public bool TryGetGenericVirtualTargetForTypeAndSlot(RuntimeTypeHandle targetHandle, ref RuntimeTypeHandle declaringType, RuntimeTypeHandle[] genericArguments, ref string methodName, ref RuntimeMethodSignature methodSignature, out IntPtr methodPointer, out IntPtr dictionaryPointer, out bool slotUpdated)
{
MethodNameAndSignature methodNameAndSignature = new MethodNameAndSignature(methodName, methodSignature);
#if REFLECTION_EXECUTION_TRACE
ReflectionExecutionLogger.WriteLine("GVM resolution starting for " + GetTypeNameDebug(declaringType) + "." + methodNameAndSignature.Name + "(...) on a target of type " + GetTypeNameDebug(targetHandle) + " ...");
#endif
if (RuntimeAugments.IsInterface(declaringType))
{
methodPointer = IntPtr.Zero;
dictionaryPointer = IntPtr.Zero;
slotUpdated = ResolveInterfaceGenericVirtualMethodSlot(targetHandle, ref declaringType, ref methodNameAndSignature);
methodName = methodNameAndSignature.Name;
methodSignature = methodNameAndSignature.Signature;
return slotUpdated;
}
else
{
slotUpdated = false;
return ResolveGenericVirtualMethodTarget(targetHandle, declaringType, genericArguments, methodNameAndSignature, out methodPointer, out dictionaryPointer);
}
}
public bool Equals(RuntimeMethodSignature other)
{
if (IsNativeLayoutSignature && other.IsNativeLayoutSignature)
{
if (NativeLayoutSignature == other.NativeLayoutSignature)
return true;
}
else if (!IsNativeLayoutSignature && !other.IsNativeLayoutSignature)
{
if ((ModuleHandle == other.ModuleHandle) && (Token == other.Token))
return true;
}
// Walk both signatures to check for equality the slow way
return RuntimeAugments.TypeLoaderCallbacks.CompareMethodSignatures(this, other);
}
public bool CompareMethodSignatures(RuntimeMethodSignature signature1, RuntimeMethodSignature signature2)
{
IntPtr nativeLayoutSignature1 = signature1.NativeLayoutSignature;
IntPtr nativeLayoutSignature2 = signature2.NativeLayoutSignature;
if ((nativeLayoutSignature1 != IntPtr.Zero) && (nativeLayoutSignature2 != IntPtr.Zero))
{
if (nativeLayoutSignature1 == nativeLayoutSignature2)
return true;
NativeReader reader1 = GetNativeLayoutInfoReader(RuntimeAugments.GetModuleFromPointer(nativeLayoutSignature1));
NativeParser parser1 = new NativeParser(reader1, reader1.AddressToOffset(nativeLayoutSignature1));
NativeReader reader2 = GetNativeLayoutInfoReader(RuntimeAugments.GetModuleFromPointer(nativeLayoutSignature2));
NativeParser parser2 = new NativeParser(reader2, reader2.AddressToOffset(nativeLayoutSignature2));
return CompareMethodSigs(parser1, parser2);
}
else if (nativeLayoutSignature1 != IntPtr.Zero)
{
int token = signature2.Token;
MetadataReader metadataReader = ModuleList.Instance.GetMetadataReaderForModule(signature2.ModuleHandle);
MethodSignatureComparer comparer = new MethodSignatureComparer(metadataReader, token.AsHandle().ToMethodHandle(metadataReader));
return comparer.IsMatchingNativeLayoutMethodSignature(nativeLayoutSignature1);
}
else if (nativeLayoutSignature2 != IntPtr.Zero)
{
int token = signature1.Token;
MetadataReader metadataReader = ModuleList.Instance.GetMetadataReaderForModule(signature1.ModuleHandle);
MethodSignatureComparer comparer = new MethodSignatureComparer(metadataReader, token.AsHandle().ToMethodHandle(metadataReader));
return comparer.IsMatchingNativeLayoutMethodSignature(nativeLayoutSignature2);
}
else
{
// For now, RuntimeMethodSignatures are only used to compare for method signature equality (along with their Name)
// So we can implement this with the simple equals check
if (signature1.Token != signature2.Token)
return false;
if (signature1.ModuleHandle != signature2.ModuleHandle)
