1 files changed, 48 insertions, 0 deletions
diff --git a/devtools/client/debugger/src/utils/pause/scopes/index.js b/devtools/client/debugger/src/utils/pause/scopes/index.js
new file mode 100644
index 0000000000..2f24a41640
--- /dev/null
+++ b/devtools/client/debugger/src/utils/pause/scopes/index.js
@@ -0,0 +1,48 @@
+/* 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 { getScope, mergeScopes } from "./getScope";
+
+export function getScopes(why, selectedFrame, frameScopes) {
+  if (!why || !selectedFrame) {
+    return null;
+  }
+
+  if (!frameScopes) {
+    return null;
+  }
+
+  const scopes = [];
+
+  let scope = frameScopes;
+  let scopeIndex = 1;
+  let prev = null,
+    prevItem = null;
+
+  while (scope) {
+    let scopeItem = getScope(
+      scope,
+      selectedFrame,
+      frameScopes,
+      why,
+      scopeIndex
+    );
+
+    if (scopeItem) {
+      const mergedItem =
+        prev && prevItem ? mergeScopes(prev, scope, prevItem, scopeItem) : null;
+      if (mergedItem) {
+        scopeItem = mergedItem;
+        scopes.pop();
+      }
+      scopes.push(scopeItem);
+    }
+    prev = scope;
+    prevItem = scopeItem;
+    scopeIndex++;
+    scope = scope.parent;
+  }
+
+  return scopes;
+}