958669 - Want literal String

Status: NEW

(Core :: JavaScript Engine, enhancement, P3)

Description

[[e-mail]]

For some time XPCStringConvert has been able to pass string buffer references into JavaScript which then releases them when the String object gets garbage collected.

In bug 514173 I added support for string constants based on jcranmer's code that subverts the JSExternalString type by passing a finaliser that does nothing, but bz thinks that there should be a better way of doing this (if there isn't already, it should be created).

Comment 1

[Boris Zbarsky [:bzbarsky]]

Talked about this with some folks on #jsapi yesterday, actually.  There was a proposal to create a JS_NewStaticString which basically promises to do nothing with the buffer.  We could implement it internally in jseng using the same custom finalizer bit for now, and then create a better impl under the hood as we work no nursery-allocating strings...