public override SqlObject VisitTop_spec([NotNull] sqlParser.Top_specContext context)
{
Contract.Requires(context != null);
Number64 topCount = CstToAstVisitor.GetNumber64ValueFromNode(context.NUMERIC_LITERAL());
return(SqlTopSpec.Create(SqlNumberLiteral.Create(topCount)));
}
public QueryUnderConstruction AddTopSpec(SqlTopSpec topSpec, HashSet <ParameterExpression> inScope, Collection currentCollection)
{
QueryUnderConstruction result = this;
if (result.topSpec != null)
{
// Set the topSpec to the one with minimum Count value
result.topSpec = (this.topSpec.Count < topSpec.Count) ? this.topSpec : topSpec;
}
else
{
result.topSpec = topSpec;
}
if (result.topSpec.Count < 0)
{
result.topSpec = SqlTopSpec.Create(0);
}
return(result);
}
public override SqlObject VisitTop_spec([NotNull] sqlParser.Top_specContext context)
{
Contract.Requires(context != null);
SqlTopSpec sqlTopSpec;
if (context.NUMERIC_LITERAL() != null)
{
Number64 topCount = CstToAstVisitor.GetNumber64ValueFromNode(context.NUMERIC_LITERAL());
sqlTopSpec = SqlTopSpec.Create(SqlNumberLiteral.Create(topCount));
}
else if (context.PARAMETER() != null)
{
sqlTopSpec = SqlTopSpec.Create(SqlParameter.Create(context.PARAMETER().GetText()));
}
else
{
throw new InvalidOperationException();
}
return(sqlTopSpec);
}
public override SqlObject Visit(SqlTopSpec sqlTopSpec)
{
return(SqlTopSpec.Create(SqlNumberLiteral.Create(0)));
}