@Override
protected void updateTitle(@Nullable final PsiVariable variable, final String value) {
final PsiElement declarationScope =
variable != null ? ((PsiParameter) variable).getDeclarationScope() : null;
if (declarationScope instanceof PsiMethod) {
final PsiMethod psiMethod = (PsiMethod) declarationScope;
final StringBuilder buf = new StringBuilder();
buf.append(psiMethod.getName()).append(" (");
boolean frst = true;
final List<TextRange> ranges2Remove = new ArrayList<>();
TextRange addedRange = null;
for (PsiParameter parameter : psiMethod.getParameterList().getParameters()) {
if (frst) {
frst = false;
} else {
buf.append(", ");
}
int startOffset = buf.length();
if (myMustBeFinal || myPanel.isGenerateFinal()) {
buf.append("final ");
}
buf.append(parameter.getType().getPresentableText())
.append(" ")
.append(variable == parameter ? value : parameter.getName());
int endOffset = buf.length();
if (variable == parameter) {
addedRange = new TextRange(startOffset, endOffset);
} else if (myPanel.isParamToRemove(parameter)) {
ranges2Remove.add(new TextRange(startOffset, endOffset));
}
}
buf.append(")");
setPreviewText(buf.toString());
final MarkupModel markupModel =
DocumentMarkupModel.forDocument(getPreviewEditor().getDocument(), myProject, true);
markupModel.removeAllHighlighters();
for (TextRange textRange : ranges2Remove) {
markupModel.addRangeHighlighter(
textRange.getStartOffset(),
textRange.getEndOffset(),
0,
getTestAttributesForRemoval(),
HighlighterTargetArea.EXACT_RANGE);
}
markupModel.addRangeHighlighter(
addedRange.getStartOffset(),
addedRange.getEndOffset(),
0,
getTextAttributesForAdd(),
HighlighterTargetArea.EXACT_RANGE);
revalidate();
}
}
public String[] getAdditionalIconNames() {
ArrayList<String> result = new ArrayList<String>();
String[] sa = new String[0];
if (myEnd instanceof PsiMethod) {
PsiMethod m = (PsiMethod) myEnd;
if (m.getModifierList().hasModifierProperty(PsiModifier.PUBLIC)) {
result.add("nodes/c_public");
} else if (m.getModifierList().hasModifierProperty(PsiModifier.PROTECTED)) {
result.add("nodes/c_protected");
} else if (m.getModifierList().hasModifierProperty(PsiModifier.PRIVATE)) {
result.add("nodes/c_private");
} else {
result.add("nodes/c_plocal");
}
if ((getModifiers() & ModifierConstants.IMPLEMENTING) != 0) {
result.add("gutter/implementingMethod");
}
if ((getModifiers() & ModifierConstants.IMPLEMENTED) != 0) {
result.add("gutter/implementedMethod");
}
if ((getModifiers() & ModifierConstants.OVERRIDING) != 0) {
result.add("gutter/overridingMethod");
}
if ((getModifiers() & ModifierConstants.OVERRIDDEN) != 0) {
result.add("gutter/overridenMethod");
}
}
return result.toArray(sa);
}
private void reportNullableReturns(
DataFlowInstructionVisitor visitor,
ProblemsHolder holder,
Set<PsiElement> reportedAnchors,
@NotNull PsiElement block) {
final PsiMethod method = getScopeMethod(block);
if (method == null || NullableStuffInspectionBase.isNullableNotInferred(method, true)) return;
boolean notNullRequired = NullableNotNullManager.isNotNull(method);
if (!notNullRequired && !SUGGEST_NULLABLE_ANNOTATIONS) return;
PsiType returnType = method.getReturnType();
// no warnings in void lambdas, where the expression is not returned anyway
if (block instanceof PsiExpression
&& block.getParent() instanceof PsiLambdaExpression
&& returnType == PsiType.VOID) return;
