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From "Damien Katz (JIRA)" <>
Subject [jira] Created: (COUCHDB-103) Document sealing no longer works with Mozilla spidermonkey 1.8
Date Fri, 08 Aug 2008 17:47:44 GMT
Document sealing no longer works with Mozilla spidermonkey 1.8

                 Key: COUCHDB-103
             Project: CouchDB
          Issue Type: Bug
          Components: JavaScript View Server
    Affects Versions: 0.7.2, 0.8
         Environment: all
            Reporter: Damien Katz
            Assignee: Damien Katz
             Fix For: 0.8.1

In the spidermonkey engine, we use a built-in function sealing for sealing documents so that
map functions of arrays no longer works. Array sealing no longer works with javascript 1.8,
meaning our document that contain arrays cannot be sealed. The sealing is meant to prevent
map functions from modifying the same document that will be passed to other map functions.

The (hopefully temporary) fix here is to simply remove the document sealing, and map function
placed in the same design document will have to be trustworthy that they don't modify the
document (the same document is passed to multiple map functions). Non-trustworthy map functions
can be placed in their own design documents, they will be run in isolation.

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