diff --git a/src/coreclr/src/System.Private.CoreLib/System.Private.CoreLib.csproj b/src/coreclr/src/System.Private.CoreLib/System.Private.CoreLib.csproj
index 4de4ac0aa58606f136f58e131958f719bdf84252..1b227e0521ddbe307ce69c5acd540f03a52b4f6d 100644
--- a/src/coreclr/src/System.Private.CoreLib/System.Private.CoreLib.csproj
+++ b/src/coreclr/src/System.Private.CoreLib/System.Private.CoreLib.csproj
@@ -220,6 +220,7 @@
+
diff --git a/src/coreclr/src/System.Private.CoreLib/src/System/RuntimeHandles.cs b/src/coreclr/src/System.Private.CoreLib/src/System/RuntimeHandles.cs
index cd9dfa1368fcddf94cd8e9082fa2149c96799310..f8ff5504380a7e918759e331fbdea6963590fc74 100644
--- a/src/coreclr/src/System.Private.CoreLib/src/System/RuntimeHandles.cs
+++ b/src/coreclr/src/System.Private.CoreLib/src/System/RuntimeHandles.cs
@@ -208,12 +208,6 @@ internal static bool HasElementType(RuntimeType type)
return outHandles;
}
- [MethodImpl(MethodImplOptions.InternalCall)]
- internal static extern object CreateInstance(RuntimeType type, bool publicOnly, bool wrapExceptions, ref bool canBeCached, ref RuntimeMethodHandleInternal ctor, ref bool hasNoDefaultCtor);
-
- [MethodImpl(MethodImplOptions.InternalCall)]
- internal static extern object Allocate(RuntimeType type);
-
internal static object CreateInstanceForAnotherGenericParameter(RuntimeType type, RuntimeType genericParameter)
{
object? instantiatedObject = null;
@@ -258,6 +252,51 @@ internal static object CreateInstanceForAnotherGenericParameter(RuntimeType type
int cTypeHandles,
ObjectHandleOnStack instantiatedObject);
+ ///
+ /// Given a RuntimeType, returns information about how to activate it via calli
+ /// semantics. This method will ensure the type object is fully initialized within
+ /// the VM, but it will not call any static ctors on the type.
+ ///
+ internal static void GetActivationInfo(
+ RuntimeType rt,
+ out delegate* pfnAllocator,
+ out void* vAllocatorFirstArg,
+ out delegate* pfnCtor,
+ out bool ctorIsPublic)
+ {
+ Debug.Assert(rt != null);
+
+ delegate* pfnAllocatorTemp = default;
+ void* vAllocatorFirstArgTemp = default;
+ delegate* pfnCtorTemp = default;
+ Interop.BOOL fCtorIsPublicTemp = default;
+
+ GetActivationInfo(
+ ObjectHandleOnStack.Create(ref rt),
+ &pfnAllocatorTemp, &vAllocatorFirstArgTemp,
+ &pfnCtorTemp, &fCtorIsPublicTemp);
+
+ pfnAllocator = pfnAllocatorTemp;
+ vAllocatorFirstArg = vAllocatorFirstArgTemp;
+ pfnCtor = pfnCtorTemp;
+ ctorIsPublic = fCtorIsPublicTemp != Interop.BOOL.FALSE;
+ }
+
+ [DllImport(RuntimeHelpers.QCall, CharSet = CharSet.Unicode)]
+ private static extern void GetActivationInfo(
+ ObjectHandleOnStack pRuntimeType,
+ delegate** ppfnAllocator,
+ void** pvAllocatorFirstArg,
+ delegate** ppfnCtor,
+ Interop.BOOL* pfCtorIsPublic);
+
+#if FEATURE_COMINTEROP
+ // Referenced by unmanaged layer (see GetActivationInfo).
+ // First parameter is ComClassFactory*.
+ [MethodImpl(MethodImplOptions.InternalCall)]
+ private static extern object AllocateComObject(void* pClassFactory);
+#endif
+
internal RuntimeType GetRuntimeType()
{
return m_type;
diff --git a/src/coreclr/src/System.Private.CoreLib/src/System/RuntimeType.ActivatorCache.cs b/src/coreclr/src/System.Private.CoreLib/src/System/RuntimeType.ActivatorCache.cs
new file mode 100644
index 0000000000000000000000000000000000000000..abf4f4afa4410fd47384040b68c8d50a26294dde
--- /dev/null
+++ b/src/coreclr/src/System.Private.CoreLib/src/System/RuntimeType.ActivatorCache.cs
@@ -0,0 +1,130 @@
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+
+using System.Diagnostics;
+using System.Diagnostics.CodeAnalysis;
+using System.Runtime.CompilerServices;
+
+namespace System
+{
+ internal sealed partial class RuntimeType
+ {
+ ///
+ /// A cache which allows optimizing ,
+ /// , and related APIs.
+ ///
+ private sealed unsafe class ActivatorCache
+ {
+ // The managed calli to the newobj allocator, plus its first argument (MethodTable*).
+ // In the case of the COM allocator, first arg is ComClassFactory*, not MethodTable*.
+ private readonly delegate* _pfnAllocator;
+ private readonly void* _allocatorFirstArg;
+
+ // The managed calli to the parameterless ctor, taking "this" (as object) as its first argument.
+ private readonly delegate* _pfnCtor;
+ private readonly bool _ctorIsPublic;
+
+#if DEBUG
+ private readonly RuntimeType _originalRuntimeType;
+#endif
+
+ internal ActivatorCache(RuntimeType rt)
+ {
+ Debug.Assert(rt != null);
+
+#if DEBUG
+ _originalRuntimeType = rt;
+#endif
+
+ // The check below is redundant since these same checks are performed at the
+ // unmanaged layer, but this call will throw slightly different exceptions
+ // than the unmanaged layer, and callers might be dependent on this.
