From aa8ab5b6e2a700828fb8439a0be5fe6ce4fae3ac Mon Sep 17 00:00:00 2001
From: Thomas Mair <thomas.mair86@gmail.com>
Date: Tue, 17 Jun 2025 09:43:25 +0200
Subject: [PATCH] fix: fix incorrect replacement of Object properties in
 REPLACEMENT constants

---
 lib/constants.js      | 11 ++++++-----
 test/api.picomatch.js |  8 +++++++-
 2 files changed, 13 insertions(+), 6 deletions(-)

diff --git a/lib/constants.js b/lib/constants.js
index 27b3e20f..1e2d8d92 100644
--- a/lib/constants.js
+++ b/lib/constants.js
@@ -85,6 +85,11 @@ const POSIX_REGEX_SOURCE = {
   xdigit: 'A-Fa-f0-9'
 };
 
+const REPLACEMENTS = Object.create(null);
+REPLACEMENTS['***'] = '*';
+REPLACEMENTS['**/**'] = '**';
+REPLACEMENTS['**/**/**'] = '**';
+
 module.exports = {
   MAX_LENGTH: 1024 * 64,
   POSIX_REGEX_SOURCE,
@@ -98,11 +103,7 @@ module.exports = {
   REGEX_REMOVE_BACKSLASH: /(?:\[.*?[^\\]\]|\\(?=.))/g,
 
   // Replace globs with equivalent patterns to reduce parsing time.
-  REPLACEMENTS: {
-    '***': '*',
-    '**/**': '**',
-    '**/**/**': '**'
-  },
+  REPLACEMENTS: REPLACEMENTS,
 
   // Digits
   CHAR_0: 48, /* 0 */
diff --git a/test/api.picomatch.js b/test/api.picomatch.js
index 2fe67cff..24a554d3 100644
--- a/test/api.picomatch.js
+++ b/test/api.picomatch.js
@@ -2,7 +2,7 @@
 
 const assert = require('assert');
 const picomatch = require('..');
-const { isMatch } = picomatch;
+const { isMatch, makeRe } = picomatch;
 
 const assertTokens = (actual, expected) => {
   const keyValuePairs = actual.map(token => [token.type, token.value]);
@@ -378,4 +378,10 @@ describe('picomatch', () => {
       });
     });
   });
+
+  describe('makeRe', () => {
+    it('should work when supplying constructor as input', () => {
+      assert.strictEqual(makeRe('constructor').source, '^(?:^(?:constructor)$)$');
+    });
+  });
 });