wip: testing
This commit is contained in:
Jordan Pittman
parent
7f19f7ef75
commit
bbcf9ecfe0
3 changed files with 519 additions and 0 deletions
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@ -18,6 +18,9 @@ serde_json = "1.0.127"
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log = "0.4.22"
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wasm-bindgen = "0.2.93"
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bstr = "1.10.0"
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memmem = "0.1.1"
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memchr = "2.7.4"
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tinyvec = { version = "1.8.0", features = ["alloc"] }
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[dev-dependencies]
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rstest = "0.22.0"
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@ -1 +1,137 @@
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mod compat;
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mod css;
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mod util;
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use css::optimize::optimize_ast;
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use css::parser::parse;
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use wasm_bindgen::prelude::*;
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use std::cell::Cell;
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use css::ast::CssNode;
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use css::visit::WalkAction;
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#[wasm_bindgen]
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pub fn wip() {
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// 1. Parse the CSS
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let mut ast = parse(b"h1 { color: red; font-size: 2em; } h2 { color: blue; font-size: 1.5em; }").unwrap();
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// 2. Walk the AST and mutate all color properties to green
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ast.walk_mut(&mut |node| {
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let CssNode::Declaration { property, value, .. } = node else {
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return WalkAction::Continue;
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};
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if property != b"color" {
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return WalkAction::Continue;
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}
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*value = "green".into();
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return WalkAction::Continue;
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});
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// 3. Walk the AST and count the number of font-size properties
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let count = Cell::new(0);
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ast.walk(&|node| {
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let CssNode::Declaration { property, .. } = node else {
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return WalkAction::Continue;
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};
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if property != b"font-size" {
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return WalkAction::Continue;
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}
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count.set(count.get() + 1);
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WalkAction::Continue
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});
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// 4. Optimize the AST
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optimize_ast(&mut ast);
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// 5. Serialize the AST back to CSS
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let css = ast.to_css();
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// 6. Print the CSS
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println!("{}", String::from_utf8_lossy(&css));
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println!("{}", count.get());
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}
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// use css::ast::{decl, rule, Ast, AstNode, WalkAction};
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// pub struct Compiler {
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// ast: Stylesheet,
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// config_paths: Vec<String>,
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// plugin_paths: Vec<String>,
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// }
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// impl Compiler {
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// fn new(css: &[u8]) -> Compiler {
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// let mut ast = parse_css(css);
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// let mut plugin_paths = vec![];
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// let mut config_paths = vec![];
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// ast.walk(&mut |node, _| {
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// let AstNode::Rule { selector, .. } = node else {
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// return WalkAction::Continue;
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// };
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// if selector.starts_with(b"@plugin") {
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// let path = selector.split_at(7).1;
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// let path = &path[2..path.len()-1];
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// let path = path.to_vec();
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// plugin_paths.push(unsafe {
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// String::from_utf8_unchecked(path)
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// });
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// }
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// if selector.starts_with(b"@config") {
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// let path = selector.split_at(7).1;
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// let path = &path[2..path.len()-1];
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// let path = path.to_vec();
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// config_paths.push(unsafe {
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// String::from_utf8_unchecked(path)
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// });
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// }
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// WalkAction::Continue
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// });
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// Compiler {
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// ast,
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// }
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// }
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// // fn plugin_paths(&self) -> Vec<String> {
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// // vec![]
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// // }
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// // fn config_paths(&self) -> Vec<String> {
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// // vec![]
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// // }
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// }
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// fn parse_css(css: &[u8]) -> Ast {
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// // TODO: Parse the CSS into an AST
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// _ = css;
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// Ast::from(vec![
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// rule(b"body", vec![
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// decl(b"color", Some(b"red"), false),
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// ]),
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// ])
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// }
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// fn foo() {
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// let css = b"body { color: red; }";
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// let compiler = Compiler::new(css);
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// }
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// enum UtilityDescriptor {
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// Simple {
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// name: String,
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// ast: Ast,
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// },
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// }
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380
crates/core/src/main.rs
Normal file
380
crates/core/src/main.rs
Normal file
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@ -0,0 +1,380 @@
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use std::hint::black_box;
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const PREFLIGHT: &'static str = r#"/*
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1. Prevent padding and border from affecting element width. (https://github.com/mozdevs/cssremedy/issues/4)
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2. Remove default margins and padding
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3. Reset all borders.
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*/
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*,
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::after,
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::before,
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::backdrop,
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::file-selector-button {
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box-sizing: border-box; /* 1 */
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margin: 0; /* 2 */
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padding: 0; /* 2 */
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border: 0 solid; /* 3 */
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}
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/*
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1. Use a consistent sensible line-height in all browsers.
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2. Prevent adjustments of font size after orientation changes in iOS.
