public Expr(string name, ExprType type)
{
Name = name;
Type = type;
_graph = new Graph();
_graph.AddVertex(this);
}
private Graph ConcatGraphs(params Graph[] graphs)
{
var result = new Graph();
for (int i = 0; i < graphs.Length; i++)
{
result.AddVertexRange(graphs[i].Vertices);
result.AddEdgeRange(graphs[i].Edges);
}
result.AddVertex(this);
foreach (var sink in graphs.SelectMany(x => x.Sinks()))
{
result.AddEdge(new Edge <Expr>(sink, this));
}
return(result);
}
private Expr(string name, Expr operand, ExprType type)
{
Name = name;
Type = type;
_graph = ConcatGraphs(operand._graph);
}
private Expr(Expr left, Expr right, ExprType type)
{
Type = type;
_graph = ConcatGraphs(left._graph, right._graph);
}
