on Wed Oct 26 2016, Slava Pestov <swift-dev-AT-swift.org> wrote: > The tests are there to ensure the reflection output doesn’t > accidentally break or change.
Unless you have reason to think it will break or change *only* for some particular stdlib types, and that reflecting the implementation details of those types is somehow an important use-case, you can easily verify that just as well by using some types that *aren't* in the standard library. > However if you’re updating the layout of those types you need to > update the tests. > > Slava > >> On Oct 26, 2016, at 5:41 PM, Michael Gottesman via swift-dev >> <swift-dev@swift.org> wrote: >> >> >>> On Oct 26, 2016, at 5:29 PM, Alexis via swift-dev <swift-dev@swift.org > <mailto:swift-dev@swift.org>> wrote: >>> >>> I’m not clear on what the reflection tests are attempting to >>> actually verify. Just that we don’t change the internal layout of >>> these types accidentally? We’re churning up the layouts of a lot of >>> the collections to get things all set up for ABI stability, which >>> means mechanically updating these tests to expect “whatever output >>> we now happen to output”. >>> >>> In Dave’s initial eager bridging stuff he left a comment indicating >>> that these are incorrectly relying on implementation >>> details. Without any context, I’m inclined to agree. The fact that >>> somewhere deep in the guts of String there lives an enum doesn’t >>> seem important to verify. (how big it is, and how many extra >>> inhabitants it has, does seem worth verifying longterm). >> >> I think this was originally done by Dave Farler. >> >> Michael >> >>> _______________________________________________ >>> swift-dev mailing list >>> swift-dev@swift.org <mailto:swift-dev@swift.org> >>> https://lists.swift.org/mailman/listinfo/swift-dev >> >> _______________________________________________ >> swift-dev mailing list >> swift-dev@swift.org >> https://lists.swift.org/mailman/listinfo/swift-dev > > _______________________________________________ > swift-dev mailing list > swift-dev@swift.org > https://lists.swift.org/mailman/listinfo/swift-dev > -- -Dave _______________________________________________ swift-dev mailing list swift-dev@swift.org https://lists.swift.org/mailman/listinfo/swift-dev
