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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-19 00:47:55 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-19 00:47:55 +0000
commit26a029d407be480d791972afb5975cf62c9360a6 (patch)
treef435a8308119effd964b339f76abb83a57c29483 /js/src/jit-test/lib/string.js
parentInitial commit. (diff)
downloadfirefox-26a029d407be480d791972afb5975cf62c9360a6.tar.xz
firefox-26a029d407be480d791972afb5975cf62c9360a6.zip
Adding upstream version 124.0.1.upstream/124.0.1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'js/src/jit-test/lib/string.js')
-rw-r--r--js/src/jit-test/lib/string.js24
1 files changed, 24 insertions, 0 deletions
diff --git a/js/src/jit-test/lib/string.js b/js/src/jit-test/lib/string.js
new file mode 100644
index 0000000000..15431ae2c1
--- /dev/null
+++ b/js/src/jit-test/lib/string.js
@@ -0,0 +1,24 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+
+if (typeof isHighSurrogate === 'undefined') {
+ var isHighSurrogate = function isHighSurrogate(s) {
+ var c = s.charCodeAt(0);
+ return c >= 0xD800 && c <= 0xDBFF;
+ }
+}
+
+if (typeof isLowSurrogate === 'undefined') {
+ var isLowSurrogate = function isLowSurrogate(s) {
+ var c = s.charCodeAt(0);
+ return c >= 0xDC00 && c <= 0xDFFF;
+ }
+}
+
+if (typeof isSurrogatePair === 'undefined') {
+ var isSurrogatePair = function isSurrogatePair(s) {
+ return s.length == 2 && isHighSurrogate(s[0]) && isLowSurrogate(s[1]);
+ }
+}