From c50ba032310aadef5d04c3ed2058b95b7dbccf6c Mon Sep 17 00:00:00 2001
From: Daniel Nixon <dan.nixon@gmail.com>
Date: Sun, 21 Jun 2020 10:00:58 +1000
Subject: [PATCH] fix(experimental-utils): getParserServices takes a readonly
 context

---
 .../experimental-utils/src/eslint-utils/getParserServices.ts    | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/packages/experimental-utils/src/eslint-utils/getParserServices.ts b/packages/experimental-utils/src/eslint-utils/getParserServices.ts
index 481603d7ed5..925d4976152 100644
--- a/packages/experimental-utils/src/eslint-utils/getParserServices.ts
+++ b/packages/experimental-utils/src/eslint-utils/getParserServices.ts
@@ -11,7 +11,7 @@ function getParserServices<
   TMessageIds extends string,
   TOptions extends readonly unknown[]
 >(
-  context: TSESLint.RuleContext<TMessageIds, TOptions>,
+  context: Readonly<TSESLint.RuleContext<TMessageIds, TOptions>>,
   allowWithoutFullTypeInformation = false,
 ): ParserServices {
   // backwards compatibility check