System::Collections::Generic::ListExt< T > Class Template Reference

generic List class that implements IListWrapper interface More...

#include "list_ext.h"

Inherits System::Collections::Generic::List< T >, and System::Collections::IListWrapper.

Public Types

typedef System::Collections::Generic::ListExt< T > ThisType
 
typedef System::Collections::Generic::List< T > ListType
 
typedef System::BaseTypesInfo< System::ObjectBaseTypes
 
typedef T ValueType
 
typedef List< T > BaseType
 
typedef IList< T > BaseType
 Interface type. More...
 
- Public Types inherited from System::Collections::Generic::List< T >
typedef T ValueType
 This type. More...
 
typedef IList< T > BaseType
 Interface type. More...
 
typedef std::vector< T, ASPOSE_COLLECTION_ALLOCATOR_TYPE > vector_t
 Underlying data type. More...
 
typedef vector_t::iterator iterator
 Iterator type. More...
 
typedef vector_t::const_iterator const_iterator
 Const iterator type. More...
 
typedef vector_t::reverse_iterator reverse_iterator
 Reverse iterator type. More...
 
typedef vector_t::const_reverse_iterator const_reverse_iterator
 Const reverse iterator type. More...
 
typedef SharedPtr< IEnumerable< T > > IEnumerablePtr
 Container holding elements of same type we hold. More...
 
typedef SharedPtr< IEnumerator< T > > IEnumeratorPtr
 Enumerator type. More...
 
- Public Types inherited from System::Object
typedef SmartPtr< Objectptr
 Alias for smart pointer type. More...
 
- Public Types inherited from System::Collections::Generic::IList< T >
typedef ICollection< T > BaseType
 Base type. More...
 
typedef IList< T > ThisType
 This type. More...
 
typedef T ValueType
 Value type. More...
 
- Public Types inherited from System::Collections::Generic::ICollection< T >
typedef T ValueType
 Value type name. More...
 
typedef ICollection< T > ThisType
 Collection type name. More...
 
- Public Types inherited from System::Collections::Generic::IEnumerable< T >
typedef IEnumerator< T > IEnumeratorType
 Enumerator type. More...
 
using ValueType = T
 
using iterator = System::Details::VirtualizedIterator< T >
 Iterator type. More...
 
using const_iterator = System::Details::VirtualizedConstIterator< T >
 Const iterator type. More...
 
using virtualized_iterator = System::Details::VirtualizedIteratorBase< T >
 Inner iterator base type. More...
 
using virtualized_iterator_element = T
 Inner iterator element type. More...
 

Public Member Functions

System::SharedPtr< System::Collections::IListCreateIListWrapper () override
 IListWrapper interface implementation. More...
 
template<typename T1 >
std::enable_if< System::IsSmartPtr< T1 >::value, System::SharedPtr< System::Collections::IList > >::type CreateIListWrapperImpl ()
 IListWrapper implementation helper for reference types. More...
 
template<typename T1 >
std::enable_if<!System::IsSmartPtr< T1 >::value &&System::IsBoxable< T1 >::value, System::SharedPtr< System::Collections::IList > >::type CreateIListWrapperImpl ()
 IListWrapper implementation helper for value types. More...
 
template<typename T1 >
std::enable_if<!System::IsSmartPtr< T1 >::value &&!System::IsBoxable< T >::value, System::SharedPtr< System::Collections::IList > >::type CreateIListWrapperImpl ()
 IListWrapper implementation helper for other types. More...
 
- Public Member Functions inherited from System::Collections::Generic::List< T >
 List ()
 Creates empty list. More...
 
 List (int capacity)
 Creates list with pre-defined capacity. More...
 
 List (IEnumerablePtr collection)
 Copy constructor. More...
 
void AddInitializer (int size, const T inits[])
 Adds elements to list; used when translating initializers. More...
 
iterator begin () noexcept
 Gets iterator to the first element of collection. More...
 
iterator end () noexcept
 Gets iterator for a non-existent element behind the end of the collection. More...
 
const_iterator begin () const noexcept
 Gets iterator to the first element of the const-qualified collection. More...
 
const_iterator end () const noexcept
 Gets iterator for a non-existent element behind the end of the const-qualified collection. More...
 
const_iterator cbegin () const noexcept
 Gets iterator to the first const-qualified element of collection. More...
 