// no warnings for Void methods, where only null can be possibly returned
if (returnType == null || returnType.equalsToText(CommonClassNames.JAVA_LANG_VOID)) return;
for (PsiElement statement : visitor.getProblems(NullabilityProblem.nullableReturn)) {
assert statement instanceof PsiExpression;
final PsiExpression expr = (PsiExpression) statement;
if (!reportedAnchors.add(expr)) continue;
if (notNullRequired) {
final String text =
isNullLiteralExpression(expr)
? InspectionsBundle.message("dataflow.message.return.null.from.notnull")
: InspectionsBundle.message("dataflow.message.return.nullable.from.notnull");
holder.registerProblem(expr, text);
} else if (AnnotationUtil.isAnnotatingApplicable(statement)) {
final NullableNotNullManager manager =
NullableNotNullManager.getInstance(expr.getProject());
final String defaultNullable = manager.getDefaultNullable();
final String presentableNullable = StringUtil.getShortName(defaultNullable);
final String text =
isNullLiteralExpression(expr)
? InspectionsBundle.message(
"dataflow.message.return.null.from.notnullable", presentableNullable)
: InspectionsBundle.message(
"dataflow.message.return.nullable.from.notnullable", presentableNullable);
final LocalQuickFix[] fixes =
PsiTreeUtil.getParentOfType(expr, PsiMethod.class, PsiLambdaExpression.class)
instanceof PsiLambdaExpression
? LocalQuickFix.EMPTY_ARRAY
: new LocalQuickFix[] {
new AnnotateMethodFix(
defaultNullable, ArrayUtil.toStringArray(manager.getNotNulls())) {
@Override
public int shouldAnnotateBaseMethod(
PsiMethod method, PsiMethod superMethod, Project project) {
return 1;
}
}
};
holder.registerProblem(expr, text, fixes);
}
}
}
private boolean isTrivial(PsiMethod method) {
final PsiCodeBlock body = method.getBody();
if (body == null) {
return true;
}
final PsiStatement[] statements = body.getStatements();
if (statements.length == 0) {
return true;
}
final Project project = method.getProject();
final JavaPsiFacade psiFacade = JavaPsiFacade.getInstance(project);
final PsiConstantEvaluationHelper evaluationHelper = psiFacade.getConstantEvaluationHelper();
for (PsiStatement statement : statements) {
if (!(statement instanceof PsiIfStatement)) {
return false;
}
final PsiIfStatement ifStatement = (PsiIfStatement) statement;
final PsiExpression condition = ifStatement.getCondition();
final Object result = evaluationHelper.computeConstantExpression(condition);
if (result == null || !result.equals(Boolean.FALSE)) {
return false;
}
}
return true;
}
private void analyzeDfaWithNestedClosures(
PsiElement scope,
ProblemsHolder holder,
StandardDataFlowRunner dfaRunner,
Collection<DfaMemoryState> initialStates) {
final DataFlowInstructionVisitor visitor = new DataFlowInstructionVisitor(dfaRunner);
final RunnerResult rc =
dfaRunner.analyzeMethod(scope, visitor, IGNORE_ASSERT_STATEMENTS, initialStates);
if (rc == RunnerResult.OK) {
createDescription(dfaRunner, holder, visitor);
MultiMap<PsiElement, DfaMemoryState> nestedClosures = dfaRunner.getNestedClosures();
for (PsiElement closure : nestedClosures.keySet()) {
analyzeDfaWithNestedClosures(closure, holder, dfaRunner, nestedClosures.get(closure));
}
} else if (rc == RunnerResult.TOO_COMPLEX) {
if (scope.getParent() instanceof PsiMethod) {
PsiMethod method = (PsiMethod) scope.getParent();
final PsiIdentifier name = method.getNameIdentifier();
if (name != null) { // Might be null for synthetic methods like JSP page.
