Create a new local context class.

jm318 · Commit bot · commit b6460e24cf59 · 2017-05-26T03:28:27.000Z
CSSParserLocalContext represents local context for each property. Currently it only has one boolean field (use_alias_parsing), but it will be later extended to contain other info, such as whether the property is a longhand of a shorthand. BUG=668012 Review-Url: https://codereview.chromium.org/2901393002 Cr-Commit-Position: refs/heads/master@{#474897}
diff --git a/third_party/WebKit/Source/core/css/BUILD.gn b/third_party/WebKit/Source/core/css/BUILD.gn
@@ -348,6 +348,8 @@ blink_core_sources("css") {
     "parser/CSSParserIdioms.h",
     "parser/CSSParserImpl.cpp",
     "parser/CSSParserImpl.h",
+    "parser/CSSParserLocalContext.cpp",
+    "parser/CSSParserLocalContext.h",
     "parser/CSSParserMode.h",
     "parser/CSSParserObserver.h",
     "parser/CSSParserObserverWrapper.cpp",
diff --git a/third_party/WebKit/Source/core/css/parser/CSSParserLocalContext.cpp b/third_party/WebKit/Source/core/css/parser/CSSParserLocalContext.cpp
@@ -0,0 +1,18 @@
+// Copyright 2017 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "core/css/parser/CSSParserLocalContext.h"
+
+namespace blink {
+
+CSSParserLocalContext::CSSParserLocalContext() : use_alias_parsing_(false) {}
+
+CSSParserLocalContext::CSSParserLocalContext(bool use_alias_parsing)
+    : use_alias_parsing_(use_alias_parsing) {}
+
+bool CSSParserLocalContext::GetUseAliasParsing() {
+  return use_alias_parsing_;
+}
+
+}  // namespace blink
diff --git a/third_party/WebKit/Source/core/css/parser/CSSParserLocalContext.h b/third_party/WebKit/Source/core/css/parser/CSSParserLocalContext.h
@@ -0,0 +1,29 @@
+// Copyright 2017 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef CSSParserLocalContext_h
+#define CSSParserLocalContext_h
+
+#include "platform/wtf/Allocator.h"
+
+namespace blink {
+
+// A wrapper class containing all local context when parsing a property.
+// TODO(jiameng): add info for shorthand properties into this class.
+
+class CSSParserLocalContext {
+  STACK_ALLOCATED();
+
+ public:
+  CSSParserLocalContext();
+  explicit CSSParserLocalContext(bool use_alias_parsing);
+  bool GetUseAliasParsing();
+
+ private:
+  bool use_alias_parsing_;
+};
+
+}  // namespace blink
+
+#endif  // CSSParserLocalContext_h
