From 80d522103ad6341cd26ecfc4c906df7a891943d6 Mon Sep 17 00:00:00 2001
From: Jakob Gillich <jakob@gillich.me>
Date: Fri, 25 Nov 2022 22:54:32 +0100
Subject: [PATCH] feat: support json tags in embedded structs (#1396)

---
 field_parser.go               |  6 +++++-
 parser.go                     | 34 +++++++++++++++++-----------------
 testdata/simple/expected.json | 34 +++++++++++++++++++++-------------
 3 files changed, 43 insertions(+), 31 deletions(-)

diff --git a/field_parser.go b/field_parser.go
index 1a5cc6eaf..beee28ac3 100644
--- a/field_parser.go
+++ b/field_parser.go
@@ -43,7 +43,7 @@ func newTagBaseFieldParser(p *Parser, field *ast.Field) FieldParser {
 
 func (ps *tagBaseFieldParser) ShouldSkip() bool {
 	// Skip non-exported fields.
-	if !ast.IsExported(ps.field.Names[0].Name) {
+	if ps.field.Names != nil && !ast.IsExported(ps.field.Names[0].Name) {
 		return true
 	}
 
@@ -76,6 +76,10 @@ func (ps *tagBaseFieldParser) FieldName() (string, error) {
 		}
 	}
 
+	if ps.field.Names == nil {
+		return "", nil
+	}
+
 	switch ps.p.PropNamingStrategy {
 	case SnakeCase:
 		return toSnakeCase(ps.field.Names[0].Name), nil
diff --git a/parser.go b/parser.go
index 088ec5f09..e18e2e36d 100644
--- a/parser.go
+++ b/parser.go
@@ -1230,14 +1230,25 @@ func (parser *Parser) parseStruct(file *ast.File, fields *ast.FieldList) (*spec.
 }
 
 func (parser *Parser) parseStructField(file *ast.File, field *ast.Field) (map[string]spec.Schema, []string, error) {
-	if field.Names == nil {
-		if field.Tag != nil {
-			skip, ok := reflect.StructTag(strings.ReplaceAll(field.Tag.Value, "`", "")).Lookup("swaggerignore")
-			if ok && strings.EqualFold(skip, "true") {
-				return nil, nil, nil
-			}
+	if field.Tag != nil {
+		skip, ok := reflect.StructTag(strings.ReplaceAll(field.Tag.Value, "`", "")).Lookup("swaggerignore")
+		if ok && strings.EqualFold(skip, "true") {
+			return nil, nil, nil
 		}
+	}
 
+	ps := parser.fieldParserFactory(parser, field)
+
+	if ps.ShouldSkip() {
+		return nil, nil, nil
+	}
+
+	fieldName, err := ps.FieldName()
+	if err != nil {
+		return nil, nil, err
+	}
+
+	if fieldName == "" {
 		typeName, err := getFieldType(file, field.Type)
 		if err != nil {
 			return nil, nil, err
@@ -1260,20 +1271,9 @@ func (parser *Parser) parseStructField(file *ast.File, field *ast.Field) (map[st
 
 			return properties, schema.SchemaProps.Required, nil
 		}
-
 		// for alias type of non-struct types ,such as array,map, etc. ignore field tag.
 		return map[string]spec.Schema{typeName: *schema}, nil, nil
-	}
-
-	ps := parser.fieldParserFactory(parser, field)
-
-	if ps.ShouldSkip() {
-		return nil, nil, nil
-	}
 
-	fieldName, err := ps.FieldName()
-	if err != nil {
-		return nil, nil, err
 	}
 
 	schema, err := ps.CustomSchema()
diff --git a/testdata/simple/expected.json b/testdata/simple/expected.json
index 0904d3ffa..24ce9f696 100644
--- a/testdata/simple/expected.json
+++ b/testdata/simple/expected.json
@@ -215,17 +215,17 @@
               }
             }
           },
-          "404": {
-            "description": "Can not find ID",
-            "schema": {
-              "$ref": "#/definitions/web.APIError"
-            }
-          },
           "403": {
             "description": "cross",
             "schema": {
               "$ref": "#/definitions/cross.Cross"
             }
+          },
+          "404": {
+            "description": "Can not find ID",
+            "schema": {
+              "$ref": "#/definitions/web.APIError"
+            }
           }
         }
       }
@@ -722,12 +722,6 @@
         "Data": {
           "type": "integer"
         },
-        "Err": {
-          "type": "integer"
-        },
-        "Status": {
-          "type": "boolean"
-        },
         "cross": {
           "$ref": "#/definitions/cross.Cross"
         },
@@ -736,6 +730,20 @@
           "items": {
             "$ref": "#/definitions/cross.Cross"
           }
+        },
+        "rev_value_base": {
+          "$ref": "#/definitions/web.RevValueBase"
+        }
+      }
+    },
+    "web.RevValueBase": {
+      "type": "object",
+      "properties": {
+        "Err": {
+          "type": "integer"
+        },
+        "Status": {
+          "type": "boolean"
         }
       }
     },
@@ -805,4 +813,4 @@
       }
     }
   }
-}
+}
\ No newline at end of file