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| package net.sourceforge.pmd.rules.strings; |
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| |
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| import net.sourceforge.pmd.AbstractRule; |
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4 |
| import net.sourceforge.pmd.ast.ASTAdditiveExpression; |
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| import net.sourceforge.pmd.ast.ASTAllocationExpression; |
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| import net.sourceforge.pmd.ast.ASTArrayDimsAndInits; |
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| import net.sourceforge.pmd.ast.ASTClassOrInterfaceType; |
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| import net.sourceforge.pmd.ast.ASTExpression; |
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| import net.sourceforge.pmd.ast.ASTName; |
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| import net.sourceforge.pmd.symboltable.NameDeclaration; |
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| import net.sourceforge.pmd.symboltable.VariableNameDeclaration; |
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| |
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| import java.util.List; |
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| |
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| public class StringInstantiation extends AbstractRule { |
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| |
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17 |
12
| public Object visit(ASTAllocationExpression node, Object data) {
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18 |
12
| if (!(node.jjtGetChild(0) instanceof ASTClassOrInterfaceType)) {
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19 |
3
| return data;
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| } |
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21 |
| |
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22 |
9
| ASTClassOrInterfaceType clz = (ASTClassOrInterfaceType) node.jjtGetChild(0);
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23 |
9
| if (!clz.hasImageEqualTo("String")) {
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24 |
1
| return data;
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| } |
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| |
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27 |
8
| List exp = node.findChildrenOfType(ASTExpression.class);
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28 |
8
| if (exp.size() >= 2) {
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29 |
2
| return data;
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30 |
| } |
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31 |
| |
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32 |
6
| if (node.getFirstChildOfType(ASTArrayDimsAndInits.class) != null || node.getFirstChildOfType(ASTAdditiveExpression.class) != null) {
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33 |
1
| return data;
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34 |
| } |
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35 |
| |
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36 |
5
| ASTName name = (ASTName) node.getFirstChildOfType(ASTName.class);
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37 |
| |
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38 |
5
| if (name == null) {
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39 |
3
| addViolation(data, node);
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40 |
3
| return data;
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| } |
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42 |
| |
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43 |
2
| NameDeclaration nd = name.getNameDeclaration();
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44 |
2
| if (!(nd instanceof VariableNameDeclaration)) {
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45 |
0
| return data;
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| } |
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47 |
| |
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48 |
2
| VariableNameDeclaration vnd = (VariableNameDeclaration) nd;
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49 |
| |
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50 |
2
| if (vnd == null || vnd.getTypeImage().equals("String")) {
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51 |
1
| addViolation(data, node);
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52 |
| } |
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53 |
2
| return data;
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54 |
| } |
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55 |
| } |