Struct rustc_middle::ty::layout::LayoutCx

source ·
pub struct LayoutCx<'tcx, C> {
    pub tcx: C,
    pub param_env: ParamEnv<'tcx>,
}

Fields§

§tcx: C§param_env: ParamEnv<'tcx>

Trait Implementations§

source§

impl<'tcx, C: Clone> Clone for LayoutCx<'tcx, C>

source§

fn clone(&self) -> LayoutCx<'tcx, C>

Returns a copy of the value. Read more
1.0.0 · source§

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
source§

impl<'tcx, T: HasDataLayout> HasDataLayout for LayoutCx<'tcx, T>

source§

impl<'tcx, C> HasParamEnv<'tcx> for LayoutCx<'tcx, C>

source§

fn param_env(&self) -> ParamEnv<'tcx>

source§

impl<'tcx, T: HasTargetSpec> HasTargetSpec for LayoutCx<'tcx, T>

source§

impl<'tcx, T: HasTyCtxt<'tcx>> HasTyCtxt<'tcx> for LayoutCx<'tcx, T>

source§

fn tcx(&self) -> TyCtxt<'tcx>

source§

impl<'tcx, T: HasWasmCAbiOpt> HasWasmCAbiOpt for LayoutCx<'tcx, T>

source§

impl<'tcx> LayoutCalculator for LayoutCx<'tcx, TyCtxt<'tcx>>

§

type TargetDataLayoutRef = &'tcx TargetDataLayout

source§

fn delayed_bug(&self, txt: impl Into<Cow<'static, str>>)

source§

fn current_data_layout(&self) -> Self::TargetDataLayoutRef

source§

fn scalar_pair<FieldIdx, VariantIdx>( &self, a: Scalar, b: Scalar ) -> LayoutS<FieldIdx, VariantIdx>
where FieldIdx: Idx, VariantIdx: Idx,

source§

fn univariant<'a, FieldIdx, VariantIdx, F>( &self, dl: &TargetDataLayout, fields: &IndexSlice<FieldIdx, F>, repr: &ReprOptions, kind: StructKind ) -> Option<LayoutS<FieldIdx, VariantIdx>>
where FieldIdx: Idx, VariantIdx: Idx, F: Deref<Target = &'a LayoutS<FieldIdx, VariantIdx>> + Debug,

source§

fn layout_of_never_type<FieldIdx, VariantIdx>( &self ) -> LayoutS<FieldIdx, VariantIdx>
where FieldIdx: Idx, VariantIdx: Idx,

source§

fn layout_of_struct_or_enum<'a, FieldIdx, VariantIdx, F>( &self, repr: &ReprOptions, variants: &IndexSlice<VariantIdx, IndexVec<FieldIdx, F>>, is_enum: bool, is_unsafe_cell: bool, scalar_valid_range: (Bound<u128>, Bound<u128>), discr_range_of_repr: impl Fn(i128, i128) -> (Integer, bool), discriminants: impl Iterator<Item = (VariantIdx, i128)>, dont_niche_optimize_enum: bool, always_sized: bool ) -> Option<LayoutS<FieldIdx, VariantIdx>>
where FieldIdx: Idx, VariantIdx: Idx, F: Deref<Target = &'a LayoutS<FieldIdx, VariantIdx>> + Debug,

source§

fn layout_of_union<'a, FieldIdx, VariantIdx, F>( &self, repr: &ReprOptions, variants: &IndexSlice<VariantIdx, IndexVec<FieldIdx, F>> ) -> Option<LayoutS<FieldIdx, VariantIdx>>
where FieldIdx: Idx, VariantIdx: Idx, F: Deref<Target = &'a LayoutS<FieldIdx, VariantIdx>> + Debug,

source§

impl<'tcx> LayoutOfHelpers<'tcx> for LayoutCx<'tcx, TyCtxt<'tcx>>

§

type LayoutOfResult = Result<TyAndLayout<'tcx, Ty<'tcx>>, &'tcx LayoutError<'tcx>>

