Rust 2018 edition changes

Cargo.toml

@@ -9,6 +9,8 @@ description = "Linux keyboard mapper"
 repository  = "https://code.moparisthebest.com/moparisthebest/rusty-keys"
 keywords    = ["linux", "input", "keyboard", "keymapper"]
 
+edition = "2018"
+
 include = [
     "src/**",
     "Cargo.toml",

src/device/builder.rs

@@ -5,7 +5,7 @@ use libc::c_int;
 use nix::{self, fcntl, unistd, errno::Errno};
 use nix::sys::stat;
 use ffi::*;
-use {Result as Res, Device};
+use crate::{Result as Res, Device};
 use std::collections::hash_map::Values;
 
 #[cfg(feature = "udev")]
@@ -22,28 +22,12 @@ impl Builder {
 	/// Create a builder from the specified path.
 	pub fn open<P: AsRef<Path>>(path: P) -> Res<Self> {
 		Ok(Builder {
-			fd:  try!(fcntl::open(path.as_ref(), fcntl::OFlag::O_WRONLY | fcntl::OFlag::O_NONBLOCK, stat::Mode::empty())),
+			fd:  fcntl::open(path.as_ref(), fcntl::OFlag::O_WRONLY | fcntl::OFlag::O_NONBLOCK, stat::Mode::empty())?,
 			def: unsafe { mem::zeroed() },
 			abs: None,
 		})
 	}
 
-	#[cfg(feature = "udev")]
-	/// Create a builder from the default path taken from udev.
-	pub fn default() -> Res<Self> {
-		let     context    = try!(udev::Context::new());
-		let mut enumerator = try!(udev::Enumerator::new(&context));
-
-		try!(enumerator.match_subsystem("misc"));
-		try!(enumerator.match_sysname("uinput"));
-
-		let device = try!(try!(enumerator.scan_devices())
-			.next().ok_or(Error::NotFound));
-
-		Builder::open(try!(device.devnode().ok_or(Error::NotFound)))
-	}
-
-	#[cfg(not(feature = "udev"))]
 	/// Create a builder from `/dev/uinput`.
 	pub fn default() -> Res<Self> {
 		Builder::open("/dev/uinput")
@@ -51,11 +35,11 @@ impl Builder {
 
 	/// Set the name.
 	pub fn name<T: AsRef<str>>(mut self, value: T) -> Res<Self> {
-		let string = try!(CString::new(value.as_ref()));
+		let string = CString::new(value.as_ref())?;
 		let bytes  = string.as_bytes_with_nul();
 
 		if bytes.len() > UINPUT_MAX_NAME_SIZE as usize {
-			try!(Err(nix::Error::from_errno(Errno::EINVAL)));
+			Err(nix::Error::from_errno(Errno::EINVAL))?;
 		}
 
 		(&mut self.def.name)[..bytes.len()]
@@ -276,10 +260,10 @@ impl Builder {
 			let ptr  = &self.def as *const _ as *const u8;
 			let size = mem::size_of_val(&self.def);
 
-			try!(unistd::write(self.fd, slice::from_raw_parts(ptr, size)));
+			unistd::write(self.fd, slice::from_raw_parts(ptr, size))?;
 			//todo: try!(Errno::result(ui_dev_create(self.fd)));
 			// try1: Errno::result(ui_dev_create(self.fd)).unwrap();
-			try!(Errno::result(ui_dev_create(self.fd)));
+			Errno::result(ui_dev_create(self.fd))?;
 		}
 
 		Ok(Device::new(self.fd))

src/device/device.rs

@@ -2,7 +2,7 @@ use std::{mem, ptr, slice};
 use libc::{timeval, gettimeofday, input_event, c_int};
 use nix::{unistd, errno::Errno};
 use ffi::*;
-use {Result as Res};
+use crate::{Result as Res};
 
 /// The virtual device.
 pub struct Device {
@@ -37,7 +37,7 @@ impl Device {
 			let ptr  = event as *const _ as *const u8;
 			let size = mem::size_of_val(event);
 
-			try!(unistd::write(self.fd, slice::from_raw_parts(ptr, size)));
+			unistd::write(self.fd, slice::from_raw_parts(ptr, size))?;
 		}
 
 		Ok(())
@@ -65,8 +65,8 @@ impl Device {
 
 	/// Send a press and release event.
 	pub fn click(&self, kind: c_int, code: c_int) -> Res<()> {
-		try!(self.press(kind, code));
-		try!(self.release(kind, code));
+		self.press(kind, code)?;
+		self.release(kind, code)?;
 
 		Ok(())
 	}

src/device/input_device.rs

@@ -3,7 +3,7 @@ use std::fs::File;
 use std::io::Read;
 use std::os::unix::io::AsRawFd;
 use libc::{input_event, c_int};
-use {Error,Result};
+use crate::{Error,Result};
 
 ioctl_write_ptr!(eviocgrab, b'E', 0x90, c_int);
 

src/keymapper.rs

@@ -1,5 +1,5 @@
 
-use device::Device;
+use crate::Device;
 
 use ffi::*;
 use libc::{c_int, input_event};
@@ -8,7 +8,7 @@ use std::fs::File;
 use std::io::Read;
 use std::collections::HashMap;
 
-use {Error, Result};
+use crate::{Error, Result};
 
 // 1 is down, 0 is up
 const DOWN: i32 = 1;