From 6a09af169ebb1cb2ab0c65b887ccbd66347cbedc Mon Sep 17 00:00:00 2001
From: Martin Redington <mildm8nnered@users.noreply.github.com>
Date: Fri, 31 Mar 2023 19:59:47 +0100
Subject: [PATCH] Fix crash when parsing apple/swift (#4828)

---
 .../Rules/Idiomatic/GenericTypeNameRule.swift                   | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Source/SwiftLintFramework/Rules/Idiomatic/GenericTypeNameRule.swift b/Source/SwiftLintFramework/Rules/Idiomatic/GenericTypeNameRule.swift
index 64b05b631..2cfe52b0b 100644
--- a/Source/SwiftLintFramework/Rules/Idiomatic/GenericTypeNameRule.swift
+++ b/Source/SwiftLintFramework/Rules/Idiomatic/GenericTypeNameRule.swift
@@ -66,7 +66,7 @@ private extension GenericTypeNameRule {
 
         override func visitPost(_ node: GenericParameterSyntax) {
             let name = node.name.text
-            guard !configuration.shouldExclude(name: name) else { return }
+            guard !name.isEmpty, !configuration.shouldExclude(name: name) else { return }
 
             let allowedSymbols = configuration.allowedSymbols.union(.alphanumerics)
             if !allowedSymbols.isSuperset(of: CharacterSet(charactersIn: name)) {