Struct CallbackBuilderWithArg 

pub struct CallbackBuilderWithArg<'a, Arg = (), T = (), Out = (), F: Fn(Arg, T) -> Out + 'static = fn(Arg, T) -> Out, Rule = AllowNull, State = Unconstructed> { /* private fields */ }

A CallbackBuilder which includes an argument passed from the system to the callback.

Implementations

impl<'a> CallbackBuilderWithArg<'a, (), (), (), fn((), ()), AllowNull, Unconstructed>

pub fn none() -> CallbackBuilderWithArg<'a, (), (), (), fn((), ()), AllowNull, Constructed>

A null callback, which is used to specify a callback should not be set, or should be removed.

impl<'a, Arg, T, Out, F: Fn(Arg, T) -> Out + 'static, Rule> CallbackBuilderWithArg<'a, Arg, T, Out, F, Rule, Unconstructed>

pub fn with( callbacks: &'a mut Callbacks<T>, ) -> CallbackBuilderWithArg<'a, Arg, T, Out, F, Rule, WithCallacks>

Attach a Callbacks object to this builder, that will hold the closure.

impl<'a, Arg, T, Out, F: Fn(Arg, T) -> Out + 'static, Rule> CallbackBuilderWithArg<'a, Arg, T, Out, F, Rule, WithCallacks>

pub fn call( self, cb: F, ) -> CallbackBuilderWithArg<'a, Arg, T, Out, F, Rule, Constructed>

Attach a closure to this builder, which will be held in the Callbacks object and called via that same Callbacks object.