Switch from using //~ERROR annotations with --error-format to error-pattern

Rajveer100 · Rajveer100 · commit af44e719fa16 · 2023-12-21T16:45:29.000+05:30
Resolves Issue #118752
diff --git a/src/tools/compiletest/src/errors.rs b/src/tools/compiletest/src/errors.rs
@@ -11,7 +11,7 @@ use once_cell::sync::Lazy;
 use regex::Regex;
 use tracing::*;
 
-#[derive(Clone, Debug, PartialEq)]
+#[derive(Copy, Clone, Debug, PartialEq)]
 pub enum ErrorKind {
     Help,
     Error,
diff --git a/src/tools/compiletest/src/runtest.rs b/src/tools/compiletest/src/runtest.rs
@@ -3976,23 +3976,29 @@ impl<'test> TestCx<'test> {
             proc_res.status,
             self.props.error_patterns
         );
-        if !explicit && self.config.compare_mode.is_none() {
-            let check_patterns = should_run == WillExecute::No
-                && (!self.props.error_patterns.is_empty()
-                    || !self.props.regex_error_patterns.is_empty());
 
+        let check_patterns = should_run == WillExecute::No
+            && (!self.props.error_patterns.is_empty()
+                || !self.props.regex_error_patterns.is_empty());
+        if !explicit && self.config.compare_mode.is_none() {
             let check_annotations = !check_patterns || !expected_errors.is_empty();
 
-            if check_patterns {
-                // "// error-pattern" comments
-                let output_to_check = self.get_output(&proc_res);
-                self.check_all_error_patterns(&output_to_check, &proc_res, pm);
-            }
-
             if check_annotations {
                 // "//~ERROR comments"
                 self.check_expected_errors(expected_errors, &proc_res);
             }
+        } else if explicit && !expected_errors.is_empty() {
+            let msg = format!(
+                "line {}: cannot combine `--error-format` with {} annotations; use `error-pattern` instead",
+                expected_errors[0].line_num,
+                expected_errors[0].kind.unwrap_or(ErrorKind::Error),
+            );
+            self.fatal(&msg);
+        }
+        if check_patterns {
+            // "// error-pattern" comments
+            let output_to_check = self.get_output(&proc_res);
+            self.check_all_error_patterns(&output_to_check, &proc_res, pm);
         }
 
         if self.props.run_rustfix && self.config.compare_mode.is_none() {
diff --git a/tests/rustdoc-ui/issues/issue-81662-shortness.rs b/tests/rustdoc-ui/issues/issue-81662-shortness.rs
@@ -1,12 +1,13 @@
 // compile-flags:--test --error-format=short
+// check-stdout
+// error-pattern:cannot find function `foo` in this scope
 // normalize-stdout-test: "tests/rustdoc-ui/issues" -> "$$DIR"
 // normalize-stdout-test "finished in \d+\.\d+s" -> "finished in $$TIME"
 // failure-status: 101
 
 /// ```rust
 /// foo();
 /// ```
-//~^^ ERROR cannot find function `foo` in this scope
 fn foo() {
     println!("Hello, world!");
 }
diff --git a/tests/rustdoc-ui/issues/issue-81662-shortness.stdout b/tests/rustdoc-ui/issues/issue-81662-shortness.stdout
@@ -1,16 +1,16 @@
 
 running 1 test
-test $DIR/issue-81662-shortness.rs - foo (line 6) ... FAILED
+test $DIR/issue-81662-shortness.rs - foo (line 8) ... FAILED
 
 failures:
 
----- $DIR/issue-81662-shortness.rs - foo (line 6) stdout ----
-$DIR/issue-81662-shortness.rs:7:1: error[E0425]: cannot find function `foo` in this scope
+---- $DIR/issue-81662-shortness.rs - foo (line 8) stdout ----
+$DIR/issue-81662-shortness.rs:9:1: error[E0425]: cannot find function `foo` in this scope
 error: aborting due to 1 previous error
 Couldn't compile the test.
 
