/** * Binds the source mirror object's properties to the target object. Binding * properties allows two-way read/write for the properties of the source object. * All inherited, enumerable properties are also bound. This method is used to * to make 'with' statement work with ScriptObjectMirror as scope object. * * @param target the target object to which the source object's properties are bound * @param source the source object whose properties are bound to the target * @return the target object after property binding */ public static Object bindAllProperties(final ScriptObject target, final ScriptObjectMirror source) { final Set<String> keys = source.keySet(); // make accessor properties using dynamic invoker getters and setters final AccessorProperty[] props = new AccessorProperty[keys.size()]; int idx = 0; for (final String name : keys) { final MethodHandle getter = Bootstrap.createDynamicInvoker("dyn:getMethod|getProp|getElem:" + name, MIRROR_GETTER_TYPE); final MethodHandle setter = Bootstrap.createDynamicInvoker("dyn:setProp|setElem:" + name, MIRROR_SETTER_TYPE); props[idx] = AccessorProperty.create(name, 0, getter, setter); idx++; } target.addBoundProperties(source, props); return target; }
/** * Binds the source mirror object's properties to the target object. Binding * properties allows two-way read/write for the properties of the source object. * All inherited, enumerable properties are also bound. This method is used to * to make 'with' statement work with ScriptObjectMirror as scope object. * * @param target the target object to which the source object's properties are bound * @param source the source object whose properties are bound to the target * @return the target object after property binding */ public static Object bindAllProperties(final ScriptObject target, final ScriptObjectMirror source) { final Set<String> keys = source.keySet(); // make accessor properties using dynamic invoker getters and setters final AccessorProperty[] props = new AccessorProperty[keys.size()]; int idx = 0; for (final String name : keys) { props[idx] = createAccessorProperty(name); idx++; } target.addBoundProperties(source, props); return target; }
private static AccessorProperty createAccessorProperty(final String name) { final MethodHandle getter = Bootstrap.createDynamicInvoker(name, NashornCallSiteDescriptor.GET_METHOD_PROPERTY, MIRROR_GETTER_TYPE); final MethodHandle setter = Bootstrap.createDynamicInvoker(name, NashornCallSiteDescriptor.SET_PROPERTY, MIRROR_SETTER_TYPE); return AccessorProperty.create(name, 0, getter, setter); }