Mercurial > jdk8-mips64-public > langtools / file comparison
comparison: test/tools/javac/defaultMethods/TestDefaultBody.java
test/tools/javac/defaultMethods/TestDefaultBody.java
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- 959103a6100f
- child 2525
- 2eb010b6cb22
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| -1:000000000000 | 0:959103a6100f |
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| 1 /* | |
| 2 * Copyright (c) 2011, 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. | |
| 8 * | |
| 9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 12 * version 2 for more details (a copy is included in the LICENSE file that | |
| 13 * accompanied this code). | |
| 14 * | |
| 15 * You should have received a copy of the GNU General Public License version | |
| 16 * 2 along with this work; if not, write to the Free Software Foundation, | |
| 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 18 * | |
| 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA | |
| 20 * or visit www.oracle.com if you need additional information or have any | |
| 21 * questions. | |
| 22 */ | |
| 23 | |
| 24 /* | |
| 25 * @test | |
| 26 * @bug 7192246 | |
| 27 * @summary check that code attributed for default methods is correctly generated | |
| 28 */ | |
| 29 | |
| 30 import com.sun.tools.classfile.AccessFlags; | |
| 31 import com.sun.tools.classfile.Attribute; | |
| 32 import com.sun.tools.classfile.ClassFile; | |
| 33 import com.sun.tools.classfile.ConstantPool.*; | |
| 34 import com.sun.tools.classfile.Code_attribute; | |
| 35 import com.sun.tools.classfile.Instruction; | |
| 36 import com.sun.tools.classfile.Method; | |
| 37 | |
| 38 import com.sun.tools.classfile.Opcode; | |
| 39 import java.io.*; | |
| 40 | |
| 41 public class TestDefaultBody { | |
| 42 | |
| 43 interface TestInterface { | |
| 44 int no_default(int i); | |
| 45 default int yes_default(int i) { return impl(this, i); } | |
| 46 } | |
| 47 | |
| 48 static int impl(TestInterface ti, int i) { return 0; } | |
| 49 | |
| 50 static final String TARGET_CLASS_NAME = "TestDefaultBody"; | |
| 51 static final String TARGET_NAME = "impl"; | |
| 52 static final String TARGET_TYPE = "(LTestDefaultBody$TestInterface;I)I"; | |
| 53 static final String SUBTEST_NAME = TestInterface.class.getName() + ".class"; | |
| 54 static final String TEST_METHOD_NAME = "yes_default"; | |
| 55 | |
| 56 public static void main(String... args) throws Exception { | |
| 57 new TestDefaultBody().run(); | |
| 58 } | |
| 59 | |
| 60 public void run() throws Exception { | |
| 61 String workDir = System.getProperty("test.classes"); | |
| 62 File compiledTest = new File(workDir, SUBTEST_NAME); | |
| 63 verifyDefaultBody(compiledTest); | |
| 64 } | |
| 65 | |
| 66 void verifyDefaultBody(File f) { | |
| 67 System.err.println("verify: " + f); | |
| 68 try { | |
| 69 ClassFile cf = ClassFile.read(f); | |
| 70 Method testMethod = null; | |
| 71 Code_attribute codeAttr = null; | |
| 72 for (Method m : cf.methods) { | |
| 73 codeAttr = (Code_attribute)m.attributes.get(Attribute.Code); | |
| 74 String mname = m.getName(cf.constant_pool); | |
| 75 if (mname.equals(TEST_METHOD_NAME)) { | |
| 76 testMethod = m; | |
| 77 break; | |
| 78 } else { | |
| 79 codeAttr = null; | |
| 80 } | |
| 81 } | |
| 82 if (testMethod == null) { | |
| 83 throw new Error("Test method not found"); | |
| 84 } | |
| 85 if (testMethod.access_flags.is(AccessFlags.ACC_ABSTRACT)) { | |
| 86 throw new Error("Test method is abstract"); | |
| 87 } | |
| 88 if (codeAttr == null) { | |
| 89 throw new Error("Code attribute in test method not found"); | |
| 90 } | |
| 91 | |
| 92 boolean found = false; | |
| 93 for (Instruction instr : codeAttr.getInstructions()) { | |
| 94 if (instr.getOpcode() == Opcode.INVOKESTATIC) { | |
| 95 found = true; | |
| 96 int pc_index = instr.getShort(1); | |
| 97 CONSTANT_Methodref_info mref = (CONSTANT_Methodref_info)cf.constant_pool.get(pc_index); | |
| 98 String className = mref.getClassName(); | |
| 99 String targetName = mref.getNameAndTypeInfo().getName(); | |
| 100 String targetType = mref.getNameAndTypeInfo().getType(); | |
| 101 | |
| 102 if (!className.equals(TARGET_CLASS_NAME)) { | |
| 103 throw new Error("unexpected class in default method body " + className); | |
| 104 } | |
| 105 if (!targetName.equals(TARGET_NAME)) { | |
| 106 throw new Error("unexpected method name in default method body " + targetName); | |
| 107 } | |
| 108 if (!targetType.equals(TARGET_TYPE)) { | |
| 109 throw new Error("unexpected method type in default method body " + targetType); | |
| 110 } | |
| 111 break; | |
| 112 } | |
| 113 } | |
| 114 | |
| 115 if (!found) { | |
| 116 throw new Error("no invokestatic found in default method body"); | |
| 117 } | |
| 118 } catch (Exception e) { | |
| 119 e.printStackTrace(); | |
| 120 throw new Error("error reading " + f +": " + e); | |
| 121 } | |
| 122 } | |
| 123 } |
