Enum hir_ty::PointerCast

pub enum PointerCast {
    ReifyFnPointer,
    UnsafeFnPointer,
    ClosureFnPointer(Safety),
    MutToConstPointer,
    ArrayToPointer,
    Unsize,
}

Variants

ReifyFnPointer

Go from a fn-item type to a fn-pointer type.

UnsafeFnPointer

Go from a safe fn pointer to an unsafe fn pointer.

ClosureFnPointer(Safety)

Go from a non-capturing closure to an fn pointer or an unsafe fn pointer. It cannot convert a closure that requires unsafe.

MutToConstPointer

Go from a mut raw pointer to a const raw pointer.

ArrayToPointer

Go from *const [T; N] to *const T

Unsize

Unsize a pointer/reference value, e.g., &[T; n] to &[T]. Note that the source could be a thin or fat pointer. This will do things like convert thin pointers to fat pointers, or convert structs containing thin pointers to structs containing fat pointers, or convert between fat pointers. We don’t store the details of how the transform is done (in fact, we don’t know that, because it might depend on the precise type parameters). We just store the target type. Codegen backends and miri figure out what has to be done based on the precise source/target type at hand.

Trait Implementations

impl Clone for PointerCast

fn clone(&self) -> PointerCast

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for PointerCast

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

Formats the value using the given formatter.

impl Hash for PointerCast

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for PointerCast

fn eq(&self, other: &PointerCast) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Copy for PointerCast

impl Eq for PointerCast

impl StructuralPartialEq for PointerCast