Strip any non alphanum characters from interfaces names in modelgen

example/federation/reviews/graph/model/models.go

@@ -4,7 +4,7 @@ type Product struct {
 	Upc string `json:"upc"`
 }
 
-func (Product) Is_Entity() {}
+func (Product) IsEntity() {}
 
 type Review struct {
 	Body    string
@@ -16,4 +16,4 @@ type User struct {
 	ID string `json:"id"`
 }
 
-func (User) Is_Entity() {}
+func (User) IsEntity() {}

plugin/federation/fedruntime/runtime.go

@@ -9,5 +9,5 @@ type Service struct {
 
 // Everything with a @key implements this
 type Entity interface {
-	Is_Entity()
+	IsEntity()
 }

plugin/modelgen/models.go

@@ -3,6 +3,7 @@ package modelgen
 import (
 	"fmt"
 	"go/types"
+	"regexp"
 	"sort"
 
 	"github.com/99designs/gqlgen/codegen/config"
@@ -71,6 +72,8 @@ func (m *Plugin) Name() string {
 	return "modelgen"
 }
 
+var nonAlphaNum = regexp.MustCompile("[^a-zA-Z0-9]+")
+
 func (m *Plugin) MutateConfig(cfg *config.Config) error {
 	binder := cfg.NewBinder()
 
@@ -99,8 +102,9 @@ func (m *Plugin) MutateConfig(cfg *config.Config) error {
 				Description: schemaType.Description,
 				Name:        schemaType.Name,
 			}
+
 			for _, implementor := range cfg.Schema.GetImplements(schemaType) {
-				it.Implements = append(it.Implements, implementor.Name)
+				it.Implements = append(it.Implements, nonAlphaNum.ReplaceAllLiteralString(implementor.Name, ""))
 			}
 
 			for _, field := range schemaType.Fields {