rustc_metadata/rmeta/
parameterized.rs

1use std::hash::Hash;
2
3use rustc_data_structures::unord::UnordMap;
4use rustc_hir::def_id::DefIndex;
5use rustc_index::{Idx, IndexVec};
6use rustc_middle::ty::{Binder, EarlyBinder};
7use rustc_span::Symbol;
8
9use crate::rmeta::{LazyArray, LazyTable, LazyValue};
10
11pub(crate) trait ParameterizedOverTcx: 'static {
12    type Value<'tcx>;
13}
14
15impl<T: ParameterizedOverTcx> ParameterizedOverTcx for Option<T> {
16    type Value<'tcx> = Option<T::Value<'tcx>>;
17}
18
19impl<A: ParameterizedOverTcx, B: ParameterizedOverTcx> ParameterizedOverTcx for (A, B) {
20    type Value<'tcx> = (A::Value<'tcx>, B::Value<'tcx>);
21}
22
23impl<T: ParameterizedOverTcx> ParameterizedOverTcx for Vec<T> {
24    type Value<'tcx> = Vec<T::Value<'tcx>>;
25}
26
27impl<I: Idx + 'static, T: ParameterizedOverTcx> ParameterizedOverTcx for IndexVec<I, T> {
28    type Value<'tcx> = IndexVec<I, T::Value<'tcx>>;
29}
30
31impl<I: Hash + Eq + 'static, T: ParameterizedOverTcx> ParameterizedOverTcx for UnordMap<I, T> {
32    type Value<'tcx> = UnordMap<I, T::Value<'tcx>>;
33}
34
35impl<T: ParameterizedOverTcx> ParameterizedOverTcx for Binder<'static, T> {
36    type Value<'tcx> = Binder<'tcx, T::Value<'tcx>>;
37}
38
39impl<T: ParameterizedOverTcx> ParameterizedOverTcx for EarlyBinder<'static, T> {
40    type Value<'tcx> = EarlyBinder<'tcx, T::Value<'tcx>>;
41}
42
43impl<T: ParameterizedOverTcx> ParameterizedOverTcx for LazyValue<T> {
44    type Value<'tcx> = LazyValue<T::Value<'tcx>>;
45}
46
47impl<T: ParameterizedOverTcx> ParameterizedOverTcx for LazyArray<T> {
48    type Value<'tcx> = LazyArray<T::Value<'tcx>>;
49}
50
51impl<I: 'static, T: ParameterizedOverTcx> ParameterizedOverTcx for LazyTable<I, T> {
52    type Value<'tcx> = LazyTable<I, T::Value<'tcx>>;
53}
54
55macro_rules! trivially_parameterized_over_tcx {
56    ($($ty:ty),+ $(,)?) => {
57        $(
58            impl ParameterizedOverTcx for $ty {
59                #[allow(unused_lifetimes)]
60                type Value<'tcx> = $ty;
61            }
62        )*
63    }
64}
65
66trivially_parameterized_over_tcx! {
67    bool,
68    u64,
69    usize,
70    std::string::String,
71    // tidy-alphabetical-start
72    crate::rmeta::AttrFlags,
73    crate::rmeta::CrateDep,
74    crate::rmeta::CrateHeader,
75    crate::rmeta::CrateRoot,
76    crate::rmeta::IncoherentImpls,
77    crate::rmeta::RawDefId,
78    crate::rmeta::TraitImpls,
79    crate::rmeta::VariantData,
80    rustc_abi::ReprOptions,
81    rustc_ast::DelimArgs,
82    rustc_hir::Attribute,
83    rustc_hir::ConstStability,
84    rustc_hir::Constness,
85    rustc_hir::CoroutineKind,
86    rustc_hir::DefaultBodyStability,
87    rustc_hir::Defaultness,
88    rustc_hir::LangItem,
89    rustc_hir::OpaqueTyOrigin<rustc_hir::def_id::DefId>,
90    rustc_hir::PreciseCapturingArgKind<Symbol, Symbol>,
91    rustc_hir::Safety,
92    rustc_hir::Stability,
93    rustc_hir::attrs::Deprecation,
94    rustc_hir::attrs::StrippedCfgItem<rustc_hir::def_id::DefIndex>,
95    rustc_hir::def::DefKind,
96    rustc_hir::def::DocLinkResMap,
97    rustc_hir::def_id::DefId,
98    rustc_hir::def_id::DefIndex,
99    rustc_hir::definitions::DefKey,
100    rustc_index::bit_set::DenseBitSet<u32>,
101    rustc_middle::metadata::ModChild,
102    rustc_middle::middle::codegen_fn_attrs::CodegenFnAttrs,
103    rustc_middle::middle::debugger_visualizer::DebuggerVisualizerFile,
104    rustc_middle::middle::exported_symbols::SymbolExportInfo,
105    rustc_middle::middle::lib_features::FeatureStability,
106    rustc_middle::middle::resolve_bound_vars::ObjectLifetimeDefault,
107    rustc_middle::mir::ConstQualifs,
108    rustc_middle::ty::AnonConstKind,
109    rustc_middle::ty::AssocItemContainer,
110    rustc_middle::ty::AsyncDestructor,
111    rustc_middle::ty::Asyncness,
112    rustc_middle::ty::DeducedParamAttrs,
113    rustc_middle::ty::Destructor,
114    rustc_middle::ty::Generics,
115    rustc_middle::ty::ImplTraitInTraitData,
116    rustc_middle::ty::IntrinsicDef,
117    rustc_middle::ty::TraitDef,
118    rustc_middle::ty::Variance,
119    rustc_middle::ty::Visibility<DefIndex>,
120    rustc_middle::ty::adjustment::CoerceUnsizedInfo,
121    rustc_middle::ty::fast_reject::SimplifiedType,
122    rustc_session::config::TargetModifier,
123    rustc_session::cstore::ForeignModule,
124    rustc_session::cstore::LinkagePreference,
125    rustc_session::cstore::NativeLib,
126    rustc_span::ExpnData,
127    rustc_span::ExpnHash,
128    rustc_span::ExpnId,
129    rustc_span::Ident,
130    rustc_span::SourceFile,
131    rustc_span::Span,
132    rustc_span::Symbol,
133    rustc_span::hygiene::SyntaxContextKey,
134    // tidy-alphabetical-end
135}
136
137// HACK(compiler-errors): This macro rule can only take a fake path,
138// not a real, due to parsing ambiguity reasons.
139macro_rules! parameterized_over_tcx {
140    ($($( $fake_path:ident )::+ ),+ $(,)?) => {
141        $(
142            impl ParameterizedOverTcx for $( $fake_path )::+ <'static> {
143                type Value<'tcx> = $( $fake_path )::+ <'tcx>;
144            }
145        )*
146    }
147}
148
149parameterized_over_tcx! {
150    // tidy-alphabetical-start
151    crate::rmeta::DefPathHashMapRef,
152    rustc_middle::middle::exported_symbols::ExportedSymbol,
153    rustc_middle::mir::Body,
154    rustc_middle::mir::CoroutineLayout,
155    rustc_middle::mir::interpret::ConstAllocation,
156    rustc_middle::ty::Clause,
157    rustc_middle::ty::ClauseKind,
158    rustc_middle::ty::Const,
159    rustc_middle::ty::ConstConditions,
160    rustc_middle::ty::FnSig,
161    rustc_middle::ty::GenericPredicates,
162    rustc_middle::ty::ImplTraitHeader,
163    rustc_middle::ty::TraitRef,
164    rustc_middle::ty::Ty,
165    // tidy-alphabetical-end
166}
rustc_metadata/rmeta/parameterized.rs

rustc_metadata/rmeta/
parameterized.rs
