1 files changed, 32 insertions, 0 deletions
diff --git a/devtools/client/debugger/src/utils/pause/scopes/getVariables.js b/devtools/client/debugger/src/utils/pause/scopes/getVariables.js
new file mode 100644
index 0000000000..3346a99cdb
--- /dev/null
+++ b/devtools/client/debugger/src/utils/pause/scopes/getVariables.js
@@ -0,0 +1,32 @@
+/* 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/>. */
+
+// VarAndBindingsPair actually is [name: string, contents: BindingContents]
+
+// Scope's bindings field which holds variables and arguments
+
+// Create the tree nodes representing all the variables and arguments
+// for the bindings from a scope.
+export function getBindingVariables(bindings, parentName) {
+  if (!bindings) {
+    return [];
+  }
+
+  const nodes = [];
+  const addNode = (name, contents) =>
+    nodes.push({ name, contents, path: `${parentName}/${name}` });
+
+  for (const arg of bindings.arguments) {
+    // `arg` is an object which only has a single property whose name is the name of the
+    // argument. So here we can directly pick the first (and only) entry of `arg`
+    const [name, contents] = Object.entries(arg)[0];
+    addNode(name, contents);
+  }
+
+  for (const name in bindings.variables) {
+    addNode(name, bindings.variables[name]);
+  }
+
+  return nodes;
+}