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 89x 219x 219x 219x 219x 219x 219x 89x 89x 2x 2x 2x 2x 2x 2x 220x 220x 220x 220x 220x 220x 220x 2x 2x 220x 2x 2x 2x 2x 2x 2x 221x 221x 221x 221x 221x 281x 8x 8x 7x 8x 281x 281x 220x 220x 281x 281x 281x 221x  
/** @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;
	}
}