+
+ rt.CreateInstanceCheckThis();
+
+ try
+ {
+ RuntimeTypeHandle.GetActivationInfo(rt,
+ out _pfnAllocator!, out _allocatorFirstArg,
+ out _pfnCtor!, out _ctorIsPublic);
+ }
+ catch (Exception ex)
+ {
+ // Exception messages coming from the runtime won't include
+ // the type name. Let's include it here to improve the
+ // debugging experience for our callers.
+
+ string friendlyMessage = SR.Format(SR.Activator_CannotCreateInstance, rt, ex.Message);
+ switch (ex)
+ {
+ case ArgumentException: throw new ArgumentException(friendlyMessage);
+ case PlatformNotSupportedException: throw new PlatformNotSupportedException(friendlyMessage);
+ case NotSupportedException: throw new NotSupportedException(friendlyMessage);
+ case MethodAccessException: throw new MethodAccessException(friendlyMessage);
+ case MissingMethodException: throw new MissingMethodException(friendlyMessage);
+ case MemberAccessException: throw new MemberAccessException(friendlyMessage);
+ }
+
+ throw; // can't make a friendlier message, rethrow original exception
+ }
+
+ // Activator.CreateInstance returns null given typeof(Nullable).
+
+ if (_pfnAllocator == null)
+ {
+ Debug.Assert(Nullable.GetUnderlyingType(rt) != null,
+ "Null allocator should only be returned for Nullable.");
+
+ static object? ReturnNull(void* _) => null;
+ _pfnAllocator = &ReturnNull;
+ }
+
+ // If no ctor is provided, we have Nullable, a ctorless value type T,
+ // or a ctorless __ComObject. In any case, we should replace the
+ // ctor call with our no-op stub. The unmanaged GetActivationInfo layer
+ // would have thrown an exception if 'rt' were a normal reference type
+ // without a ctor.
+
+ if (_pfnCtor == null)
+ {
+ static void CtorNoopStub(object? uninitializedObject) { }
+ _pfnCtor = &CtorNoopStub; // we use null singleton pattern if no ctor call is necessary
+
+ Debug.Assert(_ctorIsPublic); // implicit parameterless ctor is always considered public
+ }
+
+ // We don't need to worry about invoking cctors here. The runtime will figure it
+ // out for us when the instance ctor is called. For value types, because we're
+ // creating a boxed default(T), the static cctor is called when *any* instance
+ // method is invoked.
+ }
+
+ internal bool CtorIsPublic => _ctorIsPublic;
+
+ [MethodImpl(MethodImplOptions.AggressiveInlining)]
+ internal object? CreateUninitializedObject(RuntimeType rt)
+ {
+ // We don't use RuntimeType, but we force the caller to pass it so
+ // that we can keep it alive on their behalf. Once the object is
+ // constructed, we no longer need the reference to the type instance,
+ // as the object itself will keep the type alive.
+
+#if DEBUG
+ if (_originalRuntimeType != rt)
+ {
+ Debug.Fail("Caller passed the wrong RuntimeType to this routine."
+ + Environment.NewLineConst + "Expected: " + (_originalRuntimeType ?? (object)"")
+ + Environment.NewLineConst + "Actual: " + (rt ?? (object)""));
+ }
+#endif
+
+ object? retVal = _pfnAllocator(_allocatorFirstArg);
+ GC.KeepAlive(rt);
+ return retVal;
+ }
+
+ [MethodImpl(MethodImplOptions.AggressiveInlining)]
+ internal void CallConstructor(object? uninitializedObject) => _pfnCtor(uninitializedObject);
+ }
+ }
+}
diff --git a/src/coreclr/src/System.Private.CoreLib/src/System/RuntimeType.CoreCLR.cs b/src/coreclr/src/System.Private.CoreLib/src/System/RuntimeType.CoreCLR.cs
index 1b968d25b370de2778c711fa5f8cbb0b5b775164..a3d0c9a840b9d4762f626ed3f1abd7290669da71 100644
--- a/src/coreclr/src/System.Private.CoreLib/src/System/RuntimeType.CoreCLR.cs
+++ b/src/coreclr/src/System.Private.CoreLib/src/System/RuntimeType.CoreCLR.cs
@@ -17,12 +17,6 @@
namespace System
{
- // this is a work around to get the concept of a calli. It's not as fast but it would be interesting to
- // see how it compares to the current implementation.
- // This delegate will disappear at some point in favor of calli
-
- internal delegate void CtorDelegate(object instance);
-
// Keep this in sync with FormatFlags defined in typestring.h
internal enum TypeNameFormatFlags
{
@@ -3968,113 +3962,45 @@ private void CreateInstanceCheckThis()
return instance;
}
- // the cache entry
- private sealed class ActivatorCache
- {
- // the delegate containing the call to the ctor
- internal readonly RuntimeMethodHandleInternal _hCtorMethodHandle;
- internal MethodAttributes _ctorAttributes;
- internal CtorDelegate? _ctor;
-
- // Lazy initialization was performed
- internal volatile bool _isFullyInitialized;
-
- private static ConstructorInfo? s_delegateCtorInfo;
-
- internal ActivatorCache(RuntimeMethodHandleInternal rmh)
- {
- _hCtorMethodHandle = rmh;
- }
-
- private void Initialize()
- {
- if (!_hCtorMethodHandle.IsNullHandle())
- {
- _ctorAttributes = RuntimeMethodHandle.GetAttributes(_hCtorMethodHandle);
-
- // The default ctor path is optimized for reference types only
- ConstructorInfo delegateCtorInfo = s_delegateCtorInfo ??= typeof(CtorDelegate).GetConstructor(new Type[] { typeof(object), typeof(IntPtr) })!;
-
- // No synchronization needed here. In the worst case we create extra garbage
- _ctor = (CtorDelegate)delegateCtorInfo.Invoke(new object?[] { null, RuntimeMethodHandle.GetFunctionPointer(_hCtorMethodHandle) });
- }
- _isFullyInitialized = true;
- }
-
- public void EnsureInitialized()
- {
- if (!_isFullyInitialized)
- Initialize();
- }
- }
-
///
- /// The slow path of CreateInstanceDefaultCtor
+ /// Helper to invoke the default (parameterless) constructor.
