feat: generate ast.Type "enum"

pkg/ast/ast.go

@@ -14,6 +14,7 @@ var TypeToVisitorNameMap = map[string]string{
 type Vertex interface {
 	Accept(v Visitor)
 	GetPosition() *position.Position
+	GetType() Type
 }
 
 type Visitor interface {

pkg/ast/node_funcs_gen.go

@@ -28,6 +28,16 @@ var fileTempl = template.Must(
 package ast
 
 import "github.com/VKCOM/php-parser/pkg/position"
+
+type Type int
+
+const (
+    TypeNone Type = iota
+    {{- range $i, $typ := .Types }}
+    Type{{ $typ.Name }}
+    {{- end }}
+    TypeCount
+)
 {{range $typ := .Types}}
 var _ Vertex = &{{$typ.Name}}{}
 
@@ -38,6 +48,10 @@ func (n *{{$typ.Name}}) Accept(v Visitor) {
 func (n *{{$typ.Name}}) GetPosition() *position.Position {
     return n.Position
 }
+
+func (n *{{$typ.Name}}) GetType() Type {
+    return Type{{$typ.Name}}
+}
 {{end}}`),
 )