🔥 New smart contract challenge — Tact Smart Battle

🧩 5 tasks
💰 $20k in prizes
🪪 On-chain reputation
💼 Real chance to get a job at TON

If you’ve joined past challenges — you’ll love this one.

📌 Announcement & details: https://news.1rj.ru/str/toncontests/194

🫧 Tolk v1.0: lazy loading, partial updating, AST inlining — and extremely low gas fees

This is happening today.

I managed not only to finish up the compiler, but also to migrate standard contracts from FunC to Tolk.

I covered every contract with gas metrics to check whether it's more efficient than FunC or not. I didn't believe my eyes. I double-checked, triple-checked, but nothing changed. The results are correct. And now I am ready to present them to you.

🧪 Benchmarks!

Every contract has several metrics. For example, "basic jetton — mint".
FunC: 19278. Tolk: 11611.
Gas savings: -39.77%

|————————————————–-
| 01 — Jetton (mint, transfer, burn, discover)
| -39.77% | -30.32% | -33.66% | -26.75%
|————————————————–-
| 02 — NFT (deploy, transfer, onchain get)
| -43.79% | -37.47% | -44.28%
|————————————————–-
| 03 — Notcoin
| -35.72% | -27.98% | ...
|————————————————–-
| 04 — tgBTC
| -23.94% | -26.99% | ...
|————————————————–-
| 05 — Wallet v5
| -21.66% | -22.92% | ...
|————————————————–-
| 06 — Vesting
| -45.30% | -29.61% | ...
|————————————————–-
| 07 — Telegram gifts
| -54.81% | -39.39% | ...
|————————————————–-

I have migrated 7 contracts — preserving the original behavior and passing the same tests.

All benchmarks are open. No cheating. Just a smart compiler — and a language designed to be optimized.

— Even wallet?! But it's very low-level and tricky!

Even wallet. You just express your thoughts without any tricks — and it works automatically.

— But how? How is it possible to achieve such numbers?

Of course, I've put a lot of smartness into the compiler. A strong type system. Automatic inlining. Built-in serialization. The magic lazy keyword.

But first of all, Tolk is built for readability. These contracts aren't "just cleaner" than their FunC equivalents — they're elegant. No magic. No low-level intrigues. Just clean, consistent logic — whether it's a Jetton or a Wallet.

And gas savings? They are a consequence. I didn't micro-optimize. Each contract was rewritten in about a day — just focusing on clarity. The core principle is simple: once you make it elegant, it automatically becomes efficient.


✅ Notable changes in Tolk v1.0:

1. Lazy loading — only read what you actually use
2. AST-based inlining — zero-cost getters and methods
3. Peephole optimizations, TVM-11 — smaller code, lower gas

PR on GitHub with detailed info.

Just take a look:

val st = lazy Storage.load();
// the compiler skips everything and loads only what you access
return st.publicKey;

That's it. Lazy loading and partial updates (calculating immutable slices for writing) — one magic lazy keyword to rule them all.

⚙️ The Release. What's inside

- JetBrains IDE plugin — with completion, resolving, etc... ✓ done
- VS Code Extension — with suggestions, stdlib integration, etc... ✓ done
- Language server — for any LSP-compatible editor... ✓ done
- FunC-to-Tolk converter — migrate a project in 10 seconds... ✓ done
- Documentation — for smooth transition from FunC... ✓ done

And the TOLK language itself — exactly as I've visioned it... 7 months ago


📅 The essence of Numbers

At this moment, abstract yourself from the text. Take a look at the calendar.

Today is 07/07/25 (I mean 2+5, of course).

After the TON Gateway, throughout all November, I was laying out the roadmap towards Tolk v1.0. On December 1, I started working. It means, that the journey till now took exactly 7 months 7 days. If you scroll this channel to the top, you'll see an announcement... Of Tolk v0.7

🪐 What's next?

I could have written about my plans — for the language, TVM, ABI, TypeScript wrappers... but I won't.

Because today, instead of rushing into the future, maybe we can allow ourselves to look back.
To pause the endless race — just for a moment.
To notice how many beautiful coincidences pass us by — unnoticed in our constant hurry.

Just step outside.
Close your eyes.
Count to seven.
Feel it.

When you're ready —
Let's Tolk

🎉 Unified TON Extension for VS Code is here!

Following the single convenient JetBrains IDE plugin, we are now introducing a unified extension for TON development for VS Code that supports all necessary languages and technologies.

This is the first contribution from Petr, who recently joined the TON Core team to make life sweeter for TON developers.

📜 The extension provides advanced features for the main TON technologies: Tolk, FunC, TL-B, Fift Assembly, TASM, BoC, Blueprint! If you use the old extensions for Tolk or FunC, we recommend trying the new extension, as it offers better language support (we even support try/catch for FunC 😎).

📥 Install now

- VS Code Marketplace
- Open VSX (if you use Cursor, Windsurf, etc.)

We thank the @tontech team for the FunC debugger which is now integrated into the extension, so you don't need to install a separate extension!

Happy hacking! 🛠️✨