Java JavaModelUtil.is18OrHigher方法代码示例

import org.eclipse.jdt.internal.corext.util.JavaModelUtil; //导入方法依赖的package包/类
/**
 * Removes all {@link Annotation} whose only {@link Target} is {@link ElementType#TYPE_USE} from
 * <code>node</code>'s <code>childListProperty</code>.
 * <p>
 * In a combination of {@link ElementType#TYPE_USE} and {@link ElementType#TYPE_PARAMETER}
 * the latter is ignored, because this is implied by the former and creates no ambiguity.</p>
 *
 * @param node ASTNode
 * @param childListProperty child list property
 * @param rewrite rewrite that removes the nodes
 * @param editGroup the edit group in which to collect the corresponding text edits, or null if
 *            ungrouped
 */
public static void removePureTypeAnnotations(ASTNode node, ChildListPropertyDescriptor childListProperty, ASTRewrite rewrite, TextEditGroup editGroup) {
	CompilationUnit root= (CompilationUnit) node.getRoot();
	if (!JavaModelUtil.is18OrHigher(root.getJavaElement().getJavaProject())) {
		return;
	}
	ListRewrite listRewrite= rewrite.getListRewrite(node, childListProperty);
	@SuppressWarnings("unchecked")
	List<? extends ASTNode> children= (List<? extends ASTNode>) node.getStructuralProperty(childListProperty);
	for (ASTNode child : children) {
		if (child instanceof Annotation) {
			Annotation annotation= (Annotation) child;
			if (isPureTypeAnnotation(annotation)) {
				listRewrite.remove(child, editGroup);
			}
		}
	}
}
 

import org.eclipse.jdt.internal.corext.util.JavaModelUtil; //导入方法依赖的package包/类
private RefactoringStatus checkMoveToInterface() throws JavaModelException {
	//could be more clever and make field final if it is only written once...
	boolean is18OrHigher= JavaModelUtil.is18OrHigher(fDestinationType.getJavaProject());
	RefactoringStatus result= new RefactoringStatus();
	boolean declaringIsInterface= getDeclaringType().isInterface();
	if (declaringIsInterface && is18OrHigher)
		return result;
	String moveMembersMsg= is18OrHigher ? RefactoringCoreMessages.MoveMembersRefactoring_only_public_static_18 : RefactoringCoreMessages.MoveMembersRefactoring_only_public_static;
	for (int i= 0; i < fMembersToMove.length; i++) {
		if (declaringIsInterface && !(fMembersToMove[i] instanceof IMethod) && !is18OrHigher) {
			// moving from interface to interface is OK, unless method is moved to pre-18
		} else if (!canMoveToInterface(fMembersToMove[i], is18OrHigher)) {
			result.addError(moveMembersMsg, JavaStatusContext.create(fMembersToMove[i]));
		} else if (!Flags.isPublic(fMembersToMove[i].getFlags()) && !declaringIsInterface) {
			result.addWarning(RefactoringCoreMessages.MoveMembersRefactoring_member_will_be_public, JavaStatusContext.create(fMembersToMove[i]));
		}
	}
	return result;
}
 

import org.eclipse.jdt.internal.corext.util.JavaModelUtil; //导入方法依赖的package包/类
@Override
public RefactoringStatus checkInitialConditions(IProgressMonitor pm) throws CoreException {
	initAST();
	if (fTempDeclarationNode == null || fTempDeclarationNode.resolveBinding() == null)
		return RefactoringStatus.createFatalErrorStatus(RefactoringCoreMessages.RenameTempRefactoring_must_select_local);

	if (!Checks.isDeclaredIn(fTempDeclarationNode, MethodDeclaration.class)
			&& !Checks.isDeclaredIn(fTempDeclarationNode, Initializer.class)
			&& !Checks.isDeclaredIn(fTempDeclarationNode, LambdaExpression.class)) {
		if (JavaModelUtil.is18OrHigher(fCu.getJavaProject()))
			return RefactoringStatus.createFatalErrorStatus(RefactoringCoreMessages.RenameTempRefactoring_only_in_methods_initializers_and_lambda);

		return RefactoringStatus.createFatalErrorStatus(RefactoringCoreMessages.RenameTempRefactoring_only_in_methods_and_initializers);
	}

	initNames();
	return new RefactoringStatus();
}
 

import org.eclipse.jdt.internal.corext.util.JavaModelUtil; //导入方法依赖的package包/类
private IType chooseIntermediaryType() {
	IJavaProject proj= getIntroduceIndirectionRefactoring().getProject();

	if (proj == null)
		return null;

