Trait bevy::reflect::prelude::GetTupleStructField

pub trait GetTupleStructField {
    // Required methods
    fn get_field<T>(&self, index: usize) -> Option<&T>
       where T: Reflect;
    fn get_field_mut<T>(&mut self, index: usize) -> Option<&mut T>
       where T: Reflect;
}
Expand description

A convenience trait which combines fetching and downcasting of tuple struct fields.

Example

use bevy_reflect::{GetTupleStructField, Reflect};

#[derive(Reflect)]
struct Foo(String);

let mut foo = Foo("Hello, world!".to_string());

foo.get_field_mut::<String>(0).unwrap().truncate(5);
assert_eq!(foo.get_field::<String>(0), Some(&"Hello".to_string()));

Required Methods§

fn get_field<T>(&self, index: usize) -> Option<&T>where T: Reflect,

Returns a reference to the value of the field with index index, downcast to T.

fn get_field_mut<T>(&mut self, index: usize) -> Option<&mut T>where T: Reflect,

Returns a mutable reference to the value of the field with index index, downcast to T.

Implementors§