feat: init commit, wait wit-bindgen supports host wasmtime

.gitignore

@@ -1,3 +1,4 @@
+.idea/
 wit-bindgen/
 
 # ---> macOS

interface.wit

@@ -0,0 +1,13 @@
+interface imports {
+  thunk: func()
+}
+
+interface exports {
+  thunk: func()
+}
+
+world smoke {
+  import imports: imports
+  default export exports
+}
+

javascript-engine/Cargo.toml

@@ -9,5 +9,9 @@ edition = "2021"
 crate-type = ['cdylib']
 
 [dependencies]
+wit-bindgen-core = { path = '../wit-bindgen/crates/bindgen-core' }
+wit-bindgen-guest-rust = { path = '../wit-bindgen/crates/guest-rust' }
 boa_engine = "0.16.0"
 getrandom = { version = "0.2.8", features = ["js"] }
+serde = { version = "1.0", features = ["derive"] }
+serde_json = "1.0"

javascript-engine/src/lib.rs

@@ -0,0 +1,11 @@
+wit_bindgen_guest_rust::generate!("../interface.wit");
+
+struct Exports;
+
+export_smoke!(Exports);
+
+impl smoke::Smoke for Exports {
+    fn thunk() {
+        imports::thunk();
+    }
+}