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

100% Statements 62/62
100% Branches 19/19
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 96x 236x 236x 236x 236x 236x 236x 96x 96x 2x 2x 2x 2x 2x 2x 272x 272x 272x 272x 272x 272x 272x 2x 2x 272x 2x 2x 2x 2x 2x 2x 238x 238x 238x 238x 238x 368x 11x 11x 9x 11x 368x 368x 272x 272x 368x 368x 368x 238x  
/** @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;
	}
}