Struct RollbackableVec

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

ロールバック可能Vec

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impl<T> RollbackableVec<T>
where T: Clone,

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pub fn new() -> Self

RollbackableVecを生成

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pub fn push(&mut self, value: T)

末尾にvalueを追加

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pub fn pop(&mut self) -> Option<T>

末尾の要素を削除して返す

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pub fn assign(&mut self, index: usize, value: T)

index番目の要素をvalueに変更する

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pub fn rollback(&mut self) -> bool

直前のpush / pop / assign操作を取り消す

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pub fn len(&self) -> usize

現在の要素数を返す

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pub fn is_empty(&self) -> bool

要素が存在しないかを判定する

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pub fn as_slice(&self) -> &[T]

スライスを返す

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

先頭の要素を返す

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

末尾の要素を返す

Trait Implementations§

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impl<T: Clone> Clone for RollbackableVec<T>

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fn clone(&self) -> RollbackableVec<T>

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 RollbackableVec<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 RollbackableVec<T>

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fn default() -> RollbackableVec<T>

Returns the “default value” for a type. Read more
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impl<T: Clone> From<&RollbackableVec<T>> for Vec<T>

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fn from(from: &RollbackableVec<T>) -> Self

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

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fn from(from: Vec<T>) -> Self

Converts to this type from the input type.
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impl<T> Index<usize> for RollbackableVec<T>

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type Output = T

The returned type after indexing.
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fn index(&self, i: usize) -> &Self::Output

Performs the indexing (container[index]) operation. Read more

Auto Trait Implementations§

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impl<T> Freeze for RollbackableVec<T>

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impl<T> RefUnwindSafe for RollbackableVec<T>
where T: RefUnwindSafe,

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impl<T> Send for RollbackableVec<T>
where T: Send,

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impl<T> Sync for RollbackableVec<T>
where T: Sync,

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

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impl<T> UnwindSafe for RollbackableVec<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<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.