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// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
// See the LICENSE file in the project root for more information.
//
//
// Contains VM implementation of WinRT type cache for code:CLRPrivBinderWinRT binder.
//
//=====================================================================================================================
#include "common.h" // precompiled header
#include "clrprivtypecachewinrt.h"
#ifndef DACCESS_COMPILE
//=====================================================================================================================
// S_OK - pAssembly contains type wszTypeName
// S_FALSE - pAssembly does not contain type wszTypeName
//
HRESULT
CLRPrivTypeCacheWinRT::ContainsType(
ICLRPrivAssembly * pPrivAssembly,
LPCWSTR wszTypeName)
{
STANDARD_VM_CONTRACT;
HRESULT hr = S_OK;
AppDomain * pAppDomain = AppDomain::GetCurrentDomain();
ReleaseHolder<PEAssembly> pPEAssembly;
IfFailGo(pAppDomain->BindHostedPrivAssembly(nullptr, pPrivAssembly, nullptr, &pPEAssembly));
_ASSERTE(pPEAssembly != nullptr);
{
// Find DomainAssembly * (can be cached if this is too slow to call always)
DomainAssembly * pDomainAssembly = pAppDomain->LoadDomainAssembly(
nullptr, // pIdentity
pPEAssembly,
FILE_LOAD_DELIVER_EVENTS);
// Convert the type name into namespace and class name in UTF8
StackSString ssTypeNameWCHAR(wszTypeName);
StackSString ssTypeName;
ssTypeNameWCHAR.ConvertToUTF8(ssTypeName);
LPUTF8 szTypeName = (LPUTF8)ssTypeName.GetUTF8NoConvert();
LPCUTF8 szNamespace;
LPCUTF8 szClassName;
ns::SplitInline(szTypeName, szNamespace, szClassName);
hr = ContainsTypeHelper(pDomainAssembly->GetAssembly(), szNamespace, szClassName);
_ASSERTE((hr == S_OK) || (hr == S_FALSE));
return hr;
}
ErrExit:
return hr;
} // CLRPrivTypeCacheWinRT::ContainsType
#endif //!DACCESS_COMPILE
//=====================================================================================================================
//
// Checks if the type (szNamespace/szClassName) is present in the assembly pAssembly.
//
// Return value:
// S_OK - Type is present in the assembly.
// S_FALSE - Type is not present.
// No other error codes or success codes
//
HRESULT
CLRPrivTypeCacheWinRT::ContainsTypeHelper(
PTR_Assembly pAssembly,
LPCUTF8 szNamespace,
LPCUTF8 szClassName)
{
CONTRACTL
{
if (FORBIDGC_LOADER_USE_ENABLED()) NOTHROW; else THROWS;
if (FORBIDGC_LOADER_USE_ENABLED()) GC_NOTRIGGER; else GC_TRIGGERS;
MODE_ANY;
SUPPORTS_DAC;
}
CONTRACTL_END
NameHandle typeName(szNamespace, szClassName);
// Find the type in the assembly (use existing hash of all type names defined in the assembly)
TypeHandle thType;
mdToken tkType;
Module * pTypeModule;
mdToken tkExportedType;
if (pAssembly->GetLoader()->FindClassModuleThrowing(
&typeName,
&thType,
&tkType,
&pTypeModule,
&tkExportedType,
nullptr, // pFoundEntry
nullptr, // pLookInThisModuleOnly
Loader::DontLoad))
{
return S_OK;
}
else
{
return S_FALSE;
}
} // CLRPrivTypeCacheWinRT::ContainsTypeHelper
//=====================================================================================================================
//
// Checks if the assembly pPrivAssembly (referenced from assembly in pAppDomain) contains type (szNamespace/szClassName).
// Fills *ppAssembly if it contains the type.
//
// Return value:
// S_OK - Contains type (fills *ppAssembly).
// S_FALSE - Does not contain the type (*ppAssembly is not filled).
// E_FAIL - Assembly is not loaded.
