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#ifndef SRC_TINT_LANG_WGSL_AST_EXTENSION_H_
#define SRC_TINT_LANG_WGSL_AST_EXTENSION_H_

#include "src/tint/lang/wgsl/ast/node.h"
#include "src/tint/lang/wgsl/extension.h"

namespace tint::ast {

/// An extension used in an "enable" directive. Example:
/// ```
///   enable f16;
/// ```
class Extension final : public Castable<Extension, Node> {
  public:
    /// Create a extension
    /// @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 ext the extension
    Extension(GenerationID pid, NodeID nid, const Source& src, wgsl::Extension ext);

    /// Destructor
    ~Extension() override;

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

    /// The extension name
    const wgsl::Extension name;
};

}  // namespace tint::ast

#endif  // SRC_TINT_LANG_WGSL_AST_EXTENSION_H_