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Make everything builtin!

This commit is contained in:
Michael Goulet 2023-07-24 22:02:52 +00:00
parent de81007d13
commit a7ed9c1da7
23 changed files with 345 additions and 444 deletions

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@ -43,7 +43,7 @@ macro_rules! span_bug {
#[macro_export]
macro_rules! CloneLiftImpls {
($($ty:ty,)+) => {
($($ty:ty),+ $(,)?) => {
$(
impl<'tcx> $crate::ty::Lift<'tcx> for $ty {
type Lifted = Self;
@ -59,7 +59,7 @@ macro_rules! CloneLiftImpls {
/// allocated data** (i.e., don't need to be folded).
#[macro_export]
macro_rules! TrivialTypeTraversalImpls {
($($ty:ty,)+) => {
($($ty:ty),+ $(,)?) => {
$(
impl<'tcx> $crate::ty::fold::TypeFoldable<$crate::ty::TyCtxt<'tcx>> for $ty {
fn try_fold_with<F: $crate::ty::fold::FallibleTypeFolder<$crate::ty::TyCtxt<'tcx>>>(

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@ -178,9 +178,7 @@ impl<'tcx> graph::WithPredecessors for BasicBlocks<'tcx> {
}
}
TrivialTypeTraversalAndLiftImpls! {
Cache,
}
TrivialTypeTraversalAndLiftImpls! { Cache }
impl<S: Encoder> Encodable<S> for Cache {
#[inline]

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@ -66,9 +66,7 @@ impl Into<ErrorGuaranteed> for ReportedErrorInfo {
}
}
TrivialTypeTraversalAndLiftImpls! {
ErrorHandled,
}
TrivialTypeTraversalAndLiftImpls! { ErrorHandled }
pub type EvalToAllocationRawResult<'tcx> = Result<ConstAlloc<'tcx>, ErrorHandled>;
pub type EvalToConstValueResult<'tcx> = Result<ConstValue<'tcx>, ErrorHandled>;

View file

@ -706,9 +706,7 @@ pub enum BindingForm<'tcx> {
RefForGuard,
}
TrivialTypeTraversalAndLiftImpls! {
BindingForm<'tcx>,
}
TrivialTypeTraversalAndLiftImpls! { BindingForm<'tcx> }
mod binding_form_impl {
use rustc_data_structures::stable_hasher::{HashStable, StableHasher};

View file

@ -649,46 +649,31 @@ pub enum ImplSource<'tcx, N> {
/// for some type parameter. The `Vec<N>` represents the
/// obligations incurred from normalizing the where-clause (if
/// any).
Param(Vec<N>, ty::BoundConstness),
Param(ty::BoundConstness, Vec<N>),
/// Virtual calls through an object.
Object(ImplSourceObjectData<N>),
/// Successful resolution for a builtin trait.
Builtin(Vec<N>),
// Unsizing a tuple like `(A, B, ..., X)` to `(A, B, ..., Y)` if `X` unsizes to `Y`
TupleUnsizing(Vec<N>),
/// ImplSource for trait upcasting coercion
TraitUpcasting(ImplSourceTraitUpcastingData<N>),
/// Successful resolution for a builtin impl.
Builtin(BuiltinImplSource, Vec<N>),
}
impl<'tcx, N> ImplSource<'tcx, N> {
pub fn nested_obligations(self) -> Vec<N> {
match self {
ImplSource::UserDefined(i) => i.nested,
ImplSource::Param(n, _) | ImplSource::Builtin(n) | ImplSource::TupleUnsizing(n) => n,
ImplSource::Object(d) => d.nested,
ImplSource::TraitUpcasting(d) => d.nested,
ImplSource::Param(_, n) | ImplSource::Builtin(_, n) => n,
}
}
pub fn borrow_nested_obligations(&self) -> &[N] {
match self {
ImplSource::UserDefined(i) => &i.nested,
ImplSource::Param(n, _) | ImplSource::Builtin(n) | ImplSource::TupleUnsizing(n) => &n,
ImplSource::Object(d) => &d.nested,
ImplSource::TraitUpcasting(d) => &d.nested,
ImplSource::Param(_, n) | ImplSource::Builtin(_, n) => &n,
}
}
pub fn borrow_nested_obligations_mut(&mut self) -> &mut [N] {
match self {
ImplSource::UserDefined(i) => &mut i.nested,
ImplSource::Param(n, _) | ImplSource::Builtin(n) | ImplSource::TupleUnsizing(n) => n,
ImplSource::Object(d) => &mut d.nested,
ImplSource::TraitUpcasting(d) => &mut d.nested,
ImplSource::Param(_, n) | ImplSource::Builtin(_, n) => n,
}
}
@ -702,20 +687,9 @@ impl<'tcx, N> ImplSource<'tcx, N> {
args: i.args,
nested: i.nested.into_iter().map(f).collect(),
}),
ImplSource::Param(n, ct) => ImplSource::Param(n.into_iter().map(f).collect(), ct),
ImplSource::Builtin(n) => ImplSource::Builtin(n.into_iter().map(f).collect()),
ImplSource::TupleUnsizing(n) => {
ImplSource::TupleUnsizing(n.into_iter().map(f).collect())
}
ImplSource::Object(o) => ImplSource::Object(ImplSourceObjectData {
vtable_base: o.vtable_base,
nested: o.nested.into_iter().map(f).collect(),
}),
ImplSource::TraitUpcasting(d) => {
ImplSource::TraitUpcasting(ImplSourceTraitUpcastingData {
vtable_vptr_slot: d.vtable_vptr_slot,
nested: d.nested.into_iter().map(f).collect(),
})
ImplSource::Param(ct, n) => ImplSource::Param(ct, n.into_iter().map(f).collect()),
ImplSource::Builtin(source, n) => {
ImplSource::Builtin(source, n.into_iter().map(f).collect())
}
}
}
@ -739,30 +713,32 @@ pub struct ImplSourceUserDefinedData<'tcx, N> {
pub nested: Vec<N>,
}
#[derive(Clone, PartialEq, Eq, TyEncodable, TyDecodable, HashStable, Lift)]
#[derive(TypeFoldable, TypeVisitable)]
pub struct ImplSourceTraitUpcastingData<N> {
/// The vtable is formed by concatenating together the method lists of
/// the base object trait and all supertraits, pointers to supertrait vtable will
/// be provided when necessary; this is the position of `upcast_trait_ref`'s vtable
/// within that vtable.
pub vtable_vptr_slot: Option<usize>,
pub nested: Vec<N>,
}
#[derive(PartialEq, Eq, Clone, TyEncodable, TyDecodable, HashStable, Lift)]
#[derive(TypeFoldable, TypeVisitable)]
pub struct ImplSourceObjectData<N> {
#[derive(Copy, Clone, PartialEq, Eq, TyEncodable, TyDecodable, HashStable, Debug)]
pub enum BuiltinImplSource {
/// Some builtin impl we don't need to differentiate. This should be used
/// unless more specific information is necessary.
Misc,
/// A builtin impl for trait objects.
///
/// The vtable is formed by concatenating together the method lists of
/// the base object trait and all supertraits, pointers to supertrait vtable will
/// be provided when necessary; this is the start of `upcast_trait_ref`'s methods
/// in that vtable.
pub vtable_base: usize,
pub nested: Vec<N>,
Object { vtable_base: usize },
/// The vtable is formed by concatenating together the method lists of
/// the base object trait and all supertraits, pointers to supertrait vtable will
/// be provided when necessary; this is the position of `upcast_trait_ref`'s vtable
/// within that vtable.
TraitUpcasting { vtable_vptr_slot: Option<usize> },
/// Unsizing a tuple like `(A, B, ..., X)` to `(A, B, ..., Y)` if `X` unsizes to `Y`.
///
/// This needs to be a separate variant as it is still unstable and we need to emit
/// a feature error when using it on stable.
TupleUnsizing,
}
TrivialTypeTraversalAndLiftImpls! { BuiltinImplSource }
#[derive(Clone, Debug, PartialEq, Eq, Hash, HashStable, PartialOrd, Ord)]
pub enum ObjectSafetyViolation {
/// `Self: Sized` declared on the trait.

