com.sun.tools.doclint.DocLint Maven / Gradle / Ivy
Go to download
Show more of this group Show more artifacts with this name
Show all versions of jdk.compiler Show documentation
Show all versions of jdk.compiler Show documentation
Maven repackaging of OpenJDK's jdk.compiler module
The newest version!
/*
* Copyright (c) 2012, 2013, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
package com.sun.tools.doclint;
import java.io.File;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.ArrayList;
import java.util.HashSet;
import java.util.LinkedList;
import java.util.List;
import java.util.Queue;
import java.util.Set;
import javax.lang.model.element.Name;
import javax.tools.JavaFileObject;
import javax.tools.StandardLocation;
import com.sun.source.doctree.DocCommentTree;
import com.sun.source.tree.ClassTree;
import com.sun.source.tree.CompilationUnitTree;
import com.sun.source.tree.MethodTree;
import com.sun.source.tree.Tree;
import com.sun.source.tree.VariableTree;
import com.sun.source.util.JavacTask;
import com.sun.source.util.Plugin;
import com.sun.source.util.TaskEvent;
import com.sun.source.util.TaskListener;
import com.sun.source.util.TreePath;
import com.sun.source.util.TreePathScanner;
import com.sun.tools.javac.api.JavacTaskImpl;
import com.sun.tools.javac.api.JavacTool;
import com.sun.tools.javac.file.JavacFileManager;
import com.sun.tools.javac.main.JavaCompiler;
import com.sun.tools.javac.util.Context;
/**
* Multi-function entry point for the doc check utility.
*
* This class can be invoked in the following ways:
*
* - From the command line
*
- From javac, as a plugin
*
- Directly, via a simple API
*
*
* This is NOT part of any supported API.
* If you write code that depends on this, you do so at your own
* risk. This code and its internal interfaces are subject to change
* or deletion without notice.
*/
public class DocLint implements Plugin {
public static final String XMSGS_OPTION = "-Xmsgs";
public static final String XMSGS_CUSTOM_PREFIX = "-Xmsgs:";
private static final String STATS = "-stats";
public static final String XIMPLICIT_HEADERS = "-XimplicitHeaders:";
public static final String XCUSTOM_TAGS_PREFIX = "-XcustomTags:";
public static final String TAGS_SEPARATOR = ",";
//
public static void main(String... args) {
DocLint dl = new DocLint();
try {
dl.run(args);
} catch (BadArgs e) {
System.err.println(e.getMessage());
System.exit(1);
} catch (IOException e) {
System.err.println(dl.localize("dc.main.ioerror", e.getLocalizedMessage()));
System.exit(2);
}
}
//
//
public class BadArgs extends Exception {
private static final long serialVersionUID = 0;
BadArgs(String code, Object... args) {
super(localize(code, args));
this.code = code;
this.args = args;
}
final String code;
final Object[] args;
}
/**
* Simple API entry point.
*/
public void run(String... args) throws BadArgs, IOException {
PrintWriter out = new PrintWriter(System.out);
try {
run(out, args);
} finally {
out.flush();
}
}
public void run(PrintWriter out, String... args) throws BadArgs, IOException {
env = new Env();
processArgs(args);
if (needHelp)
showHelp(out);
if (javacFiles.isEmpty()) {
if (!needHelp)
out.println(localize("dc.main.no.files.given"));
}
JavacTool tool = JavacTool.create();
JavacFileManager fm = new JavacFileManager(new Context(), false, null);
fm.setSymbolFileEnabled(false);
fm.setLocation(StandardLocation.PLATFORM_CLASS_PATH, javacBootClassPath);
fm.setLocation(StandardLocation.CLASS_PATH, javacClassPath);
fm.setLocation(StandardLocation.SOURCE_PATH, javacSourcePath);
JavacTask task = tool.getTask(out, fm, null, javacOpts, null,
fm.getJavaFileObjectsFromFiles(javacFiles));
Iterable units = task.parse();
((JavacTaskImpl) task).enter();
env.init(task);
checker = new Checker(env);
DeclScanner ds = new DeclScanner() {
@Override
void visitDecl(Tree tree, Name name) {
TreePath p = getCurrentPath();
DocCommentTree dc = env.trees.getDocCommentTree(p);
checker.scan(dc, p);
}
};
ds.scan(units, null);
reportStats(out);
Context ctx = ((JavacTaskImpl) task).getContext();
JavaCompiler c = JavaCompiler.instance(ctx);
c.printCount("error", c.errorCount());
c.printCount("warn", c.warningCount());
}
void processArgs(String... args) throws BadArgs {
javacOpts = new ArrayList<>();
javacFiles = new ArrayList<>();
if (args.length == 0)
needHelp = true;
for (int i = 0; i < args.length; i++) {
String arg = args[i];
if (arg.matches("-Xmax(errs|warns)") && i + 1 < args.length) {
