1 | /******************************************************************************* |
2 | * Copyright (c) 2008, 2009 IBM Corporation and others. |
3 | * All rights reserved. This program and the accompanying materials |
4 | * are made available under the terms of the Eclipse Public License v1.0 |
5 | * which accompanies this distribution, and is available at |
6 | * http://www.eclipse.org/legal/epl-v10.html |
7 | * |
8 | * Contributors: |
9 | * IBM Corporation - initial API and implementation |
10 | *******************************************************************************/ |
11 | package org.eclipse.pde.api.tools.internal.builder; |
12 | |
13 | import java.util.Set; |
14 | |
15 | import org.eclipse.core.runtime.CoreException; |
16 | import org.eclipse.jdt.core.Flags; |
17 | import org.eclipse.jdt.core.IField; |
18 | import org.eclipse.jdt.core.ISourceRange; |
19 | import org.eclipse.jdt.core.IType; |
20 | import org.eclipse.jface.text.BadLocationException; |
21 | import org.eclipse.jface.text.IDocument; |
22 | import org.eclipse.jface.text.Position; |
23 | import org.eclipse.pde.api.tools.internal.provisional.ApiPlugin; |
24 | import org.eclipse.pde.api.tools.internal.provisional.IApiAnnotations; |
25 | import org.eclipse.pde.api.tools.internal.provisional.IApiDescription; |
26 | import org.eclipse.pde.api.tools.internal.provisional.RestrictionModifiers; |
27 | import org.eclipse.pde.api.tools.internal.provisional.builder.IReference; |
28 | import org.eclipse.pde.api.tools.internal.provisional.descriptors.IElementDescriptor; |
29 | import org.eclipse.pde.api.tools.internal.provisional.model.IApiField; |
30 | import org.eclipse.pde.api.tools.internal.provisional.model.IApiType; |
31 | import org.eclipse.pde.api.tools.internal.provisional.problems.IApiProblem; |
32 | import org.eclipse.pde.api.tools.internal.provisional.problems.IApiProblemTypes; |
33 | |
34 | /** |
35 | * Detects leaked field declarations (declared type). |
36 | * |
37 | * @since 1.1 |
38 | */ |
39 | public class LeakFieldProblemDetector extends AbstractTypeLeakDetector { |
40 | |
41 | /** |
42 | * @param nonApiPackageNames |
43 | */ |
44 | public LeakFieldProblemDetector(Set nonApiPackageNames) { |
45 | super(nonApiPackageNames); |
46 | } |
47 | |
48 | /* (non-Javadoc) |
49 | * @see org.eclipse.pde.api.tools.internal.search.AbstractTypeLeakDetector#isApplicable(org.eclipse.pde.api.tools.internal.provisional.IApiAnnotations) |
50 | */ |
51 | protected boolean isApplicable(IApiAnnotations annotations) { |
52 | return super.isApplicable(annotations) && |
53 | !RestrictionModifiers.isReferenceRestriction(annotations.getRestrictions()); |
54 | } |
55 | |
56 | /* (non-Javadoc) |
57 | * @see org.eclipse.pde.api.tools.internal.provisional.search.IApiProblemDetector#getReferenceKinds() |
58 | */ |
59 | public int getReferenceKinds() { |
60 | return IReference.REF_FIELDDECL; |
61 | } |
62 | |
63 | /* (non-Javadoc) |
64 | * @see org.eclipse.pde.api.tools.internal.search.AbstractProblemDetector#getElementType(org.eclipse.pde.api.tools.internal.provisional.model.IReference) |
65 | */ |
66 | protected int getElementType(IReference reference) { |
67 | return IElementDescriptor.FIELD; |
68 | } |
69 | |
70 | /* (non-Javadoc) |
71 | * @see org.eclipse.pde.api.tools.internal.search.AbstractProblemDetector#getSeverityKey() |
72 | */ |
73 | protected String getSeverityKey() { |
74 | return IApiProblemTypes.LEAK_FIELD_DECL; |
