swag init doesn't parse 'module' dependencies for types, they must be vendored

[jonathanwin]

When a type is declared in a dependency, swag init fails with "cannot find type definition: ..."
To successfully generate docs, dependencies must be vendored with go mod vendor and then use swag init -parseVendor

Is this intended/an unmentioned limitation?

Thanks!!

To Reproduce

1. Setup project: example.com/swagmodtest (within or outside of GOPATH):
   ~/swagmodtest/main.go or $GOPATH/example.com/swagmodtest/main.go

package main

import (
	"fmt"

	"go.mongodb.org/mongo-driver/bson/primitive"
)

// @id test
// @Router /test [get]
// @Success 200 {array} primitive.Binary
func main() {
	var t primitive.Binary
	fmt.Println(t)
}

2. go mod init example.com/swagmodtest
3. go mod tidy
4. swag init
   [...]/main.go :cannot find type definition: primitive.Binary

Fix with vendoring

1. go mod vendor
2. swag init -parseVendor
   swagger.yaml:

definitions:
  primitive.Binary:
    properties:
      data:
        items:
          type: integer
        type: array
      subtype:
        type: integer
    type: object
info:
  contact: {}
paths:
  /test:
    get:
      operationId: test
      responses:
        "200":
          description: OK
          schema:
            items:
              $ref: '#/definitions/primitive.Binary'
            type: array
swagger: "2.0"

Your swag version

• swag version v1.16.2

Your go version

• go version go1.18.3 linux/amd64

Desktop:

• OS: debian bullseye

Additional context
The code builds/runs fine with go modules and no vendoring

$ rm vendor/ -rf
$ go run main.go 
{0 []}

[sdghchj]

swag init --parseDependency

[jonathanwin]

Well, doh!
That works

Maybe the documentation needs to be updated:
README.md indicates:
--parseDependency Parse go files in outside dependency folder, disabled by default

swag init --help indicates:
--parseDependency, --pd Parse go files inside dependency folder, disabled by default (default: false)

Go modules are not a single "dependency folder" AFAIK.
Is there any source other than go.mod that --parseDependency enables?

Maybe a better explanation would be:
--parseDependency, --pd Parse dependencies from go modules (go.mod); disabled by default (default: false)

[itaranto]

I've found that --parseGoList does the job better, it allows you to reference any type without needing to do awkward "underscore" imports.

I wonder why this isn't the default...

[itaranto]

I've found that --parseGoList does the job better, it allows you to reference any type without needing to do awkward "underscore" imports.

I wonder why this isn't the default...

Oh, it is the default. I may have been confused somehow...