Runtime error when using a type with the name of "Subscription"

[dclipca]

What happened?

Added a new type with the name of "Subscription"
go run github.com/99designs/gqlgen generate

panic: runtime error: invalid memory address or nil pointer dereference
[signal 0xc0000005 code=0x0 addr=0x10 pc=0xb8e9c7]

goroutine 1 [running]:
github.com/99designs/gqlgen/codegen/config.(*TypeReference).IsPtr(...)
        C:/Users/dclip/go/pkg/mod/github.com/99designs/[email protected]/codegen/config/binder.go:214
github.com/99designs/gqlgen/codegen.(*builder).buildField(0xc0011d7a10, 0xc000705f80, 0xc0002cf810)
        C:/Users/dclip/go/pkg/mod/github.com/99designs/[email protected]/codegen/field.go:74 +0x4a7
github.com/99designs/gqlgen/codegen.(*builder).buildObject(0xc0011d7a10, 0xc0002d2600)
        C:/Users/dclip/go/pkg/mod/github.com/99designs/[email protected]/codegen/object.go:73 +0x525
github.com/99designs/gqlgen/codegen.BuildData(0xc000072000)
        C:/Users/dclip/go/pkg/mod/github.com/99designs/[email protected]/codegen/data.go:90 +0x34b
github.com/99designs/gqlgen/api.Generate(0xc000072000, {0x0, 0x0, 0xc00010c100})
        C:/Users/dclip/go/pkg/mod/github.com/99designs/[email protected]/api/generate.go:72 +0x527
github.com/99designs/gqlgen/cmd.glob..func1(0xc000056240)
        C:/Users/dclip/go/pkg/mod/github.com/99designs/[email protected]/cmd/gen.go:38 +0xa5
github.com/urfave/cli/v2.(*Command).Run(0x1048100, 0xc000056200)
        C:/Users/dclip/go/pkg/mod/github.com/urfave/cli/[email protected]/command.go:163 +0x64a
github.com/urfave/cli/v2.(*App).RunContext(0xc000040ea0, {0xd5e2d0, 0xc00012a078}, {0xc0001243a0, 0x2, 0x2})
        C:/Users/dclip/go/pkg/mod/github.com/urfave/cli/[email protected]/app.go:313 +0x81e
github.com/urfave/cli/v2.(*App).Run(...)
        C:/Users/dclip/go/pkg/mod/github.com/urfave/cli/[email protected]/app.go:224
github.com/99designs/gqlgen/cmd.Execute()
        C:/Users/dclip/go/pkg/mod/github.com/99designs/[email protected]/cmd/root.go:41 +0x245
main.main()
        C:/Users/dclip/go/pkg/mod/github.com/99designs/[email protected]/main.go:8 +0x17
exit status 2
PS C:\Users\dclip\Desktop\3dxfans\backend> 

I did quite a few tests and it seems to be triggered by the "Subscription" name. When I use "SubscriptionC", it works.

What did you expect?

No errors.

Minimal graphql.schema and models to reproduce

type Subscription {
  id_provider: ID!
  id_subscriber: ID!
}
input GetSubscriptionInput {
  id_provider: ID
  id_subscriber: ID
}
subscription(input: GetSubscriptionInput!): RecurringSubscription

versions

• gqlgen version: v0.16.0
• go version:v1.17.2
• dep or go modules?: modules

[ajlive]

Ran into the exact same problem. It seems adding any valid character to the beginning, end, or middle of "Subscription" sidesteps the error. Top ten bizarre bugs.

[ajlive]

Hahahaha Subscription is a reserved object name in GraphQL: https://www.apollographql.com/docs/react/data/subscriptions/#server-side. Good thing it's so rarely use in business logic /s
🤦‍♂️

[ajlive]

Anyway, obviously this isn't gqlgen's fault. All gqlgen might be able to do is give a more descriptive error than a nil pointer dereference.