///
- private object? CreateInstanceDefaultCtorSlow(bool publicOnly, bool wrapExceptions, bool fillCache)
+ [DebuggerStepThrough]
+ [DebuggerHidden]
+ internal object? CreateInstanceDefaultCtor(bool publicOnly, bool skipCheckThis, bool fillCache, bool wrapExceptions)
{
- RuntimeMethodHandleInternal runtimeCtor = default;
- bool canBeCached = false;
- bool hasNoDefaultCtor = false;
+ // Get or create the cached factory. Creating the cache will fail if one
+ // of our invariant checks fails; e.g., no appropriate ctor found.
+ //
+ // n.b. In coreclr we ignore 'skipCheckThis' (assumed to be false)
+ // and 'fillCache' (assumed to be true).
- object instance = RuntimeTypeHandle.CreateInstance(this, publicOnly, wrapExceptions, ref canBeCached, ref runtimeCtor, ref hasNoDefaultCtor);
- if (hasNoDefaultCtor)
+ if (GenericCache is not ActivatorCache cache)
{
- throw new MissingMethodException(SR.Format(SR.Arg_NoDefCTor, this));
+ cache = new ActivatorCache(this);
+ GenericCache = cache;
}
- if (canBeCached && fillCache)
+ if (!cache.CtorIsPublic && publicOnly)
{
- // cache the ctor
- GenericCache = new ActivatorCache(runtimeCtor);
+ throw new MissingMethodException(SR.Format(SR.Arg_NoDefCTor, this));
}
- return instance;
- }
+ // Compat: allocation always takes place outside the try block so that OOMs
+ // bubble up to the caller; the ctor invocation is within the try block so
+ // that it can be wrapped in TIE if needed.
- ///
- /// Helper to invoke the default (parameterless) constructor.
- ///
- [DebuggerStepThrough]
- [DebuggerHidden]
- internal object? CreateInstanceDefaultCtor(bool publicOnly, bool skipCheckThis, bool fillCache, bool wrapExceptions)
- {
- // Call the cached
- if (GenericCache is ActivatorCache cacheEntry)
+ object? obj = cache.CreateUninitializedObject(this);
+ try
{
- cacheEntry.EnsureInitialized();
-
- if (publicOnly)
- {
- if (cacheEntry._ctor != null &&
- (cacheEntry._ctorAttributes & MethodAttributes.MemberAccessMask) != MethodAttributes.Public)
- {
- throw new MissingMethodException(SR.Format(SR.Arg_NoDefCTor, this));
- }
- }
-
- // Allocate empty object and call the default constructor if present.
- object instance = RuntimeTypeHandle.Allocate(this);
- Debug.Assert(cacheEntry._ctor != null || IsValueType);
- if (cacheEntry._ctor != null)
- {
- try
- {
- cacheEntry._ctor(instance);
- }
- catch (Exception e) when (wrapExceptions)
- {
- throw new TargetInvocationException(e);
- }
- }
-
- return instance;
+ cache.CallConstructor(obj);
+ }
+ catch (Exception e) when (wrapExceptions)
+ {
+ throw new TargetInvocationException(e);
}
- if (!skipCheckThis)
- CreateInstanceCheckThis();
-
- return CreateInstanceDefaultCtorSlow(publicOnly, wrapExceptions, fillCache);
+ return obj;
}
internal void InvalidateCachedNestedType() => Cache.InvalidateCachedNestedType();
diff --git a/src/coreclr/src/vm/corelib.h b/src/coreclr/src/vm/corelib.h
index dbf514748420a3c6ef8ac66008296813b114390c..fd22fe782981f9b3a7877341e72f34d35f2dc845 100644
--- a/src/coreclr/src/vm/corelib.h
+++ b/src/coreclr/src/vm/corelib.h
@@ -371,6 +371,9 @@ DEFINE_CLASS(RT_TYPE_HANDLE, System, RuntimeTypeHandle)
DEFINE_METHOD(RT_TYPE_HANDLE, GET_TYPE_HELPER, GetTypeHelper, SM_Type_ArrType_IntPtr_int_RetType)
DEFINE_METHOD(RT_TYPE_HANDLE, PVOID_CTOR, .ctor, IM_RuntimeType_RetVoid)
DEFINE_METHOD(RT_TYPE_HANDLE, GETVALUEINTERNAL, GetValueInternal, SM_RuntimeTypeHandle_RetIntPtr)
+#ifdef FEATURE_COMINTEROP
+DEFINE_METHOD(RT_TYPE_HANDLE, ALLOCATECOMOBJECT, AllocateComObject, SM_VoidPtr_RetObj)
+#endif
DEFINE_FIELD(RT_TYPE_HANDLE, M_TYPE, m_type)
DEFINE_CLASS_U(Reflection, RtFieldInfo, NoClass)
diff --git a/src/coreclr/src/vm/ecalllist.h b/src/coreclr/src/vm/ecalllist.h
index e45decc9a7b56dc2128275893a2835f84f24b1fa..00cb622a7046de8d9390a6fbf42f3e7afeb05f0c 100644
--- a/src/coreclr/src/vm/ecalllist.h
+++ b/src/coreclr/src/vm/ecalllist.h
@@ -189,7 +189,6 @@ FCFuncStart(gSystem_RuntimeType)
FCFuncEnd()
FCFuncStart(gCOMTypeHandleFuncs)
- FCFuncElement("CreateInstance", RuntimeTypeHandle::CreateInstance)
QCFuncElement("CreateInstanceForAnotherGenericParameter", RuntimeTypeHandle::CreateInstanceForAnotherGenericParameter)
QCFuncElement("GetGCHandle", RuntimeTypeHandle::GetGCHandle)
QCFuncElement("FreeGCHandle", RuntimeTypeHandle::FreeGCHandle)
@@ -239,7 +238,10 @@ FCFuncStart(gCOMTypeHandleFuncs)
FCFuncElement("IsGenericTypeDefinition", RuntimeTypeHandle::IsGenericTypeDefinition)
FCFuncElement("ContainsGenericVariables", RuntimeTypeHandle::ContainsGenericVariables)
FCFuncElement("SatisfiesConstraints", RuntimeTypeHandle::SatisfiesConstraints)
- FCFuncElement("Allocate", RuntimeTypeHandle::Allocate) //for A.CI
+ QCFuncElement("GetActivationInfo", RuntimeTypeHandle::GetActivationInfo)
+#ifdef FEATURE_COMINTEROP
+ FCFuncElement("AllocateComObject", RuntimeTypeHandle::AllocateComObject)
