670 lines
25 KiB
Rust
670 lines
25 KiB
Rust
use crate::creader::{CStore, LoadedMacro};
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use crate::foreign_modules;
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use crate::native_libs;
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use crate::rmeta::table::IsDefault;
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use crate::rmeta::AttrFlags;
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use rustc_ast as ast;
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use rustc_attr::Deprecation;
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use rustc_hir::def::{CtorKind, DefKind, Res};
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use rustc_hir::def_id::{CrateNum, DefId, DefIdMap, LOCAL_CRATE};
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use rustc_hir::definitions::{DefKey, DefPath, DefPathHash};
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use rustc_middle::arena::ArenaAllocatable;
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use rustc_middle::metadata::ModChild;
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use rustc_middle::middle::exported_symbols::ExportedSymbol;
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use rustc_middle::middle::stability::DeprecationEntry;
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use rustc_middle::ty::fast_reject::SimplifiedType;
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use rustc_middle::ty::query::{ExternProviders, Providers};
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use rustc_middle::ty::{self, TyCtxt, Visibility};
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use rustc_session::cstore::{CrateSource, CrateStore};
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use rustc_session::{Session, StableCrateId};
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use rustc_span::hygiene::{ExpnHash, ExpnId};
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use rustc_span::source_map::{Span, Spanned};
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use rustc_span::symbol::{kw, Symbol};
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use rustc_data_structures::sync::Lrc;
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use std::any::Any;
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use super::{Decodable, DecodeContext, DecodeIterator};
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trait ProcessQueryValue<'tcx, T> {
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fn process_decoded(self, _tcx: TyCtxt<'tcx>, _err: impl Fn() -> !) -> T;
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}
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impl<T> ProcessQueryValue<'_, Option<T>> for Option<T> {
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#[inline(always)]
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fn process_decoded(self, _tcx: TyCtxt<'_>, _err: impl Fn() -> !) -> Option<T> {
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self
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}
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}
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impl<T> ProcessQueryValue<'_, T> for Option<T> {
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#[inline(always)]
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fn process_decoded(self, _tcx: TyCtxt<'_>, err: impl Fn() -> !) -> T {
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if let Some(value) = self { value } else { err() }
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}
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}
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impl<'tcx, T: ArenaAllocatable<'tcx>> ProcessQueryValue<'tcx, &'tcx T> for Option<T> {
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#[inline(always)]
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fn process_decoded(self, tcx: TyCtxt<'tcx>, err: impl Fn() -> !) -> &'tcx T {
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if let Some(value) = self { tcx.arena.alloc(value) } else { err() }
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}
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}
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impl<T, E> ProcessQueryValue<'_, Result<Option<T>, E>> for Option<T> {
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#[inline(always)]
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fn process_decoded(self, _tcx: TyCtxt<'_>, _err: impl Fn() -> !) -> Result<Option<T>, E> {
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Ok(self)
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}
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}
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impl<'a, 'tcx, T: Copy + Decodable<DecodeContext<'a, 'tcx>>> ProcessQueryValue<'tcx, &'tcx [T]>
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for Option<DecodeIterator<'a, 'tcx, T>>
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{
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#[inline(always)]
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fn process_decoded(self, tcx: TyCtxt<'tcx>, _err: impl Fn() -> !) -> &'tcx [T] {
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if let Some(iter) = self { tcx.arena.alloc_from_iter(iter) } else { &[] }
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}
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}
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impl ProcessQueryValue<'_, Option<DeprecationEntry>> for Option<Deprecation> {
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#[inline(always)]
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fn process_decoded(self, _tcx: TyCtxt<'_>, _err: impl Fn() -> !) -> Option<DeprecationEntry> {
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self.map(DeprecationEntry::external)
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}
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}
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macro_rules! provide_one {