const_iterator cend () const noexcept
 Gets iterator for a non-existent const-qualified element behind the end of the collection. More...
 
reverse_iterator rbegin () noexcept
 Gets a reverse iterator to the last element of collection (first in reverse). More...
 
reverse_iterator rend () noexcept
 Gets a reverse iterator for a non-existent element before the start of the collection. More...
 
const_reverse_iterator rbegin () const noexcept
 Gets a reverse iterator to the last element of the const-qualified collection (first in reverse). More...
 
const_reverse_iterator rend () const noexcept
 Gets a reverse iterator for a non-existent element before the start of the const-qualified collection. More...
 
const_reverse_iterator crbegin () const noexcept
 Gets a reverse iterator to the last const-qualified element of collection (first in reverse). More...
 
const_reverse_iterator crend () const noexcept
 Gets a reverse iterator for a non-existent const-qualified element before the start of the collection. More...
 
IEnumeratorPtr GetEnumerator () override
 Gets enumerator to iterate through list elements. More...
 
int get_Count () const override
 Gets number of elements in current list. More...
 
void Add (const T &item) override
 Adds element to the end of list. More...
 
void Clear () override
 Deletes all elements. More...
 
bool Contains (const T &item) const override
 Checks if item is present in list. More...
 
bool Remove (const T &item) override
 Removes first instance of specific item from list. More...
 
void CopyTo (System::ArrayPtr< T > array, int arrayIndex) override
 Copies list elements into existing array elements. More...
 
int IndexOf (const T &item) const override
 Gets first index of specific item. More...
 
void Insert (int index, const T &item) override
 Inserts item at specified position. More...
 
void RemoveAt (int index) override
 Removes item at specified position. More...
 
idx_get (int index) const override
 Gets element at specific position. More...
 
void idx_set (int index, T value) override
 Sets element at specific position. More...
 
int get_Capacity () const
 Gets current list capacity. More...
 
void set_Capacity (int capacity)
 Sets list capacity. More...
 
void AddRange (IEnumerablePtr collection)
 Adds all elements from collection (or itself) to the end of current list. More...
 
SharedPtr< System::Collections::ObjectModel::ReadOnlyCollection< T > > AsReadOnly ()
 Gets read-only reference to this collection. More...
 
int BinarySearch (const T &item) const
 Looks for item in a sorted list. More...
 
int BinarySearch (const T &item, const SharedPtr< System::Collections::Generic::IComparer< T > > &comparer) const
 Looks for item in a sorted list. More...
 
int BinarySearch (int index, int count, const T &item, const SharedPtr< System::Collections::Generic::IComparer< T > > &comparer) const
 Looks for item in a sorted list. More...
 
template<typename OutputType >
SharedPtr< List< OutputType > > ConvertAll (Converter< T, OutputType > converter)
 Creates a list of elements converted to different type. More...
 
void CopyTo (const System::ArrayPtr< T > &array)
 Copies all elements into existing array elements. More...
 
void CopyTo (int index, const System::ArrayPtr< T > &array, int arrayIndex, int count)
 Copies elements starting from the specified index into existing array elements. More...
 
bool Exists (System::Predicate< T > match)
 Checks if element adhering to specific predicate exists in list. More...
 
Find (System::Predicate< T > predicate)
 Looks for element adhering to specific predicate. More...
 
ListPtr< T > FindAll (System::Predicate< T > match)
 Looks for elements adhering to specific predicate. More...
 
int FindIndex (System::Predicate< T > match)
 Looks for element adhering to specific predicate. More...
 
int FindIndex (int startIndex, System::Predicate< T > match)
 Looks for element adhering to specific predicate. More...
 
int FindIndex (int startIndex, int count, System::Predicate< T > match)
 Looks for element adhering to specific predicate. More...
 
FindLast (System::Predicate< T > match)
 Looks for last element adhering to specific predicate. More...
 
void ForEach (System::Action< T > action)
 Applies action to all elements in list. More...
 
