init

2026-01-22 17:13:23 -06:00
parent 02b0f053d6
commit f15f7b8e38
1728 changed files with 925278 additions and 1 deletions
@@ -0,0 +1,110 @@
+/** @import { SSRContext } from '#server' */
+import { FILENAME } from '../../constants.js';
+import {
+	is_tag_valid_with_ancestor,
+	is_tag_valid_with_parent
+} from '../../html-tree-validation.js';
+import { get_stack } from '../shared/dev.js';
+import { set_ssr_context, ssr_context } from './context.js';
+import * as e from './errors.js';
+import { Renderer } from './renderer.js';
+
+// TODO move this
+/**
+ * @typedef {{
+ * 	tag: string;
+ * 	parent: undefined | Element;
+ *  filename: undefined | string;
+ *  line: number;
+ *  column: number;
+ * }} Element
+ */
+
+/**
+ * This is exported so that it can be cleared between tests
+ * @type {Set<string>}
+ */
+export let seen;
+
+/**
+ * @param {Renderer} renderer
+ * @param {string} message
+ */
+function print_error(renderer, message) {
+	message =
+		`node_invalid_placement_ssr: ${message}\n\n` +
+		'This can cause content to shift around as the browser repairs the HTML, and will likely result in a `hydration_mismatch` warning.';
+
+	if ((seen ??= new Set()).has(message)) return;
+	seen.add(message);
+
+	// eslint-disable-next-line no-console
+	console.error(message);
+	renderer.head((r) => r.push(`<script>console.error(${JSON.stringify(message)})</script>`));
+}
+
+/**
+ * @param {Renderer} renderer
+ * @param {string} tag
+ * @param {number} line
+ * @param {number} column
+ */
+export function push_element(renderer, tag, line, column) {
+	var context = /** @type {SSRContext} */ (ssr_context);
+	var filename = context.function[FILENAME];
+	var parent = context.element;
+	var element = { tag, parent, filename, line, column };
+
+	if (parent !== undefined) {
+		var ancestor = parent.parent;
+		var ancestors = [parent.tag];
+
+		const child_loc = filename ? `${filename}:${line}:${column}` : undefined;
+		const parent_loc = parent.filename
+			? `${parent.filename}:${parent.line}:${parent.column}`
+			: undefined;
+
+		const message = is_tag_valid_with_parent(tag, parent.tag, child_loc, parent_loc);
+		if (message) print_error(renderer, message);
+
+		while (ancestor != null) {
+			ancestors.push(ancestor.tag);
+			const ancestor_loc = ancestor.filename
+				? `${ancestor.filename}:${ancestor.line}:${ancestor.column}`
+				: undefined;
+
+			const message = is_tag_valid_with_ancestor(tag, ancestors, child_loc, ancestor_loc);
+			if (message) print_error(renderer, message);
+
+			ancestor = ancestor.parent;
+		}
+	}
+
+	set_ssr_context({ ...context, p: context, element });
+}
+
+export function pop_element() {
+	set_ssr_context(/** @type {SSRContext} */ (ssr_context).p);
+}
+
+/**
+ * @param {Renderer} renderer
+ */
+export function validate_snippet_args(renderer) {
+	if (
+		typeof renderer !== 'object' ||
+		// for some reason typescript consider the type of renderer as never after the first instanceof
+		!(renderer instanceof Renderer)
+	) {
+		e.invalid_snippet_arguments();
+	}
+}
+
+export function get_user_code_location() {
+	const stack = get_stack();
+
+	return stack
+		.filter((line) => line.trim().startsWith('at '))
+		.map((line) => line.replace(/\((.*):\d+:\d+\)$/, (_, file) => `(${file})`))
+		.join('\n');
+}