CSSValue Immediates: Change CSSValue to an object instead of a pointer

Source/core/css/CSSValue.cpp

Index: Source/core/css/CSSValue.cpp
diff --git a/Source/core/css/CSSValue.cpp b/Source/core/css/CSSValue.cpp
deleted file mode 100644
index d8a94be96cb0712b2e146f95e0c2bab34ab8f683..0000000000000000000000000000000000000000
--- a/Source/core/css/CSSValue.cpp
+++ /dev/null
@@ -1,498 +0,0 @@
-/*
- * Copyright (C) 2011 Andreas Kling (kling@webkit.org)
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
- * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
- * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- */
-
-#include "config.h"
-#include "core/css/CSSValue.h"
-
-#include "core/css/CSSBorderImageSliceValue.h"
-#include "core/css/CSSCalculationValue.h"
-#include "core/css/CSSCanvasValue.h"
-#include "core/css/CSSContentDistributionValue.h"
-#include "core/css/CSSCrossfadeValue.h"
-#include "core/css/CSSCursorImageValue.h"
-#include "core/css/CSSFontFaceSrcValue.h"
-#include "core/css/CSSFontFeatureValue.h"
-#include "core/css/CSSFunctionValue.h"
-#include "core/css/CSSGradientValue.h"
-#include "core/css/CSSGridLineNamesValue.h"
-#include "core/css/CSSGridTemplateAreasValue.h"
-#include "core/css/CSSImageSetValue.h"
-#include "core/css/CSSImageValue.h"
-#include "core/css/CSSInheritedValue.h"
-#include "core/css/CSSInitialValue.h"
-#include "core/css/CSSLineBoxContainValue.h"
-#include "core/css/CSSPathValue.h"
-#include "core/css/CSSPrimitiveValue.h"
-#include "core/css/CSSReflectValue.h"
-#include "core/css/CSSSVGDocumentValue.h"
-#include "core/css/CSSShadowValue.h"
-#include "core/css/CSSTimingFunctionValue.h"
-#include "core/css/CSSUnicodeRangeValue.h"
-#include "core/css/CSSUnsetValue.h"
-#include "core/css/CSSValueList.h"
-
-namespace blink {
-
-struct SameSizeAsCSSValue : public RefCountedWillBeGarbageCollectedFinalized<SameSizeAsCSSValue>
-{
-    uint32_t bitfields;
-};
-
-static_assert(sizeof(CSSValue) <= sizeof(SameSizeAsCSSValue), "CSSValue should stay small");
-
-bool CSSValue::isImplicitInitialValue() const
-{
-    return m_classType == InitialClass && toCSSInitialValue(this)->isImplicit();
-}
-
-bool CSSValue::hasFailedOrCanceledSubresources() const
-{
-    if (isValueList())
-        return toCSSValueList(this)->hasFailedOrCanceledSubresources();
-    if (classType() == FontFaceSrcClass)
-        return toCSSFontFaceSrcValue(this)->hasFailedOrCanceledSubresources();
-    if (classType() == ImageClass)
-        return toCSSImageValue(this)->hasFailedOrCanceledSubresources();
-    if (classType() == CrossfadeClass)
-        return toCSSCrossfadeValue(this)->hasFailedOrCanceledSubresources();
-    if (classType() == ImageSetClass)
-        return toCSSImageSetValue(this)->hasFailedOrCanceledSubresources();
-
-    return false;
-}
-
-template<class ChildClassType>
-inline static bool compareCSSValues(const CSSValue& first, const CSSValue& second)
-{
-    return static_cast<const ChildClassType&>(first).equals(static_cast<const ChildClassType&>(second));
-}
-
-bool CSSValue::equals(const CSSValue& other) const
-{
-    if (m_classType == other.m_classType) {
-        switch (m_classType) {
-        case BorderImageSliceClass:
-            return compareCSSValues<CSSBorderImageSliceValue>(*this, other);
-        case CanvasClass:
-            return compareCSSValues<CSSCanvasValue>(*this, other);
-        case CursorImageClass:
-            return compareCSSValues<CSSCursorImageValue>(*this, other);
-        case FontFaceSrcClass:
-            return compareCSSValues<CSSFontFaceSrcValue>(*this, other);
