public override SqlExpression VisitTrimFunction(PlSqlParser.TrimFunctionContext context)
{
var arg1 = SqlParseExpression.Build(Context, context.concatenationWrapper());
var part = "both";
if (context.LEADING() != null)
{
part = "leading";
}
else if (context.TRAILING() != null)
{
part = "trailing";
}
else if (context.BOTH() != null)
{
part = "both";
}
var toTrim = " ";
if (context.quoted_string() != null)
{
toTrim = SqlParseInputString.AsNotQuoted(context.quoted_string());
}
var arg2 = SqlExpression.Constant(SqlObject.String(part));
var arg3 = SqlExpression.Constant(SqlObject.String(toTrim));
return(SqlExpression.Function("SQL_TRIM", new SqlExpression[] { arg1, arg2, arg3 }));
}
public override SqlExpression VisitTimeStampFunction(PlSqlParser.TimeStampFunctionContext context)
{
SqlExpression arg;
if (context.bind_variable() != null)
{
arg = SqlExpression.Variable(SqlParseUtil.Name.Variable(context.bind_variable()));
}
else if (context.argString != null)
{
arg = SqlExpression.Constant(SqlObject.String(SqlParseInputString.AsNotQuoted(context.argString)));
}
else
{
throw new ParseCanceledException("Invalid argument in a TIMESTAMP implicit function");
}
SqlExpression tzArg = null;
if (context.tzString != null)
{
tzArg = SqlExpression.Constant(SqlObject.String(SqlParseInputString.AsNotQuoted(context.tzString)));
}
var args = tzArg != null
? new SqlExpression[] { arg, tzArg }
: new SqlExpression[] { arg };
return(SqlExpression.Function("TOTIMESTAMP", args));
}
public override SqlExpression VisitDateImplicitConvert(PlSqlParser.DateImplicitConvertContext context)
{
var s = SqlParseInputString.AsNotQuoted(context.quoted_string());
return(SqlExpression.Function("CAST",
new SqlExpression[] {
SqlExpression.Constant(SqlObject.String(s)),
SqlExpression.Constant(SqlObject.String("DATE"))
}));
}
public override SqlExpression VisitConstantString(PlSqlParser.ConstantStringContext context)
{
var value = SqlParseInputString.AsNotQuoted(context.quoted_string());
return(SqlExpression.Constant(SqlObject.String(value)));
}