//
HRESULT
CLRPrivTypeCacheWinRT::ContainsTypeIfLoaded(
PTR_AppDomain pAppDomain,
PTR_ICLRPrivAssembly pPrivAssembly,
LPCUTF8 szNamespace,
LPCUTF8 szClassName,
PTR_Assembly * ppAssembly)
{
CONTRACTL
{
NOTHROW;
GC_NOTRIGGER;
FORBID_FAULT;
MODE_ANY;
SUPPORTS_DAC;
}
CONTRACTL_END
HRESULT hr;
PTR_DomainAssembly pDomainAssembly = pAppDomain->FindAssembly(pPrivAssembly);
if (pDomainAssembly == nullptr || !pDomainAssembly->IsLoaded())
{ // The assembly is not loaded into the AppDomain
return E_FAIL;
}
PTR_Assembly pAssembly = dac_cast<PTR_Assembly>(pDomainAssembly->GetLoadedAssembly());
if (pAssembly == nullptr)
{ // The assembly failed to load earlier (exception is cached on pDomainAssembly)
return E_FAIL;
}
hr = ContainsTypeHelper(pAssembly, szNamespace, szClassName);
_ASSERTE((hr == S_OK) || (hr == S_FALSE));
if (hr == S_OK)
{ // The type is present in the assembly
*ppAssembly = pAssembly;
}
return hr;
} // CLRPrivTypeCacheWinRT::ContainsTypeIfLoaded
#ifndef DACCESS_COMPILE
#ifndef CROSSGEN_COMPILE
//=====================================================================================================================
// Raises user event DesignerNamespaceResolveEvent to get a list of files for this namespace.
//
void
CLRPrivTypeCacheWinRT::RaiseDesignerNamespaceResolveEvent(
LPCWSTR wszNamespace,
CLRPrivBinderUtil::WStringListHolder * pFileNameList)
{
STANDARD_VM_CONTRACT;
_ASSERTE(pFileNameList != nullptr);
GCX_COOP();
struct _gc {
STRINGREF str;
} gc;
ZeroMemory(&gc, sizeof(gc));
GCPROTECT_BEGIN(gc);
MethodDescCallSite onNamespaceResolve(METHOD__WINDOWSRUNTIMEMETATADA__ON_DESIGNER_NAMESPACE_RESOLVE);
gc.str = StringObject::NewString(wszNamespace);
ARG_SLOT args[1] =
{
ObjToArgSlot(gc.str)
};
PTRARRAYREF ResultingFileNameArrayRef = (PTRARRAYREF) onNamespaceResolve.Call_RetOBJECTREF(args);
if (ResultingFileNameArrayRef != NULL)
{
for (DWORD i = 0; i < ResultingFileNameArrayRef->GetNumComponents(); i++)
{
STRINGREF ResultingFileNameRef = (STRINGREF) ResultingFileNameArrayRef->GetAt(i);
_ASSERTE(ResultingFileNameRef != NULL); // Verified in the managed code OnDesignerNamespaceResolveEvent
SString sFileName;
ResultingFileNameRef->GetSString(sFileName);
_ASSERTE(!sFileName.IsEmpty()); // Verified in the managed code OnDesignerNamespaceResolveEvent
pFileNameList->InsertTail(sFileName.GetUnicode());
}
}
GCPROTECT_END();
} // CLRPrivTypeCacheWinRT::RaiseDesignerNamespaceResolveEvent
//=====================================================================================================================
#endif // CROSSGEN_COMPILE
CLRPrivTypeCacheWinRT * CLRPrivTypeCacheWinRT::s_pSingleton = nullptr;
//=====================================================================================================================
CLRPrivTypeCacheWinRT *
CLRPrivTypeCacheWinRT::GetOrCreateTypeCache()
{
STANDARD_VM_CONTRACT;
if (s_pSingleton == nullptr)
{
ReleaseHolder<CLRPrivTypeCacheWinRT> pTypeCache;
pTypeCache = clr::SafeAddRef(new CLRPrivTypeCacheWinRT());
if (InterlockedCompareExchangeT<decltype(s_pSingleton)>(&s_pSingleton, pTypeCache, nullptr) == nullptr)
{
pTypeCache.SuppressRelease();
}
}
return s_pSingleton;
}
//=====================================================================================================================
#endif //!DACCESS_COMPILE
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