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3. Use a more readable tab size.
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4. Use the user's configured `sans` font-family by default.
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5. Use the user's configured `sans` font-feature-settings by default.
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6. Use the user's configured `sans` font-variation-settings by default.
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7. Disable tap highlights on iOS.
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*/
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html,
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:host {
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line-height: 1.5; /* 1 */
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-webkit-text-size-adjust: 100%; /* 2 */
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tab-size: 4; /* 3 */
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font-family: var(
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--default-font-family,
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ui-sans-serif,
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system-ui,
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sans-serif,
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'Apple Color Emoji',
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'Segoe UI Emoji',
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'Segoe UI Symbol',
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'Noto Color Emoji'
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); /* 4 */
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font-feature-settings: var(--default-font-feature-settings, normal); /* 5 */
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font-variation-settings: var(--default-font-variation-settings, normal); /* 6 */
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-webkit-tap-highlight-color: transparent; /* 7 */
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}
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/*
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Inherit line-height from `html` so users can set them as a class directly on the `html` element.
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*/
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body {
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line-height: inherit;
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}
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/*
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1. Add the correct height in Firefox.
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2. Correct the inheritance of border color in Firefox. (https://bugzilla.mozilla.org/show_bug.cgi?id=190655)
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3. Reset the default border style to a 1px solid border.
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*/
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hr {
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height: 0; /* 1 */
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color: inherit; /* 2 */
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border-top-width: 1px; /* 3 */
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}
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/*
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Add the correct text decoration in Chrome, Edge, and Safari.
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*/
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abbr:where([title]) {
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-webkit-text-decoration: underline dotted;
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text-decoration: underline dotted;
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}
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/*
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Remove the default font size and weight for headings.
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*/
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h1,
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h2,
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h3,
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h4,
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h5,
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h6 {
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font-size: inherit;
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font-weight: inherit;
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}
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/*
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Reset links to optimize for opt-in styling instead of opt-out.
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*/
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a {
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color: inherit;
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-webkit-text-decoration: inherit;
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text-decoration: inherit;
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}
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/*
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Add the correct font weight in Edge and Safari.
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*/
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b,
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strong {
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font-weight: bolder;
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}
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/*
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1. Use the user's configured `mono` font-family by default.
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2. Use the user's configured `mono` font-feature-settings by default.
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3. Use the user's configured `mono` font-variation-settings by default.
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4. Correct the odd `em` font sizing in all browsers.
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*/
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code,
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kbd,
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samp,
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pre {
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font-family: var(
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--default-mono-font-family,
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ui-monospace,
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SFMono-Regular,
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Menlo,
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Monaco,
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Consolas,
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'Liberation Mono',
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'Courier New',
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monospace
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); /* 4 */
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font-feature-settings: var(--default-mono-font-feature-settings, normal); /* 5 */
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font-variation-settings: var(--default-mono-font-variation-settings, normal); /* 6 */
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font-size: 1em; /* 4 */
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}
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/*
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Add the correct font size in all browsers.
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*/
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small {
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font-size: 80%;
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}
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/*
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Prevent `sub` and `sup` elements from affecting the line height in all browsers.
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*/
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sub,
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sup {
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font-size: 75%;
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line-height: 0;
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position: relative;
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vertical-align: baseline;
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}
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sub {
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bottom: -0.25em;
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}
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sup {
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top: -0.5em;
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}
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/*
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1. Remove text indentation from table contents in Chrome and Safari. (https://bugs.chromium.org/p/chromium/issues/detail?id=999088, https://bugs.webkit.org/show_bug.cgi?id=201297)
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2. Correct table border color inheritance in all Chrome and Safari. (https://bugs.chromium.org/p/chromium/issues/detail?id=935729, https://bugs.webkit.org/show_bug.cgi?id=195016)
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3. Remove gaps between table borders by default.
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*/
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table {
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text-indent: 0; /* 1 */
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border-color: inherit; /* 2 */
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border-collapse: collapse; /* 3 */
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}
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/*
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1. Inherit the font styles in all browsers.
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2. Remove the default background color.
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*/
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button,
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input,
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optgroup,
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select,
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textarea,
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::file-selector-button {
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font: inherit; /* 1 */
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font-feature-settings: inherit; /* 1 */
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font-variation-settings: inherit; /* 1 */
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letter-spacing: inherit; /* 1 */
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color: inherit; /* 1 */
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background: transparent; /* 2 */
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}
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/*
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Reset the default inset border style for form controls to solid.
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*/
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input:where(:not([type='button'], [type='reset'], [type='submit'])),
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select,
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textarea {
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border: 1px solid;
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}
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/*
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Correct the inability to style the border radius in iOS Safari.
