| /* |
| * Copyright 2002 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
| * CA 95054 USA or visit www.sun.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(); |
| } |
| } |