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1
4 package net.sourceforge.pmd.symboltable;
5
6 import net.sourceforge.pmd.ast.ASTArguments;
7 import net.sourceforge.pmd.ast.ASTName;
8 import net.sourceforge.pmd.ast.ASTPrimaryExpression;
9 import net.sourceforge.pmd.ast.ASTPrimaryPrefix;
10 import net.sourceforge.pmd.ast.ASTPrimarySuffix;
11 import net.sourceforge.pmd.ast.SimpleNode;
12
13 import java.util.Iterator  ;
14 import java.util.LinkedList ;
15 import java.util.List ;
16 import java.util.StringTokenizer ;
17
18 public class NameFinder {
19
20 private LinkedList names = new LinkedList ();
21
22 public NameFinder(ASTPrimaryExpression node) {
23 ASTPrimaryPrefix prefix = (ASTPrimaryPrefix) node.jjtGetChild(0);
24 if (prefix.usesSuperModifier()) {
25 add(new NameOccurrence(prefix, "super"));
26 } else if (prefix.usesThisModifier()) {
27 add(new NameOccurrence(prefix, "this"));
28 }
29 for (int i = 0; i < node.jjtGetNumChildren(); i++) {
30 checkForNameChild((SimpleNode) node.jjtGetChild(i));
31 }
32 }
33
34 public List getNames() {
35 return names;
36 }
37
38 private void checkForNameChild(SimpleNode node) {
39 if (node.getImage() != null) {
40 add(new NameOccurrence(node, node.getImage()));
41 }
42 if (node.jjtGetNumChildren() > 0 && node.jjtGetChild(0) instanceof ASTName) {
43 ASTName grandchild = (ASTName) node.jjtGetChild(0);
44 for (StringTokenizer st = new StringTokenizer (grandchild.getImage(), "."); st.hasMoreTokens();) {
45 add(new NameOccurrence(grandchild, st.nextToken()));
46 }
47 }
48 if (node instanceof ASTPrimarySuffix && ((ASTPrimarySuffix) node).isArguments()) {
49 NameOccurrence occurrence = (NameOccurrence) names.getLast();
50 occurrence.setIsMethodOrConstructorInvocation();
51 ASTArguments args = (ASTArguments) ((ASTPrimarySuffix) node).jjtGetChild(0);
52 occurrence.setArgumentCount(args.getArgumentCount());
53
54 }
55 }
56
57 private void add(NameOccurrence name) {
58 names.add(name);
59 if (names.size() > 1) {
60 NameOccurrence qualifiedName = (NameOccurrence) names.get(names.size() - 2);
61 qualifiedName.setNameWhichThisQualifies(name);
62 }
63 }
64
65
66 public String toString() {
67 StringBuffer result = new StringBuffer ();
68 for (Iterator i = names.iterator(); i.hasNext();) {
69 NameOccurrence occ = (NameOccurrence) i.next();
70 result.append(occ.getImage());
71 }
72 return result.toString();
73 }
74 }
75 |
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