From 952092c8d1beae4988d3ec959b4beb8ecc3654f4 Mon Sep 17 00:00:00 2001
From: Henry Zhu <hi@henryzoo.com>
Date: Fri, 26 Mar 2021 00:48:53 -0400
Subject: [PATCH] inline isRegExp

---
 packages/babel-types/src/converters/valueToNode.ts | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/packages/babel-types/src/converters/valueToNode.ts b/packages/babel-types/src/converters/valueToNode.ts
index ed58a475fb75..4505a2186e15 100644
--- a/packages/babel-types/src/converters/valueToNode.ts
+++ b/packages/babel-types/src/converters/valueToNode.ts
@@ -1,5 +1,4 @@
 import isPlainObject from "lodash/isPlainObject";
-import isRegExp from "lodash/isRegExp";
 import isValidIdentifier from "../validators/isValidIdentifier";
 import {
   identifier,
@@ -33,6 +32,10 @@ export default valueToNode as {
   (value: unknown): t.Expression;
 };
 
+function isRegExp(value): boolean {
+  return Object.prototype.toString.call(value) === "[object RegExp]";
+}
+
 function valueToNode(value: unknown): t.Expression {
   // undefined
   if (value === undefined) {
@@ -81,7 +84,7 @@ function valueToNode(value: unknown): t.Expression {
 
   // regexes
   if (isRegExp(value)) {
-    const pattern = value.source;
+    const pattern = (value as RegExp).source;
     const flags = value.toString().match(/\/([a-z]+|)$/)[1];
     return regExpLiteral(pattern, flags);
   }