1 files changed, 20 insertions, 0 deletions
diff --git a/devtools/client/framework/source-map-util.js b/devtools/client/framework/source-map-util.js
new file mode 100644
index 000000000..0bb25b3df
--- /dev/null
+++ b/devtools/client/framework/source-map-util.js
@@ -0,0 +1,20 @@
+function originalToGeneratedId(originalId) {
+  const match = originalId.match(/(.*)\/originalSource/);
+  return match ? match[1] : "";
+}
+
+function generatedToOriginalId(generatedId, url) {
+  return generatedId + "/originalSource-" + url.replace(/ \//, '-');
+}
+
+function isOriginalId(id) {
+  return !!id.match(/\/originalSource/);
+}
+
+function isGeneratedId(id) {
+  return !isOriginalId(id);
+}
+
+module.exports = {
+  originalToGeneratedId, generatedToOriginalId, isOriginalId, isGeneratedId
+};