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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
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*
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* 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
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*
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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 6988836
* @summary A new JavacElements is created for each round of annotation processing
* @library ../../../lib
* @build JavacTestingAbstractProcessor TestContext
* @compile/process -processor TestContext -XprintRounds TestContext
*/
import java.io.*;
import java.util.*;
import javax.annotation.processing.*;
import javax.lang.model.element.*;
import static javax.tools.Diagnostic.Kind.*;
import com.sun.source.util.Trees;
import com.sun.tools.javac.api.JavacTrees;
import com.sun.tools.javac.model.JavacElements;
import com.sun.tools.javac.model.JavacTypes;
import com.sun.tools.javac.processing.JavacProcessingEnvironment;
import com.sun.tools.javac.util.Context;
public class TestContext extends JavacTestingAbstractProcessor {
Trees treeUtils;
int round = 0;
@Override
public void init(ProcessingEnvironment pEnv) {
super.init(pEnv);
treeUtils = Trees.instance(processingEnv);
}
@Override
public boolean process(Set<? extends TypeElement> annotations, RoundEnvironment roundEnv) {
round++;
JavacProcessingEnvironment jpe = (JavacProcessingEnvironment) processingEnv;
Context c = jpe.getContext();
check(c.get(JavacElements.class), eltUtils);
check(c.get(JavacTypes.class), typeUtils);
check(c.get(JavacTrees.class), treeUtils);
final int MAXROUNDS = 3;
if (round < MAXROUNDS)
generateSource("Gen" + round);
return true;
}
<T> void check(T actual, T expected) {
// messager.printMessage(NOTE, "expect: " + expected);
// messager.printMessage(NOTE, "actual: " + actual);
if (actual != expected) {
messager.printMessage(ERROR,
"round " + round + " unexpected value for " + expected.getClass().getName() + ": " + actual);
}
}
void generateSource(String name) {
String text = "class " + name + " { }\n";
try (Writer out = filer.createSourceFile(name).openWriter()) {
out.write(text);
} catch (IOException e) {
throw new Error(e);
}
}
}