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XSimplifiedType to SimplifiedType::X

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This commit is contained in:
lcnr 2023-07-18 17:03:22 +02:00
parent c67cb3e577
commit fdaec57a28
7 changed files with 116 additions and 118 deletions
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10
compiler/rustc_hir_analysis/src/coherence/orphan.rs
View File

@ -568,10 +568,10 @@ fn fast_reject_auto_impl<'tcx>(tcx: TyCtxt<'tcx>, trait_def_id: DefId, self_ty:
impl<'tcx> TypeVisitor<TyCtxt<'tcx>> for DisableAutoTraitVisitor<'tcx> {
type BreakTy = ();
fn visit_ty(&mut self, t: Ty<'tcx>) -> ControlFlow<Self::BreakTy> {
fn visit_ty(&mut self, ty: Ty<'tcx>) -> ControlFlow<Self::BreakTy> {
let tcx = self.tcx;
if t != self.self_ty_root {
for impl_def_id in tcx.non_blanket_impls_for_ty(self.trait_def_id, t) {
if ty != self.self_ty_root {
for impl_def_id in tcx.non_blanket_impls_for_ty(self.trait_def_id, ty) {
match tcx.impl_polarity(impl_def_id) {
ImplPolarity::Negative => return ControlFlow::Break(()),
ImplPolarity::Reservation => {}
@ -584,7 +584,7 @@ fn fast_reject_auto_impl<'tcx>(tcx: TyCtxt<'tcx>, trait_def_id: DefId, self_ty:
}
}
match t.kind() {
match ty.kind() {
ty::Adt(def, args) if def.is_phantom_data() => args.visit_with(self),
ty::Adt(def, args) => {
// @lcnr: This is the only place where cycles can happen. We avoid this
@ -599,7 +599,7 @@ fn fast_reject_auto_impl<'tcx>(tcx: TyCtxt<'tcx>, trait_def_id: DefId, self_ty:
ControlFlow::Continue(())
}
_ => t.super_visit_with(self),
_ => ty.super_visit_with(self),
}
}
}

