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Implement assertions and fixes to not emit empty spans without suggestions

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This commit is contained in:
Kevin Per 2022-10-11 16:17:59 +00:00
parent 4f50e6f41e
commit 56506730c8
4 changed files with 30 additions and 103 deletions
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12
clippy_lints/src/manual_assert.rs
View file

@ -69,11 +69,13 @@ impl<'tcx> LateLintPass<'tcx> for ManualAssert {
"only a `panic!` in `if`-then statement",
|diag| {
// comments can be noisy, do not show them to the user
diag.tool_only_span_suggestion(
expr.span.shrink_to_lo(),
"add comments back",
comments,
applicability);
if !comments.is_empty() {
diag.tool_only_span_suggestion(
expr.span.shrink_to_lo(),
"add comments back",
comments,
applicability);
}
diag.span_suggestion(
expr.span,
"try instead",

11
clippy_lints/src/needless_late_init.rs
View file

@ -180,10 +180,13 @@ fn assignment_suggestions<'tcx>(
let suggestions = assignments
.iter()
.flat_map(|assignment| {
[
assignment.span.until(assignment.rhs_span),
assignment.rhs_span.shrink_to_hi().with_hi(assignment.span.hi()),
]
let mut spans = vec![assignment.span.until(assignment.rhs_span)];
if assignment.rhs_span.hi() != assignment.span.hi() {
spans.push(assignment.rhs_span.shrink_to_hi().with_hi(assignment.span.hi()));
}
spans
})
.map(|span| (span, String::new()))
.collect::<Vec<(Span, String)>>();

55
tests/ui/manual_assert.edition2018.stderr
View file

@ -4,13 +4,9 @@ error: only a `panic!` in `if`-then statement
LL | / if !a.is_empty() {
LL | | panic!("qaqaq{:?}", a);
LL | | }
| |_____^
| |_____^ help: try instead: `assert!(a.is_empty(), "qaqaq{:?}", a);`
|
= note: `-D clippy::manual-assert` implied by `-D warnings`
help: try instead
|
LL | assert!(a.is_empty(), "qaqaq{:?}", a);
|
error: only a `panic!` in `if`-then statement
--> $DIR/manual_assert.rs:34:5
@ -18,12 +14,7 @@ error: only a `panic!` in `if`-then statement
LL | / if !a.is_empty() {
LL | | panic!("qwqwq");
LL | | }
| |_____^
|
help: try instead
|
LL | assert!(a.is_empty(), "qwqwq");
|
| |_____^ help: try instead: `assert!(a.is_empty(), "qwqwq");`
error: only a `panic!` in `if`-then statement
--> $DIR/manual_assert.rs:51:5
@ -31,12 +22,7 @@ error: only a `panic!` in `if`-then statement
LL | / if b.is_empty() {
LL | | panic!("panic1");
LL | | }
| |_____^
|
help: try instead
|
LL | assert!(!b.is_empty(), "panic1");
|
| |_____^ help: try instead: `assert!(!b.is_empty(), "panic1");`
error: only a `panic!` in `if`-then statement
--> $DIR/manual_assert.rs:54:5
@ -44,12 +30,7 @@ error: only a `panic!` in `if`-then statement
LL | / if b.is_empty() && a.is_empty() {
LL | | panic!("panic2");
LL | | }
| |_____^
|
help: try instead
|
LL | assert!(!(b.is_empty() && a.is_empty()), "panic2");
|
| |_____^ help: try instead: `assert!(!(b.is_empty() && a.is_empty()), "panic2");`
error: only a `panic!` in `if`-then statement
--> $DIR/manual_assert.rs:57:5
@ -57,12 +38,7 @@ error: only a `panic!` in `if`-then statement
LL | / if a.is_empty() && !b.is_empty() {
LL | | panic!("panic3");
LL | | }
| |_____^
|
help: try instead
|
LL | assert!(!(a.is_empty() && !b.is_empty()), "panic3");
|
| |_____^ help: try instead: `assert!(!(a.is_empty() && !b.is_empty()), "panic3");`
error: only a `panic!` in `if`-then statement
--> $DIR/manual_assert.rs:60:5
@ -70,12 +46,7 @@ error: only a `panic!` in `if`-then statement
LL | / if b.is_empty() || a.is_empty() {
LL | | panic!("panic4");
LL | | }
| |_____^
|
help: try instead
|
LL | assert!(!(b.is_empty() || a.is_empty()), "panic4");
|
| |_____^ help: try instead: `assert!(!(b.is_empty() || a.is_empty()), "panic4");`
error: only a `panic!` in `if`-then statement
--> $DIR/manual_assert.rs:63:5
@ -83,12 +54,7 @@ error: only a `panic!` in `if`-then statement
LL | / if a.is_empty() || !b.is_empty() {
LL | | panic!("panic5");
LL | | }
| |_____^
|
help: try instead
|
LL | assert!(!(a.is_empty() || !b.is_empty()), "panic5");
|
| |_____^ help: try instead: `assert!(!(a.is_empty() || !b.is_empty()), "panic5");`
error: only a `panic!` in `if`-then statement
--> $DIR/manual_assert.rs:66:5
@ -96,12 +62,7 @@ error: only a `panic!` in `if`-then statement
LL | / if a.is_empty() {
LL | | panic!("with expansion {}", one!())
LL | | }
| |_____^
|
help: try instead
|
LL | assert!(!a.is_empty(), "with expansion {}", one!());
|
| |_____^ help: try instead: `assert!(!a.is_empty(), "with expansion {}", one!());`
error: only a `panic!` in `if`-then statement
--> $DIR/manual_assert.rs:73:5

