[ruff] - extend comment deletions for unused-noqa (RUF100) (#13105)

## Summary

Extends deletions for RUF100, deleting trailing text from noqa
directives, while preserving upcoming comments on the same line if any.

In cases where it deletes a comment up to another comment on the same
line, the whitespace between them is now shown to be in the autofix in
the diagnostic as well. Leading whitespace before the removed comment is
not, though.

Fixes #12251 

## Test Plan

`cargo test`

Author: diceroll123

crates/ruff_linter/resources/test/fixtures/ruff/RUF100_5.py

@@ -9,3 +9,13 @@
 
 
 #import os  # noqa: E501
+
+def f():
+    data = 1
+    # line below should autofix to `return data  # fmt: skip`
+    return data  # noqa: RET504 # fmt: skip
+
+def f():
+    data = 1
+    # line below should autofix to `return data`
+    return data  # noqa: RET504 - intentional incorrect noqa, will be removed

crates/ruff_linter/src/checkers/noqa.rs

@@ -118,10 +118,10 @@ pub(crate) fn check_noqa(
             match &line.directive {
                 Directive::All(directive) => {
                     if line.matches.is_empty() {
+                        let edit = delete_comment(directive.range(), locator);
                         let mut diagnostic =
                             Diagnostic::new(UnusedNOQA { codes: None }, directive.range());
-                        diagnostic
-                            .set_fix(Fix::safe_edit(delete_comment(directive.range(), locator)));
+                        diagnostic.set_fix(Fix::safe_edit(edit));
 
                         diagnostics.push(diagnostic);
                     }
@@ -172,6 +172,14 @@ pub(crate) fn check_noqa(
                         && unknown_codes.is_empty()
                         && unmatched_codes.is_empty())
                     {
+                        let edit = if valid_codes.is_empty() {
+                            delete_comment(directive.range(), locator)
+                        } else {
+                            Edit::range_replacement(
+                                format!("# noqa: {}", valid_codes.join(", ")),
+                                directive.range(),
+                            )
+                        };
                         let mut diagnostic = Diagnostic::new(
                             UnusedNOQA {
                                 codes: Some(UnusedCodes {
@@ -195,17 +203,7 @@ pub(crate) fn check_noqa(
                             },
                             directive.range(),
                         );
-                        if valid_codes.is_empty() {
-                            diagnostic.set_fix(Fix::safe_edit(delete_comment(
-                                directive.range(),
-                                locator,
-                            )));
-                        } else {
-                            diagnostic.set_fix(Fix::safe_edit(Edit::range_replacement(
-                                format!("# noqa: {}", valid_codes.join(", ")),
-                                directive.range(),
-                            )));
-                        }
+                        diagnostic.set_fix(Fix::safe_edit(edit));
                         diagnostics.push(diagnostic);
                     }
                 }

crates/ruff_linter/src/fix/edits.rs

@@ -99,11 +99,8 @@ pub(crate) fn delete_comment(range: TextRange, locator: &Locator) -> Edit {
     }
     // Ex) `x = 1  # noqa here`
     else {
-        // Replace `# noqa here` with `# here`.
-        Edit::range_replacement(
-            "# ".to_string(),
-            TextRange::new(range.start(), range.end() + trailing_space_len),
-        )
+        // Remove `# noqa here` and whitespace
+        Edit::deletion(range.start() - leading_space_len, line_range.end())
     }
 }
 

crates/ruff_linter/src/rules/ruff/snapshots/ruff_linter__rules__ruff__tests__ruf100_3.snap

