* The given project is assumed to be the handle of this info.
* This name lookup first looks in the given working copies.
*/
NameLookup newNameLookup(JavaProject project, ICompilationUnit[] workingCopies) {
ProjectCache cache = getProjectCache(project);
HashtableOfArrayToObject allPkgFragmentsCache = cache.allPkgFragmentsCache;
if (allPkgFragmentsCache == null) {
HashMap rootInfos = JavaModelManager.getJavaModelManager().deltaState.roots;
IPackageFragmentRoot[] allRoots = cache.allPkgFragmentRootsCache;
int length = allRoots.length;
allPkgFragmentsCache = new HashtableOfArrayToObject();
for (int i = 0; i < length; i++) {
IPackageFragmentRoot root = allRoots[i];
DeltaProcessor.RootInfo rootInfo = (DeltaProcessor.RootInfo) rootInfos.get(root.getPath());
JavaProject rootProject = rootInfo == null ? project : rootInfo.project;
HashSetOfArray fragmentsCache;
if (rootProject.equals(project)) {
// retrieve package fragments cache from this project
fragmentsCache = (HashSetOfArray) cache.pkgFragmentsCaches.get(root);
} else {
// retrieve package fragments cache from the root's project
ProjectCache rootProjectCache;
try {
rootProjectCache = rootProject.getProjectCache();
} catch (JavaModelException e) {
// project doesn't exit
continue;
}
fragmentsCache = (HashSetOfArray) rootProjectCache.pkgFragmentsCaches.get(root);
}
if (fragmentsCache == null) { // see https://bugs.eclipse.org/bugs/show_bug.cgi?id=183833
fragmentsCache = new HashSetOfArray();
initializePackageNames(root, fragmentsCache);
}
Object[][] set = fragmentsCache.set;
for (int j = 0, length2 = set.length; j < length2; j++) {
String[] pkgName = (String[]) set[j];
if (pkgName == null)
continue;
Object existing = allPkgFragmentsCache.get(pkgName);
if (existing == null || existing == NO_ROOTS) {
allPkgFragmentsCache.put(pkgName, root);
// ensure super packages (see https://bugs.eclipse.org/bugs/show_bug.cgi?id=119161)
// are also in the map
addSuperPackageNames(pkgName, allPkgFragmentsCache);
} else {
if (existing instanceof PackageFragmentRoot) {
allPkgFragmentsCache.put(pkgName, new IPackageFragmentRoot[] {(PackageFragmentRoot) existing, root});
} else {
IPackageFragmentRoot[] roots = (IPackageFragmentRoot[]) existing;
int rootLength = roots.length;
System.arraycopy(roots, 0, roots = new IPackageFragmentRoot[rootLength+1], 0, rootLength);
roots[rootLength] = root;
allPkgFragmentsCache.put(pkgName, roots);
}
}
}
}
cache.allPkgFragmentsCache = allPkgFragmentsCache;