public EnumerationData(Type itemType)
{
EnumerableType = typeof(IEnumerable <>).MakeGenericType(itemType);
EnumeratorType = typeof(IEnumerator <>).MakeGenericType(itemType);
GetEnumerator = EnumerableType.GetMethod("GetEnumerator", new Type[0]);
Current = EnumeratorType.GetProperty("Current");
}
private GenericCollectionInfo(Type collectionType, Type elementType, ConstructorInfo constructor)
{
CollectionType = collectionType;
ElementType = elementType;
Constructor = constructor;
_countPropertyLazy = new Lazy <MethodInfo>(() => CollectionType.GetProperty("Count").GetMethod);
_addMethodLazy = new Lazy <MethodInfo>(() => CollectionType.GetMethod("Add", new Type[] { elementType }));
_getEnumeratorMethodLazy = new Lazy <MethodInfo>(() => CollectionType.GetMethod("GetEnumerator"));
_enumeratorMoveNextMethodLazy = new Lazy <MethodInfo>(() => EnumeratorType.GetMethod("MoveNext"));
_enumeratorCurrentPropertyLazy = new Lazy <MethodInfo>(() => EnumeratorType.GetProperty("Current").GetMethod);
}