[PERF] Compress Contract Configuration Flags into a Single Storage Slot

[mijinummi]

Labels: medium-difficulty, solidity, storage-packing, gasguard
Difficulty: Medium
Module: contracts/config/

---

🧠 Concept

Refactor multiple individual boolean configuration state variables (bool isPaused, bool isLocked, bool allowPublic) into a single bytes32 bitmask variable.

⚠️ Problem

Using individual bool state variables allocates multiple 32-byte storage slots (or requires complex struct packing), incurring multiple SLOAD operations during execution.

📁 Implementation Scope

• contracts/config/BitmaskConfig.sol
• test/config/BitmaskConfig.test.ts

🛠️ Requirements

1. Define bit-flag offsets (uint256 constant PAUSED_BIT = 1 << 0, etc.).
2. Implement inline assembly getters and setters to check and set individual bits within a single bytes32 storage slot.

🎯 Acceptance Criteria

• All operational flags fit into a single storage slot.
• Queries and toggles operate using low-gas bitwise operators (AND, OR, XOR).

[YaronZaki]

@YaronZaki has applied to work on this issue as part of the Stellar Wave Program's 7th wave.

Please assign me this issue.

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[Nemenwq]

@Nemenwq has applied to work on this issue as part of the Stellar Wave Program's 7th wave.

hi maintainer, I have gone through the issue description and have a clear understanding of the requirements. I’d like to work on this issue and am confident I can implement the required changes successfully.
please assign me this. eta: 5hours

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[Yasir-TechGuy]

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[OLAMIGHTY010]

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[sladeoj]

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hello maintainer i would love to work on this issue please

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[MissBlue00]

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Hi maintainer, can this task be assigned to me?

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[hashmart138-creator]

@hashmart138-creator has applied to work on this issue as part of the Stellar Wave Program's 7th wave.

Hi Maintainer, I’d like to work on this issue
I have experience. thank you!

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[rindicomfort]

@rindicomfort has applied to work on this issue as part of the Stellar Wave Program's 7th wave.

Hello Maintainer,

Please I’d love to take this issue on. I’m a smart contract and full-stack developer with experience across OnlyDust, Drips Waves

My stack includes Rust, Soroban, Cairo, Solidity, and TypeScript. I can deliver a clean, tested, and well-documented solution within 24 hours of assignment.

Happy to start immediately. Thank You

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[abrahambaba1]

@abrahambaba1 has applied to work on this issue as part of the Stellar Wave Program's 7th wave.

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[drips-wave]

Congratulations, @YaronZaki! 🎉 Your application was accepted by the repo's maintainers, and the issue is due on July 30, 2026.

🧑‍💻 @YaronZaki: Please resolve the issue such that the repo's maintainers have enough time to review your contribution before the due date. You'll earn Points for completing the issue on-time, which will make you eligible for a share of the Stellar Wave Program's reward pool.

Warning

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🌊 Happy Wave 🌊

[grantfox-oss]

🎉 This issue has been marked as completed on GrantFox!

@YaronZaki's PR #744 was approved and merged by @mijinummi.

🏆 @YaronZaki: You earned 35 FoxPoints for this contribution! Your current tier: Explorer (907 total points). Track your full progress on GrantFox.

👏 Great work, @YaronZaki! Keep contributing to MDTechLabs.