IHqlExpression* HqlGram::processAbstractDataset(IHqlExpression* _expr, IHqlExpression* formal, IHqlExpression* actual, IHqlExpression * mapping, const attribute& errpos, bool errorIfNotFound, bool & hadError)
{
LinkedHqlExpr transformed = _expr;
IHqlExpression* formalRecord = formal->queryRecord();
IHqlExpression* actualRecord = actual->queryRecord();
assertex(formalRecord && actualRecord);
hadError = false;
IHqlSimpleScope *actualScope = actualRecord->querySimpleScope();
unsigned numChildren = formalRecord->numChildren();
for (unsigned idx = 0; idx < numChildren; idx++)
{
IHqlExpression* kid = formalRecord->queryChild(idx);
if ((kid->getOperator() == no_ifblock) || kid->isAttribute())
continue;
IIdAtom * name = kid->queryId();
IIdAtom * mapto = fieldMapTo(mapping, name);
OwnedHqlExpr match = actualScope->lookupSymbol(mapto);
if (match)
{
if (!kid->queryType()->assignableFrom(match->queryType()))
{
StringBuffer fromType, toType;
getFriendlyTypeStr(kid,fromType);
getFriendlyTypeStr(match,toType);
reportError(ERR_DSPARAM_TYPEMISMATCH, errpos, "Can not mapping type %s(field '%s') to %s(field '%s')",
fromType.str(), str(kid->queryName()), toType.str(), str(match->queryName()));
hadError = true;
}
//MORE: This should really be mapped in a single go
if (transformed)
transformed.setown(bindField(transformed, kid, match));
}
else if (errorIfNotFound)
{
reportError(ERR_DSPARM_MISSINGFIELD,errpos,"Dataset %s has no field named '%s'", str(actual->queryName()), str(mapto));
hadError = true;
}
}
return transformed.getClear();
}
void LogicalGraphCreator::createGraphActivity(IHqlExpression * expr)
{
LogicalGraphInfo * extra = queryExtra(expr);
if (extra->globalId && !inSubQuery())
{
extra->id = extra->globalId;
return;
}
//First generate children...
//MORE: may want to do inputs first and dependents afterwards.
IAtom * dependencyKind = dependencyAtom;
unsigned first = getFirstActivityArgument(expr);
unsigned last = first + getNumActivityArguments(expr);
node_operator op = expr->getOperator();
HqlExprArray inputs, dependents;
bool defaultInputs = true;
switch (op)
{
case no_setresult:
case no_map:
last = first;
dependencyKind = NULL;
break;
case no_select:
if (!isNewSelector(expr))
{
last = first;
}
break;
case no_addfiles:
expandUnnamedFunnel(inputs, expr->queryBody());
defaultInputs = false;
break;
case no_colon:
{
if (!isWorkflowExpanded(expr))
defaultInputs = false;
gatherWorkflowActivities(expr, dependents);
inputs.append(*LINK(expr->queryChild(0)));
defaultInputs = false;
break;
}
case no_forcelocal:
case no_forcenolocal:
case no_allnodes:
case no_thisnode:
{
IHqlExpression * child = expr->queryChild(0);
createSubGraphActivity(child);
addDependent(dependents, child);
defaultInputs = false;
break;
}
}
if (defaultInputs)
{
ForEachChild(i, expr)
{
IHqlExpression * cur = expr->queryChild(i);
if ((i >= first && i < last) && !cur->isAttribute())
inputs.append(*LINK(cur));
else if (includeChildInDependents(expr, i))
gatherGraphActivities(cur, dependents);
}
}
