@NotNull
private MutablePackageFragmentDescriptor getOrCreatePackageFragmentForFile(
@NotNull JetFile file) {
JetPackageDirective packageDirective = file.getPackageDirective();
assert packageDirective != null : "scripts are not supported";
MutablePackageFragmentDescriptor fragment =
packageFragmentProvider.getOrCreateFragment(packageDirective.getFqName());
ModuleDescriptor module = packageFragmentProvider.getModule();
DescriptorResolver.resolvePackageHeader(
packageDirective, module, TypeHierarchyResolver.this.trace);
trace.record(BindingContext.FILE_TO_PACKAGE_FRAGMENT, file, fragment);
// Register files corresponding to this package
// The trace currently does not support bi-di multimaps that would handle this task nicer
FqName fqName = fragment.getFqName();
Collection<JetFile> files = trace.get(PACKAGE_TO_FILES, fqName);
if (files == null) {
files = Sets.newIdentityHashSet();
}
files.add(file);
trace.record(BindingContext.PACKAGE_TO_FILES, fqName, files);
return fragment;
}
@NotNull
@Override
public FqName getContainingPackageFqName() {
PsiFile file = element.getContainingFile();
if (file instanceof JetFile) {
JetFile jetFile = (JetFile) file;
JetPackageDirective directive = jetFile.getPackageDirective();
return directive != null ? directive.getFqName() : FqName.ROOT;
}
throw new IllegalArgumentException("Not in a JetFile: " + element);
}