Enum rustc_typeck::check::cast::PointerKind

pub(in check::cast) enum PointerKind<'tcx> {
    Thin,
    Vtable(Option<DefId>),
    Length,
    OfProjection(&'tcx ProjectionTy<'tcx>),
    OfOpaque(DefId, SubstsRef<'tcx>),
    OfParam(&'tcx ParamTy),
}

The kind of pointer and associated metadata (thin, length or vtable) - we only allow casts between fat pointers if their metadata have the same kind.

Variants

Thin

No metadata attached, ie pointer to sized type or foreign type

Vtable(Option<DefId>)

A trait object

Length

Slice

OfProjection(&'tcx ProjectionTy<'tcx>)

The unsize info of this projection

OfOpaque(DefId, SubstsRef<'tcx>)

The unsize info of this opaque ty

OfParam(&'tcx ParamTy)

The unsize info of this parameter

Trait Implementations

impl<'tcx> Clone for PointerKind<'tcx>

pub fn clone(&self) -> PointerKind<'tcx>

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<'tcx> Copy for PointerKind<'tcx>

impl<'tcx> Eq for PointerKind<'tcx>

impl<'tcx> PartialEq<PointerKind<'tcx>> for PointerKind<'tcx>

pub fn eq(&self, other: &PointerKind<'tcx>) -> bool

This method tests for self and other values to be equal, and is used by ==.

pub fn ne(&self, other: &PointerKind<'tcx>) -> bool

This method tests for !=.

impl<'tcx> StructuralEq for PointerKind<'tcx>

impl<'tcx> StructuralPartialEq for PointerKind<'tcx>