Class Subscope

src/main/java/fieldbox/boxes/Box.java:772–839

todo: if 'prop' is persistent, so should prefix+'prop'

	/**
	 * todo: if 'prop' is persistent, so should prefix+'prop'
	 */
	static public class Subscope implements fieldlinker.AsMap {
		protected String prefix;
		protected fieldlinker.AsMap delegateTo;

		public Subscope(fieldlinker.AsMap from) {

			this.prefix = Execution.context.get()
				.peek().properties.getOrConstruct(IO.id);
			this.delegateTo = from;
		}

		public Subscope(Box prefixFrom, Box from) {
			this.prefix = prefixFrom.properties.getOrConstruct(IO.id);
			this.delegateTo = from;
		}

		public Subscope(String prefixFrom, Box from) {
			this.prefix = prefixFrom;
			this.delegateTo = from;
		}


		@Override
		public boolean asMap_isProperty(String p) {
			return delegateTo.asMap_isProperty(prefix + p);
		}

		@Override
		public Object asMap_call(Object a, Object b) {
			return delegateTo.asMap_call(a, b);
		}

		@Override
		public Object asMap_get(String p) {
			return delegateTo.asMap_get(prefix + p);
		}


		@Override
		public boolean asMap_delete(Object o) {
			return delegateTo.asMap_delete(prefix + o);
		}

		@Override
		public Object asMap_set(String p, Object o) {
			return delegateTo.asMap_set(prefix + p, o);
		}

		@Override
		public Object asMap_new(Object a) {
			return delegateTo.asMap_new(a);
		}

		@Override
		public Object asMap_new(Object a, Object b) {
			return delegateTo.asMap_new(a, b);