Function Invoke

eval/eval/function_step.cc:182–200

};

inline absl::StatusOr<Value> Invoke(
    const cel::FunctionOverloadReference& overload, int64_t expr_id,
    absl::Span<const cel::Value> args, ExecutionFrameBase& frame) {
  cel::Function::InvokeContext context(frame.descriptor_pool(),
                                       frame.message_factory(), frame.arena());
  if (overload.descriptor.is_contextual()) {
    context.set_embedder_context(frame.embedder_context());
  }

  CEL_ASSIGN_OR_RETURN(Value result,
                       overload.implementation.Invoke(args, context));

  if (frame.unknown_function_results_enabled() &&
      IsUnknownFunctionResultError(result)) {
    return frame.attribute_utility().CreateUnknownSet(overload.descriptor,
                                                      expr_id, args);
  }
  return result;
}

Value NoOverloadResult(absl::string_view name,
                       absl::Span<const cel::Value> args, bool receiver_style,