bundles/org.simantics.spreadsheet.graph/src/org/simantics/spreadsheet/graph/formula/IsErrorFormulaFunction.java

   1 package org.simantics.spreadsheet.graph.formula;
   2
   3 import org.simantics.spreadsheet.graph.CellFormulaFunction;
   4 import org.simantics.spreadsheet.graph.CellValueVisitor;
   5 import org.simantics.spreadsheet.graph.parser.ast.AstArgList;
   6
   7 public class IsErrorFormulaFunction implements CellFormulaFunction<Object>{
   8
   9         @Override
  10     public Object evaluate(CellValueVisitor visitor, AstArgList args) {
  11
  12         if (args.values.size() != 1) throw new IllegalStateException();
  13
  14         Object condition = args.values.get(0).accept(visitor);
  15         if(condition instanceof String){
  16                 FormulaError2 error = FormulaError2.forString((String)condition);
  17                 return (error!=null);
  18         }
  19         return false;
  20     }
  21 }