Examples with ASTName net.sourceforge.pmd.lang.java.ast.ASTName used on opensource projects

Example 41 with ASTName

use of net.sourceforge.pmd.lang.java.ast.ASTName in project pmd by pmd.

the class BooleanInstantiationRule method visit.

@Override
public Object visit(ASTPrimaryPrefix node, Object data) {
    if (!customBoolean) {
        if (node.jjtGetNumChildren() == 0 || !(node.jjtGetChild(0) instanceof ASTName)) {
            return super.visit(node, data);
        }
        if ("Boolean.valueOf".equals(((ASTName) node.jjtGetChild(0)).getImage()) || "java.lang.Boolean.valueOf".equals(((ASTName) node.jjtGetChild(0)).getImage())) {
            ASTPrimaryExpression parent = (ASTPrimaryExpression) node.jjtGetParent();
            ASTPrimarySuffix suffix = parent.getFirstDescendantOfType(ASTPrimarySuffix.class);
            if (suffix == null) {
                return super.visit(node, data);
            }
            ASTPrimaryPrefix prefix = suffix.getFirstDescendantOfType(ASTPrimaryPrefix.class);
            if (prefix == null) {
                return super.visit(node, data);
            }
            if (prefix.hasDescendantOfType(ASTBooleanLiteral.class)) {
                super.addViolation(data, node);
                return data;
            }
            ASTLiteral literal = prefix.getFirstDescendantOfType(ASTLiteral.class);
            if (literal != null && ("\"true\"".equals(literal.getImage()) || "\"false\"".equals(literal.getImage()))) {
                super.addViolation(data, node);
                return data;
            }
        }
    }
    return super.visit(node, data);
}

Example 42 with ASTName

use of net.sourceforge.pmd.lang.java.ast.ASTName in project pmd by pmd.

the class UnnecessaryCaseChangeRule method getBadPrefixOrNull.

private int getBadPrefixOrNull(ASTPrimaryExpression exp, int childrenCount) {
    // verify PrimaryPrefix/Name[ends-with(@Image, 'toUpperCase']
    for (int i = 0; i < childrenCount - 3; i++) {
        Node child = exp.jjtGetChild(i);
        String image;
        if (child instanceof ASTPrimaryPrefix) {
            if (child.jjtGetNumChildren() != 1 || !(child.jjtGetChild(0) instanceof ASTName)) {
                continue;
            }
            ASTName name = (ASTName) child.jjtGetChild(0);
            image = name.getImage();
        } else if (child instanceof ASTPrimarySuffix) {
            image = ((ASTPrimarySuffix) child).getImage();
        } else {
            continue;
        }
        if (image == null || !(image.endsWith("toUpperCase") || image.endsWith("toLowerCase"))) {
            continue;
        } else {
            return i;
        }
    }
    return -1;
}

Example 43 with ASTName

use of net.sourceforge.pmd.lang.java.ast.ASTName in project pmd by pmd.

the class UnnecessaryCastRule method process.

private Object process(Node node, Object data) {
    ASTClassOrInterfaceType cit = node.getFirstDescendantOfType(ASTClassOrInterfaceType.class);
    if (cit == null || !implClassNames.contains(cit.getImage())) {
        return data;
    }
    cit = cit.getFirstDescendantOfType(ASTClassOrInterfaceType.class);
    if (cit == null) {
        return data;
    }
    ASTVariableDeclaratorId decl = node.getFirstDescendantOfType(ASTVariableDeclaratorId.class);
    List<NameOccurrence> usages = decl.getUsages();
    for (NameOccurrence no : usages) {
        ASTName name = (ASTName) no.getLocation();
        Node n = name.jjtGetParent().jjtGetParent().jjtGetParent();
        if (n instanceof ASTCastExpression) {
            addViolation(data, n);
        }
    }
    return null;
}

Example 44 with ASTName

use of net.sourceforge.pmd.lang.java.ast.ASTName in project pmd by pmd.

the class SignatureDeclareThrowsExceptionRule method checkExceptions.

/**
 * Search the list of thrown exceptions for Exception
 */
private void checkExceptions(Node method, Object o) {
    List<ASTName> exceptionList = Collections.emptyList();
    ASTNameList nameList = method.getFirstChildOfType(ASTNameList.class);
    if (nameList != null) {
        exceptionList = nameList.findDescendantsOfType(ASTName.class);
    }
    if (!exceptionList.isEmpty()) {
        evaluateExceptions(exceptionList, o);
    }
}

Example 45 with ASTName

use of net.sourceforge.pmd.lang.java.ast.ASTName in project pmd by pmd.

the class UselessOverridingMethodRule method visit.