ThisPtr GetRange (int index, int count)
 Creates slice of list. More...
 
int IndexOf (const T &item, int index) const
 Looks for specific item in list. More...
 
void InsertRange (int index, IEnumerablePtr collection)
 Inserts data range at specific position. More...
 
int32_t LastIndexOf (const T &item) const
 Searches for the specified object and returns the zero-based index of the last occurrence within the entire list. More...
 
int32_t LastIndexOf (const T &item, int32_t index) const
 Searches for the specified object and returns the zero-based index of the last occurrence within the range of elements in the List that extends from the first element to the specified index. More...
 
int32_t LastIndexOf (const T &item, int32_t index, int32_t count) const
 Searches for the specified object and returns the zero-based index of the last occurrence within the range of elements in the List that contains the specified number of elements and ends at the specified index. More...
 
int RemoveAll (Predicate< T > match)
 Removes all elements matching specific predicate. More...
 
void RemoveRange (int index, int count)
 Removes slice of list. More...
 
void Reverse ()
 Reverses elements order of the whole list. More...
 
void Reverse (int index, int count)
 Reverses elements order of the list slice. More...
 
void Sort (const SharedPtr< System::Collections::Generic::IComparer< T > > &comparator)
 Sorts elements in the list. More...
 
void Sort ()
 Sorts elements in the list using default comparator. More...
 
void Sort (int index, int count, SharedPtr< System::Collections::Generic::IComparer< T > > comparator)
 Sorts elements in the list slice. More...
 
void Sort (Comparison< T > comparison, bool)
 Sorts elements in the list. More...
 
ArrayPtr< T > ToArray () const
 Converst list to array. More...
 
void TrimExcess ()
 Makes list capacity to fit its size. More...
 
bool TrueForAll (System::Predicate< T > match)
 Determines whether every element in the collection matches the conditions defined by the specified predicate. More...
 
vector_t::reference operator[] (int index)
 Accessor function. More...
 
vector_t::const_reference operator[] (int index) const
 Accessor function. More...
 
vector_tdata ()
 Underlying data structure access function. More...
 
const vector_tdata () const
 Underlying data structure access function. More...
 
void _add_range (std::initializer_list< T > list)
 C++ specific. More...
 
System::Details::VirtualizedIteratorBase< T > * virtualizeBeginIterator () override
 Gets the implementation of begin iterator for the current container. More...
 
System::Details::VirtualizedIteratorBase< T > * virtualizeEndIterator () override
 Gets the implementation of end iterator for the current container. More...
 
System::Details::VirtualizedIteratorBase< T > * virtualizeBeginConstIterator () const override
 Gets the implementation of begin const iterator for the current container. More...
 
System::Details::VirtualizedIteratorBase< T > * virtualizeEndConstIterator () const override
 Gets the implementation of end const iterator for the current container. More...
 
- Public Member Functions inherited from System::Object
ASPOSECPP_SHARED_API Object ()
 Creates object. Initializes all internal data structures. More...
 
virtual ASPOSECPP_SHARED_API ~Object ()
 Destroys object. Frees all internal data structures. More...
 
ASPOSECPP_SHARED_API Object (Object const &x)
 Copy constructor. Doesn't copy anything, really, just initializes new object and enables copy constructing subclasses. More...
 
Objectoperator= (Object const &x)
 Assignment operator. Doesn't copy anything, really, just initializes new object and enables copy constructing subclasses. More...
 
ObjectSharedRefAdded ()
 Increments shared reference count. Shouldn't be called directly; instead, use smart pointers or ThisProtector. More...
 
int SharedRefRemovedSafe ()
 Decrements and returns shared reference count. Shouldn't be called directly; instead, use smart pointers or ThisProtector. More...
 
int RemovedSharedRefs (int count)
 Decreases shared reference count by specified value. More...
 
Detail::SmartPtrCounter * WeakRefAdded ()
 Increments weak reference count. Shouldn't be called directly; instead, use smart pointers or ThisProtector. More...
 
void WeakRefRemoved ()
 Decrements weak reference count. Shouldn't be called directly; instead, use smart pointers or ThisProtector. More...
 
Detail::SmartPtrCounter * GetCounter ()
 Gets reference counter data structure associated with the object. More...
 
int SharedCount () const
 Gets current value of shared reference counter. More...
 
ASPOSECPP_SHARED_API void Lock ()
 Implements C# lock() statement locking. Call directly or use LockContext sentry object. More...
 
