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#ifndef SRC_TINT_LANG_WGSL_AST_CASE_SELECTOR_H_
#define SRC_TINT_LANG_WGSL_AST_CASE_SELECTOR_H_

#include <vector>

#include "src/tint/lang/wgsl/ast/block_statement.h"
#include "src/tint/lang/wgsl/ast/expression.h"

namespace tint::ast {

/// A case selector
class CaseSelector final : public Castable<CaseSelector, Node> {
  public:
    /// Constructor
    /// @param pid the identifier of the program that owns this node
    /// @param nid the unique node identifier
    /// @param src the source of this node
    /// @param expr the selector expression, |nullptr| for a `default` selector
    CaseSelector(GenerationID pid, NodeID nid, const Source& src, const Expression* expr = nullptr);

    /// Destructor
    ~CaseSelector() override;

    /// @returns true if this is a default statement
    bool IsDefault() const { return expr == nullptr; }

    /// Clones this node and all transitive child nodes using the `CloneContext` `ctx`.
    /// @param ctx the clone context
    /// @return the newly cloned node
    const CaseSelector* Clone(CloneContext& ctx) const override;

    /// The selector, nullptr for a default selector
    const Expression* const expr = nullptr;
};

}  // namespace tint::ast

#endif  // SRC_TINT_LANG_WGSL_AST_CASE_SELECTOR_H_