if(this.inProgress == false){\r
this.inProgress = true;\r
f.result = value.accept(visitor);\r
}\r
else f.result = FormulaError2.CIRCULAR_REF.getString();\r
}\r
if(this.inProgress == false){\r
this.inProgress = true;\r
f.result = value.accept(visitor);\r
}\r
else f.result = FormulaError2.CIRCULAR_REF.getString();\r
}\r