public override void GenerateCode(CodeGeneration.CodeGenerator cg)
{
Label beginofwhile = cg.IlGenerator.DefineLabel();
EndofCicle = cg.IlGenerator.DefineLabel();
cg.IlGenerator.MarkLabel(beginofwhile);
ConditionExpression.GenerateCode(cg);
cg.IlGenerator.Emit(OpCodes.Brfalse, EndofCicle);
BodyExpression.GenerateCode(cg);
cg.IlGenerator.Emit(OpCodes.Br, beginofwhile);
cg.IlGenerator.MarkLabel(EndofCicle);
}