1 files changed, 24 insertions, 0 deletions
diff --git a/devtools/client/debugger/src/utils/pause/mapScopes/positionCmp.js b/devtools/client/debugger/src/utils/pause/mapScopes/positionCmp.js
new file mode 100644
index 0000000000..5d53fb933e
--- /dev/null
+++ b/devtools/client/debugger/src/utils/pause/mapScopes/positionCmp.js
@@ -0,0 +1,24 @@
+/* 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 { locColumn } from "./locColumn";
+
+/**
+ * * === 0 - Positions are equal.
+ * * < 0 - first position before second position
+ * * > 0 - first position after second position
+ */
+export function positionCmp(p1, p2) {
+  if (p1.line === p2.line) {
+    const l1 = locColumn(p1);
+    const l2 = locColumn(p2);
+
+    if (l1 === l2) {
+      return 0;
+    }
+    return l1 < l2 ? -1 : 1;
+  }
+
+  return p1.line < p2.line ? -1 : 1;
+}