Enable the superfluous_disable_command when running the analyzer

CHANGELOG.md

@@ -5,12 +5,18 @@
 * Rewrite `SwiftLintPlugin` using `BUILD_WORKSPACE_DIRECTORY` without relying
   on the `--config` option.  
   [Garric Nahapetian](https://github.com/garricn)
-  
+
 * Introduce SwiftLintCommandPlugin.
   Rename SwiftLintBuildToolPlugin.
   Add Swift Package Manager installation instructions.  
   [garricn](https://github.com/garricn)
 
+* The `superfluous_disable_command` rule will now be enabled for the `analyze`
+  command, unless it has been disabled, and will warn about superfluous
+  disablement of analyzer rules.  
+  [Martin Redington](https://github.com/mildm8nnered)
+  [#4792](https://github.com/realm/SwiftLint/issues/4792)
+
 #### Experimental
 
 * None.

Source/SwiftLintCore/Models/Linter.swift

@@ -160,7 +160,7 @@ public struct Linter {
             if compilerArguments.isEmpty {
                 return !(rule is any AnalyzerRule)
             }
-            return rule is any AnalyzerRule
+            return rule is any AnalyzerRule || rule is SuperfluousDisableCommandRule
         }
         self.rules = rules
         self.isCollecting = rules.contains(where: { $0 is any AnyCollectingRule })

Tests/SwiftLintFrameworkTests/CommandTests.swift

@@ -1,6 +1,7 @@
 // swiftlint:disable file_length
 import Foundation
 import SourceKittenFramework
+@testable import SwiftLintBuiltInRules
 @testable import SwiftLintCore
 import XCTest
 
@@ -454,4 +455,29 @@ class CommandTests: SwiftLintTestCase {
             []
         )
     }
+
+    func testSuperfluousDisableCommandsEnabledForAnalyzer() {
+        let configuration = Configuration(
+            rulesMode: .default(disabled: [], optIn: [UnusedDeclarationRule.description.identifier])
+        )
+        let violations = violations(
+            Example("""
+            public class Foo {
+                // swiftlint:disable:next unused_declaration
+                func foo() -> Int {
+                    1
+                }
+                // swiftlint:disable:next unused_declaration
+                func bar() {
+                   foo()
+                }
+            }
+            """),
+            config: configuration,
+            requiresFileOnDisk: true
+        )
+        XCTAssertEqual(violations.count, 1)
+        XCTAssertEqual(violations.first?.ruleIdentifier, "superfluous_disable_command")
+        XCTAssertEqual(violations.first?.location.line, 3)
+    }
 }