private static boolean canBePrivate(
PsiMethod method,
Collection<PsiReference> references,
Collection<? extends PsiElement> deleted,
final PsiElement[] allElementsToDelete) {
final PsiClass containingClass = method.getContainingClass();
if (containingClass == null) {
return false;
}
PsiManager manager = method.getManager();
final JavaPsiFacade facade = JavaPsiFacade.getInstance(manager.getProject());
final PsiElementFactory factory = facade.getElementFactory();
final PsiModifierList privateModifierList;
try {
final PsiMethod newMethod = factory.createMethod("x3", PsiType.VOID);
privateModifierList = newMethod.getModifierList();
privateModifierList.setModifierProperty(PsiModifier.PRIVATE, true);
} catch (IncorrectOperationException e) {
LOG.assertTrue(false);
return false;
}
for (PsiReference reference : references) {
final PsiElement element = reference.getElement();
if (!isInside(element, allElementsToDelete)
&& !isInside(element, deleted)
&& !facade
.getResolveHelper()
.isAccessible(method, privateModifierList, element, null, null)) {
return false;
}
}
return true;
}
/**
* Adds import if it is needed.
*
* @return false when the FQ-name have to be used in code (e.g. when conflicting imports already
* exist)
*/
public boolean addImport(@NotNull PsiJavaFile file, @NotNull PsiClass refClass) {
final JavaPsiFacade facade = JavaPsiFacade.getInstance(file.getProject());
PsiElementFactory factory = facade.getElementFactory();
PsiResolveHelper helper = facade.getResolveHelper();
String className = refClass.getQualifiedName();
if (className == null) return true;
String packageName = getPackageOrClassName(className);
String shortName = PsiNameHelper.getShortClassName(className);
PsiClass conflictSingleRef = findSingleImportByShortName(file, shortName);
if (conflictSingleRef != null) {
return className.equals(conflictSingleRef.getQualifiedName());
}
PsiClass curRefClass = helper.resolveReferencedClass(shortName, file);
if (file.getManager().areElementsEquivalent(refClass, curRefClass)) {
return true;
}
boolean useOnDemand = true;
if (packageName.length() == 0) {
useOnDemand = false;
}
PsiElement conflictPackageRef = findImportOnDemand(file, packageName);
if (conflictPackageRef != null) {
useOnDemand = false;
}
List<PsiElement> classesToReimport = new ArrayList<PsiElement>();
List<PsiJavaCodeReferenceElement> importRefs = getImportsFromPackage(file, packageName);
if (useOnDemand) {
if (mySettings.USE_SINGLE_CLASS_IMPORTS
&& importRefs.size() + 1 < mySettings.CLASS_COUNT_TO_USE_IMPORT_ON_DEMAND
&& !mySettings.PACKAGES_TO_USE_IMPORT_ON_DEMAND.contains(packageName)) {
useOnDemand = false;
}
// name of class we try to import is the same as of the class defined in this file
if (curRefClass != null) {
useOnDemand = true;
}
// check conflicts
if (useOnDemand) {
PsiElement[] onDemandRefs = file.getOnDemandImports(false, true);
if (onDemandRefs.length > 0) {
PsiPackage aPackage = facade.findPackage(packageName);
if (aPackage != null) {
PsiDirectory[] dirs = aPackage.getDirectories();
for (PsiDirectory dir : dirs) {
PsiFile[] files = dir.getFiles(); // do not iterate classes - too slow when not loaded
for (PsiFile aFile : files) {
if (aFile instanceof PsiJavaFile) {
String name = aFile.getVirtualFile().getNameWithoutExtension();
for (PsiElement ref : onDemandRefs) {
String refName =
ref instanceof PsiClass
? ((PsiClass) ref).getQualifiedName()
: ((PsiPackage) ref).getQualifiedName();
String conflictClassName = refName + "." + name;
GlobalSearchScope resolveScope = file.getResolveScope();
PsiClass conflictClass = facade.findClass(conflictClassName, resolveScope);
if (conflictClass != null && helper.isAccessible(conflictClass, file, null)) {
String conflictClassName2 = aPackage.getQualifiedName() + "." + name;
PsiClass conflictClass2 = facade.findClass(conflictClassName2, resolveScope);
if (conflictClass2 != null
&& helper.isAccessible(conflictClass2, file, null)) {
if (ReferencesSearch.search(
conflictClass, new LocalSearchScope(file), false)
.findFirst()
!= null) {
classesToReimport.add(conflictClass);
}
}
}
}
}
}
}
}
}
}
}
try {
PsiImportList importList = file.getImportList();
PsiImportStatement statement;
if (useOnDemand) {
statement = factory.createImportStatementOnDemand(packageName);
} else {
statement = factory.createImportStatement(refClass);
}
importList.add(statement);
if (useOnDemand) {
for (PsiJavaCodeReferenceElement ref : importRefs) {
LOG.assertTrue(ref.getParent() instanceof PsiImportStatement);
if (!ref.isValid()) continue; // todo[dsl] Q?