 failures:
-    $DIR/issue-81662-shortness.rs - foo (line 6)
+    $DIR/issue-81662-shortness.rs - foo (line 8)
 
 test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in $TIME
 
diff --git a/tests/ui/annotate-snippet/missing-type.rs b/tests/ui/annotate-snippet/missing-type.rs
@@ -1,5 +1,6 @@
 // compile-flags: --error-format human-annotate-rs -Z unstable-options
+// error-pattern:cannot find type `Iter` in this scope
 
 pub fn main() {
-    let x: Iter; //~ ERROR cannot find type `Iter` in this scope
+    let x: Iter;
 }
diff --git a/tests/ui/annotate-snippet/missing-type.stderr b/tests/ui/annotate-snippet/missing-type.stderr
@@ -1,5 +1,5 @@
 error[E0412]: cannot find type `Iter` in this scope
-  --> $DIR/missing-type.rs:4:12
+  --> $DIR/missing-type.rs:5:12
    |
 LL |     let x: Iter;
    |            ^^^^ not found in this scope
diff --git a/tests/ui/annotate-snippet/multispan.rs b/tests/ui/annotate-snippet/multispan.rs
@@ -1,4 +1,5 @@
 // aux-build:multispan.rs
+// error-pattern:hello to you, too!
 // compile-flags: --error-format human-annotate-rs -Z unstable-options
 
 #![feature(proc_macro_hygiene)]
@@ -12,17 +13,17 @@ fn main() {
     hello!();
 
     // Exactly one 'hi'.
-    hello!(hi); //~ ERROR hello to you, too!
+    hello!(hi);
 
     // Now two, back to back.
-    hello!(hi hi); //~ ERROR hello to you, too!
+    hello!(hi hi);
 
     // Now three, back to back.
-    hello!(hi hi hi); //~ ERROR hello to you, too!
+    hello!(hi hi hi);
 
     // Now several, with spacing.
-    hello!(hi hey hi yo hi beep beep hi hi); //~ ERROR hello to you, too!
-    hello!(hi there, hi how are you? hi... hi.); //~ ERROR hello to you, too!
-    hello!(whoah. hi di hi di ho); //~ ERROR hello to you, too!
-    hello!(hi good hi and good bye); //~ ERROR hello to you, too!
+    hello!(hi hey hi yo hi beep beep hi hi);
+    hello!(hi there, hi how are you? hi... hi.);
+    hello!(whoah. hi di hi di ho);
+    hello!(hi good hi and good bye);
 }
diff --git a/tests/ui/annotate-snippet/multispan.stderr b/tests/ui/annotate-snippet/multispan.stderr
@@ -1,41 +1,41 @@
 error: hello to you, too!
-  --> $DIR/multispan.rs:15:5
+  --> $DIR/multispan.rs:16:5
    |
 LL |     hello!(hi);
    |     ^^^^^^^^^^
    |
 error: hello to you, too!
-  --> $DIR/multispan.rs:18:5
+  --> $DIR/multispan.rs:19:5
    |
 LL |     hello!(hi hi);
    |     ^^^^^^^^^^^^^
    |
 error: hello to you, too!
-  --> $DIR/multispan.rs:21:5
+  --> $DIR/multispan.rs:22:5
    |
 LL |     hello!(hi hi hi);
    |     ^^^^^^^^^^^^^^^^
    |
 error: hello to you, too!
-  --> $DIR/multispan.rs:24:5
+  --> $DIR/multispan.rs:25:5
    |
 LL |     hello!(hi hey hi yo hi beep beep hi hi);
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    |
 error: hello to you, too!
-  --> $DIR/multispan.rs:25:5
+  --> $DIR/multispan.rs:26:5
    |
 LL |     hello!(hi there, hi how are you? hi... hi.);
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    |
 error: hello to you, too!
-  --> $DIR/multispan.rs:26:5
+  --> $DIR/multispan.rs:27:5
    |
 LL |     hello!(whoah. hi di hi di ho);
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    |
 error: hello to you, too!
-  --> $DIR/multispan.rs:27:5
+  --> $DIR/multispan.rs:28:5
    |
 LL |     hello!(hi good hi and good bye);
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
diff --git a/tests/ui/diagnostic-width/flag-json.rs b/tests/ui/diagnostic-width/flag-json.rs
@@ -1,9 +1,9 @@
 // compile-flags: --diagnostic-width=20 --error-format=json
+// error-pattern:expected `()`, found integer
 
