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rustc_index: Add a ZERO constant to index types

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It is commonly used.
This commit is contained in:
Vadim Petrochenkov 2024-04-03 17:49:59 +03:00
parent ceab6128fa
commit b40ea03f8a
42 changed files with 80 additions and 90 deletions
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10
compiler/rustc_mir_dataflow/src/elaborate_drops.rs
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@ -420,14 +420,14 @@ where
) -> BasicBlock {
// drop glue is sent straight to codegen
// box cannot be directly dereferenced
let unique_ty = adt.non_enum_variant().fields[FieldIdx::new(0)].ty(self.tcx(), args);
let unique_ty = adt.non_enum_variant().fields[FieldIdx::ZERO].ty(self.tcx(), args);
let unique_variant = unique_ty.ty_adt_def().unwrap().non_enum_variant();
let nonnull_ty = unique_variant.fields[FieldIdx::from_u32(0)].ty(self.tcx(), args);
let nonnull_ty = unique_variant.fields[FieldIdx::ZERO].ty(self.tcx(), args);
let ptr_ty = Ty::new_imm_ptr(self.tcx(), args[0].expect_ty());
let unique_place = self.tcx().mk_place_field(self.place, FieldIdx::new(0), unique_ty);
let nonnull_place = self.tcx().mk_place_field(unique_place, FieldIdx::new(0), nonnull_ty);
let ptr_place = self.tcx().mk_place_field(nonnull_place, FieldIdx::new(0), ptr_ty);
let unique_place = self.tcx().mk_place_field(self.place, FieldIdx::ZERO, unique_ty);
let nonnull_place = self.tcx().mk_place_field(unique_place, FieldIdx::ZERO, nonnull_ty);
let ptr_place = self.tcx().mk_place_field(nonnull_place, FieldIdx::ZERO, ptr_ty);
let interior = self.tcx().mk_place_deref(ptr_place);
let interior_path = self.elaborator.deref_subpath(self.path);