added rust backtrace as stacktrace to JSError

CHANGELOG.md

@@ -1,3 +1,7 @@
+# 0.13.4
+
+* added rust backtrace to errors generated in rust
+
 # 0.13.3
 
 * added some debug info to async promise await code

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "quickjs_runtime"
-version = "0.13.3"
+version = "0.13.4"
 authors = ["Andries Hiemstra <[email protected]>"]
 edition = "2021"
 description = "Wrapper API and utils for the QuickJS JavaScript engine with support for Promise, Modules, Async/await"

src/jsutils/mod.rs

@@ -3,6 +3,7 @@
 //! The facade classes are for use outside the worker thread, they are Send
 //!
 
+use backtrace::Backtrace;
 use std::fmt::{Debug, Display, Error, Formatter};
 
 pub mod helper_tasks;
@@ -71,10 +72,11 @@ impl JsError {
         Self::new_string(err.to_string())
     }
     pub fn new_string(err: String) -> Self {
+        let bt = Backtrace::new();
         JsError {
             name: "Error".to_string(),
             message: err,
-            stack: "".to_string(),
+            stack: format!("{bt:?}"),
         }
     }
     pub fn get_message(&self) -> &str {

src/values.rs

@@ -206,7 +206,8 @@ impl CachedJsPromiseRef {
 
     pub fn get_promise_result_sync(&self) -> Result<Result<JsValueFacade, JsValueFacade>, JsError> {
         let rx = self.get_promise_result_receiver();
-        rx.recv().map_err(|e| JsError::new_string(format!("{e}")))?
+        rx.recv()
+            .map_err(|e| JsError::new_string(format!("get_promise_result_sync/1: {e}")))?
     }
 
     pub fn get_promise_result_sync_timeout(
@@ -216,9 +217,10 @@ impl CachedJsPromiseRef {
         let rx = self.get_promise_result_receiver();
         let res = if let Some(timeout) = timeout {
             rx.recv_timeout(timeout)
-                .map_err(|e| JsError::new_string(format!("{e}")))
+                .map_err(|e| JsError::new_string(format!("get_promise_result_sync_timeout/1: {e}")))
         } else {
-            rx.recv().map_err(|e| JsError::new_string(format!("{e}")))
+            rx.recv()
+                .map_err(|e| JsError::new_string(format!("get_promise_result_sync_timeout/2: {e}")))
         };
         res?
     }