Method getThis

src/main/java/org/dynjs/ir/Interpreter.java:206–218

(Object ref)

    // FIXME: move to helper class
    public static Object getThis(Object ref) {
        Object thisValue = null;

        // FIXME: We can probably remove this check for IRJSFunctions since we will not be using references
        if (ref instanceof Reference) {
            if (((Reference) ref).isPropertyReference()) {
                thisValue = ((Reference) ref).getBase();
            } else {
                thisValue = ((EnvironmentRecord) ((Reference) ref).getBase()).implicitThisValue();
            }
        }
        return thisValue;
    }

    // FIXME: This breaks for non-numeric uses if isSubtraction
    private static Object add(ExecutionContext context, Object lhs, Object rhs) {