Rust Borrow Checker

Definitions

1. The component of the Rust compiler that enforces ownership and borrowing rules at compile time: a value can have either one mutable reference or any number of immutable references at a time, and references must never outlive the data they point to. This eliminates data races, use-after-free, and dangling pointers without a garbage collector.

   In plain English: A strict part of the Rust compiler that prevents memory bugs by ensuring no two parts of your code modify the same data at the same time.

   Example: "The borrow checker rejected my code because I tried to mutate the vector while iterating over it — had to clone or restructure the loop."

Related Terms

• Borrowing
• Lifetime
• Ownership
• Unsafe
• Stack Canary
• Monomorphization
• Newtype
• Rust Lifetime
• Rust Unsafe
• Stack Unwinding
• Waker