Mercurial > jdk8-mips64-public > langtools / file comparison
comparison: test/tools/javac/T8019486/WrongLNTForLambdaTest.java
test/tools/javac/T8019486/WrongLNTForLambdaTest.java
- changeset 2165
- 864dafc5ab7a
- child 2186
- 6e0f31d61e56
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| 1 /* | |
| 2 * Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved. | |
| 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | |
| 4 * | |
| 5 * This code is free software; you can redistribute it and/or modify it | |
| 6 * under the terms of the GNU General Public License version 2 only, as | |
| 7 * published by the Free Software Foundation. Oracle designates this | |
| 8 * particular file as subject to the "Classpath" exception as provided | |
| 9 * by Oracle in the LICENSE file that accompanied this code. | |
| 10 * | |
| 11 * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 14 * version 2 for more details (a copy is included in the LICENSE file that | |
| 15 * accompanied this code). | |
| 16 * | |
| 17 * You should have received a copy of the GNU General Public License version | |
| 18 * 2 along with this work; if not, write to the Free Software Foundation, | |
| 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 20 * | |
| 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA | |
| 22 * or visit www.oracle.com if you need additional information or have any | |
| 23 * questions. | |
| 24 */ | |
| 25 | |
| 26 /* | |
| 27 * @test | |
| 28 * @bug 8019486 8026861 | |
| 29 * @summary javac, generates erroneous LVT for a test case with lambda code | |
| 30 * @library /tools/javac/lib | |
| 31 * @build ToolBox | |
| 32 * @run main WrongLNTForLambdaTest | |
| 33 */ | |
| 34 | |
| 35 import java.io.File; | |
| 36 import java.nio.file.Paths; | |
| 37 | |
| 38 import com.sun.tools.classfile.ClassFile; | |
| 39 import com.sun.tools.classfile.Code_attribute; | |
| 40 import com.sun.tools.classfile.LineNumberTable_attribute; | |
| 41 import com.sun.tools.classfile.Method; | |
| 42 import com.sun.tools.javac.util.Assert; | |
| 43 | |
| 44 public class WrongLNTForLambdaTest { | |
| 45 | |
| 46 static final String testSource = | |
| 47 /* 01 */ "import java.util.List;\n" + | |
| 48 /* 02 */ "import java.util.Arrays;\n" + | |
| 49 /* 03 */ "import java.util.stream.Collectors;\n" + | |
| 50 /* 04 */ "\n" + | |
| 51 /* 05 */ "public class Foo {\n" + | |
| 52 /* 06 */ " void bar(int value) {\n" + | |
| 53 /* 07 */ " final List<Integer> numbers = Arrays.asList(1, 2, 3);\n" + | |
| 54 /* 08 */ " final List<Integer> numbersPlusOne = \n" + | |
| 55 /* 09 */ " numbers.stream().map(number -> number / 1).collect(Collectors.toList());\n" + | |
| 56 /* 10 */ " }\n" + | |
| 57 /* 11 */ " void variablesInLambdas(int value) {\n" + | |
| 58 /* 12 */ " Runnable r1 = () -> {\n" + | |
| 59 /* 13 */ " int i = value;\n" + | |
| 60 /* 14 */ " class FooBar<T extends CharSequence> {\n" + | |
| 61 /* 15 */ " public void run() {\n" + | |
| 62 /* 16 */ " T t = null;\n" + | |
| 63 /* 17 */ " }\n" + | |
| 64 /* 18 */ " }\n" + | |
| 65 /* 19 */ " };\n" + | |
| 66 /* 20 */ " Runnable r2 = () -> System.err.println(1);\n" + | |
| 67 /* 21 */ " Runnable r3 = (Runnable & java.io.Serializable) this::foo;\n" + | |
| 68 /* 22 */ " Runnable r4 = super :: notify;\n" + | |
| 69 /* 23 */ " }\n" + | |
| 70 /* 24 */ " private void foo() {}\n" + | |
| 71 /* 25 */ "}"; | |
| 72 | |
| 73 static final int[][] simpleLambdaExpectedLNT = { | |
| 74 // {line-number, start-pc}, | |
| 75 {9, 0}, //number -> number / 1 | |
| 76 }; | |
| 77 | |
| 78 static final int[][] lambdaWithVarsExpectedLNT = { | |
| 79 // {line-number, start-pc}, | |
