Hi. Given some JS in a string, I'd like to be able to evaluate it in a
scope of my choice -- that is -- to set apparent global object for the
JS to be something other than the context's actual global object. For
example, if the JS is:

var doggie = "laika";

Then I'd like to be able to, when running that JS, have the "doggie"
property of an arbitrary object of my choosing set to "laika".

This would be the equivalent how, for JS_ExecuteScript() in the
SpiderMonkey world (http://developer.mozilla.org/en/SpiderMonkey/
JSAPI_Reference/JS_ExecuteScript), the second argument to the function
is the apparent global object for the code to execute.

I explored the "eval"-based solution described at
http://markmail.org/message/3xw4eyrgunoiqobc but that doesn't work if
the object-provided-as-alternative-global-object doesn't have an
"eval" function attached to it. (Which objects generally don't.)

The wrapExports mechanism that v8cgi uses I don't think is applicable
for me since i don't know in advance the names of the variables that
will be set inside the scope (as v8cgi does with "exports").

Any help/thoughts? Have others encountered this need?

Thanks,
David

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