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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
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*
* 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.
*
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/*
* @test
* @bug 6911256 6964740 6967842 6961571
* @summary Test that the resource variable kind is appropriately set
* @author Joseph D. Darcy
* @library ../../../lib
* @build JavacTestingAbstractProcessor TestResourceVariable
* @compile -processor TestResourceVariable -proc:only TestResourceVariable.java
*/
import java.io.*;
import javax.annotation.processing.*;
import javax.lang.model.*;
import javax.lang.model.element.*;
import javax.lang.model.type.*;
import javax.lang.model.util.*;
import java.util.*;
import com.sun.source.tree.*;
import com.sun.source.util.*;
import static javax.tools.Diagnostic.Kind.*;
/**
* Using the tree API, retrieve element representations of the
* resource of an ARM block and verify their kind tags are set
* appropriately.
*/
public class TestResourceVariable extends JavacTestingAbstractProcessor implements AutoCloseable {
int resourceVariableCount = 0;
public boolean process(Set<? extends TypeElement> annotations,
RoundEnvironment roundEnv) {
if (!roundEnv.processingOver()) {
Trees trees = Trees.instance(processingEnv);
for(Element rootElement : roundEnv.getRootElements()) {
TreePath treePath = trees.getPath(rootElement);
(new ResourceVariableScanner(trees)).
scan(trees.getTree(rootElement),
treePath.getCompilationUnit());
}
if (resourceVariableCount != 3)
throw new RuntimeException("Bad resource variable count " +
resourceVariableCount);
}
return true;
}
@Override
public void close() {}
private void test1() {
try(TestResourceVariable trv = this) {}
}
private void test2() {
try(TestResourceVariable trv1 = this; TestResourceVariable trv2 = trv1) {}
}
/**
* Verify that a resource variable modeled as an element behaves
* as expected under 6 and 7 specific visitors.
*/
private static void testResourceVariable(Element element) {
ElementVisitor visitor6 = new ElementKindVisitor6<Void, Void>() {};
try {
visitor6.visit(element);
throw new RuntimeException("Expected UnknownElementException not thrown.");
} catch (UnknownElementException uee) {
; // Expected.
}
ElementKindVisitor7 visitor7 = new ElementKindVisitor7<Object, Void>() {
@Override
public Object visitVariableAsResourceVariable(VariableElement e,
Void p) {
return e; // a non-null value
}
};
if (visitor7.visit(element) == null) {
throw new RuntimeException("Null result of resource variable visitation.");
}
}
class ResourceVariableScanner extends TreeScanner<Void, CompilationUnitTree> {
private Trees trees;
public ResourceVariableScanner(Trees trees) {
super();
this.trees = trees;
}
@Override
public Void visitVariable(VariableTree node, CompilationUnitTree cu) {
Element element = trees.getElement(trees.getPath(cu, node));
System.out.println("Name: " + element.getSimpleName() +
"\tKind: " + element.getKind());
if (element.getKind() == ElementKind.RESOURCE_VARIABLE) {
testResourceVariable(element);
resourceVariableCount++;
}
return super.visitVariable(node, cu);
}
}
}