6 #ifndef _MADARA_NO_KARL_ 39 for (ComponentNodes::iterator i =
nodes_.begin ();
40 i !=
nodes_.end (); ++i, ++j)
42 bool value_changes =
false;
44 value = (*i)->prune (value_changes);
45 if (!value_changes && dynamic_cast <LeafNode *> (*i) == 0)
54 return_value += value;
56 can_change = can_change || value_changes;
63 "KARL COMPILE ERROR (+): " 64 "Add should have a left and right-hand side argument.\n");
67 "KARL COMPILE ERROR (+): " 68 "Add should have a left and right-hand side argument.\n");
84 for (ComponentNodes::iterator i =
nodes_.begin ();
85 i !=
nodes_.end (); ++i, ++j)
92 return_value += value;
103 visitor.
visit (*
this);
106 #endif // _MADARA_NO_KARL_ This class encapsulates an entry in a KnowledgeBase.
virtual madara::knowledge::KnowledgeRecord prune(bool &can_change)
Prunes the expression tree of unnecessary nodes.
madara::knowledge::KnowledgeRecord KnowledgeRecord
std::deque< ComponentNode * > ComponentNodes
a vector of Component Nodes
virtual madara::knowledge::KnowledgeRecord item(void) const
Returns the printable character of the node.
logger::Logger * logger_
handle the context
Defines a node that contains a madara::knowledge::KnowledgeRecord::Integer value. ...
Provides knowledge logging services to files and terminals.
A multi-threaded logger for logging to one or more destinations.
#define madara_logger_ptr_log(logger, level,...)
Fast version of the madara::logger::log method for Logger pointers.
Abstract base class for all visitors to all classes that derive from ComponentNode.
virtual madara::knowledge::KnowledgeRecord evaluate(const madara::knowledge::KnowledgeUpdateSettings &settings)
Evaluates the expression tree.
An exception for unrecoverable KaRL compilation issues.
CompositeAddNode(logger::Logger &logger, const ComponentNodes &nodes)
Constructor.
Settings for applying knowledge updates.
virtual void visit(const LeafNode &node)=0
Visit a LeafNode.
Copyright (c) 2015 Carnegie Mellon University.
virtual void accept(Visitor &visitor) const
Accepts a visitor subclassed from the Visitor class.