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History

indigo_core::history

Struct History 

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pub struct History<I, T = Vec<I>>
where
    T: FromItem<I> + Extend<I> + Clone,
{ /* private fields */ }

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impl<I, T> History<I, T>
where T: FromItem<I> + Extend<I> + Clone,

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pub fn new() -> Self

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pub fn push(&mut self, item: I)

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pub fn commit(&mut self)

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

Returns undone change.

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

Returns redone change.

Trait Implementations§

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impl<I: Clone, T> Clone for History<I, T>
where T: FromItem<I> + Extend<I> + Clone + Clone,

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fn clone(&self) -> History<I, T>

Returns a duplicate of the value. Read more
1.0.0 (const: unstable) · Source§

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

Performs copy-assignment from source. Read more
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impl<I: Debug, T> Debug for History<I, T>
where T: FromItem<I> + Extend<I> + Clone + Debug,

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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<I, T> Default for History<I, T>
where T: FromItem<I> + Extend<I> + Clone,

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fn default() -> Self

Returns the “default value” for a type. Read more

Auto Trait Implementations§

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impl<I, T> Freeze for History<I, T>
where Vec<T>: Freeze, PhantomData<fn(I)>: Freeze,

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impl<I, T> RefUnwindSafe for History<I, T>
where Vec<T>: RefUnwindSafe, PhantomData<fn(I)>: RefUnwindSafe,

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impl<I, T> Send for History<I, T>
where Vec<T>: Send, PhantomData<fn(I)>: Send,

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impl<I, T> Sync for History<I, T>
where Vec<T>: Sync, PhantomData<fn(I)>: Sync,

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impl<I, T> Unpin for History<I, T>
where Vec<T>: Unpin, PhantomData<fn(I)>: Unpin,

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impl<I, T> UnsafeUnpin for History<I, T>
where Vec<T>: UnsafeUnpin, PhantomData<fn(I)>: UnsafeUnpin,

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impl<I, T> UnwindSafe for History<I, T>
where Vec<T>: UnwindSafe, PhantomData<fn(I)>: 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<I> FromItem<I> for I

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fn from_item(item: I) -> I

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impl<T> Instrument for T

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fn instrument(self, span: Span) -> Instrumented<Self> ⓘ

Instruments this type with the provided [Span], returning an Instrumented wrapper. Read more
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fn in_current_span(self) -> Instrumented<Self> ⓘ

Instruments this type with the current Span, returning an Instrumented wrapper. Read more
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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 = !

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.
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impl<T> WithSubscriber for T

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fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self> ⓘ
where S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a [WithDispatch] wrapper. Read more
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fn with_current_subscriber(self) -> WithDispatch<Self> ⓘ

Attaches the current default Subscriber to this type, returning a [WithDispatch] wrapper. Read more