Fixes to run with dart2js

CHANGELOG.md

@@ -1,3 +1,8 @@
+
+## 0.2.1
+
+- Fixes to run with dart2js (see https://github.com/dart-lang/sdk/issues/46417)
+
 ## 0.2.0
 
 - Null safety

lib/src/deep_immutable.dart

@@ -82,7 +82,8 @@ dynamic toDeepImmutable(dynamic input,
     return _DeepImmutableSet(input.cast(), isDeepImmutable: isDeepImmutable);
   }
   if (input is Iterable) {
-    return _DeepImmutableList(input.cast() as List<dynamic>, isDeepImmutable: isDeepImmutable);
+    return _DeepImmutableList(input.cast() as List<dynamic>,
+        isDeepImmutable: isDeepImmutable);
   }
   if (input is Map) {
     return _DeepImmutableMap(input.cast(), isDeepImmutable: isDeepImmutable);
@@ -109,8 +110,9 @@ class _DeepImmutableMap extends UnmodifiableMapView<String, dynamic>
     implements DeepImmutable {
   _DeepImmutableMap(Map<String, dynamic> map,
       {bool Function(dynamic)? isDeepImmutable})
-      : super(Map<String, dynamic>.unmodifiable(map.map((k, v) =>
-            MapEntry<String, dynamic>(
+      : super(Map<String,
+                dynamic>.from /*.unmodifiable instead of .from causes an error in web environment: see https://github.com/dart-lang/sdk/issues/46417 */
+            (map.map((k, v) => MapEntry<String, dynamic>(
                 k, toDeepImmutable(v, isDeepImmutable: isDeepImmutable)))));
 }
 

pubspec.yaml

@@ -1,6 +1,6 @@
 name: snapshot
 description: A library that can be used to implement data classes and simplifies conversion of JSON to data classes
-version: 0.2.0
+version: 0.2.1
 homepage: https://github.com/appsup-dart/snapshot
 
 environment:

test/deep_immutable_test.dart

@@ -1,6 +1,10 @@
+import 'dart:io';
+
 import 'package:snapshot/src/deep_immutable.dart';
 import 'package:test/test.dart';
 
+const bool kIsWeb = identical(0, 0.0);
+
 void main() {
   group('toDeepImmutable', () {
     test('Literal types should not be changed', () {
@@ -30,7 +34,12 @@ void main() {
         MyUri(Uri.parse('https://pub.dev')),
         MyRegExp(r'.*'),
       ]) {
-        expect(toDeepImmutable(v), v.delegateTo);
+        if (v is MyRegExp && kIsWeb) {
+          // on web, RegExp instances are not equal even when their properties are the same
+          expect(v.pattern, v.delegateTo.pattern);
+        } else {
+          expect(toDeepImmutable(v), v.delegateTo);
+        }
         expect(toDeepImmutable(v), isNot(isA<DelegatesTo>()));
       }
     });

test/snapshot_test.dart

@@ -1,3 +1,5 @@
+import 'dart:collection';
+
 import 'package:intl/intl.dart';
 import 'package:snapshot/snapshot.dart';
 import 'package:test/test.dart';
@@ -109,7 +111,7 @@ void main() {
       test('Should return null when content is null and type is nullable', () {
         var s = Snapshot.fromJson(null);
 
-        expect(s.as<String? >(), null);
+        expect(s.as<String?>(), null);
         expect(s.as<dynamic>(), null);
       });
 
@@ -118,7 +120,7 @@ void main() {
           () {
         var s = Snapshot.fromJson({'street': 'Mainstreet'},
             decoder: decoderWithAddress);
-        expect(s.as<Address>(), same(s.as<Address? >()));
+        expect(s.as<Address>(), same(s.as<Address?>()));
       });
     });
 
@@ -363,6 +365,16 @@ void main() {
                 createParents: false),
             throwsArgumentError);
       });
+
+      test('Setting a null value', () {
+        var person = Snapshot.empty()
+            .setPath('firstname', 'Jane')
+            .setPath('address', null)
+            .setPath('lastname', 'Doe');
+
+        expect(person.value,
+            {'firstname': 'Jane', 'address': null, 'lastname': 'Doe'});
+      });
     });
 
     group('Snapshot.withDecoder()', () {