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Rollup merge of #132936 - surechen:fix_131989, r=Nadrieril

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For expr `return (_ = 42);` unused_paren lint should not be triggered

fixes #131989
This commit is contained in:
Guillaume Gomez 2024-11-15 23:38:09 +01:00 committed by GitHub
commit 1f83a4de1f
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GPG Key ID: B5690EEEBB952194
13 changed files with 189 additions and 40 deletions
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9
compiler/rustc_lint/src/unused.rs
View File

@ -584,6 +584,7 @@ enum UnusedDelimsCtx {
MatchScrutineeExpr,
ReturnValue,
BlockRetValue,
BreakValue,
LetScrutineeExpr,
ArrayLenExpr,
AnonConst,
@ -605,6 +606,7 @@ impl From<UnusedDelimsCtx> for &'static str {
UnusedDelimsCtx::MatchScrutineeExpr => "`match` scrutinee expression",
UnusedDelimsCtx::ReturnValue => "`return` value",
UnusedDelimsCtx::BlockRetValue => "block return value",
UnusedDelimsCtx::BreakValue => "`break` value",
UnusedDelimsCtx::LetScrutineeExpr => "`let` scrutinee expression",
UnusedDelimsCtx::ArrayLenExpr | UnusedDelimsCtx::AnonConst => "const expression",
UnusedDelimsCtx::MatchArmExpr => "match arm expression",
@ -913,6 +915,10 @@ trait UnusedDelimLint {
(value, UnusedDelimsCtx::ReturnValue, false, Some(left), None, true)
}
Break(_, Some(ref value)) => {
(value, UnusedDelimsCtx::BreakValue, false, None, None, true)
}
Index(_, ref value, _) => (value, UnusedDelimsCtx::IndexExpr, false, None, None, false),
Assign(_, ref value, _) | AssignOp(.., ref value) => {
@ -1063,6 +1069,9 @@ impl UnusedDelimLint for UnusedParens {
_,
_,
) if node.is_lazy()))
&& !((ctx == UnusedDelimsCtx::ReturnValue
|| ctx == UnusedDelimsCtx::BreakValue)
&& matches!(inner.kind, ast::ExprKind::Assign(_, _, _)))
{
self.emit_unused_delims_expr(cx, value, ctx, left_pos, right_pos, is_kw)
}

8
tests/ui/lint/unused/issue-54538-unused-parens-lint.fixed
View File

@ -10,7 +10,7 @@
unused_mut,
unused_variables
)]
#![deny(unused_parens)]
#![deny(unused_parens, unused_braces)]
fn lint_on_top_level() {
let a = 0; //~ ERROR unnecessary parentheses around pattern
@ -43,8 +43,10 @@ fn no_lint_ops() {
fn lint_break_if_not_followed_by_block() {
#![allow(unreachable_code)]
loop { if break {} } //~ ERROR unnecessary parentheses
loop { if break ({ println!("hello") }) {} } //~ ERROR unnecessary parentheses
loop { if (break { println!("hello") }) {} }
loop { if break { println!("hello") } {} }
//~^ ERROR unnecessary parentheses around `if` condition
//~| ERROR unnecessary parentheses around `break` value
loop { if (break println!("hello")) {} } //~ ERROR unnecessary braces around `break` value
}
// Don't lint in these cases (#64106).

8
tests/ui/lint/unused/issue-54538-unused-parens-lint.rs
View File

@ -10,7 +10,7 @@
unused_mut,
unused_variables
)]
#![deny(unused_parens)]
#![deny(unused_parens, unused_braces)]
fn lint_on_top_level() {
let (a) = 0; //~ ERROR unnecessary parentheses around pattern
@ -43,8 +43,10 @@ fn no_lint_ops() {
fn lint_break_if_not_followed_by_block() {
#![allow(unreachable_code)]
loop { if (break) {} } //~ ERROR unnecessary parentheses
loop { if (break ({ println!("hello") })) {} } //~ ERROR unnecessary parentheses
loop { if (break { println!("hello") }) {} }
loop { if (break ({ println!("hello") })) {} }
//~^ ERROR unnecessary parentheses around `if` condition
//~| ERROR unnecessary parentheses around `break` value
loop { if (break { println!("hello") }) {} } //~ ERROR unnecessary braces around `break` value
}
// Don't lint in these cases (#64106).

