Tue, 25 Sep 2012 13:11:05 -0700
7196464: upgrade JavaCompiler.shouldStopPolicy to accomodate policies in face of error and no error
Reviewed-by: mcimadamore
1 /*
2 * Copyright (c) 2005, 2011, 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. Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
26 package com.sun.tools.javac.api;
28 import java.io.InputStream;
29 import java.io.OutputStream;
30 import java.io.OutputStreamWriter;
31 import java.io.PrintWriter;
32 import java.io.Writer;
33 import java.nio.charset.Charset;
34 import java.util.Collections;
35 import java.util.EnumSet;
36 import java.util.Iterator;
37 import java.util.Locale;
38 import java.util.Set;
39 import javax.lang.model.SourceVersion;
40 import javax.tools.*;
42 import com.sun.source.util.JavacTask;
43 import com.sun.tools.javac.file.JavacFileManager;
44 import com.sun.tools.javac.main.Main;
45 import com.sun.tools.javac.main.Option;
46 import com.sun.tools.javac.main.OptionHelper;
47 import com.sun.tools.javac.main.OptionHelper.GrumpyHelper;
48 import com.sun.tools.javac.util.ClientCodeException;
49 import com.sun.tools.javac.util.Context;
50 import com.sun.tools.javac.util.Log;
51 import com.sun.tools.javac.util.Log.PrefixKind;
52 import com.sun.tools.javac.util.Options;
54 /**
55 * TODO: describe com.sun.tools.javac.api.Tool
56 *
57 * <p><b>This is NOT part of any supported API.
58 * If you write code that depends on this, you do so at your own
59 * risk. This code and its internal interfaces are subject to change
60 * or deletion without notice.</b></p>
61 *
62 * @author Peter von der Ah\u00e9
63 */
64 public final class JavacTool implements JavaCompiler {
65 /**
66 * Constructor used by service provider mechanism. The recommended way to
67 * obtain an instance of this class is by using {@link #create} or the
68 * service provider mechanism.
69 * @see javax.tools.JavaCompilerTool
70 * @see javax.tools.ToolProvider
71 * @see #create
72 */
73 @Deprecated
74 public JavacTool() {}
76 /**
77 * Static factory method for creating new instances of this tool.
78 * @return new instance of this tool
79 */
80 public static JavacTool create() {
81 return new JavacTool();
82 }
84 public JavacFileManager getStandardFileManager(
85 DiagnosticListener<? super JavaFileObject> diagnosticListener,
86 Locale locale,
87 Charset charset) {
88 Context context = new Context();
89 context.put(Locale.class, locale);
90 if (diagnosticListener != null)
91 context.put(DiagnosticListener.class, diagnosticListener);
92 PrintWriter pw = (charset == null)
93 ? new PrintWriter(System.err, true)
94 : new PrintWriter(new OutputStreamWriter(System.err, charset), true);
95 context.put(Log.outKey, pw);
96 return new JavacFileManager(context, true, charset);
97 }
99 @Override
100 public JavacTask getTask(Writer out,
101 JavaFileManager fileManager,
102 DiagnosticListener<? super JavaFileObject> diagnosticListener,
103 Iterable<String> options,
104 Iterable<String> classes,
105 Iterable<? extends JavaFileObject> compilationUnits) {
106 Context context = new Context();
107 return getTask(out, fileManager, diagnosticListener,
108 options, classes, compilationUnits,
109 context);
110 }
112 public JavacTask getTask(Writer out,
113 JavaFileManager fileManager,
114 DiagnosticListener<? super JavaFileObject> diagnosticListener,
115 Iterable<String> options,
116 Iterable<String> classes,
117 Iterable<? extends JavaFileObject> compilationUnits,
118 Context context)
119 {
120 try {
121 ClientCodeWrapper ccw = ClientCodeWrapper.instance(context);
123 final String kindMsg = "All compilation units must be of SOURCE kind";
124 if (options != null)
125 for (String option : options)
126 option.getClass(); // null check
127 if (classes != null) {
128 for (String cls : classes)
