Press n or j to go to the next uncovered block, b, p or k for the previous block.
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 | 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 5045x 5045x 5045x 5045x 5045x 5045x 327x 251x 251x 251x 251x 279x 327x 5045x 5045x 2x 2x 2x 2x 2x 2554x 2554x 2554x 2554x 235x 2554x 2554x 2x 2x 2x 2x 112x 20x 16x 16x 20x 112x 112x 2x 2x 1609x 1609x 1609x 1609x 1609x 1609x 154x 154x 154x 5x 5x 5x 3x 3x 5x 2x 154x 1609x 1603x 1603x 1609x 2551x 2657x 2657x 2657x 182x 182x 182x 4x 4x 178x 178x 182x 1x 1x 177x 177x 177x 177x 177x 182x 9x 182x 6x 6x 182x 2657x 2540x 1592x 1592x 1592x 1592x 1592x 1592x 2x 2x 2565x 2565x 2565x 2460x 2460x 2460x 2441x 11x 11x 11x 11x 11x 11x 2460x 2460x 2565x 2565x 2565x 2565x 2565x 2565x 2x 2x 1420x 1420x 1420x 1434x 1434x 1434x 2389x 2389x 2389x 8x 8x 8x 2389x 2389x 44x 44x 12x 12x 2x 2x 12x 12x 12x 2389x 1434x 1434x 1420x 1420x 1420x 44x 1x 1x 43x 43x 43x 70x 70x 42x 1x 1x 41x 70x 1x 1x 43x 43x 44x 41x 44x 2x 2x 39x 39x 39x 39x 44x 13x 44x 44x 3x 44x 1x 1x 44x 1414x 1414x 1414x 1414x 1414x 1414x 1414x 1398x 1398x 1398x 1414x 2x 2x 37x 37x 37x 37x 4x 4x 4x 4x 4x 4x 4x 4x 4x 4x 1x 1x 37x 33x 33x 33x 33x 1x 33x 1x 1x 35x 35x 35x 2x 2x 2x 2x 2x 2x 2x 411x 411x | /** @import { ComponentAnalysis } from '../../types.js' */
/** @import { Css } from '#compiler' */
/** @import { Visitors } from 'zimmerframe' */
import { walk } from 'zimmerframe';
import * as e from '../../../errors.js';
import { is_keyframes_node } from '../../css.js';
/**
* @typedef {Visitors<
* Css.Node,
* {
* keyframes: string[];
* rule: Css.Rule | null;
* }
* >} CssVisitors
*/
/**
* True if is `:global(...)` or `:global`
* @param {Css.RelativeSelector} relative_selector
* @returns {relative_selector is Css.RelativeSelector & { selectors: [Css.PseudoClassSelector, ...Array<Css.PseudoClassSelector | Css.PseudoElementSelector>] }}
*/
function is_global(relative_selector) {
const first = relative_selector.selectors[0];
return (
first.type === 'PseudoClassSelector' &&
first.name === 'global' &&
(first.args === null ||
// Only these two selector types keep the whole selector global, because e.g.
// :global(button).x means that the selector is still scoped because of the .x
relative_selector.selectors.every(
(selector) =>
selector.type === 'PseudoClassSelector' || selector.type === 'PseudoElementSelector'
))
);
}
/**
* True if is `:global`
* @param {Css.SimpleSelector} simple_selector
*/
function is_global_block_selector(simple_selector) {
return (
simple_selector.type === 'PseudoClassSelector' &&
simple_selector.name === 'global' &&
simple_selector.args === null
);
}
/** @type {CssVisitors} */
const css_visitors = {
Atrule(node, context) {
if (is_keyframes_node(node)) {
if (!node.prelude.startsWith('-global-')) {
context.state.keyframes.push(node.prelude);
}
}
context.next();
},
ComplexSelector(node, context) {
context.next(); // analyse relevant selectors first
{
const global = node.children.find(is_global);
if (global) {
const idx = node.children.indexOf(global);
if (global.selectors[0].args !== null && idx !== 0 && idx !== node.children.length - 1) {
// ensure `:global(...)` is not used in the middle of a selector (but multiple `global(...)` in sequence are ok)
for (let i = idx + 1; i < node.children.length; i++) {
if (!is_global(node.children[i])) {
e.css_global_invalid_placement(global.selectors[0]);
}
}
}
}
}
// ensure `:global(...)` do not lead to invalid css after `:global()` is removed
for (const relative_selector of node.children) {
for (let i = 0; i < relative_selector.selectors.length; i++) {
const selector = relative_selector.selectors[i];
if (selector.type === 'PseudoClassSelector' && selector.name === 'global') {
const child = selector.args?.children[0].children[0];
// ensure `:global(element)` to be at the first position in a compound selector
if (child?.selectors[0].type === 'TypeSelector' && i !== 0) {
e.css_global_invalid_selector_list(selector);
}
// ensure `:global(.class)` is not followed by a type selector, eg: `:global(.class)element`
if (relative_selector.selectors[i + 1]?.type === 'TypeSelector') {
e.css_type_selector_invalid_placement(relative_selector.selectors[i + 1]);
}
// ensure `:global(...)`contains a single selector