+#endif // FEATURE_COMINTEROP
FCFuncElement("CompareCanonicalHandles", RuntimeTypeHandle::CompareCanonicalHandles)
FCIntrinsic("GetValueInternal", RuntimeTypeHandle::GetValueInternal, CORINFO_INTRINSIC_RTH_GetValueInternal)
FCFuncElement("IsEquivalentTo", RuntimeTypeHandle::IsEquivalentTo)
diff --git a/src/coreclr/src/vm/metasig.h b/src/coreclr/src/vm/metasig.h
index 0714e0c50e209b5ef2a2d21edcf5cea7b5f86653..c9856714883b8231e3cd4daea9574a7d90aef351 100644
--- a/src/coreclr/src/vm/metasig.h
+++ b/src/coreclr/src/vm/metasig.h
@@ -464,6 +464,7 @@ DEFINE_METASIG(IM(RefObject_RetBool, r(j), F))
DEFINE_METASIG_T(IM(Class_RetObj, C(CLASS), j))
DEFINE_METASIG(IM(Int_VoidPtr_RetVoid, i P(v), v))
DEFINE_METASIG(IM(VoidPtr_RetVoid, P(v), v))
+DEFINE_METASIG(SM(VoidPtr_RetObj, P(v), j))
DEFINE_METASIG_T(IM(Str_RetModule, s, C(MODULE)))
DEFINE_METASIG_T(SM(Assembly_Str_RetAssembly, C(ASSEMBLY) s, C(ASSEMBLY)))
diff --git a/src/coreclr/src/vm/methodtable.cpp b/src/coreclr/src/vm/methodtable.cpp
index 845c655cef9df055f32d9eb9f06769345ea63266..d0d0e2f9d5cf9878d2dcc72cd0c10178f247bd71 100644
--- a/src/coreclr/src/vm/methodtable.cpp
+++ b/src/coreclr/src/vm/methodtable.cpp
@@ -9150,7 +9150,7 @@ BOOL MethodTable::HasExplicitOrImplicitPublicDefaultConstructor()
}
//==========================================================================================
-MethodDesc *MethodTable::GetDefaultConstructor()
+MethodDesc *MethodTable::GetDefaultConstructor(BOOL forceBoxedEntryPoint /* = FALSE */)
{
WRAPPER_NO_CONTRACT;
_ASSERTE(HasDefaultConstructor());
@@ -9161,7 +9161,7 @@ MethodDesc *MethodTable::GetDefaultConstructor()
// returns pCanonMD immediately.
return MethodDesc::FindOrCreateAssociatedMethodDesc(pCanonMD,
this,
- FALSE /* no BoxedEntryPointStub */,
+ forceBoxedEntryPoint,
Instantiation(), /* no method instantiation */
FALSE /* no allowInstParam */);
}
diff --git a/src/coreclr/src/vm/methodtable.h b/src/coreclr/src/vm/methodtable.h
index 850a13d388935c4632e9772f5ab5c29ff744dbdf..4f05c6a1868c2cbda03a82c2f4587c38d770332f 100644
--- a/src/coreclr/src/vm/methodtable.h
+++ b/src/coreclr/src/vm/methodtable.h
@@ -823,7 +823,7 @@ public:
BOOL HasDefaultConstructor();
void SetHasDefaultConstructor();
WORD GetDefaultConstructorSlot();
- MethodDesc *GetDefaultConstructor();
+ MethodDesc *GetDefaultConstructor(BOOL forceBoxedEntryPoint = FALSE);
BOOL HasExplicitOrImplicitPublicDefaultConstructor();
diff --git a/src/coreclr/src/vm/reflectioninvocation.cpp b/src/coreclr/src/vm/reflectioninvocation.cpp
index 22be44f4a2bcf325ccc7e8f57a64d23e994ad15c..cef2ecb6d96c368cd20df9500f562ddb96c466e9 100644
--- a/src/coreclr/src/vm/reflectioninvocation.cpp
+++ b/src/coreclr/src/vm/reflectioninvocation.cpp
@@ -338,183 +338,6 @@ FCIMPL7(void, RuntimeFieldHandle::SetValue, ReflectFieldObject *pFieldUNSAFE, Ob
}
FCIMPLEND
-//A.CI work
-FCIMPL1(Object*, RuntimeTypeHandle::Allocate, ReflectClassBaseObject* pTypeUNSAFE)
-{
- CONTRACTL {
- FCALL_CHECK;
- PRECONDITION(CheckPointer(pTypeUNSAFE));
- }
- CONTRACTL_END
-
- REFLECTCLASSBASEREF refType = (REFLECTCLASSBASEREF)ObjectToOBJECTREF(pTypeUNSAFE);
- TypeHandle type = refType->GetType();
-
- // Handle the nullable special case
- if (Nullable::IsNullableType(type)) {
- return OBJECTREFToObject(Nullable::BoxedNullableNull(type));
- }
-
- OBJECTREF rv = NULL;
- HELPER_METHOD_FRAME_BEGIN_RET_1(refType);
- rv = AllocateObject(type.GetMethodTable());
- HELPER_METHOD_FRAME_END();
- return OBJECTREFToObject(rv);
-
-}//Allocate
-FCIMPLEND
-
-FCIMPL6(Object*, RuntimeTypeHandle::CreateInstance, ReflectClassBaseObject* refThisUNSAFE,
- CLR_BOOL publicOnly,
- CLR_BOOL wrapExceptions,
- CLR_BOOL* pbCanBeCached,
- MethodDesc** pConstructor,
- CLR_BOOL* pbHasNoDefaultCtor) {
- CONTRACTL {
- FCALL_CHECK;
- PRECONDITION(CheckPointer(refThisUNSAFE));
- PRECONDITION(CheckPointer(pbCanBeCached));
- PRECONDITION(CheckPointer(pConstructor));
- PRECONDITION(CheckPointer(pbHasNoDefaultCtor));
- PRECONDITION(*pbCanBeCached == false);
- PRECONDITION(*pConstructor == NULL);
- PRECONDITION(*pbHasNoDefaultCtor == false);
- }
- CONTRACTL_END;
-
- if (refThisUNSAFE == NULL)
- FCThrow(kNullReferenceException);
-
- MethodDesc* pMeth;
-
- OBJECTREF rv = NULL;
- REFLECTCLASSBASEREF refThis = (REFLECTCLASSBASEREF)ObjectToOBJECTREF(refThisUNSAFE);
- TypeHandle thisTH = refThis->GetType();
-
- Assembly *pAssem = thisTH.GetAssembly();
-
- HELPER_METHOD_FRAME_BEGIN_RET_2(rv, refThis);
-
- MethodTable* pVMT;
-
- // Get the type information associated with refThis
- if (thisTH.IsNull() || thisTH.IsTypeDesc()) {
- *pbHasNoDefaultCtor = true;
- goto DoneCreateInstance;
- }
-
- pVMT = thisTH.AsMethodTable();
-
- pVMT->EnsureInstanceActive();
-
-#ifdef FEATURE_COMINTEROP
- // If this is __ComObject then create the underlying COM object.
