asmtools/src/org/openjdk/asmtools/jdis/Options.java

93 lines
2.6 KiB
Java

/*
* Copyright (c) 1996, 2014, 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 org.openjdk.asmtools.jdis;
import java.util.EnumSet;
/**
*
*/
public class Options {
/*-------------------------------------------------------- */
/* Options Fields */
private static Options ref;
static public enum PR {
CP, // print Constant Pool
LNT, // print Line Number table
PC, // print Program Counter - for all instr
LABS, // print Labels (as identifiers)
CPX, // print CP indeX along with arguments
SRC, // print Source Line as comment
HEX, // print numbers as hexadecimals
VAR, // print local variables declarations
DEBUG; // Debug flag
};
static private final EnumSet<PR> JASM = EnumSet.<PR>of(PR.LABS); // default options
static private final EnumSet<PR> CODE = EnumSet.<PR>of(
PR.CP,
PR.LNT,
PR.PC,
PR.CPX,
PR.VAR
);
static private EnumSet<PR> printOptions = JASM;
/*-------------------------------------------------------- */
private Options() {
}
public static Options OptionObject() {
if (ref == null) {
ref = new Options();
}
return ref;
}
public void set(PR val) {
printOptions.add(val);
}
public void setCodeOptions() {
printOptions = CODE;
}
public boolean contains(PR val) {
return printOptions.contains(val);
}
public boolean debug() {
return printOptions.contains(PR.DEBUG);
}
@Override
public String toString() {
return printOptions.toString();
}
}