KDevelop script gives error on `view.selection()`

Question

I am trying to write the simplest ever snippet for Kdevelop (5.1). It should simply take my selected text and embrace it with #if 0 ... #endif.

#if 0
my current selection
#endif

Snippet code is:

#if 0 
${view.selection()}
#endif

And all I receive back is the error:

#if 0 
ReferenceError: Can't find variable: Range
#endif

All I know is that this Kate / Kdevelop snippets use Javascript, so I think this simple view.selection() oughta work, but it doesn't.

Is there a way to accomplish what I want? How to fix this Range error?

Thanks.

EDIT:

I added a function selection_or_nothing() to the functions tab, a require ("range.js") before it and changed my snippet to call it.

require ("range.js");
function selection_or_nothing() 
{
    if ( view.hasSelection() )
        return view.selection();
    return "";
}

Snippet:

#if 0
${selection_or_nothing()}
#endif  // ${comment}

This is what I have now:

#if 0
Range(Cursor(200,0), Cursor(201,0))
#endif

Answer 1

This works here:

#if 0
${selection()}
#endif

I think you need to use view.selectedText() instead of view.selection(), or this pre-defined function.