public override IExpressionNode VisitComparisonExpression([NotNull] QLanguageParser.ComparisonExpressionContext context)
{
// If ( expression )
var comparisonoContext = context.comparisonExpression();
if (comparisonoContext != null)
{
return(VisitComparisonExpression(comparisonoContext));
}
var left = VisitComparisonOperand(context.LEFT);
var opr = ComparisonExpressionNode.ParseComparisonOperator(context.OPR.GetText());
var right = VisitComparisonOperand(context.RIGHT);
return(new ComparisonExpressionNode(Location.FromContext(context), left, opr, right));
}
public override IExpressionNode VisitComparisonExpression(ComparisonExpressionContext context)
{
if (context == null)
{
throw new ArgumentNullException("Context can't be null");
}
var comparisonoContext = context.comparisonExpression();
if (comparisonoContext != null)
{
return(VisitComparisonExpression(comparisonoContext));
}
var left = VisitComparisonOperand(context.LEFT);
var opr = ComparisonExpressionNode.ParseComparisonOperator(context.OPR.GetText());
var right = VisitComparisonOperand(context.RIGHT);
return(new ComparisonExpressionNode(Location.FromContext(context), left, opr, right));
}
public void ParseComparisonOperatorLTTest()
{
var result = ComparisonExpressionNode.ParseComparisonOperator("<");
Assert.AreEqual(ComparisonOperator.LT, result);
}
public void ParseComparisonOperatorGETest()
{
var result = ComparisonExpressionNode.ParseComparisonOperator(">=");
Assert.AreEqual(ComparisonOperator.GE, result);
}
public void ParseComparisonOperatorInvalidInput()
{
ComparisonExpressionNode.ParseComparisonOperator("-");
}
public void ParseComparisonOperatorGTTest()
{
var result = ComparisonExpressionNode.ParseComparisonOperator(">");
Assert.AreEqual(ComparisonOperator.GreaterThan, result);
}