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Diffstat (limited to 'users/tazjin/presentations/tvix-eval-2023')
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diff --git a/users/tazjin/presentations/tvix-eval-2023/README.md b/users/tazjin/presentations/tvix-eval-2023/README.md new file mode 100644 index 0000000000..b14ba8ff50 --- /dev/null +++ b/users/tazjin/presentations/tvix-eval-2023/README.md @@ -0,0 +1,12 @@ +These are the slides for a talk at the Moscow Rust User Group / +ProgMSK on 2023-09-07. + +After building, the presentation can be launched with `pdfpc` +(available in `nixpkgs`), like this: + +``` +pdfpc --windowed=both result/presentation.pdf -R presentation.pdfpc -d 40 +``` + +I keep the JSON file formatted using `jq . presentation.pdfpc | sponge +presentation.pdfpc` for easier diffs. diff --git a/users/tazjin/presentations/tvix-eval-2023/cppnix-example-lexer.cpp b/users/tazjin/presentations/tvix-eval-2023/cppnix-example-lexer.cpp new file mode 100644 index 0000000000..7c52bce8b6 --- /dev/null +++ b/users/tazjin/presentations/tvix-eval-2023/cppnix-example-lexer.cpp @@ -0,0 +1,13 @@ +attrpath + : attrpath '.' attr { + $$ = $1; $1->push_back(AttrName(data->symbols.create($3))); + } + | attrpath '.' string_attr + { $$ = $1; + ExprString * str = dynamic_cast<ExprString *>($3); + if (str) { + $$->push_back(AttrName(data->symbols.create(str->s))); + delete str; + } else + $$->push_back(AttrName($3)); + } diff --git a/users/tazjin/presentations/tvix-eval-2023/cppnix-example-smuggling.cpp b/users/tazjin/presentations/tvix-eval-2023/cppnix-example-smuggling.cpp new file mode 100644 index 0000000000..37b9219b2e --- /dev/null +++ b/users/tazjin/presentations/tvix-eval-2023/cppnix-example-smuggling.cpp @@ -0,0 +1,12 @@ +struct Env { + // ... some struct fields ... + Value* values[0]; +}; + +// .... + +if (env->type == Env::HasWithExpr) { + // ... + evalAttrs(*env->up, (Expr *) env->values[0], *v, noPos, "<borked>"); + // ^^^^^^^^^^^^^^^^^^^^^^^ +} diff --git a/users/tazjin/presentations/tvix-eval-2023/default.nix b/users/tazjin/presentations/tvix-eval-2023/default.nix new file mode 100644 index 0000000000..a4d855197c --- /dev/null +++ b/users/tazjin/presentations/tvix-eval-2023/default.nix @@ -0,0 +1,63 @@ +{ depot, pkgs, ... }: + +let + inherit (pkgs) fontconfig texlive stdenv imagemagick runCommand qrencode; + + tex = texlive.combine { + inherit (texlive) + babel + babel-russian + beamer + beamertheme-metropolis + etoolbox + euenc + extsizes + fontspec + listings + xetex + minted + ms + pgfopts + scheme-basic + translator; + }; + + linksQrCode = runCommand "qrcode.png" { } '' + ${qrencode}/bin/qrencode -o code.png -s 8 \ + --background=fafafa \ + --foreground=000000 \ + 'https://tazj.in/blog/tvix-eval-talk-2023' + + # latex has trouble with the PDF produced by qrencode + ${imagemagick}/bin/convert code.png $out + ''; +in +stdenv.mkDerivation { + name = "progmsk-tvix-eval"; + src = ./.; + + nativeBuildInputs = [ tex imagemagick fontconfig ]; + + FONTCONFIG_FILE = pkgs.makeFontsConf { + fontDirectories = with pkgs; [ jetbrains-mono fira fira-code fira-mono ]; + }; + + buildPhase = '' + # LaTeX needs a cache folder in /home/ ... + mkdir home + export HOME=$PWD/home + + cp ${depot.tvix.logo}/logo.png tvix-logo.png + cp ${linksQrCode} qrcode.png + + # As usual, TeX needs to be run twice ... + ${tex}/bin/xelatex presentation.tex + ${tex}/bin/xelatex presentation.tex + ''; + + installPhase = '' + mkdir -p $out + cp presentation.pdf $out/ + cp $src/presentation.pdfpc $out/ + ''; +} diff --git a/users/tazjin/presentations/tvix-eval-2023/presentation.pdfpc b/users/tazjin/presentations/tvix-eval-2023/presentation.pdfpc new file mode 100644 index 0000000000..ab5cba68bf --- /dev/null +++ b/users/tazjin/presentations/tvix-eval-2023/presentation.pdfpc @@ -0,0 +1,98 @@ +{ + "pdfpcFormat": 2, + "duration": 40, + "disableMarkdown": false, + "noteFontSize": 20, + "pages": [ + { + "idx": 1, + "label": "2", + "overlay": 0, + "note": "Привет, меня зовут .... Я уже много лет, с 2016г. примерно, пишу на Расте, и хотя на работе у меня часто бывают другие языки, Раст - любимый мой язык.