changeset 10251 | 71b8938a2821 |
parent 10250 | 0794cd144834 |
child 10252 | 0981ce1c3eef |
--- a/hotspot/agent/src/share/classes/sun/jvm/hotspot/interpreter/BytecodeFastIAccess0.java Wed Jul 20 18:04:17 2011 -0700 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,78 +0,0 @@ -/* - * Copyright (c) 2002, Oracle and/or its affiliates. All rights reserved. - * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. - * - * This code is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 only, as - * published by the Free Software Foundation. - * - * This code is distributed in the hope that it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License - * version 2 for more details (a copy is included in the LICENSE file that - * accompanied this code). - * - * You should have received a copy of the GNU General Public License version - * 2 along with this work; if not, write to the Free Software Foundation, - * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. - * - * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA - * or visit www.oracle.com if you need additional information or have any - * questions. - * - */ - -package sun.jvm.hotspot.interpreter; - -import sun.jvm.hotspot.oops.*; -import sun.jvm.hotspot.utilities.*; - -public class BytecodeFastIAccess0 extends BytecodeGetPut { - BytecodeFastIAccess0(Method method, int bci) { - super(method, bci); - } - - public int index() { - return (int) (0xFF & javaShortAt(2)); - } - - public boolean isStatic() { - return false; - } - - public void verify() { - if (Assert.ASSERTS_ENABLED) { - Assert.that(isValid(), "check fast_iaccess_0"); - } - } - - public boolean isValid() { - return code() == Bytecodes._fast_iaccess_0; - } - - public static BytecodeFastIAccess0 at(Method method, int bci) { - BytecodeFastIAccess0 b = new BytecodeFastIAccess0(method, bci); - if (Assert.ASSERTS_ENABLED) { - b.verify(); - } - return b; - } - - /** Like at, but returns null if the BCI is not at fast_iaccess_0 */ - public static BytecodeFastIAccess0 atCheck(Method method, int bci) { - BytecodeFastIAccess0 b = new BytecodeFastIAccess0(method, bci); - return (b.isValid() ? b : null); - } - - public static BytecodeFastIAccess0 at(BytecodeStream bcs) { - return new BytecodeFastIAccess0(bcs.method(), bcs.bci()); - } - - public String toString() { - StringBuffer buf = new StringBuffer(); - buf.append("aload_0"); - buf.append(spaces); - buf.append(super.toString()); - return buf.toString(); - } -}