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#ifndef SRC_TINT_LANG_WGSL_AST_NODE_ID_H_
#define SRC_TINT_LANG_WGSL_AST_NODE_ID_H_

#include <stddef.h>
#include <stdint.h>

namespace tint::ast {

/// NodeID is a unique node identifier for a given Program.
/// NodeIDs are sequentially allocated, starting at 0.
struct NodeID {
    /// Equality operator
    /// @param other the other NodeID
    /// @returns true if the NodeIDs are the same
    bool operator==(NodeID other) const { return value == other.value; }

    /// Less-than comparison operator
    /// @param other the other NodeID
    /// @returns true if the other comes before this node
    bool operator<(NodeID other) const { return value < other.value; }

    /// The numerical value for the node identifier
    uint32_t value = 0;
};

}  // namespace tint::ast

#endif  // SRC_TINT_LANG_WGSL_AST_NODE_ID_H_