All files / src/internal/client/dev elements.js

100% Statements 62/62
100% Branches 18/18
100% Functions 3/3
100% Lines 60/60

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 612x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 85x 203x 203x 203x 203x 203x 203x 85x 85x 2x 2x 2x 2x 2x 2x 198x 198x 198x 198x 198x 198x 198x 2x 2x 198x 2x 2x 2x 2x 2x 2x 205x 205x 205x 205x 205x 245x 6x 6x 5x 6x 245x 245x 198x 198x 245x 245x 245x 205x  
/** @import { SourceLocation } from '#shared' */
import { HYDRATION_END, HYDRATION_START, HYDRATION_START_ELSE } from '../../../constants.js';
import { hydrating } from '../dom/hydration.js';
 
/**
 * @param {any} fn
 * @param {string} filename
 * @param {SourceLocation[]} locations
 * @returns {any}
 */
export function add_locations(fn, filename, locations) {
	return (/** @type {any[]} */ ...args) => {
		const dom = fn(...args);
 
		var node = hydrating ? dom : dom.nodeType === 11 ? dom.firstChild : dom;
		assign_locations(node, filename, locations);
 
		return dom;
	};
}
 
/**
 * @param {Element} element
 * @param {string} filename
 * @param {SourceLocation} location
 */
function assign_location(element, filename, location) {
	// @ts-expect-error
	element.__svelte_meta = {
		loc: { file: filename, line: location[0], column: location[1] }
	};
 
	if (location[2]) {
		assign_locations(element.firstChild, filename, location[2]);
	}
}
 
/**
 * @param {Node | null} node
 * @param {string} filename
 * @param {SourceLocation[]} locations
 */
function assign_locations(node, filename, locations) {
	var i = 0;
	var depth = 0;
 
	while (node && i < locations.length) {
		if (hydrating && node.nodeType === 8) {
			var comment = /** @type {Comment} */ (node);
			if (comment.data === HYDRATION_START || comment.data === HYDRATION_START_ELSE) depth += 1;
			else if (comment.data[0] === HYDRATION_END) depth -= 1;
		}
 
		if (depth === 0 && node.nodeType === 1) {
			assign_location(/** @type {Element} */ (node), filename, locations[i++]);
		}
 
		node = node.nextSibling;
	}
}