Mon, 11 Apr 2011 16:31:22 -0700
Merge
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.File;
29 import java.io.InputStream;
30 import java.io.OutputStream;
31 import java.io.PrintWriter;
32 import java.io.Writer;
33 import java.util.ArrayList;
34 import java.util.Collections;
35 import java.util.EnumSet;
36 import java.util.Iterator;
37 import java.util.List;
38 import java.util.Locale;
39 import java.util.Set;
40 import javax.lang.model.SourceVersion;
41 import javax.tools.*;
43 import com.sun.source.util.JavacTask;
44 import com.sun.tools.javac.file.JavacFileManager;
45 import com.sun.tools.javac.main.JavacOption.OptionKind;
46 import com.sun.tools.javac.main.JavacOption;
47 import com.sun.tools.javac.main.Main;
48 import com.sun.tools.javac.main.RecognizedOptions.GrumpyHelper;
49 import com.sun.tools.javac.main.RecognizedOptions;
50 import com.sun.tools.javac.util.Context;
51 import com.sun.tools.javac.util.Log;
52 import com.sun.tools.javac.util.JavacMessages;
53 import com.sun.tools.javac.util.Options;
54 import com.sun.tools.javac.util.Pair;
55 import java.nio.charset.Charset;
57 /**
58 * TODO: describe com.sun.tools.javac.api.Tool
59 *
60 * <p><b>This is NOT part of any supported API.
61 * If you write code that depends on this, you do so at your own
62 * risk. This code and its internal interfaces are subject to change
63 * or deletion without notice.</b></p>
64 *
65 * @author Peter von der Ah\u00e9
66 */
67 public final class JavacTool implements JavaCompiler {
68 private final List<Pair<String,String>> options
69 = new ArrayList<Pair<String,String>>();
70 private final Context dummyContext = new Context();
72 private final PrintWriter silent = new PrintWriter(new OutputStream(){
73 public void write(int b) {}
74 });
76 private final Main sharedCompiler = new Main("javac", silent);
77 {
78 sharedCompiler.setOptions(Options.instance(dummyContext));
79 }
81 /**
82 * Constructor used by service provider mechanism. The correct way to
83 * obtain an instance of this class is using create or the service provider
84 * mechanism.
85 * @see javax.tools.JavaCompilerTool
86 * @see javax.tools.ToolProvider
87 * @see #create
88 */
89 @Deprecated
90 public JavacTool() {}
92 /**
93 * Static factory method for creating new instances of this tool.
94 * @return new instance of this tool
95 */
96 public static JavacTool create() {
97 return new JavacTool();
98 }
100 private String argsToString(Object... args) {
101 String newArgs = null;
102 if (args.length > 0) {
103 StringBuilder sb = new StringBuilder();
104 String separator = "";
105 for (Object arg : args) {
106 sb.append(separator).append(arg.toString());
107 separator = File.pathSeparator;
108 }
109 newArgs = sb.toString();
110 }
111 return newArgs;
112 }
114 private void setOption1(String name, OptionKind kind, Object... args) {
115 String arg = argsToString(args);
116 JavacOption option = sharedCompiler.getOption(name);
117 if (option == null || !match(kind, option.getKind()))
118 throw new IllegalArgumentException(name);
119 if ((args.length != 0) != option.hasArg())
120 throw new IllegalArgumentException(name);
121 if (option.hasArg()) {
122 if (option.process(null, name, arg)) // FIXME
123 throw new IllegalArgumentException(name);
124 } else {
125 if (option.process(null, name)) // FIXME
126 throw new IllegalArgumentException(name);
127 }
128 options.add(new Pair<String,String>(name,arg));
129 }
131 public void setOption(String name, Object... args) {
132 setOption1(name, OptionKind.NORMAL, args);
133 }
135 public void setExtendedOption(String name, Object... args) {
136 setOption1(name, OptionKind.EXTENDED, args);
137 }
139 private static boolean match(OptionKind clientKind, OptionKind optionKind) {
140 return (clientKind == (optionKind == OptionKind.HIDDEN ? OptionKind.EXTENDED : optionKind));
141 }
143 public JavacFileManager getStandardFileManager(
144 DiagnosticListener<? super JavaFileObject> diagnosticListener,
145 Locale locale,
146 Charset charset) {
147 Context context = new Context();
