Type operator| ( const Type& t1, const Type& t2)
{
SimpleType *st1, *st2;
TableType *tt1, *tt2;
TupletType *nt1, *nt2;
if ( (st1 = isSimpleType(t1)) && (st2 = isSimpleType(t2)) ) {
return makeSimpleType( st1->nature()|st2->nature(),
st1->variability()|st2->variability(),
st1->computability()|st2->computability(),
st1->vectorability()|st2->vectorability(),
st1->boolean()|st2->boolean(),
reunion(st1->getInterval(), st2->getInterval())
);
} else if ( (tt1 = isTableType(t1)) && (tt2 = isTableType(t2)) ) {
return makeTableType( tt1->content() | tt2->content() );
} else if ( (nt1 = isTupletType(t1)) && (nt2 = isTupletType(t2)) ) {
vector<Type> v;
int n = min(nt1->arity(), nt2->arity());
for (int i=0; i<n; i++) { v.push_back( (*nt1)[i] | (*nt2)[i]); }
return new TupletType( v );
} else {
stringstream error;
error << "Error : trying to combine incompatible types, " << t1 << " and " << t2 << endl;
throw faustexception(error.str());
}
}
DataSourceDatasetItem::DataSourceDatasetItem(const char * _name, const char * _xpath, IHqlExpression * expr) : DataSourceMetaItem(FVFFdataset, NULL, NULL, NULL), record(expr->queryRecord(), 0, true, false, false)
{
type.setown(makeTableType(NULL, NULL, NULL, NULL));
name.set(_name);
xpath.set(_xpath);
splitXmlTagNamesFromXPath(_xpath, record.tagname, &tagname);
if (!record.tagname.length())
record.tagname.set("Row");
}
DataSourceDatasetItem::DataSourceDatasetItem(unsigned flags, MemoryBuffer & in) : DataSourceMetaItem(FVFFdataset, NULL, NULL, NULL), record(in)
{
type.setown(makeTableType(NULL, NULL, NULL, NULL));
in.read(name);
}
DataSourceDatasetItem::DataSourceDatasetItem(const char * _name, const char * _xpath, IHqlExpression * expr) : DataSourceMetaItem(FVFFdataset, NULL, NULL, NULL), record(expr->queryRecord(), 0, true, false, false)
{
type.setown(makeTableType(NULL, NULL, NULL, NULL));
name.set(_name);
xpath.set(_xpath);
}
