Struct OptionalArcMutexOptionalKeyPathChain 

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

A composed optional keypath chain from OptionalKeyPath through Arc<Mutex> - functional style

Implementations

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

where F: for<'r> Fn(&'r Root) -> Option<&'r MutexValue>, G: for<'r> Fn(&'r InnerValue) -> Option<&'r SubValue>, MutexValue: Borrow<Arc<Mutex<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 Consumes self - functional style (compose once, apply once)

pub fn then<NextValue, H>( self, next: KeyPath<SubValue, NextValue, H>, ) -> OptionalArcMutexOptionalKeyPathChain<Root, MutexValue, 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

pub fn chain_optional<NextValue, H>( self, next: OptionalKeyPath<SubValue, NextValue, H>, ) -> OptionalArcMutexOptionalKeyPathChain<Root, MutexValue, 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