Add benchmark for emoji-regex library

JetStreamDriver.js

@@ -2152,6 +2152,33 @@ let BENCHMARKS = [
         exposeBrowserTest: true,
         tags: ["default", "js",  "RexBench"],
     }),
+    new AsyncBenchmark({
+        name: "emoji-regex",
+        files: [
+            "./utils/StartupBenchmark.js",
+            "./emoji-regex/benchmark.js",
+        ],
+        preload: {
+            BUNDLE: "./emoji-regex/dist/bundle.es6.min.js",
+            "small.md": "./emoji-regex/data/small.md",
+            "medium.md": "./emoji-regex/data/medium.md",
+            "large.md": "./emoji-regex/data/large.md",
+            "zh.md": "./emoji-regex/data/zh.md",
+            "hi.md": "./emoji-regex/data/hi.md",
+            "vi.md": "./emoji-regex/data/vi.md",
+            "msg1.md": "./emoji-regex/data/msg1.md",
+            "msg2.md": "./emoji-regex/data/msg2.md",
+            "msg3.md": "./emoji-regex/data/msg3.md",
+            "msg4.md": "./emoji-regex/data/msg4.md",
+            "msg5.md": "./emoji-regex/data/msg5.md",
+            "msg6.md": "./emoji-regex/data/msg6.md",
+            "msg7.md": "./emoji-regex/data/msg7.md",
+            "msg8.md": "./emoji-regex/data/msg8.md",
+            "msg9.md": "./emoji-regex/data/msg9.md",
+            "msg10.md": "./emoji-regex/data/msg10.md",
+        },
+        tags: ["default", "js", "regexp", "markdown", "unicode"],
+    }),
     new DefaultBenchmark({
         name: "validatorjs",
         files: [

emoji-regex/benchmark.js

@@ -0,0 +1,71 @@
+/*
+ * Copyright (C) 2026 Apple Inc. All rights reserved.
+ * Copyright 2026 Google LLC
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
+ * THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+class Benchmark extends StartupBenchmark {
+    results = [];
+    totalHash = 0xdeadbeef;
+    samples = [];
+
+    constructor({iterationCount}) {
+        super({
+            iterationCount,
+            expectedCacheCommentCount: 122,
+            sourceCodeReuseCount: 4,
+        });
+    }
+
+    async init() {
+        const mdFileNames = [
+            "small.md", "medium.md", "large.md",
+            "zh.md", "hi.md", "vi.md",
+            "msg1.md", "msg2.md", "msg3.md", "msg4.md", "msg5.md",
+            "msg6.md", "msg7.md", "msg8.md", "msg9.md", "msg10.md",
+        ];
+        await Promise.all([
+            super.init(),
+            ...mdFileNames.map(file => this.loadData(file)),
+        ]);
+    }
+
+    async loadData(fileName) {
+        const content = await JetStream.getString(JetStream.preload[fileName]);
+        this.samples.push(content);
+        console.assert(content.length > 0);
+    }
+
+    runIteration(iteration) {
+        let EmojiRegexBenchmark;
+        eval(this.iterationSourceCodes[iteration]);
+
+        for (const sample of this.samples) {
+            const result = EmojiRegexBenchmark.render(sample);
+            if (result.length <= 0) {
+                throw new Error(`Invalid result length: ${result.length}`);
+            }
+            this.totalHash ^= this.quickHash(result);
+        }
+    }
+}

emoji-regex/data/hi.md

@@ -0,0 +1,19 @@
+# हिंदी 🇮🇳 परीक्षण
+
+यह एक हिंदी मार्कडाउन परीक्षण फ़ाइल है।
+
+## मुख्य 📝 बिंदु:
+1. यह पहला 👋🏾 बिंदु है। (नमस्ते)
+2. यह 🧘🏿‍♂️ दूसरा बिंदु है। (योग)
+3. यह तीसरा 🤝 बिंदु है। (साझेदारी)
+
+**महत्वपूर्ण:** _कृपया ⚠️ ध्यान दें_
+
+| वस्तु | मात्रा |
+| :--- | :---: |
+| आम 🥭 | 10 |
+| क्रिकेट 🏏 बैट | 2 |
+
+अन्य: 🥘
+
+आशा 🧡 है आपको पसंद आएगा!

