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Fixed build warnings due to deprecated try!() and Error::description #13

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Fixed build warnings due to deprecated try!() and Error::description #13

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4c92ac8
try!() macro replaced by ?
luukvanderduim Dec 10, 2020
6acd5db
Removed a duplicate '&'
luukvanderduim Dec 10, 2020
bc7db5e
Reinstated Error trait implementation and import.
luukvanderduim Dec 11, 2020
bfac4a0
- implemented Error traits source() method
luukvanderduim Dec 11, 2020
7637197
Update src/error.rs
luukvanderduim Dec 11, 2020
9db49dc
add formatter to write!() in Display for Error impl
luukvanderduim Dec 11, 2020
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78 changes: 39 additions & 39 deletions src/device/builder.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -23,7 +23,7 @@ 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,
})
Expand All @@ -32,16 +32,16 @@ impl Builder {
#[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));
let context = udev::Context::new()?;
let mut enumerator = udev::Enumerator::new(&context)?;

try!(enumerator.match_subsystem("misc"));
try!(enumerator.match_sysname("uinput"));
enumerator.match_subsystem("misc")?;
enumerator.match_sysname("uinput")?;

let device = try!(try!(enumerator.scan_devices())
.next().ok_or(Error::NotFound));
let device = enumerator.scan_devices()?
.next().ok_or(Error::NotFound)?;

Builder::open(try!(device.devnode().ok_or(Error::NotFound)))
Builder::open(device.devnode().ok_or(Error::NotFound)?)
}

#[cfg(not(feature = "udev"))]
Expand All @@ -52,11 +52,11 @@ 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()]
Expand Down Expand Up @@ -95,7 +95,7 @@ impl Builder {

match value.into() {
Event::All => {
try!(self.event(Event::Keyboard(event::Keyboard::All)))
self.event(Event::Keyboard(event::Keyboard::All))?
.event(Event::Controller(event::Controller::All))
}

Expand All @@ -105,52 +105,52 @@ impl Builder {
let mut builder = self;

for item in event::keyboard::Key::iter_variants() {
builder = try!(builder.event(item));
builder = builder.event(item)?;
}

for item in event::keyboard::KeyPad::iter_variants() {
builder = try!(builder.event(item));
builder = builder.event(item)?;
}

for item in event::keyboard::Misc::iter_variants() {
builder = try!(builder.event(item));
builder = builder.event(item)?;
}

for item in event::keyboard::InputAssist::iter_variants() {
builder = try!(builder.event(item));
builder = builder.event(item)?;
}

for item in event::keyboard::Function::iter_variants() {
builder = try!(builder.event(item));
builder = builder.event(item)?;
}

for item in event::keyboard::Braille::iter_variants() {
builder = try!(builder.event(item));
builder = builder.event(item)?;
}

for item in event::keyboard::Numeric::iter_variants() {
builder = try!(builder.event(item));
builder = builder.event(item)?;
}

for item in event::keyboard::TouchPad::iter_variants() {
builder = try!(builder.event(item));
builder = builder.event(item)?;
}

for item in event::keyboard::Camera::iter_variants() {
builder = try!(builder.event(item));
builder = builder.event(item)?;
}

for item in event::keyboard::Attendant::iter_variants() {
builder = try!(builder.event(item));
builder = builder.event(item)?;
}

Ok(builder)
}

value => {
unsafe {
try!(Errno::result(ui_set_evbit(self.fd, value.kind())));
try!(Errno::result(ui_set_keybit(self.fd, value.code())));
Errno::result(ui_set_evbit(self.fd, value.kind()))?;
Errno::result(ui_set_keybit(self.fd, value.code()))?;
}

Ok(self)
Expand All @@ -164,44 +164,44 @@ impl Builder {
let mut builder = self;

for item in event::controller::Misc::iter_variants() {
builder = try!(builder.event(item));
builder = builder.event(item)?;
}

for item in event::controller::Mouse::iter_variants() {
builder = try!(builder.event(item));
builder = builder.event(item)?;
}

for item in event::controller::JoyStick::iter_variants() {
builder = try!(builder.event(item));
builder = builder.event(item)?;
}

for item in event::controller::GamePad::iter_variants() {
builder = try!(builder.event(item));
builder = builder.event(item)?;
}

for item in event::controller::Digi::iter_variants() {
builder = try!(builder.event(item));
builder = builder.event(item)?;
}

for item in event::controller::Wheel::iter_variants() {
builder = try!(builder.event(item));
builder = builder.event(item)?;
}

for item in event::controller::DPad::iter_variants() {
builder = try!(builder.event(item));
builder = builder.event(item)?;
}

for item in event::controller::TriggerHappy::iter_variants() {
builder = try!(builder.event(item));
builder = builder.event(item)?;
}

Ok(builder)
}

value => {
unsafe {
try!(Errno::result(ui_set_evbit(self.fd, value.kind())));
try!(Errno::result(ui_set_keybit(self.fd, value.code())));
Errno::result(ui_set_evbit(self.fd, value.kind()))?;
Errno::result(ui_set_keybit(self.fd, value.code()))?;
}

Ok(self)
Expand All @@ -211,17 +211,17 @@ impl Builder {

Event::Relative(value) => {
unsafe {
try!(Errno::result(ui_set_evbit(self.fd, value.kind())));
try!(Errno::result(ui_set_relbit(self.fd, value.code())));
Errno::result(ui_set_evbit(self.fd, value.kind()))?;
Errno::result(ui_set_relbit(self.fd, value.code()))?;
}

Ok(self)
}

Event::Absolute(value) => {
unsafe {
try!(Errno::result(ui_set_evbit(self.fd, value.kind())));
try!(Errno::result(ui_set_absbit(self.fd, value.code())));
Errno::result(ui_set_evbit(self.fd, value.kind()))?;
Errno::result(ui_set_absbit(self.fd, value.code()))?;
}

self.abs = Some(value.code());
Expand Down Expand Up @@ -261,8 +261,8 @@ 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)));
try!(Errno::result(ui_dev_create(self.fd)));
unistd::write(self.fd, slice::from_raw_parts(ptr, size))?;
Errno::result(ui_dev_create(self.fd))?;
}

Ok(Device::new(self.fd))
Expand Down
6 changes: 3 additions & 3 deletions src/device/device.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -34,7 +34,7 @@ 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(())
Expand Down Expand Up @@ -63,8 +63,8 @@ impl Device {

/// Send a press and release event.
pub fn click<T: event::Press + event::Release>(&mut self, event: &T) -> Res<()> {
try!(self.press(event));
try!(self.release(event));
self.press(event)?;
self.release(event)?;

Ok(())
}
Expand Down
20 changes: 1 addition & 19 deletions src/error.rs
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Original file line number Diff line number Diff line change
@@ -1,5 +1,4 @@
use std::fmt;
use std::error;
use std::ffi;
use nix;

Expand Down Expand Up @@ -44,25 +43,8 @@ impl From<udev::Error> for Error {

impl fmt::Display for Error {
fn fmt(&self, f: &mut fmt::Formatter) -> Result<(), fmt::Error> {
f.write_str(error::Error::description(self))
f.write_str(format!("{}", self).as_str())
}
}

impl error::Error for Error {
fn description(&self) -> &str {
match self {
&Error::Nix(ref err) =>
err.description(),

&Error::Nul(ref err) =>
err.description(),

#[cfg(feature = "udev")]
&Error::Udev(ref err) =>
err.description(),

&Error::NotFound =>
"Device not found.",
}
}
}