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1
11 package org.eclipse.jdt.internal.ui.fix;
12
13
14 import java.util.ArrayList  ;
15 import java.util.Hashtable ;
16 import java.util.List ;
17 import java.util.Map ;
18
19 import org.eclipse.core.runtime.CoreException;
20
21 import org.eclipse.jdt.core.ICompilationUnit;
22 import org.eclipse.jdt.core.JavaCore;
23 import org.eclipse.jdt.core.compiler.IProblem;
24 import org.eclipse.jdt.core.dom.CompilationUnit;
25
26 import org.eclipse.jdt.internal.corext.fix.CleanUpConstants;
27 import org.eclipse.jdt.internal.corext.fix.IFix;
28 import org.eclipse.jdt.internal.corext.fix.UnusedCodeFix;
29
30 import org.eclipse.jdt.ui.text.java.IProblemLocation;
31
32
37 public class UnusedCodeCleanUp extends AbstractCleanUp {
38
39 public UnusedCodeCleanUp(Map options) {
40 super(options);
41 }
42
43 public UnusedCodeCleanUp() {
44 super();
45 }
46
47
50 public boolean requireAST(ICompilationUnit unit) throws CoreException {
51 boolean removeUnuseMembers= isEnabled(CleanUpConstants.REMOVE_UNUSED_CODE_PRIVATE_MEMBERS);
52
53 return removeUnuseMembers && isEnabled(CleanUpConstants.REMOVE_UNUSED_CODE_PRIVATE_METHODS) ||
54 removeUnuseMembers && isEnabled(CleanUpConstants.REMOVE_UNUSED_CODE_PRIVATE_CONSTRUCTORS) ||
55 removeUnuseMembers && isEnabled(CleanUpConstants.REMOVE_UNUSED_CODE_PRIVATE_FELDS) ||
56 removeUnuseMembers && isEnabled(CleanUpConstants.REMOVE_UNUSED_CODE_PRIVATE_TYPES) ||
57 isEnabled(CleanUpConstants.REMOVE_UNUSED_CODE_LOCAL_VARIABLES) ||
58 isEnabled(CleanUpConstants.REMOVE_UNUSED_CODE_IMPORTS) && !isEnabled(CleanUpConstants.ORGANIZE_IMPORTS);
59 }
60
61 public IFix createFix(CompilationUnit compilationUnit) throws CoreException {
62 if (compilationUnit == null)
63 return null;
64
65 boolean removeUnuseMembers= isEnabled(CleanUpConstants.REMOVE_UNUSED_CODE_PRIVATE_MEMBERS);
66
67 return UnusedCodeFix.createCleanUp(compilationUnit,
68 removeUnuseMembers && isEnabled(CleanUpConstants.REMOVE_UNUSED_CODE_PRIVATE_METHODS),
69 removeUnuseMembers && isEnabled(CleanUpConstants.REMOVE_UNUSED_CODE_PRIVATE_CONSTRUCTORS),
70 removeUnuseMembers && isEnabled(CleanUpConstants.REMOVE_UNUSED_CODE_PRIVATE_FELDS),
71 removeUnuseMembers && isEnabled(CleanUpConstants.REMOVE_UNUSED_CODE_PRIVATE_TYPES),
72 isEnabled(CleanUpConstants.REMOVE_UNUSED_CODE_LOCAL_VARIABLES),
73 isEnabled(CleanUpConstants.REMOVE_UNUSED_CODE_IMPORTS) && !isEnabled(CleanUpConstants.ORGANIZE_IMPORTS),
74 false);
75 }
76
77
78
81 public IFix createFix(CompilationUnit compilationUnit, IProblemLocation[] problems) throws CoreException {
82 if (compilationUnit == null)
83 return null;
84
85 boolean removeMembers= isEnabled(CleanUpConstants.REMOVE_UNUSED_CODE_PRIVATE_MEMBERS);
86 return UnusedCodeFix.createCleanUp(compilationUnit, problems,
87 removeMembers && isEnabled(CleanUpConstants.REMOVE_UNUSED_CODE_PRIVATE_METHODS),
88 removeMembers && isEnabled(CleanUpConstants.REMOVE_UNUSED_CODE_PRIVATE_CONSTRUCTORS),
89 removeMembers && isEnabled(CleanUpConstants.REMOVE_UNUSED_CODE_PRIVATE_FELDS),
90 removeMembers && isEnabled(CleanUpConstants.REMOVE_UNUSED_CODE_PRIVATE_TYPES),
91 isEnabled(CleanUpConstants.REMOVE_UNUSED_CODE_LOCAL_VARIABLES),
