lyquor_state

Struct ShadowState

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

State with visible changes recorded on top of the parent state without actually modifying the parent state.

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impl ShadowState

pub fn new(parent: Arc<dyn StateR>) -> Self

pub fn take(&mut self) -> HashMap<Key, Option<Value>>

Takeout the changes recorded by ShadowState so the state becomes idential to its parent.

Trait Implementations§

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impl State for ShadowState

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fn set(&mut self, key: Key, val: Option<Value>)

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impl StateR for ShadowState

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fn debug_iter<'a>(&'a self) -> Box<dyn Iterator<Item = (Key, Value)> + 'a>

This method is for debugging. If the implementation does not provide such functionality, it defaults to an empty iterator.
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fn get(&self, key: Key) -> Option<Value>

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