+++ /dev/null
-//! Defines the set of legal keys that can be used in queries.
-
-use rustc_hir::def_id::{CrateNum, DefId, LocalDefId, LOCAL_CRATE};
-use rustc_hir::hir_id::{HirId, OwnerId};
-use rustc_middle::infer::canonical::Canonical;
-use rustc_middle::mir;
-use rustc_middle::traits;
-use rustc_middle::ty::fast_reject::SimplifiedType;
-use rustc_middle::ty::subst::{GenericArg, SubstsRef};
-use rustc_middle::ty::{self, layout::TyAndLayout, Ty, TyCtxt};
-use rustc_span::symbol::{Ident, Symbol};
-use rustc_span::{Span, DUMMY_SP};
-
-/// The `Key` trait controls what types can legally be used as the key
-/// for a query.
-pub trait Key {
- /// Given an instance of this key, what crate is it referring to?
- /// This is used to find the provider.
- fn query_crate_is_local(&self) -> bool;
-
- /// In the event that a cycle occurs, if no explicit span has been
- /// given for a query with key `self`, what span should we use?
- fn default_span(&self, tcx: TyCtxt<'_>) -> Span;
-
- /// If the key is a [`DefId`] or `DefId`--equivalent, return that `DefId`.
- /// Otherwise, return `None`.
- fn key_as_def_id(&self) -> Option<DefId> {
- None
- }
-
- fn ty_adt_id(&self) -> Option<DefId> {
- None
- }
-}
-
-impl Key for () {
- #[inline(always)]
- fn query_crate_is_local(&self) -> bool {
- true
- }
-
- fn default_span(&self, _: TyCtxt<'_>) -> Span {
- DUMMY_SP
- }
-}
-
-impl<'tcx> Key for ty::InstanceDef<'tcx> {
- #[inline(always)]
- fn query_crate_is_local(&self) -> bool {
- true
- }
-
- fn default_span(&self, tcx: TyCtxt<'_>) -> Span {
- tcx.def_span(self.def_id())
- }
-}
-
-impl<'tcx> Key for ty::Instance<'tcx> {
- #[inline(always)]
- fn query_crate_is_local(&self) -> bool {
- true
- }
-
- fn default_span(&self, tcx: TyCtxt<'_>) -> Span {
- tcx.def_span(self.def_id())
- }
-}
-
-impl<'tcx> Key for mir::interpret::GlobalId<'tcx> {
- #[inline(always)]
- fn query_crate_is_local(&self) -> bool {
- true
- }
-
- fn default_span(&self, tcx: TyCtxt<'_>) -> Span {
- self.instance.default_span(tcx)
- }
-}
-
-impl<'tcx> Key for (Ty<'tcx>, Option<ty::PolyExistentialTraitRef<'tcx>>) {
- #[inline(always)]
- fn query_crate_is_local(&self) -> bool {
- true
- }
-
- fn default_span(&self, _: TyCtxt<'_>) -> Span {
- DUMMY_SP
- }
-}
-
-impl<'tcx> Key for mir::interpret::LitToConstInput<'tcx> {
- #[inline(always)]
- fn query_crate_is_local(&self) -> bool {
- true
- }
-
- fn default_span(&self, _tcx: TyCtxt<'_>) -> Span {
- DUMMY_SP
- }
-}
-
-impl Key for CrateNum {
- #[inline(always)]
- fn query_crate_is_local(&self) -> bool {
- *self == LOCAL_CRATE
- }
- fn default_span(&self, _: TyCtxt<'_>) -> Span {
- DUMMY_SP
- }
-}
-
-impl Key for OwnerId {
- #[inline(always)]
- fn query_crate_is_local(&self) -> bool {
- true
- }
- fn default_span(&self, tcx: TyCtxt<'_>) -> Span {
- self.to_def_id().default_span(tcx)
- }
- fn key_as_def_id(&self) -> Option<DefId> {
- Some(self.to_def_id())
- }
-}
-
-impl Key for LocalDefId {
- #[inline(always)]
- fn query_crate_is_local(&self) -> bool {
- true
- }
- fn default_span(&self, tcx: TyCtxt<'_>) -> Span {
- self.to_def_id().default_span(tcx)
- }
- fn key_as_def_id(&self) -> Option<DefId> {