	IJavaElement[] elements= new IJavaElement[] { proj };
	IJavaSearchScope scope= SearchEngine.createJavaSearchScope(elements);

	int elementKinds= JavaModelUtil.is18OrHigher(proj) ? IJavaSearchConstants.CLASS_AND_INTERFACE : IJavaSearchConstants.CLASS;
	FilteredTypesSelectionDialog dialog= new FilteredTypesSelectionDialog(getShell(), false, getWizard().getContainer(), scope, elementKinds);

	dialog.setTitle(RefactoringMessages.IntroduceIndirectionInputPage_dialog_choose_declaring_class);
	dialog.setMessage(RefactoringMessages.IntroduceIndirectionInputPage_dialog_choose_declaring_class_long);

	if (dialog.open() == Window.OK) {
		return (IType) dialog.getFirstResult();
	}
	return null;
}
 

import org.eclipse.jdt.internal.corext.util.JavaModelUtil; //导入方法依赖的package包/类
private RefactoringStatus checkProjectCompliance(IMethod sourceMethod) throws JavaModelException {
	RefactoringStatus status = new RefactoringStatus();
	IMethod targetMethod = getTargetMethod(sourceMethod, Optional.empty());
	IJavaProject destinationProject = targetMethod.getJavaProject();

	if (!JavaModelUtil.is18OrHigher(destinationProject))
		addErrorAndMark(status, PreconditionFailure.DestinationProjectIncompatible, sourceMethod, targetMethod);

	return status;
}
 

import org.eclipse.jdt.internal.corext.util.JavaModelUtil; //导入方法依赖的package包/类
public static boolean isMoveStaticAvailable(final IMember member) throws JavaModelException {
	if (!member.exists())
		return false;
	final int type= member.getElementType();
	if (type != IJavaElement.METHOD && type != IJavaElement.FIELD && type != IJavaElement.TYPE)
		return false;
	if (JdtFlags.isEnum(member) && type != IJavaElement.TYPE)
		return false;
	final IType declaring= member.getDeclaringType();
	if (declaring == null)
		return false;
	if (!Checks.isAvailable(member))
		return false;
	if (type == IJavaElement.METHOD && declaring.isInterface()) {
		boolean is18OrHigher= JavaModelUtil.is18OrHigher(member.getJavaProject());
		if (!is18OrHigher || !Flags.isStatic(member.getFlags()))
			return false;
	}
	if (type == IJavaElement.METHOD && !JdtFlags.isStatic(member))
		return false;
	if (type == IJavaElement.METHOD && ((IMethod) member).isConstructor())
		return false;
	if (type == IJavaElement.TYPE && !JdtFlags.isStatic(member))
		return false;
	if (!declaring.isInterface() && !JdtFlags.isStatic(member))
		return false;
	return true;
}
 

import org.eclipse.jdt.internal.corext.util.JavaModelUtil; //导入方法依赖的package包/类
/**
 * @param fullyQualifiedTypeName the fully qualified name of the intermediary method
 * @return status for type name. Use {@link #setIntermediaryMethodName(String)} to check for overridden methods.
 */
public RefactoringStatus setIntermediaryTypeName(String fullyQualifiedTypeName) {
	IType target= null;

	try {
		if (fullyQualifiedTypeName.length() == 0)
			return RefactoringStatus.createFatalErrorStatus(RefactoringCoreMessages.IntroduceIndirectionRefactoring_type_not_selected_error);