The TyAndLayout-wrapping type (or TyAndLayout itself), which will be returned from layout_of (see also handle_layout_err).
source§

fn handle_layout_err( &self, err: LayoutError<'tcx>, _: Span, _: Ty<'tcx> ) -> &'tcx LayoutError<'tcx>

Helper used for layout_of, to adapt tcx.layout_of(...) into a Self::LayoutOfResult (which does not need to be a Result<...>). Read more
source§

fn layout_tcx_at_span(&self) -> Span

Span to use for tcx.at(span), from layout_of.
source§

impl<'tcx> LayoutOfHelpers<'tcx> for LayoutCx<'tcx, TyCtxtAt<'tcx>>

§

type LayoutOfResult = Result<TyAndLayout<'tcx, Ty<'tcx>>, &'tcx LayoutError<'tcx>>

The TyAndLayout-wrapping type (or TyAndLayout itself), which will be returned from layout_of (see also handle_layout_err).
source§

fn layout_tcx_at_span(&self) -> Span

Span to use for tcx.at(span), from layout_of.
source§

fn handle_layout_err( &self, err: LayoutError<'tcx>, _: Span, _: Ty<'tcx> ) -> &'tcx LayoutError<'tcx>

Helper used for layout_of, to adapt tcx.layout_of(...) into a Self::LayoutOfResult (which does not need to be a Result<...>). Read more
source§

impl<'tcx, C: Copy> Copy for LayoutCx<'tcx, C>

Auto Trait Implementations§

§

impl<'tcx, C> DynSend for LayoutCx<'tcx, C>
where C: DynSend,

§

impl<'tcx, C> DynSync for LayoutCx<'tcx, C>
where C: DynSync,

§

impl<'tcx, C> Freeze for LayoutCx<'tcx, C>
where C: Freeze,

§

impl<'tcx, C> !RefUnwindSafe for LayoutCx<'tcx, C>

§

impl<'tcx, C> Send for LayoutCx<'tcx, C>
where C: Send,

§

impl<'tcx, C> Sync for LayoutCx<'tcx, C>
where C: Sync,

§

impl<'tcx, C> Unpin for LayoutCx<'tcx, C>
where C: Unpin,

§

impl<'tcx, C> !UnwindSafe for LayoutCx<'tcx, C>

Blanket Implementations§

source§

impl<T> Aligned for T

source§

const ALIGN: Alignment = _

Alignment of Self.
source§

impl<T> Any for T
where T: 'static + ?Sized,

source§

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
source§

impl<'tcx, T> ArenaAllocatable<'tcx, IsCopy> for T
where T: Copy,

source§

fn allocate_on<'a>(self, arena: &'a Arena<'tcx>) -> &'a mut T

source§

fn allocate_from_iter<'a>( arena: &'a Arena<'tcx>, iter: impl IntoIterator<Item = T> ) -> &'a mut [T]

source§

impl<'tcx, T> ArenaAllocatable<'tcx, IsCopy> for T
where T: Copy,

source§

fn allocate_on<'a>(self, arena: &'a Arena<'tcx>) -> &'a mut T

source§

fn allocate_from_iter<'a>( arena: &'a Arena<'tcx>, iter: impl IntoIterator<Item = T> ) -> &'a mut [T]

source§

impl<T> Borrow<T> for T
where T: ?Sized,

source§

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
source§

impl<T> BorrowMut<T> for T
where T: ?Sized,

source§

fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
source§

impl<T, R> CollectAndApply<T, R> for T

source§

fn collect_and_apply<I, F>(iter: I, f: F) -> R
where I: Iterator<Item = T>, F: FnOnce(&[T]) -> R,

Equivalent to f(&iter.collect::<Vec<_>>()).

