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// Copyright 2023 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
const {session, contextGroup, Protocol} = InspectorTest.start('Checks that only one of JSGlobalObject/JSGlobalProxy shows up in the prototype chain');
function findPrototypeObjectId(response) {
const { result: { internalProperties } } = response;
for (const prop of internalProperties || []) {
if (prop.name === '[[Prototype]]') {
return prop;
}
}
}
async function logPrototypeChain(objectId) {
while (true) {
const response = await Protocol.Runtime.getProperties({ objectId });
const prototype = findPrototypeObjectId(response);
if (!prototype) break;
InspectorTest.logMessage(prototype);
objectId = prototype.value.objectId;
}
}
(async () => {
InspectorTest.log('Prototype chain for "globalThis":');
const { result: { result } } = await Protocol.Runtime.evaluate({ expression: 'globalThis' });
InspectorTest.logMessage(result);
await logPrototypeChain(result.objectId);
InspectorTest.log('\nPrototype chain for "var weird = {}; weird.__proto__ = globalThis; weird;":')
const { result: { result: result2 } } = await Protocol.Runtime.evaluate({ expression: 'var weird = {}; weird.__proto__ = globalThis; weird;' });
InspectorTest.logMessage(result2);
await logPrototypeChain(result2.objectId);
InspectorTest.completeTest();
})();
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