CSS Custom Properties (Variables)

third_party/WebKit/Source/core/css/parser/CSSParserValues.h

 /*
  * Copyright (C) 2003 Lars Knoll (knoll@kde.org)
  * Copyright (C) 2004, 2005, 2006, 2008, 2009, 2010 Apple Inc. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  *
  * This library is distributed in the hope that it will be useful,
@@ skipping 17 matching lines @@
 #include "core/css/parser/CSSParserTokenRange.h"
 #include "wtf/Allocator.h"
 
 namespace blink {
 
 class QualifiedName;
 
 struct CSSParserFunction;
 struct CSSParserCalcFunction;
 class CSSParserValueList;
+class CSSVariableData;
 
 struct CSSParserValue {
     DISALLOW_NEW_EXCEPT_PLACEMENT_NEW();
     CSSValueID id;
     bool isInt;
     union {
         double fValue;
         int iValue;
         CSSParserString string;
         CSSParserFunction* function;
         CSSParserCalcFunction* calcFunction;
         CSSParserValueList* valueList;
         struct {
             UChar32 start;
             UChar32 end;
         } m_unicodeRange;
+        CSSVariableData* variableData;
     };
     enum {
         Operator  = 0x100000,
         Function  = 0x100001,
         CalcFunction  = 0x100002,
         ValueList = 0x100003,
         HexColor = 0x100004,
         Identifier = 0x100005,
         // Represents a dimension by a list of two values, a UnitType::Number and an Identifier
         DimensionList = 0x100006,
         // Represents a unicode range by a pair of UChar32 values
         UnicodeRange = 0x100007,
         String = 0x100008,
         URI = 0x100009,
+        VariableReference = 0x100010,
     };
     int m_unit;
     CSSPrimitiveValue::UnitType unit() const { return static_cast<CSSPrimitiveValue::UnitType>(m_unit); }
     void setUnit(CSSPrimitiveValue::UnitType unit) { m_unit = static_cast<int>(unit); }
 
     inline void setFromNumber(double value, CSSPrimitiveValue::UnitType);
     inline void setFromOperator(UChar);
     inline void setFromValueList(PassOwnPtr<CSSParserValueList>);
 };
 
@@ skipping 26 matching lines @@
         if (index < m_values.size())
             m_current = index;
     }
 
     CSSParserValue* valueAt(unsigned i) { return i < m_values.size() ? &m_values[i] : nullptr; }
 
     void clearAndLeakValues() { m_values.clear(); m_current = 0;}
     void destroyAndClear();
 
 private:
+    void checkForVariableReferencesOrDestroyAndClear(const CSSParserTokenRange& originalRange);
+    void consumeVariableValue(const CSSParserTokenRange&);
+
     unsigned m_current;
     Vector<CSSParserValue, 4> m_values;
 };
 
 struct CSSParserFunction {
     USING_FAST_MALLOC(CSSParserFunction);
 public:
     CSSValueID id;
     OwnPtr<CSSParserValueList> args;
 };
@@ skipping 25 matching lines @@
 {
     id = CSSValueInvalid;
     this->valueList = valueList.leakPtr();
     m_unit = ValueList;
     isInt = false;
 }
 
 }
 
 #endif