ASPOSECPP_SHARED_API void Unlock ()
 Implements C# lock() statement unlocking. Call directly or use LockContext sentry object. More...
 
virtual ASPOSECPP_SHARED_API bool Equals (ptr obj)
 Compares objects using C# Object.Equals semantics. More...
 
virtual ASPOSECPP_SHARED_API int32_t GetHashCode () const
 Analog of C# Object.GetHashCode() method. Enables hashing of custom objects. More...
 
virtual ASPOSECPP_SHARED_API String ToString () const
 Analog of C# Object.ToString() method. Enables converting custom objects to string. More...
 
virtual ASPOSECPP_SHARED_API ptr MemberwiseClone () const
 Analog of C# Object.MemberwiseClone() method. Enables cloning custom types. More...
 
virtual ASPOSECPP_SHARED_API const TypeInfoGetType () const
 Gets actual type of object. Analog of C# System.Object.GetType() call. More...
 
virtual ASPOSECPP_SHARED_API bool Is (const TypeInfo &targetType) const
 Check if object represents an instance of type described by targetType. Analog of C# 'is' operator. More...
 
virtual ASPOSECPP_SHARED_API void SetTemplateWeakPtr (uint32_t argument)
 Set n'th template argument a weak pointer (rather than shared). Allows switching pointers in containers to weak mode. More...
 
virtual ASPOSECPP_SHARED_API bool FastCast (const Details::FastRttiBase &helper, void **out_ptr) const
 For internal purposes only. More...
 
template<>
bool Equals (float const &objA, float const &objB)
 Emulates C#-style floating point comparison where two NaNs are considered equal even though according to IEC 60559:1989 NaN is not equal to any value, including NaN. More...
 
template<>
bool Equals (double const &objA, double const &objB)
 Emulates C#-style floating point comparison where two NaNs are considered equal even though according to IEC 60559:1989 NaN is not equal to any value, including NaN. More...
 
template<>
bool ReferenceEquals (String const &str, std::nullptr_t)
 Specialization of Object::ReferenceEquals for case of string and nullptr. More...
 
template<>
bool ReferenceEquals (String const &str1, String const &str2)
 Specialization of Object::ReferenceEquals for case of strings. More...
 
- Public Member Functions inherited from System::Collections::Generic::IList< T >
bool get_IsFixedSize ()
 Checks whether the collection is of fixed size. More...
 
- Public Member Functions inherited from System::Collections::Generic::ICollection< T >
virtual bool get_IsReadOnly () const
 Checks if collection is read only. More...
 
ICollectionoperator= (ICollection &&) noexcept
 Move assignment operator. More...
 
ICollectionoperator= (const ICollection &)
 Move assignment operator. More...
 
 ICollection ()
 Default constructor. More...
 
 ICollection (const ICollection &)
 Copy constructor. More...
 
 ICollection (ICollection &&) noexcept
 Move constructor. More...
 
virtual ~ICollection ()
 Destructor. More...
 
SharedPtr< Objectget_SyncRoot () const
 Gets the object the collection is being synchronized through. More...
 
- Public Member Functions inherited from System::Collections::Generic::IEnumerable< T >
LINQ_ElementAt (int index)
 Returns the element at a specified index in a sequence. More...
 
LINQ_First ()
 Returns the first element of a sequence. More...
 
LINQ_First (const Func< T, bool > &predicate)
 Returns the first element of a sequence that satisfy the specified condition. More...
 
LINQ_FirstOrDefault ()
 Returns the first element of a sequence, or a default value if the sequence is empty. More...
 
LINQ_FirstOrDefault (std::function< bool(T)> predicate)
 Returns the first element of the sequence that satisfies a condition or a default value if no such element is found. More...
 
LINQ_Last ()
 Returns the last element of a sequence. More...
 
LINQ_LastOrDefault ()
 Returns the last element of a sequence, or a default value if the sequence is empty. More...
 
SharedPtr< List< T > > LINQ_ToList ()
 Creates a List<T> from a sequence. More...
 
int LINQ_Count ()
 Returns the number of elements in the sequence (calculated via direct counting). More...
 
int LINQ_Count (const Func< T, bool > &predicate)
 Returns the number of elements in the sequence that satisfy the specified condition. More...
 
System::ArrayPtr< T > LINQ_ToArray ()
 Creates an array from a sequence. More...
 
bool LINQ_All (std::function< bool(T)> predicate)
 Determines whether all elements of a sequence satisfy a condition. More...
 
bool LINQ_Any ()
 Determines whether a sequence contains any elements. More...
 
bool LINQ_Any (std::function< bool(T)> predicate)
 Determines whether any element of a sequence exists or satisfies a condition. More...
 
