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if_let_redundant_pattern_matching: use Span.to() instead of Span.with_hi() to fix crash.

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Fixes #3064
This commit is contained in:
Matthias Krüger 2018-09-28 21:09:57 +02:00
parent d67286b70b
commit a578cb2d62
2 changed files with 14 additions and 8 deletions
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2
clippy_lints/src/if_let_redundant_pattern_matching.rs
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@ -87,7 +87,7 @@ impl<'a, 'tcx> LateLintPass<'a, 'tcx> for Pass {
arms[0].pats[0].span,
&format!("redundant pattern matching, consider using `{}`", good_method),
|db| {
let span = expr.span.with_hi(op.span.hi());
let span = expr.span.to(op.span);
db.span_suggestion_with_applicability(
span,
"try this",

14
tests/ui/if_let_redundant_pattern_matching.stderr
View File

@ -2,7 +2,7 @@ error: redundant pattern matching, consider using `is_ok()`
--> $DIR/if_let_redundant_pattern_matching.rs:19:12
|
19 | if let Ok(_) = Ok::<i32, i32>(42) {}
| -------^^^^^--------------------- help: try this: `if Ok::<i32, i32>(42).is_ok()`
| -------^^^^^------------------------ help: try this: `if Ok::<i32, i32>(42).is_ok()`
|
= note: `-D clippy::if-let-redundant-pattern-matching` implied by `-D warnings`
@ -10,19 +10,25 @@ error: redundant pattern matching, consider using `is_err()`
--> $DIR/if_let_redundant_pattern_matching.rs:21:12
|
21 | if let Err(_) = Err::<i32, i32>(42) {
| -------^^^^^^---------------------- help: try this: `if Err::<i32, i32>(42).is_err()`
| _____- ^^^^^^
22 | | }
| |_____- help: try this: `if Err::<i32, i32>(42).is_err()`
error: redundant pattern matching, consider using `is_none()`
--> $DIR/if_let_redundant_pattern_matching.rs:24:12
|
24 | if let None = None::<()> {
| -------^^^^------------- help: try this: `if None::<()>.is_none()`
| _____- ^^^^
25 | | }
| |_____- help: try this: `if None::<()>.is_none()`
error: redundant pattern matching, consider using `is_some()`
--> $DIR/if_let_redundant_pattern_matching.rs:27:12
|
27 | if let Some(_) = Some(42) {
| -------^^^^^^^----------- help: try this: `if Some(42).is_some()`
| _____- ^^^^^^^
28 | | }
| |_____- help: try this: `if Some(42).is_some()`
error: aborting due to 4 previous errors