1 files changed, 116 insertions, 0 deletions
diff --git a/layout/style/test/gtest/StyloParsingBench.cpp b/layout/style/test/gtest/StyloParsingBench.cpp
new file mode 100644
index 0000000000..4c14ebed7c
--- /dev/null
+++ b/layout/style/test/gtest/StyloParsingBench.cpp
@@ -0,0 +1,116 @@
+/* -*- 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 "gtest/gtest.h"
+#include "gtest/MozGTestBench.h"
+#include "nsString.h"
+#include "ExampleStylesheet.h"
+#include "ServoBindings.h"
+#include "mozilla/dom/DOMString.h"
+#include "mozilla/Encoding.h"
+#include "mozilla/Utf8.h"
+#include "mozilla/NullPrincipal.h"
+#include "mozilla/css/SheetParsingMode.h"
+#include "ReferrerInfo.h"
+#include "nsCSSValue.h"
+#include "ReferrerInfo.h"
+
+using namespace mozilla;
+using namespace mozilla::css;
+using namespace mozilla::dom;
+using namespace mozilla::net;
+
+// Bug 1436018 - Disable Stylo microbenchmark on Windows
+#if !defined(_WIN32) && !defined(_WIN64)
+
+#  define PARSING_REPETITIONS 20
+#  define SETPROPERTY_REPETITIONS (1000 * 1000)
+#  define GETPROPERTY_REPETITIONS (1000 * 1000)
+
+static void ServoParsingBench(const StyleUseCounters* aCounters) {
+  auto css = AsBytes(MakeStringSpan(EXAMPLE_STYLESHEET));
+  nsCString cssStr;
+  cssStr.Append(css);
+  ASSERT_EQ(Encoding::UTF8ValidUpTo(css), css.Length());
+
+  RefPtr<nsIURI> uri = NullPrincipal::CreateURI();
+  nsCOMPtr<nsIReferrerInfo> referrerInfo = new ReferrerInfo(nullptr);
+  RefPtr<URLExtraData> data =
+      new URLExtraData(uri.forget(), referrerInfo.forget(),
+                       NullPrincipal::CreateWithoutOriginAttributes());
+  for (int i = 0; i < PARSING_REPETITIONS; i++) {
+    RefPtr<StyleStylesheetContents> stylesheet =
+        Servo_StyleSheet_FromUTF8Bytes(
+            nullptr, nullptr, nullptr, &cssStr, eAuthorSheetFeatures, data,
+            eCompatibility_FullStandards, nullptr, aCounters,
+            StyleAllowImportRules::Yes, StyleSanitizationKind::None, nullptr)
+            .Consume();
+  }
+}
+
+static constexpr auto STYLE_RULE = StyleCssRuleType::Style;
+
+static void ServoSetPropertyByIdBench(const nsACString& css) {
+  RefPtr<StyleLockedDeclarationBlock> block =
+      Servo_DeclarationBlock_CreateEmpty().Consume();
+  RefPtr<nsIURI> uri = NullPrincipal::CreateURI();
+  nsCOMPtr<nsIReferrerInfo> referrerInfo = new ReferrerInfo(nullptr);
+  RefPtr<URLExtraData> data =
+      new URLExtraData(uri.forget(), referrerInfo.forget(),
+                       NullPrincipal::CreateWithoutOriginAttributes());
+  ASSERT_TRUE(IsUtf8(css));
+
+  for (int i = 0; i < SETPROPERTY_REPETITIONS; i++) {
+    Servo_DeclarationBlock_SetPropertyById(
+        block, eCSSProperty_width, &css,
+        /* is_important = */ false, data, StyleParsingMode::DEFAULT,
+        eCompatibility_FullStandards, nullptr, STYLE_RULE, {});
+  }
+}
+
+static void ServoGetPropertyValueById() {
+  RefPtr<StyleLockedDeclarationBlock> block =
+      Servo_DeclarationBlock_CreateEmpty().Consume();
+
+  RefPtr<nsIURI> uri = NullPrincipal::CreateURI();
+  nsCOMPtr<nsIReferrerInfo> referrerInfo = new ReferrerInfo(nullptr);
+  RefPtr<URLExtraData> data =
+      new URLExtraData(uri.forget(), referrerInfo.forget(),
+                       NullPrincipal::CreateWithoutOriginAttributes());
+  constexpr auto css_ = "10px"_ns;
+  const nsACString& css = css_;
+  Servo_DeclarationBlock_SetPropertyById(
+      block, eCSSProperty_width, &css,
+      /* is_important = */ false, data, StyleParsingMode::DEFAULT,
+      eCompatibility_FullStandards, nullptr, STYLE_RULE, {});
+
+  for (int i = 0; i < GETPROPERTY_REPETITIONS; i++) {
+    nsAutoCString value;
+    Servo_DeclarationBlock_GetPropertyValueById(block, eCSSProperty_width,
+                                                &value);
+    ASSERT_TRUE(value.EqualsLiteral("10px"));
+  }
+}
+
+MOZ_GTEST_BENCH(Stylo, Servo_StyleSheet_FromUTF8Bytes_Bench,
+                [] { ServoParsingBench(nullptr); });
+
+MOZ_GTEST_BENCH(Stylo, Servo_StyleSheet_FromUTF8Bytes_Bench_UseCounters, [] {
+  UniquePtr<StyleUseCounters> counters(Servo_UseCounters_Create());
+  ServoParsingBench(counters.get());
+});
+
+MOZ_GTEST_BENCH(Stylo, Servo_DeclarationBlock_SetPropertyById_Bench,
+                [] { ServoSetPropertyByIdBench("10px"_ns); });
+
+MOZ_GTEST_BENCH(Stylo,
+                Servo_DeclarationBlock_SetPropertyById_WithInitialSpace_Bench,
+                [] { ServoSetPropertyByIdBench(" 10px"_ns); });
+
+MOZ_GTEST_BENCH(Stylo, Servo_DeclarationBlock_GetPropertyById_Bench,
+                ServoGetPropertyValueById);
+
+#endif