immutability – Tarik Billa

How can I force a struct’s field to always be immutable in Rust?

December 3, 2023 by Tarik

It’s impossible to have immutability of a single field. That was an option in an ancient version of Rust (think before 0.8), but it was dropped because the rules confused a LOT of people. How was it confusing, you might ask? Think about it like this: if a field is declared mutable and struct is … Read more

Are Elixir variables really immutable?

February 7, 2023 by Tarik

Don’t think of “variables” in Elixir as variables in imperative languages, “spaces for values”. Rather look at them as “labels for values”. Maybe you would better understand it when you look at how variables (“labels”) work in Erlang. Whenever you bind a “label” to a value, it remains bound to it forever (scope rules apply … Read more

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