Сценарий: Наследование

pkg/service/class.go

@@ -19,9 +19,10 @@ var (
 )
 
 type class struct {
-	name    string
-	Struct  *ast.StructType
-	methods []*ast.FuncDecl
+	name          string
+	baseInterface string
+	Struct        *ast.StructType
+	methods       []*ast.FuncDecl
 }
 
 func NewClass(name string) *class {
@@ -33,6 +34,7 @@ func (c *class) Name() string {
 }
 
 func (c *class) String() (code string) {
+	c.checkForBaseInterface()
 	code += c.classDefinitionToString()
 	return
 }
@@ -42,7 +44,13 @@ func (c *class) MethodsString() (code string) {
 }
 
 func (c *class) classDefinitionToString() (code string) {
-	code = "class " + c.name + " {"
+	code += "class " + c.name
+
+	if len(c.baseInterface) > 0 {
+		code += ": public " + c.baseInterface
+	}
+
+	code += " {"
 	code += "public:\n"
 
 	code += c.structToString()
@@ -54,6 +62,27 @@ func (c *class) classDefinitionToString() (code string) {
 	code += "};\n"
 	return
 }
+func (c *class) checkForBaseInterface() {
+	if c.Struct.Fields.NumFields() == 0 {
+		return
+	}
+	if len(c.Struct.Fields.List[0].Names) == 0 {
+		return
+	}
+
+	n := c.Struct.Fields.List[0].Names[0]
+	if n.Name != "_baseInterface" {
+		return
+	}
+
+	i, ok := c.Struct.Fields.List[0].Type.(*ast.Ident)
+	if !ok {
+		return
+	}
+
+	c.baseInterface = i.Name
+	return
+}
 func (c *class) structToString() (code string) {
 	code += handleExpr(c.Struct)
 	code += "\n"

pkg/service/expr.go

@@ -6,9 +6,8 @@ import (
 	"strings"
 )
 
-func handleExpr(expr ast.Expr) string {
+func handleExpr(expr ast.Expr) (code string) {
 	// spew.Dump(expr)
-	code := ""
 	switch e := expr.(type) {
 	case *ast.BasicLit:
 		code += handleBasicLit(e)
@@ -31,7 +30,7 @@ func handleExpr(expr ast.Expr) string {
 	case *ast.ArrayType:
 		code += handleArray(e)
 	}
-	return code
+	return
 }
 
 func handleBasicLit(bl *ast.BasicLit) string {

pkg/service/features/app.feature

@@ -50,6 +50,29 @@ public:
   virtual void Add(int) = 0;
   virtual void Add2(int,double) = 0;
 };
+```
+
+  Сценарий: Наследование
+    * Исходник:
+```
+package test
+
+type Device interface {
+}
+
+type DeviceClass struct {
+  _baseInterface Device
+}
+```
+    * Результат:
+```
+class Device {
+public:
+};
+class DeviceClass: public Device {
+public:
+  Device* _baseInterface;
+};
 ```
 
   Сценарий: Класс: свойство типа интерфейс - указатель