"--polyglot" option does not appear to be available through the passed gulp options, no es6 support.

[benderTheCrime]

Related to this issue:
documentationjs/documentation#112

ES6 documentation cannot be created without the --polyglot option. It does not appear as though I can pass this argument via gulp, as demonstrated by my task:

gulp.task('documentation', function() {
    gulp.src(src)
        .pipe(documentation({
            format: 'html',
            polyglot: true
        }))
        .pipe(gulp.dest('md-documentation'));
});

and the error I get as a result:

events.js:141
      throw er; // Unhandled 'error' event
            ^
Error: Parsing file *: 'import' and 'export' may appear only with 'sourceType: module' (4:0)

but not via the CLI:
documentation * --polyglot

[tmcw]

ES6 documentation cannot be created without the --polyglot option.

While this repo does need a version bump on its documentation dependency in order to support the --polyglot option, as mentioned on the other ticket: this is a misunderstanding:

• --polyglot is for non-JavaScript code
• Default mode aims to cover ES5 and ES6 code

What you've stumbled on is a bug in espree/ast-types. Once that's fixed, you won't need to pass polyglot as an option.