- Some(self.to_def_id())
- }
-}
-
-impl Key for DefId {
- #[inline(always)]
- fn query_crate_is_local(&self) -> bool {
- self.krate == LOCAL_CRATE
- }
- fn default_span(&self, tcx: TyCtxt<'_>) -> Span {
- tcx.def_span(*self)
- }
- #[inline(always)]
- fn key_as_def_id(&self) -> Option<DefId> {
- Some(*self)
- }
-}
-
-impl Key for ty::WithOptConstParam<LocalDefId> {
- #[inline(always)]
- fn query_crate_is_local(&self) -> bool {
- true
- }
- fn default_span(&self, tcx: TyCtxt<'_>) -> Span {
- self.did.default_span(tcx)
- }
-}
-
-impl Key for SimplifiedType {
- #[inline(always)]
- fn query_crate_is_local(&self) -> bool {
- true
- }
- fn default_span(&self, _: TyCtxt<'_>) -> Span {
- DUMMY_SP
- }
-}
-
-impl Key for (DefId, DefId) {
- #[inline(always)]
- fn query_crate_is_local(&self) -> bool {
- self.0.krate == LOCAL_CRATE
- }
- fn default_span(&self, tcx: TyCtxt<'_>) -> Span {
- self.1.default_span(tcx)
- }
-}
-
-impl<'tcx> Key for (ty::Instance<'tcx>, LocalDefId) {
- #[inline(always)]
- fn query_crate_is_local(&self) -> bool {
- true
- }
- fn default_span(&self, tcx: TyCtxt<'_>) -> Span {
- self.0.default_span(tcx)
- }
-}
-
-impl Key for (DefId, LocalDefId) {
- #[inline(always)]
- fn query_crate_is_local(&self) -> bool {
- self.0.krate == LOCAL_CRATE
- }
- fn default_span(&self, tcx: TyCtxt<'_>) -> Span {
- self.1.default_span(tcx)
- }
-}
-
-impl Key for (LocalDefId, DefId) {
- #[inline(always)]
- fn query_crate_is_local(&self) -> bool {
- true
- }
- fn default_span(&self, tcx: TyCtxt<'_>) -> Span {
- self.0.default_span(tcx)
- }
-}
-
-impl Key for (LocalDefId, LocalDefId) {
- #[inline(always)]
- fn query_crate_is_local(&self) -> bool {
- true
- }
- fn default_span(&self, tcx: TyCtxt<'_>) -> Span {
- self.0.default_span(tcx)
- }
-}
-
-impl Key for (DefId, Option<Ident>) {
- #[inline(always)]
- fn query_crate_is_local(&self) -> bool {
- self.0.krate == LOCAL_CRATE
- }
- fn default_span(&self, tcx: TyCtxt<'_>) -> Span {
- tcx.def_span(self.0)
- }
- #[inline(always)]
- fn key_as_def_id(&self) -> Option<DefId> {
- Some(self.0)
- }
-}
-
-impl Key for (DefId, LocalDefId, Ident) {
- #[inline(always)]
- fn query_crate_is_local(&self) -> bool {
- self.0.krate == LOCAL_CRATE
- }
- fn default_span(&self, tcx: TyCtxt<'_>) -> Span {
- self.1.default_span(tcx)
- }
-}
-
-impl Key for (CrateNum, DefId) {
- #[inline(always)]
- fn query_crate_is_local(&self) -> bool {
- self.0 == LOCAL_CRATE
- }
- fn default_span(&self, tcx: TyCtxt<'_>) -> Span {
- self.1.default_span(tcx)
- }
-}
-
-impl Key for (CrateNum, SimplifiedType) {
- #[inline(always)]
- fn query_crate_is_local(&self) -> bool {
- self.0 == LOCAL_CRATE
- }
- fn default_span(&self, _: TyCtxt<'_>) -> Span {
- DUMMY_SP
- }
-}
-
-impl Key for (DefId, SimplifiedType) {
- #[inline(always)]
- fn query_crate_is_local(&self) -> bool {
- self.0.krate == LOCAL_CRATE
- }
- fn default_span(&self, tcx: TyCtxt<'_>) -> Span {
- self.0.default_span(tcx)
- }
-}
-
-impl<'tcx> Key for SubstsRef<'tcx> {
- #[inline(always)]
- fn query_crate_is_local(&self) -> bool {
- true
- }
- fn default_span(&self, _: TyCtxt<'_>) -> Span {
- DUMMY_SP
