chore(idx): initialize internal structures only when IDs are provided in NewSet function

[kasugamirai]

• Ensure that the internal list and map are created only if IDs are passed to NewSet.
• Update Clone method to use type parameter explicitly for better clarity.

Summary by CodeRabbit

• New Features

  • Improved initialization logic for Set type
  • Enhanced type safety for Set creation and cloning

• Bug Fixes

  • Resolved potential issues with uninitialized Set fields
  • Ensured proper handling of ID slice during Set creation

[coderabbitai]

Walkthrough

The changes in the idx/set.go file focus on improving the initialization and type safety of the Set type. The NewSet function now conditionally initializes internal fields based on the presence of input IDs, ensuring proper setup of the set's data structures. The Clone method has been updated to explicitly specify the type parameter, enhancing type clarity and safety.

Changes

File	Change Summary
idx/set.go	- Conditional initialization of s.l and s.m in NewSet
	- Explicit type parameter specification in Clone method
	- Method signature updated to use generic type parameter T

Poem

🐰 A Set so smart, with logic tight,
Initializing fields just right!
No more empty maps astray,
Type safety leads the way today
A rabbit's code, precise and bright! 🔍

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📥 Commits

Reviewing files that changed from the base of the PR and between 9b8bc8a and 369786f.

📒 Files selected for processing (1)

• idx/set.go (2 hunks)

⏰ Context from checks skipped due to timeout of 90000ms (1)

• GitHub Check: CI

🔇 Additional comments (2)

idx/set.go (2)

10-14: Optimize memory usage with on-demand initialization

Great job on only initializing l and m when IDs are passed in. This lazy initialization reduces memory usage when no IDs are provided. However, ensure that the rest of the code gracefully handles the case where these fields are still nil. It looks like your Add logic handles this for m by creating a new map if needed, and appending to a nil slice for l is safe in Go.

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41-41: Explicitly specifying the type parameter clarifies intent

By explicitly adding [T] to NewSet in Clone, you make the type usage more obvious to future readers. This also helps reduce ambiguity in case of complex type inference scenarios.

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