feat(uml): init convert code

plugins/coco_struct_analysis/src/lib.rs

@@ -11,6 +11,7 @@ pub mod cmd_ctags;
 pub mod coco_struct;
 pub mod ctags_opt;
 pub mod ctags_parser;
+pub mod plantuml_render;
 pub mod struct_analysis;
 
 pub struct CocoStructAnalysis {}

plugins/coco_struct_analysis/src/plantuml_render.rs

@@ -0,0 +1,32 @@
+use crate::coco_struct::ClassInfo;
+
+pub trait PlantUml {
+    fn render(&self) -> String;
+}
+
+pub struct PlantUmlRender;
+
+impl PlantUmlRender {
+    pub fn render(_classes: Vec<ClassInfo>) -> String {
+        let rendered: Vec<String> = vec![];
+        let dep: Vec<String> = vec![];
+
+        format!(
+            "@startuml\n\n{}\n{}\n@enduml",
+            rendered.join("\n\n"),
+            dep.join("\n\n")
+        )
+    }
+}
+
+#[cfg(test)]
+mod tests {
+    use crate::plantuml_render::PlantUmlRender;
+
+    #[test]
+    fn should_render_empty() {
+        let classes = vec![];
+        let str = PlantUmlRender::render(classes);
+        assert_eq!("@startuml\n\n\n\n@enduml", str);
+    }
+}