1 files changed, 23 insertions, 0 deletions
diff --git a/devtools/client/debugger/src/actions/pause/fetchFrames.js b/devtools/client/debugger/src/actions/pause/fetchFrames.js
new file mode 100644
index 0000000000..42295ae026
--- /dev/null
+++ b/devtools/client/debugger/src/actions/pause/fetchFrames.js
@@ -0,0 +1,23 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at <http://mozilla.org/MPL/2.0/>. */
+
+import { isValidThreadContext } from "../../utils/context";
+
+export function fetchFrames(cx) {
+  return async function ({ dispatch, client, getState }) {
+    const { thread } = cx;
+    let frames;
+    try {
+      frames = await client.getFrames(thread);
+    } catch (e) {
+      // getFrames will fail if the thread has resumed. In this case the thread
+      // should no longer be valid and the frames we would have fetched would be
+      // discarded anyways.
+      if (isValidThreadContext(getState(), cx)) {
+        throw e;
+      }
+    }
+    dispatch({ type: "FETCHED_FRAMES", thread, frames, cx });
+  };
+}