1 files changed, 43 insertions, 0 deletions
diff --git a/node_modules/react-dom/lib/adler32.js b/node_modules/react-dom/lib/adler32.js
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index 000000000..e153adcb3
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+++ b/node_modules/react-dom/lib/adler32.js
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+/**
+ * Copyright 2013-present, Facebook, Inc.
+ * All rights reserved.
+ *
+ * This source code is licensed under the BSD-style license found in the
+ * LICENSE file in the root directory of this source tree. An additional grant
+ * of patent rights can be found in the PATENTS file in the same directory.
+ *
+ * 
+ */
+
+'use strict';
+
+var MOD = 65521;
+
+// adler32 is not cryptographically strong, and is only used to sanity check that
+// markup generated on the server matches the markup generated on the client.
+// This implementation (a modified version of the SheetJS version) has been optimized
+// for our use case, at the expense of conforming to the adler32 specification
+// for non-ascii inputs.
+function adler32(data) {
+  var a = 1;
+  var b = 0;
+  var i = 0;
+  var l = data.length;
+  var m = l & ~0x3;
+  while (i < m) {
+    var n = Math.min(i + 4096, m);
+    for (; i < n; i += 4) {
+      b += (a += data.charCodeAt(i)) + (a += data.charCodeAt(i + 1)) + (a += data.charCodeAt(i + 2)) + (a += data.charCodeAt(i + 3));
+    }
+    a %= MOD;
+    b %= MOD;
+  }
+  for (; i < l; i++) {
+    b += a += data.charCodeAt(i);
+  }
+  a %= MOD;
+  b %= MOD;
+  return a | b << 16;
+}
+
+module.exports = adler32;
+\ No newline at end of file