69
tests/ui/lint/unused/issue-54538-unused-parens-lint.stderr
View File

@ -7,7 +7,7 @@ LL | let (a) = 0;
note: the lint level is defined here
--> $DIR/issue-54538-unused-parens-lint.rs:13:9
|
LL | #![deny(unused_parens)]
LL | #![deny(unused_parens, unused_braces)]
| ^^^^^^^^^^^^^
help: remove these parentheses
|
@ -99,8 +99,37 @@ LL - loop { if (break ({ println!("hello") })) {} }
LL + loop { if break ({ println!("hello") }) {} }
|
error: unnecessary parentheses around `break` value
--> $DIR/issue-54538-unused-parens-lint.rs:46:22
|
LL | loop { if (break ({ println!("hello") })) {} }
| ^ ^
|
help: remove these parentheses
|
LL - loop { if (break ({ println!("hello") })) {} }
LL + loop { if (break { println!("hello") }) {} }
|
error: unnecessary braces around `break` value
--> $DIR/issue-54538-unused-parens-lint.rs:49:22
|
LL | loop { if (break { println!("hello") }) {} }
| ^^ ^^
|
note: the lint level is defined here
--> $DIR/issue-54538-unused-parens-lint.rs:13:24
|
LL | #![deny(unused_parens, unused_braces)]
| ^^^^^^^^^^^^^
help: remove these braces
|
LL - loop { if (break { println!("hello") }) {} }
LL + loop { if (break println!("hello")) {} }
|
error: unnecessary parentheses around pattern
--> $DIR/issue-54538-unused-parens-lint.rs:71:12
--> $DIR/issue-54538-unused-parens-lint.rs:73:12
|
LL | if let (0 | 1) = 0 {}
| ^ ^
@ -112,7 +141,7 @@ LL + if let 0 | 1 = 0 {}
|
error: unnecessary parentheses around pattern
--> $DIR/issue-54538-unused-parens-lint.rs:72:13
--> $DIR/issue-54538-unused-parens-lint.rs:74:13
|
LL | if let ((0 | 1),) = (0,) {}
| ^ ^
@ -124,7 +153,7 @@ LL + if let (0 | 1,) = (0,) {}
|
error: unnecessary parentheses around pattern
--> $DIR/issue-54538-unused-parens-lint.rs:73:13
--> $DIR/issue-54538-unused-parens-lint.rs:75:13
|
LL | if let [(0 | 1)] = [0] {}
| ^ ^
@ -136,7 +165,7 @@ LL + if let [0 | 1] = [0] {}
|
error: unnecessary parentheses around pattern
--> $DIR/issue-54538-unused-parens-lint.rs:74:16
--> $DIR/issue-54538-unused-parens-lint.rs:76:16
|
LL | if let 0 | (1 | 2) = 0 {}
| ^ ^
@ -148,7 +177,7 @@ LL + if let 0 | 1 | 2 = 0 {}
|
error: unnecessary parentheses around pattern
--> $DIR/issue-54538-unused-parens-lint.rs:76:15
--> $DIR/issue-54538-unused-parens-lint.rs:78:15
|
LL | if let TS((0 | 1)) = TS(0) {}
| ^ ^
@ -160,7 +189,7 @@ LL + if let TS(0 | 1) = TS(0) {}
|
error: unnecessary parentheses around pattern
--> $DIR/issue-54538-unused-parens-lint.rs:78:20
--> $DIR/issue-54538-unused-parens-lint.rs:80:20
|
LL | if let NS { f: (0 | 1) } = (NS { f: 0 }) {}
| ^ ^
@ -172,7 +201,7 @@ LL + if let NS { f: 0 | 1 } = (NS { f: 0 }) {}
