On 07/13/2012 11:28 AM, Brendan Eich wrote: > Steve Fink wrote: >> Another hole is when we use the pointer value to compute a hash code, >> which we unfortunately do pretty often. For JSObjects, at least, it >> would be really nice if we had an identity value to use instead. >> dmandelin and I talked about this, and initially I assumed this would >> require bloating up every JSObject, but David pointed out that we could >> add it on as an optional property (with a private name?) so that it >> would only affect objects used as keys. > > You don't know which those are and don't want to add it on first use as key, > rather see next para.
Could you elaborate on why you "don't want to add it on first use as key"? It's not obvious to me why this would be the case, or what would be the unwanted side effects of doing so. Jeff _______________________________________________ dev-tech-js-engine-internals mailing list dev-tech-js-engine-internals@lists.mozilla.org https://lists.mozilla.org/listinfo/dev-tech-js-engine-internals
