A base class for read-only collections that wish to implement IList{T} and IListSource{T}. Provides default implementations for most of the methods. More...

Source file:

/Core/Loyc.Essentials/Collections/BaseClasses/ListSourceBase.cs

Inheritance diagram for Loyc.Collections.Impl.ListSourceBase< T >:

Remarks

A base class for read-only collections that wish to implement IList{T} and IListSource{T}. Provides default implementations for most of the methods.

You only need to implement two methods yourself:

public abstract int Count { get; }

public abstract T TryGet(int index, out bool fail);

Properties
abstract override int	Count `[get]`

bool	IsEmpty `[get]`

T	this[int index] `[get]`

Properties inherited from Loyc.Collections.Impl.ReadOnlyCollectionBase< T >
abstract int	Count `[get]`

Properties inherited from Loyc.Collections.ISource< out T >
new int	Count `[get]`
	Gets the number of items in the collection. More...

Properties inherited from Loyc.Collections.ICount
int	Count `[get]`
	Gets the number of items in the collection. More...

Properties inherited from Loyc.Collections.IIsEmpty
bool	IsEmpty `[get]`

Properties inherited from Loyc.Collections.IIndexed< in K, out V >
V	this[K key] `[get]`
	Gets the value associated with the specified key. More...

Properties inherited from Loyc.Collections.IArraySink< in T >
T	this[int index] `[set]`

Public Member Functions
abstract T	TryGet (int index, out bool fail)

int	IndexOf (T item)

Slice_< T >	Slice (int start, int count)
	Returns a sub-range of this list. More...

override IEnumerator< T >	GetEnumerator ()

Public Member Functions inherited from Loyc.Collections.Impl.ReadOnlyCollectionBase< T >
bool	Contains (T item)
	Returns true if and only if the collection contains the specified item. More...

Public Member Functions inherited from Loyc.Collections.ITryGet< in K, out V >
V	TryGet (K key, out bool fail)
	Gets the item for the specified key or index, and does not throw an exception on failure. More...

Protected Member Functions
int	ThrowIndexOutOfRange (int index)

Member Function Documentation

Slice_<T> Loyc.Collections.Impl.ListSourceBase< T >.Slice	(	int	start,
		int	count
	)

inline

Returns a sub-range of this list.

Parameters

start	The new range will start at this index in the current list (this location will be index [0] in the new range).
count	The desired number of elements in the new range, or int.MaxValue to get all elements until the end of the list.

Returns: Returns a sub-range of this range.

Exceptions

ArgumentException The start index was below zero.

The (start, count) range is allowed to be invalid, as long as start is zero or above.

If count is below zero, or if start is above the original Count, the Count of the new slice is set to zero.
if (start + count) is above the original Count, the Count of the new slice is reduced to this.Count - start. Implementation note: do not compute (start + count) because it may overflow. Instead, test whether (count > this.Count - start).

Most collections should use the following implementation:

IListSource<T> IListSource<T>.Slice(int start, int count) { return Slice(start, count); }
public Slice_<T> Slice(int start, int count) { return new Slice_<T>(this, start, count); }

Implements Loyc.Collections.IListSource< out T >.

Remarks

Properties

Public Member Functions

Protected Member Functions

Member Function Documentation