fix: implicit tslib dependency

Author: jeanlescure

rollup.config.js

@@ -48,6 +48,7 @@ const config = {
     ...Object.keys(pkg.devDependencies),
     'crypto',
     'buffer',
+    'tslib',
   ],
 };
 

src/index.ts

@@ -30,10 +30,11 @@ class StringCrypto {
       salt,
       iterations,
       digest,
-    } = {
-      ...StringCrypto.defaultDeriveKeyOpts,
-      ...options,
-    };
+    } = Object.assign(
+      {},
+      StringCrypto.defaultDeriveKeyOpts,
+      options,
+    );
 
     return pbkdf2Sync(password, salt, iterations, KEYLEN, digest);
   };

tsconfig.json

@@ -9,6 +9,7 @@
     "target": "ES5",
     "lib": ["ESNext"],
     "moduleResolution": "node",
+    "noEmitHelpers": true,
     "sourceMap": true,
     "pretty": true,
     "esModuleInterop": true,