 // This test checks that `-Z output-width` effects the JSON error output by restricting it to an
 // arbitrarily low value so that the effect is visible.
 
 fn main() {
     let _: () = 42;
-    //~^ ERROR arguments to this function are incorrect
 }
diff --git a/tests/ui/diagnostic-width/flag-json.stderr b/tests/ui/diagnostic-width/flag-json.stderr
@@ -24,8 +24,8 @@ This error occurs when an expression was used in a place where the compiler
 expected an expression of a different type. It can occur in several cases, the
 most common being when calling a function and passing an argument which has a
 different type than the matching type in the function declaration.
-"},"level":"error","spans":[{"file_name":"$DIR/flag-json.rs","byte_start":243,"byte_end":245,"line_start":7,"line_end":7,"column_start":17,"column_end":19,"is_primary":true,"text":[{"text":"    let _: () = 42;","highlight_start":17,"highlight_end":19}],"label":"expected `()`, found integer","suggested_replacement":null,"suggestion_applicability":null,"expansion":null},{"file_name":"$DIR/flag-json.rs","byte_start":238,"byte_end":240,"line_start":7,"line_end":7,"column_start":12,"column_end":14,"is_primary":false,"text":[{"text":"    let _: () = 42;","highlight_start":12,"highlight_end":14}],"label":"expected due to this","suggested_replacement":null,"suggestion_applicability":null,"expansion":null}],"children":[],"rendered":"error[E0308]: mismatched types
-  --> $DIR/flag-json.rs:7:17
+"},"level":"error","spans":[{"file_name":"$DIR/flag-json.rs","byte_start":289,"byte_end":291,"line_start":8,"line_end":8,"column_start":17,"column_end":19,"is_primary":true,"text":[{"text":"    let _: () = 42;","highlight_start":17,"highlight_end":19}],"label":"expected `()`, found integer","suggested_replacement":null,"suggestion_applicability":null,"expansion":null},{"file_name":"$DIR/flag-json.rs","byte_start":284,"byte_end":286,"line_start":8,"line_end":8,"column_start":12,"column_end":14,"is_primary":false,"text":[{"text":"    let _: () = 42;","highlight_start":12,"highlight_end":14}],"label":"expected due to this","suggested_replacement":null,"suggestion_applicability":null,"expansion":null}],"children":[],"rendered":"error[E0308]: mismatched types
+  --> $DIR/flag-json.rs:8:17
    |
 LL | ..._: () = 42;
    |       --   ^^ expected `()`, found integer
diff --git a/tests/ui/lint/unused_parens_json_suggestion.fixed b/tests/ui/lint/unused_parens_json_suggestion.fixed
@@ -1,4 +1,5 @@
 // compile-flags: --error-format json
+// error-pattern:unnecessary parentheses
 // run-rustfix
 
 // The output for humans should just highlight the whole span without showing
@@ -13,7 +14,7 @@
 fn main() {
     // We want to suggest the properly-balanced expression `1 / (2 + 3)`, not
     // the malformed `1 / (2 + 3`
-    let _a = 1 / (2 + 3); //~ERROR unnecessary parentheses
+    let _a = 1 / (2 + 3);
     f();
 }
 
diff --git a/tests/ui/lint/unused_parens_json_suggestion.rs b/tests/ui/lint/unused_parens_json_suggestion.rs
@@ -1,4 +1,5 @@
 // compile-flags: --error-format json
+// error-pattern:unnecessary parentheses
 // run-rustfix
 
