From 13f7fbdb9b4d927059f5a7337451798dbc8f9a3e Mon Sep 17 00:00:00 2001
From: Rich Harris <rich.harris@vercel.com>
Date: Mon, 30 Jun 2025 13:31:14 -0400
Subject: [PATCH] make runes globally available

---
 packages/svelte/src/compiler/phases/2-analyze/index.js |  6 ++++--
 packages/svelte/src/compiler/phases/types.d.ts         |  1 +
 packages/svelte/src/compiler/state.js                  | 10 +++++++++-
 3 files changed, 14 insertions(+), 3 deletions(-)

diff --git a/packages/svelte/src/compiler/phases/2-analyze/index.js b/packages/svelte/src/compiler/phases/2-analyze/index.js
index 0737b47aea..fcfc6c15aa 100644
--- a/packages/svelte/src/compiler/phases/2-analyze/index.js
+++ b/packages/svelte/src/compiler/phases/2-analyze/index.js
@@ -274,7 +274,8 @@ export function analyze_module(source, options) {
 	state.reset({
 		dev: options.dev,
 		filename: options.filename,
-		rootDir: options.rootDir
+		rootDir: options.rootDir,
+		runes: true
 	});
 
 	walk(
@@ -517,7 +518,8 @@ export function analyze_component(root, source, options) {
 	state.reset({
 		dev: options.dev,
 		filename: options.filename,
-		rootDir: options.rootDir
+		rootDir: options.rootDir,
+		runes: true
 	});
 
 	if (!runes) {
diff --git a/packages/svelte/src/compiler/phases/types.d.ts b/packages/svelte/src/compiler/phases/types.d.ts
index 661f363991..876363bd16 100644
--- a/packages/svelte/src/compiler/phases/types.d.ts
+++ b/packages/svelte/src/compiler/phases/types.d.ts
@@ -35,6 +35,7 @@ export interface ReactiveStatement {
 export interface Analysis {
 	module: Js;
 	name: string; // TODO should this be filename? it's used in `compileModule` as well as `compile`
+	/** @deprecated use `runes` from `state.js` instead */
 	runes: boolean;
 	immutable: boolean;
 	tracing: boolean;
diff --git a/packages/svelte/src/compiler/state.js b/packages/svelte/src/compiler/state.js
index cfcd2ac480..633611e695 100644
--- a/packages/svelte/src/compiler/state.js
+++ b/packages/svelte/src/compiler/state.js
@@ -28,6 +28,8 @@ export let source;
  */
 export let dev;
 
+export let runes = false;
+
 export let locator = getLocator('', { offsetLine: 1 });
 
 /** @param {string} value */
@@ -92,13 +94,19 @@ export function is_ignored(node, code) {
 }
 
 /**
- * @param {{ dev: boolean; filename: string; rootDir?: string }} state
+ * @param {{
+ *   dev: boolean;
+ *   filename: string;
+ *   rootDir?: string;
+ *   runes: boolean;
+ * }} state
  */
 export function reset(state) {
 	const root_dir = state.rootDir?.replace(/\\/g, '/');
 	filename = state.filename.replace(/\\/g, '/');
 
 	dev = !!state.dev;
+	runes = !!state.runes;
 
 	if (typeof root_dir === 'string' && filename.startsWith(root_dir)) {
 		// make filename relative to rootDir