Method writeObject

output/java8/1.4.19/Interpreter.java:688–721

Generic method to emit text for an object. It differentiates between templates, iterable objects, and plain old Java objects (POJOs)

(STWriter out, InstanceScope scope, Object o, String[] options)

     */

    protected int writeObject(STWriter out, InstanceScope scope, Object o, String[] options) {
        int n = 0;
        if ( o==null ) {
            if ( options!=null && options[Option.NULL.ordinal()] !=null ) {
                o = options[Option.NULL.ordinal()];
            }
            else return 0;
        }
        if ( o instanceof ST ) {
            scope = new InstanceScope(scope, (ST)o);
            if ( options!=null && options[Option.WRAP.ordinal()] !=null ) {
                // if we have a wrap string, then inform writer it
                // might need to wrap
                try {
                    out.writeWrap(options[Option.WRAP.ordinal()]);
                }
                catch (IOException ioe) {
                    errMgr.IOError(scope.st, ErrorType.WRITE_IO_ERROR, ioe);
                }
            }
            n = exec(out, scope);
        }
        else {
            o = convertAnythingIteratableToIterator(scope, o); // normalize
            try {
                if ( o instanceof Iterator ) n = writeIterator(out, scope, o, options);
                else n = writePOJO(out, scope, o, options);
            }
            catch (IOException ioe) {
                errMgr.IOError(scope.st, ErrorType.WRITE_IO_ERROR, ioe, o);
            }
        }
        return n;
    }

    protected int writeIterator(STWriter out, InstanceScope scope, Object o, String[] options) throws IOException {
        if ( o==null ) return 0;