129 if (!SourceVersion.isName(cls)) // implicit null check
130 throw new IllegalArgumentException("Not a valid class name: " + cls);
131 }
132 if (compilationUnits != null) {
133 compilationUnits = ccw.wrapJavaFileObjects(compilationUnits); // implicit null check
134 for (JavaFileObject cu : compilationUnits) {
135 if (cu.getKind() != JavaFileObject.Kind.SOURCE)
136 throw new IllegalArgumentException(kindMsg);
137 }
138 }
140 if (diagnosticListener != null)
141 context.put(DiagnosticListener.class, ccw.wrap(diagnosticListener));
143 if (out == null)
144 context.put(Log.outKey, new PrintWriter(System.err, true));
145 else
146 context.put(Log.outKey, new PrintWriter(out, true));
148 if (fileManager == null)
149 fileManager = getStandardFileManager(diagnosticListener, null, null);
150 fileManager = ccw.wrap(fileManager);
152 context.put(JavaFileManager.class, fileManager);
154 processOptions(context, fileManager, options);
155 Main compiler = new Main("javacTask", context.get(Log.outKey));
156 return new JavacTaskImpl(compiler, options, context, classes, compilationUnits);
157 } catch (ClientCodeException ex) {
158 throw new RuntimeException(ex.getCause());
159 }
160 }
162 private static void processOptions(Context context,
163 JavaFileManager fileManager,
164 Iterable<String> options)
165 {
166 if (options == null)
167 return;
169 final Options optionTable = Options.instance(context);
170 Log log = Log.instance(context);
172 Option[] recognizedOptions =
173 Option.getJavacToolOptions().toArray(new Option[0]);
174 OptionHelper optionHelper = new GrumpyHelper(log) {
175 @Override
176 public String get(Option option) {
177 return optionTable.get(option.getText());
178 }
180 @Override
181 public void put(String name, String value) {
182 optionTable.put(name, value);
183 }
185 @Override
186 public void remove(String name) {
187 optionTable.remove(name);
188 }
189 };
191 Iterator<String> flags = options.iterator();
192 while (flags.hasNext()) {
193 String flag = flags.next();
194 int j;
195 for (j=0; j<recognizedOptions.length; j++)
196 if (recognizedOptions[j].matches(flag))
197 break;
199 if (j == recognizedOptions.length) {
200 if (fileManager.handleOption(flag, flags)) {
201 continue;
202 } else {
203 String msg = log.localize(PrefixKind.JAVAC, "err.invalid.flag", flag);
204 throw new IllegalArgumentException(msg);
205 }
206 }
208 Option option = recognizedOptions[j];
209 if (option.hasArg()) {
210 if (!flags.hasNext()) {
211 String msg = log.localize(PrefixKind.JAVAC, "err.req.arg", flag);
212 throw new IllegalArgumentException(msg);
213 }
214 String operand = flags.next();
215 if (option.process(optionHelper, flag, operand))
216 // should not happen as the GrumpyHelper will throw exceptions
217 // in case of errors
218 throw new IllegalArgumentException(flag + " " + operand);
219 } else {
220 if (option.process(optionHelper, flag))
221 // should not happen as the GrumpyHelper will throw exceptions
222 // in case of errors
223 throw new IllegalArgumentException(flag);
224 }
225 }
227 optionTable.notifyListeners();
228 }
230 public int run(InputStream in, OutputStream out, OutputStream err, String... arguments) {
231 if (err == null)
232 err = System.err;
233 for (String argument : arguments)
234 argument.getClass(); // null check
235 return com.sun.tools.javac.Main.compile(arguments, new PrintWriter(err, true));
236 }
238 public Set<SourceVersion> getSourceVersions() {
239 return Collections.unmodifiableSet(EnumSet.range(SourceVersion.RELEASE_3,
240 SourceVersion.latest()));
241 }
243 public int isSupportedOption(String option) {
244 Set<Option> recognizedOptions = Option.getJavacToolOptions();
245 for (Option o : recognizedOptions) {
246 if (o.matches(option))
247 return o.hasArg() ? 1 : 0;
248 }
249 return -1;
250 }
252 }