§

type Output = R

source§

impl<T> Filterable for T

source§

fn filterable( self, filter_name: &'static str ) -> RequestFilterDataProvider<T, fn(_: DataRequest<'_>) -> bool>

Creates a filterable data provider with the given name for debugging. Read more
source§

impl<T> From<T> for T

source§

fn from(t: T) -> T

Returns the argument unchanged.

source§

impl<T> Instrument for T

source§

fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more
source§

fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more
source§

impl<T, U> Into<U> for T
where U: From<T>,

source§

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

source§

impl<T> IntoEither for T

source§

fn into_either(self, into_left: bool) -> Either<Self, Self>

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
source§

fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
where F: FnOnce(&Self) -> bool,

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
source§

impl<P> IntoQueryParam<P> for P

source§

impl<'tcx, C> LayoutOf<'tcx> for C
where C: LayoutOfHelpers<'tcx>,

source§

fn layout_of(&self, ty: Ty<'tcx>) -> Self::LayoutOfResult

Computes the layout of a type. Note that this implicitly executes in “reveal all” mode, and will normalize the input type.
source§

fn spanned_layout_of(&self, ty: Ty<'tcx>, span: Span) -> Self::LayoutOfResult

Computes the layout of a type, at span. Note that this implicitly executes in “reveal all” mode, and will normalize the input type.
source§

impl<T> MaybeResult<T> for T

§

type Error = !

source§

fn from(_: Result<T, <T as MaybeResult<T>>::Error>) -> T

source§

fn to_result(self) -> Result<T, <T as MaybeResult<T>>::Error>

source§

impl<T> Pointable for T

source§

const ALIGN: usize = _

The alignment of pointer.
§

type Init = T

The type for initializers.
source§

unsafe fn init(init: <T as Pointable>::Init) -> usize

Initializes a with the given initializer. Read more
source§

unsafe fn deref<'a>(ptr: usize) -> &'a T

Dereferences the given pointer. Read more
source§

unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

Mutably dereferences the given pointer. Read more
source§

unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. Read more
source§

impl<T> PointerArithmetic for T
where T: HasDataLayout,

source§

fn pointer_size(&self) -> Size

source§

fn max_size_of_val(&self) -> Size

source§

fn target_usize_max(&self) -> u64

source§

fn target_isize_min(&self) -> i64

source§

fn target_isize_max(&self) -> i64

source§

fn target_usize_to_isize(&self, val: u64) -> i64

source§

fn truncate_to_ptr(&self, (val, over): (u64, bool)) -> (u64, bool)

Helper function: truncate given value-“overflowed flag” pair to pointer size and update “overflowed flag” if there was an overflow. This should be called by all the other methods before returning!
source§

fn overflowing_offset(&self, val: u64, i: u64) -> (u64, bool)

source§

fn overflowing_signed_offset(&self, val: u64, i: i64) -> (u64, bool)

source§

fn offset<'tcx>(&self, val: u64, i: u64) -> InterpResult<'tcx, u64>

source§

fn signed_offset<'tcx>(&self, val: u64, i: i64) -> InterpResult<'tcx, u64>

source§

impl<T> Same for T

§

type Output = T

Should always be Self
source§

impl<T> ToOwned for T
where T: Clone,

§

type Owned = T

The resulting type after obtaining ownership.
source§

fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
source§

fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
source§

impl<T, U> TryFrom<U> for T
where U: Into<T>,

§

type Error = Infallible

The type returned in the event of a conversion error.
source§

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
source§

impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

§

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
source§

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
source§

impl<I, T, U> Upcast<I, U> for T
where U: UpcastFrom<I, T>,

source§

fn upcast(self, interner: I) -> U

source§

impl<I, T> UpcastFrom<I, T> for T

source§

fn upcast_from(from: T, _tcx: I) -> T

source§

impl<V, T> VZip<V> for T
where V: MultiLane<T>,

source§

fn vzip(self) -> V

source§

impl<Tcx, T> Value<Tcx> for T
where Tcx: DepContext,

source§

default fn from_cycle_error( tcx: Tcx, cycle_error: &CycleError, _guar: ErrorGuaranteed ) -> T

source§

impl<T> WithSubscriber for T

source§

fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>
where S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a WithDispatch wrapper. Read more
source§

fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default Subscriber to this type, returning a WithDispatch wrapper. Read more
source§

impl<'a, T> Captures<'a> for T
where T: ?Sized,

source§

impl<T> ErasedDestructor for T
where T: 'static,

source§

impl<T> MaybeSendSync for T
where T: Send + Sync,

Layout§

Note: Unable to compute type layout, possibly due to this type having generic parameters. Layout can only be computed for concrete, fully-instantiated types.