All files / src utils.js

100% Statements 418/418
100% Branches 19/19
100% Functions 14/14
100% Lines 418/418

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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 4192x 2x 2x 2x 2x 2x 2x 238x 238x 238x 238x 238x 238x 238x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 27295x 27295x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 16788x 16788x 2x 2x 2x 2x 2x 413x 413x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 752x 752x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2557x 2557x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 1271x 1271x 1271x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 109x 109x 2x 2x 2x 2x 2x 2x 2x 2x 4330x 4330x 2x 2x 2x 2x 2x 1557x 1557x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 299x 299x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 9030x 9030x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 8925x 8925x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 24681x 24681x  
const regex_return_characters = /\r/g;
 
/**
 * @param {string} str
 * @returns {string}
 */
export function hash(str) {
	str = str.replace(regex_return_characters, '');
	let hash = 5381;
	let i = str.length;
 
	while (i--) hash = ((hash << 5) - hash) ^ str.charCodeAt(i);
	return (hash >>> 0).toString(36);
}
 
const VOID_ELEMENT_NAMES = [
	'area',
	'base',
	'br',
	'col',
	'command',
	'embed',
	'hr',
	'img',
	'input',
	'keygen',
	'link',
	'meta',
	'param',
	'source',
	'track',
	'wbr'
];
 
/**
 * Returns `true` if `name` is of a void element
 * @param {string} name
 */
export function is_void(name) {
	return VOID_ELEMENT_NAMES.includes(name) || name.toLowerCase() === '!doctype';
}
 
const RESERVED_WORDS = [
	'arguments',
	'await',
	'break',
	'case',
	'catch',
	'class',
	'const',
	'continue',
	'debugger',
	'default',
	'delete',
	'do',
	'else',
	'enum',
	'eval',
	'export',
	'extends',
	'false',
	'finally',
	'for',
	'function',
	'if',
	'implements',
	'import',
	'in',
	'instanceof',
	'interface',
	'let',
	'new',
	'null',
	'package',
	'private',
	'protected',
	'public',
	'return',
	'static',
	'super',
	'switch',
	'this',
	'throw',
	'true',
	'try',
	'typeof',
	'var',
	'void',
	'while',
	'with',
	'yield'
];
 
/**
 * Returns `true` if `word` is a reserved JavaScript keyword
 * @param {string} word
 */
export function is_reserved(word) {
	return RESERVED_WORDS.includes(word);
}
 
/**
 * @param {string} name
 */
export function is_capture_event(name) {
	return name.endsWith('capture') && name !== 'gotpointercapture' && name !== 'lostpointercapture';
}
 
/** List of Element events that will be delegated */
export const DELEGATED_EVENTS = [
	'beforeinput',
	'click',
	'change',
	'dblclick',
	'contextmenu',
	'focusin',
	'focusout',
	'input',
	'keydown',
	'keyup',
	'mousedown',
	'mousemove',
	'mouseout',
	'mouseover',
	'mouseup',
	'pointerdown',
	'pointermove',
	'pointerout',
	'pointerover',
	'pointerup',
	'touchend',
	'touchmove',
	'touchstart'
];
 
/**
 * Returns `true` if `event_name` is a delegated event
 * @param {string} event_name
 */
export function is_delegated(event_name) {
	return DELEGATED_EVENTS.includes(event_name);
}
 
/**
 * Attributes that are boolean, i.e. they are present or not present.
 */
export const DOM_BOOLEAN_ATTRIBUTES = [
	'allowfullscreen',
	'async',
	'autofocus',
	'autoplay',
	'checked',
	'controls',
	'default',
	'disabled',
	'formnovalidate',
	'hidden',
	'indeterminate',
	'ismap',
	'loop',
	'multiple',
	'muted',
	'nomodule',
	'novalidate',
	'open',
	'playsinline',
	'readonly',
	'required',
	'reversed',
	'seamless',
	'selected',
	'webkitdirectory'
];
 
/**
 * Returns `true` if `name` is a boolean attribute
 * @param {string} name
 */
export function is_boolean_attribute(name) {
	return DOM_BOOLEAN_ATTRIBUTES.includes(name);
}
 
/**
 * @type {Record<string, string>}
 * List of attribute names that should be aliased to their property names
 * because they behave differently between setting them as an attribute and
 * setting them as a property.
 */
const ATTRIBUTE_ALIASES = {
	// no `class: 'className'` because we handle that separately
	formnovalidate: 'formNoValidate',
	ismap: 'isMap',
	nomodule: 'noModule',
	playsinline: 'playsInline',
	readonly: 'readOnly'
};
 