- if (IsComObjectClass(refThis->GetType())) {
-#ifdef FEATURE_COMINTEROP_UNMANAGED_ACTIVATION
- SyncBlock* pSyncBlock = refThis->GetSyncBlock();
-
- void* pClassFactory = (void*)pSyncBlock->GetInteropInfo()->GetComClassFactory();
- if (!pClassFactory)
- COMPlusThrow(kInvalidComObjectException, IDS_EE_NO_BACKING_CLASS_FACTORY);
-
- // create an instance of the Com Object
- rv = ((ComClassFactory*)pClassFactory)->CreateInstance(NULL);
-
-#else // FEATURE_COMINTEROP_UNMANAGED_ACTIVATION
-
- COMPlusThrow(kInvalidComObjectException, IDS_EE_NO_BACKING_CLASS_FACTORY);
-
-#endif // FEATURE_COMINTEROP_UNMANAGED_ACTIVATION
- }
- else
-#endif // FEATURE_COMINTEROP
- {
- // if this is an abstract class then we will fail this
- if (pVMT->IsAbstract()) {
- if (pVMT->IsInterface())
- COMPlusThrow(kMissingMethodException,W("Acc_CreateInterface"));
- else
- COMPlusThrow(kMissingMethodException,W("Acc_CreateAbst"));
- }
- else if (pVMT->ContainsGenericVariables()) {
- COMPlusThrow(kArgumentException,W("Acc_CreateGeneric"));
- }
-
- if (pVMT->IsByRefLike())
- COMPlusThrow(kNotSupportedException, W("NotSupported_ByRefLike"));
-
- if (pVMT->IsSharedByGenericInstantiations())
- COMPlusThrow(kNotSupportedException, W("NotSupported_Type"));
-
- if (!pVMT->HasDefaultConstructor())
- {
- // We didn't find the parameterless constructor,
- // if this is a Value class we can simply allocate one and return it
-
- if (!pVMT->IsValueType()) {
- *pbHasNoDefaultCtor = true;
- goto DoneCreateInstance;
- }
-
- // Handle the nullable special case
- if (Nullable::IsNullableType(thisTH)) {
- rv = Nullable::BoxedNullableNull(thisTH);
- }
- else
- rv = pVMT->Allocate();
-
- *pbCanBeCached = true;
- }
- else // !pVMT->HasDefaultConstructor()
- {
- pMeth = pVMT->GetDefaultConstructor();
-
- // Validate the method can be called by this caller
- DWORD attr = pMeth->GetAttrs();
-
- if (!IsMdPublic(attr) && publicOnly) {
- *pbHasNoDefaultCtor = true;
- goto DoneCreateInstance;
- }
-
- // We've got the class, lets allocate it and call the constructor
- OBJECTREF o;
-
- o = AllocateObject(pVMT);
- GCPROTECT_BEGIN(o);
-
- MethodDescCallSite ctor(pMeth, &o);
-
- // Copy "this" pointer
- ARG_SLOT arg;
- if (pVMT->IsValueType())
- arg = PtrToArgSlot(o->UnBox());
- else
- arg = ObjToArgSlot(o);
-
- // Call the method
- TryCallMethod(&ctor, &arg, wrapExceptions);
-
- rv = o;
- GCPROTECT_END();
-
- // No need to set these if they cannot be cached. In particular, if the type is a value type with a custom
- // parameterless constructor, don't allow caching and have subsequent calls come back here to allocate an object and
- // call the constructor.
- if (!pVMT->IsValueType())
- {
- *pbCanBeCached = true;
- *pConstructor = pMeth;
- }
- }
- }
-DoneCreateInstance:
- ;
- HELPER_METHOD_FRAME_END();
- return OBJECTREFToObject(rv);
-}
-FCIMPLEND
-
void QCALLTYPE RuntimeTypeHandle::CreateInstanceForAnotherGenericParameter(
QCall::TypeHandle pTypeHandle,
TypeHandle* pInstArray,
@@ -2174,6 +1997,262 @@ lExit: ;
}
FCIMPLEND
+/*
+ * Given a TypeHandle, validates whether it's legal to construct a real
+ * instance of that type. Throws an exception if the instantiation would
+ * be illegal; e.g., type is void or a pointer or an open generic. This
+ * doesn't guarantee that a ctor will succeed, only that the VM is able
+ * to support an instance of this type on the heap.