		// find type (now including secondaries)
		target= getProject().findType(fullyQualifiedTypeName, new NullProgressMonitor());
		if (target == null || !target.exists())
			return RefactoringStatus.createErrorStatus(Messages.format(RefactoringCoreMessages.IntroduceIndirectionRefactoring_type_does_not_exist_error, BasicElementLabels.getJavaElementName(fullyQualifiedTypeName)));
		if (target.isAnnotation())
			return RefactoringStatus.createErrorStatus(RefactoringCoreMessages.IntroduceIndirectionRefactoring_cannot_create_in_annotation);
		if (target.isInterface() && !(JavaModelUtil.is18OrHigher(target.getJavaProject()) && JavaModelUtil.is18OrHigher(getProject())))
			return RefactoringStatus.createErrorStatus(RefactoringCoreMessages.IntroduceIndirectionRefactoring_cannot_create_on_interface);
	} catch (JavaModelException e) {
		return RefactoringStatus.createFatalErrorStatus(RefactoringCoreMessages.IntroduceIndirectionRefactoring_unable_determine_declaring_type);
	}

	if (target.isReadOnly())
		return RefactoringStatus.createErrorStatus(RefactoringCoreMessages.IntroduceIndirectionRefactoring_cannot_create_in_readonly);

	if (target.isBinary())
		return RefactoringStatus.createErrorStatus(RefactoringCoreMessages.IntroduceIndirectionRefactoring_cannot_create_in_binary);

	fIntermediaryType= target;

	return new RefactoringStatus();
}
 

import org.eclipse.jdt.internal.corext.util.JavaModelUtil; //导入方法依赖的package包/类
private static void appendMethodReference(IMethod meth, StringBuffer buf) throws JavaModelException {
	buf.append(meth.getElementName());

	/*
	 * The Javadoc tool for Java SE 8 changed the anchor syntax and now tries to avoid "strange" characters in URLs.
	 * This breaks all clients that directly create such URLs.
	 * We can't know what format is required, so we just guess by the project's compiler compliance.
	 */
	boolean is18OrHigher= JavaModelUtil.is18OrHigher(meth.getJavaProject());
	buf.append(is18OrHigher ? '-' : '(');
	String[] params= meth.getParameterTypes();
	IType declaringType= meth.getDeclaringType();
	boolean isVararg= Flags.isVarargs(meth.getFlags());
	int lastParam= params.length - 1;
	for (int i= 0; i <= lastParam; i++) {
		if (i != 0) {
			buf.append(is18OrHigher ? "-" : ", "); //$NON-NLS-1$ //$NON-NLS-2$
		}
		String curr= Signature.getTypeErasure(params[i]);
		String fullName= JavaModelUtil.getResolvedTypeName(curr, declaringType);
		if (fullName == null) { // e.g. a type parameter "QE;"
			fullName= Signature.toString(Signature.getElementType(curr));
		}
		if (fullName != null) {
			buf.append(fullName);
			int dim= Signature.getArrayCount(curr);
			if (i == lastParam && isVararg) {
				dim--;
			}
			while (dim > 0) {
				buf.append(is18OrHigher ? ":A" : "[]"); //$NON-NLS-1$ //$NON-NLS-2$
				dim--;
			}
			if (i == lastParam && isVararg) {
				buf.append("..."); //$NON-NLS-1$
			}
		}
	}
	buf.append(is18OrHigher ? '-' : ')');
}
 

import org.eclipse.jdt.internal.corext.util.JavaModelUtil; //导入方法依赖的package包/类
public static LambdaExpressionsFix createConvertToLambdaFix(ClassInstanceCreation cic) {
	CompilationUnit root= (CompilationUnit) cic.getRoot();
	if (!JavaModelUtil.is18OrHigher(root.getJavaElement().getJavaProject()))
		return null;

	if (!LambdaExpressionsFix.isFunctionalAnonymous(cic))
		return null;

	CreateLambdaOperation op= new CreateLambdaOperation(Collections.singletonList(cic));
	return new LambdaExpressionsFix(FixMessages.LambdaExpressionsFix_convert_to_lambda_expression, root, new CompilationUnitRewriteOperation[] { op });
}
 

import org.eclipse.jdt.internal.corext.util.JavaModelUtil; //导入方法依赖的package包/类
private static void addNullityAnnotationTypesProposals(ICompilationUnit cu, Name node, Collection<ICommandAccess> proposals) throws CoreException {
	ASTNode parent= node.getParent();
	boolean isAnnotationName= parent instanceof Annotation && ((Annotation) parent).getTypeNameProperty() == node.getLocationInParent();
	if (!isAnnotationName) {
		boolean isImportName= parent instanceof ImportDeclaration && ImportDeclaration.NAME_PROPERTY == node.getLocationInParent();
		if (!isImportName)
			return;
	}
	
	final IJavaProject javaProject= cu.getJavaProject();
	String name= node.getFullyQualifiedName();
	