classesToReimport.add(ref.resolve());
PsiImportStatement importStatement = (PsiImportStatement) ref.getParent();
importStatement.delete();
}
}
for (PsiElement aClassesToReimport : classesToReimport) {
PsiClass aClass = (PsiClass) aClassesToReimport;
if (aClass != null) {
addImport(file, aClass);
}
}
} catch (IncorrectOperationException e) {
LOG.error(e);
}
return true;
}
public static Processor<PsiClass> createInheritorsProcessor(
final PsiElement context,
final PsiClassType baseType,
final int arrayDim,
final boolean getRawSubtypes,
final Consumer<PsiType> result,
@NotNull final PsiClass baseClass,
final PsiSubstitutor baseSubstitutor) {
final PsiManager manager = context.getManager();
final JavaPsiFacade facade = JavaPsiFacade.getInstance(manager.getProject());
final PsiResolveHelper resolveHelper = facade.getResolveHelper();
return new Processor<PsiClass>() {
@Override
public boolean process(final PsiClass inheritor) {
ProgressManager.checkCanceled();
return ApplicationManager.getApplication()
.runReadAction(
new Computable<Boolean>() {
@Override
public Boolean compute() {
if (!context.isValid()
|| !inheritor.isValid()
|| !facade.getResolveHelper().isAccessible(inheritor, context, null))
return true;
if (inheritor.getQualifiedName() == null
&& !manager.areElementsEquivalent(
inheritor.getContainingFile(),
context.getContainingFile().getOriginalFile())) {
return true;
}
if (JavaCompletionUtil.isInExcludedPackage(inheritor, false)) return true;
PsiSubstitutor superSubstitutor =
TypeConversionUtil.getClassSubstitutor(
baseClass, inheritor, PsiSubstitutor.EMPTY);
if (superSubstitutor == null) return true;
if (getRawSubtypes) {
result.consume(
createType(
inheritor,
facade.getElementFactory().createRawSubstitutor(inheritor),
arrayDim));
return true;
}
PsiSubstitutor inheritorSubstitutor = PsiSubstitutor.EMPTY;
for (PsiTypeParameter inheritorParameter :
PsiUtil.typeParametersIterable(inheritor)) {
for (PsiTypeParameter baseParameter :
PsiUtil.typeParametersIterable(baseClass)) {
final PsiType substituted = superSubstitutor.substitute(baseParameter);
PsiType arg = baseSubstitutor.substitute(baseParameter);
if (arg instanceof PsiWildcardType) {
PsiType bound = ((PsiWildcardType) arg).getBound();
arg = bound != null ? bound : ((PsiWildcardType) arg).getExtendsBound();
}
PsiType substitution =
resolveHelper.getSubstitutionForTypeParameter(
inheritorParameter,
substituted,
arg,
true,
PsiUtil.getLanguageLevel(context));
if (PsiType.NULL.equals(substitution)
|| substitution instanceof PsiWildcardType) continue;
if (substitution == null) {
result.consume(
createType(
inheritor,
facade.getElementFactory().createRawSubstitutor(inheritor),
arrayDim));
return true;
}
inheritorSubstitutor =
inheritorSubstitutor.put(inheritorParameter, substitution);
break;
}
}
PsiType toAdd = createType(inheritor, inheritorSubstitutor, arrayDim);
if (baseType.isAssignableFrom(toAdd)) {
result.consume(toAdd);
}
return true;
}
})
.booleanValue();
}
};
}