148 JavacMessages.instance(context).setCurrentLocale(locale);
149 if (diagnosticListener != null)
150 context.put(DiagnosticListener.class, diagnosticListener);
151 context.put(Log.outKey, new PrintWriter(System.err, true)); // FIXME
152 return new JavacFileManager(context, true, charset);
153 }
155 public JavacTask getTask(Writer out,
156 JavaFileManager fileManager,
157 DiagnosticListener<? super JavaFileObject> diagnosticListener,
158 Iterable<String> options,
159 Iterable<String> classes,
160 Iterable<? extends JavaFileObject> compilationUnits)
161 {
162 final String kindMsg = "All compilation units must be of SOURCE kind";
163 if (options != null)
164 for (String option : options)
165 option.getClass(); // null check
166 if (classes != null) {
167 for (String cls : classes)
168 if (!SourceVersion.isName(cls)) // implicit null check
169 throw new IllegalArgumentException("Not a valid class name: " + cls);
170 }
171 if (compilationUnits != null) {
172 for (JavaFileObject cu : compilationUnits) {
173 if (cu.getKind() != JavaFileObject.Kind.SOURCE) // implicit null check
174 throw new IllegalArgumentException(kindMsg);
175 }
176 }
178 Context context = new Context();
180 if (diagnosticListener != null)
181 context.put(DiagnosticListener.class, diagnosticListener);
183 if (out == null)
184 context.put(Log.outKey, new PrintWriter(System.err, true));
185 else
186 context.put(Log.outKey, new PrintWriter(out, true));
188 if (fileManager == null)
189 fileManager = getStandardFileManager(diagnosticListener, null, null);
190 context.put(JavaFileManager.class, fileManager);
191 processOptions(context, fileManager, options);
192 Main compiler = new Main("javacTask", context.get(Log.outKey));
193 return new JavacTaskImpl(this, compiler, options, context, classes, compilationUnits);
194 }
196 private static void processOptions(Context context,
197 JavaFileManager fileManager,
198 Iterable<String> options)
199 {
200 if (options == null)
201 return;
203 Options optionTable = Options.instance(context);
205 JavacOption[] recognizedOptions =
206 RecognizedOptions.getJavacToolOptions(new GrumpyHelper());
207 Iterator<String> flags = options.iterator();
208 while (flags.hasNext()) {
209 String flag = flags.next();
210 int j;
211 for (j=0; j<recognizedOptions.length; j++)
212 if (recognizedOptions[j].matches(flag))
213 break;
215 if (j == recognizedOptions.length) {
216 if (fileManager.handleOption(flag, flags)) {
217 continue;
218 } else {
219 String msg = Main.getLocalizedString("err.invalid.flag", flag);
220 throw new IllegalArgumentException(msg);
221 }
222 }
224 JavacOption option = recognizedOptions[j];
225 if (option.hasArg()) {
226 if (!flags.hasNext()) {
227 String msg = Main.getLocalizedString("err.req.arg", flag);
228 throw new IllegalArgumentException(msg);
229 }
230 String operand = flags.next();
231 if (option.process(optionTable, flag, operand))
232 // should not happen as the GrumpyHelper will throw exceptions
233 // in case of errors
234 throw new IllegalArgumentException(flag + " " + operand);
235 } else {
236 if (option.process(optionTable, flag))
237 // should not happen as the GrumpyHelper will throw exceptions
238 // in case of errors
239 throw new IllegalArgumentException(flag);
240 }
241 }
242 }
244 public int run(InputStream in, OutputStream out, OutputStream err, String... arguments) {
245 if (err == null)
246 err = System.err;
247 for (String argument : arguments)
248 argument.getClass(); // null check
249 return com.sun.tools.javac.Main.compile(arguments, new PrintWriter(err, true));
250 }
252 public Set<SourceVersion> getSourceVersions() {
253 return Collections.unmodifiableSet(EnumSet.range(SourceVersion.RELEASE_3,
254 SourceVersion.latest()));
255 }
257 public int isSupportedOption(String option) {
258 JavacOption[] recognizedOptions =
259 RecognizedOptions.getJavacToolOptions(new GrumpyHelper());
260 for (JavacOption o : recognizedOptions) {
261 if (o.matches(option))
262 return o.hasArg() ? 1 : 0;
263 }
264 return -1;
265 }
267 }