Advanced Rust

Unsafe Rust

Unsafe Superpowers

• Dereference a raw pointer

  • raw pointers can be immutable or mutable and are written as *const T and *mut T, respectively

• Call an unsafe function or method

  • unsafe function has requirements we need to uphold and Rust can’t guarantee we’ve met these requirements

      unsafe fn dangerous() {} // unsafe function
  
      unsafe {
          dangerous();         // usage
      }
  

• Access or modify a mutable static variable

• Implement an unsafe trait

• Access fields of unions

Advanced Traits

Placeholder Types

Traits Overloading

Supertrait

Advanced Types

Newtype Pattern