From c86ee742a2522a169bfe40890b946c646aeac1cf Mon Sep 17 00:00:00 2001
From: Nayeem Rahman <nayeemrmn99@gmail.com>
Date: Fri, 9 Apr 2021 16:55:33 +0100
Subject: fix: async op error stacktraces (#10080)

Co-authored-by: Aaron O'Mullan <aaron.omullan@gmail.com>
---
 core/ops_json.rs | 48 ++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 48 insertions(+)

(limited to 'core/ops_json.rs')

diff --git a/core/ops_json.rs b/core/ops_json.rs
index 21c6b219f..0efd44a90 100644
--- a/core/ops_json.rs
+++ b/core/ops_json.rs
@@ -108,3 +108,51 @@ where
     },
   )
 }
+
+#[cfg(test)]
+mod tests {
+  use super::*;
+
+  #[tokio::test]
+  async fn json_op_async_stack_trace() {
+    let mut runtime = crate::JsRuntime::new(Default::default());
+
+    async fn op_throw(
+      _state: Rc<RefCell<OpState>>,
+      msg: Option<String>,
+      zero_copy: Option<ZeroCopyBuf>,
+    ) -> Result<(), AnyError> {
+      assert_eq!(msg.unwrap(), "hello");
+      assert!(zero_copy.is_none());
+      Err(crate::error::generic_error("foo"))
+    }
+
+    runtime.register_op("op_throw", json_op_async(op_throw));
+    runtime
+      .execute(
+        "<init>",
+        r#"
+    // First we initialize the ops cache. This maps op names to their id's.
+    Deno.core.ops();
+    // Register the error class.
+    Deno.core.registerErrorClass('Error', Error);
+
+    async function f1() {
+      await Deno.core.jsonOpAsync('op_throw', 'hello');
+    }
+
+    async function f2() {
+      await f1();
+    }
+
+    f2();
+    "#,
+      )
+      .unwrap();
+    let e = runtime.run_event_loop().await.unwrap_err().to_string();
+    println!("{}", e);
+    assert!(e.contains("Error: foo"));
+    assert!(e.contains("at async f1 (<init>:"));
+    assert!(e.contains("at async f2 (<init>:"));
+  }
+}
-- 
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