Struct ArcRwLockKeyPathChain 

pub struct ArcRwLockKeyPathChain<Root, RwLockValue, InnerValue, SubValue, F, G>
where
    F: for<'r> Fn(&'r Root) -> &'r RwLockValue,
    G: for<'r> Fn(&'r InnerValue) -> &'r SubValue,
{ /* private fields */ }

A composed keypath chain through Arc<RwLock> - functional style Build the chain first, then apply container at get() time

Example

// Functional style: compose first, then apply container at get()
ContainerTest::rwlock_data_r()
    .chain_arc_rwlock_at_kp(SomeStruct::data_r())
    .get(&container, |value| println!("Value: {}", value));

Implementations

impl<Root, RwLockValue, InnerValue, SubValue, F, G> ArcRwLockKeyPathChain<Root, RwLockValue, InnerValue, SubValue, F, G>

where F: for<'r> Fn(&'r Root) -> &'r RwLockValue, G: for<'r> Fn(&'r InnerValue) -> &'r SubValue, RwLockValue: Borrow<Arc<RwLock<InnerValue>>>,

pub fn get<Callback>(self, container: &Root, callback: Callback) -> Option<()>

where Callback: FnOnce(&SubValue),

Apply the composed keypath chain to a container, executing callback with the value (read lock) Consumes self - functional style (compose once, apply once)

pub fn then<NextValue, H>( self, next: KeyPath<SubValue, NextValue, H>, ) -> ArcRwLockKeyPathChain<Root, RwLockValue, InnerValue, NextValue, F, impl for<'r> Fn(&'r InnerValue) + 'static>

where H: for<'r> Fn(&'r SubValue) -> &'r NextValue + 'static, G: 'static, InnerValue: 'static, SubValue: 'static, NextValue: 'static,

Chain with another readable keypath through another level This allows composing deeper keypaths through the same Arc<RwLock> structure

pub fn chain_optional<NextValue, H>( self, next: OptionalKeyPath<SubValue, NextValue, H>, ) -> ArcRwLockOptionalKeyPathChain<Root, RwLockValue, InnerValue, NextValue, F, impl for<'r> Fn(&'r InnerValue) + 'static>

where H: for<'r> Fn(&'r SubValue) -> Option<&'r NextValue> + 'static, G: 'static, InnerValue: 'static, SubValue: 'static, NextValue: 'static,

Chain with an optional readable keypath through another level