@Override
public Object visit(ASTMethodDeclaration node, Object data) {
    // them.
    if (node.isAbstract() || node.isFinal() || node.isNative() || node.isSynchronized()) {
        return super.visit(node, data);
    }
    // implement them anyway ( see bug 1522517)
    if (CLONE.equals(node.getMethodName()) && node.isPublic() && !this.hasArguments(node) && this.isMethodType(node, OBJECT) && this.isMethodThrowingType(node, exceptions)) {
        return super.visit(node, data);
    }
    ASTBlock block = node.getBlock();
    if (block == null) {
        return super.visit(node, data);
    }
    // Only process functions with one BlockStatement
    if (block.jjtGetNumChildren() != 1 || block.findDescendantsOfType(ASTStatement.class).size() != 1) {
        return super.visit(node, data);
    }
    Node statement = block.jjtGetChild(0).jjtGetChild(0);
    if (statement.jjtGetChild(0).jjtGetNumChildren() == 0) {
        // skips empty return statements
        return data;
    }
    Node statementGrandChild = statement.jjtGetChild(0).jjtGetChild(0);
    ASTPrimaryExpression primaryExpression;
    if (statementGrandChild instanceof ASTPrimaryExpression) {
        primaryExpression = (ASTPrimaryExpression) statementGrandChild;
    } else {
        List<ASTPrimaryExpression> primaryExpressions = findFirstDegreeChildrenOfType(statementGrandChild, ASTPrimaryExpression.class);
        if (primaryExpressions.size() != 1) {
            return super.visit(node, data);
        }
        primaryExpression = primaryExpressions.get(0);
    }
    ASTPrimaryPrefix primaryPrefix = findFirstDegreeChildrenOfType(primaryExpression, ASTPrimaryPrefix.class).get(0);
    if (!primaryPrefix.usesSuperModifier()) {
        return super.visit(node, data);
    }
    List<ASTPrimarySuffix> primarySuffixList = findFirstDegreeChildrenOfType(primaryExpression, ASTPrimarySuffix.class);
    if (primarySuffixList.size() != 2) {
        // extra method call on result of super method
        return super.visit(node, data);
    }
    ASTMethodDeclarator methodDeclarator = findFirstDegreeChildrenOfType(node, ASTMethodDeclarator.class).get(0);
    ASTPrimarySuffix primarySuffix = primarySuffixList.get(0);
    if (!primarySuffix.hasImageEqualTo(methodDeclarator.getImage())) {
        return super.visit(node, data);
    }
    // Process arguments
    primarySuffix = primarySuffixList.get(1);
    ASTArguments arguments = (ASTArguments) primarySuffix.jjtGetChild(0);
    ASTFormalParameters formalParameters = (ASTFormalParameters) methodDeclarator.jjtGetChild(0);
    if (formalParameters.jjtGetNumChildren() != arguments.jjtGetNumChildren()) {
        return super.visit(node, data);
    }
    if (!ignoreAnnotations) {
        ASTClassOrInterfaceBodyDeclaration parent = (ASTClassOrInterfaceBodyDeclaration) node.jjtGetParent();
        for (int i = 0; i < parent.jjtGetNumChildren(); i++) {
            Node n = parent.jjtGetChild(i);
            if (n instanceof ASTAnnotation) {
                if (n.jjtGetChild(0) instanceof ASTMarkerAnnotation) {
                    // @Override is ignored
                    if ("Override".equals(((ASTName) n.jjtGetChild(0).jjtGetChild(0)).getImage())) {
                        continue;
                    }
                }
                return super.visit(node, data);
            }
        }
    }
    if (arguments.jjtGetNumChildren() == 0) {
        addViolation(data, node, getMessage());
    } else {
        ASTArgumentList argumentList = (ASTArgumentList) arguments.jjtGetChild(0);
        for (int i = 0; i < argumentList.jjtGetNumChildren(); i++) {
            Node expressionChild = argumentList.jjtGetChild(i).jjtGetChild(0);
            if (!(expressionChild instanceof ASTPrimaryExpression) || expressionChild.jjtGetNumChildren() != 1) {
                // The arguments are not simply passed through
                return super.visit(node, data);
            }
            ASTPrimaryExpression argumentPrimaryExpression = (ASTPrimaryExpression) expressionChild;
            ASTPrimaryPrefix argumentPrimaryPrefix = (ASTPrimaryPrefix) argumentPrimaryExpression.jjtGetChild(0);
            if (argumentPrimaryPrefix.jjtGetNumChildren() == 0) {
                // The arguments are not simply passed through (using "this" for instance)
                return super.visit(node, data);
            }
            Node argumentPrimaryPrefixChild = argumentPrimaryPrefix.jjtGetChild(0);
            if (!(argumentPrimaryPrefixChild instanceof ASTName)) {
                // The arguments are not simply passed through
                return super.visit(node, data);
            }
            if (formalParameters.jjtGetNumChildren() < i + 1) {
                // different number of args
                return super.visit(node, data);
            }
            ASTName argumentName = (ASTName) argumentPrimaryPrefixChild;
            ASTFormalParameter formalParameter = (ASTFormalParameter) formalParameters.jjtGetChild(i);
            ASTVariableDeclaratorId variableId = findFirstDegreeChildrenOfType(formalParameter, ASTVariableDeclaratorId.class).get(0);
            if (!argumentName.hasImageEqualTo(variableId.getImage())) {
                // The arguments are not simply passed through
                return super.visit(node, data);
            }
        }
        // All arguments are passed through directly
        addViolation(data, node, getMessage());
    }
    return super.visit(node, data);
}