/// <summary>
/// Initialize the Reader and LoadContext fields of the native layout info
/// </summary>
/// <param name="type"></param>
/// <param name="nativeLayoutInfo"></param>
private static void FinishInitNativeLayoutInfo(TypeDesc type, ref NativeLayoutInfo nativeLayoutInfo)
{
var nativeLayoutInfoLoadContext = new NativeLayoutInfoLoadContext();
nativeLayoutInfoLoadContext._typeSystemContext = type.Context;
nativeLayoutInfoLoadContext._module = nativeLayoutInfo.Module;
if (type is DefType)
{
nativeLayoutInfoLoadContext._typeArgumentHandles = ((DefType)type).Instantiation;
}
else if (type is ArrayType)
{
nativeLayoutInfoLoadContext._typeArgumentHandles = new Instantiation(new TypeDesc[] { ((ArrayType)type).ElementType });
}
else
{
Debug.Assert(false);
}
nativeLayoutInfoLoadContext._methodArgumentHandles = new Instantiation(null);
nativeLayoutInfo.Reader = TypeLoaderEnvironment.GetNativeLayoutInfoReader(nativeLayoutInfo.Module.Handle);
nativeLayoutInfo.LoadContext = nativeLayoutInfoLoadContext;
}
public static IntPtr NativeLayoutSignature(this RuntimeSignature signature)
{
if (!signature.IsNativeLayoutSignature)
Environment.FailFast("Not a valid native layout signature");
NativeReader reader = TypeLoaderEnvironment.GetNativeLayoutInfoReader(signature);
return reader.OffsetToAddress(signature.NativeLayoutOffset);
}
private static InstantiatedMethod TryGetGenericMethodTemplate_Internal(InstantiatedMethod concreteMethod, CanonicalFormKind kind, out NativeFormatModuleInfo nativeLayoutInfoModule, out uint nativeLayoutInfoToken)
{
nativeLayoutInfoModule = null;
nativeLayoutInfoToken = 0;
var canonForm = concreteMethod.GetCanonMethodTarget(kind);
var hashCode = canonForm.GetHashCode();
foreach (NativeFormatModuleInfo moduleInfo in ModuleList.EnumerateModules())
{
NativeReader nativeLayoutReader = TypeLoaderEnvironment.GetNativeLayoutInfoReader(moduleInfo.Handle);
if (nativeLayoutReader == null)
{
continue;
}
NativeHashtable genericMethodTemplatesHashtable = LoadHashtable(moduleInfo, ReflectionMapBlob.GenericMethodsTemplateMap, out _);
if (genericMethodTemplatesHashtable.IsNull)
{
continue;
}
var context = new NativeLayoutInfoLoadContext
{
_typeSystemContext = concreteMethod.Context,
_typeArgumentHandles = concreteMethod.OwningType.Instantiation,
_methodArgumentHandles = concreteMethod.Instantiation,
_module = moduleInfo
};
var enumerator = genericMethodTemplatesHashtable.Lookup(hashCode);
NativeParser entryParser;
while (!(entryParser = enumerator.GetNext()).IsNull)
{
var methodSignatureParser = new NativeParser(nativeLayoutReader, entryParser.GetUnsigned());
// Get the unified generic method holder and convert it to its canonical form
var candidateTemplate = (InstantiatedMethod)context.GetMethod(ref methodSignatureParser);
Debug.Assert(candidateTemplate.Instantiation.Length > 0);
if (canonForm == candidateTemplate.GetCanonMethodTarget(kind))
{
TypeLoaderLogger.WriteLine("Found template for generic method " + concreteMethod.ToString() + ": " + candidateTemplate.ToString());
nativeLayoutInfoModule = moduleInfo;
nativeLayoutInfoToken = entryParser.GetUnsigned();
if (nativeLayoutInfoToken == BadTokenFixupValue)
{
// TODO: once multifile gets fixed up, make this throw a BadImageFormatException
TypeLoaderLogger.WriteLine("ERROR: template not fixed up, skipping");
continue;
}
Debug.Assert(
(kind != CanonicalFormKind.Universal) ||
(kind == CanonicalFormKind.Universal && candidateTemplate == candidateTemplate.GetCanonMethodTarget(kind)));
return(candidateTemplate);
}
}
}
TypeLoaderLogger.WriteLine("ERROR: Cannot find a suitable template for generic method " + concreteMethod.ToString());
return(null);
}
