SystemCallSetFixed.cpp

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#ifndef _MADARA_NO_KARL_
 
#include "madara/expression/LeafNode.h"
#include "madara/expression/SystemCallSetFixed.h"
#include "madara/knowledge/ThreadSafeContext.h"
#include "madara/expression/Visitor.h"
 
madara::expression::SystemCallSetFixed::SystemCallSetFixed(
    madara::knowledge::ThreadSafeContext& context, const ComponentNodes& nodes)
  : SystemCallNode(context, nodes)
{
}
 
// Dtor
madara::expression::SystemCallSetFixed::~SystemCallSetFixed(void) {}
 
madara::knowledge::KnowledgeRecord madara::expression::SystemCallSetFixed::item(
    void) const
{
  return madara::knowledge::KnowledgeRecord(nodes_.size());
}
 
madara::knowledge::KnowledgeRecord
madara::expression::SystemCallSetFixed::prune(bool& can_change)
{
  // this node never changes, but we may be able to prune what's inside
  can_change = true;
 
  madara::knowledge::KnowledgeRecord result;
 
  // this node should never have arguments
  if (nodes_.size() > 0)
  {
    madara_logger_ptr_log(logger_, logger::LOG_MINOR,
        "madara::expression::SystemCallSetFixed: "
        "SystemCallSetFixed:prune: no arguments should be supplied to "
        "#set_fixed(). Deleting arguments to reclaim memory.\n");
 
    // delete any arguments that the user specified
    for (ComponentNodes::iterator i = nodes_.begin(); i != nodes_.end(); ++i)
    {
      delete *i;
    }
 
    nodes_.clear();
  }
 
  return result;
}
 
madara::knowledge::KnowledgeRecord
madara::expression::SystemCallSetFixed::evaluate(
    const madara::knowledge::KnowledgeUpdateSettings& /*settings*/)
{
  knowledge::KnowledgeRecord return_value;
 
  madara_logger_ptr_log(logger_, logger::LOG_MINOR,
      "madara::expression::SystemCallSetFixed: "
      "System call set_fixed is setting double output format to std::fixed.\n");
 
  knowledge::KnowledgeRecord::set_fixed();
 
  return return_value;
}
 
// accept a visitor
void madara::expression::SystemCallSetFixed::accept(
    madara::expression::Visitor& visitor) const
{
  visitor.visit(*this);
}
 
#endif  // _MADARA_NO_KARL_