Ubuntu 17.10下FlatBuffer include语句对enum无效的技术问询

Hey there! First off, let me clear this up right away: FlatBuffers' include statement absolutely supports all data types—not just tables. Enums, structs, unions, and even other type definitions are all fair game for inclusion and reuse across schema files. So your issue isn't that include doesn't work with enums, but rather something else in your setup or compilation process.

Let's walk through the most likely causes and fixes, since you already have experience getting included tables working:

• Double-check your schema include syntax and paths
  Make sure the path to your enum-containing .fbs file is correct relative to where you're running flatc, or use the --include-paths flag to tell flatc where to look for dependent schemas. For example:

  flatc --ts --include-paths ./schemas main.fbs
  

  Also, ensure your enum is defined properly in the included file (no typos, correct scope—if it's in a namespace, you'll need to reference it with that namespace in TypeScript).

• Verify you're compiling all dependent schemas
  Sometimes when using include, you need to pass all related .fbs files to flatc explicitly, not just your main schema. For example, if your main schema is app.fbs and it includes common_enums.fbs, run:

  flatc --ts common_enums.fbs app.fbs
  

  If you only pass app.fbs, older versions of flatc (like 1.7 you're using) might not automatically process the included enum file, leading to missing TypeScript definitions.

• Inspect the generated TypeScript code
  Take a look at the .ts files generated by flatc. Do you see your enum's definition anywhere? If it's missing, that confirms flatc didn't process the included enum file. If it is present, make sure you're importing/using it correctly in your code (e.g., if it's in a namespace like MyApp.Common, you'd reference it as MyApp.Common.MyEnum).

• Consider upgrading your flatc version
  FlatBuffers 1.7 is quite outdated at this point—there have been dozens of fixes and improvements to TypeScript code generation since then, including better handling of included types. Upgrading to a more recent version (even a 1.x patch release) might resolve the issue outright.

Since you've already gotten included tables working, the core include mechanism is functioning for you—focus on the above steps to get your enums loading properly.

内容的提问来源于stack exchange，提问作者Jason Fitch