Using object scalars generate undefined symbol names with gqlgen v0.13.0

[jwatte]

What happened?

I added a scalar that is typedefed to a map[string]interface{}
I got undefined symbol errors when trying to compile the generated code.

What did you expect?

I expected this to work

Minimal graphql.schema and models to reproduce

Trying to reproduce #1391 on v0.13.0, I ran into another problem.

I start with the "gqlgen init" sample todo framework, and make a few edits:

In schema.graphql:

scalar SomeObject
mutation {
doThing(input:SomeObject!):String!
}

in gqlgen.yml:

models:
SomeObject:
model: github.com/jwatte/gqlbug/foo.SomeObject

in foo/object.go:

type SomeObject map[string]interface{}

func (o *SomeObject) UnmarshalGQL(inst interface{}) error { ... }
func (o SomeObject) MashalQL(q io.Writer) { ... }

gqlgen generate then outputs this:

validation failed: packages.Load: /home/jwatte/go/src/gqlbug/graph/generated/generated.go:2309:17: ec.unmarshalInputSomeObject undefined (type *executionContext has no field or method unmarshalInputSomeObject)
/home/jwatte/go/src/gqlbug/graph/generated/generated.go:2320:12: ec._SomeObject undefined (type *executionContext has no field or method _SomeObject)

versions

• gqlgen version?
  v0.13.0

• go version?
  v1.14.2

• dep or go modules?
  go modules