sqlite: add DatabaseSync.prototype[Symbol.dispose]()

doc/api/sqlite.md

@@ -291,6 +291,17 @@ targetDb.applyChangeset(changeset);
 // Now that the changeset has been applied, targetDb contains the same data as sourceDb.
 ```
 
+### `database[Symbol.dispose]()`
+
+<!-- YAML
+added: REPLACEME
+-->
+
+> Stability: 1 - Experimental
+
+Closes the database connection. If the database connection is already closed
+then this is a no-op.
+
 ## Class: `Session`
 
 <!-- YAML

lib/sqlite.js

@@ -1,5 +1,19 @@
 'use strict';
+const {
+  SymbolDispose,
+} = primordials;
 const { emitExperimentalWarning } = require('internal/util');
+const binding = internalBinding('sqlite');
 
 emitExperimentalWarning('SQLite');
-module.exports = internalBinding('sqlite');
+
+// TODO(cjihrig): Move this to C++ once Symbol.dispose reaches Stage 4.
+binding.DatabaseSync.prototype[SymbolDispose] = function() {
+  try {
+    this.close();
+  } catch {
+    // Ignore errors.
+  }
+};
+
+module.exports = binding;

test/parallel/test-sqlite-database-sync-dispose.js

@@ -0,0 +1,32 @@
+'use strict';
+require('../common');
+const tmpdir = require('../common/tmpdir');
+const assert = require('node:assert');
+const { join } = require('node:path');
+const { DatabaseSync } = require('node:sqlite');
+const { suite, test } = require('node:test');
+let cnt = 0;
+
+tmpdir.refresh();
+
+function nextDb() {
+  return join(tmpdir.path, `database-${cnt++}.db`);
+}
+
+suite('DatabaseSync.prototype[Symbol.dispose]()', () => {
+  test('closes an open database', () => {
+    const db = new DatabaseSync(nextDb());
+    db[Symbol.dispose]();
+    assert.throws(() => {
+      db.close();
+    }, /database is not open/);
+  });
+
+  test('supports databases that are not open', () => {
+    const db = new DatabaseSync(nextDb(), { open: false });
+    db[Symbol.dispose]();
+    assert.throws(() => {
+      db.close();
+    }, /database is not open/);
+  });
+});