/*
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* 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).
*
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* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
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*/
/*
* @test
* @bug 6472751
* @summary SourcePositions.getStartPos returns incorrect value for enum constants
* @author Peter Ahe
*/
import com.sun.source.tree.CompilationUnitTree;
import com.sun.source.tree.Tree;
import com.sun.source.tree.Tree.Kind;
import com.sun.source.util.JavacTask;
import com.sun.source.util.SourcePositions;
import com.sun.source.util.TreeScanner;
import com.sun.source.util.Trees;
import com.sun.tools.javac.util.List;
import java.io.IOException;
import java.net.URI;
import javax.tools.JavaCompiler;
import javax.tools.JavaFileObject;
import javax.tools.SimpleJavaFileObject;
import javax.tools.ToolProvider;
public class T6472751 {
static class MyFileObject extends SimpleJavaFileObject {
public MyFileObject() {
super(URI.create("myfo:/Test.java"), JavaFileObject.Kind.SOURCE);
}
public CharSequence getCharContent(boolean ignoreEncodingErrors) {
return "public enum Test { ABC, DEF; }";
}
}
static Trees trees;
static SourcePositions positions;
public static void main(String[] args) throws IOException {
JavaCompiler compiler = ToolProvider.getSystemJavaCompiler();
JavacTask task = (JavacTask) compiler.getTask(null, null, null, null, null, List.of(new MyFileObject()));
trees = Trees.instance(task);
positions = trees.getSourcePositions();
Iterable<? extends CompilationUnitTree> asts = task.parse();
for (CompilationUnitTree ast : asts) {
new MyVisitor().scan(ast, null);
}
}
static class MyVisitor extends TreeScanner<Void,Void> {
@Override
public Void scan(Tree node, Void ignored) {
if (node == null)
return null;
Kind k = node.getKind();
long pos = positions.getStartPosition(null,node);
System.out.format("%s: %s%n", k, pos);
if (k != Kind.MODIFIERS && pos < 0)
throw new Error("unexpected position found");
return super.scan(node, ignored);
}
}
}