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             [decode] tables: rustc_middle::ty::TypeckTables<$tcx>, rustc_middle::ty::TypeckTables<'_x>;
  18             [] const_allocs: rustc_middle::mir::interpret::Allocation, rustc_middle::mir::interpret::Allocation;
  19             // Required for the incremental on-disk cache
  20             [few, decode] mir_keys: rustc_hir::def_id::DefIdSet, rustc_hir::def_id::DefIdSet;
  21             [] region_scope_tree: rustc_middle::middle::region::ScopeTree, rustc_middle::middle::region::ScopeTree;
  22             [] dropck_outlives:
  23                 rustc_middle::infer::canonical::Canonical<'tcx,
  24                     rustc_middle::infer::canonical::QueryResponse<'tcx,
  25                         rustc_middle::traits::query::DropckOutlivesResult<'tcx>
  26                     >
  27                 >,
  28                 rustc_middle::infer::canonical::Canonical<'_x,
  29                     rustc_middle::infer::canonical::QueryResponse<'_y,
  30                         rustc_middle::traits::query::DropckOutlivesResult<'_z>
  31                     >
  32                 >;
  33             [] normalize_projection_ty:
  34                 rustc_middle::infer::canonical::Canonical<'tcx,
  35                     rustc_middle::infer::canonical::QueryResponse<'tcx,
  36                         rustc_middle::traits::query::NormalizationResult<'tcx>
  37                     >
  38                 >,
  39                 rustc_middle::infer::canonical::Canonical<'_x,
  40                     rustc_middle::infer::canonical::QueryResponse<'_y,
  41                         rustc_middle::traits::query::NormalizationResult<'_z>
  42                     >
  43                 >;
  44             [] implied_outlives_bounds:
  45                 rustc_middle::infer::canonical::Canonical<'tcx,
  46                     rustc_middle::infer::canonical::QueryResponse<'tcx,
  47                         Vec<rustc_middle::traits::query::OutlivesBound<'tcx>>
  48                     >
  49                 >,
  50                 rustc_middle::infer::canonical::Canonical<'_x,
  51                     rustc_middle::infer::canonical::QueryResponse<'_y,
  52                         Vec<rustc_middle::traits::query::OutlivesBound<'_z>>
  53                     >
  54                 >;
  55             [] type_op_subtype:
  56                 rustc_middle::infer::canonical::Canonical<'tcx,
  57                     rustc_middle::infer::canonical::QueryResponse<'tcx, ()>
  58                 >,
  59                 rustc_middle::infer::canonical::Canonical<'_x,
  60                     rustc_middle::infer::canonical::QueryResponse<'_y, ()>
  61                 >;
  62             [] type_op_normalize_poly_fn_sig:
  63                 rustc_middle::infer::canonical::Canonical<'tcx,
  64                     rustc_middle::infer::canonical::QueryResponse<'tcx, rustc_middle::ty::PolyFnSig<'tcx>>
  65                 >,
  66                 rustc_middle::infer::canonical::Canonical<'_x,
  67                     rustc_middle::infer::canonical::QueryResponse<'_y, rustc_middle::ty::PolyFnSig<'_z>>
  68                 >;
  69             [] type_op_normalize_fn_sig:
  70                 rustc_middle::infer::canonical::Canonical<'tcx,
  71                     rustc_middle::infer::canonical::QueryResponse<'tcx, rustc_middle::ty::FnSig<'tcx>>
  72                 >,
  73                 rustc_middle::infer::canonical::Canonical<'_x,
  74                     rustc_middle::infer::canonical::QueryResponse<'_y, rustc_middle::ty::FnSig<'_z>>
  75                 >;
  76             [] type_op_normalize_predicate:
