Fix FN for collections/smart ptrs in std

This commit is contained in:
Kneasle 2021-09-08 22:51:47 +01:00
parent e0090735f1
commit b2ffb28da5
3 changed files with 161 additions and 37 deletions

View file

@ -1,7 +1,9 @@
use std::cell::Cell;
use std::collections::{HashMap, HashSet};
use std::collections::{BTreeMap, BTreeSet, HashMap, HashSet};
use std::hash::{Hash, Hasher};
use std::rc::Rc;
use std::sync::atomic::{AtomicUsize, Ordering::Relaxed};
use std::sync::Arc;
struct Key(AtomicUsize);
@ -64,4 +66,20 @@ fn main() {
raw_ptr_is_ok(&mut HashMap::new());
raw_mut_ptr_is_ok(&mut HashMap::new());
let _map = HashMap::<Cell<usize>, usize>::new();
let _map = HashMap::<&mut Cell<usize>, usize>::new();
let _map = HashMap::<&mut usize, usize>::new();
// Collection types from `std` who's impl of `Hash` or `Ord` delegate their type parameters
let _map = HashMap::<Vec<Cell<usize>>, usize>::new();
let _map = HashMap::<BTreeMap<Cell<usize>, ()>, usize>::new();
let _map = HashMap::<BTreeMap<(), Cell<usize>>, usize>::new();
let _map = HashMap::<BTreeSet<Cell<usize>>, usize>::new();
let _map = HashMap::<Option<Cell<usize>>, usize>::new();
let _map = HashMap::<Option<Vec<Cell<usize>>>, usize>::new();
let _map = HashMap::<Result<&mut usize, ()>, usize>::new();
// Smart pointers from `std` who's impl of `Hash` or `Ord` delegate their type parameters
let _map = HashMap::<Box<Cell<usize>>, usize>::new();
let _map = HashMap::<Rc<Cell<usize>>, usize>::new();
let _map = HashMap::<Arc<Cell<usize>>, usize>::new();
}

View file

@ -1,5 +1,5 @@
error: mutable key type
--> $DIR/mut_key.rs:28:32
--> $DIR/mut_key.rs:30:32
|
LL | fn should_not_take_this_arg(m: &mut HashMap<Key, usize>, _n: usize) -> HashSet<Key> {
| ^^^^^^^^^^^^^^^^^^^^^^^^
@ -7,22 +7,100 @@ LL | fn should_not_take_this_arg(m: &mut HashMap<Key, usize>, _n: usize) -> Hash
= note: `-D clippy::mutable-key-type` implied by `-D warnings`
error: mutable key type
--> $DIR/mut_key.rs:28:72
--> $DIR/mut_key.rs:30:72
|
LL | fn should_not_take_this_arg(m: &mut HashMap<Key, usize>, _n: usize) -> HashSet<Key> {
| ^^^^^^^^^^^^
error: mutable key type
--> $DIR/mut_key.rs:29:5
--> $DIR/mut_key.rs:31:5
|
LL | let _other: HashMap<Key, bool> = HashMap::new();
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
error: mutable key type
--> $DIR/mut_key.rs:56:22
--> $DIR/mut_key.rs:58:22
|
LL | fn tuples_bad<U>(_m: &mut HashMap<(Key, U), bool>) {}
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
error: aborting due to 4 previous errors
error: mutable key type
--> $DIR/mut_key.rs:70:5
|
LL | let _map = HashMap::<Cell<usize>, usize>::new();
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
error: mutable key type
--> $DIR/mut_key.rs:71:5
|
LL | let _map = HashMap::<&mut Cell<usize>, usize>::new();
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
error: mutable key type
--> $DIR/mut_key.rs:72:5
|
LL | let _map = HashMap::<&mut usize, usize>::new();
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
error: mutable key type
--> $DIR/mut_key.rs:74:5
|
LL | let _map = HashMap::<Vec<Cell<usize>>, usize>::new();
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
error: mutable key type
--> $DIR/mut_key.rs:75:5
|
LL | let _map = HashMap::<BTreeMap<Cell<usize>, ()>, usize>::new();
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
error: mutable key type
--> $DIR/mut_key.rs:76:5
|
LL | let _map = HashMap::<BTreeMap<(), Cell<usize>>, usize>::new();
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
error: mutable key type
--> $DIR/mut_key.rs:77:5
|
LL | let _map = HashMap::<BTreeSet<Cell<usize>>, usize>::new();
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
error: mutable key type
--> $DIR/mut_key.rs:78:5
|
LL | let _map = HashMap::<Option<Cell<usize>>, usize>::new();
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
error: mutable key type
--> $DIR/mut_key.rs:79:5
|
LL | let _map = HashMap::<Option<Vec<Cell<usize>>>, usize>::new();
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
error: mutable key type
--> $DIR/mut_key.rs:80:5
|
LL | let _map = HashMap::<Result<&mut usize, ()>, usize>::new();
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
error: mutable key type
--> $DIR/mut_key.rs:82:5
|
LL | let _map = HashMap::<Box<Cell<usize>>, usize>::new();
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
error: mutable key type
--> $DIR/mut_key.rs:83:5
|
LL | let _map = HashMap::<Rc<Cell<usize>>, usize>::new();
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
error: mutable key type
--> $DIR/mut_key.rs:84:5
|
LL | let _map = HashMap::<Arc<Cell<usize>>, usize>::new();
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
error: aborting due to 17 previous errors