gistfile1.rs

use std::os;
use std::rt::io::net::{ip,udp};
 
// Usage Notes
static USAGE: &'static str = "Usage: ./sws <port> <folder>";
 
// The options available to the program.
struct Options {
  port:      ip::SocketAddr,
  directory: ~str
}
 
// Initialization Code. 
fn main() {
  // Get the program options.
  let args : ~[~str] = os::args();
  if (args.len() != 3) { // Error if we don't have enough.
    fail!(USAGE); 
  }
  println!("{:?}",args); 
  let options = Options {
    port: match args[1] {
      Some(x) => FromStr::from_str(x),
      None => fail!("Couldn't parse port")
    },
    directory: args[2]
  };

  // Set up a socket.
  
}

➜  Desktop  rust run sws.rs
sws.rs:23:6: 23:13 error: mismatched types: expected `~str` but found an enum or structure pattern
sws.rs:23       Some(x) => FromStr::from_str(x),
                ^~~~~~~
sws.rs:24:6: 24:10 error: mismatched types: expected `~str` but found an enum or structure pattern
sws.rs:24       None => fail!("Couldn't parse port")
                ^~~~
sws.rs:22:10: 25:5 error: mismatched types: expected `std::rt::io::net::ip::SocketAddr` but found `std::option::Option<<V91>>` (expected struct std::rt::io::net::ip::SocketAddr but found enum std::option::Option)
sws.rs:22     port: match args[1] {
sws.rs:23       Some(x) => FromStr::from_str(x),
sws.rs:24       None => fail!("Couldn't parse port")
sws.rs:25     },
sws.rs:23:17: 23:34 error: cannot determine a type for this bounded type parameter: unconstrained type
sws.rs:23       Some(x) => FromStr::from_str(x),