• I have searched open and closed issues and pull requests for duplicates, using these search terms:
  • pub struct Config
• I have checked the latest main branch to see if this has already been fixed, in this file:
  • /listings/ch12-an-io-project/listing-12-22/src/main.rs

URL to the section(s) of the book with this problem:
Just above https://doc.rust-lang.org/book/ch12-05-working-with-environment-variables.html#listing-12-22

Description of the problem:
In Chapter 12.3 we created the Config struct:

struct Config {
    query: String,
    file_path: String,
}

But in Chapter 12.5 we go back to make changes to this struct, and this time we make it public for no apparent reason:

pub struct Config {
    pub query: String,
    pub file_path: String,
    pub ignore_case: bool,
}

This is probably bad practice (I think), but more importantly, it's confusing because it's an unexplained change from a previous state.

Suggested fix:
Make struct Config private in Listing 12-22 and all following listings.

Am I missing some reason for this change?