112
compiler/rustc_middle/src/ty/fast_reject.rs
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@ -6,35 +6,33 @@ use std::fmt::Debug;
use std::hash::Hash;
use std::iter;
use self::SimplifiedType::*;
/// See `simplify_type`.
#[derive(Clone, Copy, Debug, PartialEq, Eq, Hash, TyEncodable, TyDecodable, HashStable)]
pub enum SimplifiedType {
BoolSimplifiedType,
CharSimplifiedType,
IntSimplifiedType(ty::IntTy),
UintSimplifiedType(ty::UintTy),
FloatSimplifiedType(ty::FloatTy),
AdtSimplifiedType(DefId),
ForeignSimplifiedType(DefId),
StrSimplifiedType,
ArraySimplifiedType,
SliceSimplifiedType,
RefSimplifiedType(Mutability),
PtrSimplifiedType(Mutability),
NeverSimplifiedType,
TupleSimplifiedType(usize),
Bool,
Char,
Int(ty::IntTy),
Uint(ty::UintTy),
Float(ty::FloatTy),
Adt(DefId),
Foreign(DefId),
Str,
Array,
Slice,
Ref(Mutability),
Ptr(Mutability),
Never,
Tuple(usize),
/// A trait object, all of whose components are markers
/// (e.g., `dyn Send + Sync`).
MarkerTraitObjectSimplifiedType,
TraitSimplifiedType(DefId),
ClosureSimplifiedType(DefId),
GeneratorSimplifiedType(DefId),
GeneratorWitnessSimplifiedType(usize),
GeneratorWitnessMIRSimplifiedType(DefId),
FunctionSimplifiedType(usize),
PlaceholderSimplifiedType,
MarkerTraitObject,
Trait(DefId),
Closure(DefId),
Generator(DefId),
GeneratorWitness(usize),
GeneratorWitnessMIR(DefId),
Function(usize),
Placeholder,
}
/// Generic parameters are pretty much just bound variables, e.g.
@ -110,34 +108,36 @@ pub fn simplify_type<'tcx>(
treat_params: TreatParams,
) -> Option<SimplifiedType> {
match *ty.kind() {
ty::Bool => Some(BoolSimplifiedType),
ty::Char => Some(CharSimplifiedType),
ty::Int(int_type) => Some(IntSimplifiedType(int_type)),
ty::Uint(uint_type) => Some(UintSimplifiedType(uint_type)),
ty::Float(float_type) => Some(FloatSimplifiedType(float_type)),
ty::Adt(def, _) => Some(AdtSimplifiedType(def.did())),
ty::Str => Some(StrSimplifiedType),
ty::Array(..) => Some(ArraySimplifiedType),
ty::Slice(..) => Some(SliceSimplifiedType),
ty::RawPtr(ptr) => Some(PtrSimplifiedType(ptr.mutbl)),
ty::Bool => Some(SimplifiedType::Bool),
ty::Char => Some(SimplifiedType::Char),
ty::Int(int_type) => Some(SimplifiedType::Int(int_type)),
ty::Uint(uint_type) => Some(SimplifiedType::Uint(uint_type)),
ty::Float(float_type) => Some(SimplifiedType::Float(float_type)),
ty::Adt(def, _) => Some(SimplifiedType::Adt(def.did())),
ty::Str => Some(SimplifiedType::Str),
ty::Array(..) => Some(SimplifiedType::Array),
ty::Slice(..) => Some(SimplifiedType::Slice),
ty::RawPtr(ptr) => Some(SimplifiedType::Ptr(ptr.mutbl)),
ty::Dynamic(trait_info, ..) => match trait_info.principal_def_id() {
Some(principal_def_id) if !tcx.trait_is_auto(principal_def_id) => {
Some(TraitSimplifiedType(principal_def_id))
Some(SimplifiedType::Trait(principal_def_id))
}
_ => Some(MarkerTraitObjectSimplifiedType),
_ => Some(SimplifiedType::MarkerTraitObject),
},
ty::Ref(_, _, mutbl) => Some(RefSimplifiedType(mutbl)),
ty::FnDef(def_id, _) | ty::Closure(def_id, _) => Some(ClosureSimplifiedType(def_id)),
ty::Generator(def_id, _, _) => Some(GeneratorSimplifiedType(def_id)),
ty::GeneratorWitness(tys) => Some(GeneratorWitnessSimplifiedType(tys.skip_binder().len())),
ty::GeneratorWitnessMIR(def_id, _) => Some(GeneratorWitnessMIRSimplifiedType(def_id)),
ty::Never => Some(NeverSimplifiedType),
ty::Tuple(tys) => Some(TupleSimplifiedType(tys.len())),
ty::FnPtr(f) => Some(FunctionSimplifiedType(f.skip_binder().inputs().len())),
ty::Placeholder(..) => Some(PlaceholderSimplifiedType),
ty::Ref(_, _, mutbl) => Some(SimplifiedType::Ref(mutbl)),
ty::FnDef(def_id, _) | ty::Closure(def_id, _) => Some(SimplifiedType::Closure(def_id)),
ty::Generator(def_id, _, _) => Some(SimplifiedType::Generator(def_id)),
ty::GeneratorWitness(tys) => {
Some(SimplifiedType::GeneratorWitness(tys.skip_binder().len()))
}
ty::GeneratorWitnessMIR(def_id, _) => Some(SimplifiedType::GeneratorWitnessMIR(def_id)),
ty::Never => Some(SimplifiedType::Never),
ty::Tuple(tys) => Some(SimplifiedType::Tuple(tys.len())),
ty::FnPtr(f) => Some(SimplifiedType::Function(f.skip_binder().inputs().len())),
ty::Placeholder(..) => Some(SimplifiedType::Placeholder),
ty::Param(_) => match treat_params {
TreatParams::ForLookup | TreatParams::NextSolverLookup => {
Some(PlaceholderSimplifiedType)
Some(SimplifiedType::Placeholder)
}
TreatParams::AsCandidateKey => None,
},
@ -147,11 +147,13 @@ pub fn simplify_type<'tcx>(
//
// We will have to be careful with lazy normalization here.
// FIXME(lazy_normalization): This is probably not right...
TreatParams::ForLookup if !ty.has_non_region_infer() => Some(PlaceholderSimplifiedType),
TreatParams::NextSolverLookup => Some(PlaceholderSimplifiedType),
TreatParams::ForLookup if !ty.has_non_region_infer() => {
Some(SimplifiedType::Placeholder)
}
TreatParams::NextSolverLookup => Some(SimplifiedType::Placeholder),
TreatParams::ForLookup | TreatParams::AsCandidateKey => None,
},
ty::Foreign(def_id) => Some(ForeignSimplifiedType(def_id)),
ty::Foreign(def_id) => Some(SimplifiedType::Foreign(def_id)),
ty::Bound(..) | ty::Infer(_) | ty::Error(_) => None,
}
}
@ -159,12 +161,12 @@ pub fn simplify_type<'tcx>(
impl SimplifiedType {
pub fn def(self) -> Option<DefId> {
match self {
AdtSimplifiedType(d)
| ForeignSimplifiedType(d)
| TraitSimplifiedType(d)
| ClosureSimplifiedType(d)
| GeneratorSimplifiedType(d)
| GeneratorWitnessMIRSimplifiedType(d) => Some(d),
SimplifiedType::Adt(d)
| SimplifiedType::Foreign(d)
| SimplifiedType::Trait(d)
| SimplifiedType::Closure(d)
| SimplifiedType::Generator(d)
| SimplifiedType::GeneratorWitnessMIR(d) => Some(d),
_ => None,
}
}