	String nullityAnnotation= null;
	String[] annotationNameOptions= { JavaCore.COMPILER_NULLABLE_ANNOTATION_NAME, JavaCore.COMPILER_NONNULL_ANNOTATION_NAME, JavaCore.COMPILER_NONNULL_BY_DEFAULT_ANNOTATION_NAME };
	Hashtable<String, String> defaultOptions= JavaCore.getDefaultOptions();
	for (String annotationNameOption : annotationNameOptions) {
		String annotationName= javaProject.getOption(annotationNameOption, true);
		if (! annotationName.equals(defaultOptions.get(annotationNameOption)))
			return;
		if (JavaModelUtil.isMatchingName(name, annotationName)) {
			nullityAnnotation= annotationName;
		}
	}
	if (nullityAnnotation == null)
		return;
	if (javaProject.findType(defaultOptions.get(annotationNameOptions[0])) != null)
		return;
	String version= JavaModelUtil.is18OrHigher(javaProject) ? "2" : "[1.1.0,2.0.0)"; //$NON-NLS-1$ //$NON-NLS-2$
	Bundle[] annotationsBundles= JavaPlugin.getDefault().getBundles("org.eclipse.jdt.annotation", version); //$NON-NLS-1$
	if (annotationsBundles == null)
		return;
	
	if (! cu.getJavaProject().getProject().hasNature("org.eclipse.pde.PluginNature")) //$NON-NLS-1$
		addCopyAnnotationsJarProposal(cu, node, nullityAnnotation, annotationsBundles[0], proposals);
}
 

import org.eclipse.jdt.internal.corext.util.JavaModelUtil; //导入方法依赖的package包/类
@Override
public RefactoringStatus checkPreConditions(IJavaProject project, ICompilationUnit[] compilationUnits, IProgressMonitor monitor) throws CoreException {
	if (!JavaModelUtil.is18OrHigher(project)) {
		return RefactoringStatus.createFatalErrorStatus("Project must be Java 1.8 or higher.");
	}
	return new RefactoringStatus();
}
 

import org.eclipse.jdt.internal.corext.util.JavaModelUtil; //导入方法依赖的package包/类
boolean isValidDestination(ASTNode node) {
	boolean isInterface = node instanceof TypeDeclaration && ((TypeDeclaration) node).isInterface();
	return !(node instanceof AnnotationTypeDeclaration) && !(isInterface && !JavaModelUtil.is18OrHigher(fCUnit.getJavaProject()));
}
 

import org.eclipse.jdt.internal.corext.util.JavaModelUtil; //导入方法依赖的package包/类
private static void addNewMethodProposals(ICompilationUnit cu, CompilationUnit astRoot, Expression sender,
		List<Expression> arguments, boolean isSuperInvocation, ASTNode invocationNode, String methodName,
		Collection<CUCorrectionProposal> proposals) throws JavaModelException {
	ITypeBinding nodeParentType= Bindings.getBindingOfParentType(invocationNode);
	ITypeBinding binding= null;
	if (sender != null) {
		binding= sender.resolveTypeBinding();
	} else {
		binding= nodeParentType;
		if (isSuperInvocation && binding != null) {
			binding= binding.getSuperclass();
		}
	}
	if (binding != null && binding.isFromSource()) {
		ITypeBinding senderDeclBinding= binding.getTypeDeclaration();

		ICompilationUnit targetCU= ASTResolving.findCompilationUnitForBinding(cu, astRoot, senderDeclBinding);
		if (targetCU != null) {
			String label;
			ITypeBinding[] parameterTypes= getParameterTypes(arguments);
			if (parameterTypes != null) {
				String sig = ASTResolving.getMethodSignature(methodName, parameterTypes, false);
				boolean is18OrHigher= JavaModelUtil.is18OrHigher(targetCU.getJavaProject());

				boolean isSenderBindingInterface= senderDeclBinding.isInterface();
				if (nodeParentType == senderDeclBinding) {
					label= Messages.format(CorrectionMessages.UnresolvedElementsSubProcessor_createmethod_description, sig);
				} else {
					label= Messages.format(CorrectionMessages.UnresolvedElementsSubProcessor_createmethod_other_description, new Object[] { sig, BasicElementLabels.getJavaElementName(senderDeclBinding.getName()) } );
				}
				if (is18OrHigher || !isSenderBindingInterface
						|| (nodeParentType != senderDeclBinding && (!(sender instanceof SimpleName) || !((SimpleName) sender).getIdentifier().equals(senderDeclBinding.getName())))) {
					proposals.add(new NewMethodCorrectionProposal(label, targetCU, invocationNode, arguments,
							senderDeclBinding, IProposalRelevance.CREATE_METHOD));
				}

