internal uint CalculateTypeDefTreatmentAndRowId(TypeDefinitionHandle handle)
{
Debug.Assert(_metadataKind != MetadataKind.Ecma335);
TypeDefTreatment treatment;
TypeAttributes flags = TypeDefTable.GetFlags(handle);
Handle extends = TypeDefTable.GetExtends(handle);
if ((flags & TypeAttributes.WindowsRuntime) != 0)
{
if (_metadataKind == MetadataKind.WindowsMetadata)
{
treatment = GetWellKnownTypeDefinitionTreatment(handle);
if (treatment != TypeDefTreatment.None)
{
return(TreatmentAndRowId((byte)treatment, handle.RowId));
}
// Is this an attribute?
if (extends.Kind == HandleKind.TypeReference && IsSystemAttribute((TypeReferenceHandle)extends))
{
treatment = TypeDefTreatment.NormalAttribute;
}
else
{
treatment = TypeDefTreatment.NormalNonAttribute;
}
}
else if (_metadataKind == MetadataKind.ManagedWindowsMetadata && NeedsWinRTPrefix(flags, extends))
{
// WinMDExp emits two versions of RuntimeClasses and Enums:
//
// public class Foo {} // the WinRT reference class
// internal class <CLR>Foo {} // the implementation class that we want WinRT consumers to ignore
//
// The adapter's job is to undo WinMDExp's transformations. I.e. turn the above into:
//
// internal class <WinRT>Foo {} // the WinRT reference class that we want CLR consumers to ignore
// public class Foo {} // the implementation class
//
// We only add the <WinRT> prefix here since the WinRT view is the only view that is marked WindowsRuntime
// De-mangling the CLR name is done below.
// tomat: The CLR adapter implements a back-compat quirk: Enums exported with an older WinMDExp have only one version
// not marked with tdSpecialName. These enums should *not* be mangled and flipped to private.
// We don't implement this flag since the WinMDs producted by the older WinMDExp are not used in the wild.
treatment = TypeDefTreatment.PrefixWinRTName;
}
else
{
treatment = TypeDefTreatment.None;
}
// Scan through Custom Attributes on type, looking for interesting bits. We only
// need to do this for RuntimeClasses
if ((treatment == TypeDefTreatment.PrefixWinRTName || treatment == TypeDefTreatment.NormalNonAttribute))
{
if ((flags & TypeAttributes.Interface) == 0 &&
HasAttribute(handle, "Windows.UI.Xaml", "TreatAsAbstractComposableClassAttribute"))
{
treatment |= TypeDefTreatment.MarkAbstractFlag;
}
}
}
else if (_metadataKind == MetadataKind.ManagedWindowsMetadata && IsClrImplementationType(handle))
{
// <CLR> implementation classes are not marked WindowsRuntime, but still need to be modified
// by the adapter.
treatment = TypeDefTreatment.UnmangleWinRTName;
}
else
{
treatment = TypeDefTreatment.None;
}
return(TreatmentAndRowId((byte)treatment, handle.RowId));
}
private uint CalculateMethodDefTreatmentAndRowId(MethodDefinitionHandle methodDef)
{
MethodDefTreatment treatment = MethodDefTreatment.Implementation;
TypeDefinitionHandle parentTypeDef = GetDeclaringType(methodDef);
TypeAttributes parentFlags = TypeDefTable.GetFlags(parentTypeDef);
if ((parentFlags & TypeAttributes.WindowsRuntime) != 0)
{
if (IsClrImplementationType(parentTypeDef))
{
treatment = MethodDefTreatment.Implementation;
}
else if (parentFlags.IsNested())
{
treatment = MethodDefTreatment.Implementation;
}
else if ((parentFlags & TypeAttributes.Interface) != 0)
{
treatment = MethodDefTreatment.InterfaceMethod;
}
else if (_metadataKind == MetadataKind.ManagedWindowsMetadata && (parentFlags & TypeAttributes.Public) == 0)
{
treatment = MethodDefTreatment.Implementation;
}
else
{
treatment = MethodDefTreatment.Other;
var parentBaseType = TypeDefTable.GetExtends(parentTypeDef);
if (parentBaseType.Kind == HandleKind.TypeReference)
{
switch (GetSpecialTypeRefTreatment((TypeReferenceHandle)parentBaseType))
{
case TypeRefTreatment.SystemAttribute:
treatment = MethodDefTreatment.AttributeMethod;
break;
case TypeRefTreatment.SystemDelegate:
treatment = MethodDefTreatment.DelegateMethod | MethodDefTreatment.MarkPublicFlag;
break;
}
}
}
}
if (treatment == MethodDefTreatment.Other)
{
// we want to hide the method if it implements
// only redirected interfaces
// We also want to check if the methodImpl is IClosable.Close,
// so we can change the name
bool seenRedirectedInterfaces = false;
bool seenNonRedirectedInterfaces = false;
bool isIClosableClose = false;
foreach (var methodImplHandle in new MethodImplementationHandleCollection(this, parentTypeDef))
{
MethodImplementation methodImpl = GetMethodImplementation(methodImplHandle);
if (methodImpl.MethodBody == methodDef)
{
EntityHandle declaration = methodImpl.MethodDeclaration;
// See if this MethodImpl implements a redirected interface
// In WinMD, MethodImpl will always use MemberRef and TypeRefs to refer to redirected interfaces,
// even if they are in the same module.
if (declaration.Kind == HandleKind.MemberReference &&
ImplementsRedirectedInterface((MemberReferenceHandle)declaration, out isIClosableClose))
{
seenRedirectedInterfaces = true;
if (isIClosableClose)
{
// This method implements IClosable.Close
// Let's rename to IDisposable later
// Once we know this implements IClosable.Close, we are done
// looking
break;
}
}
else
{
// Now we know this implements a non-redirected interface
// But we need to keep looking, just in case we got a methodimpl that
// implements the IClosable.Close method and needs to be renamed
seenNonRedirectedInterfaces = true;
}
}
}
if (isIClosableClose)
{
treatment = MethodDefTreatment.DisposeMethod;
}
else if (seenRedirectedInterfaces && !seenNonRedirectedInterfaces)
{
// Only hide if all the interfaces implemented are redirected
treatment = MethodDefTreatment.HiddenInterfaceImplementation;
}
}
// If treatment is other, then this is a non-managed WinRT runtime class definition
// Find out about various bits that we apply via attributes and name parsing
if (treatment == MethodDefTreatment.Other)
{
treatment |= GetMethodTreatmentFromCustomAttributes(methodDef);
}
return(TreatmentAndRowId((byte)treatment, methodDef.RowId));
}