\n\nПару лет назад, во время Кодида, я создал онлайн-коммюнити ТВЛ, и сегодня хочу вам об одном из наших проектов рассказать." + }, + { + "idx": 2, + "label": "3", + "overlay": 0, + "note": "монорепо: объяснить. Весь код орга в одном месте. Единный тулинг. Много из нас раньше работали в компаниях, где так делают (нп Гугл).\n\nМы хотели создать такой же тулинг, но открыто. Но у нас меньше ресурсов чем у Гугла, намного меньше. Пришлось выбрать эфф. способ.\nФокусируем на Никс, потому что (...). Есть доклад.\n\nМы начали его не только для пакетов использовать (конфиг и тд.), хотелось решение, которое работает везде." + }, + { + "idx": 3, + "label": "4", + "overlay": 0, + "note": "Будем фокусировать только на язык сейчас. Остальные части интересные, но не сегодня.\nЯзык ленивый, значит только вычисляем код, когда его результат нужен где-то.\nЗначит, нам нужен рантайм-представление отложенных вычислений.\nОрганично развивался: добавили фичи, когда нуждались. Много функтции работают только случайно, комбинации фич - часто странно. (шутка про С++?)\nНо есть хороший фактор: весь публичный код в принципе в одном репо. Объяснять nixpkgs." + }, + { + "idx": 4, + "label": "5", + "overlay": 0, + "note": "Текушая имплементация на С++. Вот пример. Кто-то здесь понимает, что мы видем? Это часть парсера в як, но тут создают рантайм-значения во время парсинга. Очень сложно понимать, читать, дебажить и так далее.\nЧитали парсер, и даже нашли там неизвестные фичи языка." + }, + { + "idx": 5, + "label": "6", + "overlay": 0, + "note": "Второй пример. Есть стракт Env, которая используется во многих местах в коде. Там массив типа Value.\nВот использование этого массива. Что мы видем? Кто понимает?\nДа, там на самом деле происходит каст на другой тип. Значит, в структуре добавляют данные, которые не подойдет. Очень unsafe!\n\nДа, что же делать? Пытались почистить код, но случилось burnout очень быстро. Меняешь одну маленькую штуку -> segfaults.\nПочему код вот такой? -> объяснять.\nПришлась очевидная идея." + }, + { + "idx": 6, + "label": "6", + "overlay": 1, + "note": "Переписать проекты полностью, обычно очень сложно. Но мы можем менять арх., и обходить переписивание некоторых частей.\nРаст - нам очевидный выбор для имплементация языка. Много нас знают Раст, и в целом, почему именно Раст, вы уже сами понимаете.\n\nМы от NLNet, организация, ..., получили денги за этого и начали с языком. Этот проект называем tvix-eval.\n\nЕсть еще одна важная причина для выбора Раста." + }, + { + "idx": 7, + "label": "6", + "overlay": 2, + "note": "Пару лет назад, шведский парень юзернеймом, который нельзя происносить, написал на Расте очень быстрый и в целом хороший парсер для Никса.\nЭтот парсер уже используется в разных с Никсом связанных проектах. Он скорее всего в пути стать дефольтним парсером Никса.\nКонечно, неплохо если мы его тоже используем.\nК сожалению, автор рникса умерл в 2021 году. Мали исвестно о том, что случилось. Мы ему очень благодарные, и я просто хотел его здесь упомянуть." + }, + { + "idx": 9, + "label": "8", + "overlay": 0, + "note": "показать opcode.rs, compiler/mod (compile_binop)\n\nчтобы он не разжирел (про variant_size_differences)\n" + }, + { + "idx": 10, + "label": "9", + "overlay": 0, + "note": "показать value/mod.rs, потом value/list.rs\n\nкороткая объяснение ситуации с Gc<...