Method ja

rhino/src/main/java/org/mozilla/javascript/NativeJSON.java:454–522

(Scriptable value, StringifyState state)

    }

    private static String ja(Scriptable value, StringifyState state) {
        Object trackValue = value, unwrapped = null;
        if (value instanceof Wrapper) {
            trackValue = unwrapped = ((Wrapper) value).unwrap();
        }
        if (state.stack.contains(trackValue)) {
            throw ScriptRuntime.typeErrorById("msg.cyclic.value", trackValue.getClass().getName());
        }
        state.stack.push(trackValue);

        String stepback = state.indent;
        state.indent = state.indent + state.gap;
        ArrayList<Object> partial = new ArrayList<>();

        if (unwrapped != null) {
            Object[] elements = null;
            if (unwrapped.getClass().isArray()) {
                int length = Array.getLength(unwrapped);
                elements = new Object[length];
                for (int i = 0; i < length; i++) {
                    elements[i] = Context.javaToJS(Array.get(unwrapped, i), state.scope, state.cx);
                }
            } else if (unwrapped instanceof Collection) {
                Collection<?> collection = (Collection<?>) unwrapped;
                elements = new Object[collection.size()];
                int i = 0;
                for (Object o : collection) {
                    elements[i++] = Context.javaToJS(o, state.scope, state.cx);
                }
            }
            if (elements != null) {
                value = state.cx.newArray(state.scope, elements);
            }
        }

        long len = ((NativeArray) value).getLength();

        for (long index = 0; index < len; index++) {
            Object strP;
            if (index > Integer.MAX_VALUE) {
                strP = str(Long.toString(index), value, state);
            } else {
                strP = str(Integer.valueOf((int) index), value, state);
            }
            if (strP == Undefined.instance) {
                partial.add("null");
            } else {
                partial.add(strP);
            }
        }

        final String finalValue;

        if (partial.isEmpty()) {
            finalValue = "[]";
        } else {
            if (state.gap.length() == 0) {
                finalValue = '[' + join(partial, ",") + ']';