 // The output for humans should just highlight the whole span without showing
@@ -13,7 +14,7 @@
 fn main() {
     // We want to suggest the properly-balanced expression `1 / (2 + 3)`, not
     // the malformed `1 / (2 + 3`
-    let _a = (1 / (2 + 3)); //~ERROR unnecessary parentheses
+    let _a = (1 / (2 + 3));
     f();
 }
 
diff --git a/tests/ui/lint/unused_parens_json_suggestion.stderr b/tests/ui/lint/unused_parens_json_suggestion.stderr
@@ -1,11 +1,11 @@
-{"$message_type":"diagnostic","message":"unnecessary parentheses around assigned value","code":{"code":"unused_parens","explanation":null},"level":"error","spans":[{"file_name":"$DIR/unused_parens_json_suggestion.rs","byte_start":577,"byte_end":578,"line_start":16,"line_end":16,"column_start":14,"column_end":15,"is_primary":true,"text":[{"text":"    let _a = (1 / (2 + 3));
-  --> $DIR/unused_parens_json_suggestion.rs:16:14
+{"$message_type":"diagnostic","message":"unnecessary parentheses around assigned value","code":{"code":"unused_parens","explanation":null},"level":"error","spans":[{"file_name":"$DIR/unused_parens_json_suggestion.rs","byte_start":618,"byte_end":619,"line_start":17,"line_end":17,"column_start":14,"column_end":15,"is_primary":true,"text":[{"text":"    let _a = (1 / (2 + 3));","highlight_start":14,"highlight_end":15}],"label":null,"suggested_replacement":null,"suggestion_applicability":null,"expansion":null},{"file_name":"$DIR/unused_parens_json_suggestion.rs","byte_start":630,"byte_end":631,"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":"$DIR/unused_parens_json_suggestion.rs","byte_start":436,"byte_end":449,"line_start":11,"line_end":11,"column_start":9,"column_end":22,"is_primary":true,"text":[{"text":"#![deny(unused_parens)]","highlight_start":9,"highlight_end":22}],"label":null,"suggested_replacement":null,"suggestion_applicability":null,"expansion":null}],"children":[],"rendered":null},{"message":"remove these parentheses","code":null,"level":"help","spans":[{"file_name":"$DIR/unused_parens_json_suggestion.rs","byte_start":618,"byte_end":619,"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":630,"byte_end":631,"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));
    |              ^           ^
    |
 note: the lint level is defined here
-  --> $DIR/unused_parens_json_suggestion.rs:10:9
+  --> $DIR/unused_parens_json_suggestion.rs:11:9
    |
 LL | #![deny(unused_parens)]
    |         ^^^^^^^^^^^^^
diff --git a/tests/ui/lint/unused_parens_remove_json_suggestion.fixed b/tests/ui/lint/unused_parens_remove_json_suggestion.fixed
@@ -1,4 +1,5 @@
 // compile-flags: --error-format json
+// error-pattern:unnecessary parentheses
 // run-rustfix
 
 // The output for humans should just highlight the whole span without showing
@@ -14,7 +15,7 @@ fn main() {
 
     let _b = false;
 
-    if _b { //~ ERROR unnecessary parentheses
+    if _b {
         println!("hello");
     }
 
@@ -25,29 +26,29 @@ fn main() {
 fn f() -> bool {
     let c = false;
 
-    if c { //~ ERROR unnecessary parentheses
+    if c {
         println!("next");
     }
 
-    if c { //~ ERROR unnecessary parentheses
+    if c {
         println!("prev");
     }
 
     while false && true {
-        if c { //~ ERROR unnecessary parentheses
+        if c {
             println!("norm");
         }
 
     }
 
-    while true && false { //~ ERROR unnecessary parentheses
-        for _ in 0 .. 3 { //~ ERROR unnecessary parentheses
+    while true && false {
+        for _ in 0 .. 3 {
             println!("e~")
         }
     }
 