SharedPtr< IEnumerable< T > > LINQ_Where (std::function< bool(T)> predicate)
 Filters a sequence based on the specified predicate. More...
 
bool LINQ_Contains (T value)
 Determines if a sequence contains a specified value. More...
 
template<typename ResultType >
SharedPtr< IEnumerable< ResultType > > LINQ_Cast ()
 Casts the elements to the specified type. More...
 
template<typename Key >
SharedPtr< IEnumerable< T > > LINQ_OrderBy (const Func< T, Key > &keySelector)
 Sorts the elements of a sequence in ascending order according to the key values selected by keySelector. More...
 
template<typename Key >
SharedPtr< IEnumerable< T > > LINQ_OrderByDescending (const Func< T, Key > &keySelector)
 Sorts the elements of a sequence in descending order according to the key values selected by keySelector. More...
 
template<typename ResultType >
SharedPtr< IEnumerable< ResultType > > LINQ_OfType ()
 Filters the elements of the sequence based on the specified type. More...
 
template<typename ResultType >
SharedPtr< IEnumerable< ResultType > > LINQ_Select (const Func< T, ResultType > &selector)
 Transforms elements of a sequence. More...
 
template<typename ResultType >
SharedPtr< IEnumerable< ResultType > > LINQ_Select (const Func< T, int32_t, ResultType > &selector)
 Transforms each element of a sequence into a new form by incorporating the element's index. More...
 
SharedPtr< IEnumerable< T > > LINQ_Concat (SharedPtr< IEnumerable< T >> sequence)
 Concatenates two sequences. More...
 
template<typename Key >
System::SharedPtr< IEnumerable< System::SharedPtr< System::Linq::IGrouping< Key, T > > > > LINQ_GroupBy (System::Func< T, Key > keyPredicate)
 Groups the elements of a sequence. More...
 
template<typename ResultType >
SharedPtr< IEnumerable< ResultType > > LINQ_SelectMany (const Func< T, SharedPtr< IEnumerable< ResultType >>> &selector)
 Projects each element of a sequence and combines the resulting sequences into one sequence. More...
 
iterator begin ()
 Gets iterator pointing to the first element (if any) of the collection. This iterator can't be used to change a referenced object because GetEnumerator() returns a copy-object of T. More...
 
iterator end ()
 Gets iterator pointing right after the last element (if any) of the collection. This iterator can't be used to change a referenced object because GetEnumerator() returns a copy-object of T. More...
 
const_iterator begin () const
 Gets iterator pointing to the first element (if any) of the const-qualified instance of the collection. More...
 
const_iterator end () const
 Gets iterator pointing right after the last element (if any) of the const-qualified instance of the collection. More...
 
const_iterator cbegin () const
 Gets iterator pointing to the first const-qualified element (if any) of the collection. More...
 
const_iterator cend () const
 Gets iterator pointing right after the last const-qualified element (if any) of the collection. More...
 
template<typename Result >
SharedPtr< IEnumerable< Result > > LINQ_Cast ()
 
template<typename Result >
SharedPtr< IEnumerable< Result > > LINQ_OfType ()
 
template<typename Result >
SharedPtr< IEnumerable< Result > > LINQ_Select (const Func< Source, Result > &selector)
 
template<typename Result >
SharedPtr< IEnumerable< Result > > LINQ_Select (const Func< Source, int32_t, Result > &selector)
 
template<typename Key >
SharedPtr< IEnumerable< Source > > LINQ_OrderBy (const Func< Source, Key > &keySelector)
 
template<typename Key >
SharedPtr< IEnumerable< Source > > LINQ_OrderByDescending (const Func< Source, Key > &keySelector)
 
template<typename Key >
SharedPtr< IEnumerable< SharedPtr< System::Linq::IGrouping< Key, Source > > > > LINQ_GroupBy (System::Func< Source, Key > keyPredicate)
 
template<typename Result >
SharedPtr< IEnumerable< Result > > LINQ_SelectMany (const Func< Source, SharedPtr< IEnumerable< Result >>> &selector)
 

Protected Types

typedef SharedPtr< ListExt< T > > ThisPtr
 
- Protected Types inherited from System::Collections::Generic::List< T >
typedef SharedPtr< List< T > > ThisPtr
 Pointer type. More...
 