holder.registerProblem(
name,
InspectionsBundle.message("dataflow.too.complex"),
ProblemHighlightType.WEAK_WARNING);
}
}
}
}
@NotNull
private static List<PsiMethod> findMethodsBySignature(
@NotNull PsiClass aClass,
@NotNull PsiMethod patternMethod,
boolean checkBases,
boolean stopOnFirst) {
final PsiMethod[] methodsByName = aClass.findMethodsByName(patternMethod.getName(), checkBases);
if (methodsByName.length == 0) return Collections.emptyList();
final List<PsiMethod> methods = new SmartList<PsiMethod>();
final MethodSignature patternSignature = patternMethod.getSignature(PsiSubstitutor.EMPTY);
for (final PsiMethod method : methodsByName) {
final PsiClass superClass = method.getContainingClass();
final PsiSubstitutor substitutor;
if (checkBases && !aClass.equals(superClass)) {
substitutor =
TypeConversionUtil.getSuperClassSubstitutor(superClass, aClass, PsiSubstitutor.EMPTY);
} else {
substitutor = PsiSubstitutor.EMPTY;
}
final MethodSignature signature = method.getSignature(substitutor);
if (signature.equals(patternSignature)) {
methods.add(method);
if (stopOnFirst) {
break;
}
}
}
return methods;
}
private static boolean isCollectCall(PsiStatement body, final PsiParameter parameter) {
PsiIfStatement ifStatement = extractIfStatement(body);
final PsiMethodCallExpression methodCallExpression = extractAddCall(body, ifStatement);
if (methodCallExpression != null) {
final PsiReferenceExpression methodExpression = methodCallExpression.getMethodExpression();
final PsiExpression qualifierExpression = methodExpression.getQualifierExpression();
PsiClass qualifierClass = null;
if (qualifierExpression instanceof PsiReferenceExpression) {
if (ReferencesSearch.search(parameter, new LocalSearchScope(qualifierExpression))
.findFirst()
!= null) {
return false;
}
final PsiElement resolve = ((PsiReferenceExpression) qualifierExpression).resolve();
if (resolve instanceof PsiVariable) {
if (ReferencesSearch.search(
resolve, new LocalSearchScope(methodCallExpression.getArgumentList()))
.findFirst()
!= null) {
return false;
}
}
qualifierClass = PsiUtil.resolveClassInType(qualifierExpression.getType());
} else if (qualifierExpression == null) {
final PsiClass enclosingClass = PsiTreeUtil.getParentOfType(body, PsiClass.class);
if (PsiUtil.getEnclosingStaticElement(body, enclosingClass) == null) {
qualifierClass = enclosingClass;
}
}
if (qualifierClass != null
&& InheritanceUtil.isInheritor(
qualifierClass, false, CommonClassNames.JAVA_UTIL_COLLECTION)) {
while (ifStatement != null && PsiTreeUtil.isAncestor(body, ifStatement, false)) {
final PsiExpression condition = ifStatement.getCondition();
if (condition != null
&& isConditionDependsOnUpdatedCollections(condition, qualifierExpression))
return false;
ifStatement = PsiTreeUtil.getParentOfType(ifStatement, PsiIfStatement.class);
}
final PsiElement resolve = methodExpression.resolve();
if (resolve instanceof PsiMethod
&& "add".equals(((PsiMethod) resolve).getName())
&& ((PsiMethod) resolve).getParameterList().getParametersCount() == 1) {
final PsiExpression[] args = methodCallExpression.getArgumentList().getExpressions();
if (args.length == 1) {
if (args[0] instanceof PsiCallExpression) {
final PsiMethod method = ((PsiCallExpression) args[0]).resolveMethod();
return method != null && !method.hasTypeParameters() && !isThrowsCompatible(method);
}
return true;
}
}
}
}
return false;
}
@Nullable
private PsiParameter getParameter() {
if (!myMethod.isValid()) return null;
final PsiParameter[] parameters = myMethod.getParameterList().getParameters();
return parameters.length > myParameterIndex && myParameterIndex >= 0
? parameters[myParameterIndex]
: null;
}
public String getTypeIconName() {
if (myEnd instanceof PsiMethod) {
PsiMethod m = (PsiMethod) myEnd;
return (((PsiModifierList) m.getModifierList()).hasModifierProperty(PsiModifier.STATIC))
? "nodes/staticMethod"
: "nodes/method";
}
return null;
}
boolean hasPrivateConstructor(PsiClass aClass) {
final PsiMethod[] constructors = aClass.getConstructors();
for (final PsiMethod constructor : constructors) {
if (constructor.hasModifierProperty(PsiModifier.PRIVATE)) {
return true;
}
}
return false;
}
static boolean hasNullArgConstructor(PsiClass aClass) {