|
error: unnecessary parentheses around pattern
--> $DIR/issue-54538-unused-parens-lint.rs:88:9
--> $DIR/issue-54538-unused-parens-lint.rs:90:9
|
LL | (_) => {}
| ^ ^
@ -184,7 +213,7 @@ LL + _ => {}
|
error: unnecessary parentheses around pattern
--> $DIR/issue-54538-unused-parens-lint.rs:89:9
--> $DIR/issue-54538-unused-parens-lint.rs:91:9
|
LL | (y) => {}
| ^ ^
@ -196,7 +225,7 @@ LL + y => {}
|
error: unnecessary parentheses around pattern
--> $DIR/issue-54538-unused-parens-lint.rs:90:9
--> $DIR/issue-54538-unused-parens-lint.rs:92:9
|
LL | (ref r) => {}
| ^ ^
@ -208,7 +237,7 @@ LL + ref r => {}
|
error: unnecessary parentheses around pattern
--> $DIR/issue-54538-unused-parens-lint.rs:91:9
--> $DIR/issue-54538-unused-parens-lint.rs:93:9
|
LL | (e @ 1...2) => {}
| ^ ^
@ -220,7 +249,7 @@ LL + e @ 1...2 => {}
|
error: unnecessary parentheses around pattern
--> $DIR/issue-54538-unused-parens-lint.rs:97:9
--> $DIR/issue-54538-unused-parens-lint.rs:99:9
|
LL | (e @ &(1...2)) => {}
| ^ ^
@ -232,7 +261,7 @@ LL + e @ &(1...2) => {}
|
error: unnecessary parentheses around pattern
--> $DIR/issue-54538-unused-parens-lint.rs:98:10
--> $DIR/issue-54538-unused-parens-lint.rs:100:10
|
LL | &(_) => {}
| ^ ^
@ -244,7 +273,7 @@ LL + &_ => {}
|
error: unnecessary parentheses around pattern
--> $DIR/issue-54538-unused-parens-lint.rs:109:9
--> $DIR/issue-54538-unused-parens-lint.rs:111:9
|
LL | (_) => {}
| ^ ^
@ -256,7 +285,7 @@ LL + _ => {}
|
error: unnecessary parentheses around pattern
--> $DIR/issue-54538-unused-parens-lint.rs:110:9
--> $DIR/issue-54538-unused-parens-lint.rs:112:9
|
LL | (y) => {}
| ^ ^
@ -268,7 +297,7 @@ LL + y => {}
|
error: unnecessary parentheses around pattern
--> $DIR/issue-54538-unused-parens-lint.rs:111:9
--> $DIR/issue-54538-unused-parens-lint.rs:113:9
|
LL | (ref r) => {}
| ^ ^
@ -280,7 +309,7 @@ LL + ref r => {}
|
error: unnecessary parentheses around pattern
--> $DIR/issue-54538-unused-parens-lint.rs:112:9
--> $DIR/issue-54538-unused-parens-lint.rs:114:9
|
LL | (e @ 1..=2) => {}
| ^ ^
@ -292,7 +321,7 @@ LL + e @ 1..=2 => {}
|
error: unnecessary parentheses around pattern
--> $DIR/issue-54538-unused-parens-lint.rs:118:9
--> $DIR/issue-54538-unused-parens-lint.rs:120:9
|
LL | (e @ &(1..=2)) => {}
| ^ ^
@ -304,7 +333,7 @@ LL + e @ &(1..=2) => {}
|
error: unnecessary parentheses around pattern
--> $DIR/issue-54538-unused-parens-lint.rs:119:10
--> $DIR/issue-54538-unused-parens-lint.rs:121:10
|
LL | &(_) => {}
| ^ ^
@ -315,5 +344,5 @@ LL - &(_) => {}
LL + &_ => {}
|
error: aborting due to 26 previous errors
error: aborting due to 28 previous errors

