1 /* 2 * Copyright (c) 2012, 2018, 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 package vm.compiler.optimizations.stringconcat.explicit; 24 25 import nsk.share.StringGoldChecker; 26 import vm.compiler.share.CompilerTest; 27 import vm.compiler.share.CompilerTestLauncher; 28 import vm.compiler.share.Random; 29 30 public class Explicit01 { 31 32 private static final String GOLDEN_HASH = "-914118083"; 33 34 private static StringBuilder staticSB = new StringBuilder(); 35 private static Random random = new Random(11); 36 private static final String PRE = "pre\u307E\u3048\u306B"; 37 private static final String POST = "post\u3042\u3068\u3067"; 38 39 private static void crop(StringBuilder sb) { 40 int max = 100; 41 if (sb.length() > max) { 42 sb.delete(0, 20); 43 sb.delete(60, sb.length()); 44 } 45 } 46 47 private static String randomCut(String s, int size) { 48 StringBuilder res = new StringBuilder(); 49 for (int i = 0; i < size; i++) { 50 int r = random.nextInt(s.length()); 51 res.append(s.charAt(r)); 52 } 53 return res.toString(); 54 } 55 56 public static void main(String[] args) { 57 StringGoldChecker goldChecker = new StringGoldChecker(GOLDEN_HASH); 58 goldChecker.print(CompilerTestLauncher.launch(test)); 59 goldChecker.check(); 60 } 61 62 public static String randomString() { 63 int p = random.nextInt(100); 64 StringBuilder prefix = new StringBuilder(); 65 prefix.append(p); 66 prefix.append(PRE); 67 prefix.append(random.nextInt(1000)); 68 StringBuilder postfix = new StringBuilder(); 69 postfix.append(POST); 70 postfix.append(p); 71 if (p > 50) { 72 postfix.append(p); 73 } else { 74 postfix.append(p + 1); 75 } 76 postfix.append(random.nextInt(42)); 77 staticSB.append(prefix.toString()); 78 crop(staticSB); 79 postfix.append(staticSB.toString()); 80 String s = prefix.toString() + postfix.toString(); 81 82 return randomCut(s, 10); 83 } 84 85 private static final CompilerTest<Integer> test = new CompilerTest<Integer>("Explicit01") { 86 @Override 87 public Integer execute(Random random) { 88 StringBuilder res = new StringBuilder(); 89 int s = 200; 90 while (s > 0) { 91 s -= random.nextInt(50); 92 int p = random.nextInt(1000); 93 if (p > s) { 94 res.append(s); 95 } else { 96 res.append(p); 97 } 98 crop(res); 99 res.append(s + "x\u306B"); 100 res.append(randomString()); 101 } 102 103 return res.toString().hashCode(); 104 } 105 }; 106 107 108 }