-        case FontFeatureClass:
-            return compareCSSValues<CSSFontFeatureValue>(*this, other);
-        case FunctionClass:
-            return compareCSSValues<CSSFunctionValue>(*this, other);
-        case LinearGradientClass:
-            return compareCSSValues<CSSLinearGradientValue>(*this, other);
-        case RadialGradientClass:
-            return compareCSSValues<CSSRadialGradientValue>(*this, other);
-        case CrossfadeClass:
-            return compareCSSValues<CSSCrossfadeValue>(*this, other);
-        case ImageClass:
-            return compareCSSValues<CSSImageValue>(*this, other);
-        case InheritedClass:
-            return compareCSSValues<CSSInheritedValue>(*this, other);
-        case InitialClass:
-            return compareCSSValues<CSSInitialValue>(*this, other);
-        case UnsetClass:
-            return compareCSSValues<CSSUnsetValue>(*this, other);
-        case GridLineNamesClass:
-            return compareCSSValues<CSSGridLineNamesValue>(*this, other);
-        case GridTemplateAreasClass:
-            return compareCSSValues<CSSGridTemplateAreasValue>(*this, other);
-        case PathClass:
-            return compareCSSValues<CSSPathValue>(*this, other);
-        case PrimitiveClass:
-            return compareCSSValues<CSSPrimitiveValue>(*this, other);
-        case ReflectClass:
-            return compareCSSValues<CSSReflectValue>(*this, other);
-        case ShadowClass:
-            return compareCSSValues<CSSShadowValue>(*this, other);
-        case CubicBezierTimingFunctionClass:
-            return compareCSSValues<CSSCubicBezierTimingFunctionValue>(*this, other);
-        case StepsTimingFunctionClass:
-            return compareCSSValues<CSSStepsTimingFunctionValue>(*this, other);
-        case UnicodeRangeClass:
-            return compareCSSValues<CSSUnicodeRangeValue>(*this, other);
-        case ValueListClass:
-            return compareCSSValues<CSSValueList>(*this, other);
-        case LineBoxContainClass:
-            return compareCSSValues<CSSLineBoxContainValue>(*this, other);
-        case CalculationClass:
-            return compareCSSValues<CSSCalcValue>(*this, other);
-        case ImageSetClass:
-            return compareCSSValues<CSSImageSetValue>(*this, other);
-        case CSSSVGDocumentClass:
-            return compareCSSValues<CSSSVGDocumentValue>(*this, other);
-        case CSSContentDistributionClass:
-            return compareCSSValues<CSSContentDistributionValue>(*this, other);
-        default:
-            ASSERT_NOT_REACHED();
-            return false;
-        }
-    }
-    return false;
-}
-
-String CSSValue::cssText() const
-{
-    switch (classType()) {
-    case BorderImageSliceClass:
-        return toCSSBorderImageSliceValue(this)->customCSSText();
-    case CanvasClass:
-        return toCSSCanvasValue(this)->customCSSText();
-    case CursorImageClass:
-        return toCSSCursorImageValue(this)->customCSSText();
-    case FontFaceSrcClass:
-        return toCSSFontFaceSrcValue(this)->customCSSText();
-    case FontFeatureClass:
-        return toCSSFontFeatureValue(this)->customCSSText();
-    case FunctionClass:
-        return toCSSFunctionValue(this)->customCSSText();
-    case LinearGradientClass:
-        return toCSSLinearGradientValue(this)->customCSSText();
-    case RadialGradientClass:
-        return toCSSRadialGradientValue(this)->customCSSText();
-    case CrossfadeClass:
-        return toCSSCrossfadeValue(this)->customCSSText();
-    case ImageClass:
-        return toCSSImageValue(this)->customCSSText();
-    case InheritedClass:
-        return toCSSInheritedValue(this)->customCSSText();
-    case UnsetClass:
-        return toCSSUnsetValue(this)->customCSSText();
-    case InitialClass:
-        return toCSSInitialValue(this)->customCSSText();
-    case GridLineNamesClass:
-        return toCSSGridLineNamesValue(this)->customCSSText();
-    case GridTemplateAreasClass:
-        return toCSSGridTemplateAreasValue(this)->customCSSText();
-    case PathClass:
-        return toCSSPathValue(this)->customCSSText();
-    case PrimitiveClass:
-        return toCSSPrimitiveValue(this)->customCSSText();
-    case ReflectClass:
-        return toCSSReflectValue(this)->customCSSText();
-    case ShadowClass:
-        return toCSSShadowValue(this)->customCSSText();
-    case CubicBezierTimingFunctionClass:
-        return toCSSCubicBezierTimingFunctionValue(this)->customCSSText();
-    case StepsTimingFunctionClass:
-        return toCSSStepsTimingFunctionValue(this)->customCSSText();
-    case UnicodeRangeClass:
-        return toCSSUnicodeRangeValue(this)->customCSSText();
-    case ValueListClass:
-        return toCSSValueList(this)->customCSSText();
-    case LineBoxContainClass:
-        return toCSSLineBoxContainValue(this)->customCSSText();
-    case CalculationClass:
-        return toCSSCalcValue(this)->customCSSText();
-    case ImageSetClass:
-        return toCSSImageSetValue(this)->customCSSText();
-    case CSSSVGDocumentClass:
-        return toCSSSVGDocumentValue(this)->customCSSText();
-    case CSSContentDistributionClass:
-        return toCSSContentDistributionValue(this)->customCSSText();
-    }
-    ASSERT_NOT_REACHED();
-    return String();
-}
-
-void CSSValue::destroy()
-{
-    switch (classType()) {
-    case BorderImageSliceClass:
-        delete toCSSBorderImageSliceValue(this);
-        return;
-    case CanvasClass:
-        delete toCSSCanvasValue(this);
-        return;
-    case CursorImageClass:
-        delete toCSSCursorImageValue(this);
-        return;
-    case FontFaceSrcClass:
-        delete toCSSFontFaceSrcValue(this);
-        return;
-    case FontFeatureClass:
-        delete toCSSFontFeatureValue(this);
-        return;
-    case FunctionClass:
-        delete toCSSFunctionValue(this);
-        return;
-    case LinearGradientClass:
-        delete toCSSLinearGradientValue(this);
-        return;
-    case RadialGradientClass:
-        delete toCSSRadialGradientValue(this);
-        return;
-    case CrossfadeClass:
-        delete toCSSCrossfadeValue(this);
-        return;
-    case ImageClass:
-        delete toCSSImageValue(this);
-        return;
-    case InheritedClass:
-        delete toCSSInheritedValue(this);
-        return;
-    case InitialClass:
-        delete toCSSInitialValue(this);
-        return;
-    case UnsetClass:
-        delete toCSSUnsetValue(this);
-        return;
-    case GridLineNamesClass:
-        delete toCSSGridLineNamesValue(this);
-        return;
-    case GridTemplateAreasClass:
-        delete toCSSGridTemplateAreasValue(this);
-        return;
-    case PathClass:
-        delete toCSSPathValue(this);
-        return;
-    case PrimitiveClass:
-        delete toCSSPrimitiveValue(this);
-        return;
-    case ReflectClass:
-        delete toCSSReflectValue(this);
-        return;
-    case ShadowClass:
-        delete toCSSShadowValue(this);
-        return;
-    case CubicBezierTimingFunctionClass:
-        delete toCSSCubicBezierTimingFunctionValue(this);
