ImageProcess/node_modules/blake3-wasm/esm/node-native/hash-instance.js

import native from './native.js';
import { NodeHash } from '../node/hash-instance.js';
import { NodeHashReader } from '../node/hash-reader.js';
// A buffer we reuse for sending bigints. set_position is synchronous, so
// this just saves creating garbage.
const bigIntBuffer = Buffer.alloc(8);
const readerFactory = (r) => new NodeHashReader({
    fill: target => r.fill(target),
    set_position: position => {
        bigIntBuffer.writeBigUInt64BE(position);
        r.set_position(bigIntBuffer);
    },
});
/**
 * A Node.js crypto-like createHash method.
 */
export const createHash = () => new NodeHash(new native.Hasher(), readerFactory);
/**
 * Construct a new Hasher for the keyed hash function.
 */
export const createKeyed = (key) => new NodeHash(new native.Hasher(key), readerFactory);
/**
 * Construct a new Hasher for the key derivation function.
 */
export const createDeriveKey = (context) => new NodeHash(new native.Hasher(undefined, context), readerFactory);
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