public override string LookupPrefix(string ns)
{
return(AmlToModelWriter.PrefixFromNamespace(ns));
}
private static IExpression HandleOperator(IExpression op, List <IExpression> output, IServerContext context)
{
if (op is LikeOperator like)
{
like.Right = output.Pop();
like.Left = output.Pop();
if (like.Right is StringLiteral str)
{
like.Right = PatternParser.SqlServer.Parse(str.Value);
}
}
else if (op is BinaryOperator binOp)
{
binOp.Right = output.Pop();
binOp.Left = output.Pop();
if (binOp.Left is PropertyReference prop && binOp.Right is StringLiteral str)
{
binOp.Right = AmlToModelWriter.NormalizeLiteral(prop, str.Value, context, AmlToModelWriter.AllowedTypes.SqlStrings);
}
}
else if (op is UnaryOperator unaryOp)
{
unaryOp.Arg = output.Pop();
}
else if (op is BetweenOperator between)
{
if (!(output.Pop() is AndOperator andOp))
{
throw new NotSupportedException();
}
between.Min = andOp.Left;
between.Max = andOp.Right;
between.Left = output.Pop();
if (between.Left is PropertyReference prop)
{
if (between.Min is StringLiteral minStr)
{
between.Min = AmlToModelWriter.NormalizeLiteral(prop, minStr.Value, context, AmlToModelWriter.AllowedTypes.SqlStrings);
}
if (between.Max is StringLiteral maxStr)
{
between.Max = AmlToModelWriter.NormalizeLiteral(prop, maxStr.Value, context, AmlToModelWriter.AllowedTypes.SqlStrings);
}
}
}
else if (op is IsOperator isOp)
{
var right = output.Pop();
isOp.Left = output.Pop();
if (right is NotOperator notNullOp && notNullOp.Arg is NullLiteral)
{
isOp.Right = IsOperand.NotNull;
}
else if (right is NullLiteral)
{
isOp.Right = IsOperand.Null;
}
else
{
throw new NotSupportedException();
}
}