Method: LemonGraph::NodeMap#initialize

Defined in:

ext/lemongraph/node_map.cc

#initialize(graph, default_value = nil) ⇒ NodeMap #initialize(graph) {|node, nodemap| ... } ⇒ NodeMap

Returns a new node map related to graph.

If no block is given, default_value will be returned when a value is fetched for a node for which no value was set.

If a block is given, it will be called if needed to provide values for nodes for which no value was set, instead of returning default_value.

Overloads:

• #initialize(graph, default_value = nil) ⇒ NodeMap

  Parameters:

  • graph (Graph, Digraph) —

    the graph this node map is to be bound to

  • default_value (Object) (defaults to: nil) —

    the default value returned for nodes with no value.

• #initialize(graph) {|node, nodemap| ... } ⇒ NodeMap

  Parameters:

  • graph (Graph, Digraph) —

    the graph this node map is to be bound to

  Yield Parameters:

  • node (Graph::Node, Digraph::Node) —

    the node for which to provide a value

  • nodemap (NodeMap) —

    self

  Yield Returns:

  • (Object) —

    the default value returned for this node

# File 'ext/lemongraph/node_map.cc', line 702

VALUE lemongraph_nodemap_initialize(int argc, VALUE *argv, VALUE self)
{
  VALUE rbg; 
  VALUE dflt = Qnil;
  VALUE proc = Qnil;
  rb_scan_args(argc, argv, "11&", &rbg, &dflt, &proc);
  LemonGraph::NodeMap& nm = lemongraph_nodemap_rb2ref(self);
  nm.initialize(self, rbg, dflt, proc);
  return self;
}