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manual-unwrap-or / pr remarks, round 2

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This commit is contained in:
Tim Nielens 2020-10-22 23:39:59 +02:00
parent f2da0c701e
commit 6533d8becf
4 changed files with 29 additions and 7 deletions
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4
clippy_lints/src/manual_unwrap_or.rs
View file

@ -111,7 +111,9 @@ fn lint_manual_unwrap_or<'tcx>(cx: &LateContext<'tcx>, expr: &'tcx Expr<'tcx>) {
then {
let reindented_or_body =
utils::reindent_multiline(or_body_snippet.into(), true, Some(indent));
let wrap_in_parens = !matches!(scrutinee, Expr { kind: ExprKind::Call(..), .. });
let wrap_in_parens = !matches!(scrutinee, Expr {
kind: ExprKind::Call(..) | ExprKind::Path(_), ..
});
let l_paren = if wrap_in_parens { "(" } else { "" };
let r_paren = if wrap_in_parens { ")" } else { "" };
utils::span_lint_and_sugg(

4
tests/ui/manual_unwrap_or.fixed
View file

@ -70,6 +70,10 @@ fn result_unwrap_or() {
// int case
Ok::<i32, &str>(1).unwrap_or(42);
// int case, scrutinee is a binding
let a = Ok::<i32, &str>(1);
a.unwrap_or(42);
// int case, suggestion must surround with parenthesis
(Ok(1) as Result<i32, &str>).unwrap_or(42);

7
tests/ui/manual_unwrap_or.rs
View file

@ -88,6 +88,13 @@ fn result_unwrap_or() {
Err(_) => 42,
};
// int case, scrutinee is a binding
let a = Ok::<i32, &str>(1);
match a {
Ok(i) => i,
Err(_) => 42,
};
// int case, suggestion must surround with parenthesis
match Ok(1) as Result<i32, &str> {
Ok(i) => i,

21
tests/ui/manual_unwrap_or.stderr
View file

@ -67,7 +67,16 @@ LL | | };
| |_____^ help: replace with: `Ok::<i32, &str>(1).unwrap_or(42)`
error: this pattern reimplements `Result::unwrap_or`
--> $DIR/manual_unwrap_or.rs:92:5
--> $DIR/manual_unwrap_or.rs:93:5
|
LL | / match a {
LL | | Ok(i) => i,
LL | | Err(_) => 42,
LL | | };
| |_____^ help: replace with: `a.unwrap_or(42)`
error: this pattern reimplements `Result::unwrap_or`
--> $DIR/manual_unwrap_or.rs:99:5
|
LL | / match Ok(1) as Result<i32, &str> {
LL | | Ok(i) => i,
@ -76,7 +85,7 @@ LL | | };
| |_____^ help: replace with: `(Ok(1) as Result<i32, &str>).unwrap_or(42)`
error: this pattern reimplements `Result::unwrap_or`
--> $DIR/manual_unwrap_or.rs:98:5
--> $DIR/manual_unwrap_or.rs:105:5
|
LL | / match Ok::<i32, &str>(1) {
LL | | Err(_) => 42,
@ -85,7 +94,7 @@ LL | | };
| |_____^ help: replace with: `Ok::<i32, &str>(1).unwrap_or(42)`
error: this pattern reimplements `Result::unwrap_or`
--> $DIR/manual_unwrap_or.rs:104:5
--> $DIR/manual_unwrap_or.rs:111:5
|
LL | / match Ok::<i32, &str>(1) {
LL | | Ok(i) => i,
@ -94,7 +103,7 @@ LL | | };
| |_____^ help: replace with: `Ok::<i32, &str>(1).unwrap_or(1 + 42)`
error: this pattern reimplements `Result::unwrap_or`
--> $DIR/manual_unwrap_or.rs:111:5
--> $DIR/manual_unwrap_or.rs:118:5
|
LL | / match Ok::<i32, &str>(1) {
LL | | Ok(i) => i,
@ -115,7 +124,7 @@ LL | });
|
error: this pattern reimplements `Result::unwrap_or`
--> $DIR/manual_unwrap_or.rs:121:5
--> $DIR/manual_unwrap_or.rs:128:5
|
LL | / match Ok::<&str, &str>("Bob") {
LL | | Ok(i) => i,
@ -123,5 +132,5 @@ LL | | Err(_) => "Alice",
LL | | };
| |_____^ help: replace with: `Ok::<&str, &str>("Bob").unwrap_or("Alice")`
error: aborting due to 11 previous errors
error: aborting due to 12 previous errors