Struct Global

pub struct Global<T> { /* private fields */ }

Lazily evaluated static allocation.

Implementations

impl<T> Global<T>

pub const fn new(f: fn() -> T) -> Self

Constructs a new global. Rather than a value, this function takes a closure that produces a value.

static MY_TABLE: Global<Vec<&str>> = Global::new(|| vec!["a", "b", "c"]);

pub fn init(&self)

Initializes the contents of a global. Does nothing if already initialized.

pub fn get(&self) -> Option<&T>

Retrieves a reference to the value inside the global without allocating. This function will return None if the global has not been allocated.

pub unsafe fn get_unchecked(&self) -> &T

Retrieves a reference to the value inside the global without allocating. Calling this function on an unallocated global is undefined behavior.

impl<T: Default> Global<T>

pub const fn default() -> Self

Constructs a new global, using the Default implementation for T as the initializer.

Trait Implementations

impl<T: Debug> Debug for Global<T>

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

Formats the value using the given formatter.

impl<T> Deref for Global<T>

type Target = T

The resulting type after dereferencing.

fn deref(&self) -> &Self::Target

Dereferences the value.

impl<T: Display> Display for Global<T>

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

Formats the value using the given formatter.