+ * ==========
+ * The 'fForGetUninitializedInstance' parameter controls the type of
+ * exception that is thrown if a check fails.
+ */
+void RuntimeTypeHandle::ValidateTypeAbleToBeInstantiated(
+ TypeHandle typeHandle,
+ bool fGetUninitializedObject)
+{
+ CONTRACTL
+ {
+ THROWS;
+ GC_TRIGGERS;
+ MODE_ANY;
+ }
+ CONTRACTL_END;
+
+ // Don't allow void
+ if (typeHandle.GetSignatureCorElementType() == ELEMENT_TYPE_VOID)
+ {
+ COMPlusThrow(kArgumentException, W("NotSupported_Type"));
+ }
+
+ // Don't allow arrays, pointers, byrefs, or function pointers
+ if (typeHandle.IsTypeDesc() || typeHandle.IsArray())
+ {
+ COMPlusThrow(fGetUninitializedObject ? kArgumentException : kMissingMethodException, W("NotSupported_Type"));
+ }
+
+ MethodTable* pMT = typeHandle.AsMethodTable();
+ PREFIX_ASSUME(pMT != NULL);
+
+ // Don't allow creating instances of delegates
+ if (pMT->IsDelegate())
+ {
+ COMPlusThrow(kArgumentException, W("NotSupported_Type"));
+ }
+
+ // Don't allow string or string-like (variable length) types.
+ if (pMT->HasComponentSize())
+ {
+ COMPlusThrow(fGetUninitializedObject ? kArgumentException : kMissingMethodException, W("Argument_NoUninitializedStrings"));
+ }
+
+ // Don't allow abstract classes or interface types
+ if (pMT->IsAbstract())
+ {
+ RuntimeExceptionKind exKind = fGetUninitializedObject ? kMemberAccessException : kMissingMethodException;
+ if (pMT->IsInterface())
+ COMPlusThrow(exKind, W("Acc_CreateInterface"));
+ else
+ COMPlusThrow(exKind, W("Acc_CreateAbst"));
+ }
+
+ // Don't allow generic variables (e.g., the 'T' from List)
+ // or open generic types (List<>).
+ if (typeHandle.ContainsGenericVariables())
+ {
+ COMPlusThrow(kMemberAccessException, W("Acc_CreateGeneric"));
+ }
+
+ // Don't allow generics instantiated over __Canon
+ if (pMT->IsSharedByGenericInstantiations())
+ {
+ COMPlusThrow(kNotSupportedException, W("NotSupported_Type"));
+ }
+
+ // Don't allow ref structs
+ if (pMT->IsByRefLike())
+ {
+ COMPlusThrow(kNotSupportedException, W("NotSupported_ByRefLike"));
+ }
+}
+
+/*
+ * Given a RuntimeType, queries info on how to instantiate the object.
+ * pRuntimeType - [required] the RuntimeType object
+ * ppfnAllocator - [required, null-init] fnptr to the allocator
+ * mgd sig: void* -> object
+ * pvAllocatorFirstArg - [required, null-init] first argument to the allocator
+ * (normally, but not always, the MethodTable*)
+ * ppfnCtor - [required, null-init] the instance's parameterless ctor,
+ * mgd sig object -> void, or null if no ctor is needed for this type
+ * pfCtorIsPublic - [required, null-init] whether the parameterless ctor is public
+ * ==========
+ * This method will not run the type's static cctor.
+ * This method will not allocate an instance of the target type.
+ */
+void QCALLTYPE RuntimeTypeHandle::GetActivationInfo(
+ QCall::ObjectHandleOnStack pRuntimeType,
+ PCODE* ppfnAllocator,
+ void** pvAllocatorFirstArg,
+ PCODE* ppfnCtor,
+ BOOL* pfCtorIsPublic
+)
+{
+ CONTRACTL{
+ QCALL_CHECK;
+ PRECONDITION(CheckPointer(ppfnAllocator));
+ PRECONDITION(CheckPointer(pvAllocatorFirstArg));
+ PRECONDITION(CheckPointer(ppfnCtor));
+ PRECONDITION(CheckPointer(pfCtorIsPublic));
+ PRECONDITION(*ppfnAllocator == NULL);
+ PRECONDITION(*pvAllocatorFirstArg == NULL);
+ PRECONDITION(*ppfnCtor == NULL);
+ PRECONDITION(*pfCtorIsPublic == FALSE);
+ }
+ CONTRACTL_END;
+
+ TypeHandle typeHandle = NULL;
+
+ BEGIN_QCALL;
+
+ {
+ GCX_COOP();
+
+ // We need to take the RuntimeType itself rather than the RuntimeTypeHandle,
+ // as the COM CLSID is stored in the RuntimeType object's sync block, and we
+ // might need to pull it out later in this method.
+ typeHandle = ((REFLECTCLASSBASEREF)pRuntimeType.Get())->GetType();
+ }
+
+ ValidateTypeAbleToBeInstantiated(typeHandle, false /* fGetUninitializedObject */);
+
+ MethodTable* pMT = typeHandle.AsMethodTable();
+ PREFIX_ASSUME(pMT != NULL);
+
+#ifdef FEATURE_COMINTEROP
+ // COM allocation can involve the __ComObject base type (with attached CLSID) or a
+ // VM-implemented [ComImport] class. For CreateInstance, the flowchart is:
+ // - For __ComObject,
+ // .. on Windows, bypass normal newobj logic and use ComClassFactory::CreateInstance.
+ // .. on non-Windows, treat as a normal class, type has no special handling in VM.
+ // - For [ComImport] class, treat as a normal class. VM will replace default
+ // ctor with COM activation logic on supported platforms, else ctor itself will PNSE.
