pub struct OpTy<'tcx, Prov: Provenance = AllocId> {
    op: Operand<Prov>,
    pub layout: TyAndLayout<'tcx>,
    pub align: Option<Align>,
}

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§op: Operand<Prov>§layout: TyAndLayout<'tcx>§align: Option<Align>

rustc does not have a proper way to represent the type of a field of a repr(packed) struct: it needs to have a different alignment than the field type would usually have. So we represent this here with a separate field that “overwrites” layout.align. This means layout.align should never be used for an OpTy! None means “alignment does not matter since this is a by-value operand” (Operand::Immediate); this field is only relevant for Operand::Indirect. Also CTFE ignores alignment anyway, so this is for Miri only.

Implementations§

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impl<'tcx, Prov: Provenance> OpTy<'tcx, Prov>

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pub(super) fn op(&self) -> &Operand<Prov>

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impl<'tcx, Prov: Provenance> OpTy<'tcx, Prov>

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pub fn as_mplace_or_imm( &self ) -> Either<MPlaceTy<'tcx, Prov>, ImmTy<'tcx, Prov>>

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pub fn assert_mem_place(&self) -> MPlaceTy<'tcx, Prov>

Trait Implementations§

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impl<'tcx, Prov: Clone + Provenance> Clone for OpTy<'tcx, Prov>

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fn clone(&self) -> OpTy<'tcx, Prov>

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<Prov: Provenance> Debug for OpTy<'_, Prov>

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more
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impl<'tcx, Prov: Provenance> From<ImmTy<'tcx, Prov>> for OpTy<'tcx, Prov>

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fn from(val: ImmTy<'tcx, Prov>) -> Self

Converts to this type from the input type.
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impl<'tcx, Prov: Provenance> From<MPlaceTy<'tcx, Prov>> for OpTy<'tcx, Prov>

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fn from(mplace: MPlaceTy<'tcx, Prov>) -> Self

Converts to this type from the input type.
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impl<'tcx, Prov: Provenance> Projectable<'tcx, Prov> for OpTy<'tcx, Prov>

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fn layout(&self) -> TyAndLayout<'tcx>

Get the layout.
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fn meta(&self) -> MemPlaceMeta<Prov>

Get the metadata of a wide value.
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fn offset_with_meta<'mir, M: Machine<'mir, 'tcx, Provenance = Prov>>( &self, offset: Size, meta: MemPlaceMeta<Prov>, layout: TyAndLayout<'tcx>, ecx: &InterpCx<'mir, 'tcx, M> ) -> InterpResult<'tcx, Self>

Offset the value by the given amount, replacing the layout and metadata.
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fn to_op<'mir, M: Machine<'mir, 'tcx, Provenance = Prov>>( &self, _ecx: &InterpCx<'mir, 'tcx, M> ) -> InterpResult<'tcx, OpTy<'tcx, M::Provenance>>

Convert this to an OpTy. This might be an irreversible transformation, but is useful for reading from this thing.
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fn len<'mir, M: Machine<'mir, 'tcx, Provenance = Prov>>( &self, ecx: &InterpCx<'mir, 'tcx, M> ) -> InterpResult<'tcx, u64>

Get the length of a slice/string/array stored here.
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fn offset<'mir, M: Machine<'mir, 'tcx, Provenance = Prov>>( &self, offset: Size, layout: TyAndLayout<'tcx>, ecx: &InterpCx<'mir, 'tcx, M> ) -> InterpResult<'tcx, Self>

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fn transmute<'mir, M: Machine<'mir, 'tcx, Provenance = Prov>>( &self, layout: TyAndLayout<'tcx>, ecx: &InterpCx<'mir, 'tcx, M> ) -> InterpResult<'tcx, Self>

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impl<'tcx, Prov: Provenance> Readable<'tcx, Prov> for OpTy<'tcx, Prov>

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fn as_mplace_or_imm(&self) -> Either<MPlaceTy<'tcx, Prov>, ImmTy<'tcx, Prov>>

Auto Trait Implementations§

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impl<'tcx, Prov = AllocId> !RefUnwindSafe for OpTy<'tcx, Prov>

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impl<'tcx, Prov = AllocId> !Send for OpTy<'tcx, Prov>

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impl<'tcx, Prov = AllocId> !Sync for OpTy<'tcx, Prov>

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impl<'tcx, Prov> Unpin for OpTy<'tcx, Prov>where Prov: Unpin,

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impl<'tcx, Prov = AllocId> !UnwindSafe for OpTy<'tcx, Prov>

Blanket Implementations§

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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<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> 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<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<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.

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.