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use std::{io::Write, sync::atomic::Ordering};
use matrix::{value::Value, vm::Interupt};
use rustyline::Config;
use crate::State;
pub struct Repl<'a> {
state: State<'a>
}
impl<'a> Repl<'a> {
pub fn new(state: State<'a>) -> Self {
Self { state }
}
pub fn run(&mut self) {
let interupt = self.state.vm.interupt();
ctrlc::set_handler(move || {
interupt.store(Interupt::KeyboardInterupt as usize, Ordering::SeqCst);
}).unwrap();
let config = Config::builder()
.check_cursor_position(true)
.build();
let mut rl = rustyline::DefaultEditor::with_config(config).unwrap();
loop {
let Ok(line) = rl.readline(">> ") else {
break;
};
match self.state.execute(line) {
Err(err) => crate::error(err),
Ok(val) => {
if val != Value::Nil {
println!("{val}");
}
}
}
let _ = std::io::stdout().flush();
}
}
}
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