-    for _ in 0 .. 3 { //~ ERROR unnecessary parentheses
-        while true && false { //~ ERROR unnecessary parentheses
+    for _ in 0 .. 3 {
+        while true && false {
             println!("e~")
         }
     }
diff --git a/tests/ui/lint/unused_parens_remove_json_suggestion.rs b/tests/ui/lint/unused_parens_remove_json_suggestion.rs
@@ -1,4 +1,5 @@
 // compile-flags: --error-format json
+// error-pattern:unnecessary parentheses
 // run-rustfix
 
 // The output for humans should just highlight the whole span without showing
@@ -14,7 +15,7 @@ fn main() {
 
     let _b = false;
 
-    if (_b) { //~ ERROR unnecessary parentheses
+    if (_b) {
         println!("hello");
     }
 
@@ -25,29 +26,29 @@ fn main() {
 fn f() -> bool {
     let c = false;
 
-    if(c) { //~ ERROR unnecessary parentheses
+    if(c) {
         println!("next");
     }
 
-    if (c){ //~ ERROR unnecessary parentheses
+    if (c){
         println!("prev");
     }
 
     while (false && true){
-        if (c) { //~ ERROR unnecessary parentheses
+        if (c) {
             println!("norm");
         }
 
     }
 
-    while(true && false) { //~ ERROR unnecessary parentheses
-        for _ in (0 .. 3){ //~ ERROR unnecessary parentheses
+    while(true && false) {
+        for _ in (0 .. 3){
             println!("e~")
         }
     }
 
-    for _ in (0 .. 3) { //~ ERROR unnecessary parentheses
-        while (true && false) { //~ ERROR unnecessary parentheses
+    for _ in (0 .. 3) {
+        while (true && false) {
             println!("e~")
         }
     }
diff --git a/tests/ui/lint/unused_parens_remove_json_suggestion.stderr b/tests/ui/lint/unused_parens_remove_json_suggestion.stderr
diff --git a/tests/ui/proc-macro/inner-attrs.rs b/tests/ui/proc-macro/inner-attrs.rs
diff --git a/tests/ui/proc-macro/inner-attrs.stderr b/tests/ui/proc-macro/inner-attrs.stderr
diff --git a/tests/ui/proc-macro/inner-attrs.stdout b/tests/ui/proc-macro/inner-attrs.stdout
diff --git a/tests/ui/proc-macro/issue-75930-derive-cfg.rs b/tests/ui/proc-macro/issue-75930-derive-cfg.rs
diff --git a/tests/ui/proc-macro/issue-75930-derive-cfg.stderr b/tests/ui/proc-macro/issue-75930-derive-cfg.stderr
diff --git a/tests/ui/proc-macro/issue-75930-derive-cfg.stdout b/tests/ui/proc-macro/issue-75930-derive-cfg.stdout

