TS2742: The inferred type of 'X' cannot be named without a reference #60624

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1. Andarist commented on Nov 27, 2024

   

   Mateusz Burzyński (Andarist)

   on Nov 27, 2024

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   Project builds successfull with TypeScript <= 5.6.3.

   What's the emitted declaration for Price there?
2. Aliaksandr-K-JazzTeam commented on Nov 27, 2024

   

   Aliaksandr-K-JazzTeam

   on Nov 27, 2024

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   Mateusz Burzyński (@Andarist) its enum generated from proto file

   ...
   enum Price {
     PRICE_UNSPECIFIED = 0;
     PRICE_PAID = 1;
     PRICE_FREE = 2;
   }
   ...
3. Andarist commented on Nov 27, 2024

   

   Mateusz Burzyński (Andarist)

   on Nov 27, 2024

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   This error is raised on:

   export const Price = /*@__PURE__*/ proto3.makeEnum(

   when attempting to generate a .d.ts for the containing file. I wonder what TS put before at this position:

   // generated.d.ts
   export declare const Price: ???
4. Aliaksandr-K-JazzTeam commented on Nov 27, 2024

   

   Aliaksandr-K-JazzTeam

   on Nov 27, 2024

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   in d.ts file generated by @bufbuild/protoc-gen-es
   buf.gen.yaml

   version: v1
   plugins:
     - plugin: es
       out: src/protos
       opt: target=js+dts
     - plugin: connect-es
       out: src/protos
       opt:
         - target=js+dts

   I see next lines

   export declare enum Price {
     /**
      * @generated from enum value: PRICE_UNSPECIFIED = 0;
      */
     UNSPECIFIED = 0,
   
     /**
      * @generated from enum value: PRICE_PAID = 1;
      */
     PAID = 1,
   
     /**
      * @generated from enum value: PRICE_FREE = 2;
      */
     FREE = 2,
   }

   when I build project with tsc (typescript 5.6.3) then in dist folder d.ts proto file looks like:

   export const Price: import("../../../../node_modules/@bufbuild/protobuf/dist/esm/private/enum.js").EnumObject;

   I don't know what else you want from me.
5. Andarist commented on Nov 27, 2024

   

   Mateusz Burzyński (Andarist)

   on Nov 27, 2024

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   I was interested exactly in this information:

   export const Price: import("../../../../node_modules/@bufbuild/protobuf/dist/esm/private/enum.js").EnumObject;

   Thank you for providing it.

   To be fair, this emitted declaration wasn't really that portable in the first place. I don't know what changed in which PR but an emitted type like this is sus.

   To address this issue I'd recommend doing this:

   • adding a dependency on @bufbuild/protobuf. Presumably this is a dependency of your dependency (a so-called transitive dependency)
   • making sure that EnumObject can be imported from @bufbuild/protobuf
   • try to annotate const Price: ? manually. If you can't do it manually then the compiler won't be able to do so either
6. RyanCavanaugh commented on Nov 27, 2024

   

   Ryan Cavanaugh (RyanCavanaugh)

   on Nov 27, 2024

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   See #58176 (comment) and #42873 (comment)
7. Ryan Cavanaugh (RyanCavanaugh)

   added

   Not a DefectThis behavior is one of several equally-correct optionsThis behavior is one of several equally-correct options

   on Nov 27, 2024
8. typescript-bot commented on Nov 30, 2024

   

   TypeScript Bot (typescript-bot)

   on Nov 30, 2024

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   This issue has been marked as "Not a Defect" and has seen no recent activity. It has been automatically closed for house-keeping purposes.
9. TypeScript Bot (typescript-bot)

   closed this as not plannedon Nov 30, 2024
10. microsoft

    locked as resolved and limited conversation to collaborators on Oct 22, 2025