1 files changed, 75 insertions, 0 deletions
diff --git a/toolkit/components/glean/bindings/private/Quantity.cpp b/toolkit/components/glean/bindings/private/Quantity.cpp
new file mode 100644
index 0000000000..a8bf3e19a7
--- /dev/null
+++ b/toolkit/components/glean/bindings/private/Quantity.cpp
@@ -0,0 +1,75 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* 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/. */
+
+#include "mozilla/glean/bindings/Quantity.h"
+
+#include "mozilla/Components.h"
+#include "mozilla/ResultVariant.h"
+#include "mozilla/glean/bindings/ScalarGIFFTMap.h"
+#include "mozilla/glean/fog_ffi_generated.h"
+#include "nsIClassInfoImpl.h"
+#include "nsString.h"
+#include "Common.h"
+
+namespace mozilla::glean {
+
+namespace impl {
+
+void QuantityMetric::Set(int64_t aValue) const {
+  auto scalarId = ScalarIdForMetric(mId);
+  if (scalarId && aValue >= 0) {
+    uint32_t theValue = static_cast<uint32_t>(aValue);
+    if (aValue > std::numeric_limits<uint32_t>::max()) {
+      theValue = std::numeric_limits<uint32_t>::max();
+    }
+    Telemetry::ScalarSet(scalarId.extract(), theValue);
+  }
+  fog_quantity_set(mId, aValue);
+}
+
+Result<Maybe<int64_t>, nsCString> QuantityMetric::TestGetValue(
+    const nsACString& aPingName) const {
+  nsCString err;
+  if (fog_quantity_test_get_error(mId, &err)) {
+    return Err(err);
+  }
+  if (!fog_quantity_test_has_value(mId, &aPingName)) {
+    return Maybe<int64_t>();
+  }
+  return Some(fog_quantity_test_get_value(mId, &aPingName));
+}
+
+}  // namespace impl
+
+NS_IMPL_CLASSINFO(GleanQuantity, nullptr, 0, {0})
+NS_IMPL_ISUPPORTS_CI(GleanQuantity, nsIGleanQuantity)
+
+NS_IMETHODIMP
+GleanQuantity::Set(int64_t aValue) {
+  mQuantity.Set(aValue);
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+GleanQuantity::TestGetValue(const nsACString& aPingName,
+                            JS::MutableHandle<JS::Value> aResult) {
+  auto result = mQuantity.TestGetValue(aPingName);
+  if (result.isErr()) {
+    aResult.set(JS::UndefinedValue());
+    LogToBrowserConsole(nsIScriptError::errorFlag,
+                        NS_ConvertUTF8toUTF16(result.unwrapErr()));
+    return NS_ERROR_LOSS_OF_SIGNIFICANT_DATA;
+  }
+  auto optresult = result.unwrap();
+  if (optresult.isNothing()) {
+    aResult.set(JS::UndefinedValue());
+  } else {
+    aResult.set(JS::DoubleValue(static_cast<double>(optresult.value())));
+  }
+  return NS_OK;
+}
+
+}  // namespace mozilla::glean