Update to Rust 2018. Fixes #271

CODE_STYLE.md

@@ -16,8 +16,8 @@ to most specific, but it's not very important.
 ```rust
 use core::cell::RefCell;
 
-use {Error, Result};
-use phy::{self, DeviceCapabilities, Device};
+use crate::{Error, Result};
+use crate::phy::{self, DeviceCapabilities, Device};
 ```
 
 ## Wrapping function calls

Cargo.toml

@@ -1,6 +1,7 @@
 [package]
 name = "smoltcp"
 version = "0.6.0"
+edition = "2018"
 authors = ["whitequark <whitequark@whitequark.org>"]
 description = "A TCP/IP stack designed for bare-metal, real-time systems without a heap."
 documentation = "https://docs.rs/smoltcp/"

benches/bench.rs

@@ -1,8 +1,5 @@
 #![feature(test)]
 
-extern crate test;
-extern crate smoltcp;
-
 mod wire {
     use test;
     #[cfg(feature = "proto-ipv6")]

examples/benchmark.rs

@@ -1,11 +1,3 @@
-#[cfg(feature = "log")]
-#[macro_use]
-extern crate log;
-#[cfg(feature = "log")]
-extern crate env_logger;
-extern crate getopts;
-extern crate smoltcp;
-
 mod utils;
 
 use std::cmp;
@@ -15,6 +7,8 @@ use std::thread;
 use std::io::{Read, Write};
 use std::net::TcpStream;
 use std::os::unix::io::AsRawFd;
+use log::debug;
+
 use smoltcp::phy::wait as phy_wait;
 use smoltcp::wire::{EthernetAddress, IpAddress, IpCidr};
 use smoltcp::iface::{NeighborCache, EthernetInterfaceBuilder};

examples/client.rs

@@ -1,14 +1,10 @@
-#[macro_use]
-extern crate log;
-extern crate env_logger;
-extern crate getopts;
-extern crate smoltcp;
-
 mod utils;
 
 use std::str::{self, FromStr};
 use std::collections::BTreeMap;
 use std::os::unix::io::AsRawFd;
+use log::debug;
+
 use smoltcp::phy::wait as phy_wait;
 use smoltcp::wire::{EthernetAddress, Ipv4Address, IpAddress, IpCidr};
 use smoltcp::iface::{NeighborCache, EthernetInterfaceBuilder, Routes};

examples/dhcp_client.rs

@@ -1,9 +1,3 @@
-#[macro_use]
-extern crate log;
-extern crate env_logger;
-extern crate getopts;
-extern crate smoltcp;
-
 mod utils;
 
 use std::collections::BTreeMap;

examples/httpclient.rs

@@ -1,17 +1,11 @@
-#[macro_use]
-extern crate log;
-extern crate env_logger;
-extern crate getopts;
-extern crate rand;
-extern crate url;
-extern crate smoltcp;
-
 mod utils;
 
 use std::str::{self, FromStr};
 use std::collections::BTreeMap;
 use std::os::unix::io::AsRawFd;
 use url::Url;
+use log::debug;
+
 use smoltcp::phy::wait as phy_wait;
 use smoltcp::wire::{EthernetAddress, Ipv4Address, Ipv6Address, IpAddress, IpCidr};
 use smoltcp::iface::{NeighborCache, EthernetInterfaceBuilder, Routes};

examples/loopback.rs

@@ -1,21 +1,13 @@
 #![cfg_attr(not(feature = "std"), no_std)]
 #![allow(unused_mut)]
 
-#[cfg(feature = "std")]
-use std as core;
-#[macro_use]
-extern crate log;
-extern crate smoltcp;
-#[cfg(feature = "std")]
-extern crate env_logger;
-#[cfg(feature = "std")]
-extern crate getopts;
-
 #[cfg(feature = "std")]
 #[allow(dead_code)]
 mod utils;
 
 use core::str;
+use log::{info, debug, error};
+
 use smoltcp::phy::Loopback;
 use smoltcp::wire::{EthernetAddress, IpAddress, IpCidr};
 use smoltcp::iface::{NeighborCache, EthernetInterfaceBuilder};

examples/multicast.rs

@@ -1,14 +1,9 @@
-#[macro_use]
-extern crate log;
-extern crate env_logger;
-extern crate getopts;
-extern crate smoltcp;
-extern crate byteorder;
-
 mod utils;
 
