111

Author: lvan100

gen/generator/golang/type.go

@@ -147,15 +147,17 @@ const {{$c.Name}} {{$c.Type}} = {{$c.Value}}
 		}
 	{{- end}}
 
-	// Validate checks field values using generated validation expressions
-	func (x *{{$s.Name}}) Validate() error {
-		{{- range $f := $s.Fields}}
-			{{- if $f.Validate}}
-		{{$f.Validate}}
+	{{- if $s.ValidateCount}}
+		// Validate checks field values using generated validation expressions
+		func (x *{{$s.Name}}) Validate() error {
+			{{- range $f := $s.Fields}}
+				{{- if $f.Validate}}
+			{{$f.Validate}}
+				{{- end}}
 			{{- end}}
-		{{- end}}
-		return nil
-	}
+			return nil
+		}
+	{{- end}}
 
 	func (x *{{$s.Name}}) String() string {
 		if x == nil {
@@ -344,6 +346,17 @@ func (t *Type) BindingCount() int {
 	return count
 }
 
+// ValidateCount returns the number of fields in the struct that have validation info
+func (t *Type) ValidateCount() int {
+	var count int
+	for _, f := range t.Fields {
+		if f.Validate != nil {
+			count++
+		}
+	}
+	return count
+}
+
 // convertTypes converts IDL struct types to Go struct types
 func convertTypes(ctx Context, doc tidl.Document) (_ []Type, err error) {
 	var ret []Type