Find function signature return value names

And add a test function that does have named returned values.

2 files changed, 22 insertions, 2 deletions

diff --git a/defererr.go b/defererr.go
index 87697a3..c7816e9 100644
--- a/defererr.go
+++ b/defererr.go
@@ -37,7 +37,12 @@ func run(pass *analysis.Pass) (interface{}, error) {
 
 				funcReturnsError := false
 				for _, returnVal := range funcDecl.Type.Results.List {
-					fmt.Printf("returnVal: %#v\n", returnVal.Type)
+					fmt.Printf("returnVal: %#v\n", returnVal)
+					for _, ident := range returnVal.Names {
+						fmt.Printf("returnVal name: %#v\n", ident)
+					}
+
+					fmt.Printf("returnVal Type: %#v\n", returnVal.Type)
 
 					returnIdent, ok := returnVal.Type.(*ast.Ident)
 					if !ok {
@@ -167,6 +172,8 @@ func run(pass *analysis.Pass) (interface{}, error) {
 				// 	fmt.Printf("returnVal: %#v\n", returnVal)
 				// }
 
+				fmt.Println()
+
 				return true
 			},
 		)
diff --git a/testdata/signature.go b/testdata/signature.go
index 17cfd0b..6fc15fc 100644
--- a/testdata/signature.go
+++ b/testdata/signature.go
@@ -2,7 +2,7 @@ package main
 
 import "errors"
 
-func declareErrInSignature() error { // want "return signature should be '(err error)'"
+func shouldDeclareErrInSignature() error { // want "return signature should be '(err error)'"
 	var err error // Should use variable declared in signature
 
 	err = nil
@@ -16,3 +16,16 @@ func declareErrInSignature() error { // want "return signature should be '(err e
 
 	return nil // want "does not return 'err'"
 }
+
+func doesDeclareErrInSignature() (err error) {
+	err = nil
+	if err != nil {
+		return err
+	}
+
+	defer func() {
+		err = errors.New("defer error")
+	}()
+
+	return nil // want "does not return 'err'"
+}