32
tests/ui/lint/unused/unused-parens-assign-expr-in-ret-issue-131989.fixed Normal file
View File

@ -0,0 +1,32 @@
//@ run-rustfix
#![deny(unused_parens)]
#![allow(unreachable_code)]
fn foo() {
loop {
break (_ = 42);
// lint unused_parens should not be triggered here.
}
let _ = loop {
let a = 1;
let b = 2;
break a + b; //~ERROR unnecessary parentheses
};
loop {
if break return () {
//~^ ERROR unnecessary parentheses
}
if break return () {
//~^ ERROR unnecessary parentheses
}
}
return (_ = 42);
// lint unused_parens should not be triggered here.
}
fn main() {
let _ = foo();
}

32
tests/ui/lint/unused/unused-parens-assign-expr-in-ret-issue-131989.rs Normal file
View File

@ -0,0 +1,32 @@
//@ run-rustfix
#![deny(unused_parens)]
#![allow(unreachable_code)]
fn foo() {
loop {
break (_ = 42);
// lint unused_parens should not be triggered here.
}
let _ = loop {
let a = 1;
let b = 2;
break (a + b); //~ERROR unnecessary parentheses
};
loop {
if (break return ()) {
//~^ ERROR unnecessary parentheses
}
if break (return ()) {
//~^ ERROR unnecessary parentheses
}
}
return (_ = 42);
// lint unused_parens should not be triggered here.
}
fn main() {
let _ = foo();
}

43
tests/ui/lint/unused/unused-parens-assign-expr-in-ret-issue-131989.stderr Normal file
View File

@ -0,0 +1,43 @@
error: unnecessary parentheses around `break` value
--> $DIR/unused-parens-assign-expr-in-ret-issue-131989.rs:14:15
|
LL | break (a + b);
| ^ ^
|
note: the lint level is defined here
--> $DIR/unused-parens-assign-expr-in-ret-issue-131989.rs:2:9
|
LL | #![deny(unused_parens)]
| ^^^^^^^^^^^^^
help: remove these parentheses
|
LL - break (a + b);
LL + break a + b;
|
error: unnecessary parentheses around `if` condition
--> $DIR/unused-parens-assign-expr-in-ret-issue-131989.rs:18:12
|
LL | if (break return ()) {
| ^ ^
|
help: remove these parentheses
|
LL - if (break return ()) {
LL + if break return () {
|
error: unnecessary parentheses around `break` value
--> $DIR/unused-parens-assign-expr-in-ret-issue-131989.rs:21:18
|
LL | if break (return ()) {
| ^ ^
|
help: remove these parentheses
|
LL - if break (return ()) {
LL + if break return () {
|
error: aborting due to 3 previous errors

2
tests/ui/lint/unused_parens_json_suggestion.fixed
View File

@ -9,7 +9,7 @@
// test of the JSON error format.
#![deny(unused_parens)]
#![allow(unreachable_code)]
#![allow(unreachable_code, unused_braces)]
fn main() {
// We want to suggest the properly-balanced expression `1 / (2 + 3)`, not

2
tests/ui/lint/unused_parens_json_suggestion.rs
View File

@ -9,7 +9,7 @@
// test of the JSON error format.
#![deny(unused_parens)]
#![allow(unreachable_code)]
#![allow(unreachable_code, unused_braces)]
fn main() {
// We want to suggest the properly-balanced expression `1 / (2 + 3)`, not

