> arc lint -- support/xhpast/ast.hpp 
>>> Lint for support/xhpast/astnode.hpp:


   Warning  (Cppcheck) noExplicitConstructor
    Class 'Node' has a constructor with 1 argument that is not explicit.

              40         l_tok(-1),
              41         r_tok(-1) {}
              42 
    >>>       43       Node(unsigned int type) :
              44         type(type),
              45         l_tok(-1),
              46         r_tok(-1) {}