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chumer avatar chumer commented on June 9, 2024

Your example is missing a few things to fully reproduce. I tried my best to guess what you are trying to do with this example.

	static class MyProxyObject implements ProxyObject {

		@Override
		public Object getMember(String key) {
			return null;
		}

		@Override
		public Object getMemberKeys() {
			return ProxyArray.fromArray();
		}

		@Override
		public boolean hasMember(String key) {
			return false;
		}

		@Override
		public void putMember(String key, Value value) {
		}
		
	}


	public static void main(String... args) {
		try (Context c = Context.create()) {
			MyProxyObject proxy= new MyProxyObject();
			c.getBindings("js").putMember("myProxyObject", proxy);
			Value v = c.eval("js", "myProxyObject");
			
			// you can also convert objects to values like this if your object is a PolyglotMap.
			v = c.asValue(v);
			
			// if you don't have Context instance hande you can also do it like this:
			v = Value.asValue(v);
			
			
			System.out.println("isProxy:" + v.isProxyObject());
			System.out.println("asProxy:" + v.asProxyObject());
			System.out.println("sameProxy:" + (v.asProxyObject() == proxy));
		}
	} 

This prints:

isProxy:true
asProxy:org.example.embedding.Main3$MyProxyObject@6719a5b8
sameProxy:true

As you can see you can get the original proxy object back with a Value instance. And there are several ways to obtain a Value instance.

Some more docs can be found here: https://www.graalvm.org/latest/reference-manual/embed-languages/#computed-arrays-using-polyglot-proxies

Feel free to reopen if the question is not answered.

from graal.

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