src/share/classes/com/sun/tools/javac/api/DiagnosticFormatter.java

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1 /*
2 * Copyright (c) 2008, 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. 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 */
25 package com.sun.tools.javac.api;
26
27 import java.util.Locale;
28 import java.util.Set;
29 import javax.tools.Diagnostic;
30 import com.sun.tools.javac.api.DiagnosticFormatter.*;
31
32 /**
33 * Provides simple functionalities for javac diagnostic formatting.
34 * @param <D> type of diagnostic handled by this formatter
35 *
36 * <p><b>This is NOT part of any supported API.
37 * If you write code that depends on this, you do so at your own risk.
38 * This code and its internal interfaces are subject to change or
39 * deletion without notice.</b>
40 */
41 public interface DiagnosticFormatter<D extends Diagnostic<?>> {
42
43 /**
44 * Whether the source code output for this diagnostic is to be displayed.
45 *
46 * @param diag diagnostic to be formatted
47 * @return true if the source line this diagnostic refers to is to be displayed
48 */
49 boolean displaySource(D diag);
50
51 /**
52 * Format the contents of a diagnostics.
53 *
54 * @param diag the diagnostic to be formatted
55 * @param l locale object to be used for i18n
56 * @return a string representing the diagnostic
57 */
58 public String format(D diag, Locale l);
59
60 /**
61 * Controls the way in which a diagnostic message is displayed.
62 *
63 * @param diag diagnostic to be formatted
64 * @param l locale object to be used for i18n
65 * @return string representation of the diagnostic message
66 */
67 public String formatMessage(D diag,Locale l);
68
69 /**
70 * Controls the way in which a diagnostic kind is displayed.
71 *
72 * @param diag diagnostic to be formatted
73 * @param l locale object to be used for i18n
74 * @return string representation of the diagnostic prefix
75 */
76 public String formatKind(D diag, Locale l);
77
78 /**
79 * Controls the way in which a diagnostic source is displayed.
80 *
81 * @param diag diagnostic to be formatted
82 * @param l locale object to be used for i18n
83 * @param fullname whether the source fullname should be printed
84 * @return string representation of the diagnostic source
85 */
86 public String formatSource(D diag, boolean fullname, Locale l);
87
88 /**
89 * Controls the way in which a diagnostic position is displayed.
90 *
91 * @param diag diagnostic to be formatted
92 * @param pk enum constant representing the position kind
93 * @param l locale object to be used for i18n
94 * @return string representation of the diagnostic position
95 */
96 public String formatPosition(D diag, PositionKind pk, Locale l);
97 //where
98 /**
99 * This enum defines a set of constants for all the kinds of position
100 * that a diagnostic can be asked for. All positions are intended to be
101 * relative to a given diagnostic source.
102 */
103 public enum PositionKind {
104 /**
105 * Start position
106 */
107 START,
108 /**
109 * End position
110 */
111 END,
112 /**
113 * Line number
114 */
115 LINE,
116 /**
117 * Column number
118 */
119 COLUMN,
120 /**
121 * Offset position
122 */
123 OFFSET
124 }
125
126 /**
127 * Get a list of all the enabled verbosity options.
128 * @return verbosity options
129 */
130 public Configuration getConfiguration();
131 //where
132
133 /**
134 * This interface provides functionalities for tuning the output of a
135 * diagnostic formatter in multiple ways.
136 */
137 interface Configuration {
138 /**
139 * Configure the set of diagnostic parts that should be displayed
140 * by the formatter.
141 * @param visibleParts the parts to be set
142 */
143 public void setVisible(Set<DiagnosticPart> visibleParts);
144
145 /**
146 * Retrieve the set of diagnostic parts that should be displayed
147 * by the formatter.
148 * @return verbosity options
149 */
150 public Set<DiagnosticPart> getVisible();
151
152 //where
153 /**
154 * A given diagnostic message can be divided into sub-parts each of which
155 * might/might not be displayed by the formatter, according to the
156 * current configuration settings.
157 */
158 public enum DiagnosticPart {
159 /**
160 * Short description of the diagnostic - usually one line long.
161 */
162 SUMMARY,
163 /**
164 * Longer description that provides additional details w.r.t. the ones
165 * in the diagnostic's description.
166 */
167 DETAILS,
168 /**
169 * Source line the diagnostic refers to (if applicable).
170 */
171 SOURCE,
172 /**
173 * Subdiagnostics attached to a given multiline diagnostic.
174 */
175 SUBDIAGNOSTICS,
176 /**
177 * JLS paragraph this diagnostic might refer to (if applicable).
178 */
179 JLS;
180 }
181
182 /**
183 * Set a limit for multiline diagnostics.
184 * Note: Setting a limit has no effect if multiline diagnostics are either
185 * fully enabled or disabled.
186 *
187 * @param limit the kind of limit to be set
188 * @param value the limit value
189 */
190 public void setMultilineLimit(MultilineLimit limit, int value);
191
192 /**
193 * Get a multiline diagnostic limit.
194 *
195 * @param limit the kind of limit to be retrieved
196 * @return limit value or -1 if no limit is set
197 */
198 public int getMultilineLimit(MultilineLimit limit);
199 //where
200 /**
201 * A multiline limit control the verbosity of multiline diagnostics
202 * either by setting a maximum depth of nested multidiagnostics,
203 * or by limiting the amount of subdiagnostics attached to a given
204 * diagnostic (or both).
205 */
206 public enum MultilineLimit {
207 /**
208 * Controls the maximum depth of nested multiline diagnostics.
209 */
210 DEPTH,
211 /**
212 * Controls the maximum amount of subdiagnostics that are part of a
213 * given multiline diagnostic.
214 */
215 LENGTH;
216 }
217 }
218 }

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