- }
-}
-
-impl<'tcx> Key for (DefId, SubstsRef<'tcx>) {
- #[inline(always)]
- fn query_crate_is_local(&self) -> bool {
- self.0.krate == LOCAL_CRATE
- }
- fn default_span(&self, tcx: TyCtxt<'_>) -> Span {
- self.0.default_span(tcx)
- }
-}
-
-impl<'tcx> Key for (ty::UnevaluatedConst<'tcx>, ty::UnevaluatedConst<'tcx>) {
- #[inline(always)]
- fn query_crate_is_local(&self) -> bool {
- (self.0).def.did.krate == LOCAL_CRATE
- }
- fn default_span(&self, tcx: TyCtxt<'_>) -> Span {
- (self.0).def.did.default_span(tcx)
- }
-}
-
-impl<'tcx> Key for (LocalDefId, DefId, SubstsRef<'tcx>) {
- #[inline(always)]
- fn query_crate_is_local(&self) -> bool {
- true
- }
- fn default_span(&self, tcx: TyCtxt<'_>) -> Span {
- self.0.default_span(tcx)
- }
-}
-
-impl<'tcx> Key for (ty::ParamEnv<'tcx>, ty::PolyTraitRef<'tcx>) {
- #[inline(always)]
- fn query_crate_is_local(&self) -> bool {
- self.1.def_id().krate == LOCAL_CRATE
- }
- fn default_span(&self, tcx: TyCtxt<'_>) -> Span {
- tcx.def_span(self.1.def_id())
- }
-}
-
-impl<'tcx> Key for (ty::Const<'tcx>, mir::Field) {
- #[inline(always)]
- fn query_crate_is_local(&self) -> bool {
- true
- }
- fn default_span(&self, _: TyCtxt<'_>) -> Span {
- DUMMY_SP
- }
-}
-
-impl<'tcx> Key for mir::interpret::ConstAlloc<'tcx> {
- #[inline(always)]
- fn query_crate_is_local(&self) -> bool {
- true
- }
- fn default_span(&self, _: TyCtxt<'_>) -> Span {
- DUMMY_SP
- }
-}
-
-impl<'tcx> Key for ty::PolyTraitRef<'tcx> {
- #[inline(always)]
- fn query_crate_is_local(&self) -> bool {
- self.def_id().krate == LOCAL_CRATE
- }
- fn default_span(&self, tcx: TyCtxt<'_>) -> Span {
- tcx.def_span(self.def_id())
- }
-}
-
-impl<'tcx> Key for ty::PolyExistentialTraitRef<'tcx> {
- #[inline(always)]
- fn query_crate_is_local(&self) -> bool {
- self.def_id().krate == LOCAL_CRATE
- }
- fn default_span(&self, tcx: TyCtxt<'_>) -> Span {
- tcx.def_span(self.def_id())
- }
-}
-
-impl<'tcx> Key for (ty::PolyTraitRef<'tcx>, ty::PolyTraitRef<'tcx>) {
- #[inline(always)]
- fn query_crate_is_local(&self) -> bool {
- self.0.def_id().krate == LOCAL_CRATE
- }
- fn default_span(&self, tcx: TyCtxt<'_>) -> Span {
- tcx.def_span(self.0.def_id())
- }
-}
-
-impl<'tcx> Key for GenericArg<'tcx> {
- #[inline(always)]
- fn query_crate_is_local(&self) -> bool {
- true
- }
- fn default_span(&self, _: TyCtxt<'_>) -> Span {
- DUMMY_SP
- }
-}
-
-impl<'tcx> Key for mir::ConstantKind<'tcx> {
- #[inline(always)]
- fn query_crate_is_local(&self) -> bool {
- true
- }
- fn default_span(&self, _: TyCtxt<'_>) -> Span {
- DUMMY_SP
- }
-}
-
-impl<'tcx> Key for ty::Const<'tcx> {
- #[inline(always)]
- fn query_crate_is_local(&self) -> bool {
- true
- }
- fn default_span(&self, _: TyCtxt<'_>) -> Span {
- DUMMY_SP
- }
-}
-
-impl<'tcx> Key for Ty<'tcx> {
- #[inline(always)]
- fn query_crate_is_local(&self) -> bool {
- true
- }
- fn default_span(&self, _: TyCtxt<'_>) -> Span {
- DUMMY_SP
- }
- fn ty_adt_id(&self) -> Option<DefId> {
- match self.kind() {
- ty::Adt(adt, _) => Some(adt.did()),
- _ => None,
- }
- }
-}
-
-impl<'tcx> Key for TyAndLayout<'tcx> {
- #[inline(always)]
- fn query_crate_is_local(&self) -> bool {