-        return;
-    case StepsTimingFunctionClass:
-        delete toCSSStepsTimingFunctionValue(this);
-        return;
-    case UnicodeRangeClass:
-        delete toCSSUnicodeRangeValue(this);
-        return;
-    case ValueListClass:
-        delete toCSSValueList(this);
-        return;
-    case LineBoxContainClass:
-        delete toCSSLineBoxContainValue(this);
-        return;
-    case CalculationClass:
-        delete toCSSCalcValue(this);
-        return;
-    case ImageSetClass:
-        delete toCSSImageSetValue(this);
-        return;
-    case CSSSVGDocumentClass:
-        delete toCSSSVGDocumentValue(this);
-        return;
-    case CSSContentDistributionClass:
-        delete toCSSContentDistributionValue(this);
-        return;
-    }
-    ASSERT_NOT_REACHED();
-}
-
-void CSSValue::finalizeGarbageCollectedObject()
-{
-    switch (classType()) {
-    case BorderImageSliceClass:
-        toCSSBorderImageSliceValue(this)->~CSSBorderImageSliceValue();
-        return;
-    case CanvasClass:
-        toCSSCanvasValue(this)->~CSSCanvasValue();
-        return;
-    case CursorImageClass:
-        toCSSCursorImageValue(this)->~CSSCursorImageValue();
-        return;
-    case FontFaceSrcClass:
-        toCSSFontFaceSrcValue(this)->~CSSFontFaceSrcValue();
-        return;
-    case FontFeatureClass:
-        toCSSFontFeatureValue(this)->~CSSFontFeatureValue();
-        return;
-    case FunctionClass:
-        toCSSFunctionValue(this)->~CSSFunctionValue();
-        return;
-    case LinearGradientClass:
-        toCSSLinearGradientValue(this)->~CSSLinearGradientValue();
-        return;
-    case RadialGradientClass:
-        toCSSRadialGradientValue(this)->~CSSRadialGradientValue();
-        return;
-    case CrossfadeClass:
-        toCSSCrossfadeValue(this)->~CSSCrossfadeValue();
-        return;
-    case ImageClass:
-        toCSSImageValue(this)->~CSSImageValue();
-        return;
-    case InheritedClass:
-        toCSSInheritedValue(this)->~CSSInheritedValue();
-        return;
-    case InitialClass:
-        toCSSInitialValue(this)->~CSSInitialValue();
-        return;
-    case UnsetClass:
-        toCSSUnsetValue(this)->~CSSUnsetValue();
-        return;
-    case GridLineNamesClass:
-        toCSSGridLineNamesValue(this)->~CSSGridLineNamesValue();
-        return;
-    case GridTemplateAreasClass:
-        toCSSGridTemplateAreasValue(this)->~CSSGridTemplateAreasValue();
-        return;
-    case PathClass:
-        toCSSPathValue(this)->~CSSPathValue();
-        return;
-    case PrimitiveClass:
-        toCSSPrimitiveValue(this)->~CSSPrimitiveValue();
-        return;
-    case ReflectClass:
-        toCSSReflectValue(this)->~CSSReflectValue();
-        return;
-    case ShadowClass:
-        toCSSShadowValue(this)->~CSSShadowValue();
-        return;
-    case CubicBezierTimingFunctionClass:
-        toCSSCubicBezierTimingFunctionValue(this)->~CSSCubicBezierTimingFunctionValue();
-        return;
-    case StepsTimingFunctionClass:
-        toCSSStepsTimingFunctionValue(this)->~CSSStepsTimingFunctionValue();
-        return;
-    case UnicodeRangeClass:
-        toCSSUnicodeRangeValue(this)->~CSSUnicodeRangeValue();
-        return;
-    case ValueListClass:
-        toCSSValueList(this)->~CSSValueList();
-        return;
-    case LineBoxContainClass:
-        toCSSLineBoxContainValue(this)->~CSSLineBoxContainValue();
-        return;
-    case CalculationClass:
-        toCSSCalcValue(this)->~CSSCalcValue();
-        return;
-    case ImageSetClass:
