Circular references

[tmarzec]

Before objects are sent over from the device, they are converted using JSON.stringify function. Because it does not support stringifying objects with cyclic references, it doesn't work here too. The current behavior is that it throws an exception and the objects are not sent over.

To reproduce this, create a schema:

{
    name: 'schemaName',
    properties: {
        prop: 'schemaName?',
    }
}

Then consider a scenario, when the object is first created (with null assigned to prop). Then the property can be assigned so that the object points to itself.

This would be fixed after solving #85.

[tmarzec]

I've changed that behavior so that it sends over an empty object in place of the one with a circular reference.

realm-flipper-plugin/realm-flipper-plugin-device/src/ConvertFunctions.tsx

Lines 50 to 56 in 8a27643

	let after;
	try {
	after = JSON.parse(JSON.stringify(obj, replacer));
	} catch (err) {
	// a walkaround for #85
	return {};
	}