Status: Started Owner: erights Labels: Type-Enhancement Priority-Medium Maintainability Client-CajaCapTP
New issue 1099 by erights: cajita.newTable(true) should become basis for trademarking and sealer-unsealer pairs http://code.google.com/p/google-caja/issues/detail?id=1099 Even though cajita.newTable(true) makes a table that is not even a weak-key table much less an EphemeronTable, the Trademarking pattern shown at http://wiki.ecmascript.org/doku.php?id=strawman:weak_references#trademarking and the Sealer / Unsealer pattern shown at http://wiki.ecmascript.org/doku.php?id=strawman:weak_references#sealer_unsealer_pairs should work fine as built on these tables. The "true" parameter means "If you have to choose (as we do today) use the key's lifetime rather the table's lifetime as the basis for the associated value's lifetime. Concretely, this means that such tables are essentially unique unmentionable property names, with the table's storage distributed among the table's keys. The values are stored on the keys as the value of this unmentionable property. The only value hung off the key by the Trademarking pattern is "true", and the only value hung off the box by the Sealer / Unsealer pattern is the cargo "sealed within" this box. In both cases, the storage leak that results from using cajita.newTable(true) is that these values stick around as long as the trademarked object or box do, even if the trademark checker or the unsealer, respectively, have already been dropped. This is exactly as leaky as the current special case implementation of these services. We should then use this trademarking service to trademark various records made either by cajita.js itself or by various bits of code written in Cajita. For example, the tables made by newTable() could themselves be trademarked to indicate that they are such a table. -- You received this message because you are listed in the owner or CC fields of this issue, or because you starred this issue. You may adjust your issue notification preferences at: http://code.google.com/hosting/settings --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Google Caja Discuss" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/google-caja-discuss?hl=en -~----------~----~----~----~------~----~------~--~---
