/// <summary>
/// Initializes a new instance of the <see cref="InterfaceMetadata"/> class.
/// </summary>
/// <param name="type">The interface type.</param>
public InterfaceMetadata(Type type)
{
var attribute = type.GetCustomAttribute(typeof(CrossComInterface), false) as CrossComInterface
?? throw new InvalidOperationException($"Type {type} doesn't have {nameof(CrossComInterface)} attribute.");
this.RcwType = attribute.RcwType;
this.CcwType = attribute.CcwType;
var parent = type.GetInterfaces().OrderBy(t => t.GetInterfaces().Length).LastOrDefault();
var parentVirtualTableSize = 0;
if (type != typeof(IUnknown) && parent != null && typeof(IUnknown).IsAssignableFrom(parent))
{
parentVirtualTableSize = GetValue(parent).VirtualTableSize;
}
var delegates = type.GetNestedTypes(BindingFlags.Public | BindingFlags.NonPublic).Where(t => typeof(Delegate).IsAssignableFrom(t));
var attributes = delegates.Select(t => new { Delegate = t, Attr = t.GetCustomAttribute(typeof(CrossComMethod), false) as CrossComMethod })
.Where(attr => attr.Attr != null)
.OrderBy(attr => attr.Attr !.Order)
.ToList();
for (int i = 0; i < attributes.Count; i++)
{
VirtualMethodMetadata.AddValue(attributes[i].Delegate, i + parentVirtualTableSize);
}
this.VirtualTableSize = parentVirtualTableSize + attributes.Count;
}
public ImportedInterfaceMetadata(Type type)
{
var attribute = type.GetCustomAttribute(typeof(CrossComInterfaceImport), false) as CrossComInterfaceImport;
this.Guid = Guid.Parse(attribute.Guid);
this.Implementation = attribute.Implementation;
var parent = type.GetInterfaces().OrderBy(t => t.GetInterfaces().Length).LastOrDefault();
var parentVirtualTableSize = 0;
if (type != typeof(IUnknown) && parent != null)
{
parentVirtualTableSize = GetValue(parent).VirtualTableSize;
}
var delegates = type.GetNestedTypes(BindingFlags.Public | BindingFlags.NonPublic).Where(t => typeof(Delegate).IsAssignableFrom(t));
var attributes = delegates.Select(t => new { Delegate = t, Attr = t.GetCustomAttribute(typeof(CrossComMethod), false) as CrossComMethod })
.Where(attr => attr.Attr != null)
.OrderBy(attr => attr.Attr.Order)
.ToList();
for (int i = 0; i < attributes.Count; i++)
{
VirtualMethodMetadata.AddValue(attributes[i].Delegate, i + parentVirtualTableSize);
}
this.VirtualTableSize = parentVirtualTableSize + attributes.Count;
}