55
tests/ui/manual_assert.edition2021.stderr
View file

@ -4,13 +4,9 @@ error: only a `panic!` in `if`-then statement
LL | / if !a.is_empty() {
LL | | panic!("qaqaq{:?}", a);
LL | | }
| |_____^
| |_____^ help: try instead: `assert!(a.is_empty(), "qaqaq{:?}", a);`
|
= note: `-D clippy::manual-assert` implied by `-D warnings`
help: try instead
|
LL | assert!(a.is_empty(), "qaqaq{:?}", a);
|
error: only a `panic!` in `if`-then statement
--> $DIR/manual_assert.rs:34:5
@ -18,12 +14,7 @@ error: only a `panic!` in `if`-then statement
LL | / if !a.is_empty() {
LL | | panic!("qwqwq");
LL | | }
| |_____^
|
help: try instead
|
LL | assert!(a.is_empty(), "qwqwq");
|
| |_____^ help: try instead: `assert!(a.is_empty(), "qwqwq");`
error: only a `panic!` in `if`-then statement
--> $DIR/manual_assert.rs:51:5
@ -31,12 +22,7 @@ error: only a `panic!` in `if`-then statement
LL | / if b.is_empty() {
LL | | panic!("panic1");
LL | | }
| |_____^
|
help: try instead
|
LL | assert!(!b.is_empty(), "panic1");
|
| |_____^ help: try instead: `assert!(!b.is_empty(), "panic1");`
error: only a `panic!` in `if`-then statement
--> $DIR/manual_assert.rs:54:5
@ -44,12 +30,7 @@ error: only a `panic!` in `if`-then statement
LL | / if b.is_empty() && a.is_empty() {
LL | | panic!("panic2");
LL | | }
| |_____^
|
help: try instead
|
LL | assert!(!(b.is_empty() && a.is_empty()), "panic2");
|
| |_____^ help: try instead: `assert!(!(b.is_empty() && a.is_empty()), "panic2");`
error: only a `panic!` in `if`-then statement
--> $DIR/manual_assert.rs:57:5
@ -57,12 +38,7 @@ error: only a `panic!` in `if`-then statement
LL | / if a.is_empty() && !b.is_empty() {
LL | | panic!("panic3");
LL | | }
| |_____^
|
help: try instead
|
LL | assert!(!(a.is_empty() && !b.is_empty()), "panic3");
|
| |_____^ help: try instead: `assert!(!(a.is_empty() && !b.is_empty()), "panic3");`
error: only a `panic!` in `if`-then statement
--> $DIR/manual_assert.rs:60:5
@ -70,12 +46,7 @@ error: only a `panic!` in `if`-then statement
LL | / if b.is_empty() || a.is_empty() {
LL | | panic!("panic4");
LL | | }
| |_____^
|
help: try instead
|
LL | assert!(!(b.is_empty() || a.is_empty()), "panic4");
|
| |_____^ help: try instead: `assert!(!(b.is_empty() || a.is_empty()), "panic4");`
error: only a `panic!` in `if`-then statement
--> $DIR/manual_assert.rs:63:5
@ -83,12 +54,7 @@ error: only a `panic!` in `if`-then statement
LL | / if a.is_empty() || !b.is_empty() {
LL | | panic!("panic5");
LL | | }
| |_____^
|
help: try instead
|
LL | assert!(!(a.is_empty() || !b.is_empty()), "panic5");
|
| |_____^ help: try instead: `assert!(!(a.is_empty() || !b.is_empty()), "panic5");`
error: only a `panic!` in `if`-then statement
--> $DIR/manual_assert.rs:66:5
@ -96,12 +62,7 @@ error: only a `panic!` in `if`-then statement
LL | / if a.is_empty() {
LL | | panic!("with expansion {}", one!())
LL | | }
| |_____^
|
help: try instead
|
LL | assert!(!a.is_empty(), "with expansion {}", one!());
|
| |_____^ help: try instead: `assert!(!a.is_empty(), "with expansion {}", one!());`
error: only a `panic!` in `if`-then statement
--> $DIR/manual_assert.rs:73:5