2
compiler/rustc_trait_selection/src/solve/trait_goals.rs
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@ -686,7 +686,7 @@ impl<'tcx> EvalCtxt<'_, 'tcx> {
| ty::Tuple(_)
| ty::Adt(_, _)
// FIXME: Handling opaques here is kinda sus. Especially because we
// simplify them to PlaceholderSimplifiedType.
// simplify them to SimplifiedType::Placeholder.
| ty::Alias(ty::Opaque, _) => {
let mut disqualifying_impl = None;
self.tcx().for_each_relevant_impl_treating_projections(

4
src/librustdoc/clean/inline.rs
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@ -12,6 +12,7 @@ use rustc_hir::def::{DefKind, Res};
use rustc_hir::def_id::{DefId, DefIdSet, LocalDefId};
use rustc_hir::Mutability;
use rustc_metadata::creader::{CStore, LoadedMacro};
use rustc_middle::ty::fast_reject::SimplifiedType;
use rustc_middle::ty::{self, TyCtxt};
use rustc_span::hygiene::MacroKind;
use rustc_span::symbol::{kw, sym, Symbol};
@ -314,9 +315,8 @@ pub(crate) fn build_impls(
// * https://github.com/rust-lang/rust/pull/99917 — where the feature got used
// * https://github.com/rust-lang/rust/issues/53487 — overall tracking issue for Error
if tcx.has_attr(did, sym::rustc_has_incoherent_inherent_impls) {
use rustc_middle::ty::fast_reject::SimplifiedType::*;
let type_ =
if tcx.is_trait(did) { TraitSimplifiedType(did) } else { AdtSimplifiedType(did) };
if tcx.is_trait(did) { SimplifiedType::Trait(did) } else { SimplifiedType::Adt(did) };
for &did in tcx.incoherent_impls(type_) {
build_impl(cx, did, attrs, ret);
}

