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Auto merge of #97287 - compiler-errors:type-interner, r=jackh726,oli-obk

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Move things to `rustc_type_ir`

Finishes some work proposed in https://github.com/rust-lang/compiler-team/issues/341.

r? `@ghost`
This commit is contained in:
bors 2022-05-29 08:20:13 +00:00
commit 0f06824013
45 changed files with 1742 additions and 640 deletions
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8
Cargo.lock
View File

@ -3676,6 +3676,7 @@ dependencies = [
"rustc_span",
"rustc_target",
"rustc_trait_selection",
"rustc_type_ir",
"tracing",
]
@ -3969,6 +3970,7 @@ dependencies = [
"rustc_span",
"rustc_target",
"rustc_trait_selection",
"rustc_type_ir",
"tracing",
"unicode-security",
]
@ -4041,6 +4043,7 @@ dependencies = [
"rustc_session",
"rustc_span",
"rustc_target",
"rustc_type_ir",
"smallvec",
"snap",
"tracing",
@ -4262,6 +4265,7 @@ dependencies = [
"rustc_serialize",
"rustc_session",
"rustc_span",
"rustc_type_ir",
"tracing",
]
@ -4283,6 +4287,7 @@ dependencies = [
"rustc_session",
"rustc_span",
"rustc_target",
"rustc_type_ir",
"smallvec",
"tracing",
]
@ -4472,6 +4477,7 @@ dependencies = [
"rustc_span",
"rustc_target",
"rustc_trait_selection",
"rustc_type_ir",
"tracing",
]
@ -4484,6 +4490,7 @@ dependencies = [
"rustc_index",
"rustc_macros",
"rustc_serialize",
"smallvec",
]
[[package]]
@ -4509,6 +4516,7 @@ dependencies = [
"rustc_target",
"rustc_trait_selection",
"rustc_ty_utils",
"rustc_type_ir",
"smallvec",
"tracing",
]

8
compiler/rustc_borrowck/src/lib.rs
View File

@ -98,7 +98,11 @@ struct Upvar<'tcx> {
by_ref: bool,
}
const DEREF_PROJECTION: &[PlaceElem<'_>; 1] = &[ProjectionElem::Deref];
/// Associate some local constants with the `'tcx` lifetime
struct TyCtxtConsts<'tcx>(TyCtxt<'tcx>);
impl<'tcx> TyCtxtConsts<'tcx> {
const DEREF_PROJECTION: &'tcx [PlaceElem<'tcx>; 1] = &[ProjectionElem::Deref];
}
pub fn provide(providers: &mut Providers) {
*providers = Providers {
@ -1443,7 +1447,7 @@ impl<'cx, 'tcx> MirBorrowckCtxt<'cx, 'tcx> {
// Thread-locals might be dropped after the function exits
// We have to dereference the outer reference because
// borrows don't conflict behind shared references.
root_place.projection = DEREF_PROJECTION;
root_place.projection = TyCtxtConsts::DEREF_PROJECTION;
(true, true)
} else {
(false, self.locals_are_invalidated_at_exit)

4
compiler/rustc_codegen_llvm/src/debuginfo/metadata.rs
View File

@ -33,7 +33,7 @@ use rustc_middle::mir::{self, GeneratorLayout};
use rustc_middle::ty::layout::LayoutOf;
use rustc_middle::ty::layout::TyAndLayout;
use rustc_middle::ty::subst::GenericArgKind;
use rustc_middle::ty::{self, AdtKind, Instance, ParamEnv, Ty, TyCtxt, COMMON_VTABLE_ENTRIES};
use rustc_middle::ty::{self, AdtKind, Instance, ParamEnv, Ty, TyCtxt};
use rustc_session::config::{self, DebugInfo};
use rustc_span::symbol::Symbol;
use rustc_span::FileName;
@ -1392,7 +1392,7 @@ fn build_vtable_type_di_node<'ll, 'tcx>(
tcx.vtable_entries(trait_ref)
} else {
COMMON_VTABLE_ENTRIES
TyCtxt::COMMON_VTABLE_ENTRIES
};
// All function pointers are described as opaque pointers. This could be improved in the future

1
compiler/rustc_const_eval/Cargo.toml
View File

@ -24,3 +24,4 @@ rustc_session = { path = "../rustc_session" }
rustc_target = { path = "../rustc_target" }
rustc_trait_selection = { path = "../rustc_trait_selection" }
rustc_span = { path = "../rustc_span" }
rustc_type_ir = { path = "../rustc_type_ir" }

6
compiler/rustc_const_eval/src/interpret/cast.rs
View File

@ -8,6 +8,7 @@ use rustc_middle::ty::adjustment::PointerCast;
use rustc_middle::ty::layout::{IntegerExt, LayoutOf, TyAndLayout};
use rustc_middle::ty::{self, FloatTy, Ty, TypeAndMut};
use rustc_target::abi::{Integer, Variants};
use rustc_type_ir::sty::TyKind::*;
use super::{
util::ensure_monomorphic_enough, FnVal, ImmTy, Immediate, InterpCx, Machine, OpTy, PlaceTy,
@ -102,7 +103,7 @@ impl<'mir, 'tcx: 'mir, M: Machine<'mir, 'tcx>> InterpCx<'mir, 'tcx, M> {
src: &ImmTy<'tcx, M::PointerTag>,
cast_ty: Ty<'tcx>,
) -> InterpResult<'tcx, Immediate<M::PointerTag>> {
use rustc_middle::ty::TyKind::*;
use rustc_type_ir::sty::TyKind::*;
trace!("Casting {:?}: {:?} to {:?}", *src, src.layout.ty, cast_ty);
match src.layout.ty.kind() {
@ -205,7 +206,6 @@ impl<'mir, 'tcx: 'mir, M: Machine<'mir, 'tcx>> InterpCx<'mir, 'tcx, M> {
let v = scalar.to_bits(src_layout.size)?;
let v = if signed { self.sign_extend(v, src_layout) } else { v };
trace!("cast_from_scalar: {}, {} -> {}", v, src_layout.ty, cast_ty);
use rustc_middle::ty::TyKind::*;
Ok(match *cast_ty.kind() {
Int(_) | Uint(_) => {
@ -247,7 +247,7 @@ impl<'mir, 'tcx: 'mir, M: Machine<'mir, 'tcx>> InterpCx<'mir, 'tcx, M> {
where
F: Float + Into<Scalar<M::PointerTag>> + FloatConvert<Single> + FloatConvert<Double>,
{
use rustc_middle::ty::TyKind::*;
use rustc_type_ir::sty::TyKind::*;
match *dest_ty.kind() {
// float -> uint
Uint(t) => {

10
compiler/rustc_const_eval/src/interpret/traits.rs
View File

@ -2,8 +2,8 @@ use std::convert::TryFrom;
use rustc_middle::mir::interpret::{InterpResult, Pointer, PointerArithmetic};
use rustc_middle::ty::{
self, Ty, COMMON_VTABLE_ENTRIES, COMMON_VTABLE_ENTRIES_ALIGN,
COMMON_VTABLE_ENTRIES_DROPINPLACE, COMMON_VTABLE_ENTRIES_SIZE,
self, Ty, TyCtxt, COMMON_VTABLE_ENTRIES_ALIGN, COMMON_VTABLE_ENTRIES_DROPINPLACE,
COMMON_VTABLE_ENTRIES_SIZE,
};
use rustc_target::abi::{Align, Size};
@ -38,7 +38,7 @@ impl<'mir, 'tcx: 'mir, M: Machine<'mir, 'tcx>> InterpCx<'mir, 'tcx, M> {
}
/// Resolves the function at the specified slot in the provided
/// vtable. Currently an index of '3' (`COMMON_VTABLE_ENTRIES.len()`)
/// vtable. Currently an index of '3' (`TyCtxt::COMMON_VTABLE_ENTRIES.len()`)
/// corresponds to the first method declared in the trait of the provided vtable.
pub fn get_vtable_slot(
&self,
@ -64,7 +64,7 @@ impl<'mir, 'tcx: 'mir, M: Machine<'mir, 'tcx>> InterpCx<'mir, 'tcx, M> {
let vtable = self
.get_ptr_alloc(
vtable,
pointer_size * u64::try_from(COMMON_VTABLE_ENTRIES.len()).unwrap(),
pointer_size * u64::try_from(TyCtxt::COMMON_VTABLE_ENTRIES.len()).unwrap(),
self.tcx.data_layout.pointer_align.abi,
)?
.expect("cannot be a ZST");
@ -99,7 +99,7 @@ impl<'mir, 'tcx: 'mir, M: Machine<'mir, 'tcx>> InterpCx<'mir, 'tcx, M> {
let vtable = self
.get_ptr_alloc(
vtable,
pointer_size * u64::try_from(COMMON_VTABLE_ENTRIES.len()).unwrap(),
pointer_size * u64::try_from(TyCtxt::COMMON_VTABLE_ENTRIES.len()).unwrap(),
self.tcx.data_layout.pointer_align.abi,
)?
.expect("cannot be a ZST");

1
compiler/rustc_lint/Cargo.toml
View File

@ -21,3 +21,4 @@ rustc_session = { path = "../rustc_session" }
rustc_trait_selection = { path = "../rustc_trait_selection" }
rustc_parse_format = { path = "../rustc_parse_format" }
rustc_infer = { path = "../rustc_infer" }
rustc_type_ir = { path = "../rustc_type_ir" }

4
compiler/rustc_lint/src/builtin.rs
View File

@ -2489,7 +2489,7 @@ impl<'tcx> LateLintPass<'tcx> for InvalidValue {
ty: Ty<'tcx>,
init: InitKind,
) -> Option<InitError> {
use rustc_middle::ty::TyKind::*;
use rustc_type_ir::sty::TyKind::*;
match ty.kind() {
// Primitive types that don't like 0 as a value.
Ref(..) => Some(("references must be non-null".to_string(), None)),
@ -2801,7 +2801,7 @@ impl ClashingExternDeclarations {
true
} else {
// Do a full, depth-first comparison between the two.
use rustc_middle::ty::TyKind::*;
use rustc_type_ir::sty::TyKind::*;
let a_kind = a.kind();
let b_kind = b.kind();

