CSS Custom Properties (Variables)

third_party/WebKit/Source/core/css/parser/CSSParserToken.cpp

 // Copyright 2014 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 "config.h"
 #include "core/css/parser/CSSParserToken.h"
 
 #include "core/css/CSSMarkup.h"
 #include "core/css/parser/CSSPropertyParser.h"
 #include "wtf/HashMap.h"
@@ skipping 111 matching lines @@
 
 CSSValueID CSSParserToken::functionId() const
 {
     if (m_type != FunctionToken)
         return CSSValueInvalid;
     if (m_id < 0)
         m_id = cssValueKeywordID(value());
     return static_cast<CSSValueID>(m_id);
 }
 
+bool CSSParserToken::hasStringBacking() const
+{
+    CSSParserTokenType tokenType = type();
+    return tokenType == IdentToken
+        || tokenType == FunctionToken
+        || tokenType == AtKeywordToken
+        || tokenType == HashToken
+        || tokenType == UrlToken
+        || tokenType == DimensionToken
+        || tokenType == StringToken;
+}
+
+CSSParserToken CSSParserToken::copyWithUpdatedString(const CSSParserString& parserString) const
+{
+    CSSParserToken copy(*this);
+    copy.initValueFromCSSParserString(parserString);
+    return copy;
+}
+
 void CSSParserToken::serialize(StringBuilder& builder) const
 {
     // This is currently only used for @supports CSSOM. To keep our implementation
     // simple we handle some of the edge cases incorrectly (see comments below).
     switch (type()) {
     case IdentToken:
         serializeIdentifier(value(), builder);
         break;
     case FunctionToken:
         serializeIdentifier(value(), builder);
@@ skipping 74 matching lines @@
         return builder.append('}');
 
     case EOFToken:
     case CommentToken:
         ASSERT_NOT_REACHED();
         return;
     }
 }
 
 } // namespace blink