return false;
return true;
}
}
public abstract bool TryGetGenericVirtualTargetForTypeAndSlot(RuntimeTypeHandle targetHandle, ref RuntimeTypeHandle declaringType, RuntimeTypeHandle[] genericArguments, ref string methodName, ref RuntimeMethodSignature methodSignature, out IntPtr methodPointer, out IntPtr dictionaryPointer, out bool slotUpdated);
public abstract bool CompareMethodSignatures(RuntimeMethodSignature signature1, RuntimeMethodSignature signature2);
public static unsafe IntPtr MakeThunk(ThunkKind thunkKind, IntPtr targetPointer, RuntimeMethodSignature methodSignature, IntPtr instantiatingArg, RuntimeTypeHandle[] typeArgs, RuntimeTypeHandle[] methodArgs)
{
int callConversionInfo = CallConversionInfo.RegisterCallConversionInfo(thunkKind, targetPointer, methodSignature, instantiatingArg, typeArgs, methodArgs);
return FindExistingOrAllocateThunk(callConversionInfo);
}
internal bool MethodSignatureHasVarsNeedingCallingConventionConverter(TypeSystemContext context, RuntimeMethodSignature methodSig)
{
if (methodSig.IsNativeLayoutSignature)
return MethodSignatureHasVarsNeedingCallingConventionConverter_NativeLayout(context, methodSig.NativeLayoutSignature);
else
{
#if SUPPORTS_NATIVE_METADATA_TYPE_LOADING
MetadataReader metadataReader = ModuleList.Instance.GetMetadataReaderForModule(methodSig.ModuleHandle);
var methodHandle = methodSig.Token.AsHandle().ToMethodHandle(metadataReader);
var metadataUnit = ((TypeLoaderTypeSystemContext)context).ResolveMetadataUnit(methodSig.ModuleHandle);
var parser = new Internal.TypeSystem.NativeFormat.NativeFormatSignatureParser(metadataUnit, metadataReader.GetMethod(methodHandle).Signature, metadataReader);
var signature = parser.ParseMethodSignature();
return MethodSignatureHasVarsNeedingCallingConventionConverter_MethodSignature(signature);
#else
Environment.FailFast("Cannot parse signature");
return false;
#endif
}
}
internal bool GetCallingConverterDataFromMethodSignature(TypeSystemContext context, RuntimeMethodSignature methodSig, NativeLayoutInfoLoadContext nativeLayoutContext, out bool hasThis, out TypeDesc[] parameters, out bool[] parametersWithGenericDependentLayout)
{
if (methodSig.IsNativeLayoutSignature)
return GetCallingConverterDataFromMethodSignature_NativeLayout(context, methodSig.NativeLayoutSignature, nativeLayoutContext, out hasThis, out parameters, out parametersWithGenericDependentLayout);
else
{
#if SUPPORTS_NATIVE_METADATA_TYPE_LOADING
MetadataReader metadataReader = ModuleList.Instance.GetMetadataReaderForModule(methodSig.ModuleHandle);
var methodHandle = methodSig.Token.AsHandle().ToMethodHandle(metadataReader);
var metadataUnit = ((TypeLoaderTypeSystemContext)context).ResolveMetadataUnit(methodSig.ModuleHandle);
var parser = new Internal.TypeSystem.NativeFormat.NativeFormatSignatureParser(metadataUnit, metadataReader.GetMethod(methodHandle).Signature, metadataReader);
var signature = parser.ParseMethodSignature();
return GetCallingConverterDataFromMethodSignature_MethodSignature(signature, nativeLayoutContext, out hasThis, out parameters, out parametersWithGenericDependentLayout);
#else
parametersWithGenericDependentLayout = null;
hasThis = false;
parameters = null;
return false;
#endif
}
}
internal bool IsStaticMethodSignature(RuntimeMethodSignature methodSig)
{
if (methodSig.IsNativeLayoutSignature)
{
IntPtr moduleHandle = RuntimeAugments.GetModuleFromPointer(methodSig.NativeLayoutSignature);
NativeReader reader = GetNativeLayoutInfoReader(moduleHandle);
NativeParser parser = new NativeParser(reader, reader.AddressToOffset(methodSig.NativeLayoutSignature));
