C++ (Cpp) Assembly::GetLoaderAllocatorの例

コード例 #1

ファイル: commodule.cpp プロジェクト: A-And/coreclr

//******************************************************************************
//
// GetMemberRefToken
// This function will return a MemberRef token given a MethodDef token and the module where the MethodDef/FieldDef is defined.
//
//******************************************************************************
INT32 QCALLTYPE COMModule::GetMemberRef(QCall::ModuleHandle pModule, QCall::ModuleHandle pRefedModule, INT32 tr, INT32 token)
{
    QCALL_CONTRACT;
    
    mdMemberRef             memberRefE      = 0; 

    BEGIN_QCALL;

    RefClassWriter * pRCW = pModule->GetReflectionModule()->GetClassWriter(); 
    _ASSERTE( pRCW );
    
    LPCUTF8         szName;
    ULONG           cbComSig;
    PCCOR_SIGNATURE pvComSig;
    
    if (TypeFromToken(token) == mdtMethodDef)
    {
        IfFailThrow(pRefedModule->GetMDImport()->GetNameOfMethodDef(token, &szName));
        IfFailThrow(pRefedModule->GetMDImport()->GetSigOfMethodDef(token, &cbComSig, &pvComSig));
    }
    else
    {
        IfFailThrow(pRefedModule->GetMDImport()->GetNameOfFieldDef(token, &szName));
        IfFailThrow(pRefedModule->GetMDImport()->GetSigOfFieldDef(token, &cbComSig, &pvComSig));
    }
    
    MAKE_WIDEPTR_FROMUTF8(wzName, szName);

    // Translate the method sig into this scope 
    //
    Assembly * pRefedAssembly = pRefedModule->GetAssembly();
    Assembly * pRefingAssembly = pModule->GetAssembly();

    if (pRefedAssembly->IsCollectible() && pRefedAssembly != pRefingAssembly)
    {
        if (pRefingAssembly->IsCollectible())
            pRefingAssembly->GetLoaderAllocator()->EnsureReference(pRefedAssembly->GetLoaderAllocator());
        else
            COMPlusThrow(kNotSupportedException, W("NotSupported_CollectibleBoundNonCollectible"));
    }

    SafeComHolderPreemp<IMetaDataAssemblyEmit> pAssemblyEmit;
    IfFailThrow( pRefingAssembly->GetManifestModule()->GetEmitter()->QueryInterface(IID_IMetaDataAssemblyEmit, (void **) &pAssemblyEmit) );

    CQuickBytes             qbNewSig; 
    ULONG                   cbNewSig;      

    IfFailThrow( pRefedModule->GetMDImport()->TranslateSigWithScope(
        pRefedAssembly->GetManifestImport(), 
        NULL, 0,        // hash value
        pvComSig, 
        cbComSig, 
        pAssemblyEmit,  // Emit assembly scope.
        pRCW->GetEmitter(), 
        &qbNewSig, 
        &cbNewSig) );  

    mdTypeRef               tref;

    if (TypeFromToken(tr) == mdtTypeDef)
    {
        // define a TypeRef using the TypeDef
        DefineTypeRefHelper(pRCW->GetEmitter(), tr, &tref);
    }
    else 
        tref = tr;

    // Define the memberRef
    IfFailThrow( pRCW->GetEmitter()->DefineMemberRef(tref, wzName, (PCCOR_SIGNATURE) qbNewSig.Ptr(), cbNewSig, &memberRefE) ); 

    END_QCALL;

    // assign output parameter
    return (INT32)memberRefE;
}