77 lines
2.3 KiB
Java
77 lines
2.3 KiB
Java
/*
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* Copyright (c) 2007, 2018, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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import java.util.HashMap;
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import java.util.Locale;
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import java.util.Map;
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public class Variable {
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private static Map<String,Variable> vars = new HashMap<String,Variable>();
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private String name;
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private long value;
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Variable(String name, long value) {
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this.name = name;
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this.value = value;
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}
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public String getName() {
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return name;
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}
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public int intValue() {
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if (value > Integer.MAX_VALUE || value < Integer.MIN_VALUE) {
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throw new RuntimeException("Overflow/Underflow: " + value);
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}
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return (int) value;
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}
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public long longValue() {
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return value;
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}
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public void setValue(int v) { value = v; }
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public void setValue(long v) { value = v; }
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// static methods
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public static Variable newVar(String name, long value) {
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if (name.charAt(0) != '$') {
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throw new RuntimeException("wrong var name: " + name);
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}
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String s = name.toLowerCase(Locale.ROOT);
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Variable v = new Variable(name, value);
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put(name, v);
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return v;
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}
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static void put(String s, Variable var) {
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vars.put(s, var);
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}
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public static Variable get(String name) {
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return vars.get(name);
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}
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}
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