public StatementViewModel(string statement, SimpleAcyclicDirectedGraph <string> variableGraph, IVariableEvaluator parentEvaluator)
{
Statement = statement;
var graphVariableEvaluator = new GraphBuilderVariableEvaluator(variableGraph, null);
_engine = new EvaluationEngine(new IVariableEvaluator[] { graphVariableEvaluator, parentEvaluator }, null);
ParseStatement(statement);
graphVariableEvaluator.AssociateVariable(_id);
RefreshResult();
}
public CalculatorViewModel()
{
_variableGraph = new SimpleAcyclicDirectedGraph <string>();
_statements = new List <StatementViewModel <decimal> >();
Statements = new ReadOnlyCollection <StatementViewModel <decimal> >(_statements);
}
public GraphBuilderVariableEvaluator(SimpleAcyclicDirectedGraph <string> graph, string associatedVariable)
{
_graph = graph;
_associatedVariable = associatedVariable;
}