406 lines
12 KiB
Java
406 lines
12 KiB
Java
/*
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* Copyright (c) 2016, 2019, Oracle and/or its affiliates. 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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/*
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* @test
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* @bug 8164819
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* @summary Test of toString on normal annotations
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* @library /tools/javac/lib
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* @build JavacTestingAbstractProcessor AnnotationToStringTest
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* @compile -processor AnnotationToStringTest -proc:only AnnotationToStringTest.java
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*/
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// See also the sibling core reflection test
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// test/jdk/java/lang/annotation/AnnotationToStringTest.java
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import java.lang.annotation.*;
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import java.lang.reflect.*;
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import java.util.*;
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import javax.annotation.processing.*;
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import javax.lang.model.AnnotatedConstruct;
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import javax.lang.model.element.*;
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import javax.lang.model.util.*;
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/**
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* The expected string values are stored in @ExpectedString
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* annotations. The essence of the test is comparing the toString()
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* result of annotations to the corresponding ExpectedString.value().
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*
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* Two flavors of comparison are made:
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*
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* 1) Against the AnnotationMirror value from getAnnotationMirrors()
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*
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* 2) Against the *Annotation* from getAnnotation(Class<A>)
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*
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* These have separate but related implementations.
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*/
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public class AnnotationToStringTest extends JavacTestingAbstractProcessor {
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public boolean process(Set<? extends TypeElement> annotations,
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RoundEnvironment roundEnv) {
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if (!roundEnv.processingOver()) {
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int failures = 0;
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TypeElement primHostElt =
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Objects.requireNonNull(elements.getTypeElement("AnnotationToStringTest.PrimHost"));
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List<? extends AnnotationMirror> annotMirrors = primHostElt.getAnnotationMirrors();
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String expectedString = primHostElt.getAnnotation(MostlyPrimitive.class).toString();
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failures += check(expectedString,
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primHostElt.getAnnotation(ExpectedString.class).value());
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failures += check(expectedString,
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retrieveAnnotationMirrorAsString(primHostElt,
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"MostlyPrimitive"));
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failures += classyTest();
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failures += arrayAnnotationTest();
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if (failures > 0)
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throw new RuntimeException(failures + " failures");
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}
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return true;
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}
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/**
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* Examine annotation mirrors, find the one that matches
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* annotationName, and return its toString value.
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*/
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private String retrieveAnnotationMirrorAsString(AnnotatedConstruct annotated,
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String annotationName) {
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return retrieveAnnotationMirror(annotated, annotationName).toString();
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}
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private String retrieveAnnotationMirrorValue(AnnotatedConstruct annotated,
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String annotationName) {
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AnnotationMirror annotationMirror =
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retrieveAnnotationMirror(annotated, annotationName);
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for (var entry : annotationMirror.getElementValues().entrySet()) {
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if (entry.getKey().getSimpleName().contentEquals("value")) {
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return entry.getValue().toString();
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}
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}
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throw new RuntimeException("Annotation value() method not found: " +
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annotationMirror.toString());
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}
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private AnnotationMirror retrieveAnnotationMirror(AnnotatedConstruct annotated,
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String annotationName) {
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for (AnnotationMirror annotationMirror : annotated.getAnnotationMirrors()) {
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System.out.println(annotationMirror.getAnnotationType());
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if (annotationMirror
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.getAnnotationType()
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.toString()
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.equals(annotationName) ) {
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return annotationMirror;
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}
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}
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throw new RuntimeException("Annotation " + annotationName + " not found.");
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}
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private static int check(String expected, String actual) {
