Struct ptr_union::Builder4

pub struct Builder4<A, B, C, D = NeverPtr> { /* private fields */ }

A builder for Union4.

An instance of this builder means that Union4 parameterized with the same type arguments are safe to construct.

Implementations

impl<A, B, C, D> Builder4<A, B, C, D>

pub const unsafe fn new_unchecked() -> Self

Assert that creating pointer unions of these types is safe.

Safety

The pointer types must be erasable, and their alignment must meet the requirements of the target union type.

impl<A: ErasablePtr, B: ErasablePtr, C: ErasablePtr, D: ErasablePtr> Builder4<A, B, C, D>

pub fn a(self, this: A) -> Union4<A, B, C, D>

Construct a union at this variant.

pub fn b(self, this: B) -> Union4<A, B, C, D>

Construct a union at this variant.

pub fn c(self, this: C) -> Union4<A, B, C, D>

Construct a union at this variant.

pub fn d(self, this: D) -> Union4<A, B, C, D>

Construct a union at this variant.

Trait Implementations

impl<A, B, C, D> Clone for Builder4<A, B, C, D>

fn clone(&self) -> Self

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<A, B, C, D> Debug for Builder4<A, B, C, D>

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

Formats the value using the given formatter.

impl<A, B, C, D> Copy for Builder4<A, B, C, D>