Is it possible to define structures at runtime or otherwise achieve a similar effect?

Question

I want to create a function (for a library) that will output a structure for any CSV that contains all the columns and their data. This means that column names (unless explicitly specified by the user) will not be known until runtime.

Can I create a structure definition at run time or modify an existing structure? If so, how?

For example, how can I mutate the following structure structure:

struct Point {
    x: String,
    y: String,
}

To the following (only in memory):

struct Point {
    x: String,
    y: String,
    z: String,
}

This behavior is possible in languages ​​like Python, but I'm not sure if this is possible in compiled languages ​​like Rust.

Answer 1

No, It is Immpossible.

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