195
compiler/rustc_lint/src/internal.rs
View File

@ -5,8 +5,8 @@ use crate::{EarlyContext, EarlyLintPass, LateContext, LateLintPass, LintContext}
use rustc_ast as ast;
use rustc_errors::Applicability;
use rustc_hir::def::Res;
use rustc_hir::{Expr, ExprKind, GenericArg, Path, PathSegment, QPath};
use rustc_hir::{HirId, Item, ItemKind, Node, Ty, TyKind};
use rustc_hir::{Expr, ExprKind, GenericArg, PatKind, Path, PathSegment, QPath};
use rustc_hir::{HirId, Item, ItemKind, Node, Pat, Ty, TyKind};
use rustc_middle::ty;
use rustc_session::{declare_lint_pass, declare_tool_lint};
use rustc_span::hygiene::{ExpnKind, MacroKind};
@ -123,55 +123,115 @@ declare_lint_pass!(TyTyKind => [
]);
impl<'tcx> LateLintPass<'tcx> for TyTyKind {
fn check_path(&mut self, cx: &LateContext<'_>, path: &'tcx Path<'tcx>, _: HirId) {
let segments = path.segments.iter().rev().skip(1).rev();
if let Some(last) = segments.last() {
let span = path.span.with_hi(last.ident.span.hi());
if lint_ty_kind_usage(cx, last) {
cx.struct_span_lint(USAGE_OF_TY_TYKIND, span, |lint| {
lint.build("usage of `ty::TyKind::<kind>`")
.span_suggestion(
span,
"try using ty::<kind> directly",
"ty".to_string(),
Applicability::MaybeIncorrect, // ty maybe needs an import
)
.emit();
})
}
fn check_path(
&mut self,
cx: &LateContext<'tcx>,
path: &'tcx rustc_hir::Path<'tcx>,
_: rustc_hir::HirId,
) {
if let Some(segment) = path.segments.iter().nth_back(1)
&& let Some(res) = &segment.res
&& lint_ty_kind_usage(cx, res)
{
let span = path.span.with_hi(
segment.args.map_or(segment.ident.span, |a| a.span_ext).hi()
);
cx.struct_span_lint(USAGE_OF_TY_TYKIND, path.span, |lint| {
lint.build("usage of `ty::TyKind::<kind>`")
.span_suggestion(
span,
"try using `ty::<kind>` directly",
"ty".to_string(),
Applicability::MaybeIncorrect, // ty maybe needs an import
)
.emit();
});
}
}
fn check_ty(&mut self, cx: &LateContext<'_>, ty: &'tcx Ty<'tcx>) {
match &ty.kind {
TyKind::Path(QPath::Resolved(_, path)) => {
if let Some(last) = path.segments.iter().last() {
if lint_ty_kind_usage(cx, last) {
cx.struct_span_lint(USAGE_OF_TY_TYKIND, path.span, |lint| {
lint.build("usage of `ty::TyKind`")
.help("try using `Ty` instead")
.emit();
})
} else {
if ty.span.from_expansion() {
return;
}
if let Some(t) = is_ty_or_ty_ctxt(cx, ty) {
if path.segments.len() > 1 {
cx.struct_span_lint(USAGE_OF_QUALIFIED_TY, path.span, |lint| {
lint.build(&format!("usage of qualified `ty::{}`", t))
if lint_ty_kind_usage(cx, &path.res) {
cx.struct_span_lint(USAGE_OF_TY_TYKIND, path.span, |lint| {
let hir = cx.tcx.hir();
match hir.find(hir.get_parent_node(ty.hir_id)) {
Some(Node::Pat(Pat {
kind:
PatKind::Path(qpath)
| PatKind::TupleStruct(qpath, ..)
| PatKind::Struct(qpath, ..),
..
})) => {
if let QPath::TypeRelative(qpath_ty, ..) = qpath
&& qpath_ty.hir_id == ty.hir_id
{
lint.build("usage of `ty::TyKind::<kind>`")
.span_suggestion(
path.span,
"try importing it and using it unqualified",
t,
// The import probably needs to be changed
Applicability::MaybeIncorrect,
"try using `ty::<kind>` directly",
"ty".to_string(),
Applicability::MaybeIncorrect, // ty maybe needs an import
)
.emit();
})
return;
}
}
Some(Node::Expr(Expr {
kind: ExprKind::Path(qpath),
..
})) => {
if let QPath::TypeRelative(qpath_ty, ..) = qpath
&& qpath_ty.hir_id == ty.hir_id
{
lint.build("usage of `ty::TyKind::<kind>`")
.span_suggestion(
path.span,
"try using `ty::<kind>` directly",
"ty".to_string(),
Applicability::MaybeIncorrect, // ty maybe needs an import
)
.emit();
return;
}
}
// Can't unify these two branches because qpath below is `&&` and above is `&`
// and `A | B` paths don't play well together with adjustments, apparently.
Some(Node::Expr(Expr {
kind: ExprKind::Struct(qpath, ..),
..
})) => {
if let QPath::TypeRelative(qpath_ty, ..) = qpath
&& qpath_ty.hir_id == ty.hir_id
{
lint.build("usage of `ty::TyKind::<kind>`")
.span_suggestion(
path.span,
"try using `ty::<kind>` directly",
"ty".to_string(),
Applicability::MaybeIncorrect, // ty maybe needs an import
)
.emit();
return;
}
}
_ => {}
}
lint.build("usage of `ty::TyKind`").help("try using `Ty` instead").emit();
})
} else if !ty.span.from_expansion() && let Some(t) = is_ty_or_ty_ctxt(cx, &path) {
if path.segments.len() > 1 {
cx.struct_span_lint(USAGE_OF_QUALIFIED_TY, path.span, |lint| {
lint.build(&format!("usage of qualified `ty::{}`", t))
.span_suggestion(
path.span,
"try importing it and using it unqualified",
t,
// The import probably needs to be changed
Applicability::MaybeIncorrect,
)
.emit();
})
}
}
}
@ -180,42 +240,37 @@ impl<'tcx> LateLintPass<'tcx> for TyTyKind {
}
}
fn lint_ty_kind_usage(cx: &LateContext<'_>, segment: &PathSegment<'_>) -> bool {
if let Some(res) = segment.res {
if let Some(did) = res.opt_def_id() {
return cx.tcx.is_diagnostic_item(sym::TyKind, did);
}
fn lint_ty_kind_usage(cx: &LateContext<'_>, res: &Res) -> bool {
if let Some(did) = res.opt_def_id() {
cx.tcx.is_diagnostic_item(sym::TyKind, did) || cx.tcx.is_diagnostic_item(sym::IrTyKind, did)
} else {
false
}
false
}
fn is_ty_or_ty_ctxt(cx: &LateContext<'_>, ty: &Ty<'_>) -> Option<String> {
if let TyKind::Path(QPath::Resolved(_, path)) = &ty.kind {
match path.res {
Res::Def(_, def_id) => {
if let Some(name @ (sym::Ty | sym::TyCtxt)) = cx.tcx.get_diagnostic_name(def_id) {
return Some(format!("{}{}", name, gen_args(path.segments.last().unwrap())));
}
fn is_ty_or_ty_ctxt(cx: &LateContext<'_>, path: &Path<'_>) -> Option<String> {
match &path.res {
Res::Def(_, def_id) => {
if let Some(name @ (sym::Ty | sym::TyCtxt)) = cx.tcx.get_diagnostic_name(*def_id) {
return Some(format!("{}{}", name, gen_args(path.segments.last().unwrap())));
}
// Only lint on `&Ty` and `&TyCtxt` if it is used outside of a trait.
Res::SelfTy { trait_: None, alias_to: Some((did, _)) } => {
if let ty::Adt(adt, substs) = cx.tcx.type_of(did).kind() {
if let Some(name @ (sym::Ty | sym::TyCtxt)) =
cx.tcx.get_diagnostic_name(adt.did())
{
// NOTE: This path is currently unreachable as `Ty<'tcx>` is
// defined as a type alias meaning that `impl<'tcx> Ty<'tcx>`
// is not actually allowed.
//
// I(@lcnr) still kept this branch in so we don't miss this
// if we ever change it in the future.
return Some(format!("{}<{}>", name, substs[0]));
}
}
}
_ => (),
}
// Only lint on `&Ty` and `&TyCtxt` if it is used outside of a trait.
Res::SelfTy { trait_: None, alias_to: Some((did, _)) } => {
if let ty::Adt(adt, substs) = cx.tcx.type_of(did).kind() {
if let Some(name @ (sym::Ty | sym::TyCtxt)) = cx.tcx.get_diagnostic_name(adt.did())
{
// NOTE: This path is currently unreachable as `Ty<'tcx>` is
// defined as a type alias meaning that `impl<'tcx> Ty<'tcx>`
// is not actually allowed.
//
// I(@lcnr) still kept this branch in so we don't miss this
// if we ever change it in the future.
return Some(format!("{}<{}>", name, substs[0]));
}
}
}
_ => (),
}
None

4
compiler/rustc_macros/src/serialize.rs
View File

@ -8,7 +8,7 @@ pub fn type_decodable_derive(mut s: synstructure::Structure<'_>) -> proc_macro2:
if !s.ast().generics.lifetimes().any(|lt| lt.lifetime.ident == "tcx") {
s.add_impl_generic(parse_quote! { 'tcx });
}
s.add_impl_generic(parse_quote! {#decoder_ty: ::rustc_middle::ty::codec::TyDecoder<'tcx>});
s.add_impl_generic(parse_quote! {#decoder_ty: ::rustc_type_ir::codec::TyDecoder<I = ::rustc_middle::ty::TyCtxt<'tcx>>});
s.add_bounds(synstructure::AddBounds::Generics);
decodable_body(s, decoder_ty)
@ -95,7 +95,7 @@ pub fn type_encodable_derive(mut s: synstructure::Structure<'_>) -> proc_macro2:
s.add_impl_generic(parse_quote! {'tcx});
}
let encoder_ty = quote! { __E };
s.add_impl_generic(parse_quote! {#encoder_ty: ::rustc_middle::ty::codec::TyEncoder<'tcx>});
s.add_impl_generic(parse_quote! {#encoder_ty: ::rustc_type_ir::codec::TyEncoder<I = ::rustc_middle::ty::TyCtxt<'tcx>>});
s.add_bounds(synstructure::AddBounds::Generics);
encodable_body(s, encoder_ty, false)

1
compiler/rustc_metadata/Cargo.toml
View File

@ -27,3 +27,4 @@ rustc_ast = { path = "../rustc_ast" }
rustc_expand = { path = "../rustc_expand" }
rustc_span = { path = "../rustc_span" }
rustc_session = { path = "../rustc_session" }
rustc_type_ir = { path = "../rustc_type_ir" }

8
compiler/rustc_metadata/src/rmeta/decoder.rs
View File

@ -377,12 +377,14 @@ impl<'a, 'tcx> DecodeContext<'a, 'tcx> {
}
}
impl<'a, 'tcx> TyDecoder<'tcx> for DecodeContext<'a, 'tcx> {
impl<'a, 'tcx> TyDecoder for DecodeContext<'a, 'tcx> {
const CLEAR_CROSS_CRATE: bool = true;
type I = TyCtxt<'tcx>;
#[inline]
fn tcx(&self) -> TyCtxt<'tcx> {
self.tcx.expect("missing TyCtxt in DecodeContext")
fn interner(&self) -> Self::I {
self.tcx()
}
#[inline]

4
compiler/rustc_metadata/src/rmeta/encoder.rs
View File

@ -313,9 +313,11 @@ impl<'a, 'tcx> Encodable<EncodeContext<'a, 'tcx>> for Span {
}
}
impl<'a, 'tcx> TyEncoder<'tcx> for EncodeContext<'a, 'tcx> {
impl<'a, 'tcx> TyEncoder for EncodeContext<'a, 'tcx> {
const CLEAR_CROSS_CRATE: bool = true;
type I = TyCtxt<'tcx>;
fn position(&self) -> usize {
self.opaque.position()
}

12
compiler/rustc_middle/src/mir/interpret/mod.rs
View File

@ -203,7 +203,7 @@ enum AllocDiscriminant {
Static,
}
pub fn specialized_encode_alloc_id<'tcx, E: TyEncoder<'tcx>>(
pub fn specialized_encode_alloc_id<'tcx, E: TyEncoder<I = TyCtxt<'tcx>>>(
encoder: &mut E,
tcx: TyCtxt<'tcx>,
alloc_id: AllocId,
@ -277,7 +277,7 @@ impl<'s> AllocDecodingSession<'s> {
/// Decodes an `AllocId` in a thread-safe way.
pub fn decode_alloc_id<'tcx, D>(&self, decoder: &mut D) -> AllocId
where
D: TyDecoder<'tcx>,
D: TyDecoder<I = TyCtxt<'tcx>>,
{
// Read the index of the allocation.
let idx = usize::try_from(decoder.read_u32()).unwrap();
@ -305,7 +305,7 @@ impl<'s> AllocDecodingSession<'s> {
AllocDiscriminant::Alloc => {
// If this is an allocation, we need to reserve an
// `AllocId` so we can decode cyclic graphs.
let alloc_id = decoder.tcx().reserve_alloc_id();
let alloc_id = decoder.interner().reserve_alloc_id();
*entry =
State::InProgress(TinyList::new_single(self.session_id), alloc_id);
Some(alloc_id)
@ -349,7 +349,7 @@ impl<'s> AllocDecodingSession<'s> {
// We already have a reserved `AllocId`.
let alloc_id = alloc_id.unwrap();
trace!("decoded alloc {:?}: {:#?}", alloc_id, alloc);
decoder.tcx().set_alloc_id_same_memory(alloc_id, alloc);
decoder.interner().set_alloc_id_same_memory(alloc_id, alloc);
alloc_id
}
AllocDiscriminant::Fn => {
@ -357,7 +357,7 @@ impl<'s> AllocDecodingSession<'s> {
trace!("creating fn alloc ID");
let instance = ty::Instance::decode(decoder);
trace!("decoded fn alloc instance: {:?}", instance);
let alloc_id = decoder.tcx().create_fn_alloc(instance);
let alloc_id = decoder.interner().create_fn_alloc(instance);
alloc_id
}
AllocDiscriminant::Static => {
@ -365,7 +365,7 @@ impl<'s> AllocDecodingSession<'s> {
trace!("creating extern static alloc ID");
let did = <DefId as Decodable<D>>::decode(decoder);
trace!("decoded static def-ID: {:?}", did);
let alloc_id = decoder.tcx().create_static_alloc(did);
let alloc_id = decoder.interner().create_static_alloc(did);
alloc_id
}
}

4
compiler/rustc_middle/src/mir/mod.rs
View File

@ -668,7 +668,7 @@ impl<T> ClearCrossCrate<T> {
const TAG_CLEAR_CROSS_CRATE_CLEAR: u8 = 0;
const TAG_CLEAR_CROSS_CRATE_SET: u8 = 1;
impl<'tcx, E: TyEncoder<'tcx>, T: Encodable<E>> Encodable<E> for ClearCrossCrate<T> {
impl<E: TyEncoder, T: Encodable<E>> Encodable<E> for ClearCrossCrate<T> {
#[inline]
fn encode(&self, e: &mut E) -> Result<(), E::Error> {
if E::CLEAR_CROSS_CRATE {
@ -684,7 +684,7 @@ impl<'tcx, E: TyEncoder<'tcx>, T: Encodable<E>> Encodable<E> for ClearCrossCrate
}
}
}
impl<'tcx, D: TyDecoder<'tcx>, T: Decodable<D>> Decodable<D> for ClearCrossCrate<T> {
impl<D: TyDecoder, T: Decodable<D>> Decodable<D> for ClearCrossCrate<T> {
#[inline]
fn decode(d: &mut D) -> ClearCrossCrate<T> {
if D::CLEAR_CROSS_CRATE {