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($tcx:ident, $def_id:ident, $other:ident, $cdata:ident, $name:ident => { table }) => {
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provide_one! {
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$tcx, $def_id, $other, $cdata, $name => {
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$cdata
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.root
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.tables
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.$name
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.get($cdata, $def_id.index)
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.map(|lazy| lazy.decode(($cdata, $tcx)))
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.process_decoded($tcx, || panic!("{:?} does not have a {:?}", $def_id, stringify!($name)))
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}
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}
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};
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($tcx:ident, $def_id:ident, $other:ident, $cdata:ident, $name:ident => { table_defaulted_array }) => {
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provide_one! {
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$tcx, $def_id, $other, $cdata, $name => {
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let lazy = $cdata.root.tables.$name.get($cdata, $def_id.index);
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if lazy.is_default() { &[] } else { $tcx.arena.alloc_from_iter(lazy.decode(($cdata, $tcx))) }
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}
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}
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};
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($tcx:ident, $def_id:ident, $other:ident, $cdata:ident, $name:ident => { table_direct }) => {
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provide_one! {
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$tcx, $def_id, $other, $cdata, $name => {
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// We don't decode `table_direct`, since it's not a Lazy, but an actual value
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$cdata
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.root
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.tables
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.$name
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.get($cdata, $def_id.index)
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.process_decoded($tcx, || panic!("{:?} does not have a {:?}", $def_id, stringify!($name)))
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}
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}
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};
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($tcx:ident, $def_id:ident, $other:ident, $cdata:ident, $name:ident => $compute:block) => {
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fn $name<'tcx>(
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$tcx: TyCtxt<'tcx>,
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def_id_arg: ty::query::query_keys::$name<'tcx>,
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) -> ty::query::query_provided::$name<'tcx> {
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let _prof_timer =
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$tcx.prof.generic_activity(concat!("metadata_decode_entry_", stringify!($name)));
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#[allow(unused_variables)]
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let ($def_id, $other) = def_id_arg.into_args();
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assert!(!$def_id.is_local());
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// External query providers call `crate_hash` in order to register a dependency
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// on the crate metadata. The exception is `crate_hash` itself, which obviously
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// doesn't need to do this (and can't, as it would cause a query cycle).
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use rustc_middle::dep_graph::DepKind;
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if DepKind::$name != DepKind::crate_hash && $tcx.dep_graph.is_fully_enabled() {
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$tcx.ensure().crate_hash($def_id.krate);
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}
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let $cdata = CStore::from_tcx($tcx).get_crate_data($def_id.krate);
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$compute
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}
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};
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}
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macro_rules! provide {
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($tcx:ident, $def_id:ident, $other:ident, $cdata:ident,
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$($name:ident => { $($compute:tt)* })*) => {
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pub fn provide_extern(providers: &mut ExternProviders) {
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$(provide_one! {
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$tcx, $def_id, $other, $cdata, $name => { $($compute)* }
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})*
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*providers = ExternProviders {
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$($name,)*
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..*providers
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};
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}
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}
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}
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// small trait to work around different signature queries all being defined via
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// the macro above.