51
src/librustdoc/clean/types.rs
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@ -1776,7 +1776,6 @@ impl PrimitiveType {
}
pub(crate) fn simplified_types() -> &'static SimplifiedTypes {
use ty::fast_reject::SimplifiedType::*;
use ty::{FloatTy, IntTy, UintTy};
use PrimitiveType::*;
static CELL: OnceCell<SimplifiedTypes> = OnceCell::new();
@ -1784,38 +1783,38 @@ impl PrimitiveType {
let single = |x| iter::once(x).collect();
CELL.get_or_init(move || {
map! {
Isize => single(IntSimplifiedType(IntTy::Isize)),
I8 => single(IntSimplifiedType(IntTy::I8)),
I16 => single(IntSimplifiedType(IntTy::I16)),
I32 => single(IntSimplifiedType(IntTy::I32)),
I64 => single(IntSimplifiedType(IntTy::I64)),
I128 => single(IntSimplifiedType(IntTy::I128)),
Usize => single(UintSimplifiedType(UintTy::Usize)),
U8 => single(UintSimplifiedType(UintTy::U8)),
U16 => single(UintSimplifiedType(UintTy::U16)),
U32 => single(UintSimplifiedType(UintTy::U32)),
U64 => single(UintSimplifiedType(UintTy::U64)),
U128 => single(UintSimplifiedType(UintTy::U128)),
F32 => single(FloatSimplifiedType(FloatTy::F32)),
F64 => single(FloatSimplifiedType(FloatTy::F64)),
Str => single(StrSimplifiedType),
Bool => single(BoolSimplifiedType),
Char => single(CharSimplifiedType),
Array => single(ArraySimplifiedType),
Slice => single(SliceSimplifiedType),
Isize => single(SimplifiedType::Int(IntTy::Isize)),
I8 => single(SimplifiedType::Int(IntTy::I8)),
I16 => single(SimplifiedType::Int(IntTy::I16)),
I32 => single(SimplifiedType::Int(IntTy::I32)),
I64 => single(SimplifiedType::Int(IntTy::I64)),
I128 => single(SimplifiedType::Int(IntTy::I128)),
Usize => single(SimplifiedType::Uint(UintTy::Usize)),
U8 => single(SimplifiedType::Uint(UintTy::U8)),
U16 => single(SimplifiedType::Uint(UintTy::U16)),
U32 => single(SimplifiedType::Uint(UintTy::U32)),
U64 => single(SimplifiedType::Uint(UintTy::U64)),
U128 => single(SimplifiedType::Uint(UintTy::U128)),
F32 => single(SimplifiedType::Float(FloatTy::F32)),
F64 => single(SimplifiedType::Float(FloatTy::F64)),
Str => single(SimplifiedType::Str),
Bool => single(SimplifiedType::Bool),
Char => single(SimplifiedType::Char),
Array => single(SimplifiedType::Array),
Slice => single(SimplifiedType::Slice),
// FIXME: If we ever add an inherent impl for tuples
// with different lengths, they won't show in rustdoc.
//
// Either manually update this arrayvec at this point
// or start with a more complex refactoring.
Tuple => [TupleSimplifiedType(1), TupleSimplifiedType(2), TupleSimplifiedType(3)].into(),
Unit => single(TupleSimplifiedType(0)),
RawPointer => [PtrSimplifiedType(Mutability::Not), PtrSimplifiedType(Mutability::Mut)].into_iter().collect(),
Reference => [RefSimplifiedType(Mutability::Not), RefSimplifiedType(Mutability::Mut)].into_iter().collect(),
Tuple => [SimplifiedType::Tuple(1), SimplifiedType::Tuple(2), SimplifiedType::Tuple(3)].into(),
Unit => single(SimplifiedType::Tuple(0)),
RawPointer => [SimplifiedType::Ptr(Mutability::Not), SimplifiedType::Ptr(Mutability::Mut)].into_iter().collect(),
Reference => [SimplifiedType::Ref(Mutability::Not), SimplifiedType::Ref(Mutability::Mut)].into_iter().collect(),
// FIXME: This will be wrong if we ever add inherent impls
// for function pointers.
Fn => single(FunctionSimplifiedType(1)),
Never => single(NeverSimplifiedType),
Fn => single(SimplifiedType::Function(1)),
Never => single(SimplifiedType::Never),
}
})
}

8
src/tools/clippy/clippy_lints/src/utils/internal_lints/invalid_paths.rs
View File

@ -74,10 +74,10 @@ pub fn check_path(cx: &LateContext<'_>, path: &[&str]) -> bool {
let lang_items = cx.tcx.lang_items();
// This list isn't complete, but good enough for our current list of paths.
let incoherent_impls = [
SimplifiedType::FloatSimplifiedType(FloatTy::F32),
SimplifiedType::FloatSimplifiedType(FloatTy::F64),
SimplifiedType::SliceSimplifiedType,
SimplifiedType::StrSimplifiedType,
SimplifiedType::Float(FloatTy::F32),
SimplifiedType::Float(FloatTy::F64),
SimplifiedType::Slice,
SimplifiedType::Str,
]
.iter()
.flat_map(|&ty| cx.tcx.incoherent_impls(ty).iter().copied());

