build_route_tree() — svelte Function Reference

Architecture documentation for the build_route_tree() function in download.js from the svelte codebase.

Function javascript Compiler Parser called by 1

Entity Profile

Compiler→ Parser→ build_route_tree() — svelte Function Reference

Dependency Diagram

graph TD
  169d027f_570a_0058_99af_8bec7c7047b4["build_route_tree()"]
  65d20932_41e6_eeee_7338_5dd0682e5e42["download.js"]
  169d027f_570a_0058_99af_8bec7c7047b4 -->|defined in| 65d20932_41e6_eeee_7338_5dd0682e5e42
  04de3495_cffc_dc6d_e930_d1c6d03a3a34["convert_sveltekit_project()"]
  04de3495_cffc_dc6d_e930_d1c6d03a3a34 -->|calls| 169d027f_570a_0058_99af_8bec7c7047b4
  style 169d027f_570a_0058_99af_8bec7c7047b4 fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

playgrounds/sandbox/scripts/download.js lines 299–323

function build_route_tree(files, routes_prefix) {
	/** @type {Map<string, {layout?: {path: string, contents: string}, page?: {path: string, contents: string}}>} */
	const routes = new Map();

	for (const file of files) {
		if (!file.path.startsWith(routes_prefix)) continue;

		const relative_to_routes = file.path.slice(routes_prefix.length + 1); // +1 for the slash
		const dir = path.dirname(relative_to_routes);
		const route_key = dir === '.' ? '' : dir;

		if (!routes.has(route_key)) {
			routes.set(route_key, {});
		}

		const route = routes.get(route_key);
		if (file.name === '+layout.svelte') {
			route.layout = { path: file.path, contents: file.contents };
		} else if (file.name === '+page.svelte') {
			route.page = { path: file.path, contents: file.contents };
		}
	}

	return routes;
}