From ea95df94abd6b0eb6aeee142e60e50bfc2da313a Mon Sep 17 00:00:00 2001
From: Toru Nagashima <star.ctor@gmail.com>
Date: Fri, 5 Oct 2018 19:01:13 +0900
Subject: [PATCH] Fix: no-invalid-regexp disallows \ at end of pattern (fixes
 #10861)

---
 package.json                         | 2 +-
 tests/lib/rules/no-invalid-regexp.js | 8 +++++++-
 2 files changed, 8 insertions(+), 2 deletions(-)

diff --git a/package.json b/package.json
index e970cf87cb0..cfc6b1b017a 100644
--- a/package.json
+++ b/package.json
@@ -66,7 +66,7 @@
     "path-is-inside": "^1.0.2",
     "pluralize": "^7.0.0",
     "progress": "^2.0.0",
-    "regexpp": "^2.0.0",
+    "regexpp": "^2.0.1",
     "require-uncached": "^1.0.3",
     "semver": "^5.5.1",
     "strip-ansi": "^4.0.0",
diff --git a/tests/lib/rules/no-invalid-regexp.js b/tests/lib/rules/no-invalid-regexp.js
index 305f4e0d383..0062a5bbc5a 100644
--- a/tests/lib/rules/no-invalid-regexp.js
+++ b/tests/lib/rules/no-invalid-regexp.js
@@ -46,6 +46,12 @@ ruleTester.run("no-invalid-regexp", rule, {
     invalid: [
         { code: "RegExp('[');", errors: [{ message: "Invalid regular expression: /[/: Unterminated character class.", type: "CallExpression" }] },
         { code: "RegExp('.', 'z');", errors: [{ message: "Invalid flags supplied to RegExp constructor 'z'.", type: "CallExpression" }] },
-        { code: "new RegExp(')');", errors: [{ message: "Invalid regular expression: /)/: Unmatched ')'.", type: "NewExpression" }] }
+        { code: "new RegExp(')');", errors: [{ message: "Invalid regular expression: /)/: Unmatched ')'.", type: "NewExpression" }] },
+
+        // https://github.com/eslint/eslint/issues/10861
+        {
+            code: String.raw`new RegExp('\\');`,
+            errors: [{ message: "Invalid regular expression: /\\/: \\ at end of pattern.", type: "NewExpression" }]
+        }
     ]
 });