regression with interface model

[MichaelMure]

What happened?

I upgraded gqlgen from 0.9.2 to 0.10.1 (git-bug/git-bug#221) and now the generated code doesn't compile.

What did you expect?

A working codebase after the upgrade because gqlgen is a high quality package. It was pretty close though :)

I get errors like:

graphql/graph/gen_graph.go:14196:21: cannot use v (type identity.Interface) as type *identity.Interface in argument to ec._Identity:
    *identity.Interface is pointer to interface, not interface
graphql/graph/gen_graph.go:15164:21: cannot use v (type identity.Interface) as type *identity.Interface in argument to ec._Identity:
    *identity.Interface is pointer to interface, not interface

identity.Interface is obviously an interface.

The generated code leading to the error is:

func (ec *executionContext) marshalNIdentity2githubᚗcomᚋMichaelMureᚋgitᚑbugᚋidentityᚐInterface(ctx context.Context, sel ast.SelectionSet, v identity.Interface) graphql.Marshaler {
	if v == nil {
		if !ec.HasError(graphql.GetResolverContext(ctx)) {
			ec.Errorf(ctx, "must not be null")
		}
		return graphql.Null
	}
	return ec._Identity(ctx, sel, v)
}

Minimal graphql.schema and models to reproduce

You can have a look on my full project. The directive to generate is at https://github.com/MichaelMure/git-bug/blob/master/graphql/handler.go#L1

Let me know if you need something more minimal.

[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

[MichaelMure]

Hi, I just checked, this is still a problem with both v0.10.2 and master.