diff --git a/pkg/service/class.go b/pkg/service/class.go
index 634370c..4211007 100644
--- a/pkg/service/class.go
+++ b/pkg/service/class.go
@@ -53,7 +53,11 @@ func (c *Class) methodDeclarationsToString() (code string) {
 }
 func (c *Class) methodDeclarationToString(m *ast.FuncDecl) (code string) {
 	code += "  "
-	code += "void " + m.Name.String() + "();"
+	code += handleFuncDeclType(m.Type)
+	code += " "
+	code += m.Name.String() + "("
+	code += handleFuncDeclParams(m.Type)
+	code += ");"
 	code += "\n"
 	return
 }
@@ -67,10 +71,11 @@ func (c *Class) methodImplementationsToString() (code string) {
 }
 
 func (c *Class) methodImplementationToString(m *ast.FuncDecl) (code string) {
-	code += "void "
+	code += handleFuncDeclType(m.Type)
+	code += " "
 	code += c.Name + "::"
 	code += m.Name.String() + "("
-
+	code += handleFuncDeclParams(m.Type)
 	code += ") {"
 	if len(m.Recv.List) > 0 {
 		n := m.Recv.List[0].Names
diff --git a/pkg/service/expr.go b/pkg/service/expr.go
index dee0b64..a061aea 100644
--- a/pkg/service/expr.go
+++ b/pkg/service/expr.go
@@ -75,6 +75,8 @@ func handleIdentExpr(expr ast.Expr) string {
 		code += "unsigned long"
 	case "uint64":
 		code += "unsigned long long"
+	case "float64":
+		code += "double"
 	case "string":
 		code += "std::string"
 	default:
diff --git a/pkg/service/features/app.feature b/pkg/service/features/app.feature
index 02c61ce..58371bf 100644
--- a/pkg/service/features/app.feature
+++ b/pkg/service/features/app.feature
@@ -131,6 +131,47 @@ this->doSomethingElse();
 }
 void device::doSomethingElse() {
 }
+```
+
+  Сценарий: Структура с вызовом методов со входящими и выходящими параметрами
+    * Исходник:
+```
+package test
+
+type device struct {
+  a int
+}
+
+func (d *device) doSomething(i int, x string) {
+    d.doSomethingElse(1, 0.5)
+    d.doSomethingElse(i, 0.6)
+}
+func (d *device) doSomethingElse(i int, f float64) int {
+    return 1
+}
+func (d *device) doSomethingBool(i int, f float64) bool {
+    return true
+}
+```
+    * Результат:
+```
+class device {
+public:
+  int a;
+  void doSomething(int i,std::string x);
+  int doSomethingElse(int i,double f);
+  bool doSomethingBool(int i,double f);
+};
+void device::doSomething(int i,std::string x) {
+this->doSomethingElse(1,0.5);
+this->doSomethingElse(i,0.6);
+}
+int device::doSomethingElse(int i,double f) {
+return 1;
+}
+bool device::doSomethingBool(int i,double f) {
+return true;
+}
 ```
 
   Сценарий: Структура с изменением свойства