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use std::collections::HashMap;
use std::sync::Mutex;
pub struct Robo {
speed: Mutex<usize>,
}
//type InsKey = usize;
type InsKey = &'static str;
type InsMap<'a> = HashMap<InsKey, Box<dyn FnMut() + 'a>>;
// const KEY1: InsKey = 0;
// const KEY2: InsKey = 0;
const KEY1: InsKey = "mv1";
const KEY2: InsKey = "mv2";
pub struct Co<'a> {
ins: InsMap<'a>,
}
impl<'a> Co<'a> {
pub fn new(ins: InsMap<'a>) -> Self {
Self { ins }
}
pub fn run(&mut self) {
(self.ins.get_mut(&KEY1).expect("should have move word"))();
(self.ins.get_mut(&KEY2).expect("should have move2 word"))();
}
}
impl<'a> Robo {
pub fn new() -> Self {
Self {
speed: Mutex::new(0),
}
}
pub fn make_ins(&'a mut self) -> InsMap<'a> {
let mut map = HashMap::new();
let s = &mut self.speed;
let op_speed = || {
let mut x =
s.lock().expect("couldn't get lock on speed");
*x = 1;
};
let op_speed2 = || {
let mut x =
s.lock().expect("couldn't get lock on speed");
*x = 2;
};
map.insert(KEY1, Box::new(op_speed) as Box<dyn FnMut()>);
map.insert(KEY2, Box::new(op_speed2) as Box<dyn FnMut()>);
map
}
}
#[cfg(test)]
mod tests {
use super::*;
#[test]
fn can_run() {
let mut r = Robo::new();
let ins: InsMap = r.make_ins();
let mut c: Co = Co::new(ins);
c.run();
}
}
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