Struct LateLayoutInitToken 

#[non_exhaustive]
pub struct LateLayoutInitToken;

A marker type indicating that the layouts for all late_struct!s throughout the compiled artifact have been determined at runtime.

This initialization process happens automatically upon the first instantiation of a LateInstance. Indeed, you can use the init_token method of a LateInstance to obtain an instance of this struct for free.

Implementations

impl LateLayoutInitToken

pub fn new() -> Self

Resolves all late-initialized structures in the compiled artifact and returns a token attesting to this fact. The late initialization process only happens once during the program’s lifetime.

The late-initialization routine does not makes uncontrolled calls to user-controlled functions.

pub const unsafe fn new_unchecked() -> Self

Unsafely asserts that the layout for all late-initialized structures in the compiled artifact have already been resolved.

Unless you have specific performance reasons to do so, you should probably be using LateLayoutInitToken::new.

Safety

Although this method cannot, by itself, cause undefined behavior, passing this object to a method which expects the layout of late-initialized structure to already be resolved when the layouts are not yet resolved could easily cause undefined behavior.

Trait Implementations

impl Clone for LateLayoutInitToken

fn clone(&self) -> LateLayoutInitToken

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for LateLayoutInitToken

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

Formats the value using the given formatter.

impl Default for LateLayoutInitToken

fn default() -> Self

Returns the “default value” for a type.

impl Copy for LateLayoutInitToken