fix(noir_wasm): Update wasm ACIR serialization (#898)

* switch wasm acir serialization methods to use write and read instead of to_bytes and from_bytes

* add deprecated flag to acir_from_bytes and acir_to_bytes

crates/wasm/src/lib.rs

@@ -28,21 +28,45 @@ pub fn compile(src: String) -> JsValue {
     let compiled_program = noirc_driver::Driver::compile_file(path, language);
     <JsValue as JsValueSerdeExt>::from_serde(&compiled_program).unwrap()
 }
+
 // Deserializes bytes into ACIR structure
+#[deprecated(
+    note = "we have moved away from this serialization strategy. Call `acir_read_bytes` instead"
+)]
 #[wasm_bindgen]
 pub fn acir_from_bytes(bytes: Vec<u8>) -> JsValue {
     console_error_panic_hook::set_once();
     let circuit = Circuit::from_bytes(&bytes);
     <JsValue as JsValueSerdeExt>::from_serde(&circuit).unwrap()
 }
 
+#[deprecated(
+    note = "we have moved away from this serialization strategy. Call `acir_write_bytes` instead"
+)]
 #[wasm_bindgen]
 pub fn acir_to_bytes(acir: JsValue) -> Vec<u8> {
     console_error_panic_hook::set_once();
     let circuit: Circuit = JsValueSerdeExt::into_serde(&acir).unwrap();
     circuit.to_bytes()
 }
 
+// Deserializes bytes into ACIR structure
+#[wasm_bindgen]
+pub fn acir_read_bytes(bytes: Vec<u8>) -> JsValue {
+    console_error_panic_hook::set_once();
+    let circuit = Circuit::read(&*bytes).unwrap();
+    <JsValue as JsValueSerdeExt>::from_serde(&circuit).unwrap()
+}
+
+#[wasm_bindgen]
+pub fn acir_write_bytes(acir: JsValue) -> Vec<u8> {
+    console_error_panic_hook::set_once();
+    let circuit: Circuit = JsValueSerdeExt::into_serde(&acir).unwrap();
+    let mut bytes = Vec::new();
+    circuit.write(&mut bytes).unwrap();
+    bytes
+}
+
 #[wasm_bindgen]
 pub fn build_info() -> JsValue {
     console_error_panic_hook::set_once();