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); }
@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 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; }
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); }
private static boolean processCachedMembersByName( @NotNull PsiClass aClass, @NotNull PsiScopeProcessor processor, @NotNull ResolveState state, @Nullable Set<PsiClass> visited, PsiElement last, @NotNull PsiElement place, boolean isRaw, @NotNull PsiSubstitutor substitutor, @NotNull MembersMap value, String name, @NotNull LanguageLevel languageLevel) { final ElementClassHint classHint = processor.getHint(ElementClassHint.KEY); PsiElementFactory factory = JavaPsiFacade.getInstance(aClass.getProject()).getElementFactory(); if (classHint == null || classHint.shouldProcess(ElementClassHint.DeclarationKind.FIELD)) { final PsiField fieldByName = aClass.findFieldByName(name, false); if (fieldByName != null) { processor.handleEvent(PsiScopeProcessor.Event.SET_DECLARATION_HOLDER, aClass); if (!processor.execute(fieldByName, state)) return false; } else { final Map<String, List<Pair<PsiMember, PsiSubstitutor>>> allFieldsMap = value.get(MemberType.FIELD); final List<Pair<PsiMember, PsiSubstitutor>> list = allFieldsMap.get(name); if (list != null) { for (final Pair<PsiMember, PsiSubstitutor> candidate : list) { PsiMember candidateField = candidate.getFirst(); PsiSubstitutor finalSubstitutor = obtainFinalSubstitutor( candidateField.getContainingClass(), candidate.getSecond(), aClass, substitutor, factory, languageLevel); processor.handleEvent( PsiScopeProcessor.Event.SET_DECLARATION_HOLDER, candidateField.getContainingClass()); if (!processor.execute(candidateField, state.put(PsiSubstitutor.KEY, finalSubstitutor))) return false; } } } } if (classHint == null || classHint.shouldProcess(ElementClassHint.DeclarationKind.CLASS)) { if (last != null && last.getParent() == aClass) { if (last instanceof PsiClass) { if (!processor.execute(last, state)) return false; } // Parameters final PsiTypeParameterList list = aClass.getTypeParameterList(); if (list != null && !list.processDeclarations(processor, state, last, place)) return false; } if (!(last instanceof PsiReferenceList)) { final PsiClass classByName = aClass.findInnerClassByName(name, false); if (classByName != null) { processor.handleEvent(PsiScopeProcessor.Event.SET_DECLARATION_HOLDER, aClass); if (!processor.execute(classByName, state)) return false; } else { Map<String, List<Pair<PsiMember, PsiSubstitutor>>> allClassesMap = value.get(MemberType.CLASS); List<Pair<PsiMember, PsiSubstitutor>> list = allClassesMap.get(name); if (list != null) { for (final Pair<PsiMember, PsiSubstitutor> candidate : list) { PsiMember inner = candidate.getFirst(); PsiClass containingClass = inner.getContainingClass(); if (containingClass != null) { PsiSubstitutor finalSubstitutor = obtainFinalSubstitutor( containingClass, candidate.getSecond(), aClass, substitutor, factory, languageLevel); processor.handleEvent( PsiScopeProcessor.Event.SET_DECLARATION_HOLDER, containingClass); if (!processor.execute(inner, state.put(PsiSubstitutor.KEY, finalSubstitutor))) return false; } } } } } } if (classHint == null || classHint.shouldProcess(ElementClassHint.DeclarationKind.METHOD)) { if (processor instanceof MethodResolverProcessor) { final MethodResolverProcessor methodResolverProcessor = (MethodResolverProcessor) processor; if (methodResolverProcessor.isConstructor()) { final PsiMethod[] constructors = aClass.getConstructors(); methodResolverProcessor.handleEvent( PsiScopeProcessor.Event.SET_DECLARATION_HOLDER, aClass); for (PsiMethod constructor : constructors) { if (!methodResolverProcessor.execute(constructor, state)) return false; } return true; } } Map<String, List<Pair<PsiMember, PsiSubstitutor>>> allMethodsMap = value.get(MemberType.METHOD); List<Pair<PsiMember, PsiSubstitutor>> list = allMethodsMap.get(name); if (list != null) { for (final Pair<PsiMember, PsiSubstitutor> candidate : list) { ProgressIndicatorProvider.checkCanceled(); PsiMethod candidateMethod = (PsiMethod) candidate.getFirst(); if (processor instanceof MethodResolverProcessor) { if (candidateMethod.isConstructor() != ((MethodResolverProcessor) processor).isConstructor()) continue; } final PsiClass containingClass = candidateMethod.getContainingClass(); if (visited != null && visited.contains(candidateMethod.getContainingClass())) { continue; } PsiSubstitutor finalSubstitutor = obtainFinalSubstitutor( containingClass, candidate.getSecond(), aClass, substitutor, factory, languageLevel); finalSubstitutor = checkRaw(isRaw, factory, candidateMethod, finalSubstitutor); processor.handleEvent(PsiScopeProcessor.Event.SET_DECLARATION_HOLDER, containingClass); if (!processor.execute(candidateMethod, state.put(PsiSubstitutor.KEY, finalSubstitutor))) return false; } if (visited != null) { for (Pair<PsiMember, PsiSubstitutor> aList : list) { visited.add(aList.getFirst().getContainingClass()); } } } } return true; }