Mon, 26 Mar 2012 15:27:51 +0100
7151580: Separate DA/DU logic from exception checking logic in Flow.java
Summary: DA/DU analysis and exception checking analysis should live in two separate tree visitors
Reviewed-by: gafter, dlsmith, jjg
1 /*
2 * Copyright (c) 2005, 2006, 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.javah; //javax.tools;
28 import java.io.Writer;
29 import java.nio.charset.Charset;
30 import java.util.Locale;
31 import java.util.concurrent.Callable;
32 import javax.tools.DiagnosticListener;
33 import javax.tools.JavaFileManager;
34 import javax.tools.JavaFileObject;
35 import javax.tools.OptionChecker;
36 import javax.tools.StandardJavaFileManager;
37 import javax.tools.Tool;
39 /**
40 * This class is intended to be put in javax.tools.
41 *
42 * @see DiagnosticListener
43 * @see Diagnostic
44 * @see JavaFileManager
45 * @since 1.7
46 *
47 * <p><b>This is NOT part of any supported API.
48 * If you write code that depends on this, you do so at your own risk.
49 * This code and its internal interfaces are subject to change or
50 * deletion without notice.</b>
51 */
52 public interface NativeHeaderTool extends Tool, OptionChecker {
54 /**
55 * Creates a future for a native header task with the given
56 * components and arguments. The task might not have
57 * completed as described in the NativeHeaderTask interface.
58 *
59 * <p>If a file manager is provided, it must be able to handle all
60 * locations defined in {@link StandardLocation}.
61 *
62 * @param out a Writer for additional output from the task;
63 * use {@code System.err} if {@code null}
64 * @param fileManager a file manager; if {@code null} use the
65 * task's standard filemanager
66 * @param diagnosticListener a diagnostic listener; if {@code
67 * null} use the compiler's default method for reporting
68 * diagnostics
69 * @param options task options, {@code null} means no options
70 * @param classes class names for which native headers should be generated
71 * @return an object representing the task to be done
72 * @throws RuntimeException if an unrecoverable error
73 * occurred in a user supplied component. The
74 * {@linkplain Throwable#getCause() cause} will be the error in
75 * user code.
76 * @throws IllegalArgumentException if any of the given
77 * compilation units are of other kind than
78 * {@linkplain JavaFileObject.Kind#SOURCE source}
79 */
80 NativeHeaderTask getTask(Writer out,
81 JavaFileManager fileManager,
82 DiagnosticListener<? super JavaFileObject> diagnosticListener,
83 Iterable<String> options,
84 Iterable<String> classes);
86 /**
87 * Gets a new instance of the standard file manager implementation
88 * for this tool. The file manager will use the given diagnostic
89 * listener for producing any non-fatal diagnostics. Fatal errors
90 * will be signalled with the appropriate exceptions.
91 *
92 * <p>The standard file manager will be automatically reopened if
93 * it is accessed after calls to {@code flush} or {@code close}.
94 * The standard file manager must be usable with other tools.
95 *
96 * @param diagnosticListener a diagnostic listener for non-fatal
97 * diagnostics; if {@code null} use the tool's default method
98 * for reporting diagnostics
99 * @param locale the locale to apply when formatting diagnostics;
100 * {@code null} means the {@linkplain Locale#getDefault() default locale}.
101 * @param charset the character set used for decoding bytes; if
102 * {@code null} use the platform default
103 * @return the standard file manager
104 */
105 StandardJavaFileManager getStandardFileManager(
106 DiagnosticListener<? super JavaFileObject> diagnosticListener,
107 Locale locale,
108 Charset charset);
110 /**
111 * Interface representing a future for a native header task. The
112 * task has not yet started. To start the task, call
113 * the {@linkplain #call call} method.
114 *
115 * <p>Before calling the call method, additional aspects of the
116 * task can be configured, for example, by calling the
117 * {@linkplain #setLocale setLocale} method.
118 */
119 interface NativeHeaderTask extends Callable<Boolean> {
121 /**
122 * Set the locale to be applied when formatting diagnostics and
123 * other localized data.
124 *
125 * @param locale the locale to apply; {@code null} means apply no
126 * locale
127 * @throws IllegalStateException if the task has started
128 */
129 void setLocale(Locale locale);
131 /**
132 * Performs this native header task. The task may only
133 * be performed once. Subsequent calls to this method throw
134 * IllegalStateException.
135 *
136 * @return true if and only all the files were processed without errors;
137 * false otherwise
138 *
139 * @throws RuntimeException if an unrecoverable error occurred
140 * in a user-supplied component. The
141 * {@linkplain Throwable#getCause() cause} will be the error
142 * in user code.
143 * @throws IllegalStateException if called more than once
144 */
145 Boolean call();
146 }
147 }