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if (!expected.equals(actual)) {
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System.err.printf("ERROR: Expected ''%s'';%ngot ''%s''.\n",
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expected, actual);
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return 1;
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} else
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return 0;
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}
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@ExpectedString(
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"@MostlyPrimitive(c0='a', "+
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"c1='\\'', " +
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"b0=(byte)0x01, " +
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"i0=1, " +
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"i1=2, " +
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"f0=1.0f, " +
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"f1=0.0f/0.0f, " +
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"d0=0.0, " +
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"d1=1.0/0.0, " +
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"l0=5L, " +
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"l1=9223372036854775807L, " +
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"l2=-9223372036854775808L, " +
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"l3=-2147483648L, " +
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"s0=\"Hello world.\", " +
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"s1=\"a\\\"b\", " +
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"class0=Obj[].class, " +
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"classArray={Obj[].class})")
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@MostlyPrimitive(
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c0='a',
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c1='\'',
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b0=1,
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i0=1,
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i1=2,
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f0=1.0f,
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f1=Float.NaN,
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d0=0.0,
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d1=2.0/0.0,
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l0=5,
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l1=Long.MAX_VALUE,
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l2=Long.MIN_VALUE,
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l3=Integer.MIN_VALUE,
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s0="Hello world.",
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s1="a\"b",
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class0=Obj[].class,
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classArray={Obj[].class}
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)
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static class PrimHost{}
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private int classyTest() {
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int failures = 0;
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TypeElement annotationHostElt =
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Objects.requireNonNull(elements.getTypeElement("AnnotationToStringTest.AnnotationHost"));
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for (VariableElement f : ElementFilter.fieldsIn(annotationHostElt.getEnclosedElements())) {
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String expected = f.getAnnotation(ExpectedString.class).value();
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Annotation a = f.getAnnotation(Classy.class);
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System.out.println(a);
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failures += check(expected, a.toString());
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failures += check(expected,
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retrieveAnnotationMirrorAsString(f, "Classy") );
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}
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return failures;
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}
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static class AnnotationHost {
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@ExpectedString(
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"@Classy(Obj.class)")
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@Classy(Obj.class)
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public int f0;
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@ExpectedString(
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"@Classy(Obj[].class)")
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@Classy(Obj[].class)
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public int f1;
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@ExpectedString(
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"@Classy(Obj[][].class)")
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@Classy(Obj[][].class)
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public int f2;
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@ExpectedString(
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"@Classy(Obj[][][].class)")
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@Classy(Obj[][][].class)
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public int f3;
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@ExpectedString(
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"@Classy(int.class)")
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@Classy(int.class)
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public int f4;
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@ExpectedString(
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"@Classy(int[][][].class)")
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@Classy(int[][][].class)
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public int f5;
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}
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/**
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* Each field should have two annotations, the first being
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* @ExpectedString and the second the annotation under test.
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*/
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private int arrayAnnotationTest() {
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int failures = 0;
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TypeElement arrayAnnotationHostElt =
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Objects.requireNonNull(elements
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.getTypeElement("AnnotationToStringTest.ArrayAnnotationHost"));
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for (VariableElement f :
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ElementFilter.fieldsIn(arrayAnnotationHostElt.getEnclosedElements())) {
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var annotations = f.getAnnotationMirrors();
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// String expected = retrieveAnnotationMirrorValue(f, "ExpectedString");
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String expected = f.getAnnotation(ExpectedString.class).value();
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// Problem with
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// Need a de-quote method...
