public static <T> T getOrCreateCache(
Key<T> cacheKey, PsiElement element, CacheProvider<T> provider) {
final PsiFile containingFile;
if (element instanceof PsiFile) {
containingFile = (PsiFile) element;
} else {
final PsiClass topLevelClass = PsiUtil.getTopLevelClass(element);
if (topLevelClass == null) {
return provider.provide();
}
containingFile = topLevelClass.getContainingFile();
}
if (containingFile == null) {
return provider.provide();
}
final PsiFile originalFile = containingFile.getOriginalFile();
T copyableUserData = originalFile.getCopyableUserData(cacheKey);
if (copyableUserData != null) {
if (!provider.isCacheValid(copyableUserData)) {
copyableUserData = null;
}
}
if (copyableUserData == null) {
originalFile.putCopyableUserData(cacheKey, copyableUserData = provider.provide());
}
return copyableUserData;
}
public static Collection<AnnotationSearchResult> findAllAnnotatedElements(
PsiElement element, String annotation) {
final PsiClass bean = PsiUtil.getTopLevelClass(element);
if (bean == null) {
return Collections.emptyList();
}
final List<AnnotationSearchResult> elementList = new ArrayList<AnnotationSearchResult>();
PsiAnnotation a;
for (PsiField e : bean.getAllFields()) {
a = getAnnotationFromElement(e, annotation);
if (a != null) {
elementList.add(new AnnotationSearchResult(a, e));
}
}
for (PsiMethod e : bean.getAllMethods()) {
a = getAnnotationFromElement(e, annotation);
if (a != null) {
elementList.add(new AnnotationSearchResult(a, e));
}
for (PsiParameter p : e.getParameterList().getParameters()) {
a = getAnnotationFromElement(p, annotation);
if (a != null) {
elementList.add(new AnnotationSearchResult(a, p));
}
}
}
return elementList;
}
public static long getLastUpdate(PsiElement element) {
try {
final PsiClass topLevelClass = PsiUtil.getTopLevelClass(element);
if (topLevelClass == null) {
return -1;
}
final PsiFile containingFile = topLevelClass.getContainingFile();
return containingFile.getOriginalFile().getModificationStamp();
} catch (PsiInvalidElementAccessException e) {
return -1;
}
}
@NotNull
public static SearchScope getMemberUseScope(@NotNull PsiMember member) {
PsiFile file = member.getContainingFile();
PsiElement topElement = file == null ? member : file;
Project project = topElement.getProject();
final GlobalSearchScope maximalUseScope =
ResolveScopeManager.getInstance(project).getUseScope(topElement);
if (isInServerPage(file)) return maximalUseScope;
PsiClass aClass = member.getContainingClass();
if (aClass instanceof PsiAnonymousClass
&& !(aClass instanceof PsiEnumConstantInitializer
&& member instanceof PsiMethod
&& member.hasModifierProperty(PsiModifier.PUBLIC)
&& ((PsiMethod) member).findSuperMethods().length > 0)) {
// member from anonymous class can be called from outside the class
PsiElement methodCallExpr =
PsiUtil.isLanguageLevel8OrHigher(aClass)
? PsiTreeUtil.getTopmostParentOfType(aClass, PsiStatement.class)
: PsiTreeUtil.getParentOfType(aClass, PsiMethodCallExpression.class);
return new LocalSearchScope(methodCallExpr != null ? methodCallExpr : aClass);
}
PsiModifierList modifierList = member.getModifierList();
int accessLevel =
modifierList == null ? PsiUtil.ACCESS_LEVEL_PUBLIC : PsiUtil.getAccessLevel(modifierList);
if (accessLevel == PsiUtil.ACCESS_LEVEL_PUBLIC
|| accessLevel == PsiUtil.ACCESS_LEVEL_PROTECTED) {
return maximalUseScope; // class use scope doesn't matter, since another very visible class
// can inherit from aClass
}
if (accessLevel == PsiUtil.ACCESS_LEVEL_PRIVATE) {
PsiClass topClass = PsiUtil.getTopLevelClass(member);
return topClass != null
