90 lines
3.3 KiB
C++
90 lines
3.3 KiB
C++
/*
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* Copyright (C) 2011, 2012 Google Inc. All rights reserved.
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* Copyright (C) 2021 Apple Inc. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
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* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
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* THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#pragma once
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#include "CalculationCategory.h"
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#include "CalculationValue.h"
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#include <wtf/RefCounted.h>
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#include <wtf/Forward.h>
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namespace WebCore {
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class CSSToLengthConversionData;
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enum CSSPropertyID : uint16_t;
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enum class CSSUnitType : uint8_t;
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class CSSCalcExpressionNode : public RefCounted<CSSCalcExpressionNode> {
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public:
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enum Type {
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CssCalcPrimitiveValue = 1,
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CssCalcOperation,
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CssCalcNegate,
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CssCalcInvert,
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};
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virtual ~CSSCalcExpressionNode() = default;
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virtual bool isZero() const = 0;
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virtual std::unique_ptr<CalcExpressionNode> createCalcExpression(const CSSToLengthConversionData&) const = 0;
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virtual double doubleValue(CSSUnitType) const = 0;
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virtual double computeLengthPx(const CSSToLengthConversionData&) const = 0;
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virtual bool equals(const CSSCalcExpressionNode& other) const { return m_category == other.m_category; }
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virtual Type type() const = 0;
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virtual CSSUnitType primitiveType() const = 0;
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virtual void collectDirectComputationalDependencies(HashSet<CSSPropertyID>&) const = 0;
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virtual void collectDirectRootComputationalDependencies(HashSet<CSSPropertyID>&) const = 0;
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CalculationCategory category() const { return m_category; }
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virtual void dump(TextStream&) const = 0;
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protected:
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CSSCalcExpressionNode(CalculationCategory category)
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: m_category(category)
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{
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}
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private:
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CalculationCategory m_category;
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};
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TextStream& operator<<(TextStream&, const CSSCalcExpressionNode&);
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#if !LOG_DISABLED
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String prettyPrintNode(const CSSCalcExpressionNode&);
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String prettyPrintNodes(const Vector<Ref<CSSCalcExpressionNode>>&);
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#endif
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}
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#define SPECIALIZE_TYPE_TRAITS_CSSCALCEXPRESSION_NODE(ToValueTypeName, predicate) \
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SPECIALIZE_TYPE_TRAITS_BEGIN(WebCore::ToValueTypeName) \
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static bool isType(const WebCore::CSSCalcExpressionNode& node) { return node.predicate; } \
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SPECIALIZE_TYPE_TRAITS_END()
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