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

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§tcx: C§param_env: ParamEnv<'tcx>

Trait Implementations§

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

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

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl<'tcx, T: HasDataLayout> HasDataLayout for LayoutCx<'tcx, T>

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

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

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

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

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

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

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type TargetDataLayoutRef = &'tcx TargetDataLayout

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fn delay_bug(&self, txt: String)

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

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fn scalar_pair(&self, a: Scalar, b: Scalar) -> LayoutS

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fn univariant( &self, dl: &TargetDataLayout, fields: &IndexSlice<FieldIdx, Layout<'_>>, repr: &ReprOptions, kind: StructKind ) -> Option<LayoutS>

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fn layout_of_never_type(&self) -> LayoutS

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fn layout_of_struct_or_enum( &self, repr: &ReprOptions, variants: &IndexSlice<VariantIdx, IndexVec<FieldIdx, Layout<'_>>>, 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>

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fn layout_of_union( &self, repr: &ReprOptions, variants: &IndexSlice<VariantIdx, IndexVec<FieldIdx, Layout<'_>>> ) -> Option<LayoutS>

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

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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).
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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
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fn layout_tcx_at_span(&self) -> Span

Span to use for tcx.at(span), from layout_of.
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impl<'tcx> LayoutOfHelpers<'tcx> for LayoutCx<'tcx, TyCtxtAt<'tcx>>

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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).
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fn layout_tcx_at_span(&self) -> Span

Span to use for tcx.at(span), from layout_of.
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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
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impl<'tcx, C: Copy> Copy for LayoutCx<'tcx, C>

Auto Trait Implementations§

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

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

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

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

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

Blanket Implementations§

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impl<T> Aligned for T

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const ALIGN: Alignment = _

Alignment of Self.
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impl<T> Any for Twhere T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<'tcx, T> ArenaAllocatable<'tcx, IsCopy> for Twhere T: Copy,

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

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

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

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for Twhere T: ?Sized,

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

Mutably borrows from an owned value. Read more
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impl<T, R> CollectAndApply<T, R> for T

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

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

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type Output = R

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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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

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fn into(self) -> U

Calls U::from(self).

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

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impl<P> IntoQueryParam<P> for P

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

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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.
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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.
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impl<T> MaybeResult<T> for T

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type Error = !

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

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

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impl<T> PointerArithmetic for Twhere T: HasDataLayout,

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fn pointer_size(&self) -> Size

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fn max_size_of_val(&self) -> Size

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fn target_usize_max(&self) -> u64

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fn target_isize_min(&self) -> i64

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fn target_isize_max(&self) -> i64

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

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

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

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

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

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impl<T> ToOwned for Twhere T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<'tcx, T> ToPredicate<'tcx, T> for T

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fn to_predicate(self, _tcx: TyCtxt<'tcx>) -> T

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

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for Twhere U: TryFrom<T>,

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

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
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impl<Tcx, T> Value<Tcx> for Twhere Tcx: DepContext,

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default fn from_cycle_error( tcx: Tcx, cycle: &[QueryInfo], _guar: ErrorGuaranteed ) -> T

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