refactor: migrate ffigen configs to Dart and upgrade to ^21.0.0

CHANGELOG.md

@@ -1,6 +1,7 @@
 # 0.6.2-wip
 * Fixed JS interop to enable WebAssembly.
 * Fixed native RSA public-key JWK imports to reject private key material.
+* Upgrade `ffigen` and `hooks` versions.
 
 # 0.6.1
 * Added Dart native build hooks and native asset lookup for the bundled

example/webcrypto_demo_flutter_app/lib/main.dart

@@ -24,11 +24,13 @@ void main() {
 }
 
 class MyApp extends StatefulWidget {
+  const MyApp({super.key});
+
   @override
-  _MyAppState createState() => _MyAppState();
+  MyAppState createState() => MyAppState();
 }
 
-class _MyAppState extends State<MyApp> {
+class MyAppState extends State<MyApp> {
   String _output = '-';
   final _input = TextEditingController();
 
@@ -37,29 +39,31 @@ class _MyAppState extends State<MyApp> {
     return MaterialApp(
       home: Scaffold(
         appBar: AppBar(title: const Text('SHA-1 Hashing')),
-        body: Container(
-          padding: EdgeInsets.all(10),
-          child: Column(
-            children: [
-              Text(
-                'Compute SHA-1 hash of input below.\n\n'
-                'Click the button to refresh the computed output.'
-                'Output will be displayed in hexadecimal encoding.',
-              ),
-              Text(
-                'input',
-                textScaleFactor: 1.2,
-                style: TextStyle(fontWeight: FontWeight.bold),
-              ),
-              _textEntry(),
-              SizedBox(height: 50),
-              Text(
-                'output',
-                textScaleFactor: 1.2,
-                style: TextStyle(fontWeight: FontWeight.bold),
-              ),
-              Text('$_output'),
-            ],
+        body: SingleChildScrollView(
+          child: Container(
+            padding: EdgeInsets.all(10),
+            child: Column(
+              children: [
+                Text(
+                  'Compute SHA-1 hash of input below.\n\n'
+                  'Click the button to refresh the computed output.'
+                  'Output will be displayed in hexadecimal encoding.',
+                ),
+                Text(
+                  'input',
+                  textScaler: TextScaler.linear(1.2),
+                  style: TextStyle(fontWeight: FontWeight.bold),
+                ),
+                _textEntry(),
+                SizedBox(height: 20),
+                Text(
+                  'output',
+                  textScaler: TextScaler.linear(1.2),
+                  style: TextStyle(fontWeight: FontWeight.bold),
+                ),
+                Text(_output),
+              ],
+            ),
           ),
         ),
       ),

lib/src/boringssl/bindings/generated_bindings.dart

@@ -18,12 +18,12 @@
 // AUTO GENERATED FILE, DO NOT EDIT.
 //
 // Generated by `package:ffigen`.
-// ignore_for_file: type=lint
+// ignore_for_file: type=lint, unused_import, deprecated_member_use_from_same_package
+@ffi.DefaultAsset('package:webcrypto/webcrypto.dart')
+library;
+
 import 'dart:ffi' as ffi;
 
 /// Helper function to get the size of CBB structure for FFI allocation.
-@ffi.Native<ffi.Size Function()>(
-  symbol: 'webcrypto_get_CBB_size',
-  assetId: 'package:webcrypto/webcrypto.dart',
-)
+@ffi.Native<ffi.Size Function()>()
 external int webcrypto_get_CBB_size();