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@ -304,9 +304,7 @@ impl From<ErrorGuaranteed> for OverflowError {
}
}
TrivialTypeTraversalAndLiftImpls! {
OverflowError,
}
TrivialTypeTraversalAndLiftImpls! { OverflowError }
impl<'tcx> From<OverflowError> for SelectionError<'tcx> {
fn from(overflow_error: OverflowError) -> SelectionError<'tcx> {

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@ -6,20 +6,16 @@ use std::fmt;
impl<'tcx, N: fmt::Debug> fmt::Debug for traits::ImplSource<'tcx, N> {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
match *self {
super::ImplSource::UserDefined(ref v) => write!(f, "{:?}", v),
match self {
super::ImplSource::UserDefined(v) => write!(f, "{:?}", v),
super::ImplSource::Builtin(ref d) => write!(f, "{:?}", d),
super::ImplSource::Object(ref d) => write!(f, "{:?}", d),
super::ImplSource::Param(ref n, ct) => {
write!(f, "ImplSourceParamData({:?}, {:?})", n, ct)
super::ImplSource::Builtin(source, d) => {
write!(f, "Builtin({source:?}, {d:?})")
}
super::ImplSource::TupleUnsizing(ref d) => write!(f, "{:?}", d),
super::ImplSource::TraitUpcasting(ref d) => write!(f, "{:?}", d),
super::ImplSource::Param(ct, n) => {
write!(f, "ImplSourceParamData({:?}, {:?})", n, ct)
}
}
}
}
@ -33,23 +29,3 @@ impl<'tcx, N: fmt::Debug> fmt::Debug for traits::ImplSourceUserDefinedData<'tcx,
)
}
}
impl<N: fmt::Debug> fmt::Debug for traits::ImplSourceTraitUpcastingData<N> {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
write!(
f,
"ImplSourceTraitUpcastingData(vtable_vptr_slot={:?}, nested={:?})",
self.vtable_vptr_slot, self.nested
)
}
}
impl<N: fmt::Debug> fmt::Debug for traits::ImplSourceObjectData<N> {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
write!(
f,
"ImplSourceObjectData(vtable_base={}, nested={:?})",
self.vtable_base, self.nested
)
}
}

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@ -27,9 +27,7 @@ impl From<ErrorGuaranteed> for NotConstEvaluatable {
}
}
TrivialTypeTraversalAndLiftImpls! {
NotConstEvaluatable,
}
TrivialTypeTraversalAndLiftImpls! { NotConstEvaluatable }
pub type BoundAbstractConst<'tcx> = Result<Option<EarlyBinder<ty::Const<'tcx>>>, ErrorGuaranteed>;

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@ -6,7 +6,7 @@ pub enum BindingMode {
BindByValue(Mutability),
}
TrivialTypeTraversalAndLiftImpls! { BindingMode, }
TrivialTypeTraversalAndLiftImpls! { BindingMode }
impl BindingMode {
pub fn convert(BindingAnnotation(by_ref, mutbl): BindingAnnotation) -> BindingMode {