Trait HostBoxes 

pub trait HostBoxes {
    // Required method
    fn host_box(&self, request: &HostBoxRequest) -> Option<HostBox>;

    // Provided method
    fn revision(&self, _token: u32) -> Option<u64> { ... }
}

Answers \hostbox{token} with a box the host lays out, such as a nested editor field.

Required Methods

fn host_box(&self, request: &HostBoxRequest) -> Option<HostBox>

The box for one placement of request.token, None renders nothing and emits a warning.

Provided Methods

fn revision(&self, _token: u32) -> Option<u64>

A value that changes whenever the boxes for token change, None makes fragments using it uncachable.

Dyn Compatibility

This trait is dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementations on Foreign Types

impl<T> HostBoxes for &T

where T: HostBoxes + ?Sized,

fn host_box(&self, request: &HostBoxRequest) -> Option<HostBox>

fn revision(&self, token: u32) -> Option<u64>

Implementors

impl HostBoxes for NoHostBoxes