-        toCSSImageSetValue(this)->~CSSImageSetValue();
-        return;
-    case CSSSVGDocumentClass:
-        toCSSSVGDocumentValue(this)->~CSSSVGDocumentValue();
-        return;
-    case CSSContentDistributionClass:
-        toCSSContentDistributionValue(this)->~CSSContentDistributionValue();
-        return;
-    }
-    ASSERT_NOT_REACHED();
-}
-
-DEFINE_TRACE(CSSValue)
-{
-    switch (classType()) {
-    case BorderImageSliceClass:
-        toCSSBorderImageSliceValue(this)->traceAfterDispatch(visitor);
-        return;
-    case CanvasClass:
-        toCSSCanvasValue(this)->traceAfterDispatch(visitor);
-        return;
-    case CursorImageClass:
-        toCSSCursorImageValue(this)->traceAfterDispatch(visitor);
-        return;
-    case FontFaceSrcClass:
-        toCSSFontFaceSrcValue(this)->traceAfterDispatch(visitor);
-        return;
-    case FontFeatureClass:
-        toCSSFontFeatureValue(this)->traceAfterDispatch(visitor);
-        return;
-    case FunctionClass:
-        toCSSFunctionValue(this)->traceAfterDispatch(visitor);
-        return;
-    case LinearGradientClass:
-        toCSSLinearGradientValue(this)->traceAfterDispatch(visitor);
-        return;
-    case RadialGradientClass:
-        toCSSRadialGradientValue(this)->traceAfterDispatch(visitor);
-        return;
-    case CrossfadeClass:
-        toCSSCrossfadeValue(this)->traceAfterDispatch(visitor);
-        return;
-    case ImageClass:
-        toCSSImageValue(this)->traceAfterDispatch(visitor);
-        return;
-    case InheritedClass:
-        toCSSInheritedValue(this)->traceAfterDispatch(visitor);
-        return;
-    case InitialClass:
-        toCSSInitialValue(this)->traceAfterDispatch(visitor);
-        return;
-    case UnsetClass:
-        toCSSUnsetValue(this)->traceAfterDispatch(visitor);
-        return;
-    case GridLineNamesClass:
-        toCSSGridLineNamesValue(this)->traceAfterDispatch(visitor);
-        return;
-    case GridTemplateAreasClass:
-        toCSSGridTemplateAreasValue(this)->traceAfterDispatch(visitor);
-        return;
-    case PathClass:
-        toCSSPathValue(this)->traceAfterDispatch(visitor);
-        return;
-    case PrimitiveClass:
-        toCSSPrimitiveValue(this)->traceAfterDispatch(visitor);
-        return;
-    case ReflectClass:
-        toCSSReflectValue(this)->traceAfterDispatch(visitor);
-        return;
-    case ShadowClass:
-        toCSSShadowValue(this)->traceAfterDispatch(visitor);
-        return;
-    case CubicBezierTimingFunctionClass:
-        toCSSCubicBezierTimingFunctionValue(this)->traceAfterDispatch(visitor);
-        return;
-    case StepsTimingFunctionClass:
-        toCSSStepsTimingFunctionValue(this)->traceAfterDispatch(visitor);
-        return;
-    case UnicodeRangeClass:
-        toCSSUnicodeRangeValue(this)->traceAfterDispatch(visitor);
-        return;
-    case ValueListClass:
-        toCSSValueList(this)->traceAfterDispatch(visitor);
-        return;
-    case LineBoxContainClass:
-        toCSSLineBoxContainValue(this)->traceAfterDispatch(visitor);
-        return;
-    case CalculationClass:
-        toCSSCalcValue(this)->traceAfterDispatch(visitor);
-        return;
-    case ImageSetClass:
-        toCSSImageSetValue(this)->traceAfterDispatch(visitor);
-        return;
-    case CSSSVGDocumentClass:
-        toCSSSVGDocumentValue(this)->traceAfterDispatch(visitor);
-        return;
-    case CSSContentDistributionClass:
-        toCSSContentDistributionValue(this)->traceAfterDispatch(visitor);
-        return;
-    }
-    ASSERT_NOT_REACHED();
-}
-
-}