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/*
* Javassist, a Java-bytecode translator toolkit.
* Copyright (C) 1999- Shigeru Chiba. All Rights Reserved.
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. Alternatively, the contents of this file may be used under
* the terms of the GNU Lesser General Public License Version 2.1 or later,
* or the Apache License Version 2.0.
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*/
package javassist.compiler;
import java.util.HashMap;
import javassist.compiler.ast.Declarator;
public final class SymbolTable extends HashMap {
/** default serialVersionUID */
private static final long serialVersionUID = 1L;
private SymbolTable parent;
public SymbolTable() { this(null); }
public SymbolTable(SymbolTable p) {
super();
parent = p;
}
public SymbolTable getParent() { return parent; }
public Declarator lookup(String name) {
Declarator found = (Declarator)get(name);
if (found == null && parent != null)
return parent.lookup(name);
else
return found;
}
public void append(String name, Declarator value) {
put(name, value);
}
}
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