// Copyright 2015 The Chromium Authors. All rights reserved.
// Copyright (C) 2016-2020 Apple Inc. All rights reserved.
//
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// modification, are permitted provided that the following conditions are
// met:
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// notice, this list of conditions and the following disclaimer.
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// in the documentation and/or other materials provided with the
// distribution.
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#pragma once
#include "CSSValue.h"
namespace WebCore {
class CSSParserTokenRange;
class CSSVariableData;
namespace Style {
class BuilderState;
}
class CSSVariableReferenceValue : public CSSValue {
public:
static Ref<CSSVariableReferenceValue> create(const CSSParserTokenRange&);
bool equals(const CSSVariableReferenceValue&) const;
String customCSSText() const;
RefPtr<CSSVariableData> resolveVariableReferences(Style::BuilderState&) const;
// The maximum number of tokens that may be produced by a var()
// reference or var() fallback value.
// https://drafts.csswg.org/css-variables/#long-variables
static constexpr size_t maxSubstitutionTokens = 65536;
private:
explicit CSSVariableReferenceValue(Ref<CSSVariableData>&&);
Ref<CSSVariableData> m_data;
mutable String m_stringValue;
};
} // namespace WebCore
SPECIALIZE_TYPE_TRAITS_CSS_VALUE(CSSVariableReferenceValue, isVariableReferenceValue())
