The provided content is a comprehensive guide to using the core libraries and constructs in Midnight (likely a blockchain or smart contract platform) for building secure, efficient, and feature-rich smart contracts. Below is an organized summary of the key components and their purposes:
1. Generic Types
- Maybe<T>: Represents optional values, similar to
Optionin Rust orNullablein C#. It's used when a value might be absent. - Either<L, R>: A type that can hold one of two types (
LeftorRight). Often used for error handling where the left side represents an error and the right side represents success.
2. Merkle Trees
- MerkleTree<N, T>: An on-chain data structure that allows you to store a fixed-size indexable collection of items (type
T) with a Merkle root hash for integrity verification.- N is the number of bits used in the tree's indexing mechanism.
- T represents the type of values stored in the leaves.
3. Commitment Functions
- persistentCommit: Creates a commitment that can be verified later using
verifyCommitment.
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