2
tests/ui/lint/unused_parens_json_suggestion.stderr
View File

@ -1,4 +1,4 @@
{"$message_type":"diagnostic","message":"unnecessary parentheses around assigned value","code":{"code":"unused_parens","explanation":null},"level":"error","spans":[{"file_name":"$DIR/unused_parens_json_suggestion.rs","byte_start":621,"byte_end":622,"line_start":17,"line_end":17,"column_start":14,"column_end":15,"is_primary":true,"text":[{"text":" let _a = (1 / (2 + 3));","highlight_start":14,"highlight_end":15}],"label":null,"suggested_replacement":null,"suggestion_applicability":null,"expansion":null},{"file_name":"$DIR/unused_parens_json_suggestion.rs","byte_start":633,"byte_end":634,"line_start":17,"line_end":17,"column_start":26,"column_end":27,"is_primary":true,"text":[{"text":" let _a = (1 / (2 + 3));","highlight_start":26,"highlight_end":27}],"label":null,"suggested_replacement":null,"suggestion_applicability":null,"expansion":null}],"children":[{"message":"the lint level is defined here","code":null,"level":"note","spans":[{"file_name":"$DIR/unused_parens_json_suggestion.rs","byte_start":439,"byte_end":452,"line_start":11,"line_end":11,"column_start":9,"column_end":22,"is_primary":true,"text":[{"text":"#![deny(unused_parens)]","highlight_start":9,"highlight_end":22}],"label":null,"suggested_replacement":null,"suggestion_applicability":null,"expansion":null}],"children":[],"rendered":null},{"message":"remove these parentheses","code":null,"level":"help","spans":[{"file_name":"$DIR/unused_parens_json_suggestion.rs","byte_start":621,"byte_end":622,"line_start":17,"line_end":17,"column_start":14,"column_end":15,"is_primary":true,"text":[{"text":" let _a = (1 / (2 + 3));","highlight_start":14,"highlight_end":15}],"label":null,"suggested_replacement":"","suggestion_applicability":"MachineApplicable","expansion":null},{"file_name":"$DIR/unused_parens_json_suggestion.rs","byte_start":633,"byte_end":634,"line_start":17,"line_end":17,"column_start":26,"column_end":27,"is_primary":true,"text":[{"text":" let _a = (1 / (2 + 3));","highlight_start":26,"highlight_end":27}],"label":null,"suggested_replacement":"","suggestion_applicability":"MachineApplicable","expansion":null}],"children":[],"rendered":null}],"rendered":"error: unnecessary parentheses around assigned value
{"$message_type":"diagnostic","message":"unnecessary parentheses around assigned value","code":{"code":"unused_parens","explanation":null},"level":"error","spans":[{"file_name":"$DIR/unused_parens_json_suggestion.rs","byte_start":636,"byte_end":637,"line_start":17,"line_end":17,"column_start":14,"column_end":15,"is_primary":true,"text":[{"text":" let _a = (1 / (2 + 3));","highlight_start":14,"highlight_end":15}],"label":null,"suggested_replacement":null,"suggestion_applicability":null,"expansion":null},{"file_name":"$DIR/unused_parens_json_suggestion.rs","byte_start":648,"byte_end":649,"line_start":17,"line_end":17,"column_start":26,"column_end":27,"is_primary":true,"text":[{"text":" let _a = (1 / (2 + 3));","highlight_start":26,"highlight_end":27}],"label":null,"suggested_replacement":null,"suggestion_applicability":null,"expansion":null}],"children":[{"message":"the lint level is defined here","code":null,"level":"note","spans":[{"file_name":"$DIR/unused_parens_json_suggestion.rs","byte_start":439,"byte_end":452,"line_start":11,"line_end":11,"column_start":9,"column_end":22,"is_primary":true,"text":[{"text":"#![deny(unused_parens)]","highlight_start":9,"highlight_end":22}],"label":null,"suggested_replacement":null,"suggestion_applicability":null,"expansion":null}],"children":[],"rendered":null},{"message":"remove these parentheses","code":null,"level":"help","spans":[{"file_name":"$DIR/unused_parens_json_suggestion.rs","byte_start":636,"byte_end":637,"line_start":17,"line_end":17,"column_start":14,"column_end":15,"is_primary":true,"text":[{"text":" let _a = (1 / (2 + 3));","highlight_start":14,"highlight_end":15}],"label":null,"suggested_replacement":"","suggestion_applicability":"MachineApplicable","expansion":null},{"file_name":"$DIR/unused_parens_json_suggestion.rs","byte_start":648,"byte_end":649,"line_start":17,"line_end":17,"column_start":26,"column_end":27,"is_primary":true,"text":[{"text":" let _a = (1 / (2 + 3));","highlight_start":26,"highlight_end":27}],"label":null,"suggested_replacement":"","suggestion_applicability":"MachineApplicable","expansion":null}],"children":[],"rendered":null}],"rendered":"error: unnecessary parentheses around assigned value
--> $DIR/unused_parens_json_suggestion.rs:17:14
|
LL | let _a = (1 / (2 + 3));

2
tests/ui/lint/unused_parens_remove_json_suggestion.fixed
View File

@ -9,7 +9,7 @@
// test of the JSON error format.
#![deny(unused_parens)]
#![allow(unreachable_code)]
#![allow(unreachable_code, unused_braces)]
fn main() {

2
tests/ui/lint/unused_parens_remove_json_suggestion.rs
View File

@ -9,7 +9,7 @@
// test of the JSON error format.
#![deny(unused_parens)]
#![allow(unreachable_code)]
#![allow(unreachable_code, unused_braces)]
fn main() {