Original file line number	Diff line number	Diff line change
`@@ -1,5 +1,6 @@`
`1`	`1`	`// compile-flags: --error-format human-annotate-rs -Z unstable-options`
	`2`	+// error-pattern:cannot find type `Iter` in this scope
`2`	`3`
`3`	`4`	`pub fn main() {`
`4`		- let x: Iter; //~ ERROR cannot find type `Iter` in this scope
	`5`	`+ let x: Iter;`
`5`	`6`	`}`
Original file line number	Diff line number	Diff line change
`@@ -1,5 +1,5 @@`
`1`	`1`	error[E0412]: cannot find type `Iter` in this scope
`2`		`- --> $DIR/missing-type.rs:4:12`
	`2`	`+ --> $DIR/missing-type.rs:5:12`
`3`	`3`	`\|`
`4`	`4`	`LL \| let x: Iter;`
`5`	`5`	`\| ^^^^ not found in this scope`
Original file line number	Diff line number	Diff line change
`@@ -1,41 +1,41 @@`
`1`	`1`	`error: hello to you, too!`
`2`		`- --> $DIR/multispan.rs:15:5`
	`2`	`+ --> $DIR/multispan.rs:16:5`
`3`	`3`	`\|`
`4`	`4`	`LL \| hello!(hi);`
`5`	`5`	`\| ^^^^^^^^^^`
`6`	`6`	`\|`
`7`	`7`	`error: hello to you, too!`
`8`		`- --> $DIR/multispan.rs:18:5`
	`8`	`+ --> $DIR/multispan.rs:19:5`
`9`	`9`	`\|`
`10`	`10`	`LL \| hello!(hi hi);`
`11`	`11`	`\| ^^^^^^^^^^^^^`
`12`	`12`	`\|`
`13`	`13`	`error: hello to you, too!`
`14`		`- --> $DIR/multispan.rs:21:5`
	`14`	`+ --> $DIR/multispan.rs:22:5`
`15`	`15`	`\|`
`16`	`16`	`LL \| hello!(hi hi hi);`
`17`	`17`	`\| ^^^^^^^^^^^^^^^^`
`18`	`18`	`\|`
`19`	`19`	`error: hello to you, too!`
`20`		`- --> $DIR/multispan.rs:24:5`
	`20`	`+ --> $DIR/multispan.rs:25:5`
`21`	`21`	`\|`
`22`	`22`	`LL \| hello!(hi hey hi yo hi beep beep hi hi);`
`23`	`23`	`\| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^`
`24`	`24`	`\|`
`25`	`25`	`error: hello to you, too!`
`26`		`- --> $DIR/multispan.rs:25:5`
	`26`	`+ --> $DIR/multispan.rs:26:5`
`27`	`27`	`\|`
`28`	`28`	`LL \| hello!(hi there, hi how are you? hi... hi.);`
`29`	`29`	`\| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^`
`30`	`30`	`\|`
`31`	`31`	`error: hello to you, too!`
`32`		`- --> $DIR/multispan.rs:26:5`
	`32`	`+ --> $DIR/multispan.rs:27:5`
`33`	`33`	`\|`
`34`	`34`	`LL \| hello!(whoah. hi di hi di ho);`
`35`	`35`	`\| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^`
`36`	`36`	`\|`
`37`	`37`	`error: hello to you, too!`
`38`		`- --> $DIR/multispan.rs:27:5`
	`38`	`+ --> $DIR/multispan.rs:28:5`
`39`	`39`	`\|`
`40`	`40`	`LL \| hello!(hi good hi and good bye);`
`41`	`41`	`\| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^`
Original file line number	Diff line number	Diff line change
`@@ -1,9 +1,9 @@`
`1`	`1`	`// compile-flags: --diagnostic-width=20 --error-format=json`
	`2`	+// error-pattern:expected `()`, found integer
`2`	`3`
`3`	`4`	// This test checks that `-Z output-width` effects the JSON error output by restricting it to an
`4`	`5`	`// arbitrarily low value so that the effect is visible.`
`5`	`6`
`6`	`7`	`fn main() {`
`7`	`8`	`let _: () = 42;`
`8`		`- //~^ ERROR arguments to this function are incorrect`
`9`	`9`	`}`
Original file line number	Diff line number	Diff line change
`@@ -1,11 +1,11 @@`
`1`		`-{"$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":577,"byte_end":578,"line_start":16,"line_end":16,"column_start":14,"column_end":15,"is_primary":true,"text":[{"text":" let _a = (1 / (2 + 3));`
`2`		`- --> $DIR/unused_parens_json_suggestion.rs:16:14`