47
src/tools/clippy/clippy_utils/src/lib.rs
View File

@ -100,10 +100,7 @@ use rustc_middle::mir::ConstantKind;
use rustc_middle::ty as rustc_ty;
use rustc_middle::ty::adjustment::{Adjust, Adjustment, AutoBorrow};
use rustc_middle::ty::binding::BindingMode;
use rustc_middle::ty::fast_reject::SimplifiedType::{
ArraySimplifiedType, BoolSimplifiedType, CharSimplifiedType, FloatSimplifiedType, IntSimplifiedType,
PtrSimplifiedType, SliceSimplifiedType, StrSimplifiedType, UintSimplifiedType,
};
use rustc_middle::ty::fast_reject::SimplifiedType;
use rustc_middle::ty::layout::IntegerExt;
use rustc_middle::ty::{
BorrowKind, ClosureKind, FloatTy, IntTy, Ty, TyCtxt, TypeAndMut, TypeVisitableExt, UintTy, UpvarCapture,
@ -512,30 +509,30 @@ pub fn path_def_id<'tcx>(cx: &LateContext<'_>, maybe_path: &impl MaybePath<'tcx>
fn find_primitive_impls<'tcx>(tcx: TyCtxt<'tcx>, name: &str) -> impl Iterator<Item = DefId> + 'tcx {
let ty = match name {
"bool" => BoolSimplifiedType,
"char" => CharSimplifiedType,
"str" => StrSimplifiedType,
"array" => ArraySimplifiedType,
"slice" => SliceSimplifiedType,
"bool" => SimplifiedType::Bool,
"char" => SimplifiedType::Char,
"str" => SimplifiedType::Str,
"array" => SimplifiedType::Array,
"slice" => SimplifiedType::Slice,
// FIXME: rustdoc documents these two using just `pointer`.
//
// Maybe this is something we should do here too.
"const_ptr" => PtrSimplifiedType(Mutability::Not),
"mut_ptr" => PtrSimplifiedType(Mutability::Mut),
"isize" => IntSimplifiedType(IntTy::Isize),
"i8" => IntSimplifiedType(IntTy::I8),
"i16" => IntSimplifiedType(IntTy::I16),
"i32" => IntSimplifiedType(IntTy::I32),
"i64" => IntSimplifiedType(IntTy::I64),
"i128" => IntSimplifiedType(IntTy::I128),
"usize" => UintSimplifiedType(UintTy::Usize),
"u8" => UintSimplifiedType(UintTy::U8),
"u16" => UintSimplifiedType(UintTy::U16),
"u32" => UintSimplifiedType(UintTy::U32),
"u64" => UintSimplifiedType(UintTy::U64),
"u128" => UintSimplifiedType(UintTy::U128),
"f32" => FloatSimplifiedType(FloatTy::F32),
"f64" => FloatSimplifiedType(FloatTy::F64),
"const_ptr" => SimplifiedType::Ptr(Mutability::Not),
"mut_ptr" => SimplifiedType::Ptr(Mutability::Mut),
"isize" => SimplifiedType::Int(IntTy::Isize),
"i8" => SimplifiedType::Int(IntTy::I8),
"i16" => SimplifiedType::Int(IntTy::I16),
"i32" => SimplifiedType::Int(IntTy::I32),
"i64" => SimplifiedType::Int(IntTy::I64),
"i128" => SimplifiedType::Int(IntTy::I128),
"usize" => SimplifiedType::Uint(UintTy::Usize),
"u8" => SimplifiedType::Uint(UintTy::U8),
"u16" => SimplifiedType::Uint(UintTy::U16),
"u32" => SimplifiedType::Uint(UintTy::U32),
"u64" => SimplifiedType::Uint(UintTy::U64),
"u128" => SimplifiedType::Uint(UintTy::U128),
"f32" => SimplifiedType::Float(FloatTy::F32),
"f64" => SimplifiedType::Float(FloatTy::F64),
_ => return [].iter().copied(),
};