chromium/third_party/blink/renderer/core/css/css_math_expression_node.h

/*
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#ifdef UNSAFE_BUFFERS_BUILD
// TODO(crbug.com/351564777): Remove this and convert code to safer constructs.
#pragma allow_unsafe_buffers
#endif

#ifndef THIRD_PARTY_BLINK_RENDERER_CORE_CSS_CSS_MATH_EXPRESSION_NODE_H_
#define THIRD_PARTY_BLINK_RENDERER_CORE_CSS_CSS_MATH_EXPRESSION_NODE_H_

#include <optional>

#include "base/check_op.h"
#include "base/containers/enum_set.h"
#include "base/dcheck_is_on.h"
#include "third_party/blink/renderer/core/core_export.h"
#include "third_party/blink/renderer/core/css/css_anchor_query_enums.h"
#include "third_party/blink/renderer/core/css/css_color_channel_map.h"
#include "third_party/blink/renderer/core/css/css_custom_ident_value.h"
#include "third_party/blink/renderer/core/css/css_identifier_value.h"
#include "third_party/blink/renderer/core/css/css_length_resolver.h"
#include "third_party/blink/renderer/core/css/css_math_operator.h"
#include "third_party/blink/renderer/core/css/css_primitive_value.h"
#include "third_party/blink/renderer/core/css/css_value.h"
#include "third_party/blink/renderer/core/css/parser/css_parser_token_range.h"
#include "third_party/blink/renderer/core/css_value_keywords.h"
#include "third_party/blink/renderer/core/dom/tree_scope.h"
#include "third_party/blink/renderer/core/layout/geometry/axis.h"
#include "third_party/blink/renderer/platform/geometry/calculation_value.h"
#include "third_party/blink/renderer/platform/wtf/forward.h"

namespace blink {

static const int kMaxExpressionDepth = …;

class CalculationExpressionNode;
class CSSNumericLiteralValue;
class CSSParserContext;
class TryTacticTransform;
class WritingDirectionMode;

// The order of this enum should not change since its elements are used as
// indices in the addSubtractResult matrix.
enum CalculationResultCategory { … };
CalculationResultCategorySet;

class CORE_EXPORT CSSMathExpressionNode
    : public GarbageCollected<CSSMathExpressionNode> { … };

class CORE_EXPORT CSSMathExpressionNumericLiteral final
    : public CSSMathExpressionNode { … };

template <>
struct DowncastTraits<CSSMathExpressionNumericLiteral> { … };

// Used for container name in container-progress().
// Will possibly be used in container name for container units function.
class CORE_EXPORT CSSMathExpressionIdentifierLiteral final
    : public CSSMathExpressionNode { … };

template <>
struct DowncastTraits<CSSMathExpressionIdentifierLiteral> { … };

// Used for representation of the keywords, e.g. `size` keyword
// and intrinsic size keywords in calc-size(). Some of the keywords can
// be resolved to double with CSSLengthResolver.
class CORE_EXPORT CSSMathExpressionKeywordLiteral final
    : public CSSMathExpressionNode { … };

template <>
struct DowncastTraits<CSSMathExpressionKeywordLiteral> { … };

class CORE_EXPORT CSSMathExpressionOperation final
    : public CSSMathExpressionNode { … };

template <>
struct DowncastTraits<CSSMathExpressionOperation> { … };

class CORE_EXPORT CSSMathExpressionContainerFeature final
    : public CSSMathExpressionNode { … };

template <>
struct DowncastTraits<CSSMathExpressionContainerFeature> { … };

// anchor() and anchor-size()
class CORE_EXPORT CSSMathExpressionAnchorQuery final
    : public CSSMathExpressionNode { … };

template <>
struct DowncastTraits<CSSMathExpressionAnchorQuery> { … };

}  // namespace blink

#endif  // THIRD_PARTY_BLINK_RENDERER_CORE_CSS_CSS_MATH_EXPRESSION_NODE_H_