| /******************************************************************************* |
| * Copyright (c) 2008, 2020 IBM Corporation and others. |
| * |
| * This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License 2.0 |
| * which accompanies this distribution, and is available at |
| * https://www.eclipse.org/legal/epl-2.0/ |
| * |
| * SPDX-License-Identifier: EPL-2.0 |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.pde.api.tools.internal.builder; |
| |
| import java.util.List; |
| |
| import org.eclipse.jdt.core.dom.ASTNode; |
| import org.eclipse.jdt.core.dom.ASTVisitor; |
| import org.eclipse.jdt.core.dom.AbstractTypeDeclaration; |
| import org.eclipse.jdt.core.dom.AnnotationTypeDeclaration; |
| import org.eclipse.jdt.core.dom.AnnotationTypeMemberDeclaration; |
| import org.eclipse.jdt.core.dom.BodyDeclaration; |
| import org.eclipse.jdt.core.dom.CompilationUnit; |
| import org.eclipse.jdt.core.dom.EnumConstantDeclaration; |
| import org.eclipse.jdt.core.dom.EnumDeclaration; |
| import org.eclipse.jdt.core.dom.FieldDeclaration; |
| import org.eclipse.jdt.core.dom.Initializer; |
| import org.eclipse.jdt.core.dom.Javadoc; |
| import org.eclipse.jdt.core.dom.MethodDeclaration; |
| import org.eclipse.jdt.core.dom.RecordDeclaration; |
| import org.eclipse.jdt.core.dom.TagElement; |
| import org.eclipse.jdt.core.dom.TextElement; |
| import org.eclipse.jdt.core.dom.TypeDeclaration; |
| import org.eclipse.jdt.core.dom.VariableDeclarationFragment; |
| import org.eclipse.pde.api.tools.internal.util.Util; |
| |
| /** |
| * An AST visitor used to find missing or incorrect @since tags |
| * |
| * @since 1.0.0 |
| */ |
| public class SinceTagChecker extends ASTVisitor { |
| |
| private static final int ABORT = 0x01; |
| private static final int MISSING = 0x02; |
| private static final int HAS_JAVA_DOC = 0x04; |
| private static final int HAS_NO_COMMENT = 0x10; |
| |
| private int nameStart; |
| int bits; |
| private String sinceVersion; |
| |
| /** |
| * Constructor |
| * |
| * @param nameStart |
| */ |
| public SinceTagChecker(int nameStart) { |
| this.nameStart = nameStart; |
| } |
| |
| @Override |
| public boolean visit(CompilationUnit compilationUnit) { |
| return true; |
| } |
| |
| @Override |
| public boolean visit(VariableDeclarationFragment node) { |
| if ((this.bits & ABORT) != 0) { |
| return false; |
| } |
| if (node.getName().getStartPosition() == this.nameStart) { |
| this.bits |= ABORT; |
| ASTNode parent = node.getParent(); |
| if (parent.getNodeType() == ASTNode.FIELD_DECLARATION) { |
| FieldDeclaration fieldDeclaration = (FieldDeclaration) parent; |
| processJavadoc(fieldDeclaration); |
| } |
| } |
| return false; |
| } |
| |
| @Override |
| public boolean visit(EnumDeclaration node) { |
| return visitAbstractTypeDeclaration(node); |
| } |
| |
| @Override |
| public boolean visit(TypeDeclaration node) { |
| return visitAbstractTypeDeclaration(node); |
| } |
| |
| @Override |
| public boolean visit(RecordDeclaration node) { |
| return visitAbstractTypeDeclaration(node); |
| } |
| |
| /** |
| * @param declaration |
| * @return |
| */ |
| private boolean visitAbstractTypeDeclaration(AbstractTypeDeclaration declaration) { |
| if ((this.bits & ABORT) != 0) { |
| return false; |
| } |
| if (declaration.getName().getStartPosition() == this.nameStart) { |
| this.bits |= ABORT; |
| processJavadoc(declaration); |
| } |
| return true; |
| } |
| |
| @Override |
| public boolean visit(AnnotationTypeDeclaration node) { |
| return visitAbstractTypeDeclaration(node); |
| } |
| |
| @Override |
| public boolean visit(MethodDeclaration node) { |
| if ((this.bits & ABORT) != 0) { |
| return false; |
| } |
| if (node.getName().getStartPosition() == this.nameStart) { |
| this.bits |= ABORT; |
| processJavadoc(node); |
| } |
| return false; |
| } |
| |
| @Override |
| public boolean visit(AnnotationTypeMemberDeclaration node) { |
| if ((this.bits & ABORT) != 0) { |
| return false; |
| } |
| if (node.getName().getStartPosition() == this.nameStart) { |
| this.bits |= ABORT; |
| processJavadoc(node); |
| } |
| return false; |
| } |
| |
| @Override |
| public boolean visit(Initializer node) { |
| return false; |
| } |
| |
| @Override |
| public boolean visit(EnumConstantDeclaration node) { |
| if ((this.bits & ABORT) != 0) { |
| return false; |
| } |
| if (node.getName().getStartPosition() == this.nameStart) { |
| this.bits |= ABORT; |
| processJavadoc(node); |
| } |
| return false; |
| } |
| |
| /** |
| * Processes a javadoc tag |
| * |
| * @param bodyDeclaration |
| */ |
| private void processJavadoc(BodyDeclaration bodyDeclaration) { |
| Javadoc javadoc = bodyDeclaration.getJavadoc(); |
| boolean found = false; |
| if (javadoc != null) { |
| this.bits |= HAS_JAVA_DOC; |
| List<TagElement> tags = javadoc.tags(); |
| for (TagElement element : tags) { |
| String tagName = element.getTagName(); |
| if (TagElement.TAG_SINCE.equals(tagName)) { |
| // @since is present |
| // check if valid |
| found = true; |
| List<ASTNode> fragments = element.fragments(); |
| if (fragments.size() >= 1) { |
| ASTNode fragment = fragments.get(0); |
| if (fragment.getNodeType() == ASTNode.TEXT_ELEMENT) { |
| this.sinceVersion = ((TextElement) fragment).getText(); |
| } |
| } else { |
| this.sinceVersion = Util.EMPTY_STRING; |
| } |
| break; |
| } |
| } |
| if (!found) { |
| this.bits |= MISSING; |
| } |
| } else { |
| this.bits |= HAS_NO_COMMENT; |
| } |
| } |
| |
| /** |
| * @return if the javadoc tag is missing |
| */ |
| public boolean isMissing() { |
| return (this.bits & MISSING) != 0; |
| } |
| |
| /** |
| * @return if there is no javadoc tag |
| */ |
| public boolean hasNoComment() { |
| return (this.bits & HAS_NO_COMMENT) != 0; |
| } |
| |
| /** |
| * @return if there already is a doc comment |
| */ |
| public boolean hasJavadocComment() { |
| return (this.bits & HAS_JAVA_DOC) != 0; |
| } |
| |
| /** |
| * @return the version the should be placed in the tag |
| */ |
| public String getSinceVersion() { |
| if (this.sinceVersion != null) { |
| return this.sinceVersion.trim(); |
| } |
| return null; |
| } |
| } |