- true
- }
- fn default_span(&self, _: TyCtxt<'_>) -> Span {
- DUMMY_SP
- }
-}
-
-impl<'tcx> Key for (Ty<'tcx>, Ty<'tcx>) {
- #[inline(always)]
- fn query_crate_is_local(&self) -> bool {
- true
- }
- fn default_span(&self, _: TyCtxt<'_>) -> Span {
- DUMMY_SP
- }
-}
-
-impl<'tcx> Key for &'tcx ty::List<ty::Predicate<'tcx>> {
- #[inline(always)]
- fn query_crate_is_local(&self) -> bool {
- true
- }
- fn default_span(&self, _: TyCtxt<'_>) -> Span {
- DUMMY_SP
- }
-}
-
-impl<'tcx> Key for ty::ParamEnv<'tcx> {
- #[inline(always)]
- fn query_crate_is_local(&self) -> bool {
- true
- }
- fn default_span(&self, _: TyCtxt<'_>) -> Span {
- DUMMY_SP
- }
-}
-
-impl<'tcx, T: Key> Key for ty::ParamEnvAnd<'tcx, T> {
- #[inline(always)]
- fn query_crate_is_local(&self) -> bool {
- self.value.query_crate_is_local()
- }
- fn default_span(&self, tcx: TyCtxt<'_>) -> Span {
- self.value.default_span(tcx)
- }
-}
-
-impl Key for Symbol {
- #[inline(always)]
- fn query_crate_is_local(&self) -> bool {
- true
- }
- fn default_span(&self, _tcx: TyCtxt<'_>) -> Span {
- DUMMY_SP
- }
-}
-
-impl Key for Option<Symbol> {
- #[inline(always)]
- fn query_crate_is_local(&self) -> bool {
- true
- }
- fn default_span(&self, _tcx: TyCtxt<'_>) -> Span {
- DUMMY_SP
- }
-}
-
-/// Canonical query goals correspond to abstract trait operations that
-/// are not tied to any crate in particular.
-impl<'tcx, T> Key for Canonical<'tcx, T> {
- #[inline(always)]
- fn query_crate_is_local(&self) -> bool {
- true
- }
-
- fn default_span(&self, _tcx: TyCtxt<'_>) -> Span {
- DUMMY_SP
- }
-}
-
-impl Key for (Symbol, u32, u32) {
- #[inline(always)]
- fn query_crate_is_local(&self) -> bool {
- true
- }
-
- fn default_span(&self, _tcx: TyCtxt<'_>) -> Span {
- DUMMY_SP
- }
-}
-
-impl<'tcx> Key for (DefId, Ty<'tcx>, SubstsRef<'tcx>, ty::ParamEnv<'tcx>) {
- #[inline(always)]
- fn query_crate_is_local(&self) -> bool {
- true
- }
-
- fn default_span(&self, _tcx: TyCtxt<'_>) -> Span {
- DUMMY_SP
- }
-}
-
-impl<'tcx> Key for (ty::Predicate<'tcx>, traits::WellFormedLoc) {
- #[inline(always)]
- fn query_crate_is_local(&self) -> bool {
- true
- }
-
- fn default_span(&self, _tcx: TyCtxt<'_>) -> Span {
- DUMMY_SP
- }
-}
-
-impl<'tcx> Key for (ty::PolyFnSig<'tcx>, &'tcx ty::List<Ty<'tcx>>) {
- #[inline(always)]
- fn query_crate_is_local(&self) -> bool {
- true
- }
-
- fn default_span(&self, _: TyCtxt<'_>) -> Span {
- DUMMY_SP
- }
-}
-
-impl<'tcx> Key for (ty::Instance<'tcx>, &'tcx ty::List<Ty<'tcx>>) {
- #[inline(always)]
- fn query_crate_is_local(&self) -> bool {
- true
- }
-
- fn default_span(&self, tcx: TyCtxt<'_>) -> Span {
- self.0.default_span(tcx)
- }
-}
-
-impl<'tcx> Key for (Ty<'tcx>, ty::ValTree<'tcx>) {
- #[inline(always)]
- fn query_crate_is_local(&self) -> bool {
- true
- }
-
- fn default_span(&self, _: TyCtxt<'_>) -> Span {
- DUMMY_SP
- }
-}
-
-impl Key for HirId {
- #[inline(always)]
- fn query_crate_is_local(&self) -> bool {
- true
- }
-
- fn default_span(&self, tcx: TyCtxt<'_>) -> Span {
- tcx.hir().span(*self)
- }
-
- #[inline(always)]
- fn key_as_def_id(&self) -> Option<DefId> {
- None
- }
-}
projects / rustc.git / blobdiff