Reflecting JSON into C++ Objects

(brevzin.github.io)
17 points ibobev | 4 comments | 26 Jun 25 12:59 UTC | HN request time: 0.885s | source
1. squirrellous ◴[26 Jun 25 14:00 UTC] No.44387514[source]▶
Exciting. Imagine shipping GCC at runtime and compiling a whole new program from a JSON configuration file, optimized to exactly that configuration.
replies(1): >>44388190 #
2. dwrodri ◴[26 Jun 25 15:10 UTC] No.44388190[source]▶
> Imagine shipping GCC at runtime

The security engineer in me had a facial twitch, but for the right usecases this would be indeed be interesting!

replies(1): >>44389712 #
3. vardump ◴[26 Jun 25 17:58 UTC] No.44389712{3}[source]▶
That’s like having extra configuration dependent ASLR on top!

If carefully implemented the compiler and linker could omit code that the configuration didn’t require. Wouldn’t less code mean better security and performance?