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Comment by afdbcreid

6 hours ago

That means those are probably builders and not setters. Do they change an existing object or a newly-constructed or to-be-constructed object?

They are setters. They modify an element after instantiation. Mostly as part of the initial build, but then also in the event closure. Under the hood, a struct with interiorly mutable fields.

  • This sounds a lot like a builder but the line can be blurry. For a Rust stdlib example, the `process::Command` type is considered a builder even though it is not named "CommandBuilder", and the final operation is spawning a subprocess, not returning some other data.

  • Gotcha, so in your case, users of the library will set values much more often than read them (since the reading will be done by the TUI framework for display).