191
compiler/rustc_middle/src/ty/codec.rs
View File

@ -15,10 +15,12 @@ use crate::mir::{
use crate::thir;
use crate::traits;
use crate::ty::subst::SubstsRef;
use crate::ty::{self, AdtDef, Ty, TyCtxt};
use crate::ty::{self, AdtDef, Ty};
use rustc_data_structures::fx::FxHashMap;
use rustc_serialize::{Decodable, Decoder, Encodable, Encoder};
use rustc_middle::ty::TyCtxt;
use rustc_serialize::{Decodable, Encodable};
use rustc_span::Span;
pub use rustc_type_ir::{TyDecoder, TyEncoder};
use std::hash::Hash;
use std::intrinsics;
use std::marker::DiscriminantKind;
@ -28,13 +30,13 @@ use std::marker::DiscriminantKind;
/// This offset is also chosen so that the first byte is never < 0x80.
pub const SHORTHAND_OFFSET: usize = 0x80;
pub trait EncodableWithShorthand<'tcx, E: TyEncoder<'tcx>>: Copy + Eq + Hash {
pub trait EncodableWithShorthand<E: TyEncoder>: Copy + Eq + Hash {
type Variant: Encodable<E>;
fn variant(&self) -> &Self::Variant;
}
#[allow(rustc::usage_of_ty_tykind)]
impl<'tcx, E: TyEncoder<'tcx>> EncodableWithShorthand<'tcx, E> for Ty<'tcx> {
impl<'tcx, E: TyEncoder<I = TyCtxt<'tcx>>> EncodableWithShorthand<E> for Ty<'tcx> {
type Variant = ty::TyKind<'tcx>;
#[inline]
@ -43,7 +45,7 @@ impl<'tcx, E: TyEncoder<'tcx>> EncodableWithShorthand<'tcx, E> for Ty<'tcx> {
}
}
impl<'tcx, E: TyEncoder<'tcx>> EncodableWithShorthand<'tcx, E> for ty::PredicateKind<'tcx> {
impl<'tcx, E: TyEncoder<I = TyCtxt<'tcx>>> EncodableWithShorthand<E> for ty::PredicateKind<'tcx> {
type Variant = ty::PredicateKind<'tcx>;
#[inline]
@ -52,15 +54,6 @@ impl<'tcx, E: TyEncoder<'tcx>> EncodableWithShorthand<'tcx, E> for ty::Predicate
}
}
pub trait TyEncoder<'tcx>: Encoder {
const CLEAR_CROSS_CRATE: bool;
fn position(&self) -> usize;
fn type_shorthands(&mut self) -> &mut FxHashMap<Ty<'tcx>, usize>;
fn predicate_shorthands(&mut self) -> &mut FxHashMap<ty::PredicateKind<'tcx>, usize>;
fn encode_alloc_id(&mut self, alloc_id: &AllocId) -> Result<(), Self::Error>;
}
/// Trait for decoding to a reference.
///
/// This is a separate trait from `Decodable` so that we can implement it for
@ -71,7 +64,7 @@ pub trait TyEncoder<'tcx>: Encoder {
///
/// `Decodable` can still be implemented in cases where `Decodable` is required
/// by a trait bound.
pub trait RefDecodable<'tcx, D: TyDecoder<'tcx>> {
pub trait RefDecodable<'tcx, D: TyDecoder<I = TyCtxt<'tcx>>> {
fn decode(d: &mut D) -> &'tcx Self;
}
@ -82,9 +75,9 @@ pub fn encode_with_shorthand<'tcx, E, T, M>(
cache: M,
) -> Result<(), E::Error>
where
E: TyEncoder<'tcx>,
E: TyEncoder<I = TyCtxt<'tcx>>,
M: for<'b> Fn(&'b mut E) -> &'b mut FxHashMap<T, usize>,
T: EncodableWithShorthand<'tcx, E>,
T: EncodableWithShorthand<E>,
// The discriminant and shorthand must have the same size.
T::Variant: DiscriminantKind<Discriminant = isize>,
{
@ -119,100 +112,86 @@ where
Ok(())
}
impl<'tcx, E: TyEncoder<'tcx>> Encodable<E> for Ty<'tcx> {
impl<'tcx, E: TyEncoder<I = TyCtxt<'tcx>>> Encodable<E> for Ty<'tcx> {
fn encode(&self, e: &mut E) -> Result<(), E::Error> {
encode_with_shorthand(e, self, TyEncoder::type_shorthands)
}
}
impl<'tcx, E: TyEncoder<'tcx>> Encodable<E> for ty::Binder<'tcx, ty::PredicateKind<'tcx>> {
impl<'tcx, E: TyEncoder<I = TyCtxt<'tcx>>> Encodable<E>
for ty::Binder<'tcx, ty::PredicateKind<'tcx>>
{
fn encode(&self, e: &mut E) -> Result<(), E::Error> {
self.bound_vars().encode(e)?;
encode_with_shorthand(e, &self.skip_binder(), TyEncoder::predicate_shorthands)
}
}
impl<'tcx, E: TyEncoder<'tcx>> Encodable<E> for ty::Predicate<'tcx> {
impl<'tcx, E: TyEncoder<I = TyCtxt<'tcx>>> Encodable<E> for ty::Predicate<'tcx> {
fn encode(&self, e: &mut E) -> Result<(), E::Error> {
self.kind().encode(e)
}
}
impl<'tcx, E: TyEncoder<'tcx>> Encodable<E> for ty::Region<'tcx> {
impl<'tcx, E: TyEncoder<I = TyCtxt<'tcx>>> Encodable<E> for ty::Region<'tcx> {
fn encode(&self, e: &mut E) -> Result<(), E::Error> {
self.kind().encode(e)
}
}
impl<'tcx, E: TyEncoder<'tcx>> Encodable<E> for ty::Const<'tcx> {
impl<'tcx, E: TyEncoder<I = TyCtxt<'tcx>>> Encodable<E> for ty::Const<'tcx> {
fn encode(&self, e: &mut E) -> Result<(), E::Error> {
self.0.0.encode(e)
}
}
impl<'tcx, E: TyEncoder<'tcx>> Encodable<E> for ConstAllocation<'tcx> {
impl<'tcx, E: TyEncoder<I = TyCtxt<'tcx>>> Encodable<E> for ConstAllocation<'tcx> {
fn encode(&self, e: &mut E) -> Result<(), E::Error> {
self.inner().encode(e)
}
}
impl<'tcx, E: TyEncoder<'tcx>> Encodable<E> for AdtDef<'tcx> {
impl<'tcx, E: TyEncoder<I = TyCtxt<'tcx>>> Encodable<E> for AdtDef<'tcx> {
fn encode(&self, e: &mut E) -> Result<(), E::Error> {
self.0.0.encode(e)
}
}
impl<'tcx, E: TyEncoder<'tcx>> Encodable<E> for AllocId {
impl<'tcx, E: TyEncoder<I = TyCtxt<'tcx>>> Encodable<E> for AllocId {
fn encode(&self, e: &mut E) -> Result<(), E::Error> {
e.encode_alloc_id(self)
}
}
pub trait TyDecoder<'tcx>: Decoder {
const CLEAR_CROSS_CRATE: bool;
fn tcx(&self) -> TyCtxt<'tcx>;
fn peek_byte(&self) -> u8;
fn position(&self) -> usize;
fn cached_ty_for_shorthand<F>(&mut self, shorthand: usize, or_insert_with: F) -> Ty<'tcx>
where
F: FnOnce(&mut Self) -> Ty<'tcx>;
fn with_position<F, R>(&mut self, pos: usize, f: F) -> R
where
F: FnOnce(&mut Self) -> R;
fn positioned_at_shorthand(&self) -> bool {
(self.peek_byte() & (SHORTHAND_OFFSET as u8)) != 0
}
fn decode_alloc_id(&mut self) -> AllocId;
}
#[inline]
fn decode_arena_allocable<'tcx, D, T: ArenaAllocatable<'tcx> + Decodable<D>>(
fn decode_arena_allocable<
'tcx,
D: TyDecoder<I = TyCtxt<'tcx>>,
T: ArenaAllocatable<'tcx> + Decodable<D>,
>(
decoder: &mut D,
) -> &'tcx T
where
D: TyDecoder<'tcx>,
D: TyDecoder,
{
decoder.tcx().arena.alloc(Decodable::decode(decoder))
decoder.interner().arena.alloc(Decodable::decode(decoder))
}
#[inline]
fn decode_arena_allocable_slice<'tcx, D, T: ArenaAllocatable<'tcx> + Decodable<D>>(
fn decode_arena_allocable_slice<
'tcx,
D: TyDecoder<I = TyCtxt<'tcx>>,
T: ArenaAllocatable<'tcx> + Decodable<D>,
>(
decoder: &mut D,
) -> &'tcx [T]
where
D: TyDecoder<'tcx>,
D: TyDecoder,
{
decoder.tcx().arena.alloc_from_iter(<Vec<T> as Decodable<D>>::decode(decoder))
decoder.interner().arena.alloc_from_iter(<Vec<T> as Decodable<D>>::decode(decoder))
}
impl<'tcx, D: TyDecoder<'tcx>> Decodable<D> for Ty<'tcx> {
impl<'tcx, D: TyDecoder<I = TyCtxt<'tcx>>> Decodable<D> for Ty<'tcx> {
#[allow(rustc::usage_of_ty_tykind)]
fn decode(decoder: &mut D) -> Ty<'tcx> {
// Handle shorthands first, if we have a usize > 0x80.
@ -225,13 +204,15 @@ impl<'tcx, D: TyDecoder<'tcx>> Decodable<D> for Ty<'tcx> {
decoder.with_position(shorthand, Ty::decode)
})
} else {
let tcx = decoder.tcx();
tcx.mk_ty(ty::TyKind::decode(decoder))
let tcx = decoder.interner();
tcx.mk_ty(rustc_type_ir::TyKind::decode(decoder))
}
}
}
impl<'tcx, D: TyDecoder<'tcx>> Decodable<D> for ty::Binder<'tcx, ty::PredicateKind<'tcx>> {
impl<'tcx, D: TyDecoder<I = TyCtxt<'tcx>>> Decodable<D>
for ty::Binder<'tcx, ty::PredicateKind<'tcx>>
{
fn decode(decoder: &mut D) -> ty::Binder<'tcx, ty::PredicateKind<'tcx>> {
let bound_vars = Decodable::decode(decoder);
// Handle shorthands first, if we have a usize > 0x80.
@ -250,64 +231,64 @@ impl<'tcx, D: TyDecoder<'tcx>> Decodable<D> for ty::Binder<'tcx, ty::PredicateKi
}
}
impl<'tcx, D: TyDecoder<'tcx>> Decodable<D> for ty::Predicate<'tcx> {
impl<'tcx, D: TyDecoder<I = TyCtxt<'tcx>>> Decodable<D> for ty::Predicate<'tcx> {
fn decode(decoder: &mut D) -> ty::Predicate<'tcx> {
let predicate_kind = Decodable::decode(decoder);
decoder.tcx().mk_predicate(predicate_kind)
decoder.interner().mk_predicate(predicate_kind)
}
}
impl<'tcx, D: TyDecoder<'tcx>> Decodable<D> for SubstsRef<'tcx> {
impl<'tcx, D: TyDecoder<I = TyCtxt<'tcx>>> Decodable<D> for SubstsRef<'tcx> {
fn decode(decoder: &mut D) -> Self {
let len = decoder.read_usize();
let tcx = decoder.tcx();
let tcx = decoder.interner();
tcx.mk_substs(
(0..len).map::<ty::subst::GenericArg<'tcx>, _>(|_| Decodable::decode(decoder)),
)
}
}
impl<'tcx, D: TyDecoder<'tcx>> Decodable<D> for mir::Place<'tcx> {
impl<'tcx, D: TyDecoder<I = TyCtxt<'tcx>>> Decodable<D> for mir::Place<'tcx> {
fn decode(decoder: &mut D) -> Self {
let local: mir::Local = Decodable::decode(decoder);
let len = decoder.read_usize();
let projection = decoder.tcx().mk_place_elems(
let projection = decoder.interner().mk_place_elems(
(0..len).map::<mir::PlaceElem<'tcx>, _>(|_| Decodable::decode(decoder)),
);
mir::Place { local, projection }
}
}
impl<'tcx, D: TyDecoder<'tcx>> Decodable<D> for ty::Region<'tcx> {
impl<'tcx, D: TyDecoder<I = TyCtxt<'tcx>>> Decodable<D> for ty::Region<'tcx> {
fn decode(decoder: &mut D) -> Self {
decoder.tcx().mk_region(Decodable::decode(decoder))
decoder.interner().mk_region(Decodable::decode(decoder))
}
}
impl<'tcx, D: TyDecoder<'tcx>> Decodable<D> for CanonicalVarInfos<'tcx> {
impl<'tcx, D: TyDecoder<I = TyCtxt<'tcx>>> Decodable<D> for CanonicalVarInfos<'tcx> {
fn decode(decoder: &mut D) -> Self {
let len = decoder.read_usize();
let interned: Vec<CanonicalVarInfo<'tcx>> =
(0..len).map(|_| Decodable::decode(decoder)).collect();
decoder.tcx().intern_canonical_var_infos(interned.as_slice())
decoder.interner().intern_canonical_var_infos(interned.as_slice())
}
}
impl<'tcx, D: TyDecoder<'tcx>> Decodable<D> for AllocId {
impl<'tcx, D: TyDecoder<I = TyCtxt<'tcx>>> Decodable<D> for AllocId {
fn decode(decoder: &mut D) -> Self {
decoder.decode_alloc_id()
}
}
impl<'tcx, D: TyDecoder<'tcx>> Decodable<D> for ty::SymbolName<'tcx> {
impl<'tcx, D: TyDecoder<I = TyCtxt<'tcx>>> Decodable<D> for ty::SymbolName<'tcx> {
fn decode(decoder: &mut D) -> Self {
ty::SymbolName::new(decoder.tcx(), &decoder.read_str())
ty::SymbolName::new(decoder.interner(), &decoder.read_str())
}
}
macro_rules! impl_decodable_via_ref {
($($t:ty),+) => {
$(impl<'tcx, D: TyDecoder<'tcx>> Decodable<D> for $t {
$(impl<'tcx, D: TyDecoder<I = TyCtxt<'tcx>>> Decodable<D> for $t {
fn decode(decoder: &mut D) -> Self {
RefDecodable::decode(decoder)
}
@ -315,78 +296,86 @@ macro_rules! impl_decodable_via_ref {
}
}
impl<'tcx, D: TyDecoder<'tcx>> RefDecodable<'tcx, D> for ty::List<Ty<'tcx>> {
impl<'tcx, D: TyDecoder<I = TyCtxt<'tcx>>> RefDecodable<'tcx, D> for ty::List<Ty<'tcx>> {
fn decode(decoder: &mut D) -> &'tcx Self {
let len = decoder.read_usize();
decoder.tcx().mk_type_list((0..len).map::<Ty<'tcx>, _>(|_| Decodable::decode(decoder)))
decoder.interner().mk_type_list((0..len).map::<Ty<'tcx>, _>(|_| Decodable::decode(decoder)))
}
}
impl<'tcx, D: TyDecoder<'tcx>> RefDecodable<'tcx, D>
impl<'tcx, D: TyDecoder<I = TyCtxt<'tcx>>> RefDecodable<'tcx, D>
for ty::List<ty::Binder<'tcx, ty::ExistentialPredicate<'tcx>>>
{
fn decode(decoder: &mut D) -> &'tcx Self {
let len = decoder.read_usize();
decoder.tcx().mk_poly_existential_predicates(
decoder.interner().mk_poly_existential_predicates(
(0..len).map::<ty::Binder<'tcx, _>, _>(|_| Decodable::decode(decoder)),
)
}
}
impl<'tcx, D: TyDecoder<'tcx>> Decodable<D> for ty::Const<'tcx> {
impl<'tcx, D: TyDecoder<I = TyCtxt<'tcx>>> Decodable<D> for ty::Const<'tcx> {
fn decode(decoder: &mut D) -> Self {
decoder.tcx().mk_const(Decodable::decode(decoder))
decoder.interner().mk_const(Decodable::decode(decoder))
}
}
impl<'tcx, D: TyDecoder<'tcx>> RefDecodable<'tcx, D> for [ty::ValTree<'tcx>] {
impl<'tcx, D: TyDecoder<I = TyCtxt<'tcx>>> RefDecodable<'tcx, D> for [ty::ValTree<'tcx>] {
fn decode(decoder: &mut D) -> &'tcx Self {
decoder.tcx().arena.alloc_from_iter(
decoder.interner().arena.alloc_from_iter(
(0..decoder.read_usize()).map(|_| Decodable::decode(decoder)).collect::<Vec<_>>(),
)
}
}
impl<'tcx, D: TyDecoder<'tcx>> Decodable<D> for ConstAllocation<'tcx> {
impl<'tcx, D: TyDecoder<I = TyCtxt<'tcx>>> Decodable<D> for ConstAllocation<'tcx> {
fn decode(decoder: &mut D) -> Self {
decoder.tcx().intern_const_alloc(Decodable::decode(decoder))
decoder.interner().intern_const_alloc(Decodable::decode(decoder))
}
}
impl<'tcx, D: TyDecoder<'tcx>> Decodable<D> for AdtDef<'tcx> {
impl<'tcx, D: TyDecoder<I = TyCtxt<'tcx>>> Decodable<D> for AdtDef<'tcx> {
fn decode(decoder: &mut D) -> Self {
decoder.tcx().intern_adt_def(Decodable::decode(decoder))
decoder.interner().intern_adt_def(Decodable::decode(decoder))
}
}
impl<'tcx, D: TyDecoder<'tcx>> RefDecodable<'tcx, D> for [(ty::Predicate<'tcx>, Span)] {
impl<'tcx, D: TyDecoder<I = TyCtxt<'tcx>>> RefDecodable<'tcx, D>
for [(ty::Predicate<'tcx>, Span)]
{
fn decode(decoder: &mut D) -> &'tcx Self {
decoder.tcx().arena.alloc_from_iter(
decoder.interner().arena.alloc_from_iter(
(0..decoder.read_usize()).map(|_| Decodable::decode(decoder)).collect::<Vec<_>>(),
)
}
}
impl<'tcx, D: TyDecoder<'tcx>> RefDecodable<'tcx, D> for [thir::abstract_const::Node<'tcx>] {
impl<'tcx, D: TyDecoder<I = TyCtxt<'tcx>>> RefDecodable<'tcx, D>
for [thir::abstract_const::Node<'tcx>]
{
fn decode(decoder: &mut D) -> &'tcx Self {
decoder.tcx().arena.alloc_from_iter(
decoder.interner().arena.alloc_from_iter(
(0..decoder.read_usize()).map(|_| Decodable::decode(decoder)).collect::<Vec<_>>(),
)
}
}
impl<'tcx, D: TyDecoder<'tcx>> RefDecodable<'tcx, D> for [thir::abstract_const::NodeId] {
impl<'tcx, D: TyDecoder<I = TyCtxt<'tcx>>> RefDecodable<'tcx, D>
for [thir::abstract_const::NodeId]
{
fn decode(decoder: &mut D) -> &'tcx Self {
decoder.tcx().arena.alloc_from_iter(
decoder.interner().arena.alloc_from_iter(
(0..decoder.read_usize()).map(|_| Decodable::decode(decoder)).collect::<Vec<_>>(),
)
}
}
impl<'tcx, D: TyDecoder<'tcx>> RefDecodable<'tcx, D> for ty::List<ty::BoundVariableKind> {
impl<'tcx, D: TyDecoder<I = TyCtxt<'tcx>>> RefDecodable<'tcx, D>
for ty::List<ty::BoundVariableKind>
{
fn decode(decoder: &mut D) -> &'tcx Self {
let len = decoder.read_usize();
decoder.tcx().mk_bound_variable_kinds(
decoder.interner().mk_bound_variable_kinds(
(0..len).map::<ty::BoundVariableKind, _>(|_| Decodable::decode(decoder)),
)
}
@ -420,14 +409,14 @@ macro_rules! impl_arena_allocatable_decoder {
([]$args:tt) => {};
([decode $(, $attrs:ident)*]
[$name:ident: $ty:ty]) => {
impl<'tcx, D: TyDecoder<'tcx>> RefDecodable<'tcx, D> for $ty {
impl<'tcx, D: TyDecoder<I = TyCtxt<'tcx>>> RefDecodable<'tcx, D> for $ty {
#[inline]
fn decode(decoder: &mut D) -> &'tcx Self {
decode_arena_allocable(decoder)
}
}
impl<'tcx, D: TyDecoder<'tcx>> RefDecodable<'tcx, D> for [$ty] {
impl<'tcx, D: TyDecoder<I = TyCtxt<'tcx>>> RefDecodable<'tcx, D> for [$ty] {
#[inline]
fn decode(decoder: &mut D) -> &'tcx Self {
decode_arena_allocable_slice(decoder)
@ -449,17 +438,17 @@ arena_types!(impl_arena_allocatable_decoders);
macro_rules! impl_arena_copy_decoder {
(<$tcx:tt> $($ty:ty,)*) => {
$(impl<'tcx, D: TyDecoder<'tcx>> RefDecodable<'tcx, D> for $ty {
$(impl<'tcx, D: TyDecoder<I = TyCtxt<'tcx>>> RefDecodable<'tcx, D> for $ty {
#[inline]
fn decode(decoder: &mut D) -> &'tcx Self {
decoder.tcx().arena.alloc(Decodable::decode(decoder))
decoder.interner().arena.alloc(Decodable::decode(decoder))
}
}
impl<'tcx, D: TyDecoder<'tcx>> RefDecodable<'tcx, D> for [$ty] {
impl<'tcx, D: TyDecoder<I = TyCtxt<'tcx>>> RefDecodable<'tcx, D> for [$ty] {
#[inline]
fn decode(decoder: &mut D) -> &'tcx Self {
decoder.tcx().arena.alloc_from_iter(<Vec<_> as Decodable<D>>::decode(decoder))
decoder.interner().arena.alloc_from_iter(<Vec<_> as Decodable<D>>::decode(decoder))
}
})*
};
@ -518,13 +507,13 @@ macro_rules! implement_ty_decoder {
macro_rules! impl_binder_encode_decode {
($($t:ty),+ $(,)?) => {
$(
impl<'tcx, E: TyEncoder<'tcx>> Encodable<E> for ty::Binder<'tcx, $t> {
impl<'tcx, E: TyEncoder<I = TyCtxt<'tcx>>> Encodable<E> for ty::Binder<'tcx, $t> {
fn encode(&self, e: &mut E) -> Result<(), E::Error> {
self.bound_vars().encode(e)?;
self.as_ref().skip_binder().encode(e)
}
}
impl<'tcx, D: TyDecoder<'tcx>> Decodable<D> for ty::Binder<'tcx, $t> {
impl<'tcx, D: TyDecoder<I = TyCtxt<'tcx>>> Decodable<D> for ty::Binder<'tcx, $t> {
fn decode(decoder: &mut D) -> Self {
let bound_vars = Decodable::decode(decoder);
ty::Binder::bind_with_vars(Decodable::decode(decoder), bound_vars)

