1 files changed, 38 insertions, 0 deletions
diff --git a/devtools/server/actors/utils/source-url.js b/devtools/server/actors/utils/source-url.js
new file mode 100644
index 0000000000..133853b978
--- /dev/null
+++ b/devtools/server/actors/utils/source-url.js
@@ -0,0 +1,38 @@
+/* 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/. */
+
+"use strict";
+
+/**
+ * Debugger.Source objects have a `url` property that exposes the value
+ * that was passed to SpiderMonkey, but unfortunately often SpiderMonkey
+ * sets a URL even in cases where it doesn't make sense, so we have to
+ * explicitly ignore the URL value in these contexts to keep things a bit
+ * more consistent.
+ *
+ * @param {Debugger.Source} source
+ *
+ * @return {string | null}
+ */
+function getDebuggerSourceURL(source) {
+  const introType = source.introductionType;
+
+  // These are all the sources that are eval or eval-like, but may still have
+  // a URL set on the source, so we explicitly ignore the source URL for these.
+  if (
+    introType === "injectedScript" ||
+    introType === "eval" ||
+    introType === "debugger eval" ||
+    introType === "Function" ||
+    introType === "javascriptURL" ||
+    introType === "eventHandler" ||
+    introType === "domTimer"
+  ) {
+    return null;
+  }
+
+  return source.url;
+}
+
+exports.getDebuggerSourceURL = getDebuggerSourceURL;