From 8f8bbf5f88e025bffeb1abe61f572aaa032f9560 Mon Sep 17 00:00:00 2001
From: chavacava <salvadorcavadini+github@gmail.com>
Date: Thu, 31 Mar 2022 17:40:26 +0200
Subject: [PATCH] fix issue 664 (#665)

---
 rule/nested-structs.go     | 16 +++++++++++++---
 testdata/nested-structs.go |  5 +++++
 2 files changed, 18 insertions(+), 3 deletions(-)

diff --git a/rule/nested-structs.go b/rule/nested-structs.go
index 1068ef824..a9403bacc 100644
--- a/rule/nested-structs.go
+++ b/rule/nested-structs.go
@@ -47,15 +47,25 @@ func (l *lintNestedStructs) Visit(n ast.Node) ast.Visitor {
 		}
 		return nil
 	case *ast.Field:
-		if _, ok := v.Type.(*ast.StructType); ok {
+		filter := func(n ast.Node) bool {
+			switch n.(type) {
+			case *ast.StructType:
+				return true
+			default:
+				return false
+			}
+		}
+		structs := pick(v, filter, nil)
+		for _, s := range structs {
 			l.onFailure(lint.Failure{
 				Failure:    "no nested structs are allowed",
 				Category:   "style",
-				Node:       v,
+				Node:       s,
 				Confidence: 1,
 			})
-			break
 		}
+		return nil // no need to visit (again) the field
 	}
+
 	return l
 }
diff --git a/testdata/nested-structs.go b/testdata/nested-structs.go
index 3c6a97416..7e5abafaf 100644
--- a/testdata/nested-structs.go
+++ b/testdata/nested-structs.go
@@ -30,3 +30,8 @@ func fred() interface{} {
 
 	return s
 }
+
+// issue 664
+type Bad struct {
+	Field []struct{} // MATCH /no nested structs are allowed/
+}