Class ReadOnlyList<T>

Wraps a List<T> to provide a read-only view of its memory without copying any elements. It is preferable to use this collection in API designs instead of IReadOnlyCollection because GetEnumerator() returns a value-type enumerator and does not perform any heap allocations.

Inheritance
object
ReadOnlyList<T>
Implements
Inherited Members
Namespace: Unity.XR.CoreUtils.Collections
Assembly: Unity.XR.CoreUtils.dll
Syntax
public class ReadOnlyList<T> : IReadOnlyList<T>, IReadOnlyCollection<T>, IEnumerable<T>, IEnumerable
Type Parameters
Name Description
T

The element type.
Remarks

This collection is not thread-safe.

Constructors

ReadOnlyList(List<T>)

Constructs a new instance of this class that is a read-only wrapper around the specified list.

Declaration
public ReadOnlyList(List<T> list)
Parameters
Type Name Description
List<T> list

The list to wrap.
Exceptions
Type Condition
ArgumentNullException

Thrown if list is null.

Properties

Count

The number of elements in the read-only list.

Declaration
public int Count { get; }
Property Value
Type Description
int

The number of elements.

this[int]

Returns the element at index.

Declaration
public T this[int index] { get; }
Parameters
Type Name Description
int index

The index.
Property Value
Type Description
T

Methods

Empty()

Returns an empty read-only list with the specified type argument.

Declaration
public static ReadOnlyList<T> Empty()
Returns
Type Description
ReadOnlyList<T>

The empty read-only list.
Remarks

This method caches an empty read-only list that you can re-use throughout the life cycle of your app.

GetEnumerator()

Returns an enumerator that iterates through the read-only list.

Declaration
public List<T>.Enumerator GetEnumerator()
Returns
Type Description
List<T>.Enumerator

The enumerator.

Implements