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*/
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button,
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input:where([type='button'], [type='reset'], [type='submit']),
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::file-selector-button {
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appearance: button;
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}
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/*
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Use the modern Firefox focus style for all focusable elements.
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*/
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:-moz-focusring {
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outline: auto;
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}
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/*
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Remove the additional `:invalid` styles in Firefox. (https://github.com/mozilla/gecko-dev/blob/2f9eacd9d3d995c937b4251a5557d95d494c9be1/layout/style/res/forms.css#L728-L737)
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*/
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:-moz-ui-invalid {
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box-shadow: none;
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}
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/*
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Add the correct vertical alignment in Chrome and Firefox.
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*/
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progress {
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vertical-align: baseline;
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}
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/*
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Correct the cursor style of increment and decrement buttons in Safari.
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*/
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::-webkit-inner-spin-button,
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::-webkit-outer-spin-button {
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height: auto;
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}
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/*
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Remove the inner padding in Chrome and Safari on macOS.
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*/
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::-webkit-search-decoration {
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-webkit-appearance: none;
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}
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/*
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Add the correct display in Chrome and Safari.
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*/
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summary {
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display: list-item;
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}
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/*
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Make lists unstyled by default.
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*/
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ol,
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ul,
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menu {
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list-style: none;
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}
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/*
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Prevent resizing textareas horizontally by default.
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*/
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textarea {
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resize: vertical;
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}
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/*
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1. Reset the default placeholder opacity in Firefox. (https://github.com/tailwindlabs/tailwindcss/issues/3300)
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2. Set the default placeholder color to a semi-transparent version of the current text color.
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*/
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::placeholder {
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opacity: 1; /* 1 */
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color: color-mix(in srgb, currentColor 50%, transparent); /* 2 */
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}
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/*
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1. Make replaced elements `display: block` by default. (https://github.com/mozdevs/cssremedy/issues/14)
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2. Add `vertical-align: middle` to align replaced elements more sensibly by default. (https://github.com/jensimmons/cssremedy/issues/14#issuecomment-634934210)
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This can trigger a poorly considered lint error in some tools but is included by design.
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*/
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img,
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svg,
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video,
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canvas,
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audio,
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iframe,
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embed,
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object {
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display: block; /* 1 */
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vertical-align: middle; /* 2 */
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}
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/*
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Constrain images and videos to the parent width and preserve their intrinsic aspect ratio. (https://github.com/mozdevs/cssremedy/issues/14)
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*/
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img,
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video {
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max-width: 100%;
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height: auto;
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}
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/*
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Make elements with the HTML hidden attribute stay hidden by default.
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*/
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[hidden] {
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display: none !important;
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}
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"#;
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mod css;
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mod util;
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pub fn main() {
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let throughput = util::Throughput::compute(100_000, PREFLIGHT.len(), || {
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_ = black_box(css::parse(PREFLIGHT.as_bytes()));
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});
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eprintln!("css::parse: {:}", throughput);
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let input = &b"var(--a, 0 0 1px rgb(0, 0, 0)), 0 0 1px rgb(0, 0, 0), var(--a, 0 0 1px rgb(0, 0, 0)), 0 0 1px rgb(0, 0, 0), ".repeat(500)[..];
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let throughput = util::Throughput::compute(100_000, input.len(), || {
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_ = black_box(util::segment(input, b','));
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});
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eprintln!("util::segment: {:}", throughput);
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let input = &b"s\\o\\m\\e\\_\\identifier_token ".repeat(500)[..];
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let throughput = util::Throughput::compute(100_000_000, input.len(), || {
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_ = black_box(css::syntax::read_ident_token(input));
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});
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eprintln!("css::syntax::read_ident_token: {:}", throughput);
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let input = &b"@media (min-width: 1280px) ".repeat(500)[..];
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let throughput = util::Throughput::compute(2_000_000, input.len(), || {
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_ = black_box(css::parser::parse_rule_header(input));
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});
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eprintln!("css::parser::parse_rule_header (at rule): {:}", throughput);
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let input = &b".foo.bar:is(.baz:has(.qux:where(.foo + .bar))) + .thing::before".repeat(500)[..];
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let throughput = util::Throughput::compute(2_000_000, input.len(), || {
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_ = black_box(css::parser::parse_rule_header(input));
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});
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eprintln!("css::parser::parse_rule_header (style rule): {:}", throughput);
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let input = &b"[content-start]_calc(100%-1px)_[content-end]_minmax(1rem,1fr)".repeat(500)[..];
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let throughput = util::Throughput::compute(100_000, input.len(), || {
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_ = black_box(util::convert_underscores_to_whitespace(input));
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});
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eprintln!("util::convert_underscores_to_whitespace: {:}", throughput);
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}
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