Now that RenderTreeFrame is properly readonly (and because the usage is so low-level) can use fields directly
This commit is contained in:
Steve Sanderson
parent
93f17219ea
commit
848b7dc5df
|
|
@ -24,128 +24,134 @@ namespace Microsoft.AspNetCore.Blazor.RenderTree
|
|||
// if running as a web worker) so for now to keep things simple, treat reference types as
|
||||
// 8 bytes here.
|
||||
|
||||
// --------------------------------------------------------------------------------
|
||||
// Common
|
||||
[FieldOffset(0)] readonly int _sequence;
|
||||
[FieldOffset(4)] readonly RenderTreeFrameType _frameType;
|
||||
|
||||
// RenderTreeFrameType.Element
|
||||
[FieldOffset(8)] readonly int _elementDescendantsEndIndex;
|
||||
[FieldOffset(16)] readonly string _elementName;
|
||||
|
||||
// RenderTreeFrameType.Text
|
||||
[FieldOffset(16)] readonly string _textContent;
|
||||
|
||||
// RenderTreeFrameType.Attribute
|
||||
[FieldOffset(16)] readonly string _attributeName;
|
||||
[FieldOffset(24)] readonly object _attributeValue;
|
||||
|
||||
// RenderTreeFrameType.Component
|
||||
[FieldOffset(8)] readonly int _componentDescendantsEndIndex;
|
||||
[FieldOffset(12)] readonly int _componentId;
|
||||
[FieldOffset(16)] readonly Type _componentType;
|
||||
[FieldOffset(24)] readonly IComponent _component;
|
||||
// --------------------------------------------------------------------------------
|
||||
|
||||
/// <summary>
|
||||
/// Gets the sequence number of the frame. Sequence numbers indicate the relative source
|
||||
/// positions of the instructions that inserted the frames. Sequence numbers are only
|
||||
/// comparable within the same sequence (typically, the same source method).
|
||||
/// </summary>
|
||||
public int Sequence => _sequence;
|
||||
[FieldOffset(0)] public readonly int Sequence;
|
||||
|
||||
/// <summary>
|
||||
/// Describes the type of this frame.
|
||||
/// </summary>
|
||||
public RenderTreeFrameType FrameType => _frameType;
|
||||
[FieldOffset(4)] public readonly RenderTreeFrameType FrameType;
|
||||
|
||||
// --------------------------------------------------------------------------------
|
||||
// RenderTreeFrameType.Element
|
||||
// --------------------------------------------------------------------------------
|
||||
|
||||
/// <summary>
|
||||
/// If the <see cref="FrameType"/> property equals <see cref="RenderTreeFrameType.Element"/>,
|
||||
/// gets the index of the final descendant frame in the tree. The value is
|
||||
/// zero if the frame has not yet been closed.
|
||||
/// </summary>
|
||||
[FieldOffset(8)] public readonly int ElementDescendantsEndIndex;
|
||||
|
||||
/// <summary>
|
||||
/// If the <see cref="FrameType"/> property equals <see cref="RenderTreeFrameType.Element"/>,
|
||||
/// gets a name representing the type of the element. Otherwise, the value is <see langword="null"/>.
|
||||
/// </summary>
|
||||
public string ElementName => _elementName;
|
||||
[FieldOffset(16)] public readonly string ElementName;
|
||||
|
||||
/// <summary>
|
||||
/// If the <see cref="FrameType"/> property equals <see cref="RenderTreeFrameType.Element"/>,
|
||||
/// gets the index of the final descendant frame in the tree. The value is
|
||||
/// zero if the frame is of a different type, or if it has not yet been closed.
|
||||
/// </summary>
|
||||
public int ElementDescendantsEndIndex => _elementDescendantsEndIndex;
|
||||
// --------------------------------------------------------------------------------
|
||||
// RenderTreeFrameType.Text
|
||||
// --------------------------------------------------------------------------------
|
||||
|
||||
/// <summary>
|
||||
/// If the <see cref="FrameType"/> property equals <see cref="RenderTreeFrameType.Text"/>,
|
||||
/// gets the content of the text frame. Otherwise, the value is <see langword="null"/>.
|
||||
/// </summary>
|
||||
public string TextContent => _textContent;
|
||||
[FieldOffset(16)] public readonly string TextContent;
|
||||
|
||||
// --------------------------------------------------------------------------------
|
||||
// RenderTreeFrameType.Attribute
|
||||
// --------------------------------------------------------------------------------
|
||||
|
||||
/// <summary>
|
||||
/// If the <see cref="FrameType"/> property equals <see cref="RenderTreeFrameType.Attribute"/>,
|
||||
/// gets the attribute name. Otherwise, the value is <see langword="null"/>.
|
||||
/// </summary>
|
||||
public string AttributeName => _attributeName;
|
||||
[FieldOffset(16)] public readonly string AttributeName;
|
||||
|
||||
/// <summary>
|
||||
/// If the <see cref="FrameType"/> property equals <see cref="RenderTreeFrameType.Attribute"/>,
|
||||
/// gets the attribute value. Otherwise, the value is <see langword="null"/>.
|
||||
/// </summary>
|
||||
public object AttributeValue => _attributeValue;
|
||||
[FieldOffset(24)] public readonly object AttributeValue;
|
||||
|
||||
// --------------------------------------------------------------------------------
|
||||
// RenderTreeFrameType.Component
|
||||
// --------------------------------------------------------------------------------
|
||||
|
||||
/// <summary>
|
||||
/// If the <see cref="FrameType"/> property equals <see cref="RenderTreeFrameType.Component"/>,
|
||||
/// gets the type of the child component.
