myk9001

13 ms·

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Compiling a small Scala subset into x86-64 asm(mykolav.github.io)
1 points by myk9001 5y ago|1 comments
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by myk9001 5y ago
Sorry for a shameless plug! I read up a lot on this subject while working on [my own toy compiler]( https://news.ycombinator.com/item?id=28262149 ). Other well-known languages that have hand-written parsers are Rust and D. An
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by myk9001 5y ago
As @rofrol already said, definitely Crafting Interpreters. Just would like to add a link: https://craftinginterpreters.com/contents.html It explains parsing and other topics in a really clear and accessible way.
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Show HN: A toy compiler of a Scala subset(mykolav.github.io)
13 points by myk9001 5y ago|0 comments
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by myk9001 5y ago
Not sure if it counts, but I made two Roslyn analyzers for C# code. A Roslyn analyzer is basically a C# compiler plugin which can emit additional diagnostics if it encounters a certain pattern in the code being compiled. One of them lets a
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by myk9001 5y ago
Where I am, it's much much cheaper to get a laptop with the least possible amount of RAM preinstalled but -- importantly! -- with two RAM slots. Then just buy two stick of fast RAM and install them yourself. It often doesn't void
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by myk9001 5y ago
>> It’s really nice to be able to run Windows 3.1 code on a Windows Server 2019 You can also run the same version of a newest app on Windows 7 and Windows 10. At least, you could back when 7 was still supported, and you probably still
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by myk9001 5y ago
Agree. And want to add one point which people seem to ignore in discussion like this. >> needing a newer version of a package because the older one flat out doesn't work for me The reverse situation is also a problem. For me pers
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by myk9001 6y ago
You might find [CS 6120: Advanced Compilers: The Self-Guided Online Course][1] interesting. I'm slowly working through it, but basically its focus is intermediate representations, optimizations, etc. A link to the course was on the fir
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by myk9001 6y ago
Take a look at "Parsing expressions by precedence climbing"[1] by Eli Bendersky. See the "Other resources" section for other approaches to this problem. 1: https://eli.thegreenplace.net/2012/08/
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by myk9001 6y ago
Here's a published epidemiological model that supports Kulldorff, Gupta, and Bhattacharya position. Though the author is not one of them. https://journals.plos.org/plosone/article/peerReview?id=10.1... One of
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by myk9001 6y ago
Sure, experts do know a lot more about the virus than an average person. But, AFAIK, experts don't really have answers to these questions: - How long does the immunity last? - How much do asymptomatic people transmit? - How much do pre
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by myk9001 6y ago
I noticed this too. People in favor of lockdowns keep saying they're following science. But once someone dares to ask questions, so many act as if their religious feelings were insulted. To be fair, from what I've seen on HN, the
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by myk9001 6y ago
Thank you for the links. I find them useful. But one difference with the Spanish documents is they don't estimate their IFRs. And if I'm not missing anything, doing it yourself is not trivial if possible at all. It's not enou
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by myk9001 6y ago
Thanks for catching that. I don't really understand why they are using numbers from one table and not the other. I guess, it may be related to the dates they conducted the seroprevalence study, but it's only a wild guess. I'l
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by myk9001 6y ago
I wasn't asking rhetorically and am quite open to be proven wrong. What kind of differences do you have in mind for Japan given their population of ~126 millions, density and median age? "One can not and should not simply cherrypi
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by myk9001 6y ago
- Japan effectively had no lockdown and basically no testing[1]. - Japan is populated extremely densely[2]. - Japan is number 2 by the population's median age (for comparison, Italy is 5th)[3]. - Japan had 808(!) COVID-19 fatalities[4]
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by myk9001 6y ago
"But it's not in agreement with everybody else's charts, and it's early days when it comes to the epidemiology." I haven't seen any other IFR estimate that included a breakdown by age group from a government or
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by myk9001 6y ago
"That's not feasible. Those people have families, too." Why not? I don't think the parent meant staff should stay on-site forever. There can be shifts. Staff on shift get tested or even stay isolated for two weeks, then
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by myk9001 6y ago
"I don't know, an overall IFR of 0.8% is not great news" I agree, 4% IFR of people over 70 is a scary number. In my opinion, governments around the world should really focus on protecting these people. The good news is for pe
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by myk9001 6y ago
Do you like good news? Then I have good news! You're looking at the numbers for the case fatality rates (CFR). The CFR is not the same as the infection fatality rates (IFR) which represent "the fatality rate in all those with infe
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by myk9001 6y ago
"I'm not sure you are comparing apples-to-apples here." You are right. I don't think anyone knows exactly what makes certain places suffer more than others from the virus. I wasn't trying to compare, though. My poin
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by myk9001 6y ago
"I was simply pointing out that what people will consider more significant in five years time" Yes, I think I understand what you're saying. My point is the harm to the economy directly translates to lives lost too. Bad econo
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by myk9001 6y ago
"The only way the government could've saved restaurants, nail salons, et al. from suffering similar fate would be by suppressing all information about the virus and going to full denial mode. Otherwise, the customer base would&#x2
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by myk9001 6y ago
Your comment says "The infection fatality rate for COVID-19 is about 0.2%" but you reference "Case fatality rate of COVID-19 by age" as the source. The infection fatality rate and the case fatality rate are two very, ver
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by myk9001 6y ago
There are estimates that herd-immunity is achievable at 43% "The disease-induced herd immunity level is 43% ... when immunity is induced by disease spreading, the proportion infected in groups with high contact rates is greater than in
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by myk9001 6y ago
This is not the case for Sweden. For details, take a look at https://news.ycombinator.com/item?id=23266698 I don't think this is the case for Germany, Switzerland, or Denmark either. What countries do you have in mind
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by myk9001 6y ago
People are worried about economies not for some abstract reasons. Bad economies literally kill and have a potential to kill much more people than Covid-19. From what I gather, the scale of current economic damage is seriously compared to th
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by myk9001 6y ago
Lockdowns are causing the majority of economic damage. Whether lockdowns are justified anyway is a question for another discussion. But economies are hit by lockdowns not the pandemic itself. Let's look at info we can find about Sweden
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by myk9001 6y ago
Don't know why you're being downvoted. According to Spanish government's estimates[1] based on their own seroprevalence study: For the age group under 50, the estimated IFR is about 0.003% For the age group 50 - 69 yo, it&#x2

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