Move Semantics in Rust: What Just Happened to My Variable?

Move Semantics in Rust: What Just Happened to My Variable?

Okay, so picture this: you’re cruising along in your nice, type-safe Rust code, and suddenly… your variable vanishes.

Not literally, of course. But the compiler throws a fit, and you’re left staring at an error that says something like:
“value borrowed here after move”.

Wait, move?

Welcome to move semantics, Rust’s very opinionated way of managing memory and keeping you from accidentally using things that don’t belong to you anymore.

Today’s post is a follow-up to yesterday’s crash course in ownership and this one might sting a little at first if you’re coming from the comfy world of .NET’s reference types. But stick with me. It’s about to make sense.