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* 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 ,
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*/
/*
* @ test
* @ bug 6472751
* @ summary SourcePositions . getStartPos returns incorrect value for enum constants
* @ author Peter Ahe
* @ modules jdk . compiler / com . sun . tools . javac . util
*/
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);
}
}
}
Messung V0.5 in Prozent C=98 H=94 G=95
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