Detect Dynamic Array Deletion Inefficiencies

[mijinummi]

🧠 Concept

Detect expensive dynamic array deletions.

⚠️ Problem

Improper deletions waste gas.

📁 Implementation Scope

• rules/optimization/arrays/

✅ Requirements

• Detect shifting operations
• Suggest swap-and-pop

🎯 Acceptance Criteria

• Inefficient deletions detected

[esenyidaniel-hash]

@esenyidaniel-hash has applied to work on this issue as part of the Stellar Wave Program's 6th wave.

Please can I be assigned this issue to work on?

ℹ️ Repo Maintainers: To accept this application, review their application or assign @esenyidaniel-hash to this issue.

[Silver36-ship-it]

@Silver36-ship-it has applied to work on this issue as part of the Stellar Wave Program's 6th wave.

I would love to work on this professionally, please assign it to me

ℹ️ Repo Maintainers: To accept this application, review their application or assign @Silver36-ship-it to this issue.

[NnamdiCyber]

@NnamdiCyber has applied to work on this issue as part of the Stellar Wave Program's 6th wave.

Hello maintainers, I'd like to work on this issue. I have experience with Solidity optimization patterns, static analysis tooling, and identifying gas inefficiencies in smart contracts. For this task, I would implement a detection rule under rules/optimization/arrays/ that identifies expensive dynamic array deletion patterns, such as shifting elements unnecessarily or using deletion approaches that incur avoidable gas costs. I would ensure the rule produces clear, actionable findings, add comprehensive test cases covering both vulnerable and compliant implementations, and align the implementation with the project's existing rule architecture and reporting conventions.

ℹ️ Repo Maintainers: To accept this application, review their application or assign @NnamdiCyber to this issue.

[keljoshX]

@keljoshX has applied to work on this issue as part of the Stellar Wave Program's 6th wave.

Hey, can i be assigned to this?

ℹ️ Repo Maintainers: To accept this application, review their application or assign @keljoshX to this issue.

[barry01-hash]

@barry01-hash has applied to work on this issue as part of the Stellar Wave Program's 6th wave.

I will like tio work on this issue

ℹ️ Repo Maintainers: To accept this application, review their application or assign @barry01-hash to this issue.

[Stanley-Owoh]

@Stanley-Owoh has applied to work on this issue as part of the Stellar Wave Program's 6th wave.

Good day maintainer, please I would like to work on this issue. I have experience with Solidity optimization patterns, and I will implement detection for inefficient dynamic array deletions, flag shifting operations, and suggest swap-and-pop improvements. I would appreciate it if you could assign this issue to me.

ℹ️ Repo Maintainers: To accept this application, review their application or assign @Stanley-Owoh to this issue.

[sadiqabubakar826-del]

@sadiqabubakar826-del has applied to work on this issue as part of the Stellar Wave Program's 6th wave.

Hy maintainer, am active and will resolve this issue immediately if assigned to me thanks

ℹ️ Repo Maintainers: To accept this application, review their application or assign @sadiqabubakar826-del to this issue.

[drips-wave]

Congratulations, @barry01-hash! 🎉 Your application was accepted by the repo's maintainers, and the issue is due on June 30, 2026.

🧑‍💻 @barry01-hash: 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

When opening a PR, please link it to this issue to ensure it gets tracked accurately. Points are awarded when this issue is marked as completed by the maintainer.

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