				if (senderDeclBinding.isNested() && cu.equals(targetCU) && sender == null && Bindings.findMethodInHierarchy(senderDeclBinding, methodName, (ITypeBinding[]) null) == null) { // no covering method
					ASTNode anonymDecl= astRoot.findDeclaringNode(senderDeclBinding);
					if (anonymDecl != null) {
						senderDeclBinding= Bindings.getBindingOfParentType(anonymDecl.getParent());
						isSenderBindingInterface= senderDeclBinding.isInterface();
						if (!senderDeclBinding.isAnonymous()) {
							if (is18OrHigher || !isSenderBindingInterface) {
								String[] args = new String[] { sig,
										ASTResolving.getTypeSignature(senderDeclBinding) };
								label= Messages.format(CorrectionMessages.UnresolvedElementsSubProcessor_createmethod_other_description, args);
								proposals.add(new NewMethodCorrectionProposal(label, targetCU, invocationNode,
										arguments, senderDeclBinding, IProposalRelevance.CREATE_METHOD));
							}
						}
					}
				}
			}
		}
	}
}
 

import org.eclipse.jdt.internal.corext.util.JavaModelUtil; //导入方法依赖的package包/类
private int evaluateModifiers(ASTNode targetTypeDecl) {
	if (getSenderBinding().isAnnotation()) {
		return 0;
	}
	boolean isTargetInterface= getSenderBinding().isInterface();
	if (isTargetInterface && !JavaModelUtil.is18OrHigher(getCompilationUnit().getJavaProject())) {
		// only abstract methods are allowed for interface present in less than Java 1.8
		return getInterfaceMethodModifiers(targetTypeDecl, true);
	}
	ASTNode invocationNode= getInvocationNode();
	if (invocationNode instanceof MethodInvocation) {
		int modifiers= 0;
		Expression expression= ((MethodInvocation)invocationNode).getExpression();
		if (expression != null) {
			if (expression instanceof Name && ((Name) expression).resolveBinding().getKind() == IBinding.TYPE) {
				modifiers |= Modifier.STATIC;
			}
		} else if (ASTResolving.isInStaticContext(invocationNode)) {
			modifiers |= Modifier.STATIC;
		}
		ASTNode node= ASTResolving.findParentType(invocationNode);
		boolean isParentInterface= node instanceof TypeDeclaration && ((TypeDeclaration) node).isInterface();
		if (isTargetInterface || isParentInterface) {
			if (expression == null && !targetTypeDecl.equals(node)) {
				modifiers|= Modifier.STATIC;
				if (isTargetInterface) {
					modifiers|= getInterfaceMethodModifiers(targetTypeDecl, false);
				} else {
					modifiers|= Modifier.PROTECTED;
				}
			} else if (modifiers == Modifier.STATIC) {
				modifiers= getInterfaceMethodModifiers(targetTypeDecl, false) | Modifier.STATIC;
			} else {
				modifiers= getInterfaceMethodModifiers(targetTypeDecl, true);
			}
		} else if (targetTypeDecl.equals(node)) {
			modifiers |= Modifier.PRIVATE;
		} else if (node instanceof AnonymousClassDeclaration && ASTNodes.isParent(node, targetTypeDecl)) {
			modifiers |= Modifier.PROTECTED;
			if (ASTResolving.isInStaticContext(node) && expression == null) {
				modifiers |= Modifier.STATIC;
			}
		} else {
			modifiers |= Modifier.PUBLIC;
		}
		return modifiers;
	}
	return Modifier.PUBLIC;
}
 

import org.eclipse.jdt.internal.corext.util.JavaModelUtil; //导入方法依赖的package包/类
private static boolean is18OrHigherInterface(ITypeBinding binding) {
	if (!binding.isInterface() || binding.isAnnotation())
		return false;
	IJavaElement javaElement= binding.getJavaElement();
	return javaElement != null && JavaModelUtil.is18OrHigher(javaElement.getJavaProject());
}