fix

Author: Rich-Harris

packages/svelte/package.json

@@ -171,7 +171,7 @@
     "axobject-query": "^4.1.0",
     "clsx": "^2.1.1",
     "esm-env": "^1.2.1",
-    "esrap": "https://pkg.pr.new/sveltejs/esrap@ef4051a",
+    "esrap": "https://pkg.pr.new/sveltejs/esrap@17c22f5",
     "is-reference": "^3.0.3",
     "locate-character": "^3.0.0",
     "magic-string": "^0.30.11",

packages/svelte/scripts/process-messages/index.js

@@ -147,7 +147,6 @@ function run() {
 
 		const printed = esrap.print(
 			ast,
-			// @ts-expect-error
 			ts({
 				comments: comments.filter((comment) => comment !== jsdoc)
 			})
@@ -358,7 +357,6 @@ function run() {
 					.join('\n')
 			};
 
-			// @ts-expect-error
 			const block = esrap.print({ ...ast, body: [clone] }, ts({ comments: [jsdoc_clone] })).code;
 
 			printed.code += `\n\n${block}`;

packages/svelte/src/compiler/phases/1-parse/acorn.js

@@ -107,6 +107,8 @@ function get_comment_handlers(source, comments, index = 0) {
 		 * @param {string} value
 		 * @param {number} start
 		 * @param {number} end
+		 * @param {import('acorn').Position} [start_loc]
+		 * @param {import('acorn').Position} [end_loc]
 		 */
 		onComment: (block, value, start, end, start_loc, end_loc) => {
 			if (block && /\n/.test(value)) {
@@ -125,7 +127,10 @@ function get_comment_handlers(source, comments, index = 0) {
 				value,
 				start,
 				end,
-				loc: { start: start_loc, end: end_loc }
+				loc: {
+					start: /** @type {import('acorn').Position} */ (start_loc),
+					end: /** @type {import('acorn').Position} */ (end_loc)
+				}
 			});
 		},
 

packages/svelte/src/compiler/print/index.js

@@ -10,7 +10,6 @@ import { is_void } from '../../utils.js';
 export function print(ast) {
 	// @ts-expect-error some bullshit
 	return esrap.print(ast, {
-		// @ts-expect-error some bullshit
 		...ts({ comments: ast.type === 'Root' ? ast.comments : [] }),
 		...visitors
 	});
@@ -641,13 +640,23 @@ const visitors = {
 		for (const modifier of node.modifiers) {
 			context.write(`|${modifier}`);
 		}
-		if (
-			node.expression !== null &&
-			!(node.expression.type === 'Identifier' && node.expression.name === node.name)
-		) {
-			context.write('={');
-			context.visit(node.expression);
-			context.write('}');
+
+		if (node.value === true) {
+			return;
+		}
+
+		context.write('=');
+
+		if (Array.isArray(node.value)) {
+			context.write('"');
+
+			for (const tag of node.value) {
+				context.visit(tag);
+			}
+
+			context.write('"');
+		} else {
+			context.visit(node.value);
 		}
 	},
 
@@ -746,7 +755,7 @@ const visitors = {
 		context.write('<svelte:element');
 
 		context.write('this={');
-		context.visit(node.expression);
+		context.visit(node.tag);
 		context.write('} ');
 
 		for (const attribute of node.attributes) {

packages/svelte/src/compiler/types/template.d.ts

@@ -73,7 +73,7 @@ export namespace AST {
 		/** The parsed `<script module>` element, if exists */
 		module: Script | null;
 		/** Comments found in <script> and {expressions} */
-		comments: import('estree').Comment[];
+		comments: Array<import('estree').Comment & { start: number; end: number }>;
 		/** @internal */
 		metadata: {
 			/** Whether the component was parsed with typescript */