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#![warn(clippy::manual_map)]
#![allow(
clippy::no_effect,
clippy::map_identity,
clippy::unit_arg,
clippy::match_ref_pats,
clippy::redundant_pattern_matching,
clippy::unnecessary_map_on_constructor,
for_loops_over_fallibles,
dead_code
)]
fn main() {
match Some(0) {
Some(_) => Some(2),
None::<u32> => None,
};
match Some(0) {
Some(x) => Some(x + 1),
_ => None,
};
match Some("") {
Some(x) => Some(x.is_empty()),
None => None,
};
if let Some(x) = Some(0) {
Some(!x)
} else {
None
};
#[rustfmt::skip]
match Some(0) {
Some(x) => { Some(std::convert::identity(x)) }
None => { None }
};
match Some(&String::new()) {
Some(x) => Some(str::len(x)),
None => None,
};
match Some(0) {
Some(x) if false => Some(x + 1),
_ => None,
};
match &Some([0, 1]) {
Some(x) => Some(x[0]),
&None => None,
};
match &Some(0) {
&Some(x) => Some(x * 2),
None => None,
};
match Some(String::new()) {
Some(ref x) => Some(x.is_empty()),
_ => None,
};
match &&Some(String::new()) {
Some(x) => Some(x.len()),
_ => None,
};
match &&Some(0) {
&&Some(x) => Some(x + x),
&&_ => None,
};
#[warn(clippy::option_map_unit_fn)]
match &mut Some(String::new()) {
Some(x) => Some(x.push_str("")),
None => None,
};
#[allow(clippy::option_map_unit_fn)]
{
match &mut Some(String::new()) {
Some(x) => Some(x.push_str("")),
None => None,
};
}
match &mut Some(String::new()) {
Some(ref x) => Some(x.len()),
None => None,
};
match &mut &Some(String::new()) {
Some(x) => Some(x.is_empty()),
&mut _ => None,
};
match Some((0, 1, 2)) {
Some((x, y, z)) => Some(x + y + z),
None => None,
};
match Some([1, 2, 3]) {
Some([first, ..]) => Some(first),
None => None,
};
match &Some((String::new(), "test")) {
Some((x, y)) => Some((y, x)),
None => None,
};
match Some((String::new(), 0)) {
Some((ref x, y)) => Some((y, x)),
None => None,
};
match Some(Some(0)) {
Some(Some(_)) | Some(None) => Some(0),
None => None,
};
match Some(Some((0, 1))) {
Some(Some((x, 1))) => Some(x),
_ => None,
};
// #6795
fn f1() -> Result<(), ()> {
let _ = match Some(Ok(())) {
Some(x) => Some(x?),
None => None,
};
Ok(())
}
for &x in Some(Some(true)).iter() {
let _ = match x {
Some(x) => Some(if x { continue } else { x }),
None => None,
};
}
// #6797
let x1 = (Some(String::new()), 0);
let x2 = x1.0;
match x2 {
Some(x) => Some((x, x1.1)),
None => None,
};
struct S1 {
x: Option<String>,
y: u32,
}
impl S1 {
fn f(self) -> Option<(String, u32)> {
match self.x {
Some(x) => Some((x, self.y)),
None => None,
}
}
}
// #6811
match Some(0) {
Some(x) => Some(vec![x]),
None => None,
};
match option_env!("") {
Some(x) => Some(String::from(x)),
None => None,
};
// #6819
async fn f2(x: u32) -> u32 {
x
}
async fn f3() {
match Some(0) {
Some(x) => Some(f2(x).await),
None => None,
};
}
// #6847
if let Some(_) = Some(0) {
Some(0)
} else if let Some(x) = Some(0) {
Some(x + 1)
} else {
None
};
if true {
Some(0)
} else if let Some(x) = Some(0) {
Some(x + 1)
} else {
None
};
// #6967
const fn f4() {
match Some(0) {
Some(x) => Some(x + 1),
None => None,
};
}
// #7077
let s = &String::new();
#[allow(clippy::needless_match)]
let _: Option<&str> = match Some(s) {
Some(s) => Some(s),
None => None,
};
}
|
