/// <summary>
///
/// </summary>
/// <returns>how much receivers received the event</returns>
public int Post(TContext ctx)
{
var receivers = ListPool <EventReceiver> .Request();
receivers.AddRange(_receivers);
var receviersToBeRemove = SetPool <int> .Request();
try{
var postIndex = 0;
while (postIndex < receivers.Count)
{
var receiver = receivers[postIndex];
receiver.action(ctx);
postIndex++;
if (receiver.type == CallbackType.Once)
{
receviersToBeRemove.Add(receiver.uniqueId);
}
}
return(receivers.Count);
}finally{
ListPool <EventReceiver> .Release(receivers);
this.RemoveReceivers(receviersToBeRemove);
SetPool <int> .Release(receviersToBeRemove);
}
}
public object SetPoolBorrowReturn()
{
var set = SetPool.Borrow <string>();
SetPool.Return(set);
return(set);
}
public object NewSetPoolBorrowReturnUnionWithStrings()
{
var set = SetPool.Borrow <string>();
set.UnionWith(Strings);
SetPool.Return(set);
return(set);
}
private static void Handle(SyntaxNodeAnalysisContext context, IFieldSymbol assignedField)
{
if (context.IsExcludedFromAnalysis())
{
return;
}
if (IsInIgnoredScope(context))
{
return;
}
var typeDeclaration = context.Node.FirstAncestorOrSelf <TypeDeclarationSyntax>();
var typeSymbol = context.SemanticModel.GetDeclaredSymbolSafe(typeDeclaration, context.CancellationToken);
if (!typeSymbol.Is(KnownSymbol.INotifyPropertyChanged))
{
return;
}
if (!typeSymbol.Equals(assignedField.ContainingType))
{
return;
}
var inProperty = context.Node.FirstAncestorOrSelf <PropertyDeclarationSyntax>();
if (inProperty != null)
{
if (Property.IsSimplePropertyWithBackingField(inProperty, context.SemanticModel, context.CancellationToken))
{
return;
}
}
using (var pooledSet = SetPool <IPropertySymbol> .Create())
{
foreach (var member in typeDeclaration.Members)
{
var propertyDeclaration = member as PropertyDeclarationSyntax;
if (propertyDeclaration == null ||
Property.IsLazy(propertyDeclaration, context.SemanticModel, context.CancellationToken))
{
continue;
}
var property = context.SemanticModel.GetDeclaredSymbolSafe(propertyDeclaration, context.CancellationToken);
var getter = GetterBody(propertyDeclaration);
if (getter == null || property == null || property.DeclaredAccessibility != Accessibility.Public)
{
continue;
}
var accessor = context.Node.FirstAncestorOrSelf <AccessorDeclarationSyntax>();
if (accessor?.IsKind(SyntaxKind.GetAccessorDeclaration) == true &&
accessor.FirstAncestorOrSelf <PropertyDeclarationSyntax>() == propertyDeclaration)
{
continue;
}
var expressionBody = context.Node.FirstAncestorOrSelf <ArrowExpressionClauseSyntax>();
if (expressionBody?.FirstAncestorOrSelf <PropertyDeclarationSyntax>() == propertyDeclaration)
{
continue;
}
using (var pooled = TouchedFieldsWalker.Create(getter, context.SemanticModel, context.CancellationToken))
{
if (pooled.Item.Contains(assignedField))
{
if (PropertyChanged.InvokesPropertyChangedFor(context.Node, property, context.SemanticModel, context.CancellationToken) == AnalysisResult.No)
{
if (pooledSet.Item.Add(property))
{
var properties = ImmutableDictionary.CreateRange(new[] { new KeyValuePair <string, string>(PropertyNameKey, property.Name), });
context.ReportDiagnostic(Diagnostic.Create(Descriptor, context.Node.GetLocation(), properties, property.Name));
}
}
}
}
}
}
}
private void UpdateViews()
{
var turnToVisibleItems = SetPool <int> .Request();
try{
if (_viewportDirty)
{
InternalDebug("calculate item views visible");
if (_visibleItems == null)
{
_visibleItems = SetPool <int> .Request();
}
var newVisibleItems = SetPool <int> .Request();
this.layoutCalculator.GetOverlapsInViewport(_viewportRect, newVisibleItems);
var oldVisibleItems = _visibleItems;
try{
foreach (var index in oldVisibleItems)
{
if (!newVisibleItems.Contains(index))
{
//change to invisible
OnItemVisibleChanged(index, false);
}
}
foreach (var index in newVisibleItems)
{
if (!oldVisibleItems.Contains(index))
{
//change to visible
OnItemVisibleChanged(index, true);
turnToVisibleItems.Add(index);
}
}
}finally{
_visibleItems = newVisibleItems;
SetPool <int> .Release(oldVisibleItems);
}
}
if (_itemsDirty)
{
foreach (var index in _visibleItems)
{
OnItemUpdate(index);
}
}
else
{
foreach (var index in turnToVisibleItems)
{
OnItemUpdate(index);
}
}
if (_layoutDirty)
{
InternalDebug("calculate item views layout");
foreach (var index in _visibleItems)
{
OnItemLayout(index);
}
}
else
{
foreach (var index in turnToVisibleItems)
{
OnItemLayout(index);
}
}
}finally{
_viewportDirty = false;
_itemsDirty = false;
_layoutDirty = false;
SetPool <int> .Release(turnToVisibleItems);
}
}