/**
 * @param {string} name
 */
export function normalize_attribute(name) {
	name = name.toLowerCase();
	return ATTRIBUTE_ALIASES[name] ?? name;
}
 
const DOM_PROPERTIES = [
	...DOM_BOOLEAN_ATTRIBUTES,
	'formNoValidate',
	'isMap',
	'noModule',
	'playsInline',
	'readOnly',
	'value',
	'inert',
	'volume'
];
 
/**
 * @param {string} name
 */
export function is_dom_property(name) {
	return DOM_PROPERTIES.includes(name);
}
 
const PASSIVE_EVENTS = ['wheel', 'touchstart', 'touchmove', 'touchend', 'touchcancel'];
 
/**
 * Returns `true` if `name` is a passive event
 * @param {string} name
 */
export function is_passive_event(name) {
	return PASSIVE_EVENTS.includes(name);
}
 
const CONTENT_EDITABLE_BINDINGS = ['textContent', 'innerHTML', 'innerText'];
 
/** @param {string} name */
export function is_content_editable_binding(name) {
	return CONTENT_EDITABLE_BINDINGS.includes(name);
}
 
const LOAD_ERROR_ELEMENTS = [
	'body',
	'embed',
	'iframe',
	'img',
	'link',
	'object',
	'script',
	'style',
	'track'
];
 
/**
 * Returns `true` if the element emits `load` and `error` events
 * @param {string} name
 */
export function is_load_error_element(name) {
	return LOAD_ERROR_ELEMENTS.includes(name);
}
 
const SVG_ELEMENTS = [
	'altGlyph',
	'altGlyphDef',
	'altGlyphItem',
	'animate',
	'animateColor',
	'animateMotion',
	'animateTransform',
	'circle',
	'clipPath',
	'color-profile',
	'cursor',
	'defs',
	'desc',
	'discard',
	'ellipse',
	'feBlend',
	'feColorMatrix',
	'feComponentTransfer',
	'feComposite',
	'feConvolveMatrix',
	'feDiffuseLighting',
	'feDisplacementMap',
	'feDistantLight',
	'feDropShadow',
	'feFlood',
	'feFuncA',
	'feFuncB',
	'feFuncG',
	'feFuncR',
	'feGaussianBlur',
	'feImage',
	'feMerge',
	'feMergeNode',
	'feMorphology',
	'feOffset',
	'fePointLight',
	'feSpecularLighting',
	'feSpotLight',
	'feTile',
	'feTurbulence',
	'filter',
	'font',
	'font-face',
	'font-face-format',
	'font-face-name',
	'font-face-src',
	'font-face-uri',
	'foreignObject',
	'g',
	'glyph',
	'glyphRef',
	'hatch',
	'hatchpath',
	'hkern',
	'image',
	'line',
	'linearGradient',
	'marker',
	'mask',
	'mesh',
	'meshgradient',
	'meshpatch',
	'meshrow',
	'metadata',
	'missing-glyph',
	'mpath',
	'path',
	'pattern',
	'polygon',
	'polyline',
	'radialGradient',
	'rect',
	'set',
	'solidcolor',
	'stop',
	'svg',
	'switch',
	'symbol',
	'text',
	'textPath',
	'tref',
	'tspan',
	'unknown',
	'use',
	'view',
	'vkern'
];
 
/** @param {string} name */
export function is_svg(name) {
	return SVG_ELEMENTS.includes(name);
}
 
const MATHML_ELEMENTS = [
	'annotation',
	'annotation-xml',
	'maction',
	'math',
	'merror',
	'mfrac',
	'mi',
	'mmultiscripts',
	'mn',
	'mo',
	'mover',
	'mpadded',
	'mphantom',
	'mprescripts',
	'mroot',
	'mrow',
	'ms',
	'mspace',
	'msqrt',
	'mstyle',
	'msub',
	'msubsup',
	'msup',
	'mtable',
	'mtd',
	'mtext',
	'mtr',
	'munder',
	'munderover',
	'semantics'
];
 
/** @param {string} name */
export function is_mathml(name) {
	return MATHML_ELEMENTS.includes(name);
}
 
const RUNES = /** @type {const} */ ([
	'$state',
	'$state.frozen',
	'$state.snapshot',
	'$state.is',
	'$props',
	'$bindable',
	'$derived',
	'$derived.by',
	'$effect',
	'$effect.pre',
	'$effect.tracking',
	'$effect.root',
	'$inspect',
	'$inspect().with',
	'$host'
]);
 
/**
 * @param {string} name
 * @returns {name is RUNES[number]}
 */
export function is_rune(name) {
	return RUNES.includes(/** @type {RUNES[number]} */ (name));
}