final PsiMethod[] constructors = aClass.getConstructors();
for (final PsiMethod constructor : constructors) {
final PsiParameterList params = constructor.getParameterList();
if (params.getParametersCount() == 0) {
return true;
}
}
return false;
}
@Override
public void visitThrowStatement(PsiThrowStatement statement) {
super.visitThrowStatement(statement);
final PsiCatchSection catchSection =
PsiTreeUtil.getParentOfType(statement, PsiCatchSection.class, true, PsiClass.class);
if (catchSection == null) {
return;
}
final PsiParameter parameter = catchSection.getParameter();
if (parameter == null) {
return;
}
@NonNls final String parameterName = parameter.getName();
if (PsiUtil.isIgnoredName(parameterName)) {
return;
}
final PsiExpression exception = statement.getException();
if (exception == null) {
return;
}
if (ignoreCantWrap) {
final PsiType thrownType = exception.getType();
if (thrownType instanceof PsiClassType) {
final PsiClassType classType = (PsiClassType) thrownType;
final PsiClass exceptionClass = classType.resolve();
if (exceptionClass != null) {
final PsiMethod[] constructors = exceptionClass.getConstructors();
final PsiClassType throwableType =
TypeUtils.getType(CommonClassNames.JAVA_LANG_THROWABLE, statement);
boolean canWrap = false;
outer:
for (PsiMethod constructor : constructors) {
final PsiParameterList parameterList = constructor.getParameterList();
final PsiParameter[] parameters = parameterList.getParameters();
for (PsiParameter constructorParameter : parameters) {
final PsiType type = constructorParameter.getType();
if (throwableType.equals(type)) {
canWrap = true;
break outer;
}
}
}
if (!canWrap) {
return;
}
}
}
}
final ReferenceFinder visitor = new ReferenceFinder(parameter);
exception.accept(visitor);
if (visitor.usesParameter()) {
return;
}
registerStatementError(statement);
}
@Nullable
private ProblemDescriptor createDescription(
@NotNull PsiTypeCastExpression cast, @NotNull InspectionManager manager, boolean onTheFly) {
PsiExpression operand = cast.getOperand();
PsiTypeElement castType = cast.getCastType();
if (operand == null || castType == null) return null;
PsiElement parent = cast.getParent();
while (parent instanceof PsiParenthesizedExpression) {
parent = parent.getParent();
}
if (parent instanceof PsiReferenceExpression) {
if (IGNORE_ANNOTATED_METHODS) {
final PsiElement gParent = parent.getParent();
if (gParent instanceof PsiMethodCallExpression) {
final PsiMethod psiMethod = ((PsiMethodCallExpression) gParent).resolveMethod();
if (psiMethod != null && NullableNotNullManager.isNotNull(psiMethod)) {
final PsiClass superClass = PsiUtil.resolveClassInType(operand.getType());
final PsiClass containingClass = psiMethod.getContainingClass();
if (containingClass != null
&& superClass != null
&& containingClass.isInheritor(superClass, true)) {
for (PsiMethod method : psiMethod.findSuperMethods(superClass)) {
if (NullableNotNullManager.isNullable(method)) {
return null;
}
}
}
}
}
}
} else if (parent instanceof PsiExpressionList) {
final PsiElement gParent = parent.getParent();
if (gParent instanceof PsiMethodCallExpression && IGNORE_SUSPICIOUS_METHOD_CALLS) {
final String message =
SuspiciousCollectionsMethodCallsInspection.getSuspiciousMethodCallMessage(
(PsiMethodCallExpression) gParent,
operand.getType(),
true,
new ArrayList<PsiMethod>(),
new IntArrayList());
if (message != null) {
return null;
}
}
}
String message =
InspectionsBundle.message(
"inspection.redundant.cast.problem.descriptor",
"<code>" + operand.getText() + "</code>",
"<code>#ref</code> #loc");
return manager.createProblemDescriptor(
castType, message, myQuickFixAction, ProblemHighlightType.LIKE_UNUSED_SYMBOL, onTheFly);
}
private static int getMethodOffsetInInterface(PsiMethod method) {
final PsiMethod[] superMethods = method.findSuperMethods();
// final PsiMethod[] superMethods = PsiSuperMethodUtil.findSuperMethods(method); // todo
// - for IDEA 5.0
if (superMethods.length == 0) return 0;
PsiMethod m = superMethods[0];
PsiElement parent = m.getParent();
if (parent instanceof PsiClass && ((PsiClass) parent).isInterface()) {
return m.getTextOffset();
}
return getMethodOffsetInInterface(m);
}
private static PsiSubstitutor checkRaw(
