rust-clippy/tests/ui/redundant_pattern_matching.stderr
Philipp Hansch 0d85d7e60f
Fix suggestions for redundant_pattern_matching
Fixes the problem displayed in https://github.com/rust-lang/rust-clippy/issues/4344#issuecomment-519206388.

We now append `{}` to the suggestion so that the conditional has the
correct syntax again.

(If we were to _remove_ the `if` instead, it would trigger the
`unused_must_use` warning for `#[must_use]` types.
2019-08-21 07:29:44 +02:00

82 lines
2.7 KiB
Text

error: redundant pattern matching, consider using `is_ok()`
--> $DIR/redundant_pattern_matching.rs:5:12
|
LL | if let Ok(_) = Ok::<i32, i32>(42) {}
| -------^^^^^------------------------ help: try this: `Ok::<i32, i32>(42).is_ok()`
|
= note: `-D clippy::redundant-pattern-matching` implied by `-D warnings`
error: redundant pattern matching, consider using `is_err()`
--> $DIR/redundant_pattern_matching.rs:7:12
|
LL | if let Err(_) = Err::<i32, i32>(42) {}
| -------^^^^^^------------------------- help: try this: `Err::<i32, i32>(42).is_err()`
error: redundant pattern matching, consider using `is_none()`
--> $DIR/redundant_pattern_matching.rs:9:12
|
LL | if let None = None::<()> {}
| -------^^^^---------------- help: try this: `None::<()>.is_none()`
error: redundant pattern matching, consider using `is_some()`
--> $DIR/redundant_pattern_matching.rs:11:12
|
LL | if let Some(_) = Some(42) {}
| -------^^^^^^^-------------- help: try this: `Some(42).is_some()`
error: redundant pattern matching, consider using `is_ok()`
--> $DIR/redundant_pattern_matching.rs:25:5
|
LL | / match Ok::<i32, i32>(42) {
LL | | Ok(_) => true,
LL | | Err(_) => false,
LL | | };
| |_____^ help: try this: `Ok::<i32, i32>(42).is_ok()`
error: redundant pattern matching, consider using `is_err()`
--> $DIR/redundant_pattern_matching.rs:30:5
|
LL | / match Ok::<i32, i32>(42) {
LL | | Ok(_) => false,
LL | | Err(_) => true,
LL | | };
| |_____^ help: try this: `Ok::<i32, i32>(42).is_err()`
error: redundant pattern matching, consider using `is_err()`
--> $DIR/redundant_pattern_matching.rs:35:5
|
LL | / match Err::<i32, i32>(42) {
LL | | Ok(_) => false,
LL | | Err(_) => true,
LL | | };
| |_____^ help: try this: `Err::<i32, i32>(42).is_err()`
error: redundant pattern matching, consider using `is_ok()`
--> $DIR/redundant_pattern_matching.rs:40:5
|
LL | / match Err::<i32, i32>(42) {
LL | | Ok(_) => true,
LL | | Err(_) => false,
LL | | };
| |_____^ help: try this: `Err::<i32, i32>(42).is_ok()`
error: redundant pattern matching, consider using `is_some()`
--> $DIR/redundant_pattern_matching.rs:45:5
|
LL | / match Some(42) {
LL | | Some(_) => true,
LL | | None => false,
LL | | };
| |_____^ help: try this: `Some(42).is_some()`
error: redundant pattern matching, consider using `is_none()`
--> $DIR/redundant_pattern_matching.rs:50:5
|
LL | / match None::<()> {
LL | | Some(_) => false,
LL | | None => true,
LL | | };
| |_____^ help: try this: `None::<()>.is_none()`
error: aborting due to 10 previous errors