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InMemoryStore

Struct InMemoryStore 

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pub struct InMemoryStore { /* private fields */ }
Expand description

In-memory store using a map and a monotonic id counter.

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impl InMemoryStore

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pub fn new() -> Self

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pub fn from_todos(todos: Vec<Todo>) -> Self

Builds a store from existing todos (e.g. after loading from file). Next id will be max(existing ids) + 1.

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impl Default for InMemoryStore

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fn default() -> InMemoryStore

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

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fn next_id(&mut self) -> TodoId

Returns the next available id and advances the counter.
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fn insert(&mut self, todo: Todo)

Inserts a todo; the id must have been obtained from next_id.
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fn get(&self, id: TodoId) -> Option<Todo>

Returns the todo with the given id, if any.
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fn list(&self) -> Vec<Todo>

Returns all todos in creation order (by created_at).
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fn update(&mut self, todo: Todo)

Updates an existing todo (e.g. after marking completed).
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fn remove(&mut self, id: TodoId)

Removes the todo with the given id.

Auto Trait Implementations§

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> 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, 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.