Crate borrow_bag

A type-safe, heterogeneous collection with zero-cost add and borrow.

BorrowBag allows the storage of any value, and returns a Handle which can be used to borrow the value back later. As the BorrowBag is add-only, Handle values remain valid for the lifetime of the BorrowBag.

Structs

• BorrowBag
  BorrowBag allows the storage of any value using add(T), and returns a Handle which can be used to borrow the value back later. As the BorrowBag is add-only, Handle values remain valid for the lifetime of the BorrowBag.
• Handle
  A value which can be used with the BorrowBag to borrow the element which was added.

Traits

• Append
  Describes the result of appending T to the borrow-bag. This is useful in specifying the return type when creating/modifying a BorrowBag in a function.
• Lookup
  Allows borrowing a value of type T from the implementing type. This can be used to constrain a Handle argument to ensure it can be used with the corresponding BorrowBag.