1
Fork 0

Rename adjustment::PointerCast and variants using it to PointerCoercion

It makes it sound like the `ExprKind` and `Rvalue` are supposed to represent all pointer related
casts, when in reality their just used to share a some enum variants. Make it clear there these
are only coercion to make it clear why only some pointer related "casts" are in the enum.
This commit is contained in:
Nilstrieb 2023-07-05 20:07:03 +02:00
parent 8c70e522ad
commit b5ac726ed3
3 changed files with 9 additions and 9 deletions

View file

@ -9,7 +9,7 @@ use rustc_hir::{
Body, Expr, ExprKind, GenericArg, Impl, ImplItemKind, Item, ItemKind, Node, PathSegment, QPath, TyKind,
};
use rustc_lint::{LateContext, LateLintPass};
use rustc_middle::ty::adjustment::{Adjust, PointerCast};
use rustc_middle::ty::adjustment::{Adjust, PointerCoercion};
use rustc_middle::ty::{self, Adt, AdtDef, SubstsRef, Ty, TypeckResults};
use rustc_session::{declare_tool_lint, impl_lint_pass};
use rustc_span::sym;
@ -116,7 +116,7 @@ fn check_struct<'tcx>(
let is_default_without_adjusts = |expr| {
is_default_equivalent(cx, expr)
&& typeck_results.expr_adjustments(expr).iter().all(|adj| {
!matches!(adj.kind, Adjust::Pointer(PointerCast::Unsize)
!matches!(adj.kind, Adjust::Pointer(PointerCoercion::Unsize)
if contains_trait_object(adj.target))
})
};

View file

@ -14,7 +14,7 @@ use rustc_hir as hir;
use rustc_hir::intravisit::FnKind;
use rustc_hir::{BindingAnnotation, Body, FnDecl, Impl, ItemKind, MutTy, Mutability, Node, PatKind};
use rustc_lint::{LateContext, LateLintPass};
use rustc_middle::ty::adjustment::{Adjust, PointerCast};
use rustc_middle::ty::adjustment::{Adjust, PointerCoercion};
use rustc_middle::ty::layout::LayoutOf;
use rustc_middle::ty::{self, RegionKind};
use rustc_session::{declare_tool_lint, impl_lint_pass};
@ -195,7 +195,7 @@ impl<'tcx> PassByRefOrValue {
.adjustments()
.items()
.flat_map(|(_, a)| a)
.any(|a| matches!(a.kind, Adjust::Pointer(PointerCast::UnsafeFnPointer)))
.any(|a| matches!(a.kind, Adjust::Pointer(PointerCoercion::UnsafeFnPointer)))
{
continue;
}

View file

@ -16,7 +16,7 @@ use rustc_middle::mir::{
};
use rustc_middle::traits::{ImplSource, ObligationCause};
use rustc_middle::ty::subst::GenericArgKind;
use rustc_middle::ty::{self, adjustment::PointerCast, Ty, TyCtxt};
use rustc_middle::ty::{self, adjustment::PointerCoercion, Ty, TyCtxt};
use rustc_middle::ty::{BoundConstness, TraitRef};
use rustc_semver::RustcVersion;
use rustc_span::symbol::sym;
@ -119,18 +119,18 @@ fn check_rvalue<'tcx>(
| CastKind::FloatToFloat
| CastKind::FnPtrToPtr
| CastKind::PtrToPtr
| CastKind::Pointer(PointerCast::MutToConstPointer | PointerCast::ArrayToPointer),
| CastKind::PointerCoercion(PointerCoercion::MutToConstPointer | PointerCoercion::ArrayToPointer),
operand,
_,
) => check_operand(tcx, operand, span, body),
Rvalue::Cast(
CastKind::Pointer(
PointerCast::UnsafeFnPointer | PointerCast::ClosureFnPointer(_) | PointerCast::ReifyFnPointer,
CastKind::PointerCoercion(
PointerCoercion::UnsafeFnPointer | PointerCoercion::ClosureFnPointer(_) | PointerCoercion::ReifyFnPointer,
),
_,
_,
) => Err((span, "function pointer casts are not allowed in const fn".into())),
Rvalue::Cast(CastKind::Pointer(PointerCast::Unsize), op, cast_ty) => {
Rvalue::Cast(CastKind::PointerCoercion(PointerCoercion::Unsize), op, cast_ty) => {
let pointee_ty = if let Some(deref_ty) = cast_ty.builtin_deref(true) {
deref_ty.ty
} else {