Struct ImmTy

pub struct ImmTy<'tcx, Prov: Provenance = CtfeProvenance> {
    imm: Immediate<Prov>,
    pub layout: TyAndLayout<'tcx>,
}

Fields

imm: Immediate<Prov>

layout: TyAndLayout<'tcx>

Implementations

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

pub fn from_scalar(val: Scalar<Prov>, layout: TyAndLayout<'tcx>) -> Self

pub fn from_scalar_pair( a: Scalar<Prov>, b: Scalar<Prov>, layout: TyAndLayout<'tcx>, ) -> Self

pub fn from_immediate(imm: Immediate<Prov>, layout: TyAndLayout<'tcx>) -> Self

pub fn uninit(layout: TyAndLayout<'tcx>) -> Self

pub fn from_scalar_int(s: ScalarInt, layout: TyAndLayout<'tcx>) -> Self

pub fn from_uint(i: impl Into<u128>, layout: TyAndLayout<'tcx>) -> Self

pub fn from_int(i: impl Into<i128>, layout: TyAndLayout<'tcx>) -> Self

pub fn from_bool(b: bool, tcx: TyCtxt<'tcx>) -> Self

pub fn from_ordering(c: Ordering, tcx: TyCtxt<'tcx>) -> Self

pub fn from_pair(a: Self, b: Self, tcx: TyCtxt<'tcx>) -> Self

pub fn to_scalar_int(&self) -> InterpResult<'tcx, ScalarInt>

Return the immediate as a ScalarInt. Ensures that it has the size that the layout of the immediate indicates.

pub fn to_const_int(self) -> ConstInt

pub fn to_pair( self, cx: &(impl HasTyCtxt<'tcx> + HasTypingEnv<'tcx>), ) -> (Self, Self)

fn offset_( &self, offset: Size, layout: TyAndLayout<'tcx>, cx: &impl HasDataLayout, ) -> Self

Compute the “sub-immediate” that is located within the base at the given offset with the given layout.

Trait Implementations

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

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

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<Prov: Provenance> Debug for ImmTy<'_, Prov>

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

Formats the value using the given formatter.

impl<'tcx, Prov: Provenance> Deref for ImmTy<'tcx, Prov>

type Target = Immediate<Prov>

The resulting type after dereferencing.

fn deref(&self) -> &Immediate<Prov>

Dereferences the value.

impl<Prov: Provenance> Display for ImmTy<'_, Prov>

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

Formats the value using the given formatter.

impl<'tcx, Prov: Provenance> From<ImmTy<'tcx, Prov>> for OpTy<'tcx, Prov>

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

Converts to this type from the input type.

impl<'tcx, Prov: Provenance> Projectable<'tcx, Prov> for ImmTy<'tcx, Prov>

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

Get the layout.

fn meta(&self) -> MemPlaceMeta<Prov>

Get the metadata of a wide value.

fn offset_with_meta<M: Machine<'tcx, Provenance = Prov>>( &self, offset: Size, _mode: OffsetMode, meta: MemPlaceMeta<Prov>, layout: TyAndLayout<'tcx>, ecx: &InterpCx<'tcx, M>, ) -> InterpResult<'tcx, Self>

Offset the value by the given amount, replacing the layout and metadata.

fn to_op<M: Machine<'tcx, Provenance = Prov>>( &self, _ecx: &InterpCx<'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.

fn len<M: Machine<'tcx, Provenance = Prov>>( &self, ecx: &InterpCx<'tcx, M>, ) -> InterpResult<'tcx, u64>

Get the length of a slice/string/array stored here.

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

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

This does an offset-by-zero, which is effectively a transmute. Note however that not all transmutes are supported by all projectables – specifically, if this is an OpTy or ImmTy, the new layout must have almost the same ABI as the old one (only changing the valid_range is allowed and turning integers into pointers).

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.