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/*
* Copyright (c) 2005, 2016, 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.
*
* 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.
*/
/**
* @test
* @bug 4994049
* @summary Unit test for SourcePosition.column with respect to tab expansion
* @author Peter von der Ah\u00e9
* @modules jdk.javadoc/jdk.javadoc.internal.tool
* @run main T4994049 FileWithTabs.java
*/
import java.io.*;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import java.util.Locale;
import java.util.Set;
import javax.lang.model.SourceVersion;
import javax.lang.model.element.ElementKind;
import javax.lang.model.element.ExecutableElement;
import javax.lang.model.element.TypeElement;
import javax.lang.model.util.ElementFilter;
import com.sun.source.tree.CompilationUnitTree;
import com.sun.source.tree.LineMap;
import com.sun.source.util.DocTrees;
import com.sun.source.util.SourcePositions;
import com.sun.source.util.TreePath;
import jdk.javadoc.doclet.Doclet;
import jdk.javadoc.doclet.Reporter;
import jdk.javadoc.doclet.DocletEnvironment;
import static jdk.javadoc.internal.tool.Main.execute;
public class T4994049 implements Doclet {
public boolean run(DocletEnvironment root) {
DocTrees trees = root.getDocTrees();
SourcePositions sourcePositions = trees.getSourcePositions();
for (TypeElement klass : ElementFilter.typesIn(root.getIncludedElements())) {
for (ExecutableElement method : getMethods(klass)) {
if (method.getSimpleName().toString().equals("tabbedMethod")) {
TreePath path = trees.getPath(method);
CompilationUnitTree cu = path.getCompilationUnit();
long pos = sourcePositions.getStartPosition(cu, path.getLeaf());
LineMap lineMap = cu.getLineMap();
long columnNumber = lineMap.getColumnNumber(pos);
if (columnNumber == 9) {
System.out.println(columnNumber + ": OK!");
return true;
} else {
System.err.println(columnNumber + ": wrong tab expansion");
return false;
}
}
}
}
return false;
}
public static void main(String... args) throws Exception {
File testSrc = new File(System.getProperty("test.src"));
File tmpSrc = new File("tmpSrc");
initTabs(testSrc, tmpSrc);
for (String file : args) {
File source = new File(tmpSrc, file);
String[] array = {
"-docletpath", System.getProperty("test.classes", "."),
"-doclet", "T4994049",
source.getPath()
};
int rc = execute(array);
if (rc != 0)
throw new Error("Unexpected return code from javadoc: " + rc);
}
}
static void initTabs(File from, File to) throws IOException {
for (File f: from.listFiles()) {
File t = new File(to, f.getName());
if (f.isDirectory()) {
initTabs(f, t);
} else if (f.getName().endsWith(".java")) {
write(t, read(f).replace("\\t", "\t"));
}
}
}
static String read(File f) throws IOException {
StringBuilder sb = new StringBuilder();
try (BufferedReader in = new BufferedReader(new FileReader(f))) {
String line;
while ((line = in.readLine()) != null) {
sb.append(line);
sb.append("\n");
}
}
return sb.toString();
}
static void write(File f, String s) throws IOException {
f.getParentFile().mkdirs();
try (Writer out = new FileWriter(f)) {
out.write(s);
}
}
List<ExecutableElement> getMethods(TypeElement klass) {
List<ExecutableElement> methods = new ArrayList<>();
klass.getEnclosedElements()
.stream()
.filter((e) -> (e.getKind() == ElementKind.METHOD))
.forEach((e) -> {
methods.add((ExecutableElement) e);
});
return methods;
}
@Override
public String getName() {
return "Test";
}
@Override
public Set<Option> getSupportedOptions() {
return Collections.emptySet();
}
@Override
public SourceVersion getSupportedSourceVersion() {
return SourceVersion.latest();
}
@Override
public void init(Locale locale, Reporter reporter) {
return;
}
}
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