? new LocalSearchScope(topClass)
: file == null ? maximalUseScope : new LocalSearchScope(file);
}
if (file instanceof PsiJavaFile) {
PsiPackage aPackage =
JavaPsiFacade.getInstance(project).findPackage(((PsiJavaFile) file).getPackageName());
if (aPackage != null) {
SearchScope scope = PackageScope.packageScope(aPackage, false);
return scope.intersectWith(maximalUseScope);
}
}
return maximalUseScope;
}
@Nullable
public static String getSourcePositionPackageDisplayName(
DebugProcessImpl debugProcess, @Nullable SourcePosition position) {
if (position == null) {
return null;
}
final PsiFile positionFile = position.getFile();
if (positionFile instanceof JspFile) {
final PsiDirectory dir = positionFile.getContainingDirectory();
return dir != null ? dir.getVirtualFile().getPresentableUrl() : null;
}
final PsiClass psiClass = getClassAt(position);
if (psiClass != null) {
PsiClass toplevel = PsiUtil.getTopLevelClass(psiClass);
if (toplevel != null) {
String qName = toplevel.getQualifiedName();
if (qName != null) {
int i = qName.lastIndexOf('.');
return i > 0 ? qName.substring(0, i) : "";
}
}
}
if (positionFile instanceof PsiClassOwner) {
String name = ((PsiClassOwner) positionFile).getPackageName();
if (!StringUtil.isEmpty(name)) {
return name;
}
}
if (debugProcess != null && debugProcess.isAttached()) {
List<ReferenceType> allClasses = debugProcess.getPositionManager().getAllClasses(position);
if (!allClasses.isEmpty()) {
final String className = allClasses.get(0).name();
int dotIndex = className.lastIndexOf('.');
if (dotIndex >= 0) {
return className.substring(0, dotIndex);
}
}
}
return "";
}
public static boolean isSourceLevelAccessible(
PsiElement context, PsiClass psiClass, final boolean pkgContext) {
if (!JavaPsiFacade.getInstance(psiClass.getProject())
.getResolveHelper()
.isAccessible(psiClass, context, null)) {
return false;
}
if (pkgContext) {
PsiClass topLevel = PsiUtil.getTopLevelClass(psiClass);
if (topLevel != null) {
String fqName = topLevel.getQualifiedName();
if (fqName != null && StringUtil.isEmpty(StringUtil.getPackageName(fqName))) {
return false;
}
}
}
return true;
}
/**
* Computes indentation of PsiClass, PsiMethod and PsiField elements after formatting
*
* @param element PsiClass or PsiMethod or PsiField
* @return indentation size
*/
private int getIndentSpecial(@NotNull PsiElement element) {
assert (element instanceof PsiClass
|| element instanceof PsiField
|| element instanceof PsiMethod);
int indentSize = mySettings.getIndentSize(JavaFileType.INSTANCE);
boolean doNotIndentTopLevelClassMembers =
mySettings.getCommonSettings(JavaLanguage.INSTANCE).DO_NOT_INDENT_TOP_LEVEL_CLASS_MEMBERS;
int indent = 0;
PsiClass top = PsiUtil.getTopLevelClass(element);
while (top != null && !element.isEquivalentTo(top)) {
if (doNotIndentTopLevelClassMembers && element.getParent().isEquivalentTo(top)) {
break;
}
element = element.getParent();
indent += indentSize;
}
return indent;
}
@NotNull
public static SearchScope getClassUseScope(@NotNull PsiClass aClass) {
if (aClass instanceof PsiAnonymousClass) {
return new LocalSearchScope(aClass);
}
final GlobalSearchScope maximalUseScope = ResolveScopeManager.getElementUseScope(aClass);
PsiFile file = aClass.getContainingFile();
if (PsiImplUtil.isInServerPage(file)) return maximalUseScope;
final PsiClass containingClass = aClass.getContainingClass();
if (aClass.hasModifierProperty(PsiModifier.PUBLIC)
|| aClass.hasModifierProperty(PsiModifier.PROTECTED)) {
return containingClass == null ? maximalUseScope : containingClass.getUseScope();
} else if (aClass.hasModifierProperty(PsiModifier.PRIVATE)
