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1
11 package org.eclipse.jdt.internal.corext.refactoring.code;
12
13 import java.util.ArrayList  ;
14 import java.util.List ;
15
16 import org.eclipse.jdt.core.dom.ASTNode;
17 import org.eclipse.jdt.core.dom.ITypeBinding;
18 import org.eclipse.jdt.core.dom.SingleVariableDeclaration;
19
20 import org.eclipse.jdt.internal.corext.refactoring.code.flow.FlowInfo;
21
22 class ParameterData {
23
24 public static final String PROPERTY= ParameterData.class.getName();
25
26 private SingleVariableDeclaration fDeclaration;
27 private int fAccessMode;
28 private List fReferences;
29 private int fOperatorPrecedence;
30
31 public ParameterData(SingleVariableDeclaration decl) {
32 super();
33 fDeclaration= decl;
34 fAccessMode= FlowInfo.UNUSED;
35 fReferences= new ArrayList (2);
36 fOperatorPrecedence= -1;
37 }
38
39 public String getName() {
40 return fDeclaration.getName().getIdentifier();
41 }
42
43 public ITypeBinding getTypeBinding() {
44 return fDeclaration.resolveBinding().getType();
45 }
46
47 public void addReference(ASTNode node) {
48 fReferences.add(node);
49 }
50
51 public List references() {
52 return fReferences;
53 }
54
55 public void setAccessMode(int mode) {
56 fAccessMode= mode;
57 }
58
59 public boolean isUnused() {
60 return fAccessMode == FlowInfo.UNUSED;
61 }
62
63 public boolean isReadOnly() {
64 return (fAccessMode & (FlowInfo.READ | FlowInfo.READ_POTENTIAL)) != 0;
65 }
66
67 public boolean isWrite() {
68 return (fAccessMode & (FlowInfo.WRITE | FlowInfo.WRITE_POTENTIAL | FlowInfo.UNKNOWN)) != 0;
69 }
70
71 public int getSimplifiedAccessMode() {
72 if (isWrite())
73 return FlowInfo.WRITE;
74 if (isReadOnly())
75 return FlowInfo.READ;
76 return FlowInfo.UNUSED;
77 }
78
79 public int getNumberOfAccesses() {
80 return fReferences.size();
81 }
82
83 public boolean needsEvaluation() {
84 if (fReferences.size() <= 1)
85 return false;
86 return true;
87 }
88
89 public void setOperatorPrecedence(ASTNode node, int precedence) {
90 setOperatorPrecedence(precedence);
91 }
92
93 private void setOperatorPrecedence(int newValue) {
94 if (newValue == -1) {
95 fOperatorPrecedence= newValue;
96 } else if (fOperatorPrecedence == -1) {
97 fOperatorPrecedence= newValue;
98 } else {
99 fOperatorPrecedence= Math.min(fOperatorPrecedence, newValue);
100 }
101 }
102
103 public int getOperatorPrecedence() {
104 return fOperatorPrecedence;
105 }
106 }
107 |
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