boolean isRaw,
@NotNull PsiElementFactory factory,
@NotNull PsiMethod candidateMethod,
@NotNull PsiSubstitutor substitutor) {
if (isRaw
&& !candidateMethod.hasModifierProperty(
PsiModifier.STATIC)) { // static methods are not erased due to raw overriding
PsiTypeParameter[] methodTypeParameters = candidateMethod.getTypeParameters();
substitutor = factory.createRawSubstitutor(substitutor, methodTypeParameters);
}
return substitutor;
}
private static TextRange calculateLimitRange(
final PsiFile file, final Document doc, final int line) {
final int offset = doc.getLineStartOffset(line);
if (offset > 0) {
PsiMethod method =
PsiTreeUtil.getParentOfType(file.findElementAt(offset), PsiMethod.class, false);
if (method != null) {
final TextRange elemRange = method.getTextRange();
return new TextRange(
doc.getLineNumber(elemRange.getStartOffset()),
doc.getLineNumber(elemRange.getEndOffset()));
}
}
return new TextRange(0, doc.getLineCount() - 1);
}
@Override
public void visitMethod(@NotNull PsiMethod method) {
// note: no call to super;
final String methodName = method.getName();
if (!HardcodedMethodConstants.FINALIZE.equals(methodName)) {
return;
}
final PsiParameterList parameterList = method.getParameterList();
if (parameterList.getParametersCount() != 0) {
return;
}
if (ignoreTrivialFinalizers && isTrivial(method)) {
return;
}
registerMethodError(method);
}
private void doImport(final PsiMethod toImport) {
CommandProcessor.getInstance()
.executeCommand(
toImport.getProject(),
new Runnable() {
@Override
public void run() {
ApplicationManager.getApplication()
.runWriteAction(
new Runnable() {
@Override
public void run() {
try {
PsiMethodCallExpression element = myMethodCall.getElement();
if (element != null) {
element
.getMethodExpression()
.bindToElementViaStaticImport(toImport.getContainingClass());
}
} catch (IncorrectOperationException e) {
LOG.error(e);
}
}
});
}
},
getText(),
this);
}
@Override
protected PsiVariable createFieldToStartTemplateOn(
final String[] names, final PsiType defaultType) {
final PsiElementFactory elementFactory = JavaPsiFacade.getElementFactory(myMethod.getProject());
return ApplicationManager.getApplication()
.runWriteAction(
new Computable<PsiParameter>() {
@Override
public PsiParameter compute() {
final PsiParameter anchor =
JavaIntroduceParameterMethodUsagesProcessor.getAnchorParameter(myMethod);
final PsiParameter psiParameter =
(PsiParameter)
myMethod
.getParameterList()
.addAfter(
elementFactory.createParameter(
chooseName(names, myMethod.getLanguage()), defaultType),
anchor);
PsiUtil.setModifierProperty(
psiParameter, PsiModifier.FINAL, myPanel.hasFinalModifier());
myParameterIndex = myMethod.getParameterList().getParameterIndex(psiParameter);
return psiParameter;
}
});
}
private static LookupElementBuilder createOverridingLookupElement(
boolean implemented,
final PsiMethod baseMethod,
PsiClass baseClass,
PsiSubstitutor substitutor) {
RowIcon icon =
new RowIcon(
baseMethod.getIcon(0),
implemented ? AllIcons.Gutter.ImplementingMethod : AllIcons.Gutter.OverridingMethod);
return createGenerateMethodElement(
baseMethod,
substitutor,
icon,
baseClass.getName(),
new InsertHandler<LookupElement>() {
@Override
public void handleInsert(InsertionContext context, LookupElement item) {
removeLookupString(context);
final PsiClass parent =
PsiTreeUtil.findElementOfClassAtOffset(
context.getFile(), context.getStartOffset(), PsiClass.class, false);
if (parent == null) return;
List<PsiMethod> prototypes =
OverrideImplementUtil.overrideOrImplementMethod(parent, baseMethod, false);
insertGenerationInfos(
context, OverrideImplementUtil.convert2GenerationInfos(prototypes));
}
});
}
/**
* Called when getters and setters are to be kept together in pairs. Searches the list of entries
* for any getter/setter methods that matches this getter method. Normally there is only one
* setter per getter, but one could have a "getXXX", "isXXX" and "setXXX" trio which need to be
* related. In this case, the first getter encountered finds the other getter and setter and the
* three will be emitted in that order.
*
* @param possibleMethods entry list, possibly containing the corresponding setter for this
* getter.