134
compiler/rustc_middle/src/ty/context.rs
View File

@ -16,7 +16,6 @@ use crate::thir::Thir;
use crate::traits;
use crate::ty::query::{self, TyCtxtAt};
use crate::ty::subst::{GenericArg, GenericArgKind, InternalSubsts, Subst, SubstsRef, UserSubsts};
use crate::ty::TyKind::*;
use crate::ty::{
self, AdtDef, AdtDefData, AdtKind, Binder, BindingMode, BoundVar, CanonicalPolyFnSig,
ClosureSizeProfileData, Const, ConstS, ConstVid, DefIdTree, ExistentialPredicate, FloatTy,
@ -60,9 +59,9 @@ use rustc_span::symbol::{kw, sym, Ident, Symbol};
use rustc_span::{Span, DUMMY_SP};
use rustc_target::abi::{Layout, LayoutS, TargetDataLayout, VariantIdx};
use rustc_target::spec::abi;
use rustc_type_ir::sty::TyKind::*;
use rustc_type_ir::{InternAs, InternIteratorElement, Interner, TypeFlags};
use rustc_type_ir::TypeFlags;
use smallvec::SmallVec;
use std::any::Any;
use std::borrow::Borrow;
use std::cmp::Ordering;
@ -91,6 +90,31 @@ pub trait OnDiskCache<'tcx>: rustc_data_structures::sync::Sync {
fn serialize(&self, tcx: TyCtxt<'tcx>, encoder: &mut FileEncoder) -> FileEncodeResult;
}
#[allow(rustc::usage_of_ty_tykind)]
impl<'tcx> Interner for TyCtxt<'tcx> {
type AdtDef = ty::AdtDef<'tcx>;
type SubstsRef = ty::SubstsRef<'tcx>;
type DefId = DefId;
type Ty = Ty<'tcx>;
type Const = ty::Const<'tcx>;
type Region = Region<'tcx>;
type TypeAndMut = TypeAndMut<'tcx>;
type Mutability = hir::Mutability;
type Movability = hir::Movability;
type PolyFnSig = PolyFnSig<'tcx>;
type ListBinderExistentialPredicate = &'tcx List<Binder<'tcx, ExistentialPredicate<'tcx>>>;
type BinderListTy = Binder<'tcx, &'tcx List<Ty<'tcx>>>;
type ListTy = &'tcx List<Ty<'tcx>>;
type ProjectionTy = ty::ProjectionTy<'tcx>;
type ParamTy = ParamTy;
type BoundTy = ty::BoundTy;
type PlaceholderType = ty::PlaceholderType;
type InferTy = InferTy;
type DelaySpanBugEmitted = DelaySpanBugEmitted;
type PredicateKind = ty::PredicateKind<'tcx>;
type AllocId = crate::mir::interpret::AllocId;
}
/// A type that is not publicly constructable. This prevents people from making [`TyKind::Error`]s
/// except through the error-reporting functions on a [`tcx`][TyCtxt].
#[derive(Copy, Clone, Debug, Eq, Hash, PartialEq, PartialOrd, Ord)]
@ -1677,7 +1701,7 @@ macro_rules! nop_lift {
impl<'a, 'tcx> Lift<'tcx> for $ty {
type Lifted = $lifted;
fn lift_to_tcx(self, tcx: TyCtxt<'tcx>) -> Option<Self::Lifted> {
if tcx.interners.$set.contains_pointer_to(&InternedInSet(self.0.0)) {
if tcx.interners.$set.contains_pointer_to(&InternedInSet(&*self.0.0)) {
// SAFETY: `self` is interned and therefore valid
// for the entire lifetime of the `TyCtxt`.
Some(unsafe { mem::transmute(self) })
@ -2848,108 +2872,6 @@ impl<'tcx> TyCtxtAt<'tcx> {
}
}
pub trait InternAs<T: ?Sized, R> {
type Output;
fn intern_with<F>(self, f: F) -> Self::Output
where
F: FnOnce(&T) -> R;
}
impl<I, T, R, E> InternAs<[T], R> for I
where
E: InternIteratorElement<T, R>,
I: Iterator<Item = E>,
{
type Output = E::Output;
fn intern_with<F>(self, f: F) -> Self::Output
where
F: FnOnce(&[T]) -> R,
{
E::intern_with(self, f)
}
}
pub trait InternIteratorElement<T, R>: Sized {
type Output;
fn intern_with<I: Iterator<Item = Self>, F: FnOnce(&[T]) -> R>(iter: I, f: F) -> Self::Output;
}
impl<T, R> InternIteratorElement<T, R> for T {
type Output = R;
fn intern_with<I: Iterator<Item = Self>, F: FnOnce(&[T]) -> R>(
mut iter: I,
f: F,
) -> Self::Output {
// This code is hot enough that it's worth specializing for the most
// common length lists, to avoid the overhead of `SmallVec` creation.
// Lengths 0, 1, and 2 typically account for ~95% of cases. If
// `size_hint` is incorrect a panic will occur via an `unwrap` or an
// `assert`.
match iter.size_hint() {
(0, Some(0)) => {
assert!(iter.next().is_none());
f(&[])
}
(1, Some(1)) => {
let t0 = iter.next().unwrap();
assert!(iter.next().is_none());
f(&[t0])
}
(2, Some(2)) => {
let t0 = iter.next().unwrap();
let t1 = iter.next().unwrap();
assert!(iter.next().is_none());
f(&[t0, t1])
}
_ => f(&iter.collect::<SmallVec<[_; 8]>>()),
}
}
}
impl<'a, T, R> InternIteratorElement<T, R> for &'a T
where
T: Clone + 'a,
{
type Output = R;
fn intern_with<I: Iterator<Item = Self>, F: FnOnce(&[T]) -> R>(iter: I, f: F) -> Self::Output {
// This code isn't hot.
f(&iter.cloned().collect::<SmallVec<[_; 8]>>())
}
}
impl<T, R, E> InternIteratorElement<T, R> for Result<T, E> {
type Output = Result<R, E>;
fn intern_with<I: Iterator<Item = Self>, F: FnOnce(&[T]) -> R>(
mut iter: I,
f: F,
) -> Self::Output {
// This code is hot enough that it's worth specializing for the most
// common length lists, to avoid the overhead of `SmallVec` creation.
// Lengths 0, 1, and 2 typically account for ~95% of cases. If
// `size_hint` is incorrect a panic will occur via an `unwrap` or an
// `assert`, unless a failure happens first, in which case the result
// will be an error anyway.
Ok(match iter.size_hint() {
(0, Some(0)) => {
assert!(iter.next().is_none());
f(&[])
}
(1, Some(1)) => {
let t0 = iter.next().unwrap()?;
assert!(iter.next().is_none());
f(&[t0])
}
(2, Some(2)) => {
let t0 = iter.next().unwrap()?;
let t1 = iter.next().unwrap()?;
assert!(iter.next().is_none());
f(&[t0, t1])
}
_ => f(&iter.collect::<Result<SmallVec<[_; 8]>, _>>()?),
})
}
}
// We are comparing types with different invariant lifetimes, so `ptr::eq`
// won't work for us.
fn ptr_eq<T, U>(t: *const T, u: *const U) -> bool {

2
compiler/rustc_middle/src/ty/diagnostics.rs
View File

@ -1,7 +1,6 @@
//! Diagnostics related methods for `Ty`.
use crate::ty::subst::{GenericArg, GenericArgKind};
use crate::ty::TyKind::*;
use crate::ty::{
ConstKind, DefIdTree, ExistentialPredicate, ExistentialProjection, ExistentialTraitRef,
InferTy, ProjectionTy, Term, Ty, TyCtxt, TypeAndMut,
@ -13,6 +12,7 @@ use rustc_hir as hir;
use rustc_hir::def_id::DefId;
use rustc_hir::WherePredicate;
use rustc_span::Span;
use rustc_type_ir::sty::TyKind::*;
impl<'tcx> IntoDiagnosticArg for Ty<'tcx> {
fn into_diagnostic_arg(self) -> DiagnosticArgValue<'static> {

8
compiler/rustc_middle/src/ty/fast_reject.rs
View File

@ -207,10 +207,10 @@ pub struct DeepRejectCtxt {
}
impl DeepRejectCtxt {
pub fn generic_args_may_unify(
pub fn generic_args_may_unify<'tcx>(
self,
obligation_arg: ty::GenericArg<'_>,
impl_arg: ty::GenericArg<'_>,
obligation_arg: ty::GenericArg<'tcx>,
impl_arg: ty::GenericArg<'tcx>,
) -> bool {
match (obligation_arg.unpack(), impl_arg.unpack()) {
// We don't fast reject based on regions for now.
@ -225,7 +225,7 @@ impl DeepRejectCtxt {
}
}
pub fn types_may_unify(self, obligation_ty: Ty<'_>, impl_ty: Ty<'_>) -> bool {
pub fn types_may_unify<'tcx>(self, obligation_ty: Ty<'tcx>, impl_ty: Ty<'tcx>) -> bool {
match impl_ty.kind() {
// Start by checking whether the type in the impl may unify with
// pretty much everything. Just return `true` in that case.

