script_bridge.rs, index.js

frontend/src/main.rs

@@ -2,6 +2,7 @@ use std::rc::Rc;
 use zoon::*;
 
 mod platform;
+mod script_bridge;
 
 mod controls_panel;
 use controls_panel::ControlsPanel;

frontend/src/script_bridge.rs

@@ -0,0 +1,21 @@
+use zoon::{*, println};
+
+#[wasm_bindgen(inline_js = r#"export function strict_eval(code) { return eval?.(`"use strict"; ${code};`) }"#)]
+extern "C" {
+    #[wasm_bindgen(catch)]
+    pub fn strict_eval(code: &str) -> Result<JsValue, JsValue>;
+}
+
+#[wasm_bindgen]
+pub struct FW;
+
+#[wasm_bindgen]
+impl FW {
+    pub fn do_something() {
+        println!("Command result: {:#?}", strict_eval("FW.do_something_else();"));
+    }
+
+    pub fn do_something_else() {
+        println!("ELSE!");
+    }
+}