summaryrefslogtreecommitdiff
path: root/node_modules/blake3-wasm/esm/node-native/hash-instance.js
diff options
context:
space:
mode:
Diffstat (limited to 'node_modules/blake3-wasm/esm/node-native/hash-instance.js')
-rw-r--r--node_modules/blake3-wasm/esm/node-native/hash-instance.js26
1 files changed, 26 insertions, 0 deletions
diff --git a/node_modules/blake3-wasm/esm/node-native/hash-instance.js b/node_modules/blake3-wasm/esm/node-native/hash-instance.js
new file mode 100644
index 0000000..86da52d
--- /dev/null
+++ b/node_modules/blake3-wasm/esm/node-native/hash-instance.js
@@ -0,0 +1,26 @@
+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);
+//# sourceMappingURL=hash-instance.js.map \ No newline at end of file