@@ -112,7 +112,7 @@ RUF100_3.py:6:10: RUF100 [*] Unused blanket `noqa` directive
 4 4 | print()  # noqa # comment
 5 5 | print()  # noqa  # comment
 6   |-print()  # noqa comment
-  6 |+print()  # comment
+  6 |+print()
 7 7 | print()  # noqa  comment
 8 8 | print(a)  # noqa
 9 9 | print(a)  # noqa # comment
@@ -133,7 +133,7 @@ RUF100_3.py:7:10: RUF100 [*] Unused blanket `noqa` directive
 5 5 | print()  # noqa  # comment
 6 6 | print()  # noqa comment
 7   |-print()  # noqa  comment
-  7 |+print()  # comment
+  7 |+print()
 8 8 | print(a)  # noqa
 9 9 | print(a)  # noqa # comment
 10 10 | print(a)  # noqa  # comment
@@ -257,7 +257,7 @@ RUF100_3.py:19:10: RUF100 [*] Unused `noqa` directive (unused: `E501`, `F821`)
 17 17 | print()  # noqa: E501, F821 # comment
 18 18 | print()  # noqa: E501, F821  # comment
 19    |-print()  # noqa: E501, F821 comment
-   19 |+print()  # comment
+   19 |+print()
 20 20 | print()  # noqa: E501, F821  comment
 21 21 | print(a)  # noqa: E501, F821
 22 22 | print(a)  # noqa: E501, F821 # comment
@@ -278,7 +278,7 @@ RUF100_3.py:20:10: RUF100 [*] Unused `noqa` directive (unused: `E501`, `F821`)
 18 18 | print()  # noqa: E501, F821  # comment
 19 19 | print()  # noqa: E501, F821 comment
 20    |-print()  # noqa: E501, F821  comment
-   20 |+print()  # comment
+   20 |+print()
 21 21 | print(a)  # noqa: E501, F821
 22 22 | print(a)  # noqa: E501, F821 # comment
 23 23 | print(a)  # noqa: E501, F821  # comment
@@ -428,5 +428,3 @@ RUF100_3.py:28:39: RUF100 [*] Unused `noqa` directive (unused: `E501`)
 27 27 | print(a)  # comment with unicode µ    # noqa: E501
 28    |-print(a)  # comment with unicode µ    # noqa: E501, F821
    28 |+print(a)  # comment with unicode µ    # noqa: F821
-
-

crates/ruff_linter/src/rules/ruff/snapshots/ruff_linter__rules__ruff__tests__ruf100_5.snap

@@ -24,6 +24,8 @@ RUF100_5.py:11:1: ERA001 Found commented-out code
    |
 11 | #import os  # noqa: E501
    | ^^^^^^^^^^^^^^^^^^^^^^^^ ERA001
+12 | 
+13 | def f():
    |
    = help: Remove commented-out code
 
@@ -32,11 +34,16 @@ RUF100_5.py:11:1: ERA001 Found commented-out code
 9  9  | 
 10 10 | 
 11    |-#import os  # noqa: E501
+12 11 | 
+13 12 | def f():
+14 13 |     data = 1
 
 RUF100_5.py:11:13: RUF100 [*] Unused `noqa` directive (unused: `E501`)
    |
 11 | #import os  # noqa: E501
    |             ^^^^^^^^^^^^ RUF100
+12 | 
+13 | def f():
    |
    = help: Remove unused `noqa` directive
 
@@ -46,5 +53,43 @@ RUF100_5.py:11:13: RUF100 [*] Unused `noqa` directive (unused: `E501`)
 10 10 | 
 11    |-#import os  # noqa: E501
    11 |+#import os
+12 12 | 
+13 13 | def f():
+14 14 |     data = 1
 
+RUF100_5.py:16:18: RUF100 [*] Unused `noqa` directive (non-enabled: `RET504`)
+   |
+14 |     data = 1
+15 |     # line below should autofix to `return data  # fmt: skip`
+16 |     return data  # noqa: RET504 # fmt: skip
+   |                  ^^^^^^^^^^^^^^ RUF100
+17 | 
+18 | def f():
+   |
+   = help: Remove unused `noqa` directive
+
+ℹ Safe fix
+13 13 | def f():
+14 14 |     data = 1
+15 15 |     # line below should autofix to `return data  # fmt: skip`
+16    |-    return data  # noqa: RET504 # fmt: skip
+   16 |+    return data  # fmt: skip
+17 17 | 
+18 18 | def f():
+19 19 |     data = 1
 
+RUF100_5.py:21:18: RUF100 [*] Unused `noqa` directive (non-enabled: `RET504`)
+   |
+19 |     data = 1
+20 |     # line below should autofix to `return data`
+21 |     return data  # noqa: RET504 - intentional incorrect noqa, will be removed
+   |                  ^^^^^^^^^^^^^^ RUF100
+   |
+   = help: Remove unused `noqa` directive
+
+ℹ Safe fix
+18 18 | def f():
+19 19 |     data = 1
+20 20 |     # line below should autofix to `return data`
+21    |-    return data  # noqa: RET504 - intentional incorrect noqa, will be removed
+   21 |+    return data