 use std::collections::BTreeMap;
 use std::os::unix::io::AsRawFd;
+use log::debug;
+
 use smoltcp::phy::wait as phy_wait;
 use smoltcp::wire::{EthernetAddress, IpVersion, IpProtocol, IpAddress, IpCidr, Ipv4Address,
                     Ipv4Packet, IgmpPacket, IgmpRepr};

examples/ping.rs

@@ -1,16 +1,13 @@
-#[macro_use]
-extern crate log;
-extern crate env_logger;
-extern crate getopts;
-extern crate smoltcp;
-extern crate byteorder;
-
 mod utils;
 
 use std::str::FromStr;
 use std::collections::BTreeMap;
 use std::cmp;
 use std::os::unix::io::AsRawFd;
+use std::collections::HashMap;
+use log::debug;
+use byteorder::{ByteOrder, NetworkEndian};
+
 use smoltcp::time::{Duration, Instant};
 use smoltcp::phy::Device;
 use smoltcp::phy::wait as phy_wait;
@@ -19,8 +16,6 @@ use smoltcp::wire::{EthernetAddress, IpAddress, IpCidr,
                     Ipv4Address, Icmpv4Repr, Icmpv4Packet};
 use smoltcp::iface::{NeighborCache, EthernetInterfaceBuilder, Routes};
 use smoltcp::socket::{SocketSet, IcmpSocket, IcmpSocketBuffer, IcmpPacketMetadata, IcmpEndpoint};
-use std::collections::HashMap;
-use byteorder::{ByteOrder, NetworkEndian};
 
 macro_rules! send_icmp_ping {
     ( $repr_type:ident, $packet_type:ident, $ident:expr, $seq_no:expr,

examples/server.rs

@@ -1,15 +1,11 @@
-#[macro_use]
-extern crate log;
-extern crate env_logger;
-extern crate getopts;
-extern crate smoltcp;
-
 mod utils;
 
 use std::str;
 use std::collections::BTreeMap;
 use std::fmt::Write;
 use std::os::unix::io::AsRawFd;
+use log::debug;
+
 use smoltcp::phy::wait as phy_wait;
 use smoltcp::wire::{EthernetAddress, IpAddress, IpCidr};
 use smoltcp::iface::{NeighborCache, EthernetInterfaceBuilder};

examples/tcpdump.rs

@@ -1,5 +1,3 @@
-extern crate smoltcp;
-
 use std::env;
 use std::os::unix::io::AsRawFd;
 use smoltcp::phy::wait as phy_wait;

examples/utils.rs

@@ -9,7 +9,7 @@ use std::time::{SystemTime, UNIX_EPOCH};
 use std::env;
 use std::process;
 #[cfg(feature = "log")]
-use log::{Level, LevelFilter};
+use log::{Level, LevelFilter, trace};
 #[cfg(feature = "log")]
 use env_logger::Builder;
 use getopts::{Options, Matches};

src/dhcp/clientv4.rs

@@ -1,13 +1,13 @@
-use {Result, Error};
-use wire::{IpVersion, IpProtocol, IpEndpoint, IpAddress,
+use crate::{Result, Error};
+use crate::wire::{IpVersion, IpProtocol, IpEndpoint, IpAddress,
            Ipv4Cidr, Ipv4Address, Ipv4Packet, Ipv4Repr,
            UdpPacket, UdpRepr,
            DhcpPacket, DhcpRepr, DhcpMessageType};
-use wire::dhcpv4::field as dhcpv4_field;
-use socket::{SocketSet, SocketHandle, RawSocket, RawSocketBuffer};
-use phy::{Device, ChecksumCapabilities};
-use iface::EthernetInterface as Interface;
-use time::{Instant, Duration};
+use crate::wire::dhcpv4::field as dhcpv4_field;
+use crate::socket::{SocketSet, SocketHandle, RawSocket, RawSocketBuffer};
+use crate::phy::{Device, ChecksumCapabilities};
+use crate::iface::EthernetInterface as Interface;
+use crate::time::{Instant, Duration};
 use super::{UDP_SERVER_PORT, UDP_CLIENT_PORT};
 
 const DISCOVER_TIMEOUT: u64 = 10;