src/librustc_middle/arena.rs

   1 /// This declares a list of types which can be allocated by `Arena`.
   2 ///
   3 /// The `few` modifier will cause allocation to use the shared arena and recording the destructor.
   4 /// This is faster and more memory efficient if there's only a few allocations of the type.
   5 /// Leaving `few` out will cause the type to get its own dedicated `TypedArena` which is
   6 /// faster and more memory efficient if there is lots of allocations.
   7 ///
   8 /// Specifying the `decode` modifier will add decode impls for `&T` and `&[T]` where `T` is the type
   9 /// listed. These impls will appear in the implement_ty_decoder! macro.
  10 #[macro_export]
  11 macro_rules! arena_types {
  12     ($macro:path, $args:tt, $tcx:lifetime) => (
  13         $macro!($args, [
  14             [] layouts: rustc_target::abi::Layout, rustc_target::abi::Layout;
  15             // AdtDef are interned and compared by address
  16             [] adt_def: rustc_middle::ty::AdtDef, rustc_middle::ty::AdtDef;
  17             [] steal_mir:
  18                 rustc_middle::ty::steal::Steal<rustc_middle::mir::Body<$tcx>>,
  19                 rustc_middle::ty::steal::Steal<rustc_middle::mir::Body<$tcx>>;
  20             [] mir: rustc_middle::mir::Body<$tcx>, rustc_middle::mir::Body<$tcx>;
  21             [] steal_promoted:
  22                 rustc_middle::ty::steal::Steal<
  23                     rustc_index::vec::IndexVec<
  24                         rustc_middle::mir::Promoted,
  25                         rustc_middle::mir::Body<$tcx>
  26                     >
  27                 >,
  28                 rustc_middle::ty::steal::Steal<
  29                     rustc_index::vec::IndexVec<
  30                         rustc_middle::mir::Promoted,
  31                         rustc_middle::mir::Body<$tcx>
  32                     >
  33                 >;
  34             [decode] tables: rustc_middle::ty::TypeckTables<$tcx>, rustc_middle::ty::TypeckTables<'_x>;
  35             [decode] borrowck_result:
  36                 rustc_middle::mir::BorrowCheckResult<$tcx>,
  37                 rustc_middle::mir::BorrowCheckResult<'_x>;
  38             [] const_allocs: rustc_middle::mir::interpret::Allocation, rustc_middle::mir::interpret::Allocation;
  39             // Required for the incremental on-disk cache
  40             [few, decode] mir_keys: rustc_hir::def_id::DefIdSet, rustc_hir::def_id::DefIdSet;
  41             [] region_scope_tree: rustc_middle::middle::region::ScopeTree, rustc_middle::middle::region::ScopeTree;
  42             [] dropck_outlives:
  43                 rustc_middle::infer::canonical::Canonical<'tcx,
  44                     rustc_middle::infer::canonical::QueryResponse<'tcx,
  45                         rustc_middle::traits::query::DropckOutlivesResult<'tcx>
  46                     >
  47                 >,
  48                 rustc_middle::infer::canonical::Canonical<'_x,
  49                     rustc_middle::infer::canonical::QueryResponse<'_y,
  50                         rustc_middle::traits::query::DropckOutlivesResult<'_z>
  51                     >
  52                 >;
  53             [] normalize_projection_ty:
  54                 rustc_middle::infer::canonical::Canonical<'tcx,
  55                     rustc_middle::infer::canonical::QueryResponse<'tcx,
  56                         rustc_middle::traits::query::NormalizationResult<'tcx>
  57                     >
  58                 >,
  59                 rustc_middle::infer::canonical::Canonical<'_x,
  60                     rustc_middle::infer::canonical::QueryResponse<'_y,
  61                         rustc_middle::traits::query::NormalizationResult<'_z>
  62                     >
  63                 >;
  64             [] implied_outlives_bounds:
  65                 rustc_middle::infer::canonical::Canonical<'tcx,
  66                     rustc_middle::infer::canonical::QueryResponse<'tcx,
  67                         Vec<rustc_middle::traits::query::OutlivesBound<'tcx>>
  68                     >
  69                 >,
  70                 rustc_middle::infer::canonical::Canonical<'_x,
  71                     rustc_middle::infer::canonical::QueryResponse<'_y,
  72                         Vec<rustc_middle::traits::query::OutlivesBound<'_z>>
  73                     >
  74                 >;
  75             [] type_op_subtype:
  76                 rustc_middle::infer::canonical::Canonical<'tcx,
  77                     rustc_middle::infer::canonical::QueryResponse<'tcx, ()>
  78                 >,
  79                 rustc_middle::infer::canonical::Canonical<'_x,
