feat(rustadapter): using rifgen and flapigen-rs to generate interface

rust-adapter/src/_old.rs

@@ -0,0 +1,59 @@
+#[no_mangle]
+pub extern "system" fn Java_net_mbess_popequer_Native_add(
+    _env: JNIEnv,
+    _class: JClass,
+    a: i32,
+    b: i32
+) -> i32 {
+    a + b
+}
+
+#[no_mangle]
+pub extern "system" fn Java_net_mbess_popequer_Native_mul(
+    _env: JNIEnv,
+    _class: JClass,
+    a: i32,
+    b: i32
+) -> i32 {
+    a * b
+}
+
+#[no_mangle]
+pub extern "system" fn Java_net_mbess_popequer_Native_fsInfo<'local>(
+    mut env: JNIEnv<'local>,
+    _class: JClass<'local>,
+    jinput: JString
+) -> jstring {
+    let input: String = env.get_string(&jinput).unwrap().into();
+    let paths = std::fs::read_dir(format!("/{}", input));
+    dbg!(&input);
+    let mut out = String::from("");
+    for path in paths.unwrap() {
+        out.push_str(&format!("{:?}\n", path.unwrap().path()))
+    }
+    let output = env.new_string(format!("FS test {:?}", out))
+        .expect("Couldn't create java string!");
+
+    output.into_raw()
+}
+
+
+#[no_mangle]
+pub extern "system" fn Java_net_mbess_popequer_Native_entryPoint<'local>(
+    mut env: JNIEnv<'local>,
+    _class: JClass<'local>,
+    jinput: JString
+) -> jstring {
+    let input: String = env.get_string(&jinput).unwrap().into();
+    let paths = std::fs::read_dir(format!("/{}", input));
+    dbg!(&input);
+    let mut out = String::from("");
+    for path in paths.unwrap() {
+        out.push_str(&format!("{:?}\n", path.unwrap().path()))
+    }
+    let output = env.new_string(format!("FS test {:?}", out))
+        .expect("Couldn't create java string!");
+
+    output.into_raw()
+}
+

rust-adapter/src/java_glue.rs

@@ -0,0 +1,15 @@
+#![allow(
+    clippy::enum_variant_names,
+    clippy::unused_unit,
+    clippy::let_and_return,
+    clippy::not_unsafe_ptr_arg_deref,
+    clippy::cast_lossless,
+    clippy::blacklisted_name,
+    clippy::too_many_arguments,
+    clippy::trivially_copy_pass_by_ref,
+    clippy::let_unit_value,
+    clippy::clone_on_copy
+)]
+
+
+include!(concat!(env!("OUT_DIR"), "/java_glue.rs"));

rust-adapter/src/lib.rs

@@ -0,0 +1,33 @@
+mod java_glue;
+
+pub use crate::java_glue::*;
+
+use rifgen::rifgen_attr::*;
+
+struct Foo {
+    data: i32
+}
+
+impl Foo {
+    #[generate_interface(constructor)]
+    fn new(val: i32) -> Foo {
+        Foo{data: val}
+    }
+
+    #[generate_interface]
+    fn f(&self, a: i32, b: i32) -> i32 {
+        self.data + a + b
+    }
+
+    #[generate_interface]
+    fn get_data(&self) -> i32 {
+        self.data
+    }
+
+    ///Custom doc comment
+    #[generate_interface]
+    fn set_field(&mut self, v: i32) {
+        self.data = v;
+    }
+}
+