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comparison truffle/com.oracle.truffle.dsl.processor/src/com/oracle/truffle/dsl/processor/java/model/CodeElement.java @ 21951:9c8c0937da41

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Moving all sources into truffle subdirectory
author Jaroslav Tulach <jaroslav.tulach@oracle.com>
date Wed, 17 Jun 2015 10:58:08 +0200
parents graal/com.oracle.truffle.dsl.processor/src/com/oracle/truffle/dsl/processor/java/model/CodeElement.java@a665483c3881
children dc83cc1f94f2
comparison
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21950:2a5011c7e641 21951:9c8c0937da41
1 /*
2 * Copyright (c) 2012, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 */
23 package com.oracle.truffle.dsl.processor.java.model;
24
25 import java.io.*;
26 import java.lang.annotation.*;
27 import java.util.*;
28
29 import javax.lang.model.element.*;
30
31 import com.oracle.truffle.dsl.processor.java.transform.*;
32
33 public abstract class CodeElement<E extends Element> implements Element, GeneratedElement {
34
35 private final Set<Modifier> modifiers;
36 private List<AnnotationMirror> annotations;
37 private List<E> enclosedElements;
38
39 private Element enclosingElement;
40
41 private Element generatorElement;
42 private AnnotationMirror generatorAnnotationMirror;
43
44 public CodeElement(Set<Modifier> modifiers) {
45 this.modifiers = new LinkedHashSet<>(modifiers);
46 }
47
48 @Override
49 public void setGeneratorAnnotationMirror(AnnotationMirror mirror) {
50 this.generatorAnnotationMirror = mirror;
51 }
52
53 @Override
54 public void setGeneratorElement(Element element) {
55 this.generatorElement = element;
56 }
57
58 @Override
59 public AnnotationMirror getGeneratorAnnotationMirror() {
60 return generatorAnnotationMirror;
61 }
62
63 @Override
64 public Element getGeneratorElement() {
65 return generatorElement;
66 }
67
68 public <T extends E> T add(T element) {
69 if (element == null) {
70 throw new NullPointerException();
71 }
72 getEnclosedElements().add(element);
73 return element;
74 }
75
76 public <T extends E> T addOptional(T element) {
77 if (element != null) {
78 add(element);
79 }
80 return element;
81 }
82
83 public void remove(E element) {
84 getEnclosedElements().remove(element);
85 }
86
87 @Override
88 public Set<Modifier> getModifiers() {
89 return modifiers;
90 }
91
92 @Override
93 public List<E> getEnclosedElements() {
94 if (enclosedElements == null) {
95 enclosedElements = parentableList(this, new ArrayList<E>());
96 }
97 return enclosedElements;
98 }
99
100 @Override
101 public List<AnnotationMirror> getAnnotationMirrors() {
102 if (annotations == null) {
103 annotations = parentableList(this, new ArrayList<AnnotationMirror>());
104 }
105 return annotations;
106 }
107
108 /**
109 * Support JDK8 langtools.
110 *
111 * @param annotationType
112 */
113 public <A extends Annotation> A[] getAnnotationsByType(Class<A> annotationType) {
114 throw new UnsupportedOperationException();
115 }
116
117 /**
118 * Support for some JDK8 builds. (remove after jdk8 is released)
119 *
120 * @param annotationType
121 */
122 public <A extends Annotation> A[] getAnnotations(Class<A> annotationType) {
123 throw new UnsupportedOperationException();
124 }
125
126 /**
127 * Support for some JDK8 builds. (remove after jdk8 is released)
128 *
129 * @param annotationType
130 */
131 public <A extends Annotation> A getAnnotation(Class<A> annotationType) {
132 throw new UnsupportedOperationException();
133 }
134
135 public void addAnnotationMirror(AnnotationMirror annotationMirror) {
136 getAnnotationMirrors().add(annotationMirror);
137 }
138
139 public void setEnclosingElement(Element parent) {
140 this.enclosingElement = parent;
141 }
142
143 public Element getEnclosingElement() {
144 return enclosingElement;
145 }
146
147 public CodeTypeElement getEnclosingClass() {
148 Element p = enclosingElement;
149 while (p != null && p.getKind() != ElementKind.CLASS && p.getKind() != ElementKind.ENUM) {
150 p = p.getEnclosingElement();
151 }
152 return (CodeTypeElement) p;
153 }
154
155 <T> List<T> parentableList(Element parent, List<T> list) {
156 return new ParentableList<>(parent, list);
