execution_close_scope.hpp

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#pragma once
 
#include <cstdint>
#include <variant>
 
namespace pineforge::execution {
inline namespace close_scope_v1 {
 
struct Book {};
 
// Run-local opening provenance, not a unique individual fill-lot identity.
// The trusted caller owns run identity; settlement checks the current cycle
// and selects every surviving physical fragment of this incarnation.
struct OpeningExposure {
    std::uint64_t incarnation = 0;
    std::int64_t cycle = 0;
};
 
using CloseScope = std::variant<Book, OpeningExposure>;
 
static_assert(std::variant_size_v<CloseScope> == 2,
              "CloseScope is Book|OpeningExposure; do not add alternatives");
 
} // inline namespace close_scope_v1
} // namespace pineforge::execution