92 isEnabled(CleanUpConstants.REMOVE_UNUSED_CODE_IMPORTS) && !isEnabled(CleanUpConstants.ORGANIZE_IMPORTS),
93 false);
94 }
95
96 public Map getRequiredOptions() {
97 Map options= new Hashtable ();
98
99 if (isEnabled(CleanUpConstants.REMOVE_UNUSED_CODE_IMPORTS) && !isEnabled(CleanUpConstants.ORGANIZE_IMPORTS))
100 options.put(JavaCore.COMPILER_PB_UNUSED_IMPORT, JavaCore.WARNING);
101
102 boolean removeMembers= isEnabled(CleanUpConstants.REMOVE_UNUSED_CODE_PRIVATE_MEMBERS);
103 if (removeMembers && (
104 isEnabled(CleanUpConstants.REMOVE_UNUSED_CODE_PRIVATE_METHODS) ||
105 isEnabled(CleanUpConstants.REMOVE_UNUSED_CODE_PRIVATE_CONSTRUCTORS) ||
106 isEnabled(CleanUpConstants.REMOVE_UNUSED_CODE_PRIVATE_FELDS) ||
107 isEnabled(CleanUpConstants.REMOVE_UNUSED_CODE_PRIVATE_TYPES)))
108 options.put(JavaCore.COMPILER_PB_UNUSED_PRIVATE_MEMBER, JavaCore.WARNING);
109
110 if (isEnabled(CleanUpConstants.REMOVE_UNUSED_CODE_LOCAL_VARIABLES))
111 options.put(JavaCore.COMPILER_PB_UNUSED_LOCAL, JavaCore.WARNING);
112
113 return options;
114 }
115
116
119 public String [] getDescriptions() {
120 List result= new ArrayList ();
121 if (isEnabled(CleanUpConstants.REMOVE_UNUSED_CODE_IMPORTS))
122 result.add(MultiFixMessages.UnusedCodeMultiFix_RemoveUnusedImport_description);
123 if (isEnabled(CleanUpConstants.REMOVE_UNUSED_CODE_PRIVATE_MEMBERS) && isEnabled(CleanUpConstants.REMOVE_UNUSED_CODE_PRIVATE_METHODS))
124 result.add(MultiFixMessages.UnusedCodeMultiFix_RemoveUnusedMethod_description);
125 if (isEnabled(CleanUpConstants.REMOVE_UNUSED_CODE_PRIVATE_MEMBERS) && isEnabled(CleanUpConstants.REMOVE_UNUSED_CODE_PRIVATE_CONSTRUCTORS))
126 result.add(MultiFixMessages.UnusedCodeMultiFix_RemoveUnusedConstructor_description);
127 if (isEnabled(CleanUpConstants.REMOVE_UNUSED_CODE_PRIVATE_MEMBERS) && isEnabled(CleanUpConstants.REMOVE_UNUSED_CODE_PRIVATE_TYPES))
128 result.add(MultiFixMessages.UnusedCodeMultiFix_RemoveUnusedType_description);
129 if (isEnabled(CleanUpConstants.REMOVE_UNUSED_CODE_PRIVATE_MEMBERS) && isEnabled(CleanUpConstants.REMOVE_UNUSED_CODE_PRIVATE_FELDS))
130 result.add(MultiFixMessages.UnusedCodeMultiFix_RemoveUnusedField_description);
131 if (isEnabled(CleanUpConstants.REMOVE_UNUSED_CODE_LOCAL_VARIABLES))
132 result.add(MultiFixMessages.UnusedCodeMultiFix_RemoveUnusedVariable_description);
133 return (String [])result.toArray(new String [result.size()]);
134 }
135
136
139 public String getPreview() {
140 StringBuffer buf= new StringBuffer ();
141
142 if (isEnabled(CleanUpConstants.REMOVE_UNUSED_CODE_IMPORTS)) {
143 } else {
144 buf.append("import pack.Bar;\n"); }
146 buf.append("class Example {\n"); if (isEnabled(CleanUpConstants.REMOVE_UNUSED_CODE_PRIVATE_MEMBERS) && isEnabled(CleanUpConstants.REMOVE_UNUSED_CODE_PRIVATE_TYPES)) {
148 } else {
149 buf.append(" private class Sub {}\n"); }
151 buf.append(" public Example(boolean b) {}\n"); if (isEnabled(CleanUpConstants.REMOVE_UNUSED_CODE_PRIVATE_MEMBERS) && isEnabled(CleanUpConstants.REMOVE_UNUSED_CODE_PRIVATE_CONSTRUCTORS)) {
153 } else {
154 buf.append(" private Example() {}\n"); }
156 if (isEnabled(CleanUpConstants.REMOVE_UNUSED_CODE_PRIVATE_MEMBERS) && isEnabled(CleanUpConstants.REMOVE_UNUSED_CODE_PRIVATE_FELDS)) {
157 } else {
