Crate tree_index

tree-index

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Stateful tree index. Or well, stateful flat-tree. It's what happens when you combine a flat-tree with a sparse-bitfield - which ends up being pretty cool!

Adapted from mafintosh/hypercore/lib/tree-index.js.

• Documentation
• Crates.io

Usage

extern crate sparse_bitfield as bitfield;
extern crate tree_index;

use tree_index::TreeIndex;
use self::bitfield::{Bitfield, Change};

let bitfield = Bitfield::new(1024);
let mut tree = TreeIndex::new(bitfield);
assert_eq!(tree.set(0), Change::Changed);
assert_eq!(tree.set(0), Change::Unchanged);
assert_eq!(tree.get(0), true);
assert_eq!(tree.get(1), false);

Installation

$ cargo add tree-index

License

MIT OR Apache-2.0

Structs

Bitfield	Bitfield instance.
Proof	A merkle proof for an index.
TreeIndex	Index a tree structure or something.
Verification	Returned by .verified_by().

Enums

Change

Determine wether the bitfield.set() method changed the underlying value.