sess) + } + + pub fn def_kind(&self, def: DefId) -> DefKind { + self.get_crate_data(def.krate).def_kind(def.index) + } + + pub fn crates_untracked(&self) -> impl Iterator<Item = CrateNum> + '_ { + self.iter_crate_data().map(|(cnum, _)| cnum) + } + + pub fn item_generics_num_lifetimes(&self, def_id: DefId, sess: &Session) -> usize { + self.get_crate_data(def_id.krate).get_generics(def_id.index, sess).own_counts().lifetimes + } + + pub fn module_expansion_untracked(&self, def_id: DefId, sess: &Session) -> ExpnId { + self.get_crate_data(def_id.krate).module_expansion(def_id.index, sess) + } + + /// Only public-facing way to traverse all the definitions in a non-local crate. + /// Critically useful for this third-party project: <https://github.com/hacspec/hacspec>. + /// See <https://github.com/rust-lang/rust/pull/85889> for context. + pub fn num_def_ids_untracked(&self, cnum: CrateNum) -> usize { + self.get_crate_data(cnum).num_def_ids() + } + + pub fn item_attrs_untracked<'a>( + &'a self, + def_id: DefId, + sess: &'a Session, + ) -> impl Iterator<Item = ast::Attribute> + 'a { + self.get_crate_data(def_id.krate).get_item_attrs(def_id.index, sess) + } + + pub fn get_proc_macro_quoted_span_untracked( + &self, + cnum: CrateNum, + id: usize, + sess: &Session, + ) -> Span { + self.get_crate_data(cnum).get_proc_macro_quoted_span(id, sess) + } + + /// Decodes all traits in the crate (for rustdoc). + pub fn traits_in_crate_untracked(&self, cnum: CrateNum) -> impl Iterator<Item = DefId> + '_ { + self.get_crate_data(cnum).get_traits() + } + + /// Decodes all trait impls in the crate (for rustdoc). + pub fn trait_impls_in_crate_untracked( + &self, + cnum: CrateNum, + ) -> impl Iterator<Item = (DefId, DefId, Option<SimplifiedType>)> + '_ { + self.get_crate_data(cnum).get_trait_impls() + } + + /// Decodes all inherent impls in the crate (for rustdoc). + pub fn inherent_impls_in_crate_untracked( + &self, + cnum: CrateNum, + ) -> impl Iterator<Item = (DefId, DefId)> + '_ { + self.get_crate_data(cnum).get_inherent_impls() + } + + /// Decodes all incoherent inherent impls in the crate (for rustdoc). + pub fn incoherent_impls_in_crate_untracked( + &self, + cnum: CrateNum, + ) -> impl Iterator<Item = DefId> + '_ { + self.get_crate_data(cnum).get_all_incoherent_impls() + } + + pub fn associated_item_def_ids_untracked<'a>( + &'a self, + def_id: DefId, + sess: &'a Session, + ) -> impl Iterator<Item = DefId> + 'a { + self.get_crate_data(def_id.krate).get_associated_item_def_ids(def_id.index, sess) + } + + pub fn may_have_doc_links_untracked(&self, def_id: DefId) -> bool { + self.get_crate_data(def_id.krate).get_may_have_doc_links(def_id.index) + } +} + +impl CrateStore for CStore { + fn as_any(&self) -> &dyn Any { + self + } + + fn crate_name(&self, cnum: CrateNum) -> Symbol { + self.get_crate_data(cnum).root.name + } + + fn stable_crate_id(&self, cnum: CrateNum) -> StableCrateId { + self.get_crate_data(cnum).root.stable_crate_id + } + + fn stable_crate_id_to_crate_num(&self, stable_crate_id: StableCrateId) -> CrateNum { + self.stable_crate_ids[&stable_crate_id] + } + + /// Returns the `DefKey` for a given `DefId`. This indicates the + /// parent `DefId` as well as some idea of what kind of data the + /// `DefId` refers to. + fn def_key(&self, def: DefId) -> DefKey { + self.get_crate_data(def.krate).def_key(def.index) + } + + fn def_path(&self, def: DefId) -> DefPath { + self.get_crate_data(def.krate).def_path(def.index) + } + + fn def_path_hash(&self, def: DefId) -> DefPathHash { + self.get_crate_data(def.krate).def_path_hash(def.index) + } + + fn def_path_hash_to_def_id(&self, cnum: CrateNum, hash: DefPathHash) -> DefId { + let def_index = self.get_crate_data(cnum).def_path_hash_to_def_index(hash); + DefId { krate: cnum, index: def_index } + } + + fn expn_hash_to_expn_id( + &self, + sess: &Session, + cnum: CrateNum, + index_guess: u32, + hash: ExpnHash, + ) -> ExpnId { + self.get_crate_data(cnum).expn_hash_to_expn_id(sess, index_guess, hash) + } + + fn import_source_files(&self, sess: &Session, cnum: CrateNum) { + self.get_crate_data(cnum).imported_source_files(sess); + } +} |