Struct ComposedBinding 

pub struct ComposedBinding<Root: 'static, Mid: 'static, Focus: 'static, ParentKP, SubKP> { /* private fields */ }

Two-segment keypath projection from root state.

Implementations

impl<Root, Mid, Focus, ParentKP, SubKP> ComposedBinding<Root, Mid, Focus, ParentKP, SubKP>

where Root: 'static, Mid: 'static, Focus: 'static, ParentKP: RefKpTrait<Root, Mid>, SubKP: RefKpTrait<Mid, Focus>,

pub fn with<R>(&self, f: impl FnOnce(&Focus) -> R) -> Option<R>

Borrow through parent then child keypath; None if either segment misses.

pub fn with_mut<R>(&self, f: impl FnOnce(&mut Focus) -> R) -> Option<R>

Mutably borrow through parent then child keypath; None if either segment misses.