@Override
public List<Target> getLabelListAttr(
QueryExpression caller, Target target, String attrName, String errorMsgPrefix)
throws QueryException {
Preconditions.checkArgument(target instanceof Rule);
List<Target> result = new ArrayList<>();
Rule rule = (Rule) target;
AggregatingAttributeMapper attrMap = AggregatingAttributeMapper.of(rule);
Type<?> attrType = attrMap.getAttributeType(attrName);
if (attrType == null) {
// Return an empty list if the attribute isn't defined for this rule.
return ImmutableList.of();
}
for (Label label : attrMap.getReachableLabels(attrName, false)) {
try {
result.add(queryEnvironment.getTarget(label));
} catch (TargetNotFoundException e) {
queryEnvironment.reportBuildFileError(caller, errorMsgPrefix + e.getMessage());
}
}
return result;
}
// CAUTION: keep in sync with ConfiguredTargetFactory#convertVisibility()
private void convertVisibility(
ImmutableSet.Builder<QueryVisibility<Target>> packageSpecifications, Target target)
throws QueryException {
RuleVisibility ruleVisibility = target.getVisibility();
if (ruleVisibility instanceof ConstantRuleVisibility) {
if (((ConstantRuleVisibility) ruleVisibility).isPubliclyVisible()) {
packageSpecifications.add(QueryVisibility.<Target>everything());
}
return;
} else if (ruleVisibility instanceof PackageGroupsRuleVisibility) {
PackageGroupsRuleVisibility packageGroupsVisibility =
(PackageGroupsRuleVisibility) ruleVisibility;
for (Label groupLabel : packageGroupsVisibility.getPackageGroups()) {
try {
convertGroupVisibility(
(PackageGroup) queryEnvironment.getTarget(groupLabel), packageSpecifications);
} catch (TargetNotFoundException e) {
throw new QueryException(e.getMessage());
}
}
for (PackageSpecification spec : packageGroupsVisibility.getDirectPackages()) {
packageSpecifications.add(new BlazeQueryVisibility(spec));
}
return;
} else {
throw new IllegalStateException("unknown visibility: " + ruleVisibility.getClass());
}
}