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Structs and Implementation Blocks in Rust

A struct groups several related values into one named thing, and an implementation block attaches functions to that thing. Together they let you say "this is one device, and here is everything you can do with it" instead of passing six loose variables around. Almost every piece of state a driver keeps lives in a struct you define.

Questions this Concept answers

Why does a driver keep its state in one struct instead of several loose variables?

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Implementing Instance and Static Methods on Structs in Rust

In Rust, behaviors are attached to a user-defined struct type through an `impl` block, which defines "associated functions" that are either instance methods (bound to a particular value of the type v…