std​::ops

Traits

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Trait std::ops::Drop[src]

pub trait Drop {
    fn drop(&mut self);
}

The Drop trait is used to run some code when a value goes out of scope. This is sometimes called a 'destructor'.

Example

A trivial implementation of Drop. The drop method is called when _x goes out of scope, and therefore main prints Dropping!.

struct HasDrop; impl Drop for HasDrop { fn drop(&mut self) { println!("Dropping!"); } } fn main() { let _x = HasDrop; }
struct HasDrop;

impl Drop for HasDrop {
  fn drop(&mut self) {
      println!("Dropping!");
  }
}

fn main() {
  let _x = HasDrop;
}

Required Methods

fn drop(&mut self)

The drop method, called when the value goes out of scope.

Implementors