bjoernager/rust
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dyn* through more typechecking and MIR

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This commit is contained in:
Eric Holk 2022-06-28 14:02:30 -07:00
parent 7fccac3ea0
commit 549c105bb3
15 changed files with 168 additions and 13 deletions
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5
compiler/rustc_mir_build/src/build/expr/as_rvalue.rs
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@ -216,6 +216,10 @@ impl<'a, 'tcx> Builder<'a, 'tcx> {
};
let from_ty = CastTy::from_ty(ty);
let cast_ty = CastTy::from_ty(expr.ty);
debug!(
"ExprKind::Cast from_ty={from_ty:?}, cast_ty={:?}/{cast_ty:?}",
expr.ty,
);
let cast_kind = match (from_ty, cast_ty) {
(Some(CastTy::Ptr(_) | CastTy::FnPtr), Some(CastTy::Int(_))) => {
CastKind::PointerExposeAddress
@ -223,6 +227,7 @@ impl<'a, 'tcx> Builder<'a, 'tcx> {
(Some(CastTy::Int(_)), Some(CastTy::Ptr(_))) => {
CastKind::PointerFromExposedAddress
}
(_, Some(CastTy::DynStar)) => CastKind::DynStar,
(_, _) => CastKind::Misc,
};
block.and(Rvalue::Cast(cast_kind, source, expr.ty))