From 5a5251bc2cf29167d240ca4ae30d4b1a3a943d2e Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Marek=20D=C4=9Bdi=C4=8D?= <developer@dedic.eu>
Date: Sun, 5 Feb 2023 18:20:54 +0100
Subject: [PATCH] Fixed incorrect coverage for Vue files

---
 packages/istanbul-lib-instrument/src/visitor.js | 1 +
 1 file changed, 1 insertion(+)

diff --git a/packages/istanbul-lib-instrument/src/visitor.js b/packages/istanbul-lib-instrument/src/visitor.js
index 04e3115f..e313886d 100644
--- a/packages/istanbul-lib-instrument/src/visitor.js
+++ b/packages/istanbul-lib-instrument/src/visitor.js
@@ -787,6 +787,7 @@ function programVisitor(types, sourceFilePath = 'unknown.js', opts = {}) {
             coverageData.hash = hash;
             if (
                 coverageData.inputSourceMap &&
+                typeof coverageData.inputSourceMap !== 'string' &&
                 Object.getPrototypeOf(coverageData.inputSourceMap) !==
                     Object.prototype
             ) {