|| aClass instanceof PsiTypeParameter) {
PsiClass topClass = PsiUtil.getTopLevelClass(aClass);
return new LocalSearchScope(topClass == null ? aClass.getContainingFile() : topClass);
} else {
PsiPackage aPackage = null;
if (file instanceof PsiJavaFile) {
aPackage =
JavaPsiFacade.getInstance(aClass.getProject())
.findPackage(((PsiJavaFile) file).getPackageName());
}
if (aPackage == null) {
PsiDirectory dir = file.getContainingDirectory();
if (dir != null) {
aPackage = JavaDirectoryService.getInstance().getPackage(dir);
}
}
if (aPackage != null) {
SearchScope scope = PackageScope.packageScope(aPackage, false);
scope = scope.intersectWith(maximalUseScope);
return scope;
}
return new LocalSearchScope(file);
}
}
@Override
public void visitField(@NotNull PsiField field) {
super.visitField(field);
if (!field.hasModifierProperty(PsiModifier.PRIVATE)) {
return;
}
if (HighlightUtil.isSerializationImplicitlyUsedField(field)) {
return;
}
final PsiClass containingClass = PsiUtil.getTopLevelClass(field);
if (!shouldCheckVariable(field, containingClass)) {
return;
}
final ArrayReadWriteVisitor visitor =
new ArrayReadWriteVisitor(field, !isSimpleArrayExpression(field.getInitializer()));
containingClass.accept(visitor);
final boolean written = visitor.isWritten();
if (!visitor.isReferenced() || written == visitor.isRead()) {
return;
}
registerFieldError(field, Boolean.valueOf(written));
}
@NotNull
public static SearchScope getMemberUseScope(@NotNull PsiMember member) {
final GlobalSearchScope maximalUseScope = ResolveScopeManager.getElementUseScope(member);
PsiFile file = member.getContainingFile();
if (isInServerPage(file)) return maximalUseScope;
PsiClass aClass = member.getContainingClass();
if (aClass instanceof PsiAnonymousClass) {
// member from anonymous class can be called from outside the class
PsiElement methodCallExpr =
PsiTreeUtil.getParentOfType(aClass, PsiMethodCallExpression.class);
return new LocalSearchScope(methodCallExpr != null ? methodCallExpr : aClass);
}
if (member.hasModifierProperty(PsiModifier.PUBLIC)) {
return maximalUseScope; // class use scope doesn't matter, since another very visible class
// can inherit from aClass
} else if (member.hasModifierProperty(PsiModifier.PROTECTED)) {
return maximalUseScope; // class use scope doesn't matter, since another very visible class
// can inherit from aClass
} else if (member.hasModifierProperty(PsiModifier.PRIVATE)) {
PsiClass topClass = PsiUtil.getTopLevelClass(member);
return topClass != null ? new LocalSearchScope(topClass) : new LocalSearchScope(file);
} else {
if (file instanceof PsiJavaFile) {
PsiPackage aPackage =
JavaPsiFacade.getInstance(member.getProject())
.findPackage(((PsiJavaFile) file).getPackageName());
if (aPackage != null) {
SearchScope scope = PackageScope.packageScope(aPackage, false);
scope = scope.intersectWith(maximalUseScope);
return scope;
}
}
return maximalUseScope;
}
}
private static void findLocalHidesFieldCollisions(
final PsiElement element,
final String newName,
final Map<? extends PsiElement, String> allRenames,
final List<UsageInfo> result) {
if (!(element instanceof PsiLocalVariable) && !(element instanceof PsiParameter)) return;
PsiClass toplevel = PsiUtil.getTopLevelClass(element);
if (toplevel == null) return;
PsiElement scopeElement;
if (element instanceof PsiLocalVariable) {
scopeElement = RefactoringUtil.getVariableScope((PsiLocalVariable) element);
} else { // Parameter
scopeElement = ((PsiParameter) element).getDeclarationScope();
}
LOG.assertTrue(scopeElement != null);
scopeElement.accept(
