Loyc.Collections.IListAndListSource< T > Interface Template Reference

This interface combines the original IList{T} interface with its "source" (read-only) component interfaces, including IReadOnlyList{T}, plus IListSource{T}. More...

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Source file:

• /Core/Loyc.Essentials/Collections/Interfaces/Read-write interfaces.cs

Inheritance diagram for Loyc.Collections.IListAndListSource< T >:

Remarks

This interface combines the original IList{T} interface with its "source" (read-only) component interfaces, including IReadOnlyList{T}, plus IListSource{T}.

This interface is not meant to be used by callers. It exists mainly to avoiding ambiguity errors when invoking extension methods in plain C#. For example, there is a TryGet() extension method for IList(T) and an identical TryGet() method for IListSource(T). To prevent the C# from giving an ambiguity error when you try to use TryGet(),

• The list class must implement this interface (or IListEx{T}), and
• There must be a third version of TryGet() that accepts this interface.

Ironically, however, if you actually try to use the list through this interface you'll tend to get errors. For instance, both IList{T} and IReadOnlyList{T} have an indexer, so using the indexer in this interface is ambiguous.

In Enhanced C# I plan to add some kind of prioritization feature that will eliminate the need for interfaces like this one.

Does not include ISinkList{T} because this interface may be implemented by list classes that are read-only.

Additional Inherited Members
Public Member Functions inherited from Loyc.Collections.IListSource< out T >
T	TryGet (int index, out bool fail)
	Gets the item at the specified index, and does not throw an exception on failure. More...
IRange< T >	Slice (int start, int count=int.MaxValue)
	Returns a sub-range of this list. More...