/// <summary>
/// Get the backing fields for the <paramref name="property"/> these are different for readonly dependency properties where the setter returns the DependencyPropertyKey field.
/// This method looks for fields that matches the name NameProperty and NamePropertyKey.
/// </summary>
private static bool TryGetBackingFieldsByName(IPropertySymbol property, Compilation compilation, out BackingFieldOrProperty getter, out BackingFieldOrProperty setter)
{
getter = default;
setter = default;
if (property == null ||
!property.ContainingType.IsAssignableTo(KnownSymbols.DependencyObject, compilation))
{
return(false);
}
foreach (var member in property.ContainingType.GetMembers())
{
if (BackingFieldOrProperty.TryCreateForDependencyProperty(member, out var candidate))
{
if (candidate.Name.IsParts(property.Name, "Property"))
{
if (!DependencyProperty.IsPotentialDependencyPropertyBackingField(candidate))
{
return(false);
}
getter = candidate;
}
if (candidate.Name.IsParts(property.Name, "PropertyKey"))
{
if (!DependencyProperty.IsPotentialDependencyPropertyKeyBackingField(candidate))
{
return(false);
}
setter = candidate;
}
}
}
if (setter.Symbol == null)
{
setter = getter;
}
return(setter.Symbol != null);
}