  77                 rustc_middle::infer::canonical::Canonical<'tcx,
  78                     rustc_middle::infer::canonical::QueryResponse<'tcx, rustc_middle::ty::Predicate<'tcx>>
  79                 >,
  80                 rustc_middle::infer::canonical::Canonical<'_x,
  81                     rustc_middle::infer::canonical::QueryResponse<'_y, rustc_middle::ty::Predicate<'_z>>
  82                 >;
  83             [] type_op_normalize_ty:
  84                 rustc_middle::infer::canonical::Canonical<'tcx,
  85                     rustc_middle::infer::canonical::QueryResponse<'tcx, rustc_middle::ty::Ty<'tcx>>
  86                 >,
  87                 rustc_middle::infer::canonical::Canonical<'_x,
  88                     rustc_middle::infer::canonical::QueryResponse<'_y, &'_z rustc_middle::ty::TyS<'_w>>
  89                 >;
  90             [few] all_traits: Vec<rustc_hir::def_id::DefId>, Vec<rustc_hir::def_id::DefId>;
  91             [few] privacy_access_levels: rustc_middle::middle::privacy::AccessLevels, rustc_middle::middle::privacy::AccessLevels;
  92             [few] foreign_module: rustc_middle::middle::cstore::ForeignModule, rustc_middle::middle::cstore::ForeignModule;
  93             [few] foreign_modules: Vec<rustc_middle::middle::cstore::ForeignModule>, Vec<rustc_middle::middle::cstore::ForeignModule>;
  94             [] upvars_mentioned: rustc_data_structures::fx::FxIndexMap<rustc_hir::HirId, rustc_hir::Upvar>, rustc_data_structures::fx::FxIndexMap<rustc_hir::HirId, rustc_hir::Upvar>;
  95             [] object_safety_violations: rustc_middle::traits::ObjectSafetyViolation, rustc_middle::traits::ObjectSafetyViolation;
  96             [] codegen_unit: rustc_middle::mir::mono::CodegenUnit<$tcx>, rustc_middle::mir::mono::CodegenUnit<'_x>;
  97             [] attribute: rustc_ast::ast::Attribute, rustc_ast::ast::Attribute;
  98             [] name_set: rustc_data_structures::fx::FxHashSet<rustc_span::symbol::Symbol>, rustc_data_structures::fx::FxHashSet<rustc_span::symbol::Symbol>;
  99             [] hir_id_set: rustc_hir::HirIdSet, rustc_hir::HirIdSet;
 100
 101             // Interned types
 102             [] tys: rustc_middle::ty::TyS<$tcx>, rustc_middle::ty::TyS<'_x>;
 103             [] predicates: rustc_middle::ty::PredicateInner<$tcx>, rustc_middle::ty::PredicateInner<'_x>;
 104
 105             // HIR query types
 106             [few] indexed_hir: rustc_middle::hir::map::IndexedHir<$tcx>, rustc_middle::hir::map::IndexedHir<'_x>;
 107             [few] hir_definitions: rustc_hir::definitions::Definitions, rustc_hir::definitions::Definitions;
 108             [] hir_owner: rustc_middle::hir::Owner<$tcx>, rustc_middle::hir::Owner<'_x>;
 109             [] hir_owner_nodes: rustc_middle::hir::OwnerNodes<$tcx>, rustc_middle::hir::OwnerNodes<'_x>;
 110
 111             // Note that this deliberately duplicates items in the `rustc_hir::arena`,
 112             // since we need to allocate this type on both the `rustc_hir` arena
 113             // (during lowering) and the `librustc_middle` arena (for decoding MIR)
 114             [decode] asm_template: rustc_ast::ast::InlineAsmTemplatePiece, rustc_ast::ast::InlineAsmTemplatePiece;
 115
 116             // This is used to decode the &'tcx [Span] for InlineAsm's line_spans.
 117             [decode] span: rustc_span::Span, rustc_span::Span;
 118             [decode] used_trait_imports: rustc_data_structures::fx::FxHashSet<rustc_hir::def_id::LocalDefId>, rustc_data_structures::fx::FxHashSet<rustc_hir::def_id::LocalDefId>;
 119         ], $tcx);
 120     )
 121 }
 122
 123 arena_types!(rustc_arena::declare_arena, [], 'tcx);