From 1a76a882ca3087bac0952282f65688c1949ecbc6 Mon Sep 17 00:00:00 2001
From: JP Simard <jp@jpsim.com>
Date: Fri, 7 Oct 2022 10:33:13 -0400
Subject: [PATCH] Ignore incorrect keypath parser diagnostics (#4325)

Works around https://github.com/apple/swift-syntax/issues/888
---
 .../SwiftLintFramework/Extensions/SwiftLintFile+Cache.swift   | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/Source/SwiftLintFramework/Extensions/SwiftLintFile+Cache.swift b/Source/SwiftLintFramework/Extensions/SwiftLintFile+Cache.swift
index 16ea02903..eb9e2e1fe 100644
--- a/Source/SwiftLintFramework/Extensions/SwiftLintFile+Cache.swift
+++ b/Source/SwiftLintFramework/Extensions/SwiftLintFile+Cache.swift
@@ -171,6 +171,10 @@ extension SwiftLintFile {
         return ParseDiagnosticsGenerator.diagnostics(for: syntaxTree)
             .filter { $0.diagMessage.severity == .error }
             .map(\.message)
+            .filter { message in
+                // Workaround for https://github.com/apple/swift-syntax/issues/888
+                return !message.starts(with: "unexpected text '.?.")
+            }
     }
 
     internal var structure: Structure {