if (args[++i].matches("[0-9]+")) {
javacOpts.add(arg);
javacOpts.add(args[i]);
} else {
throw new BadArgs("dc.bad.value.for.option", arg, args[i]);
}
} else if (arg.equals(STATS)) {
env.messages.setStatsEnabled(true);
} else if (arg.equals("-bootclasspath") && i + 1 < args.length) {
javacBootClassPath = splitPath(args[++i]);
} else if (arg.equals("-classpath") && i + 1 < args.length) {
javacClassPath = splitPath(args[++i]);
} else if (arg.equals("-cp") && i + 1 < args.length) {
javacClassPath = splitPath(args[++i]);
} else if (arg.equals("-sourcepath") && i + 1 < args.length) {
javacSourcePath = splitPath(args[++i]);
} else if (arg.equals(XMSGS_OPTION)) {
env.messages.setOptions(null);
} else if (arg.startsWith(XMSGS_CUSTOM_PREFIX)) {
env.messages.setOptions(arg.substring(arg.indexOf(":") + 1));
} else if (arg.startsWith(XCUSTOM_TAGS_PREFIX)) {
env.setCustomTags(arg.substring(arg.indexOf(":") + 1));
} else if (arg.equals("-h") || arg.equals("-help") || arg.equals("--help")
|| arg.equals("-?") || arg.equals("-usage")) {
needHelp = true;
} else if (arg.startsWith("-")) {
throw new BadArgs("dc.bad.option", arg);
} else {
while (i < args.length)
javacFiles.add(new File(args[i++]));
}
}
}
void showHelp(PrintWriter out) {
String msg = localize("dc.main.usage");
for (String line: msg.split("\n"))
out.println(line);
}
List splitPath(String path) {
List files = new ArrayList<>();
for (String f: path.split(File.pathSeparator)) {
if (f.length() > 0)
files.add(new File(f));
}
return files;
}
List javacBootClassPath;
List javacClassPath;
List javacSourcePath;
List javacOpts;
List javacFiles;
boolean needHelp = false;
//
//
@Override
public String getName() {
return "doclint";
}
@Override
public void init(JavacTask task, String... args) {
init(task, args, true);
}
//
//
public void init(JavacTask task, String[] args, boolean addTaskListener) {
env = new Env();
for (int i = 0; i < args.length; i++) {
String arg = args[i];
if (arg.equals(XMSGS_OPTION)) {
env.messages.setOptions(null);
} else if (arg.startsWith(XMSGS_CUSTOM_PREFIX)) {
env.messages.setOptions(arg.substring(arg.indexOf(":") + 1));
} else if (arg.matches(XIMPLICIT_HEADERS + "[1-6]")) {
char ch = arg.charAt(arg.length() - 1);
env.setImplicitHeaders(Character.digit(ch, 10));
} else if (arg.startsWith(XCUSTOM_TAGS_PREFIX)) {
env.setCustomTags(arg.substring(arg.indexOf(":") + 1));
} else
throw new IllegalArgumentException(arg);
}
env.init(task);
checker = new Checker(env);
if (addTaskListener) {
final DeclScanner ds = new DeclScanner() {
@Override
void visitDecl(Tree tree, Name name) {
TreePath p = getCurrentPath();
DocCommentTree dc = env.trees.getDocCommentTree(p);
checker.scan(dc, p);
}
};
TaskListener tl = new TaskListener() {
@Override
public void started(TaskEvent e) {
switch (e.getKind()) {
case ANALYZE:
CompilationUnitTree tree;
while ((tree = todo.poll()) != null)
ds.scan(tree, null);
break;
}
}
@Override
public void finished(TaskEvent e) {
switch (e.getKind()) {
case PARSE:
todo.add(e.getCompilationUnit());
break;
}
}
Queue todo = new LinkedList();
};
task.addTaskListener(tl);
}
}
public void scan(TreePath p) {
DocCommentTree dc = env.trees.getDocCommentTree(p);
checker.scan(dc, p);
}
public void reportStats(PrintWriter out) {
env.messages.reportStats(out);
}
//
Env env;
Checker checker;
public static boolean isValidOption(String opt) {
if (opt.equals(XMSGS_OPTION))
return true;
if (opt.startsWith(XMSGS_CUSTOM_PREFIX))
return Messages.Options.isValidOptions(opt.substring(XMSGS_CUSTOM_PREFIX.length()));
return false;
}
private String localize(String code, Object... args) {
Messages m = (env != null) ? env.messages : new Messages(null);
return m.localize(code, args);
}
//
static abstract class DeclScanner extends TreePathScanner {
abstract void visitDecl(Tree tree, Name name);
@Override
public Void visitCompilationUnit(CompilationUnitTree tree, Void ignore) {
if (tree.getPackageName() != null) {
visitDecl(tree, null);
}
return super.visitCompilationUnit(tree, ignore);
}
@Override
public Void visitClass(ClassTree tree, Void ignore) {
visitDecl(tree, tree.getSimpleName());
return super.visitClass(tree, ignore);
}
@Override
public Void visitMethod(MethodTree tree, Void ignore) {
visitDecl(tree, tree.getName());
//return super.visitMethod(tree, ignore);
return null;
}
@Override
public Void visitVariable(VariableTree tree, Void ignore) {
visitDecl(tree, tree.getName());
return super.visitVariable(tree, ignore);
}
}
//
}