> vs. Rc<...>" + }, + { + "idx": 11, + "label": "10", + "overlay": 0, + "note": "показать vm/mod.rs\n\nпоследовательно выпольняет инструктции в execute_bytecode\n\nсначала на алфавитным порядке, потом с помощью профайлера меняли это" + }, + { + "idx": 12, + "label": "10", + "overlay": 1, + "note": "показать диаграмму\n\nгенераторый можно приостановить\n\nTCO - хвостовый вызов\n\nasync - очень наязчивный (intrusive), надо было его везде добавить, неудоб" + }, + { + "idx": 13, + "label": "10", + "overlay": 2, + "note": "Зависимо от времени, можно либо только про tvixbolt, либо тоже про тесты из cppnix" + }, + { + "idx": 14, + "label": "11", + "overlay": 0, + "note": "на самом деле удивительно легко, но сталкивались с проблемой, что он иногда перестал работать\n\nпоказать пример с SystemTime::now\n\nесть кое-какие библиотеки, которые мб помогут, но мы их пока не проверили\n\nв целом, wasm на расте довольно удобно" + }, + { + "idx": 15, + "label": "12", + "overlay": 0, + "note": "открытый проект, принимаем коммиты от всех\n\nесть еще баги, TODOs, и тд в tvix-eval\n\nно есть тоже остальные части твикса, что-то найдется" + }, + { + "idx": 16, + "label": "13", + "overlay": 0, + "note": "спасибо всем, вот ссылки, на QR-коде есть все вот этот вот, и там тоже потом добавлю сам доклад\n\nеще завтра начинается NixCon, если вам вдруг интересно, можно онлайн посмотреть. Там будет доклад про tvix тоже, но об остальных частях." + } + ] +} diff --git a/users/tazjin/presentations/tvix-eval-2023/presentation.tex b/users/tazjin/presentations/tvix-eval-2023/presentation.tex new file mode 100644 index 0000000000..294dad7942 --- /dev/null +++ b/users/tazjin/presentations/tvix-eval-2023/presentation.tex @@ -0,0 +1,148 @@ +\documentclass[12pt]{beamer} + +\usepackage[utf8]{inputenc} +\usepackage[main=russian,english]{babel} +\usepackage{fontspec} +\usepackage{listings} + +\setmainfont{JetBrains Mono} +\setsansfont{JetBrains Mono} + +\usetheme{metropolis} +\newenvironment{code}{\ttfamily}{\par} +\title{tvix-eval \\ компилятор и рантайм для Nix, на Rust} + +\titlegraphic{\vspace{4.8cm}\flushright\includegraphics[width=6cm,keepaspectratio=true]{tvix-logo.png}} + +\date{2023-09-07} +\author{Винсент Амбо} +\institute{TVL} + +\begin{document} + %% Slide -1 (before counter): + \begin{frame} + \begin{center} + \titlepage + \end{center} + \end{frame} + + %% Slide 0 (title): + \begin{frame} + \begin{center} + \titlepage + \end{center} + \end{frame} + + %% Slide 1: + \begin{frame}{\textbf{Т}he \textbf{V}irus \textbf{L}ounge} + \begin{itemize} + \item онлайн-комьюнити, занимающееся тулингом для монорепо + \item основной фокус на Nix + \item Nix не только для сборки пакетов + \item Хотелось решение, чтобы использовать Nix везде + \end{itemize} + \end{frame} + + %% Slide 2: + \begin{frame}{Особенности языка Nix} + \begin{itemize} + \item Ленивый язык. Вычислять все сразу нельзя. + \item Язык развивался органично. + \item Большинство кода на Nix --- в одном месте: \begin{code}nixpkgs\end{code} + \end{itemize} + \end{frame} + + %% Slide 3: + \begin{frame}{Текущая имплементация: C++ Nix} + \lstinputlisting[ + language=c++, + basicstyle={\scriptsize} + ]{cppnix-example-lexer.cpp} + \end{frame} + + %% Slide 4: + \begin{frame}{Текущая имплементация: C++ Nix} + \lstinputlisting[ + language=c++, + basicstyle={\scriptsize} + ]{cppnix-example-smuggling.cpp} + \end{frame} + + %% Slide 5: + \section{``Let's rewrite it in Rust!''} + + %% Slide 6: + \section*{Спасибо, jD91mZM2!