18
tests/ui/lint/unused_parens_remove_json_suggestion.stderr
View File

@ -1,4 +1,4 @@
{"$message_type":"diagnostic","message":"unnecessary parentheses around `if` condition","code":{"code":"unused_parens","explanation":null},"level":"error","spans":[{"file_name":"$DIR/unused_parens_remove_json_suggestion.rs","byte_start":525,"byte_end":526,"line_start":18,"line_end":18,"column_start":8,"column_end":9,"is_primary":true,"text":[{"text":" if (_b) {","highlight_start":8,"highlight_end":9}],"label":null,"suggested_replacement":null,"suggestion_applicability":null,"expansion":null},{"file_name":"$DIR/unused_parens_remove_json_suggestion.rs","byte_start":528,"byte_end":529,"line_start":18,"line_end":18,"column_start":11,"column_end":12,"is_primary":true,"text":[{"text":" if (_b) {","highlight_start":11,"highlight_end":12}],"label":null,"suggested_replacement":null,"suggestion_applicability":null,"expansion":null}],"children":[{"message":"the lint level is defined here","code":null,"level":"note","spans":[{"file_name":"$DIR/unused_parens_remove_json_suggestion.rs","byte_start":439,"byte_end":452,"line_start":11,"line_end":11,"column_start":9,"column_end":22,"is_primary":true,"text":[{"text":"#![deny(unused_parens)]","highlight_start":9,"highlight_end":22}],"label":null,"suggested_replacement":null,"suggestion_applicability":null,"expansion":null}],"children":[],"rendered":null},{"message":"remove these parentheses","code":null,"level":"help","spans":[{"file_name":"$DIR/unused_parens_remove_json_suggestion.rs","byte_start":525,"byte_end":526,"line_start":18,"line_end":18,"column_start":8,"column_end":9,"is_primary":true,"text":[{"text":" if (_b) {","highlight_start":8,"highlight_end":9}],"label":null,"suggested_replacement":"","suggestion_applicability":"MachineApplicable","expansion":null},{"file_name":"$DIR/unused_parens_remove_json_suggestion.rs","byte_start":528,"byte_end":529,"line_start":18,"line_end":18,"column_start":11,"column_end":12,"is_primary":true,"text":[{"text":" if (_b) {","highlight_start":11,"highlight_end":12}],"label":null,"suggested_replacement":"","suggestion_applicability":"MachineApplicable","expansion":null}],"children":[],"rendered":null}],"rendered":"error: unnecessary parentheses around `if` condition
{"$message_type":"diagnostic","message":"unnecessary parentheses around `if` condition","code":{"code":"unused_parens","explanation":null},"level":"error","spans":[{"file_name":"$DIR/unused_parens_remove_json_suggestion.rs","byte_start":540,"byte_end":541,"line_start":18,"line_end":18,"column_start":8,"column_end":9,"is_primary":true,"text":[{"text":" if (_b) {","highlight_start":8,"highlight_end":9}],"label":null,"suggested_replacement":null,"suggestion_applicability":null,"expansion":null},{"file_name":"$DIR/unused_parens_remove_json_suggestion.rs","byte_start":543,"byte_end":544,"line_start":18,"line_end":18,"column_start":11,"column_end":12,"is_primary":true,"text":[{"text":" if (_b) {","highlight_start":11,"highlight_end":12}],"label":null,"suggested_replacement":null,"suggestion_applicability":null,"expansion":null}],"children":[{"message":"the lint level is defined here","code":null,"level":"note","spans":[{"file_name":"$DIR/unused_parens_remove_json_suggestion.rs","byte_start":439,"byte_end":452,"line_start":11,"line_end":11,"column_start":9,"column_end":22,"is_primary":true,"text":[{"text":"#![deny(unused_parens)]","highlight_start":9,"highlight_end":22}],"label":null,"suggested_replacement":null,"suggestion_applicability":null,"expansion":null}],"children":[],"rendered":null},{"message":"remove these parentheses","code":null,"level":"help","spans":[{"file_name":"$DIR/unused_parens_remove_json_suggestion.rs","byte_start":540,"byte_end":541,"line_start":18,"line_end":18,"column_start":8,"column_end":9,"is_primary":true,"text":[{"text":" if (_b) {","highlight_start":8,"highlight_end":9}],"label":null,"suggested_replacement":"","suggestion_applicability":"MachineApplicable","expansion":null},{"file_name":"$DIR/unused_parens_remove_json_suggestion.rs","byte_start":543,"byte_end":544,"line_start":18,"line_end":18,"column_start":11,"column_end":12,"is_primary":true,"text":[{"text":" if (_b) {","highlight_start":11,"highlight_end":12}],"label":null,"suggested_replacement":"","suggestion_applicability":"MachineApplicable","expansion":null}],"children":[],"rendered":null}],"rendered":"error: unnecessary parentheses around `if` condition
--> $DIR/unused_parens_remove_json_suggestion.rs:18:8
|
LL | if (_b) {
@ -16,7 +16,7 @@ LL + if _b {
|
"}
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--> $DIR/unused_parens_remove_json_suggestion.rs:29:7
|
LL | if(c) {
@ -29,7 +29,7 @@ LL + if c {
|
"}
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--> $DIR/unused_parens_remove_json_suggestion.rs:33:8
|
LL | if (c){
@ -42,7 +42,7 @@ LL + if c {
|
"}
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--> $DIR/unused_parens_remove_json_suggestion.rs:37:11
|
LL | while (false && true){
@ -55,7 +55,7 @@ LL + while false && true {
|
"}
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--> $DIR/unused_parens_remove_json_suggestion.rs:38:12
|
LL | if (c) {
@ -68,7 +68,7 @@ LL + if c {
|
"}
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--> $DIR/unused_parens_remove_json_suggestion.rs:44:10
|
LL | while(true && false) {
@ -81,7 +81,7 @@ LL + while true && false {
|
"}
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--> $DIR/unused_parens_remove_json_suggestion.rs:45:18
|
LL | for _ in (0 .. 3){
@ -94,7 +94,7 @@ LL + for _ in 0 .. 3 {
|
"}
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--> $DIR/unused_parens_remove_json_suggestion.rs:50:14
|
LL | for _ in (0 .. 3) {
@ -107,7 +107,7 @@ LL + for _ in 0 .. 3 {
|
"}
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{"$message_type":"diagnostic","message":"unnecessary parentheses around `while` condition","code":{"code":"unused_parens","explanation":null},"level":"error","spans":[{"file_name":"$DIR/unused_parens_remove_json_suggestion.rs","byte_start":949,"byte_end":950,"line_start":51,"line_end":51,"column_start":15,"column_end":16,"is_primary":true,"text":[{"text":" while (true && false) {","highlight_start":15,"highlight_end":16}],"label":null,"suggested_replacement":null,"suggestion_applicability":null,"expansion":null},{"file_name":"$DIR/unused_parens_remove_json_suggestion.rs","byte_start":963,"byte_end":964,"line_start":51,"line_end":51,"column_start":29,"column_end":30,"is_primary":true,"text":[{"text":" while (true && false) {","highlight_start":29,"highlight_end":30}],"label":null,"suggested_replacement":null,"suggestion_applicability":null,"expansion":null}],"children":[{"message":"remove these parentheses","code":null,"level":"help","spans":[{"file_name":"$DIR/unused_parens_remove_json_suggestion.rs","byte_start":949,"byte_end":950,"line_start":51,"line_end":51,"column_start":15,"column_end":16,"is_primary":true,"text":[{"text":" while (true && false) {","highlight_start":15,"highlight_end":16}],"label":null,"suggested_replacement":"","suggestion_applicability":"MachineApplicable","expansion":null},{"file_name":"$DIR/unused_parens_remove_json_suggestion.rs","byte_start":963,"byte_end":964,"line_start":51,"line_end":51,"column_start":29,"column_end":30,"is_primary":true,"text":[{"text":" while (true && false) {","highlight_start":29,"highlight_end":30}],"label":null,"suggested_replacement":"","suggestion_applicability":"MachineApplicable","expansion":null}],"children":[],"rendered":null}],"rendered":"error: unnecessary parentheses around `while` condition
--> $DIR/unused_parens_remove_json_suggestion.rs:51:15
|
LL | while (true && false) {