Operand to 'typeid'

[fuaditrockz]

I've update my npm version with 5.3.0. And I'm install this repo on npm, I got many warning notifications that say "warning: expression with side effects will be evaluated despite being used as an operand to 'typeid'".

or like this..
../src/libsass/src/ast.hpp:2101:21: warning: expression with side effects will be evaluated despite being used as an operand to 'typeid'
[-Wpotentially-evaluated-expression]
typeid(*(*this)[0]) == typeid(Parent_Selector);

And this warning display on many times.

How about this? It is okay?