* @param settings
*/
public void determineSetter(
final List<ClassContentsEntry> possibleMethods, RearrangerSettings settings) {
if (!isGetter()) // wasted assertion, already checked before calling
{
return;
}
final PsiMethod thisMethod = (PsiMethod) myEnd;
String thisProperty = MethodUtil.getPropertyName(thisMethod);
if (isGetter() && !myKeptWithProperty) {
if (settings.isKeepGettersSettersWithProperty()) {
hookGetterToProperty(possibleMethods);
}
}
for (ClassContentsEntry o : possibleMethods) {
if (o instanceof RelatableEntry) {
MethodEntry me = (MethodEntry) o;
// don't use a setter twice (could be two methods which both look like getters; assign the
// setter
// to only one of them.) Also, associate all getter/setter methods for the same property
// with the
// first one encountered.
if ((me.isSetter() || me.isGetter())
&& me.myCorrespondingGetterSetters.size() == 0
&& me != this) {
PsiMethod m = (PsiMethod) me.myEnd;
String otherProperty = MethodUtil.getPropertyName(m);
if (thisProperty.equals(otherProperty)) {
LOG.debug(
"method " + thisMethod.toString() + " is getter; its setter is " + m.toString());
// place getters ahead of setters
if (me.isGetter()) {
myCorrespondingGetterSetters.add(0, me);
// clear the getter flag and set the setter flag; this causes the method to be emitted
// under the first getter encountered.
me.setGetter(false);
me.setSetter(true);
} else {
myCorrespondingGetterSetters.add(me);
}
me.myCorrespondingGetterSetters.add(this);
}
}
}
}
}
private static void addSuperSignatureElements(
final PsiClass parent,
boolean implemented,
CompletionResultSet result,
Set<MethodSignature> addedSignatures) {
for (CandidateInfo candidate :
OverrideImplementExploreUtil.getMethodsToOverrideImplement(parent, implemented)) {
PsiMethod baseMethod = (PsiMethod) candidate.getElement();
PsiClass baseClass = baseMethod.getContainingClass();
PsiSubstitutor substitutor = candidate.getSubstitutor();
if (!baseMethod.isConstructor()
&& baseClass != null
&& addedSignatures.add(baseMethod.getSignature(substitutor))) {
result.addElement(
createOverridingLookupElement(implemented, baseMethod, baseClass, substitutor));
}
}
}
@Override
public void doFix(Project project, ProblemDescriptor descriptor)
throws IncorrectOperationException {
final PsiElement classNameIdentifier = descriptor.getPsiElement();
final PsiClass aClass = (PsiClass) classNameIdentifier.getParent();
if (aClass == null) {
return;
}
final PsiManager psiManager = PsiManager.getInstance(project);
final PsiElementFactory factory =
JavaPsiFacade.getInstance(psiManager.getProject()).getElementFactory();
final PsiMethod constructor = factory.createConstructor();
final PsiModifierList modifierList = constructor.getModifierList();
modifierList.setModifierProperty(PsiModifier.PRIVATE, true);
aClass.add(constructor);
final CodeStyleManager styleManager = psiManager.getCodeStyleManager();
styleManager.reformat(constructor);
}
@Override
public void doFix(Project project, ProblemDescriptor descriptor)
throws IncorrectOperationException {
final PsiElement classNameIdentifier = descriptor.getPsiElement();
final PsiClass aClass = (PsiClass) classNameIdentifier.getParent();
if (aClass == null) {
return;
}
final PsiMethod[] constructurs = aClass.getConstructors();
for (final PsiMethod constructor : constructurs) {
final PsiParameterList parameterList = constructor.getParameterList();
if (parameterList.getParametersCount() == 0) {
final PsiModifierList modifiers = constructor.getModifierList();
modifiers.setModifierProperty(PsiModifier.PUBLIC, false);
modifiers.setModifierProperty(PsiModifier.PROTECTED, false);
modifiers.setModifierProperty(PsiModifier.PRIVATE, true);
}
}
}
private boolean hasGoodToString(PsiClass aClass) {
final PsiMethod[] methods =
aClass.findMethodsByName(HardcodedMethodConstants.TO_STRING, true);
for (PsiMethod method : methods) {
final PsiClass containingClass = method.getContainingClass();
if (containingClass == null) {
continue;
}
final String name = containingClass.getQualifiedName();
if (CommonClassNames.JAVA_LANG_OBJECT.equals(name)) {
continue;
}
final PsiParameterList parameterList = method.getParameterList();
if (parameterList.getParametersCount() == 0) {
return true;
}
}
return false;
}
private static boolean isThrowsCompatible(PsiMethod method) {
