How does struct embedding affect performance in Go?

How does struct embedding affect performance in Go?

Struct embedding in Go allows you to include one struct within another, promoting code reuse. It can improve performance by reducing memory overhead and enhancing cache locality, but it may also introduce some complexity in method resolution.

Can you give an example of struct embedding?

Sure! Here's a simple example:

type Address struct {
    City  string
    State string
}

type Person struct {
    Name    string
    Address // Embedding Address struct
}

In this case, Person has an embedded Address, allowing direct access to City and State.

What are the trade-offs of using struct embedding?

The trade-offs include increased complexity in method resolution and potential for name collisions. However, it can lead to cleaner code and better performance if used judiciously.

Is there a performance benchmark for struct embedding?

Yes, benchmarks can vary based on use cases, but generally, struct embedding can lead to better performance due to reduced indirection. It's best to profile your specific application to see the impact.