Generating Struct with Embedded Imported Type

[lorena-mv]

Hi all, I am attempting to generate a struct type that includes an embedded field from an imported type. However, I am not achieving the desired result.

Here is the struct I aim to generate:

import "github.com/golang-jwt/jwt"

type MyClaims struct {
	Org    string      `json:"org"`
	User string      `json:"user"`
	jwt.StandardClaims
}

The spec I am using is as follows:

    MyClaims:
      allOf:
        - properties:
            user:
              type: string
            org:
              type: string
          required:
            - user
            - org
        - $ref: '#/components/schemas/JWTStandardClaims'
    
    JWTStandardClaims:
      type: object
      x-go-type: jwt.StandardClaims
      x-go-type-import:
        path: github.com/golang-jwt/jwt
        name: jwt

old-merge-schemas: false

When I use the default merge schemas configuration (old-merge-schemas: false), the generated MyClaims is merely a type definition on jwt.StandardClaims, and the additional fields are not included:

import jwt "github.com/golang-jwt/jwt"

// MyClaims defines model for MyClaims.
type MyClaims jwt.StandardClaims

// JWTStandardClaims defines model for JWTStandardClaims.
type JWTStandardClaims jwt.StandardClaims

old-merge-schemas: true

If I switch to the old merge schemas configuration (old-merge-schemas: true), I get a struct with the JWTStandardClaims type embedded, rather than jwt.StandardClaims. The generated struct includes all the fields, but the embedded struct is not of the expected type:

import jwt "github.com/golang-jwt/jwt"

// MyClaims defines model for MyClaims.
type MyClaims struct {
	// Embedded fields due to inline allOf schema
	Org    string      `json:"org"`
	User string      `json:"user"`
	// Embedded struct due to allOf(#/components/schemas/JWTStandardClaims)
	JWTStandardClaims `yaml:",inline"`
}

// JWTStandardClaims defines model for JWTStandardClaims.
type JWTStandardClaims jwt.StandardClaims

Is there a configuration or method that would allow me to generate the desired struct? Any guidance would be greatly appreciated.

[veritymedia]

I would love to also get some clarity on this. I have spent a good 12 hours trying to generate oapi spec from imported types. Up to the point of writing a module with AST parsing to detect structs and myself generate the schema...

Is x-go-type/-import supposed to be for this??

[Jiehong]

Looks like there is a old draft PR to re-add this: https://github.com/oapi-codegen/oapi-codegen/pull/1295