David-Sarah Hopwood wrote: > David-Sarah Hopwood wrote: >> Brendan Eich wrote: >>> On Jan 10, 2010, at 9:30 PM, David-Sarah Hopwood wrote: >>>> Brendan Eich wrote: >>>>> For many current applications, the frozen |this| object is not necessary >>>>> or desirable in global code. The essential characteristic of modules, >>>>> isolation for each module's "inside" from unimported effects of other >>>>> modules, does not necessarily mean no mutation of primordial objects. >>>> >>>> On the contrary, it does necessarily mean that. If you can mutate >>>> primordial objects, then there is no isolation of any module. There >>>> may be a reduction in the possibilities for accidental interference >>>> between modules, but that should be distinguished from isolation. >>> >>> Who said primordial objects are shared between modules? >> >> Having separate copies of primordial objects for each module is not >> sufficient to ensure isolation. If one module has access to some object >> obj of another, it can also get access to that object's prototype chain >> using Object.getPrototypeOf(obj), or obj.constructor.prototype. > > Correction: obj.constructor[.prototype] gives access to the constructor > chain.
Ignore this; there was nothing to be corrected here. -- David-Sarah Hopwood ⚥ http://davidsarah.livejournal.com
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