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trait IntoArgs {
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type Other;
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fn into_args(self) -> (DefId, Self::Other);
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}
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impl IntoArgs for DefId {
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type Other = ();
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fn into_args(self) -> (DefId, ()) {
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(self, ())
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}
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}
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impl IntoArgs for CrateNum {
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type Other = ();
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fn into_args(self) -> (DefId, ()) {
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(self.as_def_id(), ())
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}
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}
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impl IntoArgs for (CrateNum, DefId) {
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type Other = DefId;
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fn into_args(self) -> (DefId, DefId) {
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(self.0.as_def_id(), self.1)
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}
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}
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impl<'tcx> IntoArgs for ty::InstanceDef<'tcx> {
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type Other = ();
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fn into_args(self) -> (DefId, ()) {
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(self.def_id(), ())
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}
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}
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impl IntoArgs for (CrateNum, SimplifiedType) {
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type Other = SimplifiedType;
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fn into_args(self) -> (DefId, SimplifiedType) {
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(self.0.as_def_id(), self.1)
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}
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}
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provide! { tcx, def_id, other, cdata,
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explicit_item_bounds => { table_defaulted_array }
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explicit_predicates_of => { table }
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generics_of => { table }
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inferred_outlives_of => { table_defaulted_array }
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super_predicates_of => { table }
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type_of => { table }
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variances_of => { table }
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fn_sig => { table }
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codegen_fn_attrs => { table }
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impl_trait_ref => { table }
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const_param_default => { table }
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object_lifetime_default => { table }
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thir_abstract_const => { table }
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optimized_mir => { table }
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mir_for_ctfe => { table }
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mir_generator_witnesses => { table }
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promoted_mir => { table }
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def_span => { table }
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def_ident_span => { table }
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lookup_stability => { table }
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lookup_const_stability => { table }
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lookup_default_body_stability => { table }
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lookup_deprecation_entry => { table }
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params_in_repr => { table }
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unused_generic_params => { table }
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opt_def_kind => { table_direct }
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impl_parent => { table }
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impl_polarity => { table_direct }
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impl_defaultness => { table_direct }
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constness => { table_direct }
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coerce_unsized_info => { table }
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mir_const_qualif => { table }
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rendered_const => { table }
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asyncness => { table_direct }
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fn_arg_names => { table }
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generator_kind => { table }
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trait_def => { table }
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deduced_param_attrs => { table }
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is_type_alias_impl_trait => {
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debug_assert_eq!(tcx.def_kind(def_id), DefKind::OpaqueTy);
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cdata.root.tables.is_type_alias_impl_trait.get(cdata, def_id.index)
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}
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collect_return_position_impl_trait_in_trait_tys => {
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Ok(cdata
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.root
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.tables
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.trait_impl_trait_tys
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.get(cdata, def_id.index)
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.map(|lazy| lazy.decode((cdata, tcx)))
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.process_decoded(tcx, || panic!("{def_id:?} does not have trait_impl_trait_tys")))
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}
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visibility => { cdata.get_visibility(def_id.index) }
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adt_def => { cdata.get_adt_def(def_id.index, tcx) }
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adt_destructor => {
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let _ = cdata;
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tcx.calculate_dtor(def_id, |_,_| Ok(()))
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}
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associated_item_def_ids => {
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tcx.arena.alloc_from_iter(cdata.get_associated_item_def_ids(def_id.index, tcx.sess))
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}
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associated_item => { cdata.get_associated_item(def_id.index, tcx.sess) }
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inherent_impls => { cdata.get_inherent_implementations_for_type(tcx, def_id.index) }
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is_foreign_item => { cdata.is_foreign_item(def_id.index) }
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item_attrs => { tcx.arena.alloc_from_iter(cdata.get_item_attrs(def_id.index, tcx.sess)) }
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is_mir_available => { cdata.is_item_mir_available(def_id.index) }
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is_ctfe_mir_available => { cdata.is_ctfe_mir_available(def_id.index) }
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dylib_dependency_formats => { cdata.get_dylib_dependency_formats(tcx) }
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is_private_dep => { cdata.private_dep }
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is_panic_runtime => { cdata.root.panic_runtime }
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is_compiler_builtins => { cdata.root.compiler_builtins }
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has_global_allocator => { cdata.root.has_global_allocator }
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has_alloc_error_handler => { cdata.root.has_alloc_error_handler }
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has_panic_handler => { cdata.root.has_panic_handler }
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is_profiler_runtime => { cdata.root.profiler_runtime }
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required_panic_strategy => { cdata.root.required_panic_strategy }
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panic_in_drop_strategy => { cdata.root.panic_in_drop_strategy }
