#282 fix NullReferenceException for null public arrays

XmlSchemaClassGenerator.Tests/XmlTests.cs

@@ -2208,6 +2208,46 @@ public void TestArrayOfMsTypeGeneration()
  //Assert.NotEmpty((System.Collections.IEnumerable)deserialized.D); //<== oops
  }
 
+ [Fact]
+ public void TestArrayOfStringsWhenPublicAndNull()
+ {
+ // see https://github.com/mganss/XmlSchemaClassGenerator/issues/282
+
+ // arrange
+ var xsd =
+ @"<xs:schema xmlns:xs=""http://www.w3.org/2001/XMLSchema"" xmlns:tns=""http://schemas.microsoft.com/2003/10/Serialization/Arrays"">
+ <xs:complexType name=""ArrayOfstring"">
+ <xs:sequence>
+ <xs:element name=""testString"" type=""xs:string"" minOccurs=""0"" maxOccurs=""unbounded""/>
+ </xs:sequence>
+ </xs:complexType>
+ </xs:schema>
+ ";
+ var validXml =
+ @"<ArrayOfstring xmlns:tns=""http://schemas.microsoft.com/2003/10/Serialization/Arrays"">
+ </ArrayOfstring>
+ ";
+ var generator = new Generator
+ {
+ IntegerDataType = typeof(int),
+ NamespacePrefix = "Test_NS1",
+ GenerateNullables = true,
+ CollectionType = typeof(System.Array),
+ CollectionSettersMode = CollectionSettersMode.Public
+ };
+ var contents = ConvertXml(nameof(TestArrayOfStringsWhenPublicAndNull), new[] { xsd }, generator).ToArray();
+ var assembly = Compiler.Compile(nameof(TestForceIsNullableGeneration), contents);
+ var testType = assembly.GetType("Test_NS1.ArrayOfstring");
+ Assert.NotNull(testType);
+ var serializer = new XmlSerializer(testType);
+
+ // act
+ dynamic deserialized = serializer.Deserialize(new StringReader(validXml));
+
+ // assert
+ var xml = Serialize(serializer, deserialized);
+ }
+
  [Fact, TestPriority(1)]
  public void AirspaceServicesTest1()
  {

XmlSchemaClassGenerator/TypeModel.cs

@@ -1076,7 +1076,7 @@ public void AddMembersTo(CodeTypeDeclaration typeDeclaration, bool withDataBindi
  var countProperty = collectionType == typeof(System.Array) ? "Length" : "Count";
  var countReference = new CodePropertyReferenceExpression(listReference, countProperty);
  var notZeroExpression = new CodeBinaryOperatorExpression(countReference, CodeBinaryOperatorType.IdentityInequality, new CodePrimitiveExpression(0));
- if (Configuration.CollectionSettersMode == CollectionSettersMode.PublicWithoutConstructorInitialization)
+ if (Configuration.CollectionSettersMode is CollectionSettersMode.PublicWithoutConstructorInitialization or CollectionSettersMode.Public)
  {
  var notNullExpression = new CodeBinaryOperatorExpression(listReference, CodeBinaryOperatorType.IdentityInequality, new CodePrimitiveExpression(null));
  notZeroExpression = new CodeBinaryOperatorExpression(notNullExpression, CodeBinaryOperatorType.BooleanAnd, notZeroExpression);