+ // IsComObjectClass is the correct way to check for __ComObject specifically
+ if (IsComObjectClass(typeHandle))
+ {
+ void* pClassFactory = NULL;
+
+#ifdef FEATURE_COMINTEROP_UNMANAGED_ACTIVATION
+ {
+ // Need to enter cooperative mode to manipulate OBJECTREFs
+ GCX_COOP();
+ SyncBlock* pSyncBlock = pRuntimeType.Get()->GetSyncBlock();
+ pClassFactory = (void*)pSyncBlock->GetInteropInfo()->GetComClassFactory();
+ }
+#endif // FEATURE_COMINTEROP_UNMANAGED_ACTIVATION
+
+ if (pClassFactory == NULL)
+ {
+ // no factory *or* unmanaged activation is not enabled in this runtime
+ COMPlusThrow(kInvalidComObjectException, IDS_EE_NO_BACKING_CLASS_FACTORY);
+ }
+
+ // managed sig: ComClassFactory* -> object (via FCALL)
+ *ppfnAllocator = CoreLibBinder::GetMethod(METHOD__RT_TYPE_HANDLE__ALLOCATECOMOBJECT)->GetMultiCallableAddrOfCode();
+ *pvAllocatorFirstArg = pClassFactory;
+ *ppfnCtor = NULL; // no ctor call needed; activation handled entirely by the allocator
+ *pfCtorIsPublic = TRUE; // no ctor call needed => assume 'public' equivalent
+ }
+ else
+#endif // FEATURE_COMINTEROP
+ if (pMT->IsNullable())
+ {
+ // CreateInstance returns null given Nullable
+ *ppfnAllocator = NULL;
+ *pvAllocatorFirstArg = NULL;
+ *ppfnCtor = NULL;
+ *pfCtorIsPublic = TRUE; // no ctor call needed => assume 'public' equivalent
+ }
+ else
+ {
+ // managed sig: MethodTable* -> object (via JIT helper)
+ *ppfnAllocator = CEEJitInfo::getHelperFtnStatic(CEEInfo::getNewHelperStatic(pMT));
+ *pvAllocatorFirstArg = pMT;
+
+ if (pMT->HasDefaultConstructor())
+ {
+ // managed sig: object -> void
+ // for ctors on value types, lookup boxed entry point stub
+ MethodDesc* pMD = pMT->GetDefaultConstructor(pMT->IsValueType() /* forceBoxedEntryPoint */);
+ _ASSERTE(pMD != NULL);
+
+ PCODE pCode = pMD->GetMultiCallableAddrOfCode();
+ _ASSERTE(pCode != NULL);
+
+ *ppfnCtor = pCode;
+ *pfCtorIsPublic = pMD->IsPublic();
+ }
+ else if (pMT->IsValueType())
+ {
+ *ppfnCtor = NULL; // no ctor call needed; we're creating a boxed default(T)
+ *pfCtorIsPublic = TRUE; // no ctor call needed => assume 'public' equivalent
+ }
+ else
+ {
+ // reference type with no parameterless ctor - we can't instantiate this
+ COMPlusThrow(kMissingMethodException, W("Arg_NoDefCTorWithoutTypeName"));
+ }
+ }
+
+ pMT->EnsureInstanceActive();
+
+ END_QCALL;
+}
+
+/*
+ * Given a ComClassFactory*, calls the COM allocator
+ * and returns a RCW.
+ */
+FCIMPL1(Object*, RuntimeTypeHandle::AllocateComObject,
+ void* pClassFactory)
+{
+ CONTRACTL{
+ FCALL_CHECK;
+ PRECONDITION(CheckPointer(pClassFactory));
+ }
+ CONTRACTL_END;
+
+ OBJECTREF rv = NULL;
+ bool allocated = false;
+
+ HELPER_METHOD_FRAME_BEGIN_RET_1(rv);
+
+#ifdef FEATURE_COMINTEROP
+#ifdef FEATURE_COMINTEROP_UNMANAGED_ACTIVATION
+ {
+ if (pClassFactory != NULL)
+ {
+ rv = ((ComClassFactory*)pClassFactory)->CreateInstance(NULL);
+ allocated = true;
+ }
+ }
+#endif // FEATURE_COMINTEROP_UNMANAGED_ACTIVATION
+#endif // FEATURE_COMINTEROP
+
+ if (!allocated)
+ {
+#ifdef FEATURE_COMINTEROP
+ COMPlusThrow(kInvalidComObjectException, IDS_EE_NO_BACKING_CLASS_FACTORY);
+#else // FEATURE_COMINTEROP
+ COMPlusThrow(kPlatformNotSupportedException, IDS_EE_NO_BACKING_CLASS_FACTORY);
+#endif // FEATURE_COMINTEROP
+ }
+
+ HELPER_METHOD_FRAME_END();
+ return OBJECTREFToObject(rv);
+}
+FCIMPLEND
+
//*************************************************************************************************
//*************************************************************************************************
//*************************************************************************************************
@@ -2191,36 +2270,9 @@ FCIMPL1(Object*, ReflectionSerialization::GetUninitializedObject, ReflectClassBa
TypeHandle type = objType->GetType();
- // Don't allow void, arrays, pointers, byrefs or function pointers.
- if (type.IsTypeDesc() || type.IsArray() || type.GetSignatureCorElementType() == ELEMENT_TYPE_VOID)
- COMPlusThrow(kArgumentException, W("Argument_InvalidValue"));
+ RuntimeTypeHandle::ValidateTypeAbleToBeInstantiated(type, true /* fForGetUninitializedInstance */);
- MethodTable *pMT = type.AsMethodTable();
- PREFIX_ASSUME(pMT != NULL);
-
- //We don't allow unitialized Strings or Utf8Strings.
- if (pMT == g_pStringClass) {
- COMPlusThrow(kArgumentException, W("Argument_NoUninitializedStrings"));
- }
-
- // if this is an abstract class or an interface type then we will
- // fail this
- if (pMT->IsAbstract()) {
- COMPlusThrow(kMemberAccessException,W("Acc_CreateAbst"));
- }
-
- if (pMT->ContainsGenericVariables()) {
- COMPlusThrow(kMemberAccessException,W("Acc_CreateGeneric"));
- }
-
- if (pMT->IsByRefLike()) {
- COMPlusThrow(kNotSupportedException, W("NotSupported_ByRefLike"));
- }
-
- // Never allow allocation of generics actually instantiated over __Canon
- if (pMT->IsSharedByGenericInstantiations()) {
- COMPlusThrow(kNotSupportedException, W("NotSupported_Type"));
- }
+ MethodTable* pMT = type.AsMethodTable();
// Never allow the allocation of an unitialized ContextBoundObject derived type, these must always be created with a paired
// transparent proxy or the jit will get confused.
