Struct ArcMutexWritableKeyPathChain 

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

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

Implementations

impl<Root, MutexValue, InnerValue, SubValue, F, G> ArcMutexWritableKeyPathChain<Root, MutexValue, InnerValue, SubValue, F, G>

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

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

where Callback: FnOnce(&mut SubValue) -> R,

Apply the composed keypath chain to a container with mutable access Consumes self - functional style (compose once, apply once)