Generate invalid rule code diagnostics

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

@@ -86,3 +86,12 @@ def f():
     # Multiple codes but none are used
     # ruff: disable[E741, F401, F841]
     print("hello")
+
+
+def f():
+    # Unknown rule codes
+    # ruff: disable[YF829]
+    # ruff: disable[F841, RQW320]
+    value = 0
+    # ruff: enable[F841, RQW320]
+    # ruff: enable[YF829]

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

@@ -6,8 +6,8 @@ source: crates/ruff_linter/src/rules/ruff/mod.rs
 +linter.preview = enabled
 
 --- Summary ---
-Removed: 14
-Added: 19
+Removed: 15
+Added: 23
 
 --- Removed ---
 E741 Ambiguous variable name: `I`
@@ -238,6 +238,27 @@ help: Remove assignment to unused variable `I`
 note: This is an unsafe fix and may change runtime behavior
 
 
+F841 [*] Local variable `value` is assigned to but never used
+  --> suppressions.py:95:5
+   |
+93 |     # ruff: disable[YF829]
+94 |     # ruff: disable[F841, RQW320]
+95 |     value = 0
+   |     ^^^^^
+96 |     # ruff: enable[F841, RQW320]
+97 |     # ruff: enable[YF829]
+   |
+help: Remove assignment to unused variable `value`
+92 |     # Unknown rule codes
+93 |     # ruff: disable[YF829]
+94 |     # ruff: disable[F841, RQW320]
+   -     value = 0
+95 +     pass
+96 |     # ruff: enable[F841, RQW320]
+97 |     # ruff: enable[YF829]
+note: This is an unsafe fix and may change runtime behavior
+
+
 
 --- Added ---
 RUF104 Unmatched suppression comment
@@ -370,6 +391,17 @@ RUF104 Unmatched suppression comment
    |
 
 
+RUF104 Unmatched suppression comment
+  --> suppressions.py:69:5
+   |
+67 |     # and the other should trigger an unused suppression diagnostic
+68 |     # ruff: disable[F841]
+69 |     # ruff: disable[F841]
+   |     ^^^^^^^^^^^^^^^^^^^^^
+70 |     foo = 0
+   |
+
+
 RUF100 [*] Unused suppression (unused: `F841`)
   --> suppressions.py:69:5
    |
@@ -389,17 +421,6 @@ help: Remove unused suppression
 71 | 
 
 
-RUF104 Unmatched suppression comment
-  --> suppressions.py:69:5
-   |
-67 |     # and the other should trigger an unused suppression diagnostic
-68 |     # ruff: disable[F841]
-69 |     # ruff: disable[F841]
-   |     ^^^^^^^^^^^^^^^^^^^^^
-70 |     foo = 0
-   |
-
-
 RUF104 Unmatched suppression comment
   --> suppressions.py:75:5
    |
@@ -509,6 +530,8 @@ help: Remove unused suppression
    -     # ruff: disable[E741, F401, F841]
 87 +     # ruff: disable[F401, F841]
 88 |     print("hello")
+89 | 
+90 | 
 
 
 RUF100 [*] Unused suppression (non-enabled: `F401`)
@@ -527,6 +550,8 @@ help: Remove unused suppression
    -     # ruff: disable[E741, F401, F841]
 87 +     # ruff: disable[E741, F841]
 88 |     print("hello")
+89 | 
+90 | 
 