\\\normalsize{автор ``rnix-parser''; *2002 - \textdagger 2021}} + + %% Slide 7: + \begin{frame}{tvix-eval, - (язык) Nix, на Rust} + \begin{itemize} + \item написано с существующим парсером + \item bytecode-интерпретатор, вместо tree-walk + \item должна работать не только для остальных частей tvix + \end{itemize} + \end{frame} + + %% Slide 8: + \begin{frame}{tvix-eval, основные части} + \begin{enumerate} + \item собственный байткод и компилятор + \end{enumerate} + \end{frame} + + %% показать opcode.rs, быстро показать compiler/mod.rs + + %% Slide 9: + \begin{frame}{tvix-eval, основные части} + \begin{enumerate} + \item собственный байткод и компилятор + \item представление значений языка в рантайме + \end{enumerate} + \end{frame} + + %% показать Value + + %% Slide 10: + \begin{frame}{tvix-eval, основные части} + \begin{enumerate} + \item собственный байткод и компилятор + \item представление значении языка в рантайме + \item ... и сам рантайм! + \end{enumerate} + \end{frame} + + %% показать VM + + \section{``Подожди, написать рантайм же не так просто?''} + + %% объяснить проблему со стеком и решение, показать диаграмму + + \section{``А откуда знаешь, что это все правильно работает?''} + + %% показать как тесты работают + %% объяснить дебагинг, Твиксболт и тд + + %% Slide 10: + \begin{frame}{tvix-eval, в браузере} + \begin{itemize} + \item удивительно легко делать + \item но есть сложности в \begin{code}std::\end{code} + % показать пример + \end{itemize} + \end{frame} + + %% Slide 11: + \begin{frame}{А что дальше?} + В tvix-eval есть еще кое-какие интересные проблемы. Может ты их + решишь? + \end{frame} + + \begin{frame}{Спасибо!} + \begin{center} + \includegraphics[width=6cm,keepaspectratio=true]{qrcode.png} + + https://tazj.in/blog/tvix-eval-talk-2023 \\ + t.me/tazjin | t.me/tazlog + \end{center} + \end{frame} +\end{document} diff --git a/users/tazjin/presentations/tvix-eval-2023/wasm-fs-demo/.gitignore b/users/tazjin/presentations/tvix-eval-2023/wasm-fs-demo/.gitignore new file mode 100644 index 0000000000..73b9c106db --- /dev/null +++ b/users/tazjin/presentations/tvix-eval-2023/wasm-fs-demo/.gitignore @@ -0,0 +1,2 @@ +target/ +dist/ diff --git a/users/tazjin/presentations/tvix-eval-2023/wasm-fs-demo/Cargo.lock b/users/tazjin/presentations/tvix-eval-2023/wasm-fs-demo/Cargo.lock new file mode 100644 index 0000000000..ef879254cb --- /dev/null +++ b/users/tazjin/presentations/tvix-eval-2023/wasm-fs-demo/Cargo.lock @@ -0,0 +1,899 @@ +# This file is automatically @generated by Cargo. +# It is not intended for manual editing. +version = 3 + 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charset="utf-8" /> + <title>wasm-fs-demo</title> + </head> +</html> diff --git a/users/tazjin/presentations/tvix-eval-2023/wasm-fs-demo/src/main.rs b/users/tazjin/presentations/tvix-eval-2023/wasm-fs-demo/src/main.rs new file mode 100644 index 0000000000..4ad177ad7a --- /dev/null +++ b/users/tazjin/presentations/tvix-eval-2023/wasm-fs-demo/src/main.rs @@ -0,0 +1,41 @@ +use std::time::{SystemTime, UNIX_EPOCH}; +use yew::prelude::*; + +fn time_example() -> Html { + let epoch = match SystemTime::now().duration_since(UNIX_EPOCH) { + Ok(duration) => duration.as_secs(), + Err(err) => { + return html! { + format!("failed to calculate duration: {}", err) + } + } + }; + + html! { + <p> + {"Seconds since epoch: "}{epoch} + </p> + } +} + +struct App; +impl Component for App { + type Message = (); + type Properties = (); + + fn create(_: &Context<Self>) -> Self { + Self + } + + fn update(&mut self, _: &Context<Self>, _: Self::Message) -> bool { + false + } + + fn view(&self, _: &Context<Self>) -> Html { + time_example() + } +} + +fn main() { + yew::Renderer::<App>::new().render(); +} |