private ExpressionValue ParseComparisonNode(ComparisonExpressionNode comparisonExpressionNode)
{
ExpressionValue leftExpressionValue = ParseExpressionNode(comparisonExpressionNode.Left);
ExpressionValue rightExpressionValue = ParseExpressionNode(comparisonExpressionNode.Right);
ExpressionOperator expressionOperator = ExpressionOperator.Undefined;
switch (comparisonExpressionNode.Operator)
{
case ComparisonOperator.Equal:
expressionOperator = ExpressionOperator.Equals;
break;
case ComparisonOperator.GreaterEqual:
expressionOperator = ExpressionOperator.GreaterEquals;
break;
case ComparisonOperator.GreaterThan:
expressionOperator = ExpressionOperator.GreaterThan;
break;
case ComparisonOperator.LessEqual:
expressionOperator = ExpressionOperator.LessEquals;
break;
case ComparisonOperator.LessThan:
expressionOperator = ExpressionOperator.LessThan;
break;
default:
throw new NotImplementedException();
}
return(leftExpressionValue.Compare(rightExpressionValue, expressionOperator));
}