unit basic;
import core;

/* outer comment /* nested comment */ still active */
const LIMIT: u16 = 1_000;
pub struct Point {
    pub x: i32,
    y: i32,
    pub fn new(x: i32, y: i32) -> Point { return Point{ x: x, y: y }; }
    pub fn shift(self: &mut Self, dx: i32) { self.x += dx; }
}
pub enum Shape {
    Empty,
    Circle(i32),
    Rect{ w: i32, h: i32 },
}
pub error IoError { NotFound = 1, Denied = 2, }

pub fn main() -> !void {
    let p: Point = Point{ x: 1, y: 2 };
    if p.x > 0 and true { p.shift(1); } else { p.x = 0; }
    while p.x < 10 { p.x += 1; if p.x == 5 { continue; } }
    for i, x in p.x..10 { let _n: usize = i; let _q = x; }
    return;
}