public override object VisitBoolean_comparison_expression([NotNull] KoraliumParser.Boolean_comparison_expressionContext context)
{
var typeNode = context.boolean_comparison_type();
if (typeNode == null)
{
throw new SqlParserException("Boolean comparison without any type");
}
var comparisionOperation = typeNode.GetText();
BooleanComparisonType booleanComparisonType = BooleanComparisonType.Equals;
switch (comparisionOperation)
{
case "=":
case "==":
booleanComparisonType = BooleanComparisonType.Equals;
break;
case ">":
booleanComparisonType = BooleanComparisonType.GreaterThan;
break;
case "<":
booleanComparisonType = BooleanComparisonType.LessThan;
break;
case ">=":
case "!<":
booleanComparisonType = BooleanComparisonType.GreaterThanOrEqualTo;
break;
case "!=":
case "<>":
booleanComparisonType = BooleanComparisonType.NotEqualTo;
break;
case "<=":
case "!>":
booleanComparisonType = BooleanComparisonType.LessThanOrEqualTo;
break;
}
return(new BooleanComparisonExpression()
{
Left = Visit(context.left) as ScalarExpression,
Right = Visit(context.right) as ScalarExpression,
Type = booleanComparisonType
});
}
/// <summary>
/// Exit a parse tree produced by <see cref="KoraliumParser.boolean_comparison_expression"/>.
/// <para>The default implementation does nothing.</para>
/// </summary>
/// <param name="context">The parse tree.</param>
public virtual void ExitBoolean_comparison_expression([NotNull] KoraliumParser.Boolean_comparison_expressionContext context)
{
}
/// <summary>
/// Visit a parse tree produced by <see cref="KoraliumParser.boolean_comparison_expression"/>.
/// <para>
/// The default implementation returns the result of calling <see cref="AbstractParseTreeVisitor{Result}.VisitChildren(IRuleNode)"/>
/// on <paramref name="context"/>.
/// </para>
/// </summary>
/// <param name="context">The parse tree.</param>
/// <return>The visitor result.</return>
public virtual Result VisitBoolean_comparison_expression([NotNull] KoraliumParser.Boolean_comparison_expressionContext context)
{
return(VisitChildren(context));
}