	`1`	+{"$message_type":"diagnostic","message":"unnecessary parentheses around assigned value","code":{"code":"unused_parens","explanation":null},"level":"error","spans":[{"file_name":"$DIR/unused_parens_json_suggestion.rs","byte_start":618,"byte_end":619,"line_start":17,"line_end":17,"column_start":14,"column_end":15,"is_primary":true,"text":[{"text":" let _a = (1 / (2 + 3));","highlight_start":14,"highlight_end":15}],"label":null,"suggested_replacement":null,"suggestion_applicability":null,"expansion":null},{"file_name":"$DIR/unused_parens_json_suggestion.rs","byte_start":630,"byte_end":631,"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":"$DIR/unused_parens_json_suggestion.rs","byte_start":436,"byte_end":449,"line_start":11,"line_end":11,"column_start":9,"column_end":22,"is_primary":true,"text":[{"text":"#![deny(unused_parens)]","highlight_start":9,"highlight_end":22}],"label":null,"suggested_replacement":null,"suggestion_applicability":null,"expansion":null}],"children":[],"rendered":null},{"message":"remove these parentheses","code":null,"level":"help","spans":[{"file_name":"$DIR/unused_parens_json_suggestion.rs","byte_start":618,"byte_end":619,"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":630,"byte_end":631,"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
	`2`	`+ --> $DIR/unused_parens_json_suggestion.rs:17:14`
`3`	`3`	`\|`
`4`	`4`	`LL \| let _a = (1 / (2 + 3));`
`5`	`5`	`\| ^ ^`
`6`	`6`	`\|`
`7`	`7`	`note: the lint level is defined here`
`8`		`- --> $DIR/unused_parens_json_suggestion.rs:10:9`
	`8`	`+ --> $DIR/unused_parens_json_suggestion.rs:11:9`
`9`	`9`	`\|`
`10`	`10`	`LL \| #![deny(unused_parens)]`
`11`	`11`	`\| ^^^^^^^^^^^^^`
Original file line number	Diff line number	Diff line change
`@@ -1,4 +1,5 @@`
`1`	`1`	`// compile-flags: --error-format json`
	`2`	`+// error-pattern:unnecessary parentheses`
`2`	`3`	`// run-rustfix`
`3`	`4`
`4`	`5`	`// The output for humans should just highlight the whole span without showing`
`@@ -14,7 +15,7 @@ fn main() {`
`14`	`15`
`15`	`16`	`let _b = false;`
`16`	`17`
`17`		`- if _b { //~ ERROR unnecessary parentheses`
	`18`	`+ if _b {`
`18`	`19`	`println!("hello");`
`19`	`20`	`}`
`20`	`21`
`@@ -25,29 +26,29 @@ fn main() {`
`25`	`26`	`fn f() -> bool {`
`26`	`27`	`let c = false;`
`27`	`28`
`28`		`- if c { //~ ERROR unnecessary parentheses`
	`29`	`+ if c {`
`29`	`30`	`println!("next");`
`30`	`31`	`}`
`31`	`32`
`32`		`- if c { //~ ERROR unnecessary parentheses`
	`33`	`+ if c {`
`33`	`34`	`println!("prev");`
`34`	`35`	`}`
`35`	`36`
`36`	`37`	`while false && true {`
`37`		`- if c { //~ ERROR unnecessary parentheses`
	`38`	`+ if c {`
`38`	`39`	`println!("norm");`
`39`	`40`	`}`
`40`	`41`
`41`	`42`	`}`
`42`	`43`
`43`		`- while true && false { //~ ERROR unnecessary parentheses`
`44`		`- for _ in 0 .. 3 { //~ ERROR unnecessary parentheses`
	`44`	`+ while true && false {`
	`45`	`+ for _ in 0 .. 3 {`
`45`	`46`	`println!("e~")`
`46`	`47`	`}`
`47`	`48`	`}`
`48`	`49`
`49`		`- for _ in 0 .. 3 { //~ ERROR unnecessary parentheses`
`50`		`- while true && false { //~ ERROR unnecessary parentheses`
	`50`	`+ for _ in 0 .. 3 {`
	`51`	`+ while true && false {`
`51`	`52`	`println!("e~")`
`52`	`53`	`}`
`53`	`54`	`}`