Combining struct literal syntax with read-only field access

Recently, I found myself struggling with a small annoyance related to struct field visibility and struct initialization in Rust. It’s no rocket science, but I thought about it long enough that I might as well turn it into a blog post. In HyperQueue, we have a struct describing parameters of a queue (for the purpose of this post, it doesn’t really matter what a queue is), which contains a bunch of