refactor: use the built-in max/min to simplify the code

[nuxtreact]

Description

In Go 1.21, the standard library includes built-in max/min function, which can greatly simplify the code.

Related Issue

Motivation and Context

How Has This Been Tested?

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)
• Documentation update (including inline docs)
• Other (please describe):

Checklist:

• My code follows the code style of this project.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have read the CONTRIBUTING document.
• I have added tests to cover my changes.
• All new and existing tests passed.

Checklist Explanation:

How to Review this PR:

Additional Information:

Summary by CodeRabbit

• Refactor
  • Simplified internal clamping and backoff calculations across several modules (using concise min-based expressions).
  • No functional changes to behavior or public interfaces; runtime behavior and exposed APIs remain unchanged.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro

Run ID: 90522e43-b14a-4524-afbc-1c3a92642b2a

📥 Commits

Reviewing files that changed from the base of the PR and between 4337eb3 and d11f289.

📒 Files selected for processing (2)

• node/exts/erc20-bridge/erc20/meta_extension.go
• node/exts/evm-sync/instance.go

🚧 Files skipped from review as they are similar to previous changes (1)

• node/exts/evm-sync/instance.go

---

📝 Walkthrough

Walkthrough

Consolidates conditional clamping into single min() expressions across multiple modules: block range calculations, scale computation, and exponential backoff delay updates. No exported APIs or behavioral changes introduced; only internal control-flow expressions were simplified.

Changes

Cohort / File(s)	Summary
EVM Sync node/exts/evm-sync/instance.go, node/exts/evm-sync/instance_test.go, node/exts/evm-sync/listener.go	Replaced explicit if-based clamping with min() for block boundary calculation and exponential backoff delay updates (condensed multiply-then-clamp into a single min() expression).
ERC20 Bridge node/exts/erc20-bridge/erc20/meta_extension.go	Simplified scaleDownUint256 by capping scale via min(n.Scale(), decimals) instead of manual conditional cap; downstream precision calls unchanged.
ETH Deposits extensions/listeners/eth_deposits/deposits.go	Replaced two-step toBlock adjustment with toBlock = min(lastHeight + BlockSyncChunkSize, currentHeight - RequiredConfirmations).

Estimated code review effort

🎯 3 (Moderate) | ⏱️ ~20 minutes

Poem

🐰 I nibble on branches, tidy each line,
A tiny min() makes the boundaries fine,
Fewer forks to ponder, fewer paths to trace,
My hops leave the logic neat in their place,
Hop, commit, and celebrate—code in a calmer space ✨

🚥 Pre-merge checks | ✅ 3

✅ Passed checks (3 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title accurately describes the main change: replacing custom max/min implementations with Go's built-in functions to simplify code across multiple files.
Docstring Coverage	✅ Passed	Docstring coverage is 100.00% which is sufficient. The required threshold is 80.00%.

_{✏️ Tip: You can configure your own custom pre-merge checks in the settings.}

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Post copyable unit tests in a comment

📝 Coding Plan for PR comments

• Generate coding plan

---

Thanks for using CodeRabbit! It's free for OSS, and your support helps us grow. If you like it, consider giving us a shout-out.

❤️ Share

• X
• Mastodon
• Reddit
• LinkedIn

_{Comment @coderabbitai help to get the list of available commands and usage tips.}

[holdex]

Time Submission Status

Member	Status	Time	Action	Last Update
@nuxtreact	❌ Missing	-	⚠️ Submit time	-
MicBun	✅ Submitted	15min	Update time	Mar 12, 2026, 1:28 PM

---

You can submit time with the command. Example:

@holdex pr submit-time 15m

See available commands to help comply with our Guidelines.

[MicBun]

lgtm

[MicBun]

hi @nuxtreact, sorry for the late merge and the late reply, thank you for the contribution!