fix: support "Build-Free Editing with Project References" in SvelteKit page.ts files (#2788)

jasonlyu123 · web-flow · commit 8c11512693ea · 2025-06-27T10:55:00.000+08:00
diff --git a/packages/typescript-plugin/src/language-service/sveltekit.ts b/packages/typescript-plugin/src/language-service/sveltekit.ts
@@ -23,6 +23,7 @@ declare module 'typescript/lib/tsserverlibrary' {
         /** @internal */ getPackageJsonAutoImportProvider?(): ts.Program | undefined;
 
         /** @internal*/ getModuleResolutionCache?(): ts.ModuleResolutionCache;
+        /** @internal */ useSourceOfProjectReferenceRedirect?(): boolean;
     }
 }
 
@@ -780,6 +781,11 @@ function getProxiedLanguageService(info: ts.server.PluginCreateInfo, ts: _ts, lo
         getModuleResolutionCache = originalLanguageServiceHost.getModuleResolutionCache
             ? () => originalLanguageServiceHost.getModuleResolutionCache!()
             : undefined;
+
+        useSourceOfProjectReferenceRedirect =
+            originalLanguageServiceHost.useSourceOfProjectReferenceRedirect
+                ? () => originalLanguageServiceHost.useSourceOfProjectReferenceRedirect!()
+                : undefined;
     }
 
     // Ideally we'd create a full Proxy of the language service, but that seems to have cache issues

Original file line number	Diff line number	Diff line change
`@@ -23,6 +23,7 @@ declare module 'typescript/lib/tsserverlibrary' {`
`23`	`23`	`/** @internal */ getPackageJsonAutoImportProvider?(): ts.Program \| undefined;`
`24`	`24`
`25`	`25`	`/** @internal*/ getModuleResolutionCache?(): ts.ModuleResolutionCache;`
	`26`	`+ /** @internal */ useSourceOfProjectReferenceRedirect?(): boolean;`
`26`	`27`	`}`
`27`	`28`	`}`
`28`	`29`
`@@ -780,6 +781,11 @@ function getProxiedLanguageService(info: ts.server.PluginCreateInfo, ts: _ts, lo`
`780`	`781`	`getModuleResolutionCache = originalLanguageServiceHost.getModuleResolutionCache`
`781`	`782`	`? () => originalLanguageServiceHost.getModuleResolutionCache!()`
`782`	`783`	`: undefined;`
	`784`	`+`
	`785`	`+ useSourceOfProjectReferenceRedirect =`
	`786`	`+ originalLanguageServiceHost.useSourceOfProjectReferenceRedirect`
	`787`	`+ ? () => originalLanguageServiceHost.useSourceOfProjectReferenceRedirect!()`
	`788`	`+ : undefined;`
`783`	`789`	`}`
`784`	`790`
`785`	`791`	`// Ideally we'd create a full Proxy of the language service, but that seems to have cache issues`