private static object DefaultValueForCorlibType (Type t)
{
object res = false;
if (t == typeof (string))
res = String.Empty;
else if (t == typeof (int))
res = 0;
else if (t == typeof (double))
res = 0.0;
else if (t == typeof (bool))
res = false;
if (res != null)
res = new MutableObject (res);
return res;
}
private object InstantiateType (Type type)
{
object o;
if (IsTopElement && HydrateObject != null) {
if (!type.IsAssignableFrom (HydrateObject.GetType ()))
throw ParseException ("Invalid top-level element found {0}, expecting {1}", type, HydrateObject.GetType ());
return HydrateObject;
}
// Returns null if the type isn't a collection type.
o = InstantiateCollectionType (type);
if (o == null && HasDefaultConstructor (type))
o = Activator.CreateInstance (type);
if (o == null && IsSpecialInternalType (type))
{
o = Activator.CreateInstance (type,
BindingFlags.CreateInstance | BindingFlags.NonPublic |
BindingFlags.Instance | BindingFlags.OptionalParamBinding,
null, new object[] {}, null);
}
if (o == null && IsLegalCorlibType (type))
o = DefaultValueForCorlibType (type);
if (o == null && IsLegalStructType (type))
o = DefaultValueForStructType (type);
if (o == null && IsSpecialCasedType (type))
o = DefaultValueForSpecialCasedType (type);
// If an object does not have a content property, we can use
// a class level type converter to generate an object of this type
if (!(o is MutableObject) && IsTypeConvertedType (type))
o = new MutableObject (o);
return o;
}