Pchp.CodeAnalysis.FlowAnalysis.TypeRefContext.UpdateMasks C# (CSharp) Method

        private void UpdateMasks(ITypeRef/*!*/typeRef, int index)
        {
            Debug.Assert(index >= 0 && index < TypeRefMask.IndicesCount);

            ulong mask = (ulong)1 << index;

            if (typeRef.IsObject) _isObjectMask |= mask;
            if (typeRef.IsArray) _isArrayMask |= mask;
            if (typeRef.IsLambda) _isLambdaMask |= mask;

            if (typeRef.IsPrimitiveType)
            {
                _isPrimitiveMask |= mask;
                switch (typeRef.TypeCode)
                {
                    case PhpTypeCode.Boolean:
                        _isBoolMask = mask;
                        break;
                    case PhpTypeCode.Long:
                        _isLongMask |= mask;
                        break;
                    case PhpTypeCode.Double:
                        _isDoubleMask = mask;
                        break;
                    case PhpTypeCode.String:
                        _isStringMask = mask;
                        break;
                    case PhpTypeCode.WritableString:
                        _isWritableStringMask = mask;
                        break;
                }
            }
        }