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extern_crate => {
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let r = *cdata.extern_crate.lock();
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r.map(|c| &*tcx.arena.alloc(c))
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}
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is_no_builtins => { cdata.root.no_builtins }
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symbol_mangling_version => { cdata.root.symbol_mangling_version }
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reachable_non_generics => {
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let reachable_non_generics = tcx
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.exported_symbols(cdata.cnum)
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.iter()
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.filter_map(|&(exported_symbol, export_info)| {
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if let ExportedSymbol::NonGeneric(def_id) = exported_symbol {
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Some((def_id, export_info))
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} else {
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None
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}
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})
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.collect();
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reachable_non_generics
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}
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native_libraries => { cdata.get_native_libraries(tcx.sess).collect() }
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foreign_modules => { cdata.get_foreign_modules(tcx.sess).map(|m| (m.def_id, m)).collect() }
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crate_hash => { cdata.root.hash }
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crate_host_hash => { cdata.host_hash }
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crate_name => { cdata.root.name }
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extra_filename => { cdata.root.extra_filename.clone() }
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traits_in_crate => { tcx.arena.alloc_from_iter(cdata.get_traits()) }
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trait_impls_in_crate => { tcx.arena.alloc_from_iter(cdata.get_trait_impls()) }
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implementations_of_trait => { cdata.get_implementations_of_trait(tcx, other) }
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crate_incoherent_impls => { cdata.get_incoherent_impls(tcx, other) }
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dep_kind => {
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let r = *cdata.dep_kind.lock();
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r
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}
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module_children => {
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tcx.arena.alloc_from_iter(cdata.get_module_children(def_id.index, tcx.sess))
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}
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defined_lib_features => { cdata.get_lib_features(tcx) }
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stability_implications => {
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cdata.get_stability_implications(tcx).iter().copied().collect()
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}
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is_intrinsic => { cdata.get_is_intrinsic(def_id.index) }
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defined_lang_items => { cdata.get_lang_items(tcx) }
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diagnostic_items => { cdata.get_diagnostic_items() }
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missing_lang_items => { cdata.get_missing_lang_items(tcx) }
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missing_extern_crate_item => {
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let r = matches!(*cdata.extern_crate.borrow(), Some(extern_crate) if !extern_crate.is_direct());
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r
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}
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used_crate_source => { Lrc::clone(&cdata.source) }
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debugger_visualizers => { cdata.get_debugger_visualizers() }
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exported_symbols => {
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let syms = cdata.exported_symbols(tcx);
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// FIXME rust-lang/rust#64319, rust-lang/rust#64872: We want
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// to block export of generics from dylibs, but we must fix
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// rust-lang/rust#65890 before we can do that robustly.
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syms
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}
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crate_extern_paths => { cdata.source().paths().cloned().collect() }
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expn_that_defined => { cdata.get_expn_that_defined(def_id.index, tcx.sess) }
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generator_diagnostic_data => { cdata.get_generator_diagnostic_data(tcx, def_id.index) }
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is_doc_hidden => { cdata.get_attr_flags(def_id.index).contains(AttrFlags::IS_DOC_HIDDEN) }
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doc_link_resolutions => { tcx.arena.alloc(cdata.get_doc_link_resolutions(def_id.index)) }
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doc_link_traits_in_scope => {
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tcx.arena.alloc_from_iter(cdata.get_doc_link_traits_in_scope(def_id.index))
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}
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}
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pub(in crate::rmeta) fn provide(providers: &mut Providers) {
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// FIXME(#44234) - almost all of these queries have no sub-queries and
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// therefore no actual inputs, they're just reading tables calculated in
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// resolve! Does this work? Unsure! That's what the issue is about
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*providers = Providers {
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allocator_kind: |tcx, ()| CStore::from_tcx(tcx).allocator_kind(),
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alloc_error_handler_kind: |tcx, ()| CStore::from_tcx(tcx).alloc_error_handler_kind(),
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is_private_dep: |_tcx, cnum| {
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assert_eq!(cnum, LOCAL_CRATE);
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false
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},
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native_library: |tcx, id| {
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tcx.native_libraries(id.krate)
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.iter()
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.filter(|lib| native_libs::relevant_lib(&tcx.sess, lib))
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.find(|lib| {
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let Some(fm_id) = lib.foreign_module else {
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return false;
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};
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let map = tcx.foreign_modules(id.krate);
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map.get(&fm_id)
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.expect("failed to find foreign module")
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.foreign_items
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.contains(&id)
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})
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},
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native_libraries: |tcx, cnum| {
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assert_eq!(cnum, LOCAL_CRATE);
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native_libs::collect(tcx)
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},
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foreign_modules: |tcx, cnum| {
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assert_eq!(cnum, LOCAL_CRATE);
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foreign_modules::collect(tcx).into_iter().map(|m| (m.def_id, m)).collect()
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},
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// Returns a map from a sufficiently visible external item (i.e., an
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// external item that is visible from at least one local module) to a
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// sufficiently visible parent (considering modules that re-export the
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// external item to be parents).
