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| package net.sourceforge.pmd.typeresolution.rules; |
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| import net.sourceforge.pmd.AbstractRule; |
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| import net.sourceforge.pmd.ast.ASTBlock; |
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| import net.sourceforge.pmd.ast.ASTBlockStatement; |
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| import net.sourceforge.pmd.ast.ASTClassOrInterfaceDeclaration; |
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| import net.sourceforge.pmd.ast.ASTClassOrInterfaceType; |
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| import net.sourceforge.pmd.ast.ASTExtendsList; |
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| import net.sourceforge.pmd.ast.ASTFormalParameters; |
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| import net.sourceforge.pmd.ast.ASTImplementsList; |
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| import net.sourceforge.pmd.ast.ASTMethodDeclaration; |
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| import net.sourceforge.pmd.ast.ASTMethodDeclarator; |
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| import net.sourceforge.pmd.ast.SimpleNode; |
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| import java.util.Arrays; |
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| import java.util.List; |
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| public class CloneMethodMustImplementCloneable extends AbstractRule { |
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8
| public Object visit(ASTClassOrInterfaceDeclaration node, Object data) {
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| ASTImplementsList impl = (ASTImplementsList) node.getFirstChildOfType(ASTImplementsList.class);
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8
| if (impl != null && impl.jjtGetParent().equals(node)) {
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3
| for (int ix = 0; ix < impl.jjtGetNumChildren(); ix++) {
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| ASTClassOrInterfaceType type = (ASTClassOrInterfaceType) impl.jjtGetChild(ix);
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| if (type.getType() == null) {
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| if ("Cloneable".equals(type.getImage())) {
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| return data;
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| } |
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0
| } else if (type.getType().equals(Cloneable.class)) {
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0
| return data;
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| } else { |
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0
| List implementors = Arrays.asList(type.getType().getInterfaces());
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0
| if (implementors.contains(Cloneable.class)) {
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| return data;
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| } |
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| } |
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| } |
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| } |
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| if (node.jjtGetNumChildren() != 0 && node.jjtGetChild(0).getClass().equals(ASTExtendsList.class)) {
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| ASTClassOrInterfaceType type = (ASTClassOrInterfaceType) ((SimpleNode) node.jjtGetChild(0)).jjtGetChild(0);
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| Class clazz = type.getType();
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| if (clazz != null && clazz.equals(Cloneable.class)) {
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| return data;
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| } |
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1
| while (clazz != null && !Object.class.equals(clazz)) {
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1
| if (Arrays.asList(clazz.getInterfaces()).contains(Cloneable.class)) {
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1
| return data;
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| } |
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0
| clazz = clazz.getSuperclass();
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| } |
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| } |
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| return super.visit(node, data);
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| } |
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| public Object visit(ASTMethodDeclaration node, Object data) {
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3
| if (node.isFinal()) {
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| List blocks = node.findChildrenOfType(ASTBlock.class);
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1
| if (blocks.size() == 1) {
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| blocks = node.findChildrenOfType(ASTBlockStatement.class);
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| if (blocks.size() == 1) {
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| ASTBlockStatement block = (ASTBlockStatement) blocks.get(0);
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| ASTClassOrInterfaceType type = (ASTClassOrInterfaceType) block.getFirstChildOfType(ASTClassOrInterfaceType.class);
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1
| if (type != null && type.getType() != null && type.getNthParent(9).equals(node) && type.getType().equals(CloneNotSupportedException.class)) {
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| return data;
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1
| } else if (type != null && type.getType() == null && "CloneNotSupportedException".equals(type.getImage())) {
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1
| return data;
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| } |
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| } |
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| } |
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| } |
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| return super.visit(node, data);
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| } |
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| public Object visit(ASTMethodDeclarator node, Object data) {
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| if (!"clone".equals(node.getImage())) {
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| return data;
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| } |
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| int countParams = ((ASTFormalParameters) node.jjtGetChild(0)).jjtGetNumChildren();
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2
| if (countParams != 0) {
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| return data;
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| } |
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| addViolation(data, node);
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| return data;
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| } |
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| } |