1 files changed, 58 insertions, 0 deletions
diff --git a/devtools/client/debugger/src/utils/location.js b/devtools/client/debugger/src/utils/location.js
new file mode 100644
index 0000000000..093b9d7095
--- /dev/null
+++ b/devtools/client/debugger/src/utils/location.js
@@ -0,0 +1,58 @@
+/* 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 { getSelectedLocation } from "./selected-location";
+
+export function comparePosition(a, b) {
+  return a && b && a.line == b.line && a.column == b.column;
+}
+
+export function createLocation({
+  sourceId,
+  // Line 0 represents no specific line chosen for action
+  line = 0,
+  column,
+  sourceUrl = "",
+  sourceActorId = null,
+}) {
+  return {
+    sourceId,
+    line,
+    column,
+    sourceUrl,
+    sourceActorId,
+  };
+}
+
+export function sortSelectedLocations(locations, selectedSource) {
+  return Array.from(locations).sort((locationA, locationB) => {
+    const aSelected = getSelectedLocation(locationA, selectedSource);
+    const bSelected = getSelectedLocation(locationB, selectedSource);
+
+    // Order the locations by line number…
+    if (aSelected.line < bSelected.line) {
+      return -1;
+    }
+
+    if (aSelected.line > bSelected.line) {
+      return 1;
+    }
+
+    // … and if we have the same line, we want to return location with undefined columns
+    // first, and then order them by column
+    if (aSelected.column == bSelected.column) {
+      return 0;
+    }
+
+    if (aSelected.column === undefined) {
+      return -1;
+    }
+
+    if (bSelected.column === undefined) {
+      return 1;
+    }
+
+    return aSelected.column < bSelected.column ? -1 : 1;
+  });
+}