public void Non_Required_Value_Types_Are_Created_As_Nullable_Properties()
{
var attr = new XomNodeAttribute { Name = "attr1", Type = typeof(int), IsRequired = false};
var type = XomAttributeTypeGenerator.GenerateType(new[] {attr}, "Test");
var properties = type.GetProperties();
Assert.IsTrue(properties[0].PropertyType == typeof(int?));
}
public void Can_Specify_Name_For_Generated_Type()
{
var name = "TestName";
var attr1 = new XomNodeAttribute { Name = "attr1", Type = typeof(string) };
Type type = XomAttributeTypeGenerator.GenerateType(new[] {attr1}, name);
Assert.AreEqual(name, type.Name, "Type's name was incorrect");
}
public void Can_Generate_Class_Based_On_Xom_Attributes()
{
var attr1 = new XomNodeAttribute {Name = "attr1", Type = typeof (string)};
var attr2 = new XomNodeAttribute {Name = "attr2", Type = typeof (int), IsRequired = true};
Type type = XomAttributeTypeGenerator.GenerateType(new[] {attr1, attr2}, "TestName");
Assert.IsNotNull(type, "Returned type was null");
var properties = type.GetProperties();
Assert.AreEqual(2, properties.Length, "Incorrect number of properties returned");
Assert.IsTrue(properties.Any(x => x.PropertyType == typeof(string) && x.Name == attr1.Name), "No string property exists with the name attr1");
Assert.IsTrue(properties.Any(x => x.PropertyType == typeof(int) && x.Name == attr2.Name), "No int property exists with the name attr2");
}
private static void CreateProperty(TypeBuilder typeBuilder, XomNodeAttribute attribute)
{
var attributeType = attribute.Type;
if (attributeType.IsValueType && !attribute.IsRequired)
attributeType = typeof (Nullable<>).MakeGenericType(attributeType);
var fieldBuilder = typeBuilder.DefineField("_" + attribute.Name, attributeType, FieldAttributes.Private);
var propertyBuilder = typeBuilder.DefineProperty(attribute.Name, PropertyAttributes.HasDefault,
attributeType, null);
var getPropMthdBldr = typeBuilder.DefineMethod("get_" + attribute.Name,
MethodAttributes.Public | MethodAttributes.SpecialName |
MethodAttributes.HideBySig, attributeType, Type.EmptyTypes);
var getIl = getPropMthdBldr.GetILGenerator();
getIl.Emit(OpCodes.Ldarg_0);
getIl.Emit(OpCodes.Ldfld, fieldBuilder);
getIl.Emit(OpCodes.Ret);
MethodBuilder setPropMthdBldr =
typeBuilder.DefineMethod("set_" + attribute.Name,
MethodAttributes.Public |
MethodAttributes.SpecialName |
MethodAttributes.HideBySig,
null, new[] { attributeType });
ILGenerator setIl = setPropMthdBldr.GetILGenerator();
Label modifyProperty = setIl.DefineLabel();
Label exitSet = setIl.DefineLabel();
setIl.MarkLabel(modifyProperty);
setIl.Emit(OpCodes.Ldarg_0);
setIl.Emit(OpCodes.Ldarg_1);
setIl.Emit(OpCodes.Stfld, fieldBuilder);
setIl.Emit(OpCodes.Nop);
setIl.MarkLabel(exitSet);
setIl.Emit(OpCodes.Ret);
propertyBuilder.SetGetMethod(getPropMthdBldr);
propertyBuilder.SetSetMethod(setPropMthdBldr);
}
public void Null_Name_Creates_Guid_Type_Name()
{
var attr1 = new XomNodeAttribute { Name = "attr1", Type = typeof(string) };
var type = XomAttributeTypeGenerator.GenerateType(new[] { attr1 }, null);
Guid.Parse(type.Name);
}