Crate len_trait

This crate generalises traits over the len and capacity methods found in most collections.

Methods that are included:

• capacity
• clear
• is_empty
• len
• reserve_exact
• reserve
• shrink_to_fit
• split_at_mut
• split_at
• split_off
• truncate
• with_capacity

Additionally, the traits IndexRanges<Idx> and IndexRangesMut<Idx> are provided for "consistent slicing," i.e. slicing over all range types.

Modules

The len module provides:

• LenMut, which requires Clear
• Clear, which requires Len
• Len, which requires Empty
• Empty

The capacity module provides:

• CapacityMut, which requires WithCapacity
• WithCapacity, which requires Capacity
• Capacity, which requires Len.

The index module provides:

• IndexRanges<Idx>, automatically implemented from Index<Idx>
• IndexRangesMut<Idx>, automatically implemented from IndexMut<Idx>
• SplitAt<Idx>, which requires IndexRanges<Idx>
• SplitAtMut<Idx>, which requires IndexRangesMut<Idx>

Trait table

type	len	capacity	index
String	LenMut	CapacityMut	X
VecDeque	LenMut	CapacityMut	X
Vec	LenMut	CapacityMut	X
BinaryHeap	Clear	CapacityMut	X
BitSet	Clear	CapacityMut	X
BitVec	Clear	CapacityMut	X
HashMap	Clear	CapacityMut	X
HashSet	Clear	CapacityMut	X
IntervalHeap	Clear	CapacityMut	X
LinearMap	Clear	CapacityMut	X
LinkedHashMap	Clear	CapacityMut	X
OsString	Clear	CapacityMut	X
VecMap	Clear	CapacityMut	X
BList	Clear	X	X
BTreeMap	Clear	X	X
BTreeSet	Clear	X	X
EnumSet	Clear	X	X
LinkedList	Clear	X	X
LruCache	Clear	X	X
[T]	Len	X	SplitAtMut
str	Len	X	SplitAtMut
CStr	Len	X	X
CString	Len	X	X
OsStr	Len	X	X

Reexports

pub use capacity::*;

pub use index::*;

pub use len::*;

Modules

capacity	Traits involving the capacity of a collection.
index	Traits involving collections which index over a particular type.
len	Traits involving the length of a collection.