From bcd907990fd9f99a0c7cbb67fc6b6c62793d0c3d Mon Sep 17 00:00:00 2001
From: paoloricciuti <ricciutipaolo@gmail.com>
Date: Wed, 9 Oct 2024 18:09:31 +0200
Subject: [PATCH] fix: consider `<svelte:options runes />` to determine
 `ExportedNames`

---
 packages/svelte2tsx/src/svelte2tsx/index.ts   | 23 +++++++++++++++----
 .../src/svelte2tsx/nodes/ExportedNames.ts     |  5 ++--
 .../processInstanceScriptContent.ts           | 12 ++++++++--
 3 files changed, 32 insertions(+), 8 deletions(-)

diff --git a/packages/svelte2tsx/src/svelte2tsx/index.ts b/packages/svelte2tsx/src/svelte2tsx/index.ts
index 91e0d6b5a..87e6779c4 100644
--- a/packages/svelte2tsx/src/svelte2tsx/index.ts
+++ b/packages/svelte2tsx/src/svelte2tsx/index.ts
@@ -44,6 +44,7 @@ type TemplateProcessResult = {
     events: ComponentEvents;
     resolvedStores: string[];
     usesAccessors: boolean;
+    isRunes: boolean;
 };
 
 function processSvelteTemplate(
@@ -64,6 +65,7 @@ function processSvelteTemplate(
     let uses$$restProps = false;
     let uses$$slots = false;
     let usesAccessors = !!options.accessors;
+    let isRunes = false;
 
     const componentDocumentation = new ComponentDocumentation();
 
@@ -92,6 +94,9 @@ function processSvelteTemplate(
                         usesAccessors = true;
                     }
                     break;
+                case 'runes':
+                    isRunes = true;
+                    break;
             }
         }
     };
@@ -303,7 +308,8 @@ function processSvelteTemplate(
         uses$$slots,
         componentDocumentation,
         resolvedStores,
-        usesAccessors
+        usesAccessors,
+        isRunes
     };
 }
 
@@ -342,7 +348,8 @@ export function svelte2tsx(
         events,
         componentDocumentation,
         resolvedStores,
-        usesAccessors
+        usesAccessors,
+        isRunes
     } = processSvelteTemplate(str, options.parse || parse, {
         ...options,
         svelte5Plus
@@ -370,7 +377,14 @@ export function svelte2tsx(
         : instanceScriptTarget;
     const implicitStoreValues = new ImplicitStoreValues(resolvedStores, renderFunctionStart);
     //move the instance script and process the content
-    let exportedNames = new ExportedNames(str, 0, basename, options?.isTsFile, svelte5Plus);
+    let exportedNames = new ExportedNames(
+        str,
+        0,
+        basename,
+        options?.isTsFile,
+        svelte5Plus,
+        isRunes
+    );
     let generics = new Generics(str, 0, { attributes: [] } as any);
     let uses$$SlotsInterface = false;
     if (scriptTag) {
@@ -387,7 +401,8 @@ export function svelte2tsx(
             /**hasModuleScripts */ !!moduleScriptTag,
             options?.isTsFile,
             basename,
-            svelte5Plus
+            svelte5Plus,
+            isRunes
         );
         uses$$props = uses$$props || res.uses$$props;
         uses$$restProps = uses$$restProps || res.uses$$restProps;
diff --git a/packages/svelte2tsx/src/svelte2tsx/nodes/ExportedNames.ts b/packages/svelte2tsx/src/svelte2tsx/nodes/ExportedNames.ts
index 91ec37aba..8184da952 100644
--- a/packages/svelte2tsx/src/svelte2tsx/nodes/ExportedNames.ts
+++ b/packages/svelte2tsx/src/svelte2tsx/nodes/ExportedNames.ts
@@ -55,7 +55,8 @@ export class ExportedNames {
         private astOffset: number,
         private basename: string,
         private isTsFile: boolean,
-        private isSvelte5Plus: boolean
+        private isSvelte5Plus: boolean,
+        private isRunes: boolean
     ) {}
 
     handleVariableStatement(node: ts.VariableStatement, parent: ts.Node): void {
@@ -808,6 +809,6 @@ export class ExportedNames {
     }
 
     usesRunes() {
-        return this.hasRunesGlobals || this.hasPropsRune();
+        return this.hasRunesGlobals || this.hasPropsRune() || this.isRunes;
     }
 }
diff --git a/packages/svelte2tsx/src/svelte2tsx/processInstanceScriptContent.ts b/packages/svelte2tsx/src/svelte2tsx/processInstanceScriptContent.ts
index e226c2b1b..044aeb83a 100644
--- a/packages/svelte2tsx/src/svelte2tsx/processInstanceScriptContent.ts
+++ b/packages/svelte2tsx/src/svelte2tsx/processInstanceScriptContent.ts
@@ -42,7 +42,8 @@ export function processInstanceScriptContent(
     hasModuleScript: boolean,
     isTSFile: boolean,
     basename: string,
-    isSvelte5Plus: boolean
+    isSvelte5Plus: boolean,
+    isRunes: boolean
 ): InstanceScriptProcessResult {
     const htmlx = str.original;
     const scriptContent = htmlx.substring(script.content.start, script.content.end);
@@ -54,7 +55,14 @@ export function processInstanceScriptContent(
         ts.ScriptKind.TS
     );
     const astOffset = script.content.start;
-    const exportedNames = new ExportedNames(str, astOffset, basename, isTSFile, isSvelte5Plus);
+    const exportedNames = new ExportedNames(
+        str,
+        astOffset,
+        basename,
+        isTSFile,
+        isSvelte5Plus,
+        isRunes
+    );
     const generics = new Generics(str, astOffset, script);
     const interfacesAndTypes = new InterfacesAndTypes();