new JavaRecursiveElementWalkingVisitor() {
@Override
public void visitReferenceExpression(PsiReferenceExpression expression) {
super.visitReferenceExpression(expression);
if (!expression.isQualified()) {
PsiElement resolved = expression.resolve();
if (resolved instanceof PsiField) {
final PsiField field = (PsiField) resolved;
String fieldNewName =
allRenames.containsKey(field) ? allRenames.get(field) : field.getName();
if (newName.equals(fieldNewName)) {
result.add(new LocalHidesFieldUsageInfo(expression, element));
}
}
}
}
});
}
public static void invoke(
final Project project, PsiFile file, final Editor editor, PsiElement element) {
if (!FileModificationService.getInstance().prepareFileForWrite(file)) return;
final PsiJavaCodeReferenceElement refExpr = (PsiJavaCodeReferenceElement) element.getParent();
final PsiClass aClass = (PsiClass) refExpr.resolve();
if (aClass == null) {
return;
}
final PsiClass containingClass = PsiUtil.getTopLevelClass(refExpr);
if (aClass != containingClass) {
PsiImportList importList = ((PsiJavaFile) file).getImportList();
if (importList == null) {
return;
}
boolean alreadyImported = false;
for (PsiImportStaticStatement statement : importList.getImportStaticStatements()) {
if (!statement.isOnDemand()) continue;
PsiClass staticResolve = statement.resolveTargetClass();
if (aClass == staticResolve) {
alreadyImported = true;
break;
}
}
if (!alreadyImported) {
PsiImportStaticStatement importStaticStatement =
JavaPsiFacade.getInstance(file.getProject())
.getElementFactory()
.createImportStaticStatement(aClass, "*");
importList.add(importStaticStatement);
}
}
List<PsiFile> roots = file.getViewProvider().getAllFiles();
for (final PsiFile root : roots) {
PsiElement copy = root.copy();
final PsiManager manager = root.getManager();
final TIntArrayList expressionToDequalifyOffsets = new TIntArrayList();
copy.accept(
new JavaRecursiveElementWalkingVisitor() {
int delta;
@Override
public void visitReferenceElement(PsiJavaCodeReferenceElement expression) {
if (isParameterizedReference(expression)) return;
PsiElement qualifierExpression = expression.getQualifier();
if (qualifierExpression instanceof PsiJavaCodeReferenceElement
&& ((PsiJavaCodeReferenceElement) qualifierExpression).isReferenceTo(aClass)) {
try {
PsiElement resolved = expression.resolve();
int end = expression.getTextRange().getEndOffset();
qualifierExpression.delete();
delta += end - expression.getTextRange().getEndOffset();
PsiElement after = expression.resolve();
if (manager.areElementsEquivalent(after, resolved)) {
expressionToDequalifyOffsets.add(
expression.getTextRange().getStartOffset() + delta);
}
} catch (IncorrectOperationException e) {
LOG.error(e);
}
}
super.visitElement(expression);
}
});
expressionToDequalifyOffsets.forEachDescending(
new TIntProcedure() {
@Override
public boolean execute(int offset) {
PsiJavaCodeReferenceElement expression =
PsiTreeUtil.findElementOfClassAtOffset(
root, offset, PsiJavaCodeReferenceElement.class, false);
if (expression == null) {
return false;
}
PsiElement qualifierExpression = expression.getQualifier();
if (qualifierExpression instanceof PsiJavaCodeReferenceElement
&& ((PsiJavaCodeReferenceElement) qualifierExpression).isReferenceTo(aClass)) {
qualifierExpression.delete();
if (editor != null) {
HighlightManager.getInstance(project)
.addRangeHighlight(
editor,
expression.getTextRange().getStartOffset(),
expression.getTextRange().getEndOffset(),
EditorColorsManager.getInstance()
.getGlobalScheme()
.getAttributes(EditorColors.SEARCH_RESULT_ATTRIBUTES),
false,
null);
}
}
return true;
}
});
}
}