94 lines
3.5 KiB
Java
94 lines
3.5 KiB
Java
/*
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* Copyright 2016 Google Inc. All Rights Reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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import static java.util.stream.Collectors.toCollection;
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import java.lang.annotation.ElementType;
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import java.lang.annotation.Retention;
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import java.lang.annotation.RetentionPolicy;
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import java.lang.annotation.Target;
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import java.util.ArrayList;
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import java.util.Arrays;
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import java.util.List;
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import java.util.Set;
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import javax.annotation.processing.RoundEnvironment;
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import javax.annotation.processing.SupportedAnnotationTypes;
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import javax.lang.model.element.Element;
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import javax.lang.model.element.ExecutableElement;
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import javax.lang.model.element.TypeElement;
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/*
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* @test
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* @bug 8170667
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* @summary ClassReader assigns method parameters from MethodParameters incorrectly when long/double
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* parameters are present
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* @library /tools/javac/lib
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* @modules java.compiler
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* jdk.compiler
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* @compile -parameters ParameterProcessor.java
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* @compile/process -proc:only -processor ParameterProcessor ParameterProcessor
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*/
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@SupportedAnnotationTypes("ParameterProcessor.ParameterNames")
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public class ParameterProcessor extends JavacTestingAbstractProcessor {
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@Retention(RetentionPolicy.RUNTIME)
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@Target(ElementType.METHOD)
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@interface ParameterNames {
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String[] value() default {};
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}
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@ParameterProcessor.ParameterNames({"a", "b", "c"})
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void f(int a, int b, int c) {}
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@ParameterProcessor.ParameterNames({"d", "e", "f"})
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void g(int d, long e, int f) {}
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@ParameterProcessor.ParameterNames({"g", "h", "i", "j"})
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void h(int g, double h, int i, int j) {}
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@Override
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public boolean process(Set<? extends TypeElement> annotations, RoundEnvironment roundEnv) {
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for (Element element : roundEnv.getElementsAnnotatedWith(ParameterNames.class)) {
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ParameterNames names = element.getAnnotation(ParameterNames.class);
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if (names == null) {
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continue;
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}
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List<String> expected = Arrays.asList(names.value());
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List<String> actual =
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((ExecutableElement) element)
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.getParameters()
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.stream()
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.map(p -> p.getSimpleName().toString())
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.collect(toCollection(ArrayList::new));
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if (!expected.equals(actual)) {
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String message =
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String.format(
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"bad parameter names for %s#%s; expected: %s, was: %s",
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element, element, expected, actual);
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messager.printError(message);
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}
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}
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return false;
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}
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}
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