return ContainerUtil.find(
method.getThrowsList().getReferencedTypes(),
new Condition<PsiClassType>() {
@Override
public boolean value(PsiClassType type) {
return !ExceptionUtil.isUncheckedException(type);
}
})
!= null;
}
public static boolean isMainOrPremainMethod(@NotNull PsiMethod method) {
if (!PsiType.VOID.equals(method.getReturnType())) return false;
String name = method.getName();
if (!("main".equals(name) || "premain".equals(name))) return false;
PsiElementFactory factory = JavaPsiFacade.getInstance(method.getProject()).getElementFactory();
MethodSignature signature = method.getSignature(PsiSubstitutor.EMPTY);
try {
MethodSignature main = createSignatureFromText(factory, "void main(String[] args);");
if (MethodSignatureUtil.areSignaturesEqual(signature, main)) return true;
MethodSignature premain =
createSignatureFromText(
factory, "void premain(String args, java.lang.instrument.Instrumentation i);");
if (MethodSignatureUtil.areSignaturesEqual(signature, premain)) return true;
} catch (IncorrectOperationException e) {
LOG.error(e);
}
return false;
}
private static boolean canCallMethodsInConstructors(PsiClass aClass, boolean virtual) {
for (PsiMethod constructor : aClass.getConstructors()) {
if (!constructor.getLanguage().isKindOf(JavaLanguage.INSTANCE)) return true;
PsiCodeBlock body = constructor.getBody();
if (body == null) continue;
for (PsiMethodCallExpression call :
SyntaxTraverser.psiTraverser().withRoot(body).filter(PsiMethodCallExpression.class)) {
PsiReferenceExpression methodExpression = call.getMethodExpression();
if (methodExpression instanceof PsiThisExpression
|| methodExpression instanceof PsiSuperExpression) continue;
if (!virtual) return true;
PsiMethod target = call.resolveMethod();
if (target != null && PsiUtil.canBeOverriden(target)) return true;
}
}
return false;
}
@Override
public void applyFix(@NotNull Project project, @NotNull ProblemDescriptor descriptor) {
if (!FileModificationService.getInstance()
.preparePsiElementForWrite(descriptor.getPsiElement())) return;
final PsiModifierListOwner element =
PsiTreeUtil.getParentOfType(descriptor.getPsiElement(), PsiModifierListOwner.class);
if (element != null) {
RefElement refElement = null;
if (myManager != null) {
refElement = myManager.getReference(element);
}
try {
if (element instanceof PsiVariable) {
((PsiVariable) element).normalizeDeclaration();
}
PsiModifierList list = element.getModifierList();
LOG.assertTrue(list != null);
if (element instanceof PsiMethod) {
PsiMethod psiMethod = (PsiMethod) element;
PsiClass containingClass = psiMethod.getContainingClass();
if (containingClass != null
&& containingClass.getParent() instanceof PsiFile
&& myHint == PsiModifier.PRIVATE
&& list.hasModifierProperty(PsiModifier.FINAL)) {
list.setModifierProperty(PsiModifier.FINAL, false);
}
}
list.setModifierProperty(myHint, true);
if (refElement instanceof RefJavaElement) {
RefJavaUtil.getInstance().setAccessModifier((RefJavaElement) refElement, myHint);
}
} catch (IncorrectOperationException e) {
LOG.error(e);
}
}
}
private static String computeConstantSuperCtorCallParameter(
PsiClass languagePsiClass, int index) {
if (languagePsiClass instanceof PsiAnonymousClass) {
return getStringConstantExpression(
((PsiAnonymousClass) languagePsiClass).getArgumentList(), index);
}
PsiMethod defaultConstructor = null;
for (PsiMethod constructor : languagePsiClass.getConstructors()) {
if (constructor.getParameterList().getParametersCount() == 0) {
defaultConstructor = constructor;
break;
}
}
if (defaultConstructor == null) {
return null;
}
final PsiCodeBlock body = defaultConstructor.getBody();
if (body == null) {
return null;
}
final PsiStatement[] statements = body.getStatements();
if (statements.length < 1) {
return null;
}
// super() must be first
PsiStatement statement = statements[0];
if (!(statement instanceof PsiExpressionStatement)) {
return null;
}
PsiExpression expression = ((PsiExpressionStatement) statement).getExpression();
if (!(expression instanceof PsiMethodCallExpression)) {
return null;
}
PsiMethodCallExpression methodCallExpression = (PsiMethodCallExpression) expression;
PsiExpressionList expressionList = methodCallExpression.getArgumentList();
return getStringConstantExpression(expressionList, index);
}