src/librustc_hir/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]`,
   9 /// where `T` is the type 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             // HIR types
  15             [few] hir_krate: rustc_hir::Crate<$tcx>, rustc_hir::Crate<'_x>;
  16             [] arm: rustc_hir::Arm<$tcx>, rustc_hir::Arm<'_x>;
  17             [] asm_operand: rustc_hir::InlineAsmOperand<$tcx>, rustc_hir::InlineAsmOperand<'_x>;
  18             [] asm_template: rustc_ast::ast::InlineAsmTemplatePiece, rustc_ast::ast::InlineAsmTemplatePiece;
  19             [] attribute: rustc_ast::ast::Attribute, rustc_ast::ast::Attribute;
  20             [] block: rustc_hir::Block<$tcx>, rustc_hir::Block<'_x>;
  21             [] bare_fn_ty: rustc_hir::BareFnTy<$tcx>, rustc_hir::BareFnTy<'_x>;
  22             [few] global_asm: rustc_hir::GlobalAsm, rustc_hir::GlobalAsm;
  23             [] generic_arg: rustc_hir::GenericArg<$tcx>, rustc_hir::GenericArg<'_x>;
  24             [] generic_args: rustc_hir::GenericArgs<$tcx>, rustc_hir::GenericArgs<'_x>;
  25             [] generic_bound: rustc_hir::GenericBound<$tcx>, rustc_hir::GenericBound<'_x>;
  26             [] generic_param: rustc_hir::GenericParam<$tcx>, rustc_hir::GenericParam<'_x>;
  27             [] expr: rustc_hir::Expr<$tcx>, rustc_hir::Expr<'_x>;
  28             [] field: rustc_hir::Field<$tcx>, rustc_hir::Field<'_x>;
  29             [] field_pat: rustc_hir::FieldPat<$tcx>, rustc_hir::FieldPat<'_x>;
  30             [] fn_decl: rustc_hir::FnDecl<$tcx>, rustc_hir::FnDecl<'_x>;
  31             [] foreign_item: rustc_hir::ForeignItem<$tcx>, rustc_hir::ForeignItem<'_x>;
  32             [] impl_item_ref: rustc_hir::ImplItemRef<$tcx>, rustc_hir::ImplItemRef<'_x>;
  33             [few] inline_asm: rustc_hir::InlineAsm<$tcx>, rustc_hir::InlineAsm<'_x>;
  34             [few] llvm_inline_asm: rustc_hir::LlvmInlineAsm<$tcx>, rustc_hir::LlvmInlineAsm<'_x>;
  35             [] local: rustc_hir::Local<$tcx>, rustc_hir::Local<'_x>;
  36             [few] macro_def: rustc_hir::MacroDef<$tcx>, rustc_hir::MacroDef<'_x>;
  37             [] param: rustc_hir::Param<$tcx>, rustc_hir::Param<'_x>;
  38             [] pat: rustc_hir::Pat<$tcx>, rustc_hir::Pat<'_x>;
  39             [] path: rustc_hir::Path<$tcx>, rustc_hir::Path<'_x>;
  40             [] path_segment: rustc_hir::PathSegment<$tcx>, rustc_hir::PathSegment<'_x>;
  41             [] poly_trait_ref: rustc_hir::PolyTraitRef<$tcx>, rustc_hir::PolyTraitRef<'_x>;
  42             [] qpath: rustc_hir::QPath<$tcx>, rustc_hir::QPath<'_x>;
  43             [] stmt: rustc_hir::Stmt<$tcx>, rustc_hir::Stmt<'_x>;
  44             [] struct_field: rustc_hir::StructField<$tcx>, rustc_hir::StructField<'_x>;
  45             [] trait_item_ref: rustc_hir::TraitItemRef, rustc_hir::TraitItemRef;
  46             [] ty: rustc_hir::Ty<$tcx>, rustc_hir::Ty<'_x>;
  47             [] type_binding: rustc_hir::TypeBinding<$tcx>, rustc_hir::TypeBinding<'_x>;
  48             [] variant: rustc_hir::Variant<$tcx>, rustc_hir::Variant<'_x>;
  49             [] where_predicate: rustc_hir::WherePredicate<$tcx>, rustc_hir::WherePredicate<'_x>;
  50         ], $tcx);
  51     )
  52 }