Additional Inherited Members

- Static Public Member Functions inherited from System::Object
static bool ReferenceEquals (ptr const &objA, ptr const &objB)
 Compares objects by reference. More...
 
template<typename T >
static std::enable_if<!IsSmartPtr< T >::value, bool >::type ReferenceEquals (T const &objA, T const &objB)
 Compares objects by reference. More...
 
template<typename T >
static std::enable_if<!IsSmartPtr< T >::value, bool >::type ReferenceEquals (T const &objA, std::nullptr_t)
 Reference-compares value type object with nullptr. More...
 
template<typename T1 , typename T2 >
static std::enable_if< IsSmartPtr< T1 >::value &&IsSmartPtr< T2 >::value, bool >::type Equals (T1 const &objA, T2 const &objB)
 Compares reference type objects in C# style. More...
 
template<typename T1 , typename T2 >
static std::enable_if<!IsSmartPtr< T1 >::value &&!IsSmartPtr< T2 >::value, bool >::type Equals (T1 const &objA, T2 const &objB)
 Compares value type objects in C# style. More...
 
static const TypeInfoType ()
 Implements C# typeof(System.Object) construct. More...
 
- Protected Member Functions inherited from System::Collections::Generic::List< T >
 ~List () override
 Destructor. More...
 
- Protected Member Functions inherited from System::Collections::Generic::IEnumerable< T >
 ~IEnumerable () override
 Destructor. More...
 
virtualized_iteratorGetEnumeratorAsVirtualizedIterator ()
 Gets enumerator instance and prepares it to be used as iterator kernel. More...
 
virtualized_iteratorGetEnumeratorAsVirtualizedIterator () const
 Gets enumerator instance and prepares it to be used as iterator kernel. More...
 
- Protected Attributes inherited from System::Collections::Generic::List< T >
vector_t m_data
 Underlting data structure. More...
 

Detailed Description

template<typename T>
class System::Collections::Generic::ListExt< T >

generic List class that implements IListWrapper interface

Member Typedef Documentation

◆ BaseType [1/2]

template<typename T >
typedef List<T> System::Collections::Generic::ListExt< T >::BaseType

◆ BaseType [2/2]

template<typename T >
typedef IList<T> System::Collections::Generic::List< T >::BaseType

Interface type.

◆ BaseTypes

template<typename T >
typedef System::BaseTypesInfo<System::Object> System::Collections::Generic::ListExt< T >::BaseTypes

◆ ListType

◆ ThisPtr

template<typename T >
typedef SharedPtr<ListExt<T> > System::Collections::Generic::ListExt< T >::ThisPtr
protected

◆ ThisType

◆ ValueType

template<typename T >
typedef T System::Collections::Generic::ListExt< T >::ValueType

Member Function Documentation

◆ CreateIListWrapper()

template<typename T >
System::SharedPtr<System::Collections::IList> System::Collections::Generic::ListExt< T >::CreateIListWrapper ( )
inlineoverridevirtual

IListWrapper interface implementation.

Reimplemented from System::Collections::IListWrapper.

◆ CreateIListWrapperImpl() [1/3]

template<typename T >
template<typename T1 >
std::enable_if<System::IsSmartPtr<T1>::value, System::SharedPtr<System::Collections::IList> >::type System::Collections::Generic::ListExt< T >::CreateIListWrapperImpl ( )
inline

IListWrapper implementation helper for reference types.

◆ CreateIListWrapperImpl() [2/3]

template<typename T >
template<typename T1 >
std::enable_if<!System::IsSmartPtr<T1>::value && System::IsBoxable<T1>::value, System::SharedPtr<System::Collections::IList> >::type System::Collections::Generic::ListExt< T >::CreateIListWrapperImpl ( )
inline

IListWrapper implementation helper for value types.

◆ CreateIListWrapperImpl() [3/3]

template<typename T >
template<typename T1 >
std::enable_if<!System::IsSmartPtr<T1>::value && !System::IsBoxable<T>::value, System::SharedPtr<System::Collections::IList> >::type System::Collections::Generic::ListExt< T >::CreateIListWrapperImpl ( )
inline

IListWrapper implementation helper for other types.