fix: register createServerFn fetcher as serializable#5268
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schiller-manuel merged 3 commits intomainfrom Sep 28, 2025
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fix: register createServerFn fetcher as serializable#5268schiller-manuel merged 3 commits intomainfrom
schiller-manuel merged 3 commits intomainfrom
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WalkthroughAdds a TSS_SERVER_FUNCTION symbol flag to client fetcher types and tests; refactors router-core serializer typing by introducing DefaultSerializable and SerializableExtensions and redefining Serializable; and re-exports those serializer types from router-core's public API. Changes
Sequence Diagram(s)(Skipped — changes are type/API surface updates without runtime control-flow modifications.) Estimated code review effort🎯 3 (Moderate) | ⏱️ ~20 minutes Poem
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@tanstack/arktype-adapter
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📒 Files selected for processing (5)
packages/router-core/src/index.ts(1 hunks)packages/router-core/src/ssr/serializer/transformer.ts(1 hunks)packages/start-client-core/src/createServerFn.ts(2 hunks)packages/start-client-core/src/createStart.ts(2 hunks)packages/start-client-core/src/tests/createServerFn.test-d.ts(2 hunks)
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- packages/start-client-core/src/createServerFn.ts
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**/*.{ts,tsx}
📄 CodeRabbit inference engine (AGENTS.md)
Use TypeScript in strict mode with extensive type safety across the codebase
Files:
packages/router-core/src/index.tspackages/router-core/src/ssr/serializer/transformer.tspackages/start-client-core/src/createStart.tspackages/start-client-core/src/tests/createServerFn.test-d.ts
packages/router-core/**
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Keep framework-agnostic core router logic in packages/router-core/
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packages/router-core/src/index.tspackages/router-core/src/ssr/serializer/transformer.ts
packages/{*-start,start-*}/**
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Name and place Start framework packages under packages/-start/ or packages/start-/
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packages/start-client-core/src/createStart.tspackages/start-client-core/src/tests/createServerFn.test-d.ts
🧬 Code graph analysis (3)
packages/router-core/src/ssr/serializer/transformer.ts (1)
packages/router-core/src/index.ts (3)
DefaultSerializable(424-424)SerializableExtensions(423-423)Serializable(425-425)
packages/start-client-core/src/createStart.ts (3)
packages/router-core/src/index.ts (1)
SerializableExtensions(423-423)packages/router-core/src/ssr/serializer/transformer.ts (1)
SerializableExtensions(22-22)packages/start-client-core/src/index.tsx (1)
TSS_SERVER_FUNCTION(86-86)
packages/start-client-core/src/tests/createServerFn.test-d.ts (2)
packages/start-client-core/src/createServerFn.ts (1)
createServerFn(51-170)packages/start-client-core/src/index.tsx (2)
createServerFn(16-16)TSS_SERVER_FUNCTION(86-86)
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- GitHub Check: Test
| @@ -1,4 +1,5 @@ | |||
| import { createMiddleware } from './createMiddleware' | |||
| import type { TSS_SERVER_FUNCTION } from './constants' | |||
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Import TSS_SERVER_FUNCTION as a value so the computed property type-checks.
import type removes the runtime symbol, so when this module augmentation evaluates [TSS_SERVER_FUNCTION] there is no corresponding value and the file fails to compile ('TSS_SERVER_FUNCTION' only refers to a type, but is being used as a value here.). Pull the symbol in as a normal import (and keep using it in the ambient declaration) so the unique symbol is available.
-import type { TSS_SERVER_FUNCTION } from './constants'
+import { TSS_SERVER_FUNCTION } from './constants'Also applies to: 120-122
🤖 Prompt for AI Agents
In packages/start-client-core/src/createStart.ts around lines 2 and also lines
120-122, the symbol TSS_SERVER_FUNCTION is currently imported with "import type"
so it is erased at runtime and the module augmentation that uses
[TSS_SERVER_FUNCTION] fails to compile; change the import to a normal value
import (remove the "type" qualifier) so the unique symbol/value is present at
runtime and keep using that same identifier in the ambient declaration to allow
the computed property to type-check and compile.
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* fix: createServerFn fetcher has TSS_SERVER_FUNCTION symbol prop * add serializer extension, register server functions to be serializable * remove cast
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Summary by CodeRabbit
New Features
Refactor
Tests