soot.coffi.CONSTANT_Utf8_collector Maven / Gradle / Ivy
/* Soot - a J*va Optimization Framework
* Copyright (C) 2001 Michael Pan ([email protected])
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
/*
* Modified by the Sable Research Group and others 2001.
* See the 'credits' file distributed with Soot for the complete list of
* contributors. (Soot is distributed at http://www.sable.mcgill.ca/soot)
*/
package soot.coffi;
import soot.*;
import java.util.*;
/** Provides sharing for Utf8_info string objects
* reused in different contexts. */
public class CONSTANT_Utf8_collector
{
public CONSTANT_Utf8_collector( Singletons.Global g ) {}
public static CONSTANT_Utf8_collector v() { return G.v().soot_coffi_CONSTANT_Utf8_collector(); }
HashMap hash = null;
synchronized CONSTANT_Utf8_info add(CONSTANT_Utf8_info _Utf8_info)
{
if (hash == null)
{
hash = new HashMap();
}
String Utf8_str_key = _Utf8_info.convert();
if (hash.containsKey(Utf8_str_key))
{
return hash.get(Utf8_str_key);
}
hash.put(Utf8_str_key, _Utf8_info);
_Utf8_info.fixConversion(Utf8_str_key);
return _Utf8_info;
}
}