1 use rustc_data_structures::fx::FxHashMap;
2 use rustc_hir::def_id::{DefId, DefIndex};
3 use rustc_index::vec::{Idx, IndexVec};
5 use crate::middle::exported_symbols::ExportedSymbol;
8 self, Clause, Const, FnSig, GeneratorDiagnosticData, GenericPredicates, Predicate, TraitRef, Ty,
11 pub trait ParameterizedOverTcx: 'static {
12 #[allow(unused_lifetimes)]
16 impl<T: ParameterizedOverTcx> ParameterizedOverTcx for &'static [T] {
17 type Value<'tcx> = &'tcx [T::Value<'tcx>];
20 impl<T: ParameterizedOverTcx> ParameterizedOverTcx for Option<T> {
21 type Value<'tcx> = Option<T::Value<'tcx>>;
24 impl<A: ParameterizedOverTcx, B: ParameterizedOverTcx> ParameterizedOverTcx for (A, B) {
25 type Value<'tcx> = (A::Value<'tcx>, B::Value<'tcx>);
28 impl<I: Idx + 'static, T: ParameterizedOverTcx> ParameterizedOverTcx for IndexVec<I, T> {
29 type Value<'tcx> = IndexVec<I, T::Value<'tcx>>;
32 impl<I: 'static, T: ParameterizedOverTcx> ParameterizedOverTcx for FxHashMap<I, T> {
33 type Value<'tcx> = FxHashMap<I, T::Value<'tcx>>;
36 impl<T: ParameterizedOverTcx> ParameterizedOverTcx for ty::Binder<'static, T> {
37 type Value<'tcx> = ty::Binder<'tcx, T::Value<'tcx>>;
41 macro_rules! trivially_parameterized_over_tcx {
42 ($($ty:ty),+ $(,)?) => {
44 impl $crate::ty::ParameterizedOverTcx for $ty {
45 #[allow(unused_lifetimes)]
46 type Value<'tcx> = $ty;
52 trivially_parameterized_over_tcx! {
57 crate::metadata::ModChild,
58 crate::middle::codegen_fn_attrs::CodegenFnAttrs,
59 crate::middle::exported_symbols::SymbolExportInfo,
60 crate::middle::resolve_lifetime::ObjectLifetimeDefault,
61 crate::mir::ConstQualifs,
62 ty::AssocItemContainer,
63 ty::DeducedParamAttrs,
68 ty::Visibility<DefIndex>,
69 ty::adjustment::CoerceUnsizedInfo,
70 ty::fast_reject::SimplifiedTypeGen<DefId>,
73 rustc_attr::ConstStability,
74 rustc_attr::DefaultBodyStability,
75 rustc_attr::Deprecation,
76 rustc_attr::Stability,
78 rustc_hir::Defaultness,
79 rustc_hir::GeneratorKind,
82 rustc_hir::def::DefKind,
83 rustc_hir::def_id::DefIndex,
84 rustc_hir::definitions::DefKey,
85 rustc_index::bit_set::BitSet<u32>,
86 rustc_index::bit_set::FiniteBitSet<u32>,
87 rustc_session::cstore::ForeignModule,
88 rustc_session::cstore::LinkagePreference,
89 rustc_session::cstore::NativeLib,
90 rustc_span::DebuggerVisualizerFile,
94 rustc_span::SourceFile,
97 rustc_span::def_id::DefPathHash,
98 rustc_span::hygiene::SyntaxContextData,
99 rustc_span::symbol::Ident,
100 rustc_type_ir::Variance,
103 // HACK(compiler-errors): This macro rule can only take an ident,
104 // not a path, due to parsing ambiguity reasons. That means we gotta
105 // import all of these types above.
107 macro_rules! parameterized_over_tcx {
108 ($($ident:ident),+ $(,)?) => {
110 impl $crate::ty::ParameterizedOverTcx for $ident<'static> {
111 type Value<'tcx> = $ident<'tcx>;
117 parameterized_over_tcx! {
125 GeneratorDiagnosticData,