v0.16.0

Release Notes

Added

• Added MaxSize trait to expose static maximum capacity from collection types.
• Added RemainingSize trait (with remaining_size method) to expose dynamic remaining capacity from collection types.
• Added RemainingSize and MaxSize implementations for ArrayVec and Array.
• Added Debug implementations for CollectionErrorData, ResultCollectionErrorData, and UnzipErrorData.
• TryFromIterator implementations for hash-based collections (HashMap, HashSet, IndexMap, IndexSet, and hashbrown variants) now support custom hashers via the S: BuildHasher + Default bound.

Changed

• Breaking: Renamed Capacity trait to RemainingSize and its capacity_hint method to remaining_size.
  • Migration: Update all references from Capacity to RemainingSize and from capacity_hint() to remaining_size().
• Breaking: Changed ArrayVec::try_extend_one to return crate::errors::CapacityError instead of arrayvec::CapacityError.
  • Migration: Update error handling to expect crate::errors::CapacityError.
• Breaking: Changed all hash and set implementations that can take a S (hasher) to require S: BuildHasher + Default instead of using the default hasher (RandomState). This breaks some type-inference.
  • Migration: Specify the hasher type explicitly, e.g. HashMap<K, V, RandomState> or use TryCollectEx.
• Breaking: Changed TryFromIterator for [T; N] to return CollectionError<I::IntoIter, PartialArray<T, N>, CapacityError<T>> instead of Vec<T>.