realm#2423 - Fix EmptyCountRule for binary, octal and hexadecimal int…

…eger literals

Rules.md

@@ -4723,6 +4723,21 @@ order.discount == 0
 
 ```
 
+```swift
+[Int]().count == 0xff
+
+```
+
+```swift
+[Int]().count == 0b01
+
+```
+
+```swift
+[Int]().count == 0o07
+
+```
+
 </details>
 <details>
 <summary>Triggering Examples</summary>
@@ -4742,6 +4757,26 @@ order.discount == 0
 
 ```
 
+```swift
+[Int]().↓count == 0x0
+
+```
+
+```swift
+[Int]().↓count == 0x00_00
+
+```
+
+```swift
+[Int]().↓count == 0b00
+
+```
+
+```swift
+[Int]().↓count == 0o00
+
+```
+
 ```swift
 ↓count == 0
 

Source/SwiftLintFramework/Rules/Performance/EmptyCountRule.swift

@@ -15,19 +15,26 @@ public struct EmptyCountRule: ConfigurationProviderRule, OptInRule, AutomaticTes
             "[Int]().isEmpty\n",
             "[Int]().count > 1\n",
             "[Int]().count == 1\n",
+            "[Int]().count == 0xff\n",
+            "[Int]().count == 0b01\n",
+            "[Int]().count == 0o07\n",
             "discount == 0\n",
             "order.discount == 0\n"
         ],
         triggeringExamples: [
             "[Int]().↓count == 0\n",
             "[Int]().↓count > 0\n",
             "[Int]().↓count != 0\n",
+            "[Int]().↓count == 0x0\n",
+            "[Int]().↓count == 0x00_00\n",
+            "[Int]().↓count == 0b00\n",
+            "[Int]().↓count == 0o00\n",
             "↓count == 0\n"
         ]
     )
 
     public func validate(file: File) -> [StyleViolation] {
-        let pattern = "\\bcount\\s*(==|!=|<|<=|>|>=)\\s*0"
+        let pattern = "\\bcount\\s*(==|!=|<|<=|>|>=)\\s*0(\\b|([box][0_]+\\b){1})"
         let excludingKinds = SyntaxKind.commentAndStringKinds
         return file.match(pattern: pattern, excludingSyntaxKinds: excludingKinds).map {
             StyleViolation(ruleDescription: type(of: self).description,