How Can I Efficiently Manage and Reuse Behavior Across Collections of Different Slice Types in Go?

Reusable Behavior for Collections of Slices

Problem

To efficiently manage collections of slices of different types, such as ClockInterval and Period, you need to define common behavior while allowing for element-by-element conversions. Finding the enclosing interval for a given time is a task common to both types.

Conversion: Slices to Slices

The first challenge lies in converting slices of one type to another. Instead of directly assigning values from one slice to another, create a new slice and iterate over the original slice, converting each element individually. This ensures type safety and data integrity.

Composition

An alternative approach is to use composition to avoid duplicate code for common operations like finding the enclosing interval. Create a base struct with the desired functionality and embed it within your specific types. While this approach offers code reusability, it may introduce additional complexity in managing slices from outside the struct.

Choosing the Right Approach

The best approach depends on the specific use case and the interactions with the slices. If element-by-element conversions are required, explicit slicing and looping is necessary. If reusability is paramount, composition can be a viable option. However, it's important to consider potential drawbacks and the trade-offs involved.

Overgeneralization

While it's tempting to aim for extreme code generalization, it's sometimes wiser to accept some duplication in Go code. Creating different slices for different types, with their own dedicated operations, can enhance code clarity and reduce potential errors. It's a common pattern among experienced Go developers.

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