From ee6add4bddd7ee05e31a37815f281c320eb44e26 Mon Sep 17 00:00:00 2001
From: Steve Coffman <StevenACoffman@users.noreply.github.com>
Date: Mon, 19 Jun 2023 14:00:22 -0400
Subject: [PATCH] Refactor TypeIdentifier to avoid circular imports (#2682)

Signed-off-by: Steve Coffman <steve@khanacademy.org>
---
 codegen/config/binder.go       | 42 ++++++++++++++++++++++++++++++++--
 codegen/templates/templates.go | 42 ++--------------------------------
 2 files changed, 42 insertions(+), 42 deletions(-)

diff --git a/codegen/config/binder.go b/codegen/config/binder.go
index e479417aa5..0483afdbdf 100644
--- a/codegen/config/binder.go
+++ b/codegen/config/binder.go
@@ -5,10 +5,10 @@ import (
 	"fmt"
 	"go/token"
 	"go/types"
+	"strings"
 
 	"golang.org/x/tools/go/packages"
 
-	"github.com/99designs/gqlgen/codegen/templates"
 	"github.com/99designs/gqlgen/internal/code"
 	"github.com/vektah/gqlparser/v2/ast"
 )
@@ -285,7 +285,7 @@ func (ref *TypeReference) UniquenessKey() string {
 		// Fix for #896
 		elemNullability = "ᚄ"
 	}
-	return nullability + ref.Definition.Name + "2" + templates.TypeIdentifier(ref.GO) + elemNullability
+	return nullability + ref.Definition.Name + "2" + TypeIdentifier(ref.GO) + elemNullability
 }
 
 func (ref *TypeReference) MarshalFunc() string {
@@ -540,3 +540,41 @@ func basicUnderlying(it types.Type) *types.Basic {
 
 	return nil
 }
+
+var pkgReplacer = strings.NewReplacer(
+	"/", "ᚋ",
+	".", "ᚗ",
+	"-", "ᚑ",
+	"~", "א",
+)
+
+func TypeIdentifier(t types.Type) string {
+	res := ""
+	for {
+		switch it := t.(type) {
+		case *types.Pointer:
+			t.Underlying()
+			res += "ᚖ"
+			t = it.Elem()
+		case *types.Slice:
+			res += "ᚕ"
+			t = it.Elem()
+		case *types.Named:
+			res += pkgReplacer.Replace(it.Obj().Pkg().Path())
+			res += "ᚐ"
+			res += it.Obj().Name()
+			return res
+		case *types.Basic:
+			res += it.Name()
+			return res
+		case *types.Map:
+			res += "map"
+			return res
+		case *types.Interface:
+			res += "interface"
+			return res
+		default:
+			panic(fmt.Errorf("unexpected type %T", it))
+		}
+	}
+}
diff --git a/codegen/templates/templates.go b/codegen/templates/templates.go
index a3b3be0a17..6d536d3c17 100644
--- a/codegen/templates/templates.go
+++ b/codegen/templates/templates.go
@@ -17,8 +17,8 @@ import (
 	"text/template"
 	"unicode"
 
+	"github.com/99designs/gqlgen/codegen/config"
 	"github.com/99designs/gqlgen/internal/code"
-
 	"github.com/99designs/gqlgen/internal/imports"
 )
 
@@ -202,7 +202,7 @@ func Funcs() template.FuncMap {
 		"rawQuote":           rawQuote,
 		"dump":               Dump,
 		"ref":                ref,
-		"ts":                 TypeIdentifier,
+		"ts":                 config.TypeIdentifier,
 		"call":               Call,
 		"prefixLines":        prefixLines,
 		"notNil":             notNil,
@@ -248,44 +248,6 @@ func ref(p types.Type) string {
 	return CurrentImports.LookupType(p)
 }
 
-var pkgReplacer = strings.NewReplacer(
-	"/", "ᚋ",
-	".", "ᚗ",
-	"-", "ᚑ",
-	"~", "א",
-)
-
-func TypeIdentifier(t types.Type) string {
-	res := ""
-	for {
-		switch it := t.(type) {
-		case *types.Pointer:
-			t.Underlying()
-			res += "ᚖ"
-			t = it.Elem()
-		case *types.Slice:
-			res += "ᚕ"
-			t = it.Elem()
-		case *types.Named:
-			res += pkgReplacer.Replace(it.Obj().Pkg().Path())
-			res += "ᚐ"
-			res += it.Obj().Name()
-			return res
-		case *types.Basic:
-			res += it.Name()
-			return res
-		case *types.Map:
-			res += "map"
-			return res
-		case *types.Interface:
-			res += "interface"
-			return res
-		default:
-			panic(fmt.Errorf("unexpected type %T", it))
-		}
-	}
-}
-
 func Call(p *types.Func) string {
 	pkg := CurrentImports.Lookup(p.Pkg().Path())