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Auto merge of #7996 - togami2864:test-map-or-none, r=Manishearth

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Add test case for RESULT_MAP_OR_INTO_OPTION

just added test case for RESULT_MAP_OR_INTO_OPTION.
changelog: none
This commit is contained in:
bors 2021-11-19 07:47:39 +00:00
commit 0d283cc44c
3 changed files with 21 additions and 5 deletions
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4
tests/ui/option_map_or_none.fixed
View file

@ -4,6 +4,7 @@
fn main() {
let opt = Some(1);
let r: Result<i32, i32> = Ok(1);
let bar = |_| Some(1);
// Check `OPTION_MAP_OR_NONE`.
@ -19,4 +20,7 @@ fn main() {
let height = x;
Some(offset + height)
});
// Check `RESULT_MAP_OR_INTO_OPTION`.
let _: Option<i32> = r.ok();
}

4
tests/ui/option_map_or_none.rs
View file

@ -4,6 +4,7 @@
fn main() {
let opt = Some(1);
let r: Result<i32, i32> = Ok(1);
let bar = |_| Some(1);
// Check `OPTION_MAP_OR_NONE`.
@ -21,4 +22,7 @@ fn main() {
let height = x;
Some(offset + height)
});
// Check `RESULT_MAP_OR_INTO_OPTION`.
let _: Option<i32> = r.map_or(None, Some);
}

18
tests/ui/option_map_or_none.stderr
View file

@ -1,5 +1,5 @@
error: called `map_or(None, ..)` on an `Option` value. This can be done more directly by calling `map(..)` instead
--> $DIR/option_map_or_none.rs:11:26
--> $DIR/option_map_or_none.rs:12:26
|
LL | let _: Option<i32> = opt.map_or(None, |x| Some(x + 1));
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try using `map` instead: `opt.map(|x| x + 1)`
@ -7,7 +7,7 @@ LL | let _: Option<i32> = opt.map_or(None, |x| Some(x + 1));
= note: `-D clippy::option-map-or-none` implied by `-D warnings`
error: called `map_or(None, ..)` on an `Option` value. This can be done more directly by calling `map(..)` instead
--> $DIR/option_map_or_none.rs:14:26
--> $DIR/option_map_or_none.rs:15:26
|
LL | let _: Option<i32> = opt.map_or(None, |x| {
| __________________________^
@ -16,13 +16,13 @@ LL | | });
| |_________________________^ help: try using `map` instead: `opt.map(|x| x + 1)`
error: called `map_or(None, ..)` on an `Option` value. This can be done more directly by calling `and_then(..)` instead
--> $DIR/option_map_or_none.rs:18:26
--> $DIR/option_map_or_none.rs:19:26
|
LL | let _: Option<i32> = opt.map_or(None, bar);
| ^^^^^^^^^^^^^^^^^^^^^ help: try using `and_then` instead: `opt.and_then(bar)`
error: called `map_or(None, ..)` on an `Option` value. This can be done more directly by calling `and_then(..)` instead
--> $DIR/option_map_or_none.rs:19:26
--> $DIR/option_map_or_none.rs:20:26
|
LL | let _: Option<i32> = opt.map_or(None, |x| {
| __________________________^
@ -41,5 +41,13 @@ LL + Some(offset + height)
LL ~ });
|
error: aborting due to 4 previous errors
error: called `map_or(None, Some)` on a `Result` value. This can be done more directly by calling `ok()` instead
--> $DIR/option_map_or_none.rs:27:26
|
LL | let _: Option<i32> = r.map_or(None, Some);
| ^^^^^^^^^^^^^^^^^^^^ help: try using `ok` instead: `r.ok()`
|
= note: `-D clippy::result-map-or-into-option` implied by `-D warnings`
error: aborting due to 5 previous errors