Struct abi_stable::marker_type::UnsafeIgnoredType

pub struct UnsafeIgnoredType<T: ?Sized> {
    pub _inner: PhantomData<T>,
}

MarkerType which ignores its type parameter in its StableAbi implementation.

Safety

Unsafe is part of its name, because users can violate memory safety if they depend on the value of the type parameter passed to UnsafeIgnoredType for safety, since the type parameter is ignored when type checking dynamic libraries.

Fields

_inner: PhantomData<T>

This field must be public to promise (for semver) that a repr change would be a breaking change (see https://github.com/rust-lang/rust/issues/78586), which is important as this is used as a zero-sized type in repr(transparent) structs.

Implementations

impl<T: ?Sized> UnsafeIgnoredType<T>

pub const DEFAULT: Self = _

Constructs an UnsafeIgnoredType.

pub const NEW: Self = _

Constructs an UnsafeIgnoredType.

Trait Implementations

impl<T: ?Sized> Clone for UnsafeIgnoredType<T>

fn clone(&self) -> Self

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<T: ?Sized> Default for UnsafeIgnoredType<T>

fn default() -> Self

Returns the “default value” for a type.

impl<T> GetStaticEquivalent_ for UnsafeIgnoredType<T>

type StaticEquivalent = ()

The 'static equivalent of Self

impl<T> StableAbi for UnsafeIgnoredType<T>

type IsNonZeroType = False

Whether this type has a single invalid bit-pattern.

const LAYOUT: &'static TypeLayout = _

The layout of the type provided by implementors.

const ABI_CONSTS: AbiConsts = _

const-equivalents of the associated types.

impl<T: ?Sized> Copy for UnsafeIgnoredType<T>