Insert() [5/6]

ImmutableArray< T > System.Collections.Immutable.ImmutableArray< T >.Insert ( int index, T item )

inline

Implements System.Collections.Immutable.IImmutableList< T >.

Definition at line 1033 of file ImmutableArray.cs.

    {
        ImmutableArray<T> immutableArray = this;
        immutableArray.ThrowNullRefIfNotInitialized();
        Requires.Range(index >= 0 && index <= immutableArray.Length, "index");
        if (immutableArray.Length == 0)
        {
            return ImmutableArray.Create(item);
        }
        T[] array = new T[immutableArray.Length + 1];
        array[index] = item;
        if (index != 0)
        {
            Array.Copy(immutableArray.array, array, index);
        }
        if (index != immutableArray.Length)
        {
            Array.Copy(immutableArray.array, index, array, index + 1, immutableArray.Length - index);
        }
        return new ImmutableArray<T>(array);
    }

References System.Collections.Immutable.ImmutableArray< T >.array, System.Array.Copy(), System.index, System.item, and System.Collections.Immutable.Requires.Range().