From 03f13e5bb7b71a71c2382661a5f4071c6571cf58 Mon Sep 17 00:00:00 2001
From: Keith Smiley <keithbsmiley@gmail.com>
Date: Thu, 3 Dec 2020 11:00:53 -0800
Subject: [PATCH] Remove @IBOutlet and @IBInspectable from
 UnusedDeclarationRule (#3432)

The original implementation wasn't tested so it regressed.

https://github.com/realm/SwiftLint/pull/3184
---
 CHANGELOG.md                                  |  4 ++-
 .../Rules/Lint/UnusedDeclarationRule.swift    |  2 --
 .../Lint/UnusedDeclarationRuleExamples.swift  | 28 +++++++++++++++++++
 3 files changed, 31 insertions(+), 3 deletions(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index feccc682a6..81368168eb 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -86,7 +86,9 @@
 
 #### Bug Fixes
 
-* None.
+* Remove `@IBOutlet` and `@IBInspectable` from UnusedDeclarationRule.  
+  [Keith Smiley](https://github.com/keith)
+  [#3184](https://github.com/realm/SwiftLint/issues/3184)
 
 ## 0.41.0: World’s Cleanest Voting Booth
 
diff --git a/Source/SwiftLintFramework/Rules/Lint/UnusedDeclarationRule.swift b/Source/SwiftLintFramework/Rules/Lint/UnusedDeclarationRule.swift
index ad56ec0d6c..aea5d93efe 100644
--- a/Source/SwiftLintFramework/Rules/Lint/UnusedDeclarationRule.swift
+++ b/Source/SwiftLintFramework/Rules/Lint/UnusedDeclarationRule.swift
@@ -268,8 +268,6 @@ private let declarationKindsToSkip: Set<SwiftDeclarationKind> = [
 
 private let declarationAttributesToSkip: Set<SwiftDeclarationAttributeKind> = [
     .ibaction,
-    .ibinspectable,
-    .iboutlet,
     .main,
     .nsApplicationMain,
     .override,
diff --git a/Source/SwiftLintFramework/Rules/Lint/UnusedDeclarationRuleExamples.swift b/Source/SwiftLintFramework/Rules/Lint/UnusedDeclarationRuleExamples.swift
index ac3043da07..224036b950 100644
--- a/Source/SwiftLintFramework/Rules/Lint/UnusedDeclarationRuleExamples.swift
+++ b/Source/SwiftLintFramework/Rules/Lint/UnusedDeclarationRuleExamples.swift
@@ -126,6 +126,20 @@ struct UnusedDeclarationRuleExamples {
             func applicationWillFinishLaunching(_ notification: Notification) {}
             func applicationWillBecomeActive(_ notification: Notification) {}
         }
+        """),
+        Example("""
+        import Foundation
+
+        public final class Foo: NSObject {
+            @IBAction private func foo() {}
+        }
+        """),
+        Example("""
+        import Foundation
+
+        public final class Foo: NSObject {
+            @objc func foo() {}
+        }
         """)
     ]
 
@@ -146,6 +160,20 @@ struct UnusedDeclarationRuleExamples {
             func applicationWillFinishLaunching(_ notification: Notification) {}
             func applicationWillBecomeActive(_ notification: Notification) {}
         }
+        """),
+        Example("""
+        import Foundation
+
+        public final class Foo: NSObject {
+            @IBOutlet var ↓bar: NSObject!
+        }
+        """),
+        Example("""
+        import Foundation
+
+        public final class Foo: NSObject {
+            @IBInspectable var ↓bar: String!
+        }
         """)
     ]
 #else