3
compiler/rustc_middle/src/ty/inhabitedness/mod.rs
View File

@ -2,11 +2,12 @@ pub use self::def_id_forest::DefIdForest;
use crate::ty;
use crate::ty::context::TyCtxt;
use crate::ty::TyKind::*;
use crate::ty::{AdtDef, FieldDef, Ty, VariantDef};
use crate::ty::{AdtKind, Visibility};
use crate::ty::{DefId, SubstsRef};
use rustc_type_ir::sty::TyKind::*;
mod def_id_forest;
// The methods in this module calculate `DefIdForest`s of modules in which an

38
compiler/rustc_middle/src/ty/mod.rs
View File

@ -51,6 +51,7 @@ use std::{fmt, str};
pub use crate::ty::diagnostics::*;
pub use rustc_type_ir::InferTy::*;
pub use rustc_type_ir::TyKind::*;
pub use rustc_type_ir::*;
pub use self::binding::BindingMode;
@ -76,15 +77,14 @@ pub use self::parameterized::ParameterizedOverTcx;
pub use self::rvalue_scopes::RvalueScopes;
pub use self::sty::BoundRegionKind::*;
pub use self::sty::RegionKind::*;
pub use self::sty::TyKind::*;
pub use self::sty::{
Binder, BoundRegion, BoundRegionKind, BoundTy, BoundTyKind, BoundVar, BoundVariableKind,
CanonicalPolyFnSig, ClosureSubsts, ClosureSubstsParts, ConstVid, EarlyBinder, EarlyBoundRegion,
ExistentialPredicate, ExistentialProjection, ExistentialTraitRef, FnSig, FreeRegion, GenSig,
GeneratorSubsts, GeneratorSubstsParts, InlineConstSubsts, InlineConstSubstsParts, ParamConst,
ParamTy, PolyExistentialProjection, PolyExistentialTraitRef, PolyFnSig, PolyGenSig,
PolyTraitRef, ProjectionTy, Region, RegionKind, RegionVid, TraitRef, TyKind, TypeAndMut,
UpvarSubsts, VarianceDiagInfo,
Article, Binder, BoundRegion, BoundRegionKind, BoundTy, BoundTyKind, BoundVar,
BoundVariableKind, CanonicalPolyFnSig, ClosureSubsts, ClosureSubstsParts, ConstVid,
EarlyBinder, EarlyBoundRegion, ExistentialPredicate, ExistentialProjection,
ExistentialTraitRef, FnSig, FreeRegion, GenSig, GeneratorSubsts, GeneratorSubstsParts,
InlineConstSubsts, InlineConstSubstsParts, ParamConst, ParamTy, PolyExistentialProjection,
PolyExistentialTraitRef, PolyFnSig, PolyGenSig, PolyTraitRef, ProjectionTy, Region, RegionKind,
RegionVid, TraitRef, TyKind, TypeAndMut, UpvarSubsts, VarianceDiagInfo,
};
pub use self::trait_def::TraitDef;
@ -463,16 +463,18 @@ static_assert_size!(WithStableHash<TyS<'_>>, 56);
#[rustc_pass_by_value]
pub struct Ty<'tcx>(Interned<'tcx, WithStableHash<TyS<'tcx>>>);
// Statics only used for internal testing.
pub static BOOL_TY: Ty<'static> = Ty(Interned::new_unchecked(&WithStableHash {
internee: BOOL_TYS,
stable_hash: Fingerprint::ZERO,
}));
const BOOL_TYS: TyS<'static> = TyS {
kind: ty::Bool,
flags: TypeFlags::empty(),
outer_exclusive_binder: DebruijnIndex::from_usize(0),
};
impl<'tcx> TyCtxt<'tcx> {
/// A "bool" type used in rustc_mir_transform unit tests when we
/// have not spun up a TyCtxt.
pub const BOOL_TY_FOR_UNIT_TESTING: Ty<'tcx> = Ty(Interned::new_unchecked(&WithStableHash {
internee: TyS {
kind: ty::Bool,
flags: TypeFlags::empty(),
outer_exclusive_binder: DebruijnIndex::from_usize(0),
},
stable_hash: Fingerprint::ZERO,
}));
}
impl<'a, 'tcx> HashStable<StableHashingContext<'a>> for TyS<'tcx> {
#[inline]

200
compiler/rustc_middle/src/ty/sty.rs
View File

@ -2,16 +2,14 @@
#![allow(rustc::usage_of_ty_tykind)]
use self::TyKind::*;
use crate::infer::canonical::Canonical;
use crate::ty::fold::ValidateBoundVars;
use crate::ty::subst::{GenericArg, InternalSubsts, Subst, SubstsRef};
use crate::ty::InferTy::{self, *};
use crate::ty::InferTy::*;
use crate::ty::{
self, AdtDef, DefIdTree, Discr, Term, Ty, TyCtxt, TypeFlags, TypeFoldable, TypeVisitor,
};
use crate::ty::{DelaySpanBugEmitted, List, ParamEnv};
use crate::ty::{List, ParamEnv};
use polonius_engine::Atom;
use rustc_data_structures::captures::Captures;
use rustc_data_structures::intern::Interned;
@ -29,6 +27,13 @@ use std::marker::PhantomData;
use std::ops::{ControlFlow, Deref, Range};
use ty::util::IntTypeExt;
use rustc_type_ir::sty::TyKind::*;
use rustc_type_ir::TyKind as IrTyKind;
// Re-export the `TyKind` from `rustc_type_ir` here for convenience
#[rustc_diagnostic_item = "TyKind"]
pub type TyKind<'tcx> = IrTyKind<TyCtxt<'tcx>>;
#[derive(Clone, Copy, PartialEq, Eq, PartialOrd, Ord, Hash, Debug, TyEncodable, TyDecodable)]
#[derive(HashStable, TypeFoldable, Lift)]
pub struct TypeAndMut<'tcx> {
@ -78,190 +83,13 @@ impl BoundRegionKind {
}
}
/// Defines the kinds of types used by the type system.
///
/// Types written by the user start out as [hir::TyKind](rustc_hir::TyKind) and get
/// converted to this representation using `AstConv::ast_ty_to_ty`.
#[derive(Clone, PartialEq, Eq, PartialOrd, Ord, Hash, TyEncodable, TyDecodable, Debug)]
#[derive(HashStable)]
#[rustc_diagnostic_item = "TyKind"]
pub enum TyKind<'tcx> {
/// The primitive boolean type. Written as `bool`.
Bool,
/// The primitive character type; holds a Unicode scalar value
/// (a non-surrogate code point). Written as `char`.
Char,
/// A primitive signed integer type. For example, `i32`.
Int(ty::IntTy),
/// A primitive unsigned integer type. For example, `u32`.
Uint(ty::UintTy),
/// A primitive floating-point type. For example, `f64`.
Float(ty::FloatTy),
/// Algebraic data types (ADT). For example: structures, enumerations and unions.
///
/// For example, the type `List<i32>` would be represented using the `AdtDef`
/// for `struct List<T>` and the substs `[i32]`.
///
/// Note that generic parameters in fields only get lazily substituted
/// by using something like `adt_def.all_fields().map(|field| field.ty(tcx, substs))`.
Adt(AdtDef<'tcx>, SubstsRef<'tcx>),
/// An unsized FFI type that is opaque to Rust. Written as `extern type T`.
Foreign(DefId),
/// The pointee of a string slice. Written as `str`.
Str,
/// An array with the given length. Written as `[T; N]`.
Array(Ty<'tcx>, ty::Const<'tcx>),
/// The pointee of an array slice. Written as `[T]`.
Slice(Ty<'tcx>),
/// A raw pointer. Written as `*mut T` or `*const T`
RawPtr(TypeAndMut<'tcx>),
/// A reference; a pointer with an associated lifetime. Written as
/// `&'a mut T` or `&'a T`.
Ref(Region<'tcx>, Ty<'tcx>, hir::Mutability),
/// The anonymous type of a function declaration/definition. Each
/// function has a unique type.
///
/// For the function `fn foo() -> i32 { 3 }` this type would be
/// shown to the user as `fn() -> i32 {foo}`.
///
/// For example the type of `bar` here:
/// ```rust
/// fn foo() -> i32 { 1 }
/// let bar = foo; // bar: fn() -> i32 {foo}
/// ```
FnDef(DefId, SubstsRef<'tcx>),
/// A pointer to a function. Written as `fn() -> i32`.
///
/// Note that both functions and closures start out as either
/// [FnDef] or [Closure] which can be then be coerced to this variant.
///
/// For example the type of `bar` here:
///
/// ```rust
/// fn foo() -> i32 { 1 }
/// let bar: fn() -> i32 = foo;
/// ```
FnPtr(PolyFnSig<'tcx>),
/// A trait object. Written as `dyn for<'b> Trait<'b, Assoc = u32> + Send + 'a`.
Dynamic(&'tcx List<Binder<'tcx, ExistentialPredicate<'tcx>>>, ty::Region<'tcx>),
/// The anonymous type of a closure. Used to represent the type of `|a| a`.
///
/// Closure substs contain both the - potentially substituted - generic parameters
/// of its parent and some synthetic parameters. See the documentation for
/// [ClosureSubsts] for more details.
Closure(DefId, SubstsRef<'tcx>),
/// The anonymous type of a generator. Used to represent the type of
/// `|a| yield a`.
///
/// For more info about generator substs, visit the documentation for
/// [GeneratorSubsts].
Generator(DefId, SubstsRef<'tcx>, hir::Movability),
/// A type representing the types stored inside a generator.
/// This should only appear as part of the [GeneratorSubsts].
///
/// Note that the captured variables for generators are stored separately
/// using a tuple in the same way as for closures.
///
/// Unlike upvars, the witness can reference lifetimes from
/// inside of the generator itself. To deal with them in
/// the type of the generator, we convert them to higher ranked
/// lifetimes bound by the witness itself.
///
/// Looking at the following example, the witness for this generator
/// may end up as something like `for<'a> [Vec<i32>, &'a Vec<i32>]`:
///
/// ```ignore UNSOLVED (ask @compiler-errors, should this error? can we just swap the yields?)
/// #![feature(generators)]
/// |a| {
/// let x = &vec![3];
/// yield a;
/// yield x[0];
/// }
/// # ;
/// ```
GeneratorWitness(Binder<'tcx, &'tcx List<Ty<'tcx>>>),
/// The never type `!`.
Never,
/// A tuple type. For example, `(i32, bool)`.
Tuple(&'tcx List<Ty<'tcx>>),
/// The projection of an associated type. For example,
/// `<T as Trait<..>>::N`.
Projection(ProjectionTy<'tcx>),
/// Opaque (`impl Trait`) type found in a return type.
///
/// The `DefId` comes either from
/// * the `impl Trait` ast::Ty node,
/// * or the `type Foo = impl Trait` declaration
///
/// For RPIT the substitutions are for the generics of the function,
/// while for TAIT it is used for the generic parameters of the alias.
///
/// During codegen, `tcx.type_of(def_id)` can be used to get the underlying type.
Opaque(DefId, SubstsRef<'tcx>),
/// A type parameter; for example, `T` in `fn f<T>(x: T) {}`.
Param(ParamTy),
/// Bound type variable, used to represent the `'a` in `for<'a> fn(&'a ())`.
///
/// For canonical queries, we replace inference variables with bound variables,
/// so e.g. when checking whether `&'_ (): Trait<_>` holds, we canonicalize that to
/// `for<'a, T> &'a (): Trait<T>` and then convert the introduced bound variables
/// back to inference variables in a new inference context when inside of the query.
///
/// See the `rustc-dev-guide` for more details about
/// [higher-ranked trait bounds][1] and [canonical queries][2].
///
/// [1]: https://rustc-dev-guide.rust-lang.org/traits/hrtb.html
/// [2]: https://rustc-dev-guide.rust-lang.org/traits/canonical-queries.html
Bound(ty::DebruijnIndex, BoundTy),
/// A placeholder type, used during higher ranked subtyping to instantiate
/// bound variables.
Placeholder(ty::PlaceholderType),
/// A type variable used during type checking.
///
/// Similar to placeholders, inference variables also live in a universe to
/// correctly deal with higher ranked types. Though unlike placeholders,
/// that universe is stored in the `InferCtxt` instead of directly
/// inside of the type.
Infer(InferTy),
/// A placeholder for a type which could not be computed; this is
/// propagated to avoid useless error messages.
Error(DelaySpanBugEmitted),
pub trait Article {
fn article(&self) -> &'static str;
}
impl<'tcx> TyKind<'tcx> {
#[inline]
pub fn is_primitive(&self) -> bool {
matches!(self, Bool | Char | Int(_) | Uint(_) | Float(_))
}
impl<'tcx> Article for TyKind<'tcx> {
/// Get the article ("a" or "an") to use with this type.
pub fn article(&self) -> &'static str {
fn article(&self) -> &'static str {
match self {
Int(_) | Float(_) | Array(_, _) => "an",
Adt(def, _) if def.is_enum() => "an",
@ -930,7 +758,7 @@ impl<'tcx> List<ty::Binder<'tcx, ExistentialPredicate<'tcx>>> {
}
#[inline]
pub fn auto_traits<'a>(&'a self) -> impl Iterator<Item = DefId> + 'a {
pub fn auto_traits<'a>(&'a self) -> impl Iterator<Item = DefId> + Captures<'tcx> + 'a {
self.iter().filter_map(|predicate| match predicate.skip_binder() {
ExistentialPredicate::AutoTrait(did) => Some(did),
_ => None,