75 | } |
76 | |
77 | /* (non-Javadoc) |
78 | * @see org.eclipse.pde.api.tools.internal.search.AbstractProblemDetector#getProblemFlags(org.eclipse.pde.api.tools.internal.provisional.model.IReference) |
79 | */ |
80 | protected int getProblemFlags(IReference reference) { |
81 | return IApiProblem.LEAK_FIELD; |
82 | } |
83 | |
84 | /* (non-Javadoc) |
85 | * @see org.eclipse.pde.api.tools.internal.search.AbstractTypeLeakDetector#isProblem(org.eclipse.pde.api.tools.internal.provisional.model.IReference) |
86 | */ |
87 | protected boolean isProblem(IReference reference) { |
88 | if (super.isProblem(reference)) { |
89 | IApiField field = (IApiField) reference.getMember(); |
90 | if ((Flags.AccProtected & field.getModifiers()) > 0) { |
91 | // TODO: could do this check before resolution - it's a check on the source location |
92 | // ignore protected members if contained in a @noextend type |
93 | try { |
94 | IApiDescription description = field.getApiComponent().getApiDescription(); |
95 | IApiAnnotations annotations = description.resolveAnnotations(field.getHandle().getEnclosingType()); |
96 | if (annotations == null || RestrictionModifiers.isExtendRestriction(annotations.getRestrictions())) { |
97 | return false; |
98 | } |
99 | } catch (CoreException e) { |
100 | ApiPlugin.log(e); |
101 | } |
102 | } |
103 | return true; |
104 | } |
105 | return false; |
106 | } |
107 | |
108 | /* (non-Javadoc) |
109 | * @see org.eclipse.pde.api.tools.internal.search.AbstractTypeLeakDetector#getMessageArgs(org.eclipse.pde.api.tools.internal.provisional.model.IReference) |
110 | */ |
111 | protected String[] getMessageArgs(IReference reference) throws CoreException { |
112 | IApiField field = (IApiField) reference.getMember(); |
113 | IApiType type = (IApiType) reference.getResolvedReference(); |
114 | return new String[] { |
115 | getSimpleTypeName(type), |
116 | getSimpleTypeName(field), |
117 | field.getName()}; |
118 | } |
119 | |
120 | /* (non-Javadoc) |
121 | * @see org.eclipse.pde.api.tools.internal.search.AbstractTypeLeakDetector#getQualifiedMessageArgs(org.eclipse.pde.api.tools.internal.provisional.model.IReference) |
122 | */ |
123 | protected String[] getQualifiedMessageArgs(IReference reference) throws CoreException { |
124 | IApiField field = (IApiField) reference.getMember(); |
125 | IApiType type = (IApiType) reference.getResolvedReference(); |
126 | return new String[] { |
127 | getQualifiedTypeName(type), |
128 | getQualifiedTypeName(field), |
129 | field.getName()}; |
130 | } |
131 | |
132 | /* (non-Javadoc) |
133 | * @see org.eclipse.pde.api.tools.internal.search.AbstractTypeLeakDetector#getSourceRange(org.eclipse.jdt.core.IType, org.eclipse.jface.text.IDocument, org.eclipse.pde.api.tools.internal.provisional.model.IReference) |
134 | */ |
135 | protected Position getSourceRange(IType type, IDocument doc, IReference reference) throws CoreException, BadLocationException { |
136 | IApiField field = (IApiField) reference.getMember(); |
137 | IField javaField = type.getField(field.getName()); |
138 | Position pos = null; |
139 | if (javaField.exists()) { |
140 | ISourceRange range = javaField.getNameRange(); |
141 | if(range != null) { |
142 | pos = new Position(range.getOffset(), range.getLength()); |
143 | } |
144 | } |
145 | if(pos == null) { |
146 | return defaultSourcePosition(type, reference); |
147 | } |
148 | return pos; |
149 | } |
150 | } |