pub trait Collection<Item>: IntoIterator<Item = Item> + Indexable<Item> { }Expand description
A generic iterable, indexable sequence supporting deterministic traversal.
This trait captures the minimal capabilities required for iteration and positional access without assuming construction or mutation.
§Capabilities:
IntoIterator: Enables deterministic iteration over contained values.Indexable: Provides direct indexed and range-based access to elements.
§Design Notes:
- Represents read-only traversal + positional access semantics.
- Does not assume the ability to construct or mutate the sequence.
- Compatible with both fixed-size and dynamic containers.
- Enables algorithms that require both iteration and indexing.
§Supported Types:
- Fixed-size arrays (e.g.
[T; N]) - Dynamic collections (e.g.
Vec<T>,VecDeque,BoundedVec)
§Usage:
Use this trait when:
- iteration and indexed access are required,
- no assumptions about construction or mutation should be made.
For construction and mutation, see Growable.