// run-rustfix
+#![feature(custom_inner_attributes)]
#![warn(clippy::match_like_matches_macro)]
-#![allow(unreachable_patterns, dead_code)]
+#![allow(unreachable_patterns, dead_code, clippy::equatable_if_let)]
fn main() {
let x = Some(5);
B(i32),
C,
D,
- };
+ }
let x = E::A(2);
{
// lint
_ => false,
};
}
+ {
+ // lint
+ // skip rustfmt to prevent removing block for first pattern
+ #[rustfmt::skip]
+ let _ans = match x {
+ E::A(_) => {
+ true
+ }
+ E::B(_) => true,
+ _ => false,
+ };
+ }
{
// lint
let _ans = match x {
_ => false,
};
}
+
+ {
+ // should print "z" in suggestion (#6503)
+ let z = &Some(3);
+ let _z = match &z {
+ Some(3) => true,
+ _ => false,
+ };
+ }
+
+ {
+ // this could also print "z" in suggestion..?
+ let z = Some(3);
+ let _z = match &z {
+ Some(3) => true,
+ _ => false,
+ };
+ }
+
+ {
+ enum AnEnum {
+ X,
+ Y,
+ }
+
+ fn foo(_x: AnEnum) {}
+
+ fn main() {
+ let z = AnEnum::X;
+ // we can't remove the reference here!
+ let _ = match &z {
+ AnEnum::X => true,
+ _ => false,
+ };
+ foo(z);
+ }
+ }
+
+ {
+ struct S(i32);
+
+ fn fun(_val: Option<S>) {}
+ let val = Some(S(42));
+ // we need the reference here because later val is consumed by fun()
+ let _res = match &val {
+ &Some(ref _a) => true,
+ _ => false,
+ };
+ fun(val);
+ }
+
+ {
+ struct S(i32);
+
+ fn fun(_val: Option<S>) {}
+ let val = Some(S(42));
+ let _res = match &val {
+ &Some(ref _a) => true,
+ _ => false,
+ };
+ fun(val);
+ }
+
+ {
+ enum E {
+ A,
+ B,
+ C,
+ }
+
+ let _ = match E::A {
+ E::B => true,
+ #[cfg(feature = "foo")]
+ E::A => true,
+ _ => false,
+ };
+ }
+
+ let x = ' ';
+ // ignore if match block contains comment
+ let _line_comments = match x {
+ // numbers are bad!
+ '1' | '2' | '3' => true,
+ // spaces are very important to be true.
+ ' ' => true,
+ // as are dots
+ '.' => true,
+ _ => false,
+ };
+
+ let _block_comments = match x {
+ /* numbers are bad!
+ */
+ '1' | '2' | '3' => true,
+ /* spaces are very important to be true.
+ */
+ ' ' => true,
+ /* as are dots
+ */
+ '.' => true,
+ _ => false,
+ };
+}
+
+fn msrv_1_41() {
+ #![clippy::msrv = "1.41"]
+
+ let _y = match Some(5) {
+ Some(0) => true,
+ _ => false,
+ };
+}
+
+fn msrv_1_42() {
+ #![clippy::msrv = "1.42"]
+
+ let _y = match Some(5) {
+ Some(0) => true,
+ _ => false,
+ };
}