private bool InternalValidate(Expr expr, Query query, out object trace)
{
trace = null;
RelationGraph.AddNode(query);
var queryExpr = new AGQueryExpr(expr, query);
queryExpr.RetrieveRenderKnowledge();
if (queryExpr.RenderKnowledge == null)
{
return(false);
}
if (queryExpr.RenderKnowledge.Count == 0)
{
return(false);
}
var agEquationExpr = queryExpr.RenderKnowledge[0] as AGEquationExpr;
if (agEquationExpr == null)
{
return(false);
}
agEquationExpr.IsSelected = true;
agEquationExpr.GenerateSolvingTrace();
if (agEquationExpr.AutoTrace == null)
{
return(false);
}
trace = agEquationExpr.AutoTrace;
RelationGraph.DeleteNode(query);
return(true);
}
private bool UnEvalExprPatterns(object obj)
{
if (_cache.Count == 0)
{
return(false);
}
var shapeSymExpr = obj as AGShapeExpr;
if (shapeSymExpr != null)
{
return(RelationGraph.DeleteNode(shapeSymExpr.ShapeSymbol));
}
var termExpr = obj as AGPropertyExpr;
if (termExpr != null)
{
return(RelationGraph.DeleteNode(termExpr.Goal));
}
var queryExpr = obj as AGQueryExpr;
if (queryExpr != null)
{
return(RelationGraph.DeleteNode(queryExpr.QueryTag));
}
return(false);
}