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use bevy::prelude::*; | |
fn main() { | |
divan::main(); | |
} | |
#[divan::bench] | |
fn reflect() { | |
let mut input: Box<dyn MovementField> = Box::new(PlayerInput::default()); | |
for n in 1..=1000 { | |
input.get_movement_mut().x += 10.; | |
assert_eq!(input.get_movement().x, n as f32 * 10.); | |
} | |
} | |
#[derive(Reflect, Default, Debug)] | |
struct PlayerInput { | |
movement: Vec2, | |
} | |
trait MovementField { | |
fn get_movement(&self) -> &Vec2; | |
fn get_movement_mut(&mut self) -> &mut Vec2; | |
} | |
impl<T> MovementField for T where T: GetField { | |
fn get_movement(&self) -> &Vec2 { | |
self.get_field("movement").unwrap() | |
} | |
fn get_movement_mut(&mut self) -> &mut Vec2 { | |
self.get_field_mut("movement").unwrap() | |
} | |
} |
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use bevy::prelude::*; | |
fn main() { | |
divan::main(); | |
} | |
#[divan::bench] | |
fn access() { | |
let mut input = PlayerInput::default(); | |
for n in 1..=1000 { | |
input.get_movement_mut().x += 10.; | |
assert_eq!(input.get_movement().x, n as f32 * 10.); | |
} | |
} | |
#[derive(Reflect, Default, Debug)] | |
struct PlayerInput { | |
movement: Vec2, | |
} | |
trait MovementField { | |
fn get_movement(&self) -> &Vec2; | |
fn get_movement_mut(&mut self) -> &mut Vec2; | |
} | |
impl MovementField for PlayerInput { | |
fn get_movement(&self) -> &Vec2 { | |
&self.movement | |
} | |
fn get_movement_mut(&mut self) -> &mut Vec2 { | |
&mut self.movement | |
} | |
} |
Author
thebluefish
commented
Feb 16, 2024
Updated to use trait object in reflect benchmark
access fastest │ slowest │ median │ mean │ samples │ iters
╰─ access 949.7 ns │ 1.862 µs │ 949.7 ns │ 962.3 ns │ 100 │ 1600
reflect fastest │ slowest │ median │ mean │ samples │ iters
╰─ reflect 943.5 ns │ 1.206 µs │ 956 ns │ 963 ns │ 100 │ 1600
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