Release 0.2.3

lib/src/type_helpers/value_helper.dart

@@ -23,7 +23,7 @@ class ValueHelper extends TypeHelper {
       return expression;
     } else if (const TypeChecker.fromRuntime(double)
         .isExactlyType(targetType)) {
-      return '($expression as num).toDouble()';
+      return '($expression as num)${nullable ? '?' : ''}.toDouble()';
     } else if (simpleJsonTypeChecker.isAssignableFromType(targetType)) {
       return '$expression as $targetType';
     }

pubspec.yaml

@@ -1,5 +1,5 @@
 name: json_serializable
-version: 0.2.3-dev
+version: 0.2.3
 author: Dart Team <misc@dartlang.org>
 description: Generates utilities to aid in serializing to/from JSON.
 homepage: https://github.com/dart-lang/json_serializable

test/json_serializable_integration_test.dart

@@ -114,12 +114,14 @@ void main() {
       roundTripNumber(new Numbers()
         ..nums = [0, 0.0]
         ..doubles = [0.0]
+        ..nnDoubles = [0.0]
         ..ints = [0]);
     });
 
     test('support ints as doubles', () {
       var value = {
-        'doubles': [0, 0.0]
+        'doubles': [0, 0.0, null],
+        'nnDoubles': [0, 0.0]
       };
 
       roundTripNumber(new Numbers.fromJson(value));

test/test_files/json_test_example.dart

@@ -109,6 +109,9 @@ class Numbers extends Object with _$NumbersSerializerMixin {
   List<num> nums;
   List<double> doubles;
 
+  @JsonKey(nullable: false)
+  List<double> nnDoubles;
+
   Numbers();
 
   factory Numbers.fromJson(Map<String, dynamic> json) =>
@@ -118,5 +121,6 @@ class Numbers extends Object with _$NumbersSerializerMixin {
       other is Numbers &&
       _deepEquals(ints, other.ints) &&
       _deepEquals(nums, other.nums) &&
-      _deepEquals(doubles, other.doubles);
+      _deepEquals(doubles, other.doubles) &&
+      _deepEquals(nnDoubles, other.nnDoubles);
 }