MethodCallingConvention callingConvention = (MethodCallingConvention)parser.GetUnsigned();
return callingConvention.HasFlag(MethodCallingConvention.Static);
}
else
{
var metadataReader = ModuleList.Instance.GetMetadataReaderForModule(methodSig.ModuleHandle);
var methodHandle = methodSig.Token.AsHandle().ToMethodHandle(metadataReader);
var method = methodHandle.GetMethod(metadataReader);
return (method.Flags & MethodAttributes.Static) != 0;
}
}
public override bool TryGetGenericVirtualTargetForTypeAndSlot(RuntimeTypeHandle targetHandle, ref RuntimeTypeHandle declaringType, RuntimeTypeHandle[] genericArguments, ref string methodName, ref RuntimeMethodSignature methodSignature, out IntPtr methodPointer, out IntPtr dictionaryPointer, out bool slotUpdated)
{
return TypeLoaderEnvironment.Instance.TryGetGenericVirtualTargetForTypeAndSlot(targetHandle, ref declaringType, genericArguments, ref methodName, ref methodSignature, out methodPointer, out dictionaryPointer, out slotUpdated);
}
public override bool CompareMethodSignatures(RuntimeMethodSignature signature1, RuntimeMethodSignature signature2)
{
return TypeLoaderEnvironment.Instance.CompareMethodSignatures(signature1, signature2);
}
public unsafe bool TryGetRuntimeMethodHandleForComponents(RuntimeTypeHandle declaringTypeHandle, IntPtr methodName, RuntimeMethodSignature methodSignature, RuntimeTypeHandle[] genericMethodArgs, out RuntimeMethodHandle handle)
{
handle = default(RuntimeMethodHandle);
fixed (RuntimeMethodHandle* pRMH = &handle)
{
IntPtr rmhAsPointer = TryGetRuntimeMethodHandleForComponents(declaringTypeHandle, methodName, methodSignature, genericMethodArgs);
*((IntPtr*)pRMH) = rmhAsPointer;
return rmhAsPointer != IntPtr.Zero;
}
}
/// <summary>
/// Create a runtime method handle from name, signature and generic arguments. If the methodSignature
/// is constructed from a metadata token, the methodName should be IntPtr.Zero, as it already encodes the method
/// name.
/// </summary>
internal unsafe IntPtr TryGetRuntimeMethodHandleForComponents(RuntimeTypeHandle declaringTypeHandle, IntPtr methodName, RuntimeMethodSignature methodSignature, RuntimeTypeHandle[] genericMethodArgs)
{
int sizeToAllocate = sizeof(DynamicMethodHandleInfo);
// Use checked arithmetics to ensure there aren't any overflows/truncations
sizeToAllocate = checked(sizeToAllocate + (genericMethodArgs.Length > 0 ? sizeof(IntPtr) * (genericMethodArgs.Length - 1) : 0));
IntPtr runtimeMethodHandleValue = MemoryHelpers.AllocateMemory(sizeToAllocate);
DynamicMethodHandleInfo* methodData = (DynamicMethodHandleInfo*)runtimeMethodHandleValue.ToPointer();
methodData->DeclaringType = *(IntPtr*)&declaringTypeHandle;
methodData->MethodName = methodName;
methodData->MethodSignature = methodSignature;
methodData->NumGenericArgs = genericMethodArgs.Length;
IntPtr* genericArgPtr = &(methodData->GenericArgsArray);
for (int i = 0; i < genericMethodArgs.Length; i++)
{
RuntimeTypeHandle currentArg = genericMethodArgs[i];
genericArgPtr[i] = *(IntPtr*)¤tArg;
}
// Special flag in the handle value to indicate it was dynamically allocated, and doesn't point into the InvokeMap blob
return runtimeMethodHandleValue + 1;
}
/// <summary>
/// Fast equality check
/// </summary>
public bool StructuralEquals(RuntimeMethodSignature other)
{
if (_ptrField != other._ptrField)
return false;
if (_intField != other._intField)
return false;
if (_isNativeLayoutSignature != other._isNativeLayoutSignature)
return false;
return true;
}
public MethodNameAndSignature(string name, RuntimeMethodSignature signature)
{
Name = name;
Signature = signature;
}