private unsafe static bool FilterCustomAttributeRecord(CustomAttributeRecord caRecord, MetadataImport scope, ref Assembly lastAptcaOkAssembly, RuntimeModule decoratedModule, MetadataToken decoratedToken, RuntimeType attributeFilterType, bool mustBeInheritable, object[] attributes, IList derivedAttributes, out RuntimeType attributeType, out IRuntimeMethodInfo ctor, out bool ctorHasParameters, out bool isVarArg)
        {
            ctor              = null;
            attributeType     = null;
            ctorHasParameters = false;
            isVarArg          = false;
            IntPtr signature = caRecord.blob.Signature;
            IntPtr intPtr    = (IntPtr)((void *)((byte *)((void *)signature) + caRecord.blob.Length));

            attributeType = (decoratedModule.ResolveType(scope.GetParentToken(caRecord.tkCtor), null, null) as RuntimeType);
            if (!attributeFilterType.IsAssignableFrom(attributeType))
            {
                return(false);
            }
            if (!CustomAttribute.AttributeUsageCheck(attributeType, mustBeInheritable, attributes, derivedAttributes))
            {
                return(false);
            }
            if ((attributeType.Attributes & TypeAttributes.WindowsRuntime) == TypeAttributes.WindowsRuntime)
            {
                return(false);
            }
            RuntimeAssembly runtimeAssembly  = (RuntimeAssembly)attributeType.Assembly;
            RuntimeAssembly runtimeAssembly2 = (RuntimeAssembly)decoratedModule.Assembly;

            if (runtimeAssembly != lastAptcaOkAssembly && !RuntimeAssembly.AptcaCheck(runtimeAssembly, runtimeAssembly2))
            {
                return(false);
            }
            lastAptcaOkAssembly = runtimeAssembly2;
            ConstArray methodSignature = scope.GetMethodSignature(caRecord.tkCtor);

            isVarArg          = ((methodSignature[0] & 5) > 0);
            ctorHasParameters = (methodSignature[1] > 0);
            if (ctorHasParameters)
            {
                ctor = ModuleHandle.ResolveMethodHandleInternal(decoratedModule.GetNativeHandle(), caRecord.tkCtor);
            }
            else
            {
                ctor = attributeType.GetTypeHandleInternal().GetDefaultConstructor();
                if (ctor == null && !attributeType.IsValueType)
                {
                    throw new MissingMethodException(".ctor");
                }
            }
            MetadataToken token = default(MetadataToken);

            if (decoratedToken.IsParamDef)
            {
                token = new MetadataToken(scope.GetParentToken(decoratedToken));
                token = new MetadataToken(scope.GetParentToken(token));
            }
            else if (decoratedToken.IsMethodDef || decoratedToken.IsProperty || decoratedToken.IsEvent || decoratedToken.IsFieldDef)
            {
                token = new MetadataToken(scope.GetParentToken(decoratedToken));
            }
            else if (decoratedToken.IsTypeDef)
            {
                token = decoratedToken;
            }
            else if (decoratedToken.IsGenericPar)
            {
                token = new MetadataToken(scope.GetParentToken(decoratedToken));
                if (token.IsMethodDef)
                {
                    token = new MetadataToken(scope.GetParentToken(token));
                }
            }
            RuntimeTypeHandle sourceTypeHandle = token.IsTypeDef ? decoratedModule.ModuleHandle.ResolveTypeHandle(token) : default(RuntimeTypeHandle);

            return(RuntimeMethodHandle.IsCAVisibleFromDecoratedType(attributeType.TypeHandle, ctor, sourceTypeHandle, decoratedModule));
        }