emoji-regex/data/large.md

@@ -0,0 +1,41 @@
+# Subject: Weekly 📅 Update
+
+Hi Team,
+
+Here is the update for this week. We have made 🎉 **great progress**!
+
+## Highlights 🌟
+- Feature A is complete! ✅
+  - Sub-task A.1 🔨 done
+  - Sub-task 🔧 A.2 done
+- Bug 🐛 B is fixed 🔫.
+- Performance 📈 is up by 10%.
+
+## Code Snippet 💻
+
+```javascript
+function hello() {
+  console.log("Hello 🌍");
+}
+```
+
+## Data 📊 Analysis
+
+| Metric | Previous | Current | Change |
+| :--- | :---: | :---: | ---: |
+| Users 👤 | 100 | 120 👥 | +20% 🆙 |
+| Errors ❌ | 5 | 2 📉 | -60% 🆒 |
+
+---
+
+## Next steps 👣
+1. Start 🚧 working on Feature C.
+2. Review 📝 the design docs.
+3. Team 🍕 lunch on 🍔 Friday! 🍟
+
+> Note: Don't forget ⏰ to update your timesheets!
+
+Please let me know ❓ if you have any questions.
+
+Cheers,
+The 👯‍♂️ Team

emoji-regex/data/medium.md

@@ -0,0 +1,18 @@
+# Medium 📏 Test
+
+Here is some 🗣️ more text. It has a few more emojis.
+
+> "Quotes are 🗣️ great"
+
+1. Line 1: 🍎 Banana 🍌 Grape 🍇
+2. Line 2: Dog 🐶 Cat 🐱 Mouse 🐭
+3. Line 3: Car 🚗 Taxi 🚕 SUV 🚙
+
+[Link 🔗 to nowhere](http://example.com)
+
+| Item | Emoji |
+|------|-------|
+| 🍎 Apple| Fruit |
+| 🚗 Car  | Vehicle |
+
+Hope this is 😉 enough for a _medium_ test.

emoji-regex/data/msg1.md

@@ -0,0 +1 @@
+Hey! 👋 What's up?

emoji-regex/data/msg10.md

@@ -0,0 +1 @@
+Call me 📞 when you get this. ❗

emoji-regex/data/msg2.md

@@ -0,0 +1 @@
+On my way 🚗💨 be there soon!

emoji-regex/data/msg3.md

@@ -0,0 +1 @@
+LOL 😂 that's hilarious! 🤣

emoji-regex/data/msg4.md

@@ -0,0 +1 @@
+Can you buy 🥛 and 🍞 on your way home? 🙏

emoji-regex/data/msg5.md

@@ -0,0 +1 @@
+🎉 Happy Birthday!!! 🎂🎈🎁

emoji-regex/data/msg6.md

@@ -0,0 +1 @@
+I'm so tired 😴... Goodnight 🌙

emoji-regex/data/msg7.md

@@ -0,0 +1 @@
+Did you see the game? 🏈 What a catch! 😲

emoji-regex/data/msg8.md

@@ -0,0 +1 @@
+Thinking about 🤔 pizza 🍕 for dinner?

emoji-regex/data/msg9.md

@@ -0,0 +1 @@
+❤️ Love you! 😘

emoji-regex/data/small.md

@@ -0,0 +1,7 @@
+# Small 🧪 Test
+
+Hello 😀 world! This is a **small** 🚀 test.
+
+## Features
+- *Italic* ✍️ text
+- `Inline 💻 code`

emoji-regex/data/vi.md

@@ -0,0 +1,19 @@
+# Kiểm tra ✨ Tiếng Việt 🇻🇳
+
+Đây là một tệp kiểm tra Markdown bằng Tiếng Việt.
+
+## Điểm 📜 nổi bật:
+* Đây là điểm 👌🏼 đầu tiên. (Được)
+* Đây là điểm 🛵 thứ hai. (Xe máy)
+* Đây là điểm thứ 🍜 ba. (Phở)
+
+---
+
+### Đoạn 💃🏻 trích
+> "Không có gì 🇻🇳 quý hơn độc lập tự do."
+
+[Liên kết 🔗 mẫu](https://example.com)
+
+Khác: 🌴 ☕
+
+Hy vọng bạn 🧡 thích nó!

emoji-regex/data/zh.md

@@ -0,0 +1,21 @@
+# 繁體 🇹🇼 中文測試
+
+這是一個繁體中文的 Markdown 測試文件。
+
+## 重點 📋 清單
+- 這是 👍🏽 第一點。(讚)
+  - 子項目 🅰️ A
+- 這是第二點 🙅🏻‍♀️。(不)
+- 這是 👩‍💻 第三點。(工程師)
+
+## 程式碼 ⌨️ 區塊
+
+```python
+print("你好，世界！ 🌏")
+```
+
+> 引用：學而不思 🤔 則罔。
+
+其他：🌮 墨西哥卷 🌺 花 🏃🏿‍♂️ 跑步
+
+希望 🧡 你喜歡！