[CORE] Implement Dynamic Programming Storage Packing Optimizer

[mijinummi]

Labels: high-difficulty, algorithms, solidity, optimization
Difficulty: High
Module: packages/rules/solidity/src/optimizers/

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🧠 Concept

Develop a combinatorial storage packing algorithm using dynamic programming (Knapsack Variant) that calculates the optimal field arrangement for complex Solidity contracts.

⚠️ Problem

State variables in contracts with dozens of fields are rarely ordered efficiently, causing teams to spend unnecessary gas on un-packed storage slots.

📁 Implementation Scope

• packages/rules/solidity/src/optimizers/slot-packer.ts
• packages/rules/solidity/src/optimizers/slot-packer.spec.ts

🛠️ Requirements

1. Extract variable declarations, types, and bit-sizes from contract AST.
2. Solve optimal variable packing into 32-byte (256-bit) slots while honoring inheritance layouts.
3. Output a refactored contract declaration string minimizing total required storage slots.

🎯 Acceptance Criteria

• Computes mathematically minimal storage layouts for multi-variable state lists.
• Respects variable inheritance order constraints.

[amehsamuel200225-sketch]

@amehsamuel200225-sketch has applied to work on this issue as part of the Stellar Wave Program's 7th wave.

Hi, I’m Ameh Samuel a software engineer… let me fix this issue please!

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[funds0033-cmyk]

@funds0033-cmyk has applied to work on this issue as part of the Stellar Wave Program's 7th wave.

Pls will like to work on this I will deliver a highly recommended solution to the request with a well tested code for easy merging pls kindly assign

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[usmanimamu17-create]

@usmanimamu17-create has applied to work on this issue as part of the Stellar Wave Program's 7th wave.

Hello, can I take this issue please? Thank you.

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[drips-wave]

Congratulations, @usmanimamu17-create! 🎉 Your application was accepted by the repo's maintainers, and the issue is due on July 30, 2026.

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