@@ -2235,6 +2287,7 @@ FCIMPL1(Object*, ReflectionSerialization::GetUninitializedObject, ReflectClassBa
if (Nullable::IsNullableType(pMT))
pMT = pMT->GetInstantiation()[0].GetMethodTable();
+ // Allocation will invoke any precise static cctors as needed.
retVal = pMT->Allocate();
HELPER_METHOD_FRAME_END();
@@ -2581,4 +2634,3 @@ FCIMPL2(FC_BOOL_RET, ReflectionEnum::InternalHasFlag, Object *pRefThis, Object*
FC_RETURN_BOOL(cmp);
}
FCIMPLEND
-
diff --git a/src/coreclr/src/vm/runtimehandles.h b/src/coreclr/src/vm/runtimehandles.h
index 4c5e9469da3cc4a10f5c97686f909c8a90b80fb6..7675d1b3bcac9fdabb42e70702f93683c41f1b65 100644
--- a/src/coreclr/src/vm/runtimehandles.h
+++ b/src/coreclr/src/vm/runtimehandles.h
@@ -122,13 +122,16 @@ class RuntimeTypeHandle {
public:
// Static method on RuntimeTypeHandle
- static FCDECL1(Object*, Allocate, ReflectClassBaseObject *refType) ; //A.CI work
- static FCDECL6(Object*, CreateInstance, ReflectClassBaseObject* refThisUNSAFE,
- CLR_BOOL publicOnly,
- CLR_BOOL wrapExceptions,
- CLR_BOOL *pbCanBeCached,
- MethodDesc** pConstructor,
- CLR_BOOL *pbHasNoDefaultCtor);
+
+ static
+ void QCALLTYPE GetActivationInfo(
+ QCall::ObjectHandleOnStack pRuntimeType,
+ PCODE* ppfnAllocator,
+ void** pvAllocatorFirstArg,
+ PCODE* ppfnCtor,
+ BOOL* pfCtorIsPublic);
+
+ static FCDECL1(Object*, AllocateComObject, void* pClassFactory);
static
void QCALLTYPE MakeByRef(QCall::TypeHandle pTypeHandle, QCall::ObjectHandleOnStack retType);
@@ -193,6 +196,7 @@ public:
static FCDECL2(FC_BOOL_RET, IsInstanceOfType, ReflectClassBaseObject *pType, Object *object);
static FCDECL6(FC_BOOL_RET, SatisfiesConstraints, PTR_ReflectClassBaseObject pGenericParameter, TypeHandle *typeContextArgs, INT32 typeContextCount, TypeHandle *methodContextArgs, INT32 methodContextCount, PTR_ReflectClassBaseObject pGenericArgument);
+
static
FCDECL1(FC_BOOL_RET, HasInstantiation, PTR_ReflectClassBaseObject pType);
@@ -255,6 +259,10 @@ public:
static
PVOID QCALLTYPE AllocateTypeAssociatedMemory(QCall::TypeHandle type, UINT32 size);
+
+ // Helper methods not called by managed code
+
+ static void ValidateTypeAbleToBeInstantiated(TypeHandle typeHandle, bool fGetUninitializedObject);
};
class RuntimeMethodHandle {
diff --git a/src/libraries/System.Private.CoreLib/src/Resources/Strings.resx b/src/libraries/System.Private.CoreLib/src/Resources/Strings.resx
index 1f0f79373d4505276f48792ac25b7a5a7cca7c3a..fb707d1f4e7a2a308ab175d94b53f6d6cc4276d6 100644
--- a/src/libraries/System.Private.CoreLib/src/Resources/Strings.resx
+++ b/src/libraries/System.Private.CoreLib/src/Resources/Strings.resx
@@ -601,6 +601,9 @@
Must specify binding flags describing the invoke operation required (BindingFlags.InvokeMethod CreateInstance GetField SetField GetProperty SetProperty).
+
+ No parameterless constructor defined.
+
No parameterless constructor defined for type '{0}'.
@@ -3748,4 +3751,7 @@
CodeBase is not supported on assemblies loaded from a single-file bundle.
+
+ Cannot dynamically create an instance of type '{0}'. Reason: {1}
+
diff --git a/src/tests/Interop/COM/Reflection/Reflection.cs b/src/tests/Interop/COM/Reflection/Reflection.cs
index a8769d1d4800f7d57f9049bb1843489b2b19b426..cccb9625937caaae945b7abbde64d91a52c4cde9 100644
--- a/src/tests/Interop/COM/Reflection/Reflection.cs
+++ b/src/tests/Interop/COM/Reflection/Reflection.cs
@@ -89,25 +89,13 @@ static bool ActivateCOMType()
return true;
}
- catch (TargetInvocationException e)
+ catch (PlatformNotSupportedException) when (!RuntimeInformation.IsOSPlatform(OSPlatform.Windows))
{
- if (!RuntimeInformation.IsOSPlatform(OSPlatform.Windows) && e.InnerException is PlatformNotSupportedException)
- {
- return true;
- }
-
- Console.WriteLine($"Caught unexpected {nameof(PlatformNotSupportedException)}: {e}");
- return false;
+ return true;
}
- catch(COMException e)
+ catch (COMException) when (RuntimeInformation.IsOSPlatform(OSPlatform.Windows))
{
- if (RuntimeInformation.IsOSPlatform(OSPlatform.Windows))
- {
- return true;
- }
-
- Console.WriteLine($"Caught unexpected {nameof(COMException)}: {e}");
- return false;
+ return true;
}
catch (Exception e)
{