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// expected = expected.substring(1, expected.length() - 1);
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failures +=
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check(expected,
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annotations.get(1).toString());
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// Get the array-valued annotation as an annotation
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failures +=
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check(expected,
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retrieveAnnotationMirrorAsString(f,
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annotations.get(1)
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.getAnnotationType().toString()));
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}
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return failures;
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}
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static class ArrayAnnotationHost {
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@ExpectedString(
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"@BooleanArray({true, false, true})")
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@BooleanArray({true, false, true})
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public boolean[] f0;
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@ExpectedString(
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"@FloatArray({3.0f, 4.0f, 0.0f/0.0f, -1.0f/0.0f, 1.0f/0.0f})")
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@FloatArray({3.0f, 4.0f, Float.NaN, Float.NEGATIVE_INFINITY, Float.POSITIVE_INFINITY})
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public float[] f1;
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@ExpectedString(
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"@DoubleArray({1.0, 2.0, 0.0/0.0, 1.0/0.0, -1.0/0.0})")
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@DoubleArray({1.0, 2.0, Double.NaN, Double.POSITIVE_INFINITY, Double.NEGATIVE_INFINITY,})
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public double[] f2;
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@ExpectedString(
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"@ByteArray({(byte)0x0a, (byte)0x0b, (byte)0x0c})")
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@ByteArray({10, 11, 12})
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public byte[] f3;
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@ExpectedString(
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"@ShortArray({0, 4, 5})")
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@ShortArray({0, 4, 5})
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public short[] f4;
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@ExpectedString(
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"@CharArray({'a', 'b', 'c', '\\''})")
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@CharArray({'a', 'b', 'c', '\''})
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public char[] f5;
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@ExpectedString(
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"@IntArray({1})")
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@IntArray({1})
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public int[] f6;
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@ExpectedString(
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"@LongArray({-9223372036854775808L, -2147483649L, -2147483648L," +
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" -2147483647L, 2147483648L, 9223372036854775807L})")
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@LongArray({Long.MIN_VALUE, Integer.MIN_VALUE-1L, Integer.MIN_VALUE,
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-Integer.MAX_VALUE, Integer.MAX_VALUE+1L, Long.MAX_VALUE})
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public long[] f7;
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@ExpectedString(
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"@StringArray({\"A\", \"B\", \"C\", \"\\\"Quote\\\"\"})")
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@StringArray({"A", "B", "C", "\"Quote\""})
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public String[] f8;
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@ExpectedString(
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"@ClassArray({int.class, Obj[].class})")
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@ClassArray({int.class, Obj[].class})
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public Class<?>[] f9;
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@ExpectedString(
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"@EnumArray({SOURCE})")
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@EnumArray({RetentionPolicy.SOURCE})
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public RetentionPolicy[] f10;
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}
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}
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// ------------ Supporting types ------------
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class Obj {}
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@Retention(RetentionPolicy.RUNTIME)
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@interface ExpectedString {
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String value();
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}
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@Retention(RetentionPolicy.RUNTIME)
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@interface Classy {
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Class<?> value();
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}
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@Retention(RetentionPolicy.RUNTIME)
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@interface BooleanArray {
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boolean[] value();
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}
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@Retention(RetentionPolicy.RUNTIME)
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@interface FloatArray {
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float[] value();
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}
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@Retention(RetentionPolicy.RUNTIME)
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@interface DoubleArray {
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double[] value();
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}
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@Retention(RetentionPolicy.RUNTIME)
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@interface ByteArray {
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byte[] value();
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}
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@Retention(RetentionPolicy.RUNTIME)
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@interface ShortArray {
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short[] value();
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}
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@Retention(RetentionPolicy.RUNTIME)
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@interface CharArray {
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char[] value();
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}
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@Retention(RetentionPolicy.RUNTIME)
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@interface IntArray {
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int[] value();
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}
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@Retention(RetentionPolicy.RUNTIME)
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@interface LongArray {
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long[] value();
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}
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@Retention(RetentionPolicy.RUNTIME)
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@interface ClassArray {
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Class<?>[] value() default {int.class, Obj[].class};
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}
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@Retention(RetentionPolicy.RUNTIME)
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@interface StringArray {
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String[] value();
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}
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@Retention(RetentionPolicy.RUNTIME)
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@interface EnumArray {
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RetentionPolicy[] value();
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}
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@Retention(RetentionPolicy.RUNTIME)
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@interface MostlyPrimitive {
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char c0();
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char c1();
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byte b0();
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int i0();
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int i1();
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float f0();
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float f1();
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double d0();
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double d1();
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long l0();
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long l1();
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long l2();
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long l3();
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String s0();
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String s1();
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Class<?> class0();
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Class<?>[] classArray();
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}
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