Add test for reference arguments

These should be reported as well, because they're shared references even
though they're passed as arguments.

This currently reports the variable name as "aStruct", will need to look
into how to correct that.

2 files changed, 13 insertions, 0 deletions

diff --git a/gocapturedrefrace.go b/gocapturedrefrace.go
index f3e2e81..517cf8e 100644
--- a/gocapturedrefrace.go
+++ b/gocapturedrefrace.go
@@ -56,6 +56,7 @@ func checkClosure(pass *analysis.Pass, funcLit *ast.FuncLit) {
 		formalParams = append(formalParams, field.Names[0].Obj)
 	}
 	fmt.Printf("%#v\n", formalParams)
+	// TODO: Ensure argument types are not references
 
 	// TODO: Build a list of variables created in the closure
 	assignments := assignmentsInFunc(pass, funcLit)
diff --git a/testdata/simple.go b/testdata/simple.go
index 0a2f0af..d01a95e 100644
--- a/testdata/simple.go
+++ b/testdata/simple.go
@@ -23,3 +23,15 @@ func main() {
 		strings.Repeat(str, 3)
 	}(copied)
 }
+
+func argumentReference() {
+	type aStruct struct{
+		field int
+	}
+
+	s := aStruct{field: 0}
+
+	go func(s *aStruct) {
+		s.field += 1
+	}(&s)
+}