a lot of setup and testing work for rust

src/rust/file_helper.rs

@@ -0,0 +1,45 @@
+#[cxx_qt::bridge]
+mod file_helper {
+    use cxx::{CxxString, CxxVector};
+    unsafe extern "C++" {
+        include!("cxx-qt-lib/qstring.h");
+        type QString = cxx_qt_lib::QString;
+        include!("cxx-qt-lib/qurl.h");
+        type QUrl = cxx_qt_lib::QUrl;
+        include!("cxx-qt-lib/qvariant.h");
+        type QVariant = cxx_qt_lib::QVariant;
+    }
+
+    #[derive(Clone)]
+    #[cxx_qt::qobject]
+    pub struct FileHelper {
+        #[qproperty]
+        name: QString,
+        #[qproperty]
+        file_path: QString,
+    }
+
+    impl Default for FileHelper {
+        fn default() -> Self {
+            Self {
+                name: QString::from(""),
+                file_path: QString::from(""),
+            }
+        }
+    }
+
+    impl qobject::FileHelper {
+        #[qinvokable]
+        pub fn save(self: Pin<&mut Self>, file: QUrl, _service_list: QVariant) -> bool {
+            println!("{}", file);
+            return true;
+        }
+
+        #[qinvokable]
+        pub fn load(self: Pin<&mut Self>, file: QUrl) -> Vec<String> {
+            println!("{}", file);
+            let vc = vec![String::new()];
+            return vc;
+        }
+    }
+}