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Optimize render tree building via RenderTreeFrameArrayBuilder (#24484)
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141 changes: 71 additions & 70 deletions
141
src/Components/Components/src/RenderTree/RenderTreeDiffBuilder.cs
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176 changes: 103 additions & 73 deletions
176
src/Components/Components/src/RenderTree/RenderTreeFrame.cs
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137 changes: 137 additions & 0 deletions
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src/Components/Components/src/RenderTree/RenderTreeFrameArrayBuilder.cs
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,137 @@ | ||
| // Copyright (c) .NET Foundation. All rights reserved. | ||
| // Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information. | ||
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| using System; | ||
|
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| namespace Microsoft.AspNetCore.Components.RenderTree | ||
| { | ||
| /// <summary> | ||
| /// A special subclass of <see cref="ArrayBuilder{T}"/> that contains methods optimized for appending <see cref="RenderTreeFrame"/> entries. | ||
| /// </summary> | ||
| internal class RenderTreeFrameArrayBuilder : ArrayBuilder<RenderTreeFrame> | ||
| { | ||
| // You may notice a repeated block at the top of each of these methods. This is intentionally inlined into each | ||
| // method because doing so improves intensive rendering scenarios by around 1% (based on the FastGrid benchmark). | ||
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| public void AppendElement(int sequence, string elementName) | ||
| { | ||
| if (_itemsInUse == _items.Length) | ||
| { | ||
| GrowBuffer(_items.Length * 2); | ||
| } | ||
|
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| _items[_itemsInUse++] = new RenderTreeFrame | ||
| { | ||
| SequenceField = sequence, | ||
| FrameTypeField = RenderTreeFrameType.Element, | ||
| ElementNameField = elementName, | ||
| }; | ||
| } | ||
|
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| public void AppendText(int sequence, string textContent) | ||
| { | ||
| if (_itemsInUse == _items.Length) | ||
| { | ||
| GrowBuffer(_items.Length * 2); | ||
| } | ||
|
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| _items[_itemsInUse++] = new RenderTreeFrame | ||
| { | ||
| SequenceField = sequence, | ||
| FrameTypeField = RenderTreeFrameType.Text, | ||
| TextContentField = textContent, | ||
| }; | ||
| } | ||
|
|
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| public void AppendMarkup(int sequence, string markupContent) | ||
| { | ||
| if (_itemsInUse == _items.Length) | ||
| { | ||
| GrowBuffer(_items.Length * 2); | ||
| } | ||
|
|
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| _items[_itemsInUse++] = new RenderTreeFrame | ||
| { | ||
| SequenceField = sequence, | ||
| FrameTypeField = RenderTreeFrameType.Markup, | ||
| MarkupContentField = markupContent, | ||
| }; | ||
| } | ||
|
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| public void AppendAttribute(int sequence, string attributeName, object? attributeValue) | ||
| { | ||
| if (_itemsInUse == _items.Length) | ||
| { | ||
| GrowBuffer(_items.Length * 2); | ||
| } | ||
|
|
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| _items[_itemsInUse++] = new RenderTreeFrame | ||
| { | ||
| SequenceField = sequence, | ||
| FrameTypeField = RenderTreeFrameType.Attribute, | ||
| AttributeNameField = attributeName, | ||
| AttributeValueField = attributeValue, | ||
| }; | ||
| } | ||
|
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| public void AppendComponent(int sequence, Type componentType) | ||
| { | ||
| if (_itemsInUse == _items.Length) | ||
| { | ||
| GrowBuffer(_items.Length * 2); | ||
| } | ||
|
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| _items[_itemsInUse++] = new RenderTreeFrame | ||
| { | ||
| SequenceField = sequence, | ||
| FrameTypeField = RenderTreeFrameType.Component, | ||
| ComponentTypeField = componentType, | ||
| }; | ||
| } | ||
|
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| public void AppendElementReferenceCapture(int sequence, Action<ElementReference> elementReferenceCaptureAction) | ||
| { | ||
| if (_itemsInUse == _items.Length) | ||
| { | ||
| GrowBuffer(_items.Length * 2); | ||
| } | ||
|
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| _items[_itemsInUse++] = new RenderTreeFrame | ||
| { | ||
| SequenceField = sequence, | ||
| FrameTypeField = RenderTreeFrameType.ElementReferenceCapture, | ||
| ElementReferenceCaptureActionField = elementReferenceCaptureAction, | ||
| }; | ||
| } | ||
|
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| public void AppendComponentReferenceCapture(int sequence, Action<object?> componentReferenceCaptureAction, int parentFrameIndexValue) | ||
| { | ||
| if (_itemsInUse == _items.Length) | ||
| { | ||
| GrowBuffer(_items.Length * 2); | ||
| } | ||
|
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| _items[_itemsInUse++] = new RenderTreeFrame | ||
| { | ||
| SequenceField = sequence, | ||
| FrameTypeField = RenderTreeFrameType.ComponentReferenceCapture, | ||
| ComponentReferenceCaptureActionField = componentReferenceCaptureAction, | ||
| ComponentReferenceCaptureParentFrameIndexField = parentFrameIndexValue, | ||
| }; | ||
| } | ||
|
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| public void AppendRegion(int sequence) | ||
| { | ||
| if (_itemsInUse == _items.Length) | ||
| { | ||
| GrowBuffer(_items.Length * 2); | ||
| } | ||
|
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| _items[_itemsInUse++] = new RenderTreeFrame | ||
| { | ||
| SequenceField = sequence, | ||
| FrameTypeField = RenderTreeFrameType.Region, | ||
| }; | ||
| } | ||
| } | ||
| } |
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