1 files changed, 69 insertions, 0 deletions
diff --git a/toolkit/components/glean/tests/pytest/gifft_output_Event b/toolkit/components/glean/tests/pytest/gifft_output_Event
new file mode 100644
index 0000000000..114267fbfd
--- /dev/null
+++ b/toolkit/components/glean/tests/pytest/gifft_output_Event
@@ -0,0 +1,69 @@
+// -*- mode: C++ -*-
+
+/* This file is auto-generated by run_glean_parser.py.
+   It is only for internal use by types in
+   toolkit/components/glean/bindings/private */
+
+#include "mozilla/AppShutdown.h"
+#include "mozilla/ClearOnShutdown.h"
+#include "mozilla/glean/bindings/GleanJSMetricsLookup.h"
+#include "mozilla/glean/bindings/jog/JOG.h"
+#include "mozilla/Maybe.h"
+#include "mozilla/Telemetry.h"
+#include <tuple>
+#include "mozilla/DataMutex.h"
+#include "nsIThread.h"
+#include "nsThreadUtils.h"
+
+#ifndef mozilla_glean_EventGifftMap_h
+#define mozilla_glean_EventGifftMap_h
+
+#define DYNAMIC_METRIC_BIT (26)
+#define GLEAN_METRIC_ID(id) ((id) & ((1ULL << 27) - 1))
+
+namespace mozilla::glean {
+
+using Telemetry::EventID;
+
+
+static inline Maybe<EventID> EventIdForMetric(uint32_t aId) {
+  switch(aId) {
+    case 17: { // test.nested.event_metric
+      return Some(EventID::EventMetric_EnumNames_AreStrange);
+    }
+    case 18: { // test.nested.event_metric_with_extra
+      return Some(EventID::EventMetric_EnumName_WithExtra);
+    }
+    default: {
+      if (MOZ_UNLIKELY(aId & (1 << DYNAMIC_METRIC_BIT))) {
+        // Dynamic (runtime-registered) metric. Use its static (compiletime-
+        // registered) metric's telemetry_mirror mapping.
+        // ...if applicable.
+
+        // Only JS can use dynamic (runtime-registered) metric ids.
+        MOZ_ASSERT(NS_IsMainThread());
+
+        auto metricName = JOG::GetMetricName(aId);
+        // All of these should have names, but the storage only lasts until
+        // XPCOMWillShutdown, so it might return `Nothing()`.
+        if (metricName.isSome()) {
+          auto maybeMetric = MetricByNameLookup(metricName.ref());
+          if (maybeMetric.isSome()) {
+            uint32_t staticId = GLEAN_METRIC_ID(maybeMetric.value());
+            // Let's ensure we don't infinite loop, huh.
+            MOZ_ASSERT(!(staticId & (1 << DYNAMIC_METRIC_BIT)));
+            return EventIdForMetric(staticId);
+          }
+        }
+      }
+      return Nothing();
+    }
+  }
+}
+
+}  // namespace mozilla::glean
+
+#undef GLEAN_METRIC_ID
+#undef DYNAMIC_METRIC_BIT
+
+#endif  // mozilla_glean_EventGifftMaps_h