| 80 {13, 0}, //number -> number / 1 | |
| 81 {19, 2}, //number -> number / 1 | |
| 82 }; | |
| 83 | |
| 84 static final int[][] insideLambdaWithVarsExpectedLNT = { | |
| 85 // {line-number, start-pc}, | |
| 86 {16, 0}, //number -> number / 1 | |
| 87 {17, 2}, //number -> number / 1 | |
| 88 }; | |
| 89 | |
| 90 static final int[][] lambdaVoid2VoidExpectedLNT = { | |
| 91 // {line-number, start-pc}, | |
| 92 {20, 0}, //number -> number / 1 | |
| 93 }; | |
| 94 | |
| 95 static final int[][] deserializeExpectedLNT = { | |
| 96 // {line-number, start-pc}, | |
| 97 {05, 0}, //number -> number / 1 | |
| 98 }; | |
| 99 | |
| 100 static final int[][] lambdaBridgeExpectedLNT = { | |
| 101 // {line-number, start-pc}, | |
| 102 {22, 0}, //number -> number / 1 | |
| 103 }; | |
| 104 | |
| 105 public static void main(String[] args) throws Exception { | |
| 106 new WrongLNTForLambdaTest().run(); | |
| 107 } | |
| 108 | |
| 109 void run() throws Exception { | |
| 110 compileTestClass(); | |
| 111 checkClassFile(new File(Paths.get(System.getProperty("user.dir"), | |
| 112 "Foo.class").toUri()), "lambda$bar$0", simpleLambdaExpectedLNT); | |
| 113 checkClassFile(new File(Paths.get(System.getProperty("user.dir"), | |
| 114 "Foo.class").toUri()), "lambda$variablesInLambdas$1", lambdaWithVarsExpectedLNT); | |
| 115 checkClassFile(new File(Paths.get(System.getProperty("user.dir"), | |
| 116 "Foo$1FooBar.class").toUri()), "run", insideLambdaWithVarsExpectedLNT); | |
| 117 checkClassFile(new File(Paths.get(System.getProperty("user.dir"), | |
| 118 "Foo.class").toUri()), "lambda$variablesInLambdas$2", lambdaVoid2VoidExpectedLNT); | |
| 119 checkClassFile(new File(Paths.get(System.getProperty("user.dir"), | |
| 120 "Foo.class").toUri()), "$deserializeLambda$", deserializeExpectedLNT); | |
| 121 checkClassFile(new File(Paths.get(System.getProperty("user.dir"), | |
| 122 "Foo.class").toUri()), "lambda$MR$variablesInLambdas$notify$8bc4f5bd$1", lambdaBridgeExpectedLNT); | |
| 123 } | |
| 124 | |
| 125 void compileTestClass() throws Exception { | |
| 126 ToolBox.JavaToolArgs javacSuccessArgs = | |
| 127 new ToolBox.JavaToolArgs().setSources(testSource); | |
| 128 ToolBox.javac(javacSuccessArgs); | |
| 129 } | |
| 130 | |
| 131 void checkClassFile(final File cfile, String methodToFind, int[][] expectedLNT) throws Exception { | |
| 132 ClassFile classFile = ClassFile.read(cfile); | |
| 133 boolean methodFound = false; | |
| 134 for (Method method : classFile.methods) { | |
| 135 if (method.getName(classFile.constant_pool).equals(methodToFind)) { | |
| 136 methodFound = true; | |
| 137 Code_attribute code = (Code_attribute) method.attributes.get("Code"); | |
| 138 LineNumberTable_attribute lnt = | |
| 139 (LineNumberTable_attribute) code.attributes.get("LineNumberTable"); | |
| 140 Assert.check(lnt.line_number_table_length == expectedLNT.length, | |
| 141 "The LineNumberTable found has a length different to the expected one"); | |
| 142 int i = 0; | |
| 143 for (LineNumberTable_attribute.Entry entry: lnt.line_number_table) { | |
| 144 Assert.check(entry.line_number == expectedLNT[i][0] && | |
| 145 entry.start_pc == expectedLNT[i][1], | |
| 146 "LNT entry at pos " + i + " differ from expected." + | |
| 147 "Found " + entry.line_number + ":" + entry.start_pc + | |
| 148 ". Expected " + expectedLNT[i][0] + ":" + expectedLNT[i][1]); | |
| 149 i++; | |
| 150 } | |
| 151 } | |
| 152 } | |
| 153 Assert.check(methodFound, "The seek method was not found"); | |
| 154 } | |
| 155 | |
| 156 void error(String msg) { | |
| 157 throw new AssertionError(msg); | |
| 158 } | |
| 159 | |
| 160 } |
