Struct LazyExclusive

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pub struct LazyExclusive<T> { /* private fields */ }
Expand description

A container type like LazyLock. Allows mutable access, but only one reference at a time.

use lazy_exclusive::LazyExclusive;

static LAZY: LazyExclusive<i32> = LazyExclusive::new(123);
let lock = LAZY.get().unwrap();
assert_eq!(*lock, 123);
assert!(LAZY.is_locked());

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impl<T> LazyExclusive<T>

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

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pub fn get(&self) -> Option<Mut<'_, T>>

Get a handle to the inner data. Returns None if a handle already exists

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pub fn swap(&self, new_value: T)

Set the inner value to [new_value]. Panics if the data is already locked

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pub fn get_state(&self) -> State

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pub fn wait(&self) -> Mut<'_, T>

Wait for the data to unlock and return a new handle

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pub fn into_inner(self) -> T

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pub fn is_unlocked(&self) -> bool

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pub fn is_locked(&self) -> bool

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pub fn is_poisoned(&self) -> bool

Trait Implementations§

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impl<T: Clone> Clone for LazyExclusive<T>

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fn clone(&self) -> Self

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl<T: Debug> Debug for LazyExclusive<T>

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

Formats the value using the given formatter. Read more
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impl<T: Default> Default for LazyExclusive<T>

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fn default() -> Self

Returns the “default value” for a type. Read more
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impl<T> From<T> for LazyExclusive<T>

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fn from(value: T) -> Self

Converts to this type from the input type.
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impl<T> Send for LazyExclusive<T>

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impl<T> Sync for LazyExclusive<T>

Auto Trait Implementations§

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impl<T> !Freeze for LazyExclusive<T>

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impl<T> !RefUnwindSafe for LazyExclusive<T>

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impl<T> Unpin for LazyExclusive<T>
where T: Unpin,

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impl<T> UnwindSafe for LazyExclusive<T>
where T: UnwindSafe,

Blanket Implementations§

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. Read more
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impl<T> From<!> for T

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fn from(t: !) -> T

Converts to this type from the input type.
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.