 
 RUF100 [*] Unused suppression (unused: `F841`)
@@ -545,3 +570,79 @@ help: Remove unused suppression
    -     # ruff: disable[E741, F401, F841]
 87 +     # ruff: disable[E741, F401]
 88 |     print("hello")
+89 | 
+90 | 
+
+
+RUF102 [*] Invalid rule code in `# noqa`: YF829
+  --> suppressions.py:93:5
+   |
+91 | def f():
+92 |     # Unknown rule codes
+93 |     # ruff: disable[YF829]
+   |     ^^^^^^^^^^^^^^^^^^^^^^
+94 |     # ruff: disable[F841, RQW320]
+95 |     value = 0
+   |
+help: Remove the rule code
+90 | 
+91 | def f():
+92 |     # Unknown rule codes
+   -     # ruff: disable[YF829]
+93 |     # ruff: disable[F841, RQW320]
+94 |     value = 0
+95 |     # ruff: enable[F841, RQW320]
+
+
+RUF102 [*] Invalid rule code in `# noqa`: RQW320
+  --> suppressions.py:94:27
+   |
+92 |     # Unknown rule codes
+93 |     # ruff: disable[YF829]
+94 |     # ruff: disable[F841, RQW320]
+   |                           ^^^^^^
+95 |     value = 0
+96 |     # ruff: enable[F841, RQW320]
+   |
+help: Remove the rule code
+91 | def f():
+92 |     # Unknown rule codes
+93 |     # ruff: disable[YF829]
+   -     # ruff: disable[F841, RQW320]
+94 +     # ruff: disable[F841]
+95 |     value = 0
+96 |     # ruff: enable[F841, RQW320]
+97 |     # ruff: enable[YF829]
+
+
+RUF102 [*] Invalid rule code in `# noqa`: RQW320
+  --> suppressions.py:96:26
+   |
+94 |     # ruff: disable[F841, RQW320]
+95 |     value = 0
+96 |     # ruff: enable[F841, RQW320]
+   |                          ^^^^^^
+97 |     # ruff: enable[YF829]
+   |
+help: Remove the rule code
+93 |     # ruff: disable[YF829]
+94 |     # ruff: disable[F841, RQW320]
+95 |     value = 0
+   -     # ruff: enable[F841, RQW320]
+96 +     # ruff: enable[F841]
+97 |     # ruff: enable[YF829]
+
+
+RUF102 [*] Invalid rule code in `# noqa`: YF829
+  --> suppressions.py:97:5
+   |
+95 |     value = 0
+96 |     # ruff: enable[F841, RQW320]
+97 |     # ruff: enable[YF829]
+   |     ^^^^^^^^^^^^^^^^^^^^^
+   |
+help: Remove the rule code
+94 |     # ruff: disable[F841, RQW320]
+95 |     value = 0
+96 |     # ruff: enable[F841, RQW320]
+   -     # ruff: enable[YF829]

crates/ruff_linter/src/suppression.rs

@@ -1,6 +1,6 @@
 use compact_str::CompactString;
 use core::fmt;
-use ruff_db::diagnostic::Diagnostic;
+use ruff_db::diagnostic::{self, Diagnostic};
 use ruff_diagnostics::{Edit, Fix};
 use ruff_python_ast::token::{TokenKind, Tokens};
 use ruff_python_ast::whitespace::indentation;
@@ -19,8 +19,8 @@ use crate::codes::Rule;
 use crate::fix::edits::delete_comment;
 use crate::preview::is_range_suppressions_enabled;
 use crate::rules::ruff::rules::{
-    InvalidSuppressionComment, InvalidSuppressionCommentKind, UnmatchedSuppressionComment,
-    UnusedCodes, UnusedNOQA, UnusedNOQAKind,
+    InvalidRuleCode, InvalidSuppressionComment, InvalidSuppressionCommentKind,
+    UnmatchedSuppressionComment, UnusedCodes, UnusedNOQA, UnusedNOQAKind,
 };
 use crate::settings::LinterSettings;
 
@@ -217,6 +217,26 @@ impl Suppressions {
             }
         }
 
+        if context.is_rule_enabled(Rule::InvalidRuleCode) {
+            for suppression in self
+                .valid
+                .iter()
+                .filter(|suppression| Rule::from_code(&suppression.code).is_err())
+            {
+                for comment in &suppression.comments {
+                    let (range, edit) =
+                        Suppressions::delete_code_or_comment(locator, suppression, comment);
+                    let mut diagnostic = context.report_diagnostic(
+                        InvalidRuleCode {
+                            rule_code: suppression.code.to_string(),
+                        },
+                        range,
+                    );
+                    diagnostic.set_fix(Fix::safe_edit(edit));
+                }
+            }
+        }
+
         if context.is_rule_enabled(Rule::InvalidSuppressionComment) {
             // missing codes already handled above, report the rest as invalid comments
             for error in self
@@ -262,6 +282,7 @@ impl Suppressions {
             }
         }
     }
+
     fn delete_code_or_comment(
         locator: &Locator<'_>,
         suppression: &Suppression,