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Avoid some struct copying during array building

This commit is contained in:
Steve Sanderson 2018-01-23 23:50:21 -08:00
parent 6e4d0dbca4
commit 9da3260eb7
3 changed files with 4 additions and 4 deletions
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4
src/Microsoft.Blazor/RenderTree/ArrayBuilder.cs
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@ -45,8 +45,8 @@ namespace Microsoft.Blazor.RenderTree
/// Appends a new item, automatically resizing the underlying array if necessary. /// Appends a new item, automatically resizing the underlying array if necessary.
/// </summary> /// </summary>
/// <param name="item">The item to append.</param> /// <param name="item">The item to append.</param>
[MethodImpl(MethodImplOptions.AggressiveInlining)] [MethodImpl(MethodImplOptions.AggressiveInlining)] // Just like System.Collections.Generic.List<T>
public void Append(T item) public void Append(in T item)
{ {
if (_itemsInUse == _items.Length) if (_itemsInUse == _items.Length)
{ {

2
src/Microsoft.Blazor/RenderTree/RenderTreeBuilder.cs
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@ -159,7 +159,7 @@ namespace Microsoft.Blazor.RenderTree
public ArrayRange<RenderTreeNode> GetNodes() => public ArrayRange<RenderTreeNode> GetNodes() =>
_entries.ToRange(); _entries.ToRange();
private void Append(RenderTreeNode node) private void Append(in RenderTreeNode node)
{ {
_entries.Append(node); _entries.Append(node);

2
src/Microsoft.Blazor/RenderTree/RenderTreeDiffComputer.cs
View File

@ -286,7 +286,7 @@ namespace Microsoft.Blazor.RenderTree
return index; return index;
} }
private void Append(RenderTreeEdit entry) private void Append(in RenderTreeEdit entry)
{ {
if (entry.Type == RenderTreeEditType.StepOut) if (entry.Type == RenderTreeEditType.StepOut)
{ {