I was the one who authored that commit, but thanks. Incidentally, I left off checks for the following behaviour which also uses the OwnPropertyKeys ordering, on the basis that they're generally too obscure to manifest in usual programs (but then, what do I know?):
* Object.freeze/Object.seal/Object.isFrozen/Object.isSealed (when given a proxy, springs its "defineProperty" trap for each element returned by OwnPropertyKeys (unless "ownKeys" is also trapped and the handler provides its own order)) * Object.defineProperties (when given a proxy as arg 1, springs its "getOwnPropertyDescriptor" trap for each element returned by OwnPropertyKeys (unless "ownKeys" is also trapped and the handler provides its own order)) Presumably, Object.getOwnPropertyDescriptors in ES7 will also fire "defineProperty" in OwnPropertyKeys order. (It'd be kind of odd if it didn't, especially since such internal details are now exposed to user code.) _______________________________________________ es-discuss mailing list es-discuss@mozilla.org https://mail.mozilla.org/listinfo/es-discuss