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visible_parent_map: |tcx, ()| {
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use std::collections::hash_map::Entry;
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use std::collections::vec_deque::VecDeque;
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let mut visible_parent_map: DefIdMap<DefId> = Default::default();
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// This is a secondary visible_parent_map, storing the DefId of
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// parents that re-export the child as `_` or module parents
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// which are `#[doc(hidden)]`. Since we prefer paths that don't
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// do this, merge this map at the end, only if we're missing
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// keys from the former.
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// This is a rudimentary check that does not catch all cases,
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// just the easiest.
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let mut fallback_map: Vec<(DefId, DefId)> = Default::default();
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// Issue 46112: We want the map to prefer the shortest
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// paths when reporting the path to an item. Therefore we
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// build up the map via a breadth-first search (BFS),
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// which naturally yields minimal-length paths.
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//
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// Note that it needs to be a BFS over the whole forest of
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// crates, not just each individual crate; otherwise you
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// only get paths that are locally minimal with respect to
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// whatever crate we happened to encounter first in this
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// traversal, but not globally minimal across all crates.
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let bfs_queue = &mut VecDeque::new();
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for &cnum in tcx.crates(()) {
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// Ignore crates without a corresponding local `extern crate` item.
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if tcx.missing_extern_crate_item(cnum) {
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continue;
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}
|
|
|
|
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.push((def_id, parent));
|
|
return;
|
|
}
|
|
|
|
if tcx.is_doc_hidden(parent) {
|
|
fallback_map.push((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()
|
|
},
|
|
has_alloc_error_handler: |tcx, cnum| {
|
|
assert_eq!(cnum, LOCAL_CRATE);
|
|
CStore::from_tcx(tcx).has_alloc_error_handler()
|
|
},
|
|
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<DefId>> + '_ {
|
|
self.get_crate_data(def.krate).get_struct_field_visibilities(def.index)
|
|
}
|
|
|
|
pub fn ctor_untracked(&self, def: DefId) -> Option<(CtorKind, DefId)> {
|
|
self.get_crate_data(def.krate).get_ctor(def.index)
|
|
}
|
|
|
|
pub fn visibility_untracked(&self, def: DefId) -> Visibility<DefId> {
|
|
self.get_crate_data(def.krate).get_visibility(def.index)
|
|
}
|
|
|
|
pub fn module_children_untracked<'a>(
|
|
&'a self,
|
|
def_id: DefId,
|
|
sess: &'a Session,
|
|
) -> impl Iterator<Item = ModChild> + 'a {
|
|
self.get_crate_data(def_id.krate).get_module_children(def_id.index, sess)
|
|
}
|
|
|
|
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, sess: &Session) -> bool {
|
|
self.get_crate_data(def.krate).get_fn_has_self_parameter(def.index, sess)
|
|
}
|
|
|
|
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)
|
|
}
|
|
}
|
|
|
|
impl CrateStore for CStore {
|
|
fn as_any(&self) -> &dyn Any {
|
|
self
|
|
}
|
|
fn untracked_as_any(&mut self) -> &mut 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) {
|
|
let cdata = self.get_crate_data(cnum);
|
|
for file_index in 0..cdata.root.source_map.size() {
|
|
cdata.imported_source_file(file_index as u32, sess);
|
|
}
|
|
}
|
|
}
|