14
compiler/rustc_middle/src/ty/subst.rs
View File

@ -4,7 +4,7 @@ use crate::mir;
use crate::ty::codec::{TyDecoder, TyEncoder};
use crate::ty::fold::{FallibleTypeFolder, TypeFoldable, TypeFolder, TypeVisitor};
use crate::ty::sty::{ClosureSubsts, GeneratorSubsts, InlineConstSubsts};
use crate::ty::{self, EarlyBinder, Lift, List, ParamConst, Ty, TyCtxt};
use crate::ty::{self, Lift, List, ParamConst, Ty, TyCtxt};
use rustc_data_structures::intern::{Interned, WithStableHash};
use rustc_hir::def_id::DefId;
@ -79,17 +79,17 @@ impl<'tcx> GenericArgKind<'tcx> {
let (tag, ptr) = match self {
GenericArgKind::Lifetime(lt) => {
// Ensure we can use the tag bits.
assert_eq!(mem::align_of_val(lt.0.0) & TAG_MASK, 0);
assert_eq!(mem::align_of_val(&*lt.0.0) & TAG_MASK, 0);
(REGION_TAG, lt.0.0 as *const ty::RegionKind as usize)
}
GenericArgKind::Type(ty) => {
// Ensure we can use the tag bits.
assert_eq!(mem::align_of_val(ty.0.0) & TAG_MASK, 0);
assert_eq!(mem::align_of_val(&*ty.0.0) & TAG_MASK, 0);
(TYPE_TAG, ty.0.0 as *const WithStableHash<ty::TyS<'tcx>> as usize)
}
GenericArgKind::Const(ct) => {
// Ensure we can use the tag bits.
assert_eq!(mem::align_of_val(ct.0.0) & TAG_MASK, 0);
assert_eq!(mem::align_of_val(&*ct.0.0) & TAG_MASK, 0);
(CONST_TAG, ct.0.0 as *const ty::ConstS<'tcx> as usize)
}
};
@ -216,13 +216,13 @@ impl<'tcx> TypeFoldable<'tcx> for GenericArg<'tcx> {
}
}
impl<'tcx, E: TyEncoder<'tcx>> Encodable<E> for GenericArg<'tcx> {
impl<'tcx, E: TyEncoder<I = TyCtxt<'tcx>>> Encodable<E> for GenericArg<'tcx> {
fn encode(&self, e: &mut E) -> Result<(), E::Error> {
self.unpack().encode(e)
}
}
impl<'tcx, D: TyDecoder<'tcx>> Decodable<D> for GenericArg<'tcx> {
impl<'tcx, D: TyDecoder<I = TyCtxt<'tcx>>> Decodable<D> for GenericArg<'tcx> {
fn decode(d: &mut D) -> GenericArg<'tcx> {
GenericArgKind::decode(d).pack()
}
@ -506,7 +506,7 @@ pub trait Subst<'tcx>: Sized {
fn subst(self, tcx: TyCtxt<'tcx>, substs: &[GenericArg<'tcx>]) -> Self::Inner;
}
impl<'tcx, T: TypeFoldable<'tcx>> Subst<'tcx> for EarlyBinder<T> {
impl<'tcx, T: TypeFoldable<'tcx>> Subst<'tcx> for ty::EarlyBinder<T> {
type Inner = T;
fn subst(self, tcx: TyCtxt<'tcx>, substs: &[GenericArg<'tcx>]) -> Self::Inner {

9
compiler/rustc_middle/src/ty/vtable.rs
View File

@ -36,8 +36,11 @@ impl<'tcx> fmt::Debug for VtblEntry<'tcx> {
}
}
pub const COMMON_VTABLE_ENTRIES: &[VtblEntry<'_>] =
&[VtblEntry::MetadataDropInPlace, VtblEntry::MetadataSize, VtblEntry::MetadataAlign];
// Needs to be associated with the `'tcx` lifetime
impl<'tcx> TyCtxt<'tcx> {
pub const COMMON_VTABLE_ENTRIES: &'tcx [VtblEntry<'tcx>] =
&[VtblEntry::MetadataDropInPlace, VtblEntry::MetadataSize, VtblEntry::MetadataAlign];
}
pub const COMMON_VTABLE_ENTRIES_DROPINPLACE: usize = 0;
pub const COMMON_VTABLE_ENTRIES_SIZE: usize = 1;
@ -57,7 +60,7 @@ pub(super) fn vtable_allocation_provider<'tcx>(
tcx.vtable_entries(trait_ref)
} else {
COMMON_VTABLE_ENTRIES
TyCtxt::COMMON_VTABLE_ENTRIES
};
let layout = tcx

6
compiler/rustc_mir_transform/src/coverage/tests.rs
View File

@ -37,7 +37,7 @@ use rustc_data_structures::graph::WithSuccessors;
use rustc_index::vec::{Idx, IndexVec};
use rustc_middle::mir::coverage::CoverageKind;
use rustc_middle::mir::*;
use rustc_middle::ty::{self, BOOL_TY};
use rustc_middle::ty::{self, Ty, TyCtxt};
use rustc_span::{self, BytePos, Pos, Span, DUMMY_SP};
// All `TEMP_BLOCK` targets should be replaced before calling `to_body() -> mir::Body`.
@ -47,6 +47,7 @@ struct MockBlocks<'tcx> {
blocks: IndexVec<BasicBlock, BasicBlockData<'tcx>>,
dummy_place: Place<'tcx>,
next_local: usize,
bool_ty: Ty<'tcx>,
}
impl<'tcx> MockBlocks<'tcx> {
@ -55,6 +56,7 @@ impl<'tcx> MockBlocks<'tcx> {
blocks: IndexVec::new(),
dummy_place: Place { local: RETURN_PLACE, projection: ty::List::empty() },
next_local: 0,
bool_ty: TyCtxt::BOOL_TY_FOR_UNIT_TESTING,
}
}
@ -155,7 +157,7 @@ impl<'tcx> MockBlocks<'tcx> {
fn switchint(&mut self, some_from_block: Option<BasicBlock>) -> BasicBlock {
let switchint_kind = TerminatorKind::SwitchInt {
discr: Operand::Move(Place::from(self.new_temp())),
switch_ty: BOOL_TY, // just a dummy value
switch_ty: self.bool_ty, // just a dummy value
targets: SwitchTargets::static_if(0, TEMP_BLOCK, TEMP_BLOCK),
};
self.add_block_from(some_from_block, switchint_kind)

1
compiler/rustc_query_impl/Cargo.toml
View File

@ -20,6 +20,7 @@ rustc_query_system = { path = "../rustc_query_system" }
rustc_serialize = { path = "../rustc_serialize" }
rustc_session = { path = "../rustc_session" }
rustc_span = { path = "../rustc_span" }
rustc_type_ir = { path = "../rustc_type_ir" }
tracing = "0.1"
[features]

12
compiler/rustc_query_impl/src/on_disk_cache.rs
View File

@ -547,11 +547,12 @@ where
value
}
impl<'a, 'tcx> TyDecoder<'tcx> for CacheDecoder<'a, 'tcx> {
impl<'a, 'tcx> TyDecoder for CacheDecoder<'a, 'tcx> {
type I = TyCtxt<'tcx>;
const CLEAR_CROSS_CRATE: bool = false;
#[inline]
fn tcx(&self) -> TyCtxt<'tcx> {
fn interner(&self) -> TyCtxt<'tcx> {
self.tcx
}
@ -569,7 +570,7 @@ impl<'a, 'tcx> TyDecoder<'tcx> for CacheDecoder<'a, 'tcx> {
where
F: FnOnce(&mut Self) -> Ty<'tcx>,
{
let tcx = self.tcx();
let tcx = self.tcx;
let cache_key = ty::CReaderCacheKey { cnum: None, pos: shorthand };
@ -750,7 +751,7 @@ impl<'a, 'tcx> Decodable<CacheDecoder<'a, 'tcx>> for DefId {
// If we get to this point, then all of the query inputs were green,
// which means that the definition with this hash is guaranteed to
// still exist in the current compilation session.
d.tcx().def_path_hash_to_def_id(def_path_hash, &mut || {
d.tcx.def_path_hash_to_def_id(def_path_hash, &mut || {
panic!("Failed to convert DefPathHash {:?}", def_path_hash)
})
}
@ -927,10 +928,11 @@ where
}
}
impl<'a, 'tcx, E> TyEncoder<'tcx> for CacheEncoder<'a, 'tcx, E>
impl<'a, 'tcx, E> TyEncoder for CacheEncoder<'a, 'tcx, E>
where
E: 'a + OpaqueEncoder,
{
type I = TyCtxt<'tcx>;
const CLEAR_CROSS_CRATE: bool = false;
fn position(&self) -> usize {

1
compiler/rustc_query_system/Cargo.toml
View File

@ -21,6 +21,7 @@ rustc_serialize = { path = "../rustc_serialize" }
rustc_session = { path = "../rustc_session" }
rustc_span = { path = "../rustc_span" }
rustc_target = { path = "../rustc_target" }
rustc_type_ir = { path = "../rustc_type_ir" }
parking_lot = "0.11"
smallvec = { version = "1.6.1", features = ["union", "may_dangle"] }

1
compiler/rustc_span/src/symbol.rs
View File

@ -205,6 +205,7 @@ symbols! {
IntoIterator,
IoRead,
IoWrite,
IrTyKind,
Is,
ItemContext,
Iterator,

8
compiler/rustc_trait_selection/src/traits/mod.rs
View File

@ -32,9 +32,7 @@ use rustc_hir::def_id::DefId;
use rustc_hir::lang_items::LangItem;
use rustc_middle::ty::fold::TypeFoldable;
use rustc_middle::ty::subst::{InternalSubsts, SubstsRef};
use rustc_middle::ty::{
self, GenericParamDefKind, ToPredicate, Ty, TyCtxt, VtblEntry, COMMON_VTABLE_ENTRIES,
};
use rustc_middle::ty::{self, GenericParamDefKind, ToPredicate, Ty, TyCtxt, VtblEntry};
use rustc_span::{sym, Span};
use smallvec::SmallVec;
@ -695,7 +693,7 @@ fn vtable_entries<'tcx>(
let vtable_segment_callback = |segment| -> ControlFlow<()> {
match segment {
VtblSegment::MetadataDSA => {
entries.extend(COMMON_VTABLE_ENTRIES);
entries.extend(TyCtxt::COMMON_VTABLE_ENTRIES);
}
VtblSegment::TraitOwnEntries { trait_ref, emit_vptr } => {
let existential_trait_ref = trait_ref
@ -785,7 +783,7 @@ fn vtable_trait_first_method_offset<'tcx>(
move |segment| {
match segment {
VtblSegment::MetadataDSA => {
vtable_base += COMMON_VTABLE_ENTRIES.len();
vtable_base += TyCtxt::COMMON_VTABLE_ENTRIES.len();
}
VtblSegment::TraitOwnEntries { trait_ref, emit_vptr } => {
if tcx.erase_regions(trait_ref) == trait_to_be_found_erased {

4
compiler/rustc_trait_selection/src/traits/select/confirmation.rs
View File

@ -12,7 +12,7 @@ use rustc_index::bit_set::GrowableBitSet;
use rustc_infer::infer::InferOk;
use rustc_infer::infer::LateBoundRegionConversionTime::HigherRankedType;
use rustc_middle::ty::subst::{GenericArg, GenericArgKind, InternalSubsts, Subst, SubstsRef};
use rustc_middle::ty::{self, EarlyBinder, GenericParamDefKind, Ty};
use rustc_middle::ty::{self, EarlyBinder, GenericParamDefKind, Ty, TyCtxt};
use rustc_middle::ty::{ToPolyTraitRef, ToPredicate};
use rustc_span::def_id::DefId;
@ -834,7 +834,7 @@ impl<'cx, 'tcx> SelectionContext<'cx, 'tcx> {
move |segment| {
match segment {
VtblSegment::MetadataDSA => {
vptr_offset += ty::COMMON_VTABLE_ENTRIES.len();
vptr_offset += TyCtxt::COMMON_VTABLE_ENTRIES.len();
}
VtblSegment::TraitOwnEntries { trait_ref, emit_vptr } => {
vptr_offset += util::count_own_vtable_entries(tcx, trait_ref);

1
compiler/rustc_ty_utils/Cargo.toml
View File

@ -14,3 +14,4 @@ rustc_span = { path = "../rustc_span" }
rustc_session = { path = "../rustc_session" }
rustc_target = { path = "../rustc_target" }
rustc_trait_selection = { path = "../rustc_trait_selection" }
rustc_type_ir = { path = "../rustc_type_ir" }

2
compiler/rustc_ty_utils/src/ty.rs
View File

@ -13,7 +13,7 @@ fn sized_constraint_for_ty<'tcx>(
adtdef: ty::AdtDef<'tcx>,
ty: Ty<'tcx>,
) -> Vec<Ty<'tcx>> {
use ty::TyKind::*;
use rustc_type_ir::sty::TyKind::*;
let result = match ty.kind() {
Bool | Char | Int(..) | Uint(..) | Float(..) | RawPtr(..) | Ref(..) | FnDef(..)

