Struct zng :: state_map :: StateMapMut Copy item path

impl<'a, U> StateMapMut<'a, U>

pub fn contains<T>(&self, id: impl Into<StateId<T>>) -> bool
where T: StateValue,

Gets if the ID is set in this map.

pub fn get<T>(&self, id: impl Into<StateId<T>>) -> Option<&T>
where T: StateValue,

Reference the ID’s value set in this map.

pub fn into_get<T>(self, id: impl Into<StateId<T>>) -> Option<&'a T>
where T: StateValue,

Consume the mutable reference to the map and returns a reference to the value in the parent lifetime 'a.

pub fn copy<T>(&self, id: impl Into<StateId<T>>) -> Option<T>
where T: StateValue + Copy,

Copy the ID’s value set in this map.

pub fn get_clone<T>(&self, id: impl Into<StateId<T>>) -> Option<T>
where T: StateValue + Clone,

Clone the ID’s value set in this map.

pub fn req<T>(&self, id: impl Into<StateId<T>>) -> &T
where T: StateValue,

Reference the ID’s value set in this map or panics if the ID is not set.

pub fn into_req<T>(self, id: impl Into<StateId<T>>) -> &'a T
where T: StateValue,

Consume the mutable reference to the map and returns a reference to the value in the parent lifetime 'a.

pub fn flagged(&self, id: impl Into<StateId<()>>) -> bool

Gets if a state ID without value is set.

pub fn is_empty(&self) -> bool

If no state is set.

pub fn set<T>( &mut self, id: impl Into<StateId<T>>, value: impl Into<T>, ) -> Option<T>
where T: StateValue,

Set the ID’s value.

pub fn get_mut<T>(&mut self, id: impl Into<StateId<T>>) -> Option<&mut T>
where T: StateValue,

Mutable borrow the ID’s value set in this map.

pub fn into_get_mut<T>(self, id: impl Into<StateId<T>>) -> Option<&'a mut T>
where T: StateValue,

Consume the mutable reference to the map and mutable borrow the ID’s value in the parent lifetime 'a.

pub fn req_mut<T>(&mut self, id: impl Into<StateId<T>>) -> &mut T
where T: StateValue,

Mutable borrow the key value set in this map or panics if the ID is not set.

pub fn into_req_mut<T>(self, id: impl Into<StateId<T>>) -> &'a mut T
where T: StateValue,

Consume the mutable reference to the map and mutable borrow the ID value in the parent lifetime 'a.

pub fn entry<T>(&mut self, id: impl Into<StateId<T>>) -> StateMapEntry<'_, T>
where T: StateValue,

Gets the given ID’s corresponding entry in the map for in-place manipulation.

pub fn into_entry<T>(self, id: impl Into<StateId<T>>) -> StateMapEntry<'a, T>
where T: StateValue,

Consume the mutable reference to the map and returns a given ID’s corresponding entry in the map with the parent lifetime 'a.

pub fn flag(&mut self, id: impl Into<StateId<()>>) -> bool

Sets a state ID without value.

Returns if the state ID was already flagged.

pub fn reborrow(&mut self) -> StateMapMut<'_, U>

Reborrow the mutable reference.

pub fn as_ref(&self) -> StateMapRef<'_, U>

Reborrow the reference as read-only.

Trait Implementations§

impl<'a, U> Debug for StateMapMut<'a, U>

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

Formats the value using the given formatter. Read more

Auto Trait Implementations§

impl<'a, U> !UnwindSafe for StateMapMut<'a, U>

Blanket Implementations§

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where T: 'static + ?Sized,

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Gets the TypeId of self. Read more

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where T: ?Sized,

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Immutably borrows from an owned value. Read more

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Mutably borrows from an owned value. Read more

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