Mercurial > jdk8-mips64-public > langtools / annotate
test/tools/javac/lambdaShapes/org/openjdk/tests/separate/ClassToInterfaceConverter.java@860f1d21763a (annotated)
test/tools/javac/lambdaShapes/org/openjdk/tests/separate/ClassToInterfaceConverter.java
Thu, 24 Oct 2013 16:52:27 -0700
- author
- rfield
- date
- Thu, 24 Oct 2013 16:52:27 -0700
- changeset 2170
- 860f1d21763a
- parent 1448
- 7d34e91f66bb
- child 2525
- 2eb010b6cb22
- permissions
- -rw-r--r--
8027220: DefaultMethodsTest: Change test to match spec
Reviewed-by: ksrini
| rfield@1422 | 1 | /* |
| katleman@1448 | 2 | * Copyright (c) 2012, Oracle and/or its affiliates. All rights reserved. |
| rfield@1422 | 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| rfield@1422 | 4 | * |
| rfield@1422 | 5 | * This code is free software; you can redistribute it and/or modify it |
| rfield@1422 | 6 | * under the terms of the GNU General Public License version 2 only, as |
| rfield@1422 | 7 | * published by the Free Software Foundation. Oracle designates this |
| rfield@1422 | 8 | * particular file as subject to the "Classpath" exception as provided |
| rfield@1422 | 9 | * by Oracle in the LICENSE file that accompanied this code. |
| rfield@1422 | 10 | * |
| rfield@1422 | 11 | * This code is distributed in the hope that it will be useful, but WITHOUT |
| rfield@1422 | 12 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| rfield@1422 | 13 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| rfield@1422 | 14 | * version 2 for more details (a copy is included in the LICENSE file that |
| rfield@1422 | 15 | * accompanied this code). |
| rfield@1422 | 16 | * |
| rfield@1422 | 17 | * You should have received a copy of the GNU General Public License version |
| rfield@1422 | 18 | * 2 along with this work; if not, write to the Free Software Foundation, |
| rfield@1422 | 19 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| rfield@1422 | 20 | * |
| rfield@1422 | 21 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| rfield@1422 | 22 | * or visit www.oracle.com if you need additional information or have any |
| rfield@1422 | 23 | * questions. |
| rfield@1422 | 24 | */ |
| rfield@1422 | 25 | |
| rfield@1422 | 26 | package org.openjdk.tests.separate; |
| rfield@1422 | 27 | |
| rfield@1422 | 28 | import java.io.*; |
| rfield@1422 | 29 | import java.util.*; |
| rfield@1422 | 30 | |
| rfield@1422 | 31 | public class ClassToInterfaceConverter implements ClassFilePreprocessor { |
| rfield@1422 | 32 | |
| rfield@1422 | 33 | private String whichClass; |
| rfield@1422 | 34 | |
| rfield@1422 | 35 | public ClassToInterfaceConverter(String className) { |
| rfield@1422 | 36 | this.whichClass = className; |
| rfield@1422 | 37 | } |
| rfield@1422 | 38 | |
| rfield@1422 | 39 | private boolean utf8Matches(ClassFile.CpEntry entry, String v) { |
| rfield@1422 | 40 | if (!(entry instanceof ClassFile.CpUtf8)) { |
| rfield@1422 | 41 | return false; |
| rfield@1422 | 42 | } |
| rfield@1422 | 43 | ClassFile.CpUtf8 utf8 = (ClassFile.CpUtf8)entry; |
| rfield@1422 | 44 | if (v.length() != utf8.bytes.length) { |
| rfield@1422 | 45 | return false; |
| rfield@1422 | 46 | } |
| rfield@1422 | 47 | for (int i = 0; i < v.length(); ++i) { |
| rfield@1422 | 48 | if (v.charAt(i) != utf8.bytes[i]) { |
| rfield@1422 | 49 | return false; |
| rfield@1422 | 50 | } |
| rfield@1422 | 51 | } |
| rfield@1422 | 52 | return true; |
| rfield@1422 | 53 | } |
| rfield@1422 | 54 | |
| rfield@1422 | 55 | private void convertToInterface(ClassFile cf) { |
| rfield@1422 | 56 | cf.access_flags = 0x0601; // ACC_INTERFACE | ACC_ABSTRACT | ACC_PUBLIC |
| rfield@1422 | 57 | ArrayList<ClassFile.Method> new_methods = new ArrayList<>(); |
| rfield@1422 | 58 | // Find <init> method and delete it |
| rfield@1422 | 59 | for (int i = 0; i < cf.methods.size(); ++i) { |
| rfield@1422 | 60 | ClassFile.Method method = cf.methods.get(i); |
| rfield@1422 | 61 | ClassFile.CpEntry name = cf.constant_pool.get(method.name_index); |
| rfield@1422 | 62 | if (!utf8Matches(name, "<init>")) { |
| rfield@1422 | 63 | new_methods.add(method); |
| rfield@1422 | 64 | } |
| rfield@1422 | 65 | } |
| rfield@1422 | 66 | cf.methods = new_methods; |
| rfield@1422 | 67 | } |
| rfield@1422 | 68 | |
| rfield@1422 | 69 | public byte[] preprocess(String classname, byte[] bytes) { |
| rfield@1422 | 70 | ClassFile cf = new ClassFile(bytes); |
| rfield@1422 | 71 | |
| rfield@1422 | 72 | ClassFile.CpEntry entry = cf.constant_pool.get(cf.this_class); |
| rfield@1422 | 73 | ClassFile.CpEntry name = cf.constant_pool.get( |
| rfield@1422 | 74 | ((ClassFile.CpClass)entry).name_index); |
| rfield@1422 | 75 | if (utf8Matches(name, whichClass)) { |
| rfield@1422 | 76 | convertToInterface(cf); |
| rfield@1422 | 77 | return cf.toByteArray(); |
| rfield@1422 | 78 | } else { |
| rfield@1422 | 79 | return bytes; // unmodified |
| rfield@1422 | 80 | } |
| rfield@1422 | 81 | } |
| rfield@1422 | 82 | |
| rfield@1422 | 83 | /* |
| rfield@1422 | 84 | public static void main(String argv[]) throws Exception { |
| rfield@1422 | 85 | File input = new File(argv[0]); |
| rfield@1422 | 86 | byte[] buffer = new byte[(int)input.length()]; |
| rfield@1422 | 87 | new FileInputStream(input).read(buffer); |
| rfield@1422 | 88 | |
| rfield@1422 | 89 | ClassFilePreprocessor cfp = new ClassToInterfaceConverter("Hello"); |
| rfield@1422 | 90 | byte[] cf = cfp.preprocess(argv[0], buffer); |
| rfield@1422 | 91 | new FileOutputStream(argv[0] + ".mod").write(cf); |
| rfield@1422 | 92 | } |
| rfield@1422 | 93 | */ |
| rfield@1422 | 94 | } |