1
compiler/rustc_type_ir/Cargo.toml
View File

@ -12,3 +12,4 @@ rustc_index = { path = "../rustc_index" }
rustc_serialize = { path = "../rustc_serialize" }
rustc_data_structures = { path = "../rustc_data_structures" }
rustc_macros = { path = "../rustc_macros" }
smallvec = { version = "1.0", features = ["union", "may_dangle"] }

67
compiler/rustc_type_ir/src/codec.rs Normal file
View File

@ -0,0 +1,67 @@
use crate::Interner;
use rustc_data_structures::stable_map::FxHashMap;
use rustc_serialize::{Decoder, Encoder};
/// The shorthand encoding uses an enum's variant index `usize`
/// and is offset by this value so it never matches a real variant.
/// This offset is also chosen so that the first byte is never < 0x80.
pub const SHORTHAND_OFFSET: usize = 0x80;
/// Trait for decoding to a reference.
///
/// This is a separate trait from `Decodable` so that we can implement it for
/// upstream types, such as `FxHashSet`.
///
/// The `TyDecodable` derive macro will use this trait for fields that are
/// references (and don't use a type alias to hide that).
///
/// `Decodable` can still be implemented in cases where `Decodable` is required
/// by a trait bound.
pub trait RefDecodable<'tcx, D: TyDecoder> {
fn decode(d: &mut D) -> &'tcx Self;
}
pub trait TyEncoder: Encoder {
type I: Interner;
const CLEAR_CROSS_CRATE: bool;
fn position(&self) -> usize;
fn type_shorthands(&mut self) -> &mut FxHashMap<<Self::I as Interner>::Ty, usize>;
fn predicate_shorthands(
&mut self,
) -> &mut FxHashMap<<Self::I as Interner>::PredicateKind, usize>;
fn encode_alloc_id(
&mut self,
alloc_id: &<Self::I as Interner>::AllocId,
) -> Result<(), Self::Error>;
}
pub trait TyDecoder: Decoder {
type I: Interner;
const CLEAR_CROSS_CRATE: bool;
fn interner(&self) -> Self::I;
fn peek_byte(&self) -> u8;
fn position(&self) -> usize;
fn cached_ty_for_shorthand<F>(
&mut self,
shorthand: usize,
or_insert_with: F,
) -> <Self::I as Interner>::Ty
where
F: FnOnce(&mut Self) -> <Self::I as Interner>::Ty;
fn with_position<F, R>(&mut self, pos: usize, f: F) -> R
where
F: FnOnce(&mut Self) -> R;
fn positioned_at_shorthand(&self) -> bool {
(self.peek_byte() & (SHORTHAND_OFFSET as u8)) != 0
}
fn decode_alloc_id(&mut self) -> <Self::I as Interner>::AllocId;
}

136
compiler/rustc_type_ir/src/lib.rs
View File

@ -1,4 +1,5 @@
#![feature(min_specialization)]
#![feature(rustc_attrs)]
#[macro_use]
extern crate bitflags;
@ -7,9 +8,144 @@ extern crate rustc_macros;
use rustc_data_structures::stable_hasher::{HashStable, StableHasher};
use rustc_data_structures::unify::{EqUnifyValue, UnifyKey};
use smallvec::SmallVec;
use std::fmt;
use std::fmt::Debug;
use std::hash::Hash;
use std::mem::discriminant;
pub mod codec;
pub mod sty;
pub use codec::*;
pub use sty::*;
pub trait Interner {
type AdtDef: Clone + Debug + Hash + PartialEq + Eq + PartialOrd + Ord;
type SubstsRef: Clone + Debug + Hash + PartialEq + Eq + PartialOrd + Ord;
type DefId: Clone + Debug + Hash + PartialEq + Eq + PartialOrd + Ord;
type Ty: Clone + Debug + Hash + PartialEq + Eq + PartialOrd + Ord;
type Const: Clone + Debug + Hash + PartialEq + Eq + PartialOrd + Ord;
type Region: Clone + Debug + Hash + PartialEq + Eq + PartialOrd + Ord;
type TypeAndMut: Clone + Debug + Hash + PartialEq + Eq + PartialOrd + Ord;
type Mutability: Clone + Debug + Hash + PartialEq + Eq + PartialOrd + Ord;
type Movability: Clone + Debug + Hash + PartialEq + Eq + PartialOrd + Ord;
type PolyFnSig: Clone + Debug + Hash + PartialEq + Eq + PartialOrd + Ord;
type ListBinderExistentialPredicate: Clone + Debug + Hash + PartialEq + Eq + PartialOrd + Ord;
type BinderListTy: Clone + Debug + Hash + PartialEq + Eq + PartialOrd + Ord;
type ListTy: Clone + Debug + Hash + PartialEq + Eq + PartialOrd + Ord;
type ProjectionTy: Clone + Debug + Hash + PartialEq + Eq + PartialOrd + Ord;
type ParamTy: Clone + Debug + Hash + PartialEq + Eq + PartialOrd + Ord;
type BoundTy: Clone + Debug + Hash + PartialEq + Eq + PartialOrd + Ord;
type PlaceholderType: Clone + Debug + Hash + PartialEq + Eq + PartialOrd + Ord;
type InferTy: Clone + Debug + Hash + PartialEq + Eq + PartialOrd + Ord;
type DelaySpanBugEmitted: Clone + Debug + Hash + PartialEq + Eq + PartialOrd + Ord;
type PredicateKind: Clone + Debug + Hash + PartialEq + Eq;
type AllocId: Clone + Debug + Hash + PartialEq + Eq + PartialOrd + Ord;
}
pub trait InternAs<T: ?Sized, R> {
type Output;
fn intern_with<F>(self, f: F) -> Self::Output
where
F: FnOnce(&T) -> R;
}
impl<I, T, R, E> InternAs<[T], R> for I
where
E: InternIteratorElement<T, R>,
I: Iterator<Item = E>,
{
type Output = E::Output;
fn intern_with<F>(self, f: F) -> Self::Output
where
F: FnOnce(&[T]) -> R,
{
E::intern_with(self, f)
}
}
pub trait InternIteratorElement<T, R>: Sized {
type Output;
fn intern_with<I: Iterator<Item = Self>, F: FnOnce(&[T]) -> R>(iter: I, f: F) -> Self::Output;
}
impl<T, R> InternIteratorElement<T, R> for T {
type Output = R;
fn intern_with<I: Iterator<Item = Self>, F: FnOnce(&[T]) -> R>(
mut iter: I,
f: F,
) -> Self::Output {
// This code is hot enough that it's worth specializing for the most
// common length lists, to avoid the overhead of `SmallVec` creation.
// Lengths 0, 1, and 2 typically account for ~95% of cases. If
// `size_hint` is incorrect a panic will occur via an `unwrap` or an
// `assert`.
match iter.size_hint() {
(0, Some(0)) => {
assert!(iter.next().is_none());
f(&[])
}
(1, Some(1)) => {
let t0 = iter.next().unwrap();
assert!(iter.next().is_none());
f(&[t0])
}
(2, Some(2)) => {
let t0 = iter.next().unwrap();
let t1 = iter.next().unwrap();
assert!(iter.next().is_none());
f(&[t0, t1])
}
_ => f(&iter.collect::<SmallVec<[_; 8]>>()),
}
}
}
impl<'a, T, R> InternIteratorElement<T, R> for &'a T
where
T: Clone + 'a,
{
type Output = R;
fn intern_with<I: Iterator<Item = Self>, F: FnOnce(&[T]) -> R>(iter: I, f: F) -> Self::Output {
// This code isn't hot.
f(&iter.cloned().collect::<SmallVec<[_; 8]>>())
}
}
impl<T, R, E> InternIteratorElement<T, R> for Result<T, E> {
type Output = Result<R, E>;
fn intern_with<I: Iterator<Item = Self>, F: FnOnce(&[T]) -> R>(
mut iter: I,
f: F,
) -> Self::Output {
// This code is hot enough that it's worth specializing for the most
// common length lists, to avoid the overhead of `SmallVec` creation.
// Lengths 0, 1, and 2 typically account for ~95% of cases. If
// `size_hint` is incorrect a panic will occur via an `unwrap` or an
// `assert`, unless a failure happens first, in which case the result
// will be an error anyway.
Ok(match iter.size_hint() {
(0, Some(0)) => {
assert!(iter.next().is_none());
f(&[])
}
(1, Some(1)) => {
let t0 = iter.next().unwrap()?;
assert!(iter.next().is_none());
f(&[t0])
}
(2, Some(2)) => {
let t0 = iter.next().unwrap()?;
let t1 = iter.next().unwrap()?;
assert!(iter.next().is_none());
f(&[t0, t1])
}
_ => f(&iter.collect::<Result<SmallVec<[_; 8]>, _>>()?),
})
}
}
bitflags! {
/// Flags that we track on types. These flags are propagated upwards
/// through the type during type construction, so that we can quickly check

1040
compiler/rustc_type_ir/src/sty.rs Normal file
View File

File diff suppressed because it is too large Load Diff

1
compiler/rustc_typeck/Cargo.toml
View File

@ -29,3 +29,4 @@ rustc_trait_selection = { path = "../rustc_trait_selection" }
rustc_ty_utils = { path = "../rustc_ty_utils" }
rustc_lint = { path = "../rustc_lint" }
rustc_serialize = { path = "../rustc_serialize" }
rustc_type_ir = { path = "../rustc_type_ir" }

2
compiler/rustc_typeck/src/check/demand.rs
View File

@ -12,7 +12,7 @@ use rustc_middle::lint::in_external_macro;
use rustc_middle::ty::adjustment::AllowTwoPhase;
use rustc_middle::ty::error::{ExpectedFound, TypeError};
use rustc_middle::ty::print::with_no_trimmed_paths;
use rustc_middle::ty::{self, AssocItem, Ty, TypeAndMut};
use rustc_middle::ty::{self, Article, AssocItem, Ty, TypeAndMut};
use rustc_span::symbol::{sym, Symbol};
use rustc_span::{BytePos, Span};

2
compiler/rustc_typeck/src/check/intrinsicck.rs
View File

@ -4,7 +4,7 @@ use rustc_errors::struct_span_err;
use rustc_hir as hir;
use rustc_index::vec::Idx;
use rustc_middle::ty::layout::{LayoutError, SizeSkeleton};
use rustc_middle::ty::{self, FloatTy, InferTy, IntTy, Ty, TyCtxt, TypeFoldable, UintTy};
use rustc_middle::ty::{self, Article, FloatTy, InferTy, IntTy, Ty, TyCtxt, TypeFoldable, UintTy};
use rustc_session::lint;
use rustc_span::{Span, Symbol, DUMMY_SP};
use rustc_target::abi::{Pointer, VariantIdx};

2
compiler/rustc_typeck/src/check/op.rs
View File

@ -10,7 +10,6 @@ use rustc_middle::ty::adjustment::{
Adjust, Adjustment, AllowTwoPhase, AutoBorrow, AutoBorrowMutability,
};
use rustc_middle::ty::fold::TypeFolder;
use rustc_middle::ty::TyKind::{Adt, Array, Char, FnDef, Never, Ref, Str, Tuple, Uint};
use rustc_middle::ty::{self, Ty, TyCtxt, TypeFoldable, TypeVisitor};
use rustc_span::source_map::Spanned;
use rustc_span::symbol::{sym, Ident};
@ -18,6 +17,7 @@ use rustc_span::Span;
use rustc_trait_selection::infer::InferCtxtExt;
use rustc_trait_selection::traits::error_reporting::suggestions::InferCtxtExt as _;
use rustc_trait_selection::traits::{FulfillmentError, TraitEngine, TraitEngineExt};
use rustc_type_ir::sty::TyKind::*;
use std::ops::ControlFlow;

2
compiler/rustc_typeck/src/coherence/builtin.rs
View File

@ -177,7 +177,7 @@ fn visit_implementation_of_dispatch_from_dyn<'tcx>(tcx: TyCtxt<'tcx>, impl_did:
tcx.infer_ctxt().enter(|infcx| {
let cause = ObligationCause::misc(span, impl_hir_id);
use ty::TyKind::*;
use rustc_type_ir::sty::TyKind::*;
match (source.kind(), target.kind()) {
(&Ref(r_a, _, mutbl_a), Ref(r_b, _, mutbl_b))
if infcx.at(&cause, param_env).eq(r_a, *r_b).is_ok() && mutbl_a == *mutbl_b => {}

2
src/test/run-make-fulldeps/obtain-borrowck/driver.rs
View File

@ -154,7 +154,7 @@ fn get_bodies<'tcx>(tcx: TyCtxt<'tcx>) -> Vec<(String, BodyWithBorrowckFacts<'tc
// SAFETY: For soundness we need to ensure that the bodies have
// the same lifetime (`'tcx`), which they had before they were
// stored in the thread local.
(def_path.to_string_no_crate_verbose(), body)
(def_path.to_string_no_crate_verbose(), unsafe { std::mem::transmute(body) })
})
.collect()
})

60
src/test/ui-fulldeps/internal-lints/ty_tykind_usage.rs
View File

@ -3,41 +3,43 @@
#![feature(rustc_private)]
extern crate rustc_middle;
extern crate rustc_type_ir;
use rustc_middle::ty::{self, Ty, TyKind};
use rustc_type_ir::{Interner, TyKind as IrTyKind};
#[deny(rustc::usage_of_ty_tykind)]
fn main() {
let kind = TyKind::Bool; //~ ERROR usage of `ty::TyKind::<kind>`
match kind {
TyKind::Bool => (), //~ ERROR usage of `ty::TyKind::<kind>`
TyKind::Char => (), //~ ERROR usage of `ty::TyKind::<kind>`
TyKind::Int(..) => (), //~ ERROR usage of `ty::TyKind::<kind>`
TyKind::Uint(..) => (), //~ ERROR usage of `ty::TyKind::<kind>`
TyKind::Float(..) => (), //~ ERROR usage of `ty::TyKind::<kind>`
TyKind::Adt(..) => (), //~ ERROR usage of `ty::TyKind::<kind>`
TyKind::Foreign(..) => (), //~ ERROR usage of `ty::TyKind::<kind>`
TyKind::Str => (), //~ ERROR usage of `ty::TyKind::<kind>`
TyKind::Array(..) => (), //~ ERROR usage of `ty::TyKind::<kind>`
TyKind::Slice(..) => (), //~ ERROR usage of `ty::TyKind::<kind>`
TyKind::RawPtr(..) => (), //~ ERROR usage of `ty::TyKind::<kind>`
TyKind::Ref(..) => (), //~ ERROR usage of `ty::TyKind::<kind>`
TyKind::FnDef(..) => (), //~ ERROR usage of `ty::TyKind::<kind>`
TyKind::FnPtr(..) => (), //~ ERROR usage of `ty::TyKind::<kind>`
TyKind::Dynamic(..) => (), //~ ERROR usage of `ty::TyKind::<kind>`
TyKind::Closure(..) => (), //~ ERROR usage of `ty::TyKind::<kind>`
TyKind::Generator(..) => (), //~ ERROR usage of `ty::TyKind::<kind>`
TyKind::Bool => (), //~ ERROR usage of `ty::TyKind::<kind>`
TyKind::Char => (), //~ ERROR usage of `ty::TyKind::<kind>`
TyKind::Int(..) => (), //~ ERROR usage of `ty::TyKind::<kind>`
TyKind::Uint(..) => (), //~ ERROR usage of `ty::TyKind::<kind>`
TyKind::Float(..) => (), //~ ERROR usage of `ty::TyKind::<kind>`
TyKind::Adt(..) => (), //~ ERROR usage of `ty::TyKind::<kind>`
TyKind::Foreign(..) => (), //~ ERROR usage of `ty::TyKind::<kind>`
TyKind::Str => (), //~ ERROR usage of `ty::TyKind::<kind>`
TyKind::Array(..) => (), //~ ERROR usage of `ty::TyKind::<kind>`
TyKind::Slice(..) => (), //~ ERROR usage of `ty::TyKind::<kind>`
TyKind::RawPtr(..) => (), //~ ERROR usage of `ty::TyKind::<kind>`
TyKind::Ref(..) => (), //~ ERROR usage of `ty::TyKind::<kind>`
TyKind::FnDef(..) => (), //~ ERROR usage of `ty::TyKind::<kind>`
TyKind::FnPtr(..) => (), //~ ERROR usage of `ty::TyKind::<kind>`
TyKind::Dynamic(..) => (), //~ ERROR usage of `ty::TyKind::<kind>`
TyKind::Closure(..) => (), //~ ERROR usage of `ty::TyKind::<kind>`
TyKind::Generator(..) => (), //~ ERROR usage of `ty::TyKind::<kind>`
TyKind::GeneratorWitness(..) => (), //~ ERROR usage of `ty::TyKind::<kind>`
TyKind::Never => (), //~ ERROR usage of `ty::TyKind::<kind>`
TyKind::Tuple(..) => (), //~ ERROR usage of `ty::TyKind::<kind>`
TyKind::Projection(..) => (), //~ ERROR usage of `ty::TyKind::<kind>`
TyKind::Opaque(..) => (), //~ ERROR usage of `ty::TyKind::<kind>`
TyKind::Param(..) => (), //~ ERROR usage of `ty::TyKind::<kind>`
TyKind::Bound(..) => (), //~ ERROR usage of `ty::TyKind::<kind>`
TyKind::Placeholder(..) => (), //~ ERROR usage of `ty::TyKind::<kind>`
TyKind::Infer(..) => (), //~ ERROR usage of `ty::TyKind::<kind>`
TyKind::Error(_) => (), //~ ERROR usage of `ty::TyKind::<kind>`
TyKind::Never => (), //~ ERROR usage of `ty::TyKind::<kind>`
TyKind::Tuple(..) => (), //~ ERROR usage of `ty::TyKind::<kind>`
TyKind::Projection(..) => (), //~ ERROR usage of `ty::TyKind::<kind>`
TyKind::Opaque(..) => (), //~ ERROR usage of `ty::TyKind::<kind>`
TyKind::Param(..) => (), //~ ERROR usage of `ty::TyKind::<kind>`
TyKind::Bound(..) => (), //~ ERROR usage of `ty::TyKind::<kind>`
TyKind::Placeholder(..) => (), //~ ERROR usage of `ty::TyKind::<kind>`
TyKind::Infer(..) => (), //~ ERROR usage of `ty::TyKind::<kind>`
TyKind::Error(_) => (), //~ ERROR usage of `ty::TyKind::<kind>`
}
if let ty::Int(int_ty) = kind {}
@ -45,4 +47,10 @@ fn main() {
if let TyKind::Int(int_ty) = kind {} //~ ERROR usage of `ty::TyKind::<kind>`
fn ty_kind(ty_bad: TyKind<'_>, ty_good: Ty<'_>) {} //~ ERROR usage of `ty::TyKind`
fn ir_ty_kind<I: Interner>(bad: IrTyKind<I>) -> IrTyKind<I> {
//~^ ERROR usage of `ty::TyKind`
//~| ERROR usage of `ty::TyKind`
IrTyKind::Bool //~ ERROR usage of `ty::TyKind::<kind>`
}
}

