/*
* 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 BytecodeJsr extends BytecodeJmp {
BytecodeJsr(Method method, int bci) {
super(method, bci);
}
public int getTargetBCI() {
return bci() + javaShortAt(1);
}
public void verify() {
if (Assert.ASSERTS_ENABLED) {
Assert.that(isValid(), "check jsr");
}
}
public boolean isValid() {
return javaCode() == Bytecodes._jsr;
}
public static BytecodeJsr at(Method method, int bci) {
BytecodeJsr b = new BytecodeJsr(method, bci);
if (Assert.ASSERTS_ENABLED) {
b.verify();
}
return b;
}
/** Like at, but returns null if the BCI is not at jsr */
public static BytecodeJsr atCheck(Method method, int bci) {
/**代码未完, 请加载全部代码(NowJava.com).**/