|
||||
/// gets the index of the final descendant frame in the tree. The value is
|
||||
/// zero if the frame has not yet been closed.
|
||||
/// </summary>
|
||||
public Type ComponentType => _componentType;
|
||||
[FieldOffset(8)] public readonly int ComponentDescendantsEndIndex;
|
||||
|
||||
/// <summary>
|
||||
/// If the <see cref="FrameType"/> property equals <see cref="RenderTreeFrameType.Component"/>,
|
||||
/// gets the child component instance identifier.
|
||||
/// </summary>
|
||||
public int ComponentId => _componentId;
|
||||
[FieldOffset(12)] public readonly int ComponentId;
|
||||
|
||||
/// <summary>
|
||||
/// If the <see cref="FrameType"/> property equals <see cref="RenderTreeFrameType.Component"/>,
|
||||
/// gets the type of the child component.
|
||||
/// </summary>
|
||||
[FieldOffset(16)] public readonly Type ComponentType;
|
||||
|
||||
/// <summary>
|
||||
/// If the <see cref="FrameType"/> property equals <see cref="RenderTreeFrameType.Component"/>,
|
||||
/// gets the child component instance. Otherwise, the value is <see langword="null"/>.
|
||||
/// </summary>
|
||||
public IComponent Component => _component;
|
||||
[FieldOffset(24)] public readonly IComponent Component;
|
||||
|
||||
private RenderTreeFrame(int sequence, string elementName, int descendantsEndIndex)
|
||||
: this()
|
||||
{
|
||||
_frameType = RenderTreeFrameType.Element;
|
||||
_sequence = sequence;
|
||||
_elementName = elementName;
|
||||
_elementDescendantsEndIndex = descendantsEndIndex;
|
||||
FrameType = RenderTreeFrameType.Element;
|
||||
Sequence = sequence;
|
||||
ElementName = elementName;
|
||||
ElementDescendantsEndIndex = descendantsEndIndex;
|
||||
}
|
||||
|
||||
private RenderTreeFrame(int sequence, Type componentType, int descendantsEndIndex)
|
||||
: this()
|
||||
{
|
||||
_frameType = RenderTreeFrameType.Component;
|
||||
_sequence = sequence;
|
||||
_componentType = componentType;
|
||||
_componentDescendantsEndIndex = descendantsEndIndex;
|
||||
FrameType = RenderTreeFrameType.Component;
|
||||
Sequence = sequence;
|
||||
ComponentType = componentType;
|
||||
ComponentDescendantsEndIndex = descendantsEndIndex;
|
||||
}
|
||||
|
||||
private RenderTreeFrame(int sequence, Type componentType, int descendantsEndIndex, int componentId, IComponent component)
|
||||
: this(sequence, componentType, descendantsEndIndex)
|
||||
{
|
||||
_componentId = componentId;
|
||||
_component = component;
|
||||
ComponentId = componentId;
|
||||
Component = component;
|
||||
}
|
||||
|
||||
private RenderTreeFrame(int sequence, string textContent)
|
||||
: this()
|
||||
{
|
||||
_frameType = RenderTreeFrameType.Text;
|
||||
_sequence = sequence;
|
||||
_textContent = textContent;
|
||||
FrameType = RenderTreeFrameType.Text;
|
||||
Sequence = sequence;
|
||||
TextContent = textContent;
|
||||
}
|
||||
|
||||
private RenderTreeFrame(int sequence, string attributeName, object attributeValue)
|
||||
: this()
|
||||
{
|
||||
_frameType = RenderTreeFrameType.Attribute;
|
||||
_sequence = sequence;
|
||||
_attributeName = attributeName;
|
||||
_attributeValue = attributeValue;
|
||||
FrameType = RenderTreeFrameType.Attribute;
|
||||
Sequence = sequence;
|
||||
AttributeName = attributeName;
|
||||
AttributeValue = attributeValue;
|
||||
}
|
||||
|
||||
internal static RenderTreeFrame Element(int sequence, string elementName)
|
||||
|
|
@ -164,15 +170,15 @@ namespace Microsoft.AspNetCore.Blazor.RenderTree
|
|||
=> new RenderTreeFrame(sequence, typeof(T), 0);
|
||||
|
||||
internal RenderTreeFrame WithElementDescendantsEndIndex(int descendantsEndIndex)
|
||||
=> new RenderTreeFrame(_sequence, elementName: _elementName, descendantsEndIndex: descendantsEndIndex);
|
||||
=> new RenderTreeFrame(Sequence, elementName: ElementName, descendantsEndIndex: descendantsEndIndex);
|
||||
|
||||
internal RenderTreeFrame WithComponentDescendantsEndIndex(int descendantsEndIndex)
|
||||
=> new RenderTreeFrame(_sequence, componentType: _componentType, descendantsEndIndex: descendantsEndIndex);
|
||||
=> new RenderTreeFrame(Sequence, componentType: ComponentType, descendantsEndIndex: descendantsEndIndex);
|
||||
|
||||
internal RenderTreeFrame WithAttributeSequence(int sequence)
|
||||
=> new RenderTreeFrame(sequence, attributeName: _attributeName, attributeValue: _attributeValue);
|
||||
=> new RenderTreeFrame(sequence, attributeName: AttributeName, attributeValue: AttributeValue);
|
||||
|
||||
internal RenderTreeFrame WithComponentInstance(int componentId, IComponent component)
|
||||
=> new RenderTreeFrame(_sequence, _componentType, _componentDescendantsEndIndex, componentId, component);
|
||||
=> new RenderTreeFrame(Sequence, ComponentType, ComponentDescendantsEndIndex, componentId, component);
|
||||
}
|
||||
}
|
||||
|
|
|
|||
Loading…
Reference in New Issue