162
src/test/ui-fulldeps/internal-lints/ty_tykind_usage.stderr
View File

@ -1,190 +1,214 @@
error: usage of `ty::TyKind::<kind>`
--> $DIR/ty_tykind_usage.rs:11:16
--> $DIR/ty_tykind_usage.rs:13:16
|
LL | let kind = TyKind::Bool;
| ^^^^^^ help: try using ty::<kind> directly: `ty`
| ^^^^^^ help: try using `ty::<kind>` directly: `ty`
|
note: the lint level is defined here
--> $DIR/ty_tykind_usage.rs:9:8
--> $DIR/ty_tykind_usage.rs:11:8
|
LL | #[deny(rustc::usage_of_ty_tykind)]
| ^^^^^^^^^^^^^^^^^^^^^^^^^
error: usage of `ty::TyKind::<kind>`
--> $DIR/ty_tykind_usage.rs:14:9
|
LL | TyKind::Bool => (),
| ^^^^^^ help: try using ty::<kind> directly: `ty`
error: usage of `ty::TyKind::<kind>`
--> $DIR/ty_tykind_usage.rs:15:9
|
LL | TyKind::Char => (),
| ^^^^^^ help: try using ty::<kind> directly: `ty`
error: usage of `ty::TyKind::<kind>`
--> $DIR/ty_tykind_usage.rs:16:9
|
LL | TyKind::Int(..) => (),
| ^^^^^^ help: try using ty::<kind> directly: `ty`
LL | TyKind::Bool => (),
| ^^^^^^ help: try using `ty::<kind>` directly: `ty`
error: usage of `ty::TyKind::<kind>`
--> $DIR/ty_tykind_usage.rs:17:9
|
LL | TyKind::Uint(..) => (),
| ^^^^^^ help: try using ty::<kind> directly: `ty`
LL | TyKind::Char => (),
| ^^^^^^ help: try using `ty::<kind>` directly: `ty`
error: usage of `ty::TyKind::<kind>`
--> $DIR/ty_tykind_usage.rs:18:9
|
LL | TyKind::Float(..) => (),
| ^^^^^^ help: try using ty::<kind> directly: `ty`
LL | TyKind::Int(..) => (),
| ^^^^^^ help: try using `ty::<kind>` directly: `ty`
error: usage of `ty::TyKind::<kind>`
--> $DIR/ty_tykind_usage.rs:19:9
|
LL | TyKind::Adt(..) => (),
| ^^^^^^ help: try using ty::<kind> directly: `ty`
LL | TyKind::Uint(..) => (),
| ^^^^^^ help: try using `ty::<kind>` directly: `ty`
error: usage of `ty::TyKind::<kind>`
--> $DIR/ty_tykind_usage.rs:20:9
|
LL | TyKind::Foreign(..) => (),
| ^^^^^^ help: try using ty::<kind> directly: `ty`
LL | TyKind::Float(..) => (),
| ^^^^^^ help: try using `ty::<kind>` directly: `ty`
error: usage of `ty::TyKind::<kind>`
--> $DIR/ty_tykind_usage.rs:21:9
|
LL | TyKind::Str => (),
| ^^^^^^ help: try using ty::<kind> directly: `ty`
LL | TyKind::Adt(..) => (),
| ^^^^^^ help: try using `ty::<kind>` directly: `ty`
error: usage of `ty::TyKind::<kind>`
--> $DIR/ty_tykind_usage.rs:22:9
|
LL | TyKind::Array(..) => (),
| ^^^^^^ help: try using ty::<kind> directly: `ty`
LL | TyKind::Foreign(..) => (),
| ^^^^^^ help: try using `ty::<kind>` directly: `ty`
error: usage of `ty::TyKind::<kind>`
--> $DIR/ty_tykind_usage.rs:23:9
|
LL | TyKind::Slice(..) => (),
| ^^^^^^ help: try using ty::<kind> directly: `ty`
LL | TyKind::Str => (),
| ^^^^^^ help: try using `ty::<kind>` directly: `ty`
error: usage of `ty::TyKind::<kind>`
--> $DIR/ty_tykind_usage.rs:24:9
|
LL | TyKind::RawPtr(..) => (),
| ^^^^^^ help: try using ty::<kind> directly: `ty`
LL | TyKind::Array(..) => (),
| ^^^^^^ help: try using `ty::<kind>` directly: `ty`
error: usage of `ty::TyKind::<kind>`
--> $DIR/ty_tykind_usage.rs:25:9
|
LL | TyKind::Ref(..) => (),
| ^^^^^^ help: try using ty::<kind> directly: `ty`
LL | TyKind::Slice(..) => (),
| ^^^^^^ help: try using `ty::<kind>` directly: `ty`
error: usage of `ty::TyKind::<kind>`
--> $DIR/ty_tykind_usage.rs:26:9
|
LL | TyKind::FnDef(..) => (),
| ^^^^^^ help: try using ty::<kind> directly: `ty`
LL | TyKind::RawPtr(..) => (),
| ^^^^^^ help: try using `ty::<kind>` directly: `ty`
error: usage of `ty::TyKind::<kind>`
--> $DIR/ty_tykind_usage.rs:27:9
|
LL | TyKind::FnPtr(..) => (),
| ^^^^^^ help: try using ty::<kind> directly: `ty`
LL | TyKind::Ref(..) => (),
| ^^^^^^ help: try using `ty::<kind>` directly: `ty`
error: usage of `ty::TyKind::<kind>`
--> $DIR/ty_tykind_usage.rs:28:9
|
LL | TyKind::Dynamic(..) => (),
| ^^^^^^ help: try using ty::<kind> directly: `ty`
LL | TyKind::FnDef(..) => (),
| ^^^^^^ help: try using `ty::<kind>` directly: `ty`
error: usage of `ty::TyKind::<kind>`
--> $DIR/ty_tykind_usage.rs:29:9
|
LL | TyKind::Closure(..) => (),
| ^^^^^^ help: try using ty::<kind> directly: `ty`
LL | TyKind::FnPtr(..) => (),
| ^^^^^^ help: try using `ty::<kind>` directly: `ty`
error: usage of `ty::TyKind::<kind>`
--> $DIR/ty_tykind_usage.rs:30:9
|
LL | TyKind::Generator(..) => (),
| ^^^^^^ help: try using ty::<kind> directly: `ty`
LL | TyKind::Dynamic(..) => (),
| ^^^^^^ help: try using `ty::<kind>` directly: `ty`
error: usage of `ty::TyKind::<kind>`
--> $DIR/ty_tykind_usage.rs:31:9
|
LL | TyKind::GeneratorWitness(..) => (),
| ^^^^^^ help: try using ty::<kind> directly: `ty`
LL | TyKind::Closure(..) => (),
| ^^^^^^ help: try using `ty::<kind>` directly: `ty`
error: usage of `ty::TyKind::<kind>`
--> $DIR/ty_tykind_usage.rs:32:9
|
LL | TyKind::Never => (),
| ^^^^^^ help: try using ty::<kind> directly: `ty`
LL | TyKind::Generator(..) => (),
| ^^^^^^ help: try using `ty::<kind>` directly: `ty`
error: usage of `ty::TyKind::<kind>`
--> $DIR/ty_tykind_usage.rs:33:9
|
LL | TyKind::Tuple(..) => (),
| ^^^^^^ help: try using ty::<kind> directly: `ty`
LL | TyKind::GeneratorWitness(..) => (),
| ^^^^^^ help: try using `ty::<kind>` directly: `ty`
error: usage of `ty::TyKind::<kind>`
--> $DIR/ty_tykind_usage.rs:34:9
|
LL | TyKind::Projection(..) => (),
| ^^^^^^ help: try using ty::<kind> directly: `ty`
LL | TyKind::Never => (),
| ^^^^^^ help: try using `ty::<kind>` directly: `ty`
error: usage of `ty::TyKind::<kind>`
--> $DIR/ty_tykind_usage.rs:35:9
|
LL | TyKind::Opaque(..) => (),
| ^^^^^^ help: try using ty::<kind> directly: `ty`
LL | TyKind::Tuple(..) => (),
| ^^^^^^ help: try using `ty::<kind>` directly: `ty`
error: usage of `ty::TyKind::<kind>`
--> $DIR/ty_tykind_usage.rs:36:9
|
LL | TyKind::Param(..) => (),
| ^^^^^^ help: try using ty::<kind> directly: `ty`
LL | TyKind::Projection(..) => (),
| ^^^^^^ help: try using `ty::<kind>` directly: `ty`
error: usage of `ty::TyKind::<kind>`
--> $DIR/ty_tykind_usage.rs:37:9
|
LL | TyKind::Bound(..) => (),
| ^^^^^^ help: try using ty::<kind> directly: `ty`
LL | TyKind::Opaque(..) => (),
| ^^^^^^ help: try using `ty::<kind>` directly: `ty`
error: usage of `ty::TyKind::<kind>`
--> $DIR/ty_tykind_usage.rs:38:9
|
LL | TyKind::Placeholder(..) => (),
| ^^^^^^ help: try using ty::<kind> directly: `ty`
LL | TyKind::Param(..) => (),
| ^^^^^^ help: try using `ty::<kind>` directly: `ty`
error: usage of `ty::TyKind::<kind>`
--> $DIR/ty_tykind_usage.rs:39:9
|
LL | TyKind::Infer(..) => (),
| ^^^^^^ help: try using ty::<kind> directly: `ty`
LL | TyKind::Bound(..) => (),
| ^^^^^^ help: try using `ty::<kind>` directly: `ty`
error: usage of `ty::TyKind::<kind>`
--> $DIR/ty_tykind_usage.rs:40:9
|
LL | TyKind::Error(_) => (),
| ^^^^^^ help: try using ty::<kind> directly: `ty`
LL | TyKind::Placeholder(..) => (),
| ^^^^^^ help: try using `ty::<kind>` directly: `ty`
error: usage of `ty::TyKind::<kind>`
--> $DIR/ty_tykind_usage.rs:45:12
--> $DIR/ty_tykind_usage.rs:41:9
|
LL | TyKind::Infer(..) => (),
| ^^^^^^ help: try using `ty::<kind>` directly: `ty`
error: usage of `ty::TyKind::<kind>`
--> $DIR/ty_tykind_usage.rs:42:9
|
LL | TyKind::Error(_) => (),
| ^^^^^^ help: try using `ty::<kind>` directly: `ty`
error: usage of `ty::TyKind::<kind>`
--> $DIR/ty_tykind_usage.rs:47:12
|
LL | if let TyKind::Int(int_ty) = kind {}
| ^^^^^^ help: try using ty::<kind> directly: `ty`
| ^^^^^^ help: try using `ty::<kind>` directly: `ty`
error: usage of `ty::TyKind`
--> $DIR/ty_tykind_usage.rs:47:24
--> $DIR/ty_tykind_usage.rs:49:24
|
LL | fn ty_kind(ty_bad: TyKind<'_>, ty_good: Ty<'_>) {}
| ^^^^^^^^^^
|
= help: try using `Ty` instead
error: aborting due to 30 previous errors
error: usage of `ty::TyKind`
--> $DIR/ty_tykind_usage.rs:51:37
|
LL | fn ir_ty_kind<I: Interner>(bad: IrTyKind<I>) -> IrTyKind<I> {
| ^^^^^^^^^^^
|
= help: try using `Ty` instead
error: usage of `ty::TyKind`
--> $DIR/ty_tykind_usage.rs:51:53
|
LL | fn ir_ty_kind<I: Interner>(bad: IrTyKind<I>) -> IrTyKind<I> {
| ^^^^^^^^^^^
|
= help: try using `Ty` instead
error: usage of `ty::TyKind::<kind>`
--> $DIR/ty_tykind_usage.rs:54:9
|
LL | IrTyKind::Bool
| --------^^^^^^
| |
| help: try using `ty::<kind>` directly: `ty`
error: aborting due to 33 previous errors