private IEvaluatedType evaluateType(AbstractTypeGoal goal, int time, List list) {
Set typeSet = new HashSet();
for (Iterator iterator = list.iterator(); iterator.hasNext(); ) {
IConfigurationElement element = (IConfigurationElement) iterator.next();
ITypeInferencer ti;
try {
ti = (ITypeInferencer) element.createExecutableExtension("evaluator"); // $NON-NLS-1$
} catch (CoreException e) {
e.printStackTrace();
continue;
}
// ITypeInferencer ti = (ITypeInferencer)
// iterator.next();
IEvaluatedType type = ti.evaluateType(goal, time);
if (type != null && !(type instanceof UnknownType)) {
if (type instanceof AmbiguousType) {
flattenTypes((AmbiguousType) type, typeSet);
} else {
typeSet.add(type);
}
}
}
if ((typeSet.size() > 1) && (goal.getContext() instanceof BasicContext)) {
reduceTypes((BasicContext) goal.getContext(), typeSet);
}
if (typeSet.size() == 1) {
return (IEvaluatedType) typeSet.iterator().next();
} else if (typeSet.size() > 1) {
return new AmbiguousType(
(IEvaluatedType[]) typeSet.toArray(new IEvaluatedType[typeSet.size()]));
} else {
return null;
}
}
public IEvaluatedType evaluateType(AbstractTypeGoal goal, int time) {
String nature = goal.getContext().getLangNature();
List list = (List) evaluatorsByNatures.get(nature);
if (list != null) {
final List<AbstractTypeGoal> threadGoals = goals.get();
if (threadGoals.size() > 32) {
return null;
}
threadGoals.add(goal);
try {
return evaluateType(goal, time, list);
} finally {
threadGoals.remove(threadGoals.size() - 1);
}
}
return null;
}