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by nikki93 702 days ago
I use this static reflection hack in C++ -- https://godbolt.org/z/enh8za4ja

You do have to tag struct fields with a macro, but you can attach contexpr-visitable attributes. There's also a static limit to how many reflectable fields you can have, all reflectable fields need to be at the front of the struct, and the struct needs to be an aggregate.
2 comments
gpderetta 702 days ago
that forEachProp function... it brings back nightmares of when, before variadics, we used to macro generate up-to N-arity functions (with all the const/non-const permutations(.

Now I use the same trick in our code base to generically hash aggregates, but I limit it to 4 fields for sanity.

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asguy 702 days ago
Holy crap; that's pretty epic. Did you come up with that yourself?
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