IfErrorFormulaFunction.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 IfErrorFormulaFunction implements CellFormulaFunction<Object> {
   8
   9         @Override
  10     public Object evaluate(CellValueVisitor visitor, AstArgList args) {
  11
  12         if (args.values.size() != 2) throw new IllegalStateException();
  13
  14         Object condition = args.values.get(0).accept(visitor);
  15         FormulaError2 error = FormulaError2.forObject(condition);
  16         if(error!=null) return error.getString();
  17         else return condition;
  18     }
  19 }