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#![allow(unused)]
#![warn(clippy::ref_option_ref)]
// This lint is not tagged as run-rustfix because automatically
// changing the type of a variable would also means changing
// all usages of this variable to match and This is not handled
// by this lint.
static THRESHOLD: i32 = 10;
static REF_THRESHOLD: &Option<&i32> = &Some(&THRESHOLD);
const CONST_THRESHOLD: &i32 = &10;
const REF_CONST: &Option<&i32> = &Some(CONST_THRESHOLD);
type RefOptRefU32<'a> = &'a Option<&'a u32>;
type RefOptRef<'a, T> = &'a Option<&'a T>;
fn foo(data: &Option<&u32>) {}
fn bar(data: &u32) -> &Option<&u32> {
&None
}
struct StructRef<'a> {
data: &'a Option<&'a u32>,
}
struct StructTupleRef<'a>(u32, &'a Option<&'a u32>);
enum EnumRef<'a> {
Variant1(u32),
Variant2(&'a Option<&'a u32>),
}
trait RefOptTrait {
type A;
fn foo(&self, _: Self::A);
}
impl RefOptTrait for u32 {
type A = &'static Option<&'static Self>;
fn foo(&self, _: Self::A) {}
}
fn main() {
let x: &Option<&u32> = &None;
}
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