produce nashorn compatible command line script

[pd40]

OpenJDK 8.0 will include the new nashorn javascript engine instead of rhino.

jshint 2.4.3 rhino.js script appears to work with nashorn with one minor modification. Changing the rhino shell readFile() function call to nashorn compatible readFully()

filenames.forEach(function (name) {
    var input = readFully(name);

    if (!input) {
      print("jshint: Couldn't open file " + name);
      quit(1);
    }

The nashorn script engine does not suffer from #1422

[valueof]

Will there still be readFile? Will the var input = (typeof readFully == "function" ? readFully : readFile)(name); approach work?

[pd40]

This seems to work with rhino & nashorn

var readFileFully = (typeof readFully === "function" ? readFully : readFile);