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/*
* Copyright (c) 2012, 2015, 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 8005046 8011052 8025087
* @summary Test basic properties of javax.lang.element.ExecutableElement
* @author Joseph D. Darcy
* @library /tools/javac/lib
* @modules java.compiler
* jdk.compiler
* @build JavacTestingAbstractProcessor TestExecutableElement
* @compile -processor TestExecutableElement -proc:only -AexpectedMethodCount=7 TestExecutableElement.java
* @compile/process -processor TestExecutableElement -proc:only -AexpectedMethodCount=3 ProviderOfDefault
*/
import java.lang.annotation.*;
import java.util.Formatter;
import java.util.Set;
import java.util.regex.*;
import javax.annotation.processing.*;
import javax.lang.model.element.*;
import static javax.lang.model.util.ElementFilter.*;
import static javax.tools.Diagnostic.Kind.*;
/**
* Test some basic workings of javax.lang.element.ExecutableElement
*/
@SupportedOptions("expectedMethodCount")
public class TestExecutableElement extends JavacTestingAbstractProcessor implements ProviderOfDefault {
private int seenMethods = 0;
@IsDefault(false)
public boolean process(Set<? extends TypeElement> annotations,
RoundEnvironment roundEnv) {
if (!roundEnv.processingOver()) {
for (Element element : roundEnv.getRootElements()) {
for (ExecutableElement method : methodsIn(element.getEnclosedElements())) {
checkIsDefault(method);
seenMethods++;
}
}
} else {
String expectedMethodCountStr = processingEnv.getOptions().get("expectedMethodCount");
if (expectedMethodCountStr == null) {
messager.printMessage(ERROR, "No expected method count specified.");
} else {
int expectedMethodCount = Integer.parseInt(expectedMethodCountStr);
if (seenMethods != expectedMethodCount) {
messager.printMessage(ERROR, "Wrong number of seen methods: " + seenMethods);
}
}
}
return true;
}
@IsDefault(false)
void checkIsDefault(ExecutableElement method) {
System.out.println("Testing " + method);
IsDefault expectedIsDefault = method.getAnnotation(IsDefault.class);
boolean expectedDefault = (expectedIsDefault != null) ?
expectedIsDefault.value() :
false;
boolean methodIsDefault = method.isDefault();
if (expectedDefault) {
if (!method.getModifiers().contains(Modifier.DEFAULT)) {
messager.printMessage(ERROR,
"Modifier \"default\" not present as expected.",
method);
}
// Check printing output
java.io.Writer stringWriter = new java.io.StringWriter();
eltUtils.printElements(stringWriter, method);
Pattern p = Pattern.compile(expectedIsDefault.expectedTextRegex(), Pattern.DOTALL);
if (! p.matcher(stringWriter.toString()).matches()) {
messager.printMessage(ERROR,
new Formatter().format("Unexpected printing ouptput:%n\tgot %s,%n\texpected pattern %s.",
stringWriter.toString(),
expectedIsDefault.expectedTextRegex()).toString(),
method);
}
System.out.println("\t" + stringWriter.toString());
} else {
if (method.getModifiers().contains(Modifier.DEFAULT)) {
messager.printMessage(ERROR,
"Modifier \"default\" present when not expected.",
method);
}
}
if (methodIsDefault != expectedDefault) {
messager.printMessage(ERROR,
new Formatter().format("Unexpected Executable.isDefault result: got ``%s'', expected ``%s''.",
expectedDefault,
methodIsDefault).toString(),
method);
}
}
}
/**
* Expected value of the ExecutableElement.isDefault method.
*/
@Retention(RetentionPolicy.RUNTIME)
@Target(ElementType.METHOD)
@interface IsDefault {
boolean value();
String expectedTextRegex() default "";
}
/**
* Test interface to provide a default method.
*/
interface ProviderOfDefault {
@IsDefault(false)
boolean process(Set<? extends TypeElement> annotations,
RoundEnvironment roundEnv);
@IsDefault(value=true, expectedTextRegex="\\s*@IsDefault\\(.*\\)\\s*default strictfp void quux\\(\\);\\s*$")
default strictfp void quux() {};
@IsDefault(false)
static void statik() {}
}
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