1 /* 2 * Copyright (c) 2010, 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 package jdk.nashorn.internal.codegen.types; 27 28 import jdk.internal.org.objectweb.asm.MethodVisitor; 29 30 /** 31 * Bitwise operations not supported by all types 32 */ 33 interface BytecodeBitwiseOps { 34 35 /** 36 * Pop and logically shift the two values on top of the stack (steps, value) 37 * right and push the result on the stack 38 * 39 * @param method method visitor 40 * @return result type 41 */ 42 Type shr(MethodVisitor method); 43 44 /** 45 * Pop and arithmetically shift of the two values on top of the stack 46 * (steps, value) right and push the result on the stack 47 * 48 * @param method method visitor 49 * @return result type 50 */ 51 Type sar(MethodVisitor method); 52 53 /** 54 * Pop and logically shift of the two values on top of the stack (steps, 55 * value) left and push the result on the stack 56 * 57 * @param method method visitor 58 * @return result type 59 */ 60 Type shl(MethodVisitor method); 61 62 /** 63 * Pop and AND the two values on top of the stack and push the result on the 64 * stack 65 * 66 * @param method method visitor 67 * @return result type 68 */ 69 Type and(MethodVisitor method); 70 71 /** 72 * Pop and OR the two values on top of the stack and push the result on the 73 * stack 74 * 75 * @param method method visitor 76 * @return result type 77 */ 78 Type or(MethodVisitor method); 79 80 /** 81 * Pop and XOR the two values on top of the stack and push the result on the 82 * stack 83 * 84 * @param method method visitor 85 * @return result type 86 */ 87 Type xor(MethodVisitor method); 88 89 /** 90 * Comparison with int return value, e.g. LCMP. 91 * 92 * @param method the method visitor 93 * @return int return value 94 */ 95 Type cmp(MethodVisitor method); 96 }