static void queryExpandFilename(StringBuffer & out, IHqlExpression * expr)
{
if (expr)
{
OwnedHqlExpr folded = foldHqlExpression(expr);
if (folded->queryValue())
folded->queryValue()->generateECL(out.append('\n'));
}
}
CChildLimitedDatasetColumnInfo::CChildLimitedDatasetColumnInfo(CContainerInfo * _container, CMemberInfo * _prior, IHqlExpression * _column, RecordOffsetMap & map, unsigned defaultMaxRecordSize) : CColumnInfo(_container, _prior, _column)
{
IHqlExpression * count = column->queryAttribute(countAtom);
if (count)
countField.setown(foldHqlExpression(column->queryAttribute(countAtom)->queryChild(0)));
else
{
IHqlExpression * size = column->queryAttribute(sizeofAtom);
if (size)
sizeField.setown(foldHqlExpression(size->queryChild(0)));
else
countField.setown(createConstantOne());
}
if (countField)
countField.setown(ensureExprType(countField, sizetType));
if (sizeField)
sizeField.setown(ensureExprType(sizeField, sizetType));
ColumnToOffsetMap * offsetMap = map.queryMapping(column->queryRecord(), defaultMaxRecordSize);
maxChildSize = offsetMap->getMaxSize();
fixedChildSize = offsetMap->isFixedWidth() ? maxChildSize : UNKNOWN_LENGTH;
}
ForEachChild(i, record)
{
IHqlExpression * cur = record->queryChild(i);
switch (cur->getOperator())
{
case no_record:
expandFieldNames(errorProcessor, out, cur, prefix, sep, formatFunc);
break;
case no_ifblock:
expandFieldNames(errorProcessor, out, cur->queryChild(1), prefix, sep, formatFunc);
break;
case no_field:
{
StringBuffer lowerName;
lowerName.append(cur->queryName()).toLowerCase();
if (formatFunc)
{
HqlExprArray args;
args.append(*createConstant(lowerName.str()));
OwnedHqlExpr bound = createBoundFunction(NULL, formatFunc, args, NULL, true);
OwnedHqlExpr folded = foldHqlExpression(errorProcessor, bound, NULL, HFOthrowerror|HFOfoldimpure|HFOforcefold);
assertex(folded->queryValue());
lowerName.clear();
getStringValue(lowerName, folded);
}
switch (cur->queryType()->getTypeCode())
{
case type_record:
case type_row:
{
unsigned len = prefix.length();
prefix.append(lowerName).append(".");
expandFieldNames(errorProcessor, out, cur->queryRecord(), prefix, sep, formatFunc);
prefix.setLength(len);
break;
}
default:
{
if (out.length())
out.append(sep);
out.append(prefix).append(lowerName);
break;
}
}
break;
}
}
}