| /* |
| * Copyright (c) 2009, 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 6471577 6517779 |
| * @summary Test Elements.getConstantExpression |
| * @author Joseph D. Darcy |
| * @library /tools/javac/lib |
| * @modules java.compiler |
| * jdk.compiler |
| * @build JavacTestingAbstractProcessor TestGetConstantExpression |
| * @compile -processor TestGetConstantExpression Foo.java |
| */ |
| |
| import java.util.Set; |
| import javax.annotation.processing.*; |
| import javax.lang.model.SourceVersion; |
| import static javax.lang.model.SourceVersion.*; |
| import javax.lang.model.element.*; |
| import javax.lang.model.util.*; |
| import static javax.lang.model.util.ElementFilter.*; |
| import static javax.tools.Diagnostic.Kind.*; |
| import static javax.tools.StandardLocation.*; |
| import java.io.*; |
| |
| /** |
| * Test basic workings of Elements.getConstantExpression. |
| */ |
| public class TestGetConstantExpression extends JavacTestingAbstractProcessor { |
| private int round = 1; |
| |
| /** |
| * Check expected behavior on classes and packages. |
| */ |
| public boolean process(Set<? extends TypeElement> annotations, |
| RoundEnvironment roundEnv) { |
| int errors = 0; |
| boolean processingOver = roundEnv.processingOver(); |
| |
| if (!processingOver && round == 1) { |
| errors += expectIllegalArgumentException(null); |
| errors += expectIllegalArgumentException(this); |
| |
| // Generate source code with various constant values and |
| // make sure it compiles. |
| |
| try { |
| PrintWriter pw = new PrintWriter(filer.createSourceFile("ConstantTest").openWriter()); |
| try { |
| Boolean[] booleans = {true, false}; |
| Byte[] bytes = {Byte.MIN_VALUE, -1, 0, 1, Byte.MAX_VALUE}; |
| Short[] shorts = {Short.MIN_VALUE, -1, 0, 1, Short.MAX_VALUE}; |
| Integer[] ints = {Integer.MIN_VALUE, -1, 0, 1, Integer.MAX_VALUE}; |
| Long[] longs = {Long.MIN_VALUE, -1L, 0L,1L, Long.MAX_VALUE}; |
| Character[] chars = {Character.MIN_VALUE, ' ', '\t', 'a', 'b', 'c', '~', Character.MAX_VALUE}; |
| Float[] floats = {Float.NaN, Float.NEGATIVE_INFINITY, -1.0f, -0.0f, 0.0f, 1.0f, Float.POSITIVE_INFINITY}; |
| Double[] doubles = {Double.NaN, Double.NEGATIVE_INFINITY, -1.0, -0.0, 0.0, 1.0, Double.POSITIVE_INFINITY}; |
| |
| pw.println("class ConstantTest {"); |
| pw.println(String.format(" private static boolean[] booleans = {%s};", |
| printConstants(booleans))); |
| pw.println(String.format(" private static byte[] bytes = {%s};", |
| printConstants(bytes))); |
| pw.println(String.format(" private static short[] shorts = {%s};", |
| printConstants(shorts))); |
| pw.println(String.format(" private static int[] ints = {%s};", |
| printConstants(ints))); |
| pw.println(String.format(" private static long[] longs = {%s};", |
| printConstants(longs))); |
| pw.println(String.format(" private static char[] chars = {%s};", |
| printConstants(chars))); |
| pw.println(String.format(" private static float[] floats = {%s};", |
| printConstants(floats))); |
| pw.println(String.format(" private static double[] doubles = {%s};", |
| printConstants(doubles))); |
| pw.println("}"); |
| } finally { |
| pw.close(); |
| } |
| } catch(IOException io) { |
| throw new RuntimeException(io); |
| } |
| round++; |
| } else if (processingOver) { |
| if (errors > 0) { |
| throw new RuntimeException(); |
| } |
| } |
| return true; |
| } |
| |
| String printConstants(Object[] constants) { |
| StringBuilder sb = new StringBuilder(); |
| |
| for(Object o : constants) { |
| sb.append(eltUtils.getConstantExpression(o)); |
| sb.append(", "); |
| } |
| return sb.toString(); |
| } |
| |
| int expectIllegalArgumentException(Object o) { |
| String s = ""; |
| try { |
| s = eltUtils.getConstantExpression(o); |
| System.err.println("Unexpected string returned: " + s); |
| return 1; |
| } catch (IllegalArgumentException iae) { |
| return 0; |
| } |
| } |
| } |