157 }
158
159 @Override
160 public String toString() {
161 StringBuilderCodeWriter codeWriter = new StringBuilderCodeWriter();
162 accept(codeWriter, null);
163 return codeWriter.getString();
164 }
165
166 private static class StringBuilderCodeWriter extends AbstractCodeWriter {
167
168 public StringBuilderCodeWriter() {
169 this.writer = new CharArrayWriter();
170 }
171
172 @Override
173 protected Writer createWriter(CodeTypeElement clazz) throws IOException {
174 return writer;
175 }
176
177 public String getString() {
178 return new String(((CharArrayWriter) writer).toCharArray()).trim();
179 }
180
181 }
182
183 private static class ParentableList<T> implements List<T> {
184
185 private final Element parent;
186 private final List<T> delegate;
187
188 public ParentableList(Element parent, List<T> delegate) {
189 this.parent = parent;
190 this.delegate = delegate;
191 }
192
193 private void addImpl(T element) {
194 if (element != null) {
195 if (element instanceof CodeElement<?>) {
196 ((CodeElement<?>) element).setEnclosingElement(parent);
197 }
198 }
199 }
200
201 private static void removeImpl(Object element) {
202 if (element instanceof CodeElement<?>) {
203 ((CodeElement<?>) element).setEnclosingElement(null);
204 }
205 }
206
207 @Override
208 public int size() {
209 return delegate.size();
210 }
211
212 @Override
213 public boolean isEmpty() {
214 return delegate.isEmpty();
215 }
216
217 @Override
218 public boolean contains(Object o) {
219 return delegate.contains(o);
220 }
221
222 @Override
223 public Iterator<T> iterator() {
224 return delegate.iterator();
225 }
226
227 @Override
228 public Object[] toArray() {
229 return delegate.toArray();
230 }
231
232 @Override
233 public <E> E[] toArray(E[] a) {
234 return delegate.toArray(a);
235 }
236
237 @Override
238 public boolean add(T e) {
239 addImpl(e);
240 return delegate.add(e);
241 }
242
243 @Override
244 public boolean remove(Object o) {
245 boolean removed = delegate.remove(o);
246 if (removed) {
247 removeImpl(o);
248 }
249 return removed;
250 }
251
252 @Override
253 public boolean containsAll(Collection<?> c) {
254 return delegate.containsAll(c);
255 }
256
257 @Override
258 public boolean addAll(Collection<? extends T> c) {
259 if (c != null) {
260 for (T t : c) {
261 addImpl(t);
262 }
263 }
264 return delegate.addAll(c);
265 }
266
267 @Override
268 public boolean addAll(int index, Collection<? extends T> c) {
269 if (c != null) {
270 for (T t : c) {
271 addImpl(t);
272 }
273 }
274 return delegate.addAll(index, c);
275 }
276
277 @Override
278 public boolean removeAll(Collection<?> c) {
279 if (c != null) {
280 for (Object t : c) {
281 removeImpl(t);
282 }
283 }
284 return delegate.removeAll(c);
285 }
286
287 @Override
288 public String toString() {
289 return delegate.toString();
290 }
291
292 @Override
293 public boolean retainAll(Collection<?> c) {
294 throw new UnsupportedOperationException("Not supported by parentable list");
295 }
296
297 @Override
298 public void clear() {
299 for (Object e : this) {
300 removeImpl(e);
301 }
302 delegate.clear();
303 }
304
305 @Override
306 public T get(int index) {
307 return delegate.get(index);
308 }
309
310 @Override
311 public T set(int index, T element) {
312 removeImpl(delegate.get(index));
313 addImpl(element);
314 return delegate.set(index, element);
315 }
316
317 @Override
318 public void add(int index, T element) {
319 addImpl(element);
320 delegate.add(index, element);
321 }
322
323 @Override
324 public T remove(int index) {
325 T element = delegate.remove(index);
326 removeImpl(element);
327 return element;
328 }
329
330 @Override
331 public int indexOf(Object o) {
332 return delegate.indexOf(o);
333 }
334
335 @Override
336 public int lastIndexOf(Object o) {
337 return delegate.lastIndexOf(o);
338 }
339
340 @Override
341 public ListIterator<T> listIterator() {
342 return delegate.listIterator();
343 }
344
345 @Override
346 public ListIterator<T> listIterator(int index) {
347 return delegate.listIterator(index);
348 }
349
350 @Override
351 public List<T> subList(int fromIndex, int toIndex) {
352 return new ParentableList<>(parent, delegate.subList(fromIndex, toIndex));
353 }
354
355 }
356
357 }