Enum serialization with negative values duplicates enum keys

[bzh2610]

I have an OpenAPI spec generated in JSON containing the following enum :

 "CustomType": {
   "enum": [0, 1, 2, 3, -1],
   "type": "integer",
   "format": "int32"
 },

If I check the custom typescript file generated, I get the following :

export enum CustomType {
  $0 = 0,
  $1 = 1,
  $2 = 2,
  $3 = 3,
  $1 = -1,
}

Which doesn't compile as we redeclare $1 twice.
Is there any workarround or configuration I missed ?

I can provide a code sandox if needed for reproduction.

[Colleoni]

I encounter a similar behaviour with special characters:

AgeRangeEnum:
  enum:
  - 18+
  - <18
  type: string
  description: |-
    * `18+` - Adult
    * `<18` - Underage

which results in

export enum AgeRangeEnum {
 $18 = '18+',
 $18 = '<18'
}

[luisfpg]

Sorry for taking too long to react. I'm having zero time to work on this project, and at Cyclos (we created this project to for it) the current features have been working for years, but depending on the use case, specific bugs could pop up...

Honestly we've been using "enumStyle": "alias" in the configuration file. It is better generates zero bytes in the code output, generating a type alias for enum schemas (such as export type AgeRangeEnum = '18+' | '<18').

Can you try it as a workaround while this issue is open?

I consider changing the default for this in a future version.