Memory Management in Rust
Memory management in Rust is a mix:
- Safe and correct like Java, but without a garbage collector.
- Scope-based like C++, but the compiler enforces full adherence.
- A Rust user can choose the right abstraction for the situation, some even have no cost at runtime like C.
Rust achieves this by modeling ownership explicitly.
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If asked how at this point, you can mention that in Rust this is usually handled by RAII wrapper types such as Box, Vec, Rc, or Arc. These encapsulate ownership and memory allocation via various means, and prevent the potential errors in C.
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You may be asked about destructors here, the Drop trait is the Rust equivalent.