Ask about Golang Behavior

[febriananda pramudita]

I was playing with protobuf marshaller recently and found this behavior

https://gist.github.com/FwP-pintu/448f8ecddf27987a7e5b8a103eda12cb

Is behavior: "nil slice with more than 0 capacity" is intended? Thank you.

[Tamás Gulácsi]

You should print cap(newMessage.Biawaks).

A nil slice cannot have non-zero capacity.

A nil slice and a zero-length slice is semantically equivalent.

[Brian Candler]

On Monday, 20 March 2023 at 16:15:28 UTC Tamás Gulácsi wrote:

You should print cap(newMessage.Biawaks).

Good catch on that typo :-)

FWIW, here it is as a playground link: https://go.dev/play/p/CHaW3lMutXN

[jake...@gmail.com]

You have:

fmt.Println("AFTER:", newMessage.Biawaks == nil, cap(message.Biawaks))

Did you mean:

fmt.Println("AFTER:", newMessage.Biawaks == nil, cap( newMessage.Biawaks))

If so, then