adding rust to the project

src/rust/Cargo.toml

@@ -0,0 +1,24 @@
+[package]
+name = "qml-minimal"
+version = "0.1.0"
+edition = "2021"
+authors = [
+  "Chris Cochrun <chris@cochrun.xyz>"
+]
+license = "MIT OR Apache-2.0"
+
+# This will instruct Cargo to create a static
+# library which CMake can link against
+[lib]
+crate-type = ["staticlib"]
+
+[dependencies]
+cxx = "1.0.83"
+cxx-qt = "0.4.1"
+cxx-qt-lib = "0.4.1"
+
+# cxx-qt-build generates C++ code from the `#[cxx_qt::bridge]` module
+# and compiles it together with the Rust static library
+[build-dependencies]
+cxx-qt-build = "0.4.1"
+

src/rust/build.rs

@@ -0,0 +1,5 @@
+use cxx_qt_build::CxxQtBuilder;
+
+fn main() {
+    CxxQtBuilder::new().file("src/cxxqt_object.rs").build();
+}

src/rust/src/cxxqt_object.rs

@@ -0,0 +1,41 @@
+#[cxx_qt::bridge]
+mod my_object {
+
+    unsafe extern "C++" {
+        include!("cxx-qt-lib/qstring.h");
+        type QString = cxx_qt_lib::QString;
+    }
+
+    #[cxx_qt::qobject]
+    pub struct MyObject {
+        #[qproperty]
+        number: i32,
+        #[qproperty]
+        string: QString,
+    }
+
+    impl Default for MyObject {
+        fn default() -> Self {
+            Self {
+                number: 0,
+                string: QString::from(""),
+            }
+        }
+    }
+
+    impl qobject::MyObject {
+        #[qinvokable]
+        pub fn increment_number(self: Pin<&mut Self>) {
+            let previous = *self.as_ref().number();
+            self.set_number(previous + 1);
+        }
+
+        #[qinvokable]
+        pub fn say_hi(&self, string: &QString, number: i32) {
+            println!(
+                "Hi from Rust! String is '{}' and number is {}",
+                string, number
+            );
+        }
+    }
+}

src/rust/src/lib.rs

@@ -0,0 +1,16 @@
+pub fn add(left: usize, right: usize) -> usize {
+    left + right
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn it_works() {
+        let result = add(2, 2);
+        assert_eq!(result, 4);
+    }
+}
+
+mod cxxqt_object;