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Add CelMapClone. #2292

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Add CelMapClone. #2292

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6 changes: 6 additions & 0 deletions eval/public/cel_value_clone.cc
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Expand Up @@ -163,4 +163,10 @@ absl::StatusOr<CelValue> CelValueClone(google::protobuf::Arena* arena, CelValue
return in.Visit<absl::StatusOr<CelValue>>(CloneVisitor{.arena = arena});
}

absl::StatusOr<const CelMap*> CelMapClone(google::protobuf::Arena* arena,
const CelMap* in) {
CEL_ASSIGN_OR_RETURN(CelValue out, CloneVisitor{.arena = arena}(in));
return out.MapOrDie(); // Crash OK
}

} // namespace google::api::expr::runtime
6 changes: 6 additions & 0 deletions eval/public/cel_value_clone.h
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Expand Up @@ -35,6 +35,12 @@ inline absl::StatusOr<CelValue> CelValueClone(google::protobuf::Arena* arena,
return CelValueClone(arena, *in);
}

// Clones (deep copy) a CelMap such that the resulting CelMap has a lifetime
// tied to the given arena. The container implementations for the output are not
// guaranteed to be the same as the input.
absl::StatusOr<const CelMap*> CelMapClone(google::protobuf::Arena* arena,
const CelMap* in);

} // namespace google::api::expr::runtime

#endif // THIRD_PARTY_CEL_CPP_EVAL_PUBLIC_CEL_VALUE_CLONE_H_
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