158 buf.append(" private int fField;\n"); }
160 if (isEnabled(CleanUpConstants.REMOVE_UNUSED_CODE_PRIVATE_MEMBERS) && isEnabled(CleanUpConstants.REMOVE_UNUSED_CODE_PRIVATE_METHODS)) {
161 } else {
162 buf.append(" private void foo() {}\n"); }
164 buf.append(" public void bar() {\n"); if (isEnabled(CleanUpConstants.REMOVE_UNUSED_CODE_LOCAL_VARIABLES)) {
166 } else {
167 buf.append(" int i= 10;\n"); }
169 buf.append(" }\n"); buf.append("}\n");
172 return buf.toString();
173 }
174
175
178 public boolean canFix(CompilationUnit compilationUnit, IProblemLocation problem) throws CoreException {
179 if (isEnabled(CleanUpConstants.REMOVE_UNUSED_CODE_IMPORTS)) {
180 UnusedCodeFix fix= UnusedCodeFix.createRemoveUnusedImportFix(compilationUnit, problem);
181 if (fix != null)
182 return true;
183 }
184 if (isEnabled(CleanUpConstants.REMOVE_UNUSED_CODE_PRIVATE_MEMBERS) && isEnabled(CleanUpConstants.REMOVE_UNUSED_CODE_PRIVATE_METHODS) ||
185 isEnabled(CleanUpConstants.REMOVE_UNUSED_CODE_PRIVATE_MEMBERS) && isEnabled(CleanUpConstants.REMOVE_UNUSED_CODE_PRIVATE_CONSTRUCTORS) ||
186 isEnabled(CleanUpConstants.REMOVE_UNUSED_CODE_PRIVATE_MEMBERS) && isEnabled(CleanUpConstants.REMOVE_UNUSED_CODE_PRIVATE_TYPES) ||
187 isEnabled(CleanUpConstants.REMOVE_UNUSED_CODE_PRIVATE_MEMBERS) && isEnabled(CleanUpConstants.REMOVE_UNUSED_CODE_PRIVATE_FELDS) ||
188 isEnabled(CleanUpConstants.REMOVE_UNUSED_CODE_LOCAL_VARIABLES))
189 {
190 UnusedCodeFix fix= UnusedCodeFix.createUnusedMemberFix(compilationUnit, problem, false);
191 if (fix != null)
192 return true;
193 }
194 return false;
195 }
196
197
200 public int maximalNumberOfFixes(CompilationUnit compilationUnit) {
201 int result= 0;
202 IProblem[] problems= compilationUnit.getProblems();
203 if (isEnabled(CleanUpConstants.REMOVE_UNUSED_CODE_IMPORTS) && !isEnabled(CleanUpConstants.ORGANIZE_IMPORTS)) {
204 for (int i=0;i<problems.length;i++) {
205 int id= problems[i].getID();
206 if (id == IProblem.UnusedImport || id == IProblem.DuplicateImport || id == IProblem.ConflictingImport ||
207 id == IProblem.CannotImportPackage || id == IProblem.ImportNotFound)
208 result++;
209 }
210 }
211 if (isEnabled(CleanUpConstants.REMOVE_UNUSED_CODE_PRIVATE_MEMBERS) && isEnabled(CleanUpConstants.REMOVE_UNUSED_CODE_PRIVATE_METHODS))
212 result+= getNumberOfProblems(problems, IProblem.UnusedPrivateMethod);
213 if (isEnabled(CleanUpConstants.REMOVE_UNUSED_CODE_PRIVATE_MEMBERS) && isEnabled(CleanUpConstants.REMOVE_UNUSED_CODE_PRIVATE_CONSTRUCTORS))
214 result+= getNumberOfProblems(problems, IProblem.UnusedPrivateConstructor);
215 if (isEnabled(CleanUpConstants.REMOVE_UNUSED_CODE_PRIVATE_MEMBERS) && isEnabled(CleanUpConstants.REMOVE_UNUSED_CODE_PRIVATE_TYPES))
216 result+= getNumberOfProblems(problems, IProblem.UnusedPrivateType);
217 if (isEnabled(CleanUpConstants.REMOVE_UNUSED_CODE_PRIVATE_MEMBERS) && isEnabled(CleanUpConstants.REMOVE_UNUSED_CODE_PRIVATE_FELDS))
218 result+= getNumberOfProblems(problems, IProblem.UnusedPrivateField);
219 if (isEnabled(CleanUpConstants.REMOVE_UNUSED_CODE_LOCAL_VARIABLES))
220 result+= getNumberOfProblems(problems, IProblem.LocalVariableIsNeverUsed);
221 return result;
222 }
223 }
224 |
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