_expression = new EdmNullImpl(edm, exp.asNull()); } else if (exp.isNavigationPropertyPath()) { _expression = new EdmNavigationPropertyPathImpl(edm, exp.asNavigationPropertyPath()); } else if (exp.isPath()) { _expression = new EdmPathImpl(edm, exp.asPath());
_expression = new EdmNullImpl(edm, exp.asNull()); } else if (exp.isNavigationPropertyPath()) { _expression = new EdmNavigationPropertyPathImpl(edm, exp.asNavigationPropertyPath()); } else if (exp.isPath()) { _expression = new EdmPathImpl(edm, exp.asPath());