gavinray

64 ms·

931.
by gavinray 4y ago
Java after JDK 17 is a completely different language, almost like the difference between Javascript pre-ES6. It got: - Pattern matching - Sealed types - Records (immutable, succinct data-classes) - Multiline strings Among other things. It&#
932.
by gavinray 4y ago
Going to copy my Reddit comment over to HN because I think it's valuable: --- One of the coolest things that's been worked on (by this same author, no less!) isn't even in the article! Per has written a pretty-printer for Mem
933.
by gavinray 4y ago
It does allow for unsafe pointer math, I have some examples here where I've ported io_uring to use native Java Foreign Memory API with no external headers/bindings: https://github.com/GavinRay97/panama-liburin
934.
by gavinray 4y ago
Are there any exclusive features that Bun has, that are particularly well-suited for writing databases or other low-latency, high-throughput I/O applications? Seems like being written in Zig might give it a good foot in the door here.
935.
by gavinray 4y ago
ScyllaDB is, ironically, maybe one of the worst examples the author could have come up with for "abstraction" in the article. If folks aren't familiar with their work/internal tech, go check out some of their repos like
936.
by gavinray 4y ago
What terrible news to wake up to. I hate when they say "passed away" -- here was a man in his prime, just the other week sharing knowledge of compilers at a conference, taken from the world. Chris helped me frequently on the Graal
937.
by gavinray 4y ago
The only thing that changes is that instead of your time being distributed like this when you build something: > [PLANNING] [SPECS] [IMPLEMENTATION] [TESTS] The "implementation" and "tests" sections become much
938.
A Day Without a Copilot: Reflections on Copilot-Driven Development(gavinray97.github.io)
1 points by gavinray 4y ago|0 comments
939.
by gavinray 4y ago
I dunno, every language/tech thing has a Discord nowadays (mostly). If I need help with something I usually go there first. Even for niche things like D language, the Discord is the place to go. I learned Scala 3 and D mostly through t
940.
by gavinray 4y ago
This is what I also thought -- that an image taken of someone's retina could predict whether they would later engage in sex with the person they were looking at. Someone smarter than me, build the thing, put it on a phone app, and make
941.
by gavinray 4y ago
I assume the author tried asking in the Scala discord? https://discord.com/invite/scala Most of the core community hangs out there, and some of the folks that contribute to the compiler too. If there's someone tha
942.
by gavinray 4y ago
Fair point and great anecdote. Though when I think "interference of my 'let-live'" my mind jumps to things a decent bit worse than family who make some well-meaning remarks that sting. I don't want to turn this into
943.
by gavinray 4y ago
> Many conservatives claim to just want to be left alone and then turn around and try to legislate who can marry who, how people live their lives, who is "worthy" of being part of our country, what books are available in
944.
by gavinray 4y ago
"Live and let live" is based on the hope that everyone adopts that philosophy. Obviously with humans this can never be the case, until we modify our own brains/neurochemistry. IMO, adhere to it so long as the "Non-aggres
945.
by gavinray 4y ago
I don't know that it's necessarily so much unpleasant emotions Let me paint a picture: My maternal grandparents are country folk, from Kentucky. My grandfather was an electrical engineer and a sort of whizz kid type. Architected&#
946.
by gavinray 4y ago
I'm just commenting to agree with the "D got language design right, Marketing worse than Rust". I cry every time =( Don't have anything against Rust though, except the syntax can be a bit obtuse.
947.
by gavinray 4y ago
This is great and I'd also never seen this either -- thank you!
948.
by gavinray 4y ago
I'd never heard of this cclyzer tool, thanks for sharing. This looks really interesting. Know of any other tools for C/C++/JVM static analysis that folks might not be aware of? At the moment, I use GCC's -fanalyzer, the
949.
by gavinray 4y ago
I'd say QBE probably
950.
by gavinray 4y ago
This is what it spit out, if anyone is curious (best of them, from what I could tell, I dunno much about concurrent programming but this looked the most reasonable to me): I started by typing this: template <typename T> struct u
951.
by gavinray 4y ago
Fair enough! I'd be interested if Github Copilot can take this as a prompt and spit out C/C++ for it...
952.
by gavinray 4y ago
Whoa, this is really cool, thanks for posting
953.
by gavinray 4y ago
I did email the BPF kernel mailing list, they directed me to two user-land (user-space?) implementations of BPF but didn't say much about what "user-space BPF" meant. Didn't want to clutter up the mailing list with noise
954.
by gavinray 4y ago
Ah, that sounds like a pretty serious limitation. Do you think they might relax this restriction in the future? In the talk, he mentions adding higher-level constructs to C like lists and RB-trees that are also concurrently-safe(!!) which s
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by gavinray 4y ago
Do you have a pseudo-code example of this? It sounds neat: > A 16-byte CAS can now operate on 4+ values instead of just ~2, and you can conceivably use an 8-byte object for both a pointer and a counter (an ABA counter, perhaps) so yo
956.
by gavinray 4y ago
I have a tangential question, more about BPF in general: I watched a presentation recently by one of the core BPF contributors, in which they paint it as a safer, extended version of C: https://www.youtube.com/watch?v=K08YCg
957.
by gavinray 4y ago
An OS page size is such a prevalent notion in software it's shocking I was oblivious to this a year ago before I got interested in database internals Something that I found interesting, there's a recent presentation by Neumann abo
958.
by gavinray 4y ago
Ahh, what do you call the method table thing for non-virtual classes?
959.
by gavinray 4y ago
You're not wrong but for some reason this style is easier for me to work with I know logically/semantically they're equivalent. The v-table function generated if the method is moved inside the class/struct winds up being
960.
by gavinray 4y ago
Ah I wasn't sure if LSAN was always enabled with ASAN, good to know -- ty!

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