// (standalone :global() with multiple selectors is OK)
if (
selector.args !== null &&
selector.args.children.length > 1 &&
(node.children.length > 1 || relative_selector.selectors.length > 1)
) {
e.css_global_invalid_selector(selector);
}
}
}
}
node.metadata.rule = context.state.rule;
node.metadata.used ||= node.children.every(
({ metadata }) => metadata.is_global || metadata.is_global_like
);
},
RelativeSelector(node, context) {
node.metadata.is_global = node.selectors.length >= 1 && is_global(node);
if (node.selectors.length === 1) {
const first = node.selectors[0];
node.metadata.is_global_like ||=
(first.type === 'PseudoClassSelector' && first.name === 'host') ||
(first.type === 'PseudoElementSelector' &&
[
'view-transition',
'view-transition-group',
'view-transition-old',
'view-transition-new',
'view-transition-image-pair'
].includes(first.name));
}
node.metadata.is_global_like ||= !!node.selectors.find(
(child) => child.type === 'PseudoClassSelector' && child.name === 'root'
);
context.next();
},
Rule(node, context) {
node.metadata.parent_rule = context.state.rule;
node.metadata.is_global_block = node.prelude.children.some((selector) => {
let is_global_block = false;
for (const child of selector.children) {
const idx = child.selectors.findIndex(is_global_block_selector);
if (is_global_block) {
// All selectors after :global are unscoped
child.metadata.is_global_like = true;
}
if (idx !== -1) {
is_global_block = true;
for (let i = idx + 1; i < child.selectors.length; i++) {
walk(/** @type {Css.Node} */ (child.selectors[i]), null, {
ComplexSelector(node) {
node.metadata.used = true;
}
});
}
}
}
return is_global_block;
});
if (node.metadata.is_global_block) {
if (node.prelude.children.length > 1) {
e.css_global_block_invalid_list(node.prelude);
}
const complex_selector = node.prelude.children[0];
const global_selector = complex_selector.children.find((r, selector_idx) => {
const idx = r.selectors.findIndex(is_global_block_selector);
if (idx === 0) {
if (r.selectors.length > 1 && selector_idx === 0 && node.metadata.parent_rule === null) {
e.css_global_block_invalid_modifier_start(r.selectors[1]);
}
return true;
} else if (idx !== -1) {
e.css_global_block_invalid_modifier(r.selectors[idx]);
}
});
if (!global_selector) {
throw new Error('Internal error: global block without :global selector');
}
if (global_selector.combinator && global_selector.combinator.name !== ' ') {
e.css_global_block_invalid_combinator(global_selector, global_selector.combinator.name);
}
const declaration = node.block.children.find((child) => child.type === 'Declaration');
if (
declaration &&
// :global { color: red; } is invalid, but foo :global { color: red; } is valid
node.prelude.children.length === 1 &&
node.prelude.children[0].children.length === 1 &&
node.prelude.children[0].children[0].selectors.length === 1
) {
e.css_global_block_invalid_declaration(declaration);
}
}
context.next({
...context.state,
rule: node
});
node.metadata.has_local_selectors = node.prelude.children.some((selector) => {
return selector.children.some(
({ metadata }) => !metadata.is_global && !metadata.is_global_like
);
});
},
NestingSelector(node, context) {
const rule = /** @type {Css.Rule} */ (context.state.rule);
const parent_rule = rule.metadata.parent_rule;
if (!parent_rule) {
// https://developer.mozilla.org/en-US/docs/Web/CSS/Nesting_selector#using_outside_nested_rule
const children = rule.prelude.children;
const selectors = children[0].children[0].selectors;
if (
children.length > 1 ||
selectors.length > 1 ||
selectors[0].type !== 'PseudoClassSelector' ||
selectors[0].name !== 'global' ||
selectors[0].args?.children[0]?.children[0].selectors[0] !== node
) {
e.css_nesting_selector_invalid_placement(node);
}
} else if (
// :global { &.foo { ... } } is invalid
parent_rule.metadata.is_global_block &&
!parent_rule.metadata.parent_rule &&
parent_rule.prelude.children[0].children.length === 1 &&
parent_rule.prelude.children[0].children[0].selectors.length === 1
) {
e.css_global_block_invalid_modifier_start(node);
}
context.next();
}
};
/**
* @param {Css.StyleSheet} stylesheet
* @param {ComponentAnalysis} analysis
*/
export function analyze_css(stylesheet, analysis) {
walk(stylesheet, { keyframes: analysis.css.keyframes, rule: null }, css_visitors);
}
|