  80                     rustc_middle::infer::canonical::QueryResponse<'_y, ()>
  81                 >;
  82             [] type_op_normalize_poly_fn_sig:
  83                 rustc_middle::infer::canonical::Canonical<'tcx,
  84                     rustc_middle::infer::canonical::QueryResponse<'tcx, rustc_middle::ty::PolyFnSig<'tcx>>
  85                 >,
  86                 rustc_middle::infer::canonical::Canonical<'_x,
  87                     rustc_middle::infer::canonical::QueryResponse<'_y, rustc_middle::ty::PolyFnSig<'_z>>
  88                 >;
  89             [] type_op_normalize_fn_sig:
  90                 rustc_middle::infer::canonical::Canonical<'tcx,
  91                     rustc_middle::infer::canonical::QueryResponse<'tcx, rustc_middle::ty::FnSig<'tcx>>
  92                 >,
  93                 rustc_middle::infer::canonical::Canonical<'_x,
  94                     rustc_middle::infer::canonical::QueryResponse<'_y, rustc_middle::ty::FnSig<'_z>>
  95                 >;
  96             [] type_op_normalize_predicate:
  97                 rustc_middle::infer::canonical::Canonical<'tcx,
  98                     rustc_middle::infer::canonical::QueryResponse<'tcx, rustc_middle::ty::Predicate<'tcx>>
  99                 >,
 100                 rustc_middle::infer::canonical::Canonical<'_x,
 101                     rustc_middle::infer::canonical::QueryResponse<'_y, rustc_middle::ty::Predicate<'_z>>
 102                 >;
 103             [] type_op_normalize_ty:
 104                 rustc_middle::infer::canonical::Canonical<'tcx,
 105                     rustc_middle::infer::canonical::QueryResponse<'tcx, rustc_middle::ty::Ty<'tcx>>
 106                 >,
 107                 rustc_middle::infer::canonical::Canonical<'_x,
 108                     rustc_middle::infer::canonical::QueryResponse<'_y, &'_z rustc_middle::ty::TyS<'_w>>
 109                 >;
 110             [few] all_traits: Vec<rustc_hir::def_id::DefId>, Vec<rustc_hir::def_id::DefId>;
 111             [few] privacy_access_levels: rustc_middle::middle::privacy::AccessLevels, rustc_middle::middle::privacy::AccessLevels;
 112             [few] foreign_module: rustc_middle::middle::cstore::ForeignModule, rustc_middle::middle::cstore::ForeignModule;
 113             [few] foreign_modules: Vec<rustc_middle::middle::cstore::ForeignModule>, Vec<rustc_middle::middle::cstore::ForeignModule>;
 114             [] upvars_mentioned: rustc_data_structures::fx::FxIndexMap<rustc_hir::HirId, rustc_hir::Upvar>, rustc_data_structures::fx::FxIndexMap<rustc_hir::HirId, rustc_hir::Upvar>;
 115             [] object_safety_violations: rustc_middle::traits::ObjectSafetyViolation, rustc_middle::traits::ObjectSafetyViolation;
 116             [] codegen_unit: rustc_middle::mir::mono::CodegenUnit<$tcx>, rustc_middle::mir::mono::CodegenUnit<'_x>;
 117             [] attribute: rustc_ast::ast::Attribute, rustc_ast::ast::Attribute;
 118             [] name_set: rustc_data_structures::fx::FxHashSet<rustc_span::symbol::Symbol>, rustc_data_structures::fx::FxHashSet<rustc_span::symbol::Symbol>;
 119             [] hir_id_set: rustc_hir::HirIdSet, rustc_hir::HirIdSet;
 120
 121             // Interned types
 122             [] tys: rustc_middle::ty::TyS<$tcx>, rustc_middle::ty::TyS<'_x>;
 123             [] predicates: rustc_middle::ty::PredicateInner<$tcx>, rustc_middle::ty::PredicateInner<'_x>;
 124
 125             // HIR query types
 126             [few] indexed_hir: rustc_middle::hir::map::IndexedHir<$tcx>, rustc_middle::hir::map::IndexedHir<'_x>;
 127             [few] hir_definitions: rustc_hir::definitions::Definitions, rustc_hir::definitions::Definitions;
 128             [] hir_owner: rustc_middle::hir::Owner<$tcx>, rustc_middle::hir::Owner<'_x>;
 129             [] hir_owner_nodes: rustc_middle::hir::OwnerNodes<$tcx>, rustc_middle::hir::OwnerNodes<'_x>;
 130
 131             // Note that this deliberately duplicates items in the `rustc_hir::arena`,
 132             // since we need to allocate this type on both the `rustc_hir` arena
 133             // (during lowering) and the `librustc_middle` arena (for decoding MIR)
 134             [decode] asm_template: rustc_ast::ast::InlineAsmTemplatePiece, rustc_ast::ast::InlineAsmTemplatePiece;
 135
 136             // This is used to decode the &'tcx [Span] for InlineAsm's line_spans.
 137             [decode] span: rustc_span::Span, rustc_span::Span;
 138             [decode] used_trait_imports: rustc_data_structures::fx::FxHashSet<rustc_hir::def_id::LocalDefId>, rustc_data_structures::fx::FxHashSet<rustc_hir::def_id